{"id":4689,"date":"2026-07-26T11:50:00","date_gmt":"2026-07-26T03:50:00","guid":{"rendered":"https:\/\/www.nickelcasting.com\/"},"modified":"2026-07-22T11:42:43","modified_gmt":"2026-07-22T03:42:43","slug":"invar-36-bar-precision-tooling","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/ko\/invar-36-bar-precision-tooling\/","title":{"rendered":"\uc815\ubc00 \uacf5\uad6c\uc6a9 \uc778\ubc14 36 \ubc14: \ub0ae\uc740 \ud33d\ucc3d\ub960, \uc548\uc815\uc131 \ubc0f \uac00\uacf5\uc131"},"content":{"rendered":"
\"\uc815\ubc00<\/figure>\n

'\uc5d0 \ub300\ud55c \uac80\uc0c9 Invar 36 bar precision tooling<\/strong> \uc774\ub294 \ub300\uac1c \uc18c\uc7ac \uc120\uc815 \uacfc\uc815\uc774 \uc77c\ubc18\uc801\uc778 \uc5f0\uad6c \ub2e8\uacc4\uc5d0\uc11c \ubc97\uc5b4\ub098, \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uac80\ud1a0\ub97c \ud1b5\uacfc\ud574\uc57c \ud558\ub294 \uad6c\ub9e4 \ub2e8\uacc4\ub85c \ub118\uc5b4\uac14\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uad6c\ub9e4\uc790\ub294 \ub2e8\uc21c\ud788 \ub4f1\uae09\uba85\ub9cc\uc73c\ub85c\ub294 \ubd80\uc871\ud558\uba70, \uc81c\ud488\uc758 \ud615\ud0dc, \uc0ac\uc6a9 \ud658\uacbd\uc758 \ud654\ud559\uc801 \ud2b9\uc131, \uc628\ub3c4, \uce58\uc218, \uc0c1\ud0dc, \uac80\uc0ac \uae30\uc900 \ubc0f \ub0a9\ud488 \uc870\uac74 \ub4f1\uc774 \ubaa8\ub450 \uc77c\uce58\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

Invar 36 (Fe-Ni low-expansion alloy) is commonly evaluated for composite-tooling pins, optical mounts, metrology standards, precision spacers, calibration fixtures and cryogenic supports. Its value comes from the way its chemistry and processing respond to tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements. That benefit can be lost if the supplier quotes the wrong condition, a different product standard, a nominal wall instead of minimum wall, or a heat with incomplete traceability.<\/p>\n

\uc774 \uc548\ub0b4\uc11c\ub294 \uc124\uacc4 \uc5d4\uc9c0\ub2c8\uc5b4, \uc720\uc9c0\ubcf4\uc218 \ud300, \uc81c\uc791\uc5c5\uccb4, \uc870\ub2ec \uad00\ub9ac\uc790 \ubc0f \ud574\uc678 \uad6c\ub9e4 \ub2f4\ub2f9\uc790\ub97c \ub300\uc0c1\uc73c\ub85c \uc791\uc131\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \uc548\ub0b4\uc11c\uc5d0\uc11c\ub294 \uc2e0\uc18d\ud55c \uc120\uc815 \uae30\uc900, \uacac\uc801 \uc694\uccad\uc11c(RFQ)\uc5d0 \ud3ec\ud568\ub418\uc5b4\uc57c \ud560 \uc815\ubcf4, \uadf8\ub9ac\uace0 28Nickel\uc774 \ube44\uad50 \uac00\ub2a5\ud55c \uacac\uc801\uc744 \uc791\uc131\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \uac80\uc0ac \uc99d\ube59 \uc790\ub8cc\uc5d0 \ub300\ud574 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\ud504\ub85c\uc81d\ud2b8 \uacac\uc801\uc744 \uc6d0\ud558\uc2dc\uba74 28Nickel\uc5d0 \ubb38\uc758\ud574 \uc8fc\uc138\uc694<\/a> \ud569\uae08 \uba85\uce6d, \uc81c\ud488 \ud615\ud0dc, \uce58\uc218, \uc218\ub7c9, \uc791\ub3d9 \uc628\ub3c4, \ub9e4\uccb4, \uac80\uc0ac \ubc94\uc704, \ubaa9\uc801\uc9c0 \ubc0f \uc694\uad6c\ub418\ub294 \ub3c4\ucc29\uc77c\uc744 \ud3ec\ud568\ud558\uc5ec.<\/p>\n

Invar 36 bar precision tooling: The Fast Application Decision<\/h2>\n\n\n\n\n\n\n\n\n\n
\uc120\ud0dd \ud56d\ubaa9<\/th>\n\uc8fc\ubb38\ud558\uae30 \uc804\uc5d0 \ud655\uc778\ud574\uc57c \ud560 \uc0ac\ud56d<\/th>\n<\/tr>\n<\/thead>\n
\uad6c\ub9e4 \uc2dc \uac00\uc7a5 \uc911\uc694\ud55c \uace0\ub824 \uc0ac\ud56d<\/td>\nIs Invar 36 (Fe-Ni low-expansion alloy) the correct grade for the stated tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements?<\/td>\n<\/tr>\n
\uc81c\ud488 \ud615\ud0dc<\/td>\n\uc6d0\ud615 \ubd09; \ub3c4\uba74\uc5d0 \ubc00\ub9c1 \uc81c\ud488, \uc808\ub2e8 \ube14\ub7ad\ud06c, \ucf54\uc77c \ub610\ub294 \uac00\uacf5\ub41c \uc18c\uc7ac \uc911 \uc5b4\ub5a4 \uac83\uc774 \ud544\uc694\ud55c\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uad00\ub9ac \ubb38\uc11c<\/td>\nASTM F1684 or the project controlled-expansion specification; confirm the current edition, scope and any ASME, EN, NACE or owner additions.<\/td>\n<\/tr>\n
\uc8fc\uc694 \uae30\uc220\uc801 \uc704\ud5d8<\/td>\nthe low CTE is only useful after stress relief and stabilization; a generic Fe-Ni bar without expansion test evidence is not a precision reference.<\/td>\n<\/tr>\n
\ucd9c\uc18c \uc804 \uc99d\uac70<\/td>\nchemistry, mean CTE over the specified range, tensile and hardness, dimensional inspection, ultrasonic quality and heat traceability.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The table is a screening tool, not a substitute for a design calculation. Invar 36 (Fe-Ni low-expansion alloy) can perform very differently as a thick welded plate, a cold-finished bar, a seamless tube or a slit coil. The actual thermal cycle, stress state, surface condition and fabrication route must be included before a substitute is approved.<\/p>\n

\uc7ac\ub8cc\uc758 \uc885\ub958, \ub4f1\uae09 \ubc0f \uc77c\ubc18\uc801\uc778 \uba85\uce6d<\/h2>\n

Invar 36 (Fe-Ni low-expansion alloy) may appear under a trade name, an UNS number, an ASTM product standard or a customer material code. The quotation should list all of them together and state the product form. A bar, plate, tube and coil can be controlled by different specifications even when the chemistry is nominally the same.<\/p>\n

\uba85\ubaa9\uc0c1 \ud654\ud559 \uc131\ubd84 \ubc0f \uc0c1\ud0dc<\/h3>\n\n\n\n\n\n\n\n\n
\ud56d\ubaa9<\/th>\n\uc77c\ubc18\uc801\uc778 \uc8fc\ubb38 \ub0b4\uc6a9<\/th>\n\uad6c\ub9e4\uc790\uac00 \uc774\ub97c \uc8fc\ubaa9\ud574\uc57c \ud558\ub294 \uc774\uc720<\/th>\n<\/tr>\n<\/thead>\n
\ud569\uae08\uc758 \uc815\uccb4\uc131<\/td>\ncommonly UNS K93600\/K93601 by product route<\/td>\n\uc77c\ubc18\uc801\uc778 \ub2c8\ucf08 \ud45c\uae30\uac00 \uc544\ub2cc, \uc815\ud655\ud55c UNS \ub4f1\uae09\uc774\ub098 \uace0\uac1d \uc9c0\uc815 \ub4f1\uae09\uc744 \uc0ac\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\ub2c8\ucf08 \ub9e4\ud2b8\ub9ad\uc2a4<\/td>\n\uc870\uc808\ub41c \ub2c8\ucf08 \ub610\ub294 \ub2c8\ucf08-\ucca0 \uae30\ubc18<\/td>\n\uc774 \ud589\ub82c\uc740 \ubd80\uc2dd, \uc5f4 \ub610\ub294 \ud33d\ucc3d \uac70\ub3d9\uc744 \ub098\ud0c0\ub0b4\uba70, \ud654\ud559\uc801 \uc81c\ud55c \uc0ac\ud56d\uc740 \uaddc\uaca9\uc5d0 \ub530\ub77c \uad00\ub9ac\ub429\ub2c8\ub2e4.<\/td>\n<\/tr>\n
\uac15\ud654 \ub610\ub294 \uc548\uc815\ud654 \ucca8\uac00\uc81c<\/td>\n\uac01 \ub4f1\uae09\ubcc4 Cr, Mo, Nb, Ti, Al, Cu \ub610\ub294 Co \ucca8\uac00<\/td>\n\uc774\ub7ec\ud55c \ucca8\uac00\uc81c\ub294 \ub0b4\uc2dd\uc131, \ub178\ud654 \uacbd\ud654, \ud06c\ub9ac\ud504 \ub610\ub294 \uc81c\uc5b4\ub41c \ud33d\ucc3d\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n
\uc870\uac74<\/td>\n\uc8fc\ubb38 \uc0ac\uc591\uc5d0 \ub530\ub77c \uc5b4\ub2d0\ub9c1, \uc6a9\uc561 \ucc98\ub9ac, \ub178\ud654 \ucc98\ub9ac, \ub0c9\uac04 \uac00\uacf5 \ub610\ub294 \uc548\uc815\ud654 \ucc98\ub9ac\ub428<\/td>\n\uc870\uac74\uc5d0 \ub530\ub77c \uac15\ub3c4, \uc131\ud615 \ubc18\uc751, \uac00\uacf5\uc131 \ubc0f \uce58\uc218 \uc548\uc815\uc131\uc774 \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\uc774 \ud45c\ub294 \uc870\ub2ec \uc694\uc57d\ud45c\uc77c \ubfd0, \uc218\ub77d \uc0ac\uc591\uc11c\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0\ub294 \uc801\uc6a9\ub418\ub294 \ud45c\uc900\uc758 \uac1c\uc815\ud310\uacfc \ud0c4\uc18c, \ud669, \uc785\ub3c4, \ub178\ud654, \uc548\uc815\ud654, \ubd80\uc2dd \uc2dc\ud5d8 \ub610\ub294 \uccad\uacb0\ub3c4\uc5d0 \uad00\ud55c \ubaa8\ub4e0 \ucd94\uac00 \uc694\uad6c \uc0ac\ud56d\uc774 \uba85\uc2dc\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc774 \ub4f1\uae09\uc774 \uba85\uc2dc\ub41c \uc11c\ube44\uc2a4\uc5d0 \uc801\ud569\ud55c \uc774\uc720<\/h2>\n

The low CTE is only useful after stress relief and stabilization; a generic Fe-Ni bar without expansion test evidence is not a precision reference. In practical terms, the designer should compare the full service envelope rather than a single marketing claim. Concentration, contaminants, flow velocity, deposits, stress, thermal cycling and dissimilar-metal contact can move a component outside the published guidance for any nickel alloy.<\/p>\n

Potential alternatives include Invar 42 for matched-expansion seals, Kovar-type alloys for glass and ceramic interfaces, or carbon-fiber composites for directional stiffness. These are not automatic substitutions. Each alternative needs a review of corrosion data, mechanical properties, weldability, code status, availability and lifecycle cost.<\/p>\n

\uc2e0\uccad \ubc0f \uc11c\ube44\uc2a4 \ucc3d\uad6c<\/h2>\n

For composite-tooling pins, optical mounts, metrology standards, precision spacers, calibration fixtures and cryogenic supports, the first engineering check is the actual combination of tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements. Record normal and upset temperature, pressure or vacuum, pH, concentration, dissolved oxygen, halides, sulfur, solids, velocity and cleaning chemicals. Also record how the part is supported, joined, coated, insulated and inspected.<\/p>\n

\ub2c8\ucf08 \ud569\uae08\uc758 \uc131\ub2a5\uc740 \uc885\uc885 \uacc4\uba74 \ubd80\uc704\uc5d0\uc11c \uc800\ud558\ub418\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uac1c\uc2a4\ud0b7 \ud2c8\uc0c8, \uc6a9\uc811 \uc5f4\uc601\ud5a5\ubd80, \ubca0\uc5b4\ub9c1 \uc800\ub110, \ud29c\ube0c\uc640 \ud29c\ube0c\uc2dc\ud2b8 \uc811\ud569\ubd80, \ub610\ub294 \ub3c4\uae08\ub41c \uac00\uc7a5\uc790\ub9ac \ub4f1\uc774 \uc774\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub3c4\uba74 \ubc0f \uc81c\uc870 \uacc4\ud68d\uc11c\uc5d0\ub294 \ub2e8\uc21c\ud788 \uc7ac\ub8cc \uc790\uccb4\ubfd0\ub9cc \uc544\ub2c8\ub77c \uacc4\uba74 \ubd80\uc704\uc758 \ud45c\uba74 \ucc98\ub9ac \ubc0f \uac80\uc0ac \uc0ac\ud56d\ub3c4 \uba85\uc2dc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc81c\ud488 \ud615\ud0dc, \uce58\uc218 \ubc0f \uc0c1\ud0dc<\/h2>\n

For a round bar order, state finished diameter, straightness, roundness, machining allowance, CTE test direction, surface finish and lot size. If a cut blank or machined part is acceptable, list it as an alternative line so the supplier can show the yield and material traceability clearly. When the finished dimension is critical, give the guaranteed minimum or maximum value and the measurement method.<\/p>\n

Condition is equally important. Rough machine, stabilize, finish machine, avoid aggressive grinding heat and verify final dimensions after laboratory temperature equalization. A supplier should quote the delivered condition, intermediate treatment and any final stabilization or aging separately. This avoids a common commercial error in which a lower-cost annealed product is compared with a fully heat-treated or ground product.<\/p>\n

\ud45c\uc900 \ubc0f \uc0ac\uc591<\/h2>\n

A typical starting point is ASTM F1684 or the project controlled-expansion specification. Confirm that the standard covers the exact alloy, form, thickness or diameter and test route. Pressure equipment may add ASME, PED or project-code requirements. Chemical and offshore work may add NACE, ISO, owner or third-party inspection requirements. Aerospace and nuclear work may require an AMS, source approval or special-process audit.<\/p>\n

\uc0c1\ud45c\uba85\ub9cc\uc73c\ub85c \uc8fc\ubb38\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624. \uad6c\ub9e4 \uc8fc\ubb38\uc11c\uc5d0 \ub4f1\uae09, UNS \ubc88\ud638, \ud45c\uc900 \ubc0f \uac1c\uc815\ud310\uc744 \uba85\uc2dc\ud558\uace0, \uacf5\uae09\uc5c5\uccb4 \uacac\uc801\uc11c\uc5d0 \ubaa8\ub4e0 \uc0c1\uc774 \uc0ac\ud56d\uc744 \ub098\uc5f4\ud558\uc2ed\uc2dc\uc624. \uc81c\ucca0\uc18c\uc5d0\uc11c \ub300\uccb4\uc7ac\ub97c \uc81c\uc548\ud558\ub294 \uacbd\uc6b0, \ubcc0\uacbd\ub41c \ud654\ud559 \uc131\ubd84, \uc0c1\ud0dc, \uc2dc\ud5d8 \uacb0\uacfc, \ub0a9\uae30 \ubc0f \uc2b9\uc778 \uc0c1\ud0dc\ub97c \ud3ec\ud568\ud55c \ubcc4\ub3c4\uc758 \uae30\uc220 \uc0ac\uc591 \ud56d\ubaa9\uc744 \uc694\uad6c\ud558\uc2ed\uc2dc\uc624.<\/p>\n

\uc81c\uc870, \uac00\uacf5 \ubc0f \ud45c\uba74 \ucc98\ub9ac<\/h2>\n

Manufacturing route affects the delivered result. Rough machine, stabilize, finish machine, avoid aggressive grinding heat and verify final dimensions after laboratory temperature equalization. The route should be qualified on the actual thickness or diameter because a parameter that works on thin strip may not work on a heavy plate or large bar.<\/p>\n

\ub2c8\ucf08 \ud569\uae08\uc740 \uac00\uacf5 \uacbd\ud654\uac00 \ube60\ub974\uac8c \uc77c\uc5b4\ub098\uba70 \uc794\ub958 \uc751\ub825\uc744 \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc804\uc6a9 \uacf5\uad6c\ub97c \uc0ac\uc6a9\ud558\uace0, \ud0c4\uc18c\uac15\uacfc\uc758 \uc811\ucd09\uc744 \ud53c\ud558\uba70, \uc808\uc0ad\ub0a0\uc744 \ub0a0\uce74\ub86d\uac8c \uc720\uc9c0\ud558\uace0, \uc5f4 \uc785\ub825\uc744 \uc801\uc808\ud788 \uc81c\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4. \uc6a9\uc811 \ub610\ub294 \uc131\ud615 \ud6c4\uc5d0\ub294 \uc801\uaca9\ud55c \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0b0\ud654\ubb3c\uacfc \uc791\uc5c5\uc7a5 \ub0b4 \uc624\uc5fc \ubb3c\uc9c8\uc744 \uc81c\uac70\ud574\uc57c \ud569\ub2c8\ub2e4. \uc0b0\uc138\ucc99, \ud328\uc2dc\ubca0\uc774\uc158, \ube14\ub77c\uc2a4\ud305 \ubc0f \ud654\ud559 \uc138\uc815\uc740 \ud604\uc7a5\uc5d0\uc11c \uc989\ud765\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\uae30\ubcf4\ub2e4\ub294 \uc81c\uc791 \uc804\uc5d0 \uc0ac\uc804\uc5d0 \ud569\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ud569\ub9ac\uc801\uc778 \uad6c\ub9e4\ub97c \uc704\ud55c \uac80\ud1a0 \ubc0f \uc99d\uac70<\/h2>\n\n\n\n\n\n\n\n\n
\uc81c\uc5b4 \uc9c0\uc810<\/th>\n\uc804\ud615\uc801\uc778 \uc99d\uac70<\/th>\n\ub9b4\ub9ac\uc2a4 \ub178\ud2b8<\/th>\n<\/tr>\n<\/thead>\n
\uba38\ud2f0\ub9ac\uc5bc \uc544\uc774\ub374\ud2f0\ud2f0<\/td>\n\uc5f4\ud654\ud559, MTC \ubc0f PMI<\/td>\n\ubaa8\ub4e0 \uc808\ub2e8 \ubd80\ud488, \ubd09, \ud29c\ube0c \ub610\ub294 \ucf54\uc77c\uc5d0 \uc77c\ub828\ubc88\ud638\uac00 \ud45c\uc2dc\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uce58\uc218<\/td>\nMeasure finished diameter, straightness, roundness, machining allowance, CTE test direction, surface finish and lot size<\/td>\n\uc124\uacc4 \uae30\uc900\uc5d0\uc11c \uc694\uad6c\ud558\ub294 \uacbd\uc6b0, \uacf5\uce6d\uac12 \ubc0f \ucd5c\uc18c\uac12\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uc815\uc9c1<\/td>\nchemistry, mean CTE over the specified range, tensile and hardness, dimensional inspection, ultrasonic quality and heat traceability<\/td>\n\uc0dd\uc0b0\uc5d0 \ub4e4\uc5b4\uac00\uae30 \uc804\uc5d0 \ubc29\ubc95, \uc801\uc6a9 \ubc94\uc704, \uad50\uc815 \ubc0f \ud5c8\uc6a9 \uae30\uc900\uc744 \uc124\uc815\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uc870\uc791\ub41c \uc99d\uac70<\/td>\nrough machine, stabilize, finish machine, avoid aggressive grinding heat and verify final dimensions after laboratory temperature equalization<\/td>\n\uc6a9\uc811, \uc138\ucc99, \uc5f4\ucc98\ub9ac \ubc0f \ucd5c\uc885 \uac80\uc0ac \uae30\ub85d\uc744 \ud574\ub2f9 \uc791\uc5c5\uacfc \ud568\uaed8 \ubcf4\uad00\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

PMI\ub294 \ud569\uae08 \uc2dd\ubcc4\uc5d0 \uc720\uc6a9\ud558\uc9c0\ub9cc, \ud0c4\uc18c \ud568\ub7c9, \uc5f4\ucc98\ub9ac, \uae30\uacc4\uc801 \ud2b9\uc131, \uacb0\uc815\ub9bd \ud06c\uae30, \ube44\ud30c\uad34 \uac80\uc0ac(NDE) \uc801\uc6a9 \ubc94\uc704 \ub610\ub294 \ubd80\uc2dd \uac70\ub3d9\uc744 \uc785\uc99d\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4. \uc2dc\ud5d8 \ubcf4\uace0\uc11c\ub97c \ub3c4\uba74\uacfc \ub300\uc870\ud558\uace0, \uc808\ub2e8, \uac00\uacf5, \uc2ac\ub9ac\ud305 \ub610\ub294 \uad7d\ud798 \uc791\uc5c5 \ud6c4\uc5d0\ub3c4 \uc5f4\ucc98\ub9ac \ubc88\ud638\uac00 \uba85\ud655\ud788 \ud655\uc778\ub420 \uc218 \uc788\ub3c4\ub85d \ud558\uc2ed\uc2dc\uc624.<\/p>\n

\ube44\uc6a9, \ucd5c\uc18c \uc8fc\ubb38 \uc218\ub7c9 \ubc0f \ub0a9\uae30<\/h2>\n

\uac00\uaca9\uc740 \ub2c8\ucf08 \ub2e8\uc704, \uc6a9\ud574\ub7c9, \uac00\uacf5 \uacf5\uc815, \uc81c\ud488 \uc218\uc728, \uc5f4\ucc98\ub9ac, \uae30\uacc4 \uac00\uacf5, \ube44\ud30c\uad34 \uac80\uc0ac(NDE), \uc808\ub2e8 \ub124\uc2a4\ud305, \ud3ec\uc7a5 \ubc0f \ubb38\uc11c \uc218\uc5d0 \ub530\ub77c \uacb0\uc815\ub429\ub2c8\ub2e4. \uc18c\ud615 \ub9de\ucda4\ud615 \ucf54\uc77c\uc774\ub098 \uc9e7\uc740 \uae38\uc774\uc758 \ub300\ud615 \ubd09\uc7ac\uc758 \uacbd\uc6b0, \ub2e8\uc704 \uc911\ub7c9\uc774 \ub0ae\ub354\ub77c\ub3c4 \uacf5\uc7a5 \ucd5c\uc18c \uc8fc\ubb38\ub7c9\uc774 \uc801\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc7ac\uace0 \uc790\uc7ac\ub97c \uc0ac\uc6a9\ud558\uba74 \ub9ac\ub4dc \ud0c0\uc784\uc744 \ub2e8\ucd95\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc5ec\uc804\ud788 \ud544\uc218 \uc2dc\ud5d8 \ubc0f \ucd94\uc801\uc131 \uac80\ud1a0\ub97c \ud1b5\uacfc\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uacf5\uae09\uc5c5\uccb4\uc5d0 \uc694\uccad\ud55c \uae30\uc900\uc5d0 \ub530\ub978 \uacac\uc801\uc744 \uba3c\uc800 \uc81c\uc2dc\ud558\ub3c4\ub85d \uc694\uccad\ud558\uace0, \ub300\uc548 \uc0ac\ud56d\uc740 \ubcc4\ub3c4\uc758 \ud589\uc5d0 \uae30\uc7ac\ud558\ub3c4\ub85d \ud558\uc2ed\uc2dc\uc624. \ud569\uae08, \uaddc\uaca9, \uce58\uc218, \uc0c1\ud0dc, \uc2dc\ud5d8 \ud56d\ubaa9, \uc808\ub2e8 \uc5ec\uc720, \uc778\uc99d\uc11c, \ud3ec\uc7a5, \uc778\ucf54\ud140\uc988 \ubc0f \ub3c4\ucc29\uc77c\uc744 \uc885\ud569\uc801\uc73c\ub85c \ube44\uad50\ud558\uc2ed\uc2dc\uc624. \ud0ac\ub85c\uadf8\ub7a8\ub2f9 \uac00\uaca9\uc774 \uc800\ub834\ud558\ub354\ub77c\ub3c4 \uc2dc\ud5d8 \ud56d\ubaa9\uc774 \uc801\uac70\ub098 \ud5c8\uc6a9 \uc624\ucc28\uac00 \ub113\ub2e4\uba74 \ube44\uad50 \ub300\uc0c1\uc774 \ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc57c\uae08\ud559\uc801 \uba54\ucee4\ub2c8\uc998\uacfc \ubb3c\uc131 \uac04\uc758 \uc0c1\ucda9 \uad00\uacc4<\/h2>\n

The useful behavior of Invar 36 (Fe-Ni low-expansion alloy) comes from a controlled combination of matrix chemistry, minor additions, thermomechanical processing and final condition. Chromium, molybdenum, iron, copper, niobium, titanium or aluminum can change passivity, phase stability, precipitation response, creep strength, magnetic behavior and weld sensitivity. That is why two products with similar trade names can behave differently if one is solution annealed, one is aged, and one has been heavily cold worked.<\/p>\n

\uc124\uacc4 \ud300\uc740 \ub2e4\uc74c \uc138 \uac00\uc9c0 \uc9c8\ubb38\uc744 \uad6c\ubd84\ud558\uc5ec \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4. \uccab\uc9f8, \uc5b4\ub5a4 \ud2b9\uc131\uc774 \uc8fc\uc694 \uace0\uc7a5 \ubaa8\ub4dc\ub97c \ubc29\uc9c0\ud558\ub294\uac00? \ubd80\uc2dd \uc5ec\uc720, \ud56d\ubcf5 \uac15\ub3c4, \ud30c\uad34 \uc778\uc131, \ub0ae\uc740 \ud33d\ucc3d\ub960, \ud06c\ub9ac\ud504 \uc800\ud56d, \ud53c\ub85c \uc218\uba85, \ub610\ub294 \uc804\uae30\uc801 \uc548\uc815\uc131 \uc911 \uc5b4\ub290 \uac83\uc778\uac00? \ub458\uc9f8, \ud574\ub2f9 \ud2b9\uc131\uc740 \uc5b4\ub5a4 \uc628\ub3c4\uc640 \ud658\uacbd\uc5d0\uc11c \uce21\uc815\ub418\ub294\uac00? \uc14b\uc9f8, \ub0a9\ud488\ub41c \uc81c\ud488\uc740 \uc808\ub2e8, \uc6a9\uc811, \ub3c4\uae08, \uae30\uacc4 \uac00\uacf5, \uc138\ucc99 \ubc0f \uc0ac\uc6a9 \uc8fc\uae30 \uacfc\uc815\uc744 \uac70\uce5c \ud6c4\uc5d0\ub3c4 \ud574\ub2f9 \ud2b9\uc131\uc744 \uc720\uc9c0\ud558\ub294\uac00? \uccab \ubc88\uc9f8 \uc9c8\ubb38\uc5d0\ub9cc \ub2f5\ud558\ub294 \uacf5\uae09\uc5c5\uccb4 \ube44\uad50\ub294 \ubd88\uc644\uc804\ud558\ub2e4.<\/p>\n\n\n\n\n\n\n\n\n
\uac80\ud1a0 \ub300\uc0c1 \ubd80\ub3d9\uc0b0<\/th>\n\uc774 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc774\uac83\uc774 \uc911\uc694\ud55c \uc774\uc720<\/th>\n\uc774\ub97c \uc81c\uc5b4\ud558\ub294 \ubc29\ubc95<\/th>\n<\/tr>\n<\/thead>\n
\ub0b4\uc2dd\uc131<\/td>\nCompare tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements at normal, upset and cleaning conditions.<\/td>\n\ub2e8\uc21c\ud788 \ub4f1\uae09\ub9cc \uc81c\uc2dc\ud558\ub294 \uc8fc\uc7a5\uc774 \uc544\ub2c8\ub77c, \uac80\uc99d\ub41c \ub370\uc774\ud130\uc640 \uc11c\uba74 \ud615\ud0dc\uc758 \ub9e4\uccb4 \ubd84\uc11d\uc744 \ud65c\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uae30\uacc4\uc801 \uc0c1\ud0dc<\/td>\n\uac15\ub3c4, \uacbd\ub3c4 \ubc0f \uc5f0\uc131\uc740 \uc5f4\ucc98\ub9ac\uc640 \ub0c9\uac04 \uac00\uacf5\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/td>\n\uc0c1\ud0dc, \uc2dc\ud5d8 \uc628\ub3c4, \ubc29\ud5a5 \ubc0f \ud5c8\uc6a9 \ud55c\uacc4\ub97c \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\ucc28\uc6d0\uc801 \uac70\ub3d9<\/td>\n\ud33d\ucc3d, \uc218\ucd95, \uc2a4\ud504\ub9c1\ubc31 \ubc0f \uc794\ub958 \uc751\ub825\uc740 \uc644\uc81c\ud488\uc758 \uc704\uce58\ub97c \uc774\ub3d9\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td>\n\uc548\uc815\ud654 \uc870\uac74, \uc131\ud615 \uc21c\uc11c, \uac00\uacf5 \uc5ec\ubd84 \ubc0f \ucd5c\uc885 \uac80\uc0ac \uc628\ub3c4\ub97c \ud655\uc815\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\ud45c\uba74 \uc0c1\ud0dc<\/td>\n\uc2a4\ucf00\uc77c, \ubc84, \ubc15\ud78c \ucca0\ubd84 \ubc0f \ud45c\uba74 \uac70\uce60\uae30\ub294 \ubd80\uc2dd\uc774\ub098 \ub204\ucd9c\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/td>\n\ub9c8\uac10, \uc138\ucc99, \ud45c\uba74 \uac70\uce60\uae30, \uc678\uad00 \uae30\uc900 \ubc0f \ud3ec\uc7a5 \uad00\ub9ac \uc0ac\ud56d\uc744 \uc815\uc758\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\uc790\uc7ac \ucd9c\uace0 \uc804 \uc124\uacc4 \uacc4\uc0b0 \uc785\ub825\uac12<\/h2>\n

For composite-tooling pins, optical mounts, metrology standards, precision spacers, calibration fixtures and cryogenic supports, collect the inputs that determine the actual design margin. At minimum, record the section geometry, load path, support spacing, pressure or vacuum, temperature profile, thermal gradients, cycle count, medium composition, flow velocity, deposits, cleaning chemicals and expected service life. For a rotating or sealing component, add alignment, contact pressure, surface speed, friction, lubrication and wear. For a welded fabrication, add joint efficiency, heat input, restraint, inspection access and repair limits.<\/p>\n

\uad00\ub828 \uaddc\uaca9 \ub610\ub294 \uace0\uac1d\uc758 \uc124\uacc4 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774\ub7ec\ud55c \uc785\ub825\uac12\uc744 \uc694\uad6c\ub418\ub294 \ucd5c\uc18c \ub450\uaed8, \uc9c1\uacbd, \uacbd\ub3c4, \ud33d\ucc3d \uc5ec\uc720 \ub610\ub294 \ud53c\ub85c \uc5ec\uc720\ub85c \ubcc0\ud658\ud558\uc2ed\uc2dc\uc624. \uadf8\ub7f0 \ub2e4\uc74c \uc0b0\ud654\ud53c\ub9c9 \uc81c\uac70, \uae30\uacc4 \uac00\uacf5, \uc5f0\ub9c8, \ubd80\uc2dd \ubc0f \uce58\uc218 \ud3b8\ucc28\ub97c \uace0\ub824\ud55c \uc81c\uc870 \uc5ec\uc720\uce58\ub97c \ucd94\uac00\ud558\uc2ed\uc2dc\uc624. \uacf5\uce6d \uce58\uc218\ub9cc\uc744 \uae30\uc900\uc73c\ub85c \ud55c \uacac\uc801\uc740 \uc131\ud615 \ub610\ub294 \ub9c8\uac10 \uacf5\uc815 \ud6c4 \uaddc\uaca9 \ubbf8\ub2ec\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 28Nickel\uc740 \uae30\uc220\uc801\uc73c\ub85c \uc218\uc6a9 \uac00\ub2a5\ud55c \ub300\uc548\uc744 \ub2e8\uc21c\ud788 \uad6c\ud560 \uc218 \uc788\ub294 \uc7ac\uace0\ud488\uacfc \uad6c\ubd84\ud560 \uc218 \uc788\ub3c4\ub85d \ucda9\ubd84\ud788 \uc77c\ucc0d \uc124\uacc4 \uadfc\uac70\ub97c \uc81c\uacf5\ubc1b\uc544\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc81c\ud488 \ud615\ud0dc\ubcc4 \uc81c\uc870 \uad00\ub9ac<\/h2>\n

\ud310\uc7ac \ubc0f \uc808\ub2e8\uc6a9 \ube14\ub7ad\ud06c<\/h3>\n

\ud310\uc7ac \uad6c\ub9e4\uc790\ub294 \ub450\uaed8 \ubd84\ud3ec, \ud3c9\ud0c4\ub3c4, \uc555\uc5f0 \ubc29\ud5a5, \uc808\ub2e8 \ubc30\uce58, \uc5f4\uc601\ud5a5\ubd80, \uadf8\ub9ac\uace0 \uac00\uacf5\uc744 \uc704\ud574 \ub0a8\uaca8\uc9c4 \uc5ec\ubd84\uc758 \ub450\uaed8\ub97c \uac80\ud1a0\ud574\uc57c \ud569\ub2c8\ub2e4. \ub300\ud615 \uac15\ud310\uc758 \uacbd\uc6b0, \uc81c\uac15\uc18c\uc758 \ud3c9\ud0c4\ub3c4 \ubcf4\uace0\uc11c\uac00 \uaddc\uaca9\uc744 \ucda9\uc871\ud558\ub354\ub77c\ub3c4 \uc808\ub2e8 \ubc0f \uc6a9\uc811 \uacfc\uc815\uc5d0\uc11c \uc5f4 \ubcc0\ud615\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \ube14\ub7ad\ud06c\uc5d0 \uc5f4 \ubc88\ud638\ub97c \ud45c\uae30\ud558\uace0, \uc808\ub2e8 \uc9c0\ub3c4\ub97c \uc791\uc131\ud558\uba70, \ud0c4\uc18c\uac15 \uc791\uc5c5\ub300, \ub9ac\ud504\ud305 \uccb4\uc778 \ubc0f \uc624\uc5fc\ub41c \uc2ac\ub9c1\uc73c\ub85c\ubd80\ud130 \ud45c\uba74\uc744 \ubcf4\ud638\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ubd09\uc7ac \ubc0f \uac00\uacf5\uc6a9 \uc18c\uc7ac<\/h3>\n

\ubd09\uc7ac \uad6c\ub9e4\uc790\ub294 \uc9c1\uacbd \uacf5\ucc28, \uc9c1\uc9c4\ub3c4, \uc6d0\ud615\ub3c4, \uc13c\ud130\ub9ac\uc2a4 \uc5f0\ub9c8 \ub610\ub294 \uc120\ubc18 \uac00\uacf5 \ub9c8\uac10, \uc808\ub2e8 \uae38\uc774, \ub2e8\uba74 \uc9c1\uac01\ub3c4 \ubc0f \uac00\uacf5 \uc5ec\uc720\ub97c \uba85\ud655\ud788 \uc815\uc758\ud574\uc57c \ud569\ub2c8\ub2e4. \ub2c8\ucf08 \ud569\uae08\uc740 \ub0a0\uc774 \ubb34\ub518 \uacf5\uad6c\ub97c \uc0ac\uc6a9\ud558\uac70\ub098 \uc808\uc0ad \uae4a\uc774\uac00 \uc595\uc744 \uacbd\uc6b0 \uac00\uacf5 \uacbd\ud654 \ud604\uc0c1\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ub2e8\uc21c\ud788 \uc2a4\ud540\ub4e4 \uc18d\ub3c4\ub97c \ub192\uc774\ub294 \uac83\ubcf4\ub2e4 \uacac\uace0\ud55c \uc124\ube44, \uc591\uc808\uc0ad \ud615\uc0c1, \ucda9\ubd84\ud55c \uce69 \ubd80\ud558 \ubc0f \uace0\ud488\uc9c8 \uc808\uc0ad\uc720 \uc0ac\uc6a9\uc774 \ub354 \uc2e0\ub8b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud669\uc0ad \ud6c4, \ub7f0\uc544\uc6c3\uc744 \uce21\uc815\ud558\uace0 \ucd5c\uc885 \uac80\uc0ac \uc804\uc5d0 \ubd80\ud488\uc774 \uc5f4\uc801\uc73c\ub85c \ud3c9\ud615 \uc0c1\ud0dc\uc5d0 \ub3c4\ub2ec\ud558\ub3c4\ub85d \uae30\ub2e4\ub824\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ud29c\ube0c \ubc0f \ucf54\uc77c<\/h3>\n

\ud29c\ube0c \ubc0f \ucf54\uc77c \uc8fc\ubb38\uc758 \uacbd\uc6b0, \ud0c0\uc6d0\ub3c4, \ud3b8\uc2ec\ub3c4, \ucea0\ubc84, \uc2ac\ub9bf \uac00\uc7a5\uc790\ub9ac, \ucf54\uc77c \ud154\ub808\uc2a4\ucf54\ud551, \ub0b4\uacbd \uccad\uacb0\ub3c4 \ubc0f \ub2e8\ubd80 \ubcf4\ud638\uc5d0 \ub300\ud55c \ucd94\uac00\uc801\uc778 \uad00\ub9ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ud29c\ube0c-\ud29c\ube0c\uc2dc\ud2b8 \uc811\ud569 \ub610\ub294 \uad7d\ud798 \uacf5\uc815\uc758 \uacbd\uc6b0, \uc774\uc74c\ub9e4\ub098 \uacb0 \ubc29\ud5a5\uc5d0 \ub300\ud55c \uc815\ubc00\ud55c \uc81c\uc5b4\uac00 \ud544\uc694\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2a4\ud2b8\ub9bd \uacf5\uae09 \ubc29\uc2dd\uc758 \uc2a4\ud0ec\ud551 \uacf5\uc815\uc758 \uacbd\uc6b0, \ucf54\uc77c \ub9f5, \uc6a9\uc811\uc774 \uc5c6\ub294 \uae38\uc774, \ub450\uaed8 \ub9e4\ud551 \ubc0f \uc2a4\ud2b8\ub9bd \uc7a5\ub825\uc774 \uc0dd\uc0b0 \uc218\uc728\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc81c\ucca0\uc18c\uc5d0\uc11c \uc0dd\uc0b0 \uc77c\uc815\uc744 \uc218\ub9bd\ud558\uae30 \uc804\uc5d0 \uc774\ub7ec\ud55c \uc138\ubd80 \uc0ac\ud56d\uc744 \uba85\ud655\ud788 \uc815\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc811\ud569, \uc5f4\ucc98\ub9ac \ubc0f \ud45c\uba74 \uc804\ucc98\ub9ac<\/h2>\n

Rough machine, stabilize, finish machine, avoid aggressive grinding heat and verify final dimensions after laboratory temperature equalization. Welding, brazing, bolting and plating each create an interface with a different thermal and electrochemical condition. A qualified procedure should control filler selection, shielding, purge, heat input, interpass temperature, joint restraint, cleaning and inspection. When an age-hardening or stabilization treatment is required, document whether it occurs before fabrication, after rough machining, after welding or as a final operation.<\/p>\n

Surface preparation is part of material performance. Remove oils, marker ink, oxide, embedded iron and chloride residue with a method compatible with Invar 36 (Fe-Ni low-expansion alloy). Avoid unqualified pickling or blasting media that can attack the surface, trap contaminants or alter a sealing or fatigue-critical finish. For export shipments, use caps, separators, desiccant and vapor-barrier wrapping when moisture or salt exposure is possible.<\/p>\n

\uace0\uc7a5 \uc720\ud615 \ubc0f \uc608\ubc29 \uc870\uce58<\/h2>\n\n\n\n\n\n\n\n\n\n
\ubc1c\uc0dd \uac00\ub2a5\ud55c \uace0\uc7a5 \uc720\ud615<\/th>\n\uc77c\ubc18\uc801\uc778 \uc6d0\uc778<\/th>\n\uc608\ubc29 \uc870\uce58<\/th>\n<\/tr>\n<\/thead>\n
\uc810\uc2dd \ubd80\uc2dd \ub610\ub294 \ud2c8\uc0c8 \ubd80\uc2dd<\/td>\nChlorides, deposits, stagnant zones or a mismatch between tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements and the selected grade.<\/td>\n\ub18d\ub3c4 \ubc0f \uc628\ub3c4 \ub370\uc774\ud130\ub97c \uac80\ud1a0\ud558\uace0, \ud2c8\uc0c8\ub97c \uc81c\uac70\ud558\uba70, \uc138\ucc99 \ubc0f \uc810\uac80 \uc0ac\ud56d\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uade0\uc5f4 \ub610\ub294 \ub4a4\ud2c0\ub9bc<\/td>\n\uc794\ub958 \uc751\ub825, \uacfc\ub3c4\ud55c \uc5f4 \uc785\ub825, \ub0a0\uce74\ub85c\uc6b4 \ubaa8\uc11c\ub9ac, \uc5f4 \uad6c\ubc30 \ub610\ub294 \ud1b5\uc81c\ub418\uc9c0 \uc54a\uc740 \uc5f4\ucc98\ub9ac.<\/td>\n\uc911\ub300\ud55c \uc218\uc220 \ud6c4\uc5d0\ub294 \uc218\uc220 \ubd80\uc704\ub97c \uc801\uc808\ud788 \ucc98\uce58\ud558\uace0, \ud1b5\uc99d \uc644\ud654 \ub610\ub294 \uace0\uc815 \uc870\uce58\ub97c \ucde8\ud55c \ub4a4, \uc0c1\ud0dc\ub97c \uc810\uac80\ud574\uc57c \ud55c\ub2e4.<\/td>\n<\/tr>\n
\uc870\uae30 \ub9c8\ubaa8 \ub610\ub294 \uac08\ub9c1<\/td>\n\ub192\uc740 \uc811\ucd09 \uc555\ub825, \ubd88\ub7c9\ud55c \ud45c\uba74 \ub9c8\uac10, \uac74\uc2dd \ubbf8\ub044\ub7ec\uc9d0, \uc815\ub82c \ubd88\ub7c9 \ub610\ub294 \ud638\ud658\ub418\uc9c0 \uc54a\ub294 \uc774\uc885 \uae08\uc18d.<\/td>\n\uacbd\ub3c4, \ud45c\uba74 \uac70\uce60\uae30, \uc724\ud65c, \uac04\uadf9, \uaca9\ub9ac \ubc0f \uc2dc\uc6b4\uc804 \uac80\uc0ac\ub97c \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\uc7ac\ub8cc \ud63c\ub3d9<\/td>\n\uc808\ub2e8\ub41c \uc870\uac01, \ucf54\uc77c \ub610\ub294 \ubd09\uc740 \uac00\uacf5 \uacfc\uc815\uc5d0\uc11c \uc6d0\ub798\uc758 \uc5f4 \ud45c\uc2dc\uac00 \uc0ac\ub77c\uc9d1\ub2c8\ub2e4.<\/td>\n\uc808\ub2e8 \ub3c4\uba74, PMI, \uc0c9\uc0c1 \ucf54\ub4dc, \ubd84\ub9ac \ubcf4\uad00 \ubc0f \ubb38\uc11c \ucd94\uc801 \uae30\ub2a5\uc744 \ud65c\uc6a9\ud558\uc2ed\uc2dc\uc624.<\/td>\n<\/tr>\n
\ub204\uc218 \ub610\ub294 \ubc00\ubd09 \ubd88\ub7c9<\/td>\n\ubd80\uc801\uc808\ud55c \ubcbd\uba74 \uae30\uc900, \ud0c0\uc6d0\ud615 \ubcc0\ud615, \ubc84, \uac1c\uc2a4\ud0b7 \ud2c8\uc0c8, \ubd88\ub7c9 \uc6a9\uc811 \ub610\ub294 \ubd88\ucda9\ubd84\ud55c \uc138\ucc99.<\/td>\n\ucd5c\uc18c \ubcbd \ub450\uaed8, \ud615\uc0c1, \ud45c\uba74 \ucc98\ub9ac, \uc2dc\ud5d8 \ubc29\ubc95 \ubc0f \ud569\uaca9 \uae30\uc900\uc744 \uc815\uc758\ud55c\ub2e4.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\uace0\uc7a5\uc774 \ubc1c\uc0dd\ud588\uc744 \ub54c, \uc989\uc2dc \ud569\uae08\uc744 \ubcc0\uacbd\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uba3c\uc800 \uace0\uc7a5\uc758 \uc704\uce58, \ud615\ud0dc, \uce68\uc804\ubb3c \uc131\ubd84, \uc751\ub825 \uc0c1\ud0dc, \uc628\ub3c4 \uc774\ub825 \ubc0f \uc81c\uc870 \uae30\ub85d\uc744 \ud30c\uc545\ud574\uc57c \ud569\ub2c8\ub2e4. \uac1c\uc2a4\ud0b7 \uac00\uc7a5\uc790\ub9ac\uc758 \ud53c\ud2b8, \uc6a9\uc811\ubd80 \uc606\uc758 \uade0\uc5f4 \ub610\ub294 \ub9c8\ubaa8\ub41c \ubca0\uc5b4\ub9c1 \uc800\ub110\uc740 \ub2e8\uc21c\ud55c \uc7ac\uc885 \uc624\ub958\ubcf4\ub2e4\ub294 \uc124\uacc4\ub098 \uacf5\uc815\uc0c1\uc758 \ubb38\uc81c\ub97c \uc2dc\uc0ac\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \uc870\uc0ac \uc2dc\uc5d0\ub294 \uacb0\ud568\uc774 \ubc1c\uc0dd\ud55c \ubd80\ud488\uc744 \uc778\uc99d\uc11c, \ube44\ud30c\uad34 \uac80\uc0ac(NDE) \ubcf4\uace0\uc11c, \uc5f4\ucc98\ub9ac \uae30\ub85d, \uc138\ucc99 \uae30\ub85d \ubc0f \uc2dc\uc6b4\uc804 \ub370\uc774\ud130\uc640 \ube44\uad50\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ud488\uc9c8 \uacc4\ud68d, \uc810\uac80 \uc9c0\uc810 \ubc0f \ubb38\uc11c\ud654<\/h2>\n

\uc2e4\uc6a9\uc801\uc778 \ud488\uc9c8 \uacc4\ud68d\uc740 \uc6d0\uc790\uc7ac \uc785\uace0, \uc131\ud615 \ub610\ub294 \uae30\uacc4 \uac00\uacf5, \uc6a9\uc811, \uc5f4\ucc98\ub9ac, \uc138\ucc99, \ucd5c\uc885 \uce58\uc218 \uac80\uc0ac \ubc0f \ud3ec\uc7a5 \ub4f1 \uac01 \ub2e8\uacc4\uc5d0 \ub300\ud55c \uac80\uc99d \ud56d\ubaa9\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4. \ud654\ud559 \uc131\ubd84 \uac80\ud1a0, \uccab \ubc88\uc9f8 \uc81c\ud488 \uc2b9\uc778, \uc6a9\uc811 \uc808\ucc28 \uc801\uaca9\uc131 \ud3c9\uac00, \ube44\ud30c\uad34 \uac80\uc0ac(NDE) \uad50\uc815, \uc218\uc555 \uc2dc\ud5d8 \ub610\ub294 \ub204\ucd9c \uc2dc\ud5d8, \ucd5c\uc885 \ud45c\uc2dc\ub97c \uc704\ud55c \ubcf4\ub958 \uc9c0\uc810\uc744 \uc124\uc815\ud558\uc2ed\uc2dc\uc624. \uc0dd\uc0b0\uc744 \uc2dc\uc791\ud558\uae30 \uc804\uc5d0 \ub204\uac00 \ud3b8\ucc28\ub97c \uc2b9\uc778\ud560 \uc218 \uc788\ub294\uc9c0, \uadf8\ub9ac\uace0 \ubd80\uc801\ud569 \uc790\uc7ac\ub294 \uc5b4\ub5bb\uac8c \ucc98\ub9ac\ub420\uc9c0 \uacb0\uc815\ud558\uc2ed\uc2dc\uc624.<\/p>\n

\ubb38\uc11c \ud328\ud0a4\uc9c0\ub294 \uac00\ub3c5\uc131\uc774 \ub6f0\uc5b4\ub098\uace0 \ud574\ub2f9 \uc5f4\ucc98\ub9ac\uc5d0 \ud2b9\ud654\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 \ubb38\uc11c \ud328\ud0a4\uc9c0\uc5d0\ub294 MTC, \ud654\ud559 \uc131\ubd84 \ubd84\uc11d, \uae30\uacc4\uc801 \uc2dc\ud5d8 \uacb0\uacfc, \uacbd\ub3c4, \uc785\ub3c4, \ud544\uc694\ud55c \uacbd\uc6b0 \uc5f4\ud33d\ucc3d\uacc4\uc218(CTE) \ub610\ub294 \ubd80\uc2dd \uc2dc\ud5d8 \uacb0\uacfc, \ube44\ud30c\uad34 \uac80\uc0ac(NDE) \ubcf4\uace0\uc11c, \uce58\uc218 \ubcf4\uace0\uc11c, \uc7ac\ub8cc\uc131\ubd84\ubd84\uc11d(PMI), \uc5f4\ucc98\ub9ac \ucc28\ud2b8, \uc6a9\uc811 \ubc30\uce58\ub3c4, \uac80\uc0ac \uc2b9\uc778\uc11c, \ud3ec\uc7a5 \uba85\uc138\uc11c \ubc0f \uc6d0\uc0b0\uc9c0 \uc99d\uba85\uc11c\uac00 \ud3ec\ud568\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uaddc\uc81c \ub300\uc0c1, \ud56d\uacf5\uc6b0\uc8fc \ub610\ub294 \uc6d0\uc790\ub825 \uad00\ub828 \uc791\uc5c5\uc758 \uacbd\uc6b0, \uacf5\uae09\uc6d0 \uc2b9\uc778\uc11c, \ud2b9\uc218 \uacf5\uc815 \uae30\ub85d \ubc0f \ubcf4\uc874 \uae30\uac04\uc744 \ucd94\uac00\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc124\uce58, \uc2dc\uc6b4\uc804 \ubc0f \uc720\uc9c0\ubcf4\uc218<\/h2>\n

\uc62c\ubc14\ub978 \uc7ac\ub8cc\ub97c \uc0ac\uc6a9\ud558\ub354\ub77c\ub3c4 \uc124\uce58 \uacfc\uc815\uc5d0\uc11c \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2c8\ucf08 \ud569\uae08 \ubd80\ud488\uc740 \ud0c4\uc18c\uac15 \uc5f0\ub9c8 \uc791\uc5c5\uacfc \ubd84\ub9ac\ud558\uc5ec \ubcf4\uad00\ud558\uace0, \uae68\ub057\ud55c \ub9ac\ud504\ud305 \uc7a5\ube44\ub97c \uc0ac\uc6a9\ud558\uba70, \uac00\uacf5\uba74\uacfc \ubc00\ubd09\uba74\uc744 \ubcf4\ud638\ud558\uace0, \uc870\ub9bd \uc804\uc5d0 \uc5f4\ucc98\uce58 \ubc88\ud638\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc2dc\uc6b4\uc804 \uc2dc\uc5d0\ub294 \uc5f4\ucda9\uaca9, \uacf5\uae30 \ud3ec\uc9d1, \uce68\uc804\ubb3c \ubc0f \uc5f4\ud33d\ucc3d \ucc28\uc774\ub97c \uc81c\uc5b4\ud560 \uc218 \uc788\ub3c4\ub85d \uc2dc\uc2a4\ud15c\uc758 \uc628\ub3c4\uc640 \uc555\ub825\uc744 \ucda9\ubd84\ud788 \uc11c\uc11c\ud788 \uc0c1\uc2b9\uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4. \uc124\uacc4 \uac12\uc774 \ub2ec\uc131\ub418\uc5c8\ub2e4\uace0 \uac00\uc815\ud558\uae30\ubcf4\ub2e4\ub294 \uc2e4\uc81c \uc2dc\uc6b4\uc804 \uc2dc\uc758 \ud654\ud559\uc801 \uc131\ubd84\uc744 \uae30\ub85d\ud558\uc2ed\uc2dc\uc624.<\/p>\n

\uc720\uc9c0\ubcf4\uc218 \ub2f4\ub2f9\uc790\ub294 \uc124\uacc4 \uac80\ud1a0\ub97c \ud1b5\ud574 \uc608\uce21\ub41c \ubd80\uc704, \uc989 \uc9c0\uc9c0\ub300, \uc6a9\uc811 \ud1a0, \uac1c\uc2a4\ud0b7 \uac00\uc7a5\uc790\ub9ac, \ud29c\ube0c \uc2dc\ud2b8 \uc811\ud569\ubd80, \ub098\uc0ac\uc0b0, \ubca0\uc5b4\ub9c1 \uc800\ub110, \ucf54\ud305 \ud30c\uc190 \ubd80\uc704 \ubc0f \uc720\ub7c9\uc774 \uc801\uc740 \uad6c\uc5ed\uc744 \uc810\uac80\ud574\uc57c \ud569\ub2c8\ub2e4. \uc190\uc0c1 \ubc1c\uc0dd\ub960\uacfc \uadf8 \uacb0\uacfc\ub97c \ubc14\ud0d5\uc73c\ub85c \uc810\uac80 \uc8fc\uae30\ub97c \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. \uacf5\uc815\uc5d0\uc11c \ub18d\ub3c4, \uc628\ub3c4, \uc138\uc815\uc81c \ub610\ub294 \uc720\uc18d\uc774 \ubcc0\uacbd\ub41c \uacbd\uc6b0, \uc7a5\ube44\ub97c \ub2e4\uc2dc \uac00\ub3d9\ud558\uae30 \uc804\uc5d0 \uc7ac\ub8cc \uac80\ud1a0\ub97c \ubc18\ubcf5\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\uc0c1\uc5c5\uc801 \ube44\uad50 \ubc0f \uad6d\uc81c \ubb3c\ub958<\/h2>\n

\ud574\uc678 \uad6c\ub9e4\uc790\ub294 \ub2e8\uc21c\ud788 \uc790\uc7ac \uac00\uaca9\ubfd0\ub9cc \uc544\ub2c8\ub77c \ub354 \ud3ec\uad04\uc801\uc778 \uc694\uc18c\ub97c \ube44\uad50\ud574\uc57c \ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \ud569\uae08, \uaddc\uaca9, \uc0c1\ud0dc, \uce58\uc218, \uc2dc\ud5d8 \ubc94\uc704, \uc808\ub2e8 \uc5ec\uc720, \ud3ec\uc7a5, \uc778\ucf54\ud140\uc988, \ud1b5\ud654 \uae30\uc900, \ub9ac\ub4dc\ud0c0\uc784 \ubc0f \uc11c\ub958 \uc791\uc131 \uc5b8\uc5b4\ub97c \ube44\uad50\ud574\uc57c \ud569\ub2c8\ub2e4. \uacac\uc801\ub41c \uc911\ub7c9\uc774 \uc774\ub860 \uc911\ub7c9\uc778\uc9c0 \uc2e4\uc81c \uc911\ub7c9\uc778\uc9c0, \ub2e8\uae38\uc774 \ud5c8\uc6a9 \uc5ec\ubd80, \ucf54\uc77c \ub05d\ub2e8 \uc811\ud569 \uc5ec\ubd80, \ud29c\ube0c\uac00 \ucd5c\uc18c \ubcbd\ub450\uaed8\uc778\uc9c0 \uacf5\uce6d \ubcbd\ub450\uaed8\uc778\uc9c0, \uc81c3\uc790 \uac80\uc0ac\uac00 \ud3ec\ud568\ub418\uc5c8\ub294\uc9c0 \ub610\ub294 \ubcc4\ub3c4 \ube44\uc6a9\uc778\uc9c0 \ub4f1\uc744 \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ub9ac\ub4dc \ud0c0\uc784\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \uac80\ud1a0, \uc81c\uac15 \uc0dd\uc0b0, \uc5f4\ucc98\ub9ac, \uc2dc\ud5d8, \uc808\ub2e8 \ub610\ub294 \uac00\uacf5 \uc791\uc5c5, \uac80\uc0ac \uc2b9\uc778, \uc218\ucd9c \ud3ec\uc7a5 \ubc0f \uc6b4\uc1a1 \ub2e8\uacc4\ub85c \uad6c\ubd84\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \uc7ac\uace0 \uc0c1\ud488\uc740 \ub0a9\uae30\uac00 \ub354 \ube60\ub97c \uc218 \uc788\uc9c0\ub9cc, \uc5f4\ucc98\ub9ac\uac00 \ub2e4\ub974\uac70\ub098 \ud45c\uba74 \ucc98\ub9ac \uc0c1\ud0dc, \uc2dc\ud5d8 \uae30\uc900\uc774 \ub2e4\ub97c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e0\uaddc \uc6a9\uc735 \uc81c\ud488\uc740 \ucd94\uc801\uc131\uc774 \ub354 \uc6b0\uc218\ud560 \uc218 \uc788\uc73c\ub098, \ucd5c\uc18c \uc8fc\ubb38 \uc218\ub7c9\uc774 \ub354 \ub9ce\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 28Nickel\uc740 \uc774\ub7ec\ud55c \uc635\uc158\uc744 \ubcc4\ub3c4\uc758 \ud56d\ubaa9\uc73c\ub85c \ud45c\uc2dc\ud558\uc5ec \uad6c\ub9e4\uc790\uac00 \ucda9\ubd84\ud55c \uc815\ubcf4\ub97c \ubc14\ud0d5\uc73c\ub85c \uc120\ud0dd\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n

Worked RFQ Scenario for Invar 36 bar precision tooling<\/h2>\n

A clear inquiry would state: commonly UNS K93600\/K93601 by product route; round bar; ASTM F1684 or the project controlled-expansion specification; finished diameter, straightness, roundness, machining allowance, CTE test direction, surface finish and lot size; service in tight dimensional tolerance over a defined temperature window, repeated thermal cycles and low drift requirements; application in composite-tooling pins, optical mounts, metrology standards, precision spacers, calibration fixtures and cryogenic supports; required condition; fabrication route; chemistry, mean CTE over the specified range, tensile and hardness, dimensional inspection, ultrasonic quality and heat traceability; quantity; destination; Incoterm; inspection hold points; and required arrival date. This format gives the supplier enough information to confirm feasibility, identify a real stock alternative and price the correct evidence package.<\/p>\n

An incomplete inquiry such as \u201cplease quote Invar 36 (Fe-Ni low-expansion alloy)\u201d forces the supplier to guess the product form, dimensions, condition, standard, tests and application. That guess creates avoidable revisions, non-comparable quotations and delivery risk. The more technically specific the initial RFQ, the faster 28Nickel can return a useful answer.<\/p>\n

\uc5d4\uc9c0\ub2c8\uc5b4-\uad6c\ub9e4 \ub2f4\ub2f9\uc790 \uc758\uc0ac\uacb0\uc815 \uc694\uc57d<\/h2>\n
    \n
  1. \uc11c\ube44\uc2a4\uc640 \uc8fc\uc694 \uace0\uc7a5 \ubaa8\ub4dc\ub97c \uc815\uc758\ud558\uc2ed\uc2dc\uc624.<\/li>\n
  2. \uad00\ub828 \ud45c\uc900\uc5d0 \ub530\ub77c \ub4f1\uae09 \ubc0f \uc81c\ud488 \ud615\ud0dc\ub97c \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n
  3. \uce58\uc218, \ucd5c\uc18c\uac12, \uc0c1\ud0dc \ubc0f \ud45c\uba74 \uc694\uad6c \uc0ac\ud56d\uc744 \uba85\uc2dc\ud558\uc2ed\uc2dc\uc624.<\/li>\n
  4. \uc131\ud615, \uae30\uacc4 \uac00\uacf5, \uc811\ud569, \uc138\uc815 \ubc0f \uc5f4\ucc98\ub9ac\uc5d0 \ub300\ud55c \uc790\uaca9 \uc694\uac74\uc744 \ucda9\uc871\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n
  5. \uac80\uc0ac, \ucd94\uc801\uc131, \ubcf4\ub958 \uae30\uc900 \ubc0f \ubb38\uc11c \ubcf4\uc874 \uae30\uac04\uc744 \uc124\uc815\ud558\uc2ed\uc2dc\uc624.<\/li>\n
  6. \uae30\uc220\uc801 \ubc0f \uc0c1\uc5c5\uc801 \uae30\uc900\uc744 \ud45c\uc900\ud654\ud558\uc5ec \uacf5\uae09\uc5c5\uccb4\ub97c \ube44\uad50\ud558\uc2ed\uc2dc\uc624.<\/li>\n
  7. \uc124\uce58 \uc804\uc5d0 \uc790\uc7ac\uc758 \uc885\ub958\uc640 \uc0c1\ud0dc\ub97c \ub2e4\uc2dc \ud55c \ubc88 \ud655\uc778\ud558\uc2ed\uc2dc\uc624.<\/li>\n<\/ol>\n

    Final RFQ Checklist for Invar 36 (Fe-Ni low-expansion alloy)<\/h2>\n