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½ºÆ¿ º£À̽º ÇÕ±Ý (STEEL BASED ALLOY)
Å©·Ò¸ô¸® ½ºÆ¿(CHROME MOLYBDENUM STEEL) |
1. Á¤ÀÇ
Å©·Ò ¸ô¸® ÇÕ±Ý(Chrome + Moly Alloy)´Â °í¿Â °í¾Ð¿ëÀ¸·Î °³¹ßµÈ öÀÇ ÇÔ·®ÀÌ
°¡Àå ¸¹Àº ÇձݰÀ¸·Î ÁÖ·Î º¸ÀÏ·¯³ª ¾Ð·Â¿ë±â¿ëÀ¸·Î ¸¹ÀÌ »ç¿ëµÇ°í ÀÖ´Ù.
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2. ÁÖ¿ä ASTM ¹× ASME CODE
A, SA387 |
Pressure Vessel Plates |
A, SA335 |
Smls Ferritic Alloy Steel Pipe for High-Temperature Service |
A, SA691 |
Carbon and Alloy Steel Pipe, Electric Fusion-Welded for High Pressure Service
at High Temperature Service |
A, SA182 |
Forged or Rolled Alloy Steel Flanges, forged Ftgs, Valves and Parts for High
Temperature Service |
A, SA234 |
Pipe Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and Elevated
Temperature |
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3. ÈÇмººÐ
Carbon |
0.15-0.21 |
Mn |
0.30-0.60 |
Phosphorus Max |
0.30-0.35 |
S |
0.30-0.040 |
Silicon |
0.15-1.00 |
Cr |
0.50-10.00 |
Moly |
0.45-0.90 |
Fe |
Balance |
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4. ¿ëµµ
Chrome Moly SteelÀº °í¿Â °í¾Ð¿ëÀ¸·Î ¹ßÀü¼ÒÀÇ Steam Line, ¼®À¯ÈÇаøÀå, Á¤À¯°øÀå µî¿¡
ÁÖ·Î ¸¹ÀÌ »ç¿ëµÈ´Ù.
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5. »ç¾ç (Spec.)
Nominal Chrome
Moly content |
A387 Plate
Grade |
A335 Smls
Pipe Grade |
A691 Welded
Pipe Grade |
A182 Flange
Grade |
A234 FTG
Grade |
Cr |
Mo |
0.50 |
0.50 |
2 |
P2 |
1/2Cr |
F2 |
WP2 |
1.00 |
0.50 |
12 |
P12 |
1Cr. |
F12 |
WP12 |
1.25 |
0.50 |
11 |
P11 |
1-1/4Cr. |
F11 |
WP11 |
2.25 |
1.00 |
22 |
P22 |
2-1/4Cr. |
F22 |
WP22 |
3.00 |
1.00 |
21 |
P22 |
3Cr |
F21 |
- |
5.00 |
0.50 |
5 |
P5 |
- |
F5 |
WP5 |
7.00 |
0.50 |
7 |
P7 |
9Cr |
F7 |
WP7 |
9.00 |
1.00 |
9 |
P9 |
9Cr |
F9 |
WP9 |
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ö ÇÕ±Ý A-286 (Alloy A-286) |
1. Á¤ÀÇ
ÇÕ±ÝA-286 (Alloy A-286)Àº ¼·¾¾704µµ(1300F)±îÁö ¿Âµµ¿¡¼ ³ôÀº °µµ¿Í ÁÁÀº
³»½Ä¼ºÀ» ÇÊ¿ä·ÎÇÏ´Â ¾ÖÇà ¸®ÄÉÀ̼ÇÀ» À§ÇØ ¼³°èµÇ¾ú½À´Ï´Ù. ÀÌ ÇÕ±ÝÀº ³ëÄ¡
ºÎºÐ¿¡¼ ³ôÀº ¿¬¼ºÀ» Á¦°øÇÕ´Ï´Ù. ÇÕ±ÝA-286(Alloy A-286)ÀÇ ³ëÄ¡ ÆÄ¿ °µµ´Â
ºñ±³Àû °í¿Â Ư¼ºÀ» °¡Áø ´Ù¸¥ ¸¹Àº »ó¿ë Çձݺ¸´Ù ¿ì¼öÇÕ´Ï´Ù. ÀÌ ÇÕ±ÝÀÇ
ÀåÁ¡Àº ħ¼ö¿¡ ÀÇÇÑ °È°¡ °¡´ÉÇÏ°í ¿ 󸮿¡ ÀÇÇØ °È°¡ µÉ ¼öÀÖ´Ù´Â °ÍÀÔ´Ï´Ù.
ÀÌ°ÍÀº Àç»ç¿ëÀÌ °¡´ÉÇÒ Á¤µµ·Î ÃÖ´ë °µµÀÇ ³ôÀº ¼öÁØ ±ÕÀÏÇÑ °À縦 ¸¸µì´Ï´Ù.
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2. ÈÇмººÐ
Carbon |
0.08 Max |
Manganese |
2.00 Max |
Silicon |
1.00 Max |
Chromium |
13.50 - 16.00 |
Nickel |
24.00-27.00 |
Molybdenum |
1.00 - 1.75 |
Iron |
49.00 Max |
Titanium |
1.90-2.30 |
Vanadium |
0.10 - 0.50 |
Aluminum |
0.35 Max |
Boron |
0.003-0.010 |
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3. ¿ëµµ(Applications)
ÇÕ±Ý A-286 (Alloy A-286)Àº Á¦Æ® ¿£Áø, ½´ÆÛÂ÷Àú(Superchargers)¿Í °°Àº Åͺó
¹ÙÄû¿Í ³¯°³ µî ´Ù¾çÇÑ °í¿Â ¿ëµµ, ÇÁ·¹ÀÓ, źÇÇ, ¾ÆÇÁÆ®¹ö³Ê(afterburner)ºÎÇ° ¹×
ü°á¿¡ »ç¿ëµÇ¾ú½À´Ï´Ù.
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4. ³»½Ä¼º(Corrosion Resistance)
Á¦Æ® ¿£Áø ¼ºñ½º¿¡¼ ¹ß»ýÇÑ ¿©·¯ ºÐÀ§±â¿¡¼ ÀÌ ÇÕ±ÝÀÇ ³»½Ä¼ºÀº ¼·¾¾704µµ
(1300F)±îÁö ¿ì¼öÇÏ´Ù. ÃÖ´ë ¼·¾¾ 982µµ(1800F)±îÁö ÇÕ±ÝA-286(Alloy A-286)ÀÇ
³»»êȼºÀº ½ºÅ×Àη¹½º 310ÀÇ ±×°Í°ú µ¿ÀÏÇÕ´Ï´Ù.
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5. ¹°¸®Àû Ư¼º(Mechanical Properties)
¹Ðµµ(Density): 0.286(lb/cu in), 7916 (kg/cu m)
¿ëÇؿµµ(Melting range): ¼·¾¾1371/1427µµ(2500/2600F)
ºñ¿(Specific heat): 0.110(Btu/lb-¡ÆF(104/1299 ¡ÆF),0.461(kJ/kg-K(40/704C)
¿ÀüµµÀ²(Thermal conductivity): 104.2[Btu-in/ft(2)-hr-¡ÆF(302¡ÆF)],
15.0 [W/m-k(150 ¡ÆC)]
Btu-in/ft(2)-hr-¡ÆF(112 ¡ÆF)............... 165.0
W/m-k(600 ¡ÆC).............................. 23.8
Magnetic permeability
Solution treated ............................1.010
Solution treated and aged....................1.007
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5. ÀÛ¾÷¼º(Workability)
AA.¿°£ °¡°ø(Hot Working)
ÇÕ±ÝA-286(Alloy A-286)Àº ªÀº ´ã±×´Â ±â°£À» »ç¿ëÇÏ¿© ¾Ð¿¬ 1900/2050 ¡ÆF
(1038/1121 ¡ÆC)¿Âµµ¿¡¼ ¸¸µé¾ú´Ù. ±×°ÍÀº ¿°£ ÀÛ¾÷ ¿À½ºÅ׳ªÀÌƽ(Austentitic)
½ºÅ×Àθ®½º ö°º¸´Ù º¯Çü¿¡ ¾à°£ ´õ °ÇÏ´Ù. ÇÕ±ÝA-286(Alloy A-286)Àº
¼·¾¾927µµ(1700F) ÀÌÇÏ¿¡¼´Â ´ÜÁ¶ÇÏ¸é ¾ÈµÈ´Ù.
BB.³Ã°£ °¡°ø(Cold Working)
°í¿ë ó¸® Á¶°Ç¿¡¼´Â ÇÕ±ÝA-286(Alloy A-286)Àº ½±°Ô ³Ã°£, Àιß, ¼ºÇüÀÌ °¡´ÉÇÏ´Ù.
ÇÔ±ÝA-286(Alloy A-286)Àº °°Àº Á¾·ù 316 ¹× 310°ú °°Àº ½ºÅ×Àθ®½º °º¸´Ù ´Ù¼Ò
½ºÆ¼ÇÁÇÏÁö¸¸, ºü¸£°Ô ´Ü´ÜÇØ Áý´Ï´Ù.
CC.±â°è °¡°ø
ÀϹÝÀûÀ¸·Î °í¿Â ÇÕ±ÝÀº ½ºÅ×Àθ®½º ö°º¸´Ù ±â°è°¡°øÀÌ ´õ ¾î·Æ½À´Ï´Ù. ±×·¯³ª
ÇÕ±Ý A-286(Alloy A-286)°¡ ¼ÓÇϴ ö º£À̽º ÇÕ±Ý ±×·ìÀº, ÀÌ·¯ÇÑ ÇÕ±Ý
718(Alloy 718, Inconel 718)À̳ª ÇÕ±Ý 41(Alloy 41, Rene41)°ú °°Àº ÄÚ¹ßÆ®³ª
º£¾î¸µ µî±ÞÀ¸·Î ´ÏÄÌ ±â¹ÝÀÇ ¼®Ãâ °æÈ µî±Þ Çձݺ¸´Ù ±â°è°¡°øÀÌ ´õ ½±½À´Ï´Ù.
°¡´ÉÇÑ ÃÊ°æ ÀμƮ µµ±¸°¡ ÀϹÝÀûÀ¸·Î »ç¿ëµË´Ï´Ù.
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ö ÇÕ±Ý AM350 (Alloy AM350) |
1. Á¤ÀÇ
ÇÕ±Ý AM350 (Alloy AM350)Àº Å©·Ò ´ÏÄÌ ¸ô¸®ºêµ¥´½ ½ºÆ¿ÇÕ±Ý(½ºÅÙ·¹½º ½ºÆ¿)·Î
¸»Å×»çÀÌÆ®°è·ÎÀÇ ±¸Á¶º¯Çü°ú ¼®Ãâ°æÈ¿¡ ÀÇÇØ °µµ¸¦ ³ôÈú ¼ö ÀÖ´Ù. ¿ëµµ´Â
»ó¿ÂÀ̳ª Áß°£¿Âµµ¿¡¼ ³ôÀº °µµ°¡ ¿ä±¸µÇ´Â ºê·¹À̵å, µð½ºÅ©, ·ÎŸ, »þÇÁÆ®,
±×¸®°í À¯»çÇÑ ºÎÇ°°ú °°Àº °³½ºÅͺóÄÞÇÁ·¹¼Å ºÎÇ°À¸·Î »ç¿ëµÇ¾îÁö°í ÀÖ´Ù.
¿Ã³¸®¿¡ µû¶ó, ÇÕ±Ý AM350(Alloy AM350)Àº ¼ºÇü¼ºÀÌ ÁÁÀº ¿À½ºÅ׳ªÀÌÆ®°è
±¸Á¶¸¦ °®°í Àְųª ȤÀº ¸¶¸£ÅÙ»çÀÌÆ®°è °Ã¶°ú °ßÁÙ ¼ö ÀÖ´Â °µµ¸¦ °¡Áø
¸¶¸£Å×»çÀÌƽ ±¸Á¶¸¦ °®°í ÀÕ´Ù. ÀÌ ¾Ë·ÎÀÌ´Â ¾à 5-10%ÀÇ Æä¶óÀÌÆ®(ferrite)¸¦
Æ÷ÇÔÇÏ°í ÀÖ´Ù. ³»ºÎ½Ä¼ºÀº Å©·Ò´ÏÄÌ ¿À½ºÅÙ³ªÀÌÆ® ½ºÅÙ·¹½º¿¡ ±ÙÁ¢ÇÑ´Ù.
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2. ÈÇмººÐ
Carbon |
0.07 - 0.11 |
Manganese |
0.50 - 1.25 |
Silicon |
0.50 Max |
Phosphorus |
0.040 Max |
Sulfur |
0.030 Max |
Chromium |
16.00 - 17.00 |
Nickel |
4.00-5.00 |
Molybdenum |
2.50 - 3.25 |
Nitrogen |
0.07 - 0.13 |
Iron |
72.69 Max |
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3. ³»ºÎ½Ä¼º(Corrosion Resistance)
ÇÕ±Ý AM350(Alloy AM350)Àº ´Ù¸¥ ²cĪ(ħ¼ö)°æÈ °¡´ÉÇÑ ¸¶ÅÙÀÚÀÌÆ®°è ½ºÅ×Àη¹½º
ö°º¸´Ù ¿ì¼öÇÑ ³»½Ä¼ºÀ» °®°í ÀÖ½À´Ï´Ù. ±×°ÍÀº ÀÏ¹Ý ´ë±âÁ¶°Ç°ú ´Ù¾çÇÑ ¿ÂÈÇÑ
ÈÇРȯ°æ¿¡¼ ÁÁÀº ³»½Ä¼ºÀ» º¸ÀÌ°í ÀÖ´Ù. ÀÌÁß Aged³ª Equalized »óÅ¿¡¼
ÀçÁúÀº Å©·Ò CarbidesÀÇ ¼®Ã⶧¹®¿¡ ºÎ½Ä¿¡ ¿µÇâÀ» ¹Þ±â ½±½À´Ï´Ù.ÇÕ±ÝÀº ´ÙÀ½
´Ü¶ô¿¡¼¿Í °°ÀÌ ¼ºê Á¦·Î ³Ã°¢À» ä¿ëÇÏ´Â ¿ä¹ýÀ¸·Î °æÈ µÇ¾úÀ» ¶§, ±×°ÍÀº
ÀÔÀÚ°£ °ø°ÝÀÇ ´ë»óÀ̵ÇÁö ¾Ê½À´Ï´Ù.
´ÙÀ½°ú °°ÀÌ ÇÕ±Ý AM350ÀÇ ÀÌ»óÀû ÀÀ·Â ºÎ½Ä ³»¼ºÀ» À§ÇÑ ¿Ã³¸®¹ý:
¼·¾¾1066/1010µµ(1850/1950F)±îÁö °¡¿, »ó¿Â±îÁö ºü¸£°Ô ½ÄÈù´Ù, ¼·¾¾ -73µµ(-100F)
3½Ã°£ Äð¸µÈÄ ¼·¾¾927-954µµ(1700F-1750F)Àç°¡¿, ¾à1ÀÎÄ¡ ¶Ñ²²´ç 90ºÐ°£
(2ÀÎÄ¡ 180ºÐ) ¹æÄ¡ÈÄ »ó¿ÂÀ¸·Î ½ÄÈù´Ù. ¿µÇÏÀÇ 3 ½Ã°£ ±Þ¼Ó Äð¸µÇÑ´Ù.
ÀÌ»óÀûÀÎ ³»ºÎ½ÄÀ» À§ÇØ Ç¥¸éÀº ½ºÄÉÀÏÀÌ ¾ø¾î¾ßÇÏ°í ¸¶°¨ÈÄÀÇ ÆÄÆ®´Â
PassivatedÇØ¾ß ÇÑ´Ù
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4. ¹°¼ºÄ¡(Physical Properties)
Specific gravity:
annealed..................................... 7.92
sub-zero cooled,
tempered 850 ¡ÆF(454 ¡ÆC) ................... 7.81
Density: annealed
lb/cubic in ..............................0.286
kg/cubic m .............................. 7810
Melting Range
¡ÆF.................................. 2500/2550
¡ÆC ..................................1371/1399
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5. ¿Ã³¸®(Heat Treatment)
¾Æ´Ò¸µ: ¼·¾¾ 1850/1950 ¡ÆF(1010/1066¡ÆC)±îÁö È÷ÆÃ, »ó¿Â±îÁö ±Þ°ø³Ã.
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6. °æÈ(Hardening)
ÇÕ±Ý AM350 (Alloy AM350)´Â ¼ºêÁ¦·Î Äð¸µ, ÅÛÇÁ¸µ, ȤÀº ´õºí¿¡ÀÌ¡
¹æ¹ý¿¡ ÀÇÇØ °æµµ¸¦ ³ôÈú ¼ö ÀÖ´Ù. ¼ºêÁ¦·Î Ä𸵰ú ÅÛÇÁ¸µÀ¸·Î ´õºí¿¡ÀÌ¡
º¸´Ùµµ ´õ ³ôÀº °æµµ¸¦ ³¾ ¼ö ÀÖ´Ù. "ÄÁµð¼Ç´×" ¼·¾¾ 932µµ(1710F)+/-25¿¡¼
"ÄÁµð¼Ç´×"ÀÌ SCTó¸® Àü¿¡ ÇÊ¿äÇÏ´Ù,ÄÁµð¼Ç´×ÀÌ ¿ä±¸µÇÁö ¾ÊÁö¸¸
´õºí¿¡ÀÌ¡ Àü¿¡´Â ±ÇÀåµÇ°í ÀÖ´Ù. ¼·¾¾ 1010µµ-1066µµ(1850F-1950F)¿¡¼
¾È´Ò¸µ´ÙÀ½¿¡ ÇÕ±Ý AM350Àº °æÈó¸®Àü¿¡ Àû¾îµµ 3½Ã°£µ¿¾È -73µµ(-100F)
±îÁö ³Ã°¢µÇ¾î¾ßÇÑ´Ù.
¼ºêÁ¦·Î Äð¸µ(Sub-zero cooling): 1ÀÎÄ¡ ¶Ñ²²´ç 90ºÐ µ¿¾È ¼·¾¾935µµ
(1710F)¿¡¼ ÄÁµð¼Ç´×ÈÄ ÇÕ±Ý AM350Àº -100F¿¡¼ ÃÖ¼Ò3½Ã°£ µ¿¾È ¸Ó¹®ÈÄ
¼·¾¾454µµ³ª ȤÀº538µµ(850F-1000F)¿¡¼ ÅÛÇÁ¸µµÇ¾î¾ß ÇÑ´Ù. 850F¿¡¼
ÅÛÇÁ¸µÇÏ´Â °æ¿ì °¡Àå ³ôÀº °µµ¿Í °æµµ¸¦ ¾òÀ» ¼ö ÀÖ°í 1000F¿¡¼´Â °µµ¿Í
³»½ºÆ®·¹½ººÎ½Ä Ư¼ºÀ» ³ôÀÏ ¼ö ÀÖ´Ù.
´õºí¿¡Â¡(Double age)
¼·¾¾ 732µµ/760µµ(1350F/1400F)dptj 3½Ã°£¸Ó¹°°í »ó¿Â±îÁö °ø±âÁß¿¡ ³Ã°¢ÇÑ´Ù.
2Â÷·Î ¼·¾¾440µµ/468µµ(825F/875F)¿¡¼ 2-3½Ã°£ ȦµåÇÏ°í »ó¿Â±îÁö °ø³ÃÇÑ´Ù.
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7. ÀÛ¾÷¼º(Workability)
¿°£ÀÛ¾÷(Hot working): ÇÕ±ÝAM350Àº ¿°£ ÀÛ¾÷ÀÌ ½±´Ù. ÃÖ´ë ¼·¾¾1177µµ
(2150F)·Î ºÎÅÍ ¿°£ ÀÛ¾÷ÀÌ °¡´ÉÇÏ´Ù. À̿µµ¿¡¼´Â Æä¶óÀÌÆ®(ferrite)·®À»
Áõ°¡½ÃŲ´Ù. ÀÛ¾÷ ³¡³¿ ¿Âµµ´Â ´ÙÀ½¿Ã³¸®¿¡¼ ÀÔÀÚÀÇ ÄÚ¿À½¼´×(Coarsening)À»
ÇÇÇϱâ À§ÇØ ±×¸®°í Ä«¹ÙÀÌÆ®ÀÇ µ¿½Ã¼®ÃâÀ» ÃËÁøÇϵµ·Ï ¼·¾¾927/982µµ
(1700F/1800F)±îÁö¸¸ ÇàÇØÁ®¾ß ÇÑ´Ù
³Ã°£ÀÛ¾÷(Cold working):¾Æ´Òµå »óÅ¿¡¼ ÇÕ±Ý AM350 ±Ùº»ÀûÀ¸·Î ¿À½ºÅ×
³ªÀÌÆ®°èÀ̸ç, AISI 300 ½Ã¸®Áî ½ºÅ×Àη¹½º ö°ÀÇ ºñ½ÁÇÑ Æ¯Â¡À» Çü¼ºÇÑ´Ù.
±×°ÍÀº °æÈ¿Í ³Ã°£ ¼ºÇüÀº º¯ÇüÀÇ Å©±â¿¡ ºñ·ÊÇÏ¿© ¸¶¸£ÅÙ»çÀÌÆ® Çü¼ºÀ»
ÀÏÀ¸Å³ °ÍÀÌ´Ù. ¸¸¾à¿¡ µðÆû¸ÞÀ̼ÇÀÌ ½ÉÇϰųª ¿ë·®ÀÌ Á¦ÇÑÀûÀ̶ó¸é ¼·¾¾149µµ
(300F)³ª ±×ÀÌ»ó±îÁö ÇÕ±ÝAM350À» °¡¿Çϸé ÀÛ¾÷ °æȸ¦ ÃÖ¼ÒÈ ÇÒ °ÍÀÌ´Ù.
ÀÛ¾÷°æÈµÈ »óÅ¿¡¼´Â ÇÕ±ÝAM350Àº Á¦ÇÑÀûÀÎ Æû¹ÖÀ̳ª Á÷¼±È ÀÛ¾÷¿¡¼
ÃæºÐÇÑ ¿¬¼ºÀ» °¡Áú °ÍÀÌ´Ù.
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8. ±â°è°¡°ø(Machining)
È¿°úÀûÀÎ ÇÕ±Ý AM350À» °¡°øÇÏ´Â °ÍÀº °°Àº µüµüÇÑ µµ±¸ ¹× ÀÛ¾÷ , Suports,
´À¸° ¼Óµµ, ±àÁ¤ÀûÀÎ »óó, ÁÖ°Å ¶Ç´Â À¯¾àÀÇ ºÎÀç, ±×¸®°í ÀûÀýÇÑ ³Ã°¢¼ö µî
´Ù¸¥ ½ºÅ×Àθ®½º ö°¿¡ »ç¿ëµÈ °Í°ú °°Àº Pratices¸¦ ÇÊ¿ä·ÎÇÕ´Ï´Ù.
¾Æ´Òµå»óÅ¿¡¼, ÇÕ±ÝAM350Àº ºÎµå·´°í Á©¸®ÇÏ¸ç ³ôÀº ÀÛ¾÷ °æÈ ¼Óµµ¸¦
°¡Áö°í ÀÖ½À´Ï´Ù.¾Æ´Òµå »óÅ·Π°¡°ø ÇÕ±Ý AM350ÀÇ ±â°è°¡°øÀº °á°úÀûÀ¸·Î
±ÇÀåµÇÁö ¾Ê½À´Ï´Ù.
ÃÖ°íÀÇ ±â°è °¡°ø¼ºÀº ´ÏÄ÷¶óÀÌÁîµå(Equalized)°ú °úÅÛÇÁµå(Overtempered)
»óÅ¿¡¼ ¾ò¾îÁø´Ù. °è¼ÓµÇ´Â °æÈ Ã³¸®Áß¿¡ Àû´çÇÑ Çã¿ëÄ¡°¡ ÁÖ¾îÁöÁö
¾Ê´Â´Ù¸é ¸¶°¨ÀÛ¾÷ÀÌ Àß ÀÌ·ç¾î Áú °ÍÀÌ´Ù. ¸¸¾à ÃÊÁ¤¹Ðµµ°¡ ¿ä±¸µÈ´Ù¸é
¸¶°¨ ±â°è°¡°øÀº °æÈµÈ »óÅ¿¡¼ ÁøÇàÇØ¾ß ÇÑ´Ù.
´ÙÀ½Àº Equalized ¹× Overtempered ÇÕ±Ý AM350¿¡ ´ëÇÑ ÀϹÝÀûÀÎ Çǵå¿Í ¼ÓµµÀÔ´Ï´Ù.
°í¼ÓµµÅø(High Speed Tool)
Ä«¹ÙÀÌÆ® ÅøÀÌ »ç¿ëµÉ ¶§ ºÐ´ç ¸é½ºÇǵå ÇÇÆ®(sfpm)´Â °í¼Óµµ Åøº¸´Ù
2¹è³»Áö 3¹è·Î Áõ°¡µÈ´Ù.Çǵå´Â 50%¿Í 100%»çÀÌ·Î Áõ°¡µÉ ¼ö ÀÖ´Ù. ¸ðµç
±Ý¼Ó Á¦°Å ÀÛµ¿¿¡ ´ëÇÑ ¼öÄ¡´Â Æò±ÕÄ¡ ÀÌ´Ù. ¾î¶²ÀÛ¾÷¿¡¼´Â ±× ºÎÇ°ÀÇ
¼ºÁú¿¡ µû¶ó ½ºÇǵ峪 ÇÇ´õÀÇ Á¶Á¤ÀÌ ÇÊ¿äÇÏ´Ù. °¢ÀÛ¾÷Àº ÀÌ»óÀûÀÎ ÅøÀÇ
¼ö¸í°ú Á¶ÈÇؼ °¡Àå ÁÁÀº »ý»ê °á°ú¸¦ À§ÇØ °³¹ßµÇ¾î ¿Ô´Ù. ½ºÇǵå¿Í
Çǵå´Â ÀûÀº ½ºÅÜ¿¡¼ Áõ°¡µÇ°Å³ª Ãà¼ÒµÇ¾î¾ß ÇÑ´Ù.
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9. ¿ëÁ¢(Welding)
ÇÕ±Ý AM350´Â ¸¸Á·½º·´°Ô Â÷ÆóµÈ À¶ÇÕ ÀúÇ× ¿ëÁ¢ °øÁ¤¿¡¼ ¿ëÁ¢ÇÏ½Ç ¼ö
ÀÖ½À´Ï´Ù. »ê¼Ò¾Æ¼¼Ä¥·» ¿ëÁ¢ ±ÇÀåµÇÁö ¾ÊÀ¸¸ç ¿ëÁ¢¿¡¼ sincecarbon
ÇȾ÷ÀÌ ¹ß»ýÇÒ ¼ö ÀÖ½À´Ï´Ù.
ÇÊ·¯ ±Ý¼ÓÀÌ ÇÊ¿äÇÑ °æ¿ì, °¡°ø ºÐ¼®Àº ±âº» ±Ý¼Ó µî °ÅÀÇ µ¿ÀÏÇÑ ¼Ó¼º
¿ëÁ¢À» Á¦°øÇÏ´Â µ¥ »ç¿ëÇØ¾ß ÇÕ´Ï´Ù. ¿ëÁ¢ ÀÌÀ½À» ¼³°èÇÒ ¶§¿¡´Â
»þÇÁ(sharp)ÄÚ³Ê, ½º·¹µå ¹× ºÎºÐ - ħÅõ ¿ëÁ¢°ú °°Àº ½ºÆ®·¹½º
ÁýÁß(concentrators)À» ÇÇÇϴµ¥ ÁÖÀÇ°¡ ÁýÁß µÇ¾î¾ß ÇÕ´Ï´Ù.
³ôÀº ¿ëÁ¢ °µµ°¡ ÇÊ¿äÇÏÁö ¾Ê´Â °æ¿ì, °°Àº E/ER308 °°Àº Ç¥ÁØ
¿À½ºÅ׳ªÀÌÆ®°è ½ºÅ×Àη¹½º ÇÊ·¯°¡ °í·ÁµÇ¾î¾ßÇÕ´Ï´Ù.
¿¹¿Àº ±Õ¿À» ¹æÁöÇϱâ À§ÇØ ÇÊ¿äÇÏÁö ¾Ê½À´Ï´Ù. °¡´ÉÇϸé ÀÌ»óÀûÀÎ
°µµ,¿¬¼º,±×¸®°í ³»ºÎ½Ä¼ºÀÇ ÄÞºñ³×À̼ÇÀ» À§Çؼ ¿ëÁ¢ÈÄ ¾Æ´Òµå µÇ¾î¾ß
ÇÕ´Ï´Ù.ÀÌ ÇÕ±ÝÀº ÃÊÀú¿Â ³Ã°¢°ú ÅÛÇÁ¸µ¿¡ ÀÇÇÑ °æµµ¸¦ ¿Ã¸®±âÀü¿¡
¼·¾¾932µµ(1710F)¿¡¼ ¿Ã³¸® µÇ¾î¾ß ÇÕ´Ï´Ù.
|
ö ´ÏÄÌ ÇÕ±Ý 901 (Alloy 901,Incoloy 901) |
1. Á¤ÀÇ
°í¿ëÈ °µµ¸¦ À§ÇÑ ¸ô¸®ºêµ¥´½,¼®Ãâ °æȸ¦ À§ÇÑ Æ¼Å¸´½ ¾Ë·ç¹Ì´½À»
ÇÔÀ¯ÇÑ ´ÏÄÌ - ö - Å©·Ò ÇÕ±ÝÀÔ´Ï´Ù. ÀÌ ÇÕ±ÝÀº ¼·¾¾¾à 600µµ(1110F)
¿Âµµ¿¡¼ Ç׺¹·Â°ú Å©¸³ ÀúÇ×·ÂÀÌ ¸Å¿ì ³ô´Ù. ½ÇÁúÀûÀΠöºÐ ÇÔ·®Àº
°í°µµ¿Í ¿ì¼öÇÑ ´ÜÁ¶ Ư¼ºÀ» °®°ÔÇÑ´Ù. ÁÖ·Î °¡½ºÅͺóÀÇ µð½ºÅ©³ª
»þÇÁÆ®¿¡ »ç¿ëµÇ°í ÀÖÀ¸¸ç Ç¥ÁØ Á¦Ç°ÀÇ Å¸ÀÔÀº ºÀÀçÀÌ´Ù.
|
2. ÈÇмººÐ
Ni+Co |
40.0 - 45.0 |
Chromium |
11.0 - 14.0 |
Silicon |
0.40 Max |
Sulfur |
0.03 Max |
Cobalt |
1.00 Max |
Iron |
Remainder |
Aluminum |
0.35 Max |
Carbon |
0.10 Max |
Manganese |
0.50 Max |
Molybdenum |
5.00 - 6.50 |
Titanium |
2.80 - 3.10 |
Copper |
0.50 Max |
|
3. ³»½Ä¼º(Corrosion Resistance)
ÇÕ±Ý 901´Â ÀϹÝÀûÀ¸·Î Á¦Æ® ¿£Áø °¡µ¿¿¡¼ ¾ÆÁÖ ÁÁÀº ³»½Ä¼ºÀ» ³ªÅ¸³»°í
ÀÖ´Ù. 309³ª 316 ½ºÅÙ·¹½º ½ºÆ¿°ú °°Àº Çձݺ¸´Ùµµ ¿À¹°(»êȹ°¹ß°ß)¿¡
°ßµð´Â Á¤µµ°¡ Á¶±Ý ³·´Ù.
|
4. ¿Ã³¸®(Heat Treatment)
¼·¾¾1080/1107(1975/2025¿¡¼ °í¿ëÈ, 2½Ã°£ ü·ù, ±×¸®°í ¼ö³Ã.
-¾ÈÀüȿó¸®(Stabiliztion Treatment):¼·¾¾760/802µµ(1400/1475F)°¡¿,
2-4½Ã°£ À¯Áö, ±×¸®°í °ø³Ã.
-¼®Ãâ°æÈó¸®(Precipitation Hardening Treatment):¼·¾¾704/746µµ
(1300/1386F)°¡¿, 24½Ã°£ À¯Áö, °ø³Ã.
|
5. ÀÛ¾÷¼º(Workability)
¿°£ÀÛ¾÷: ÇÕ±Ý 901(Alloy 901)Àº ¼·¾¾ 1121µµ-1010µµ(2050F-1850F) »çÀÌ¿¡¼
´ÜÁ¶µÈ´Ù. °¡º¿î ´ÜÁ¶´Â ¼·¾¾871µµ(1600F)°¡´ÉÇϳª ±×¾Æ·¡´Â ¾ÈµÈ´Ù.
ºü¸¥ ÀÛ¾÷¿¡¼´Â ¼·¾¾1121(2050F)¸¦ ³ÑÁö ¾Ê¾Æ¾ß ÇÑ´Ù. ºô·¿Æ®°¡ °¡¿µÈ
³ë¿¡ ³Ö¾î¼ ¼®Ãâ°æÈ ¹üÀ§±îÁö ºü¸£°Ô °¡¿ÇÏ¿©¾ß ÇÑ´Ù.
¿ëÁ¢¼º: ÇÕ±Ý 901(Alloy 901)¼ÒÀç´Â ºÒÈ°¼º °¡½º ¾ÆÅ© ¿ëÁ¢ ¹æ¹ýÀ¸·Î ¿ëÁ¢ÇÒ
¼ö ÀÖ½À´Ï´Ù. ÇÕ±Ý901Àº ¿ëÁ¢Çϱ⠾î·Æ½À´Ï´Ù. ¸ðµç ¿ëÁ¢Àº °í¿ëÈó¸®ÈÄ¿¡
ÇؾßÇÑ´Ù. ³Ã°£ ÀÛ¾÷µÈ ºÎÇ°Àº ¿ëÁ¢Àü¿¡ Àç °í¿ëÈó¸® ÇؾßÇÑ´Ù. Àç °í¿ëÈ
󸮴 ¾ÈÀüÈ¿Í ³ëÈó¸®Àü¿¡ ¿ëÁ¢ÈÄ°¡ °¡Àå ÁÁ´Ù.
|
6. ÀÛ¾÷¼º(Workability)
AA.¿°£ °¡°ø(Hot Working)
ÇÕ±ÝA-286(Alloy A-286)Àº ªÀº ´ã±×´Â ±â°£À» »ç¿ëÇÏ¿© ¾Ð¿¬ 1900/2050 ¡ÆF
(1038/1121 ¡ÆC)¿Âµµ¿¡¼ ¸¸µé¾ú´Ù. ±×°ÍÀº ¿°£ ÀÛ¾÷ ¿À½ºÅ׳ªÀÌƽ(Austentitic)
½ºÅ×Àθ®½º ö°º¸´Ù º¯Çü¿¡ ¾à°£ ´õ °ÇÏ´Ù. ÇÕ±ÝA-286(Alloy A-286)Àº
¼·¾¾927µµ(1700F) ÀÌÇÏ¿¡¼´Â ´ÜÁ¶ÇÏ¸é ¾ÈµÈ´Ù.
BB.³Ã°£ °¡°ø(Cold Working)
°í¿ë ó¸® Á¶°Ç¿¡¼´Â ÇÕ±ÝA-286(Alloy A-286)Àº ½±°Ô ³Ã°£, Àιß, ¼ºÇüÀÌ °¡´ÉÇÏ´Ù.
ÇÔ±ÝA-286(Alloy A-286)Àº °°Àº Á¾·ù 316 ¹× 310°ú °°Àº ½ºÅ×Àθ®½º °º¸´Ù ´Ù¼Ò
½ºÆ¼ÇÁÇÏÁö¸¸, ºü¸£°Ô ´Ü´ÜÇØ Áý´Ï´Ù.
CC.±â°è °¡°ø
ÀϹÝÀûÀ¸·Î °í¿Â ÇÕ±ÝÀº ½ºÅ×Àθ®½º ö°º¸´Ù ±â°è°¡°øÀÌ ´õ ¾î·Æ½À´Ï´Ù. ±×·¯³ª
ÇÕ±Ý A-286(Alloy A-286)°¡ ¼ÓÇϴ ö º£À̽º ÇÕ±Ý ±×·ìÀº, ÀÌ·¯ÇÑ ÇÕ±Ý
718(Alloy 718, Inconel 718)À̳ª ÇÕ±Ý 41(Alloy 41, Rene41)°ú °°Àº ÄÚ¹ßÆ®³ª
º£¾î¸µ µî±ÞÀ¸·Î ´ÏÄÌ ±â¹ÝÀÇ ¼®Ãâ °æÈ µî±Þ Çձݺ¸´Ù ±â°è°¡°øÀÌ ´õ ½±½À´Ï´Ù.
°¡´ÉÇÑ ÃÊ°æ ÀμƮ µµ±¸°¡ ÀϹÝÀûÀ¸·Î »ç¿ëµË´Ï´Ù.
|
ö ´ÏÄÌ ÇÕ±Ý Àι٠36 (Invar 36) |
1. Á¤ÀÇ
Àι٠36( Invar 36)ÇÕ±ÝÀº ¼·¾¾204µµ(400F) ±îÁöÀÇ ¿Âµµ¿¡¼ Ä«º»½ºÆ¿ÀÇ
¾à1/10 ¿ ÆØâ·üÀ» °¡Áø 36%´ÏÄÌ ¾ÆÀ̾ð ÇÕ±ÝÀÌ´Ù.
|
2. ÈÇмººÐ
Carbon |
0.15 Max |
Nickel |
36.0 Nominal |
Phosphorus |
0.006 Max |
Iron |
Balance |
Silicon |
0.400 Max |
Manganese |
0.60 Max |
Sulfur |
0.004 Max |
Chromium |
0.025 Max |
Cobalt |
0.50 Max |
|
|
|
3. ¿ëµµ(Applications)
Àι٠36 ÇÕ±ÝÀº ¿Âµµ º¯È¿¡ ÀÇÇÑ Ä¡¼ö º¯È°¡ Àû¾î¾ßÇÏ´Â ¶óµð¿À, ÀüÀÚ±â±â,
Ç×°ø±â Á¦¾î, ±¤ÇÐ ¹× ·¹ÀÌÀú ½Ã½ºÅÛ µî¿¡¼ »ç¿ëµÇ°í ÀÖ´Ù.
Àι٠36 ÇÕ±ÝÀº ¹ÙÀ̸ÞÅ»¸¯ Àúµ¿¿ÂµµÁ¶ÀýÀåÄ¡(bimetallic thermostats) ¹×
¿Âµµ Á¶Àý±â¸¦À§ÇÑ ¸·´ë¿Í Æ©ºê ¾î¼Àºí¸®¿¡¼¿Í °°ÀÌ ¿Âµµ º¯È¿¡ µû¶ó
¿òÁ÷ÀÓÀÌ ¿ä±¸µÇ´Â ³ôÀº ÆØâ°è¼öÀÇ Çձݰú °ü·ÃÇÑ °÷¿¡¼ ¿ª½Ã »ç¿ëµÇ¾îÁö°í ÀÖ´Ù
|
4. ¹°¼ºµ¥ÀÌÅÍ(Physical Properties)
Specific gravity ................ 8.05
Density
lb/cu in ......................... 0.291
kg/cu m ......................... 8055
Thermal conductivity
Btu-in/ft©÷/hr/¡ÆF ................ 72.6
W/m © K .......................... 10.5
Electrical resistivity
ohm-cir mil/ft ................... 495
microhm-mm ........... ........ 820
Temperature coefficient of electrical
resistivity
per ¡ÆF (70/212¡ÆF) ............. 0.0006
per ¡ÆC (21/100¡ÆC) ............ 0.0011
|
5. ÀÛ¾÷¼º(Workability)
-´ÜÁ¶(Forging):
´ÜÁ¶¿¡¼ °üÂûÇÏ´Â ÁÖ¿ä¿øÄ¢Àº ½Å¼ÓÇÏ°Ô °¡¿ÇÏ°í ³ë³»¿¡¼ ¼ÒÅ·(Soaking)ÇÏÁö
¾Êµµ·ÏÇÏ´Â °ÍÀÔ´Ï´Ù. ±ä ¼ÒÅ·(Soaking)Àº ³ëÀÇ ºÐÀ§±â ¶Ç´Â »êȹ°ÀÇ Ä§Åõ·ÎºÎÅÍ
À¯È²ÀÇ Èí¼ö·Î ÀÎÇØ ÈìÁý Ç¥¸éÀ» ÃÊ·¡ÇÒ ¼ö ÀÖ½À´Ï´Ù. ¼·¾¾1177/1093µµ
(2,150/2,000F)ÀÇ ´ÜÁ¶ ¿Âµµ°¡ ÁÁ½À´Ï´Ù
-³Ã°¢¼ö(Coolant):
±×°ÍÀº ¿ÃàÀû,ÁÖ¿ä ¿öÆäÀÌÁö(Warpage)¿øÀÎÀ» Á¦¾îÇÏ´Â °ÍÀÌ Áß¿äÇÕ´Ï´Ù. Á¦¾ÈµÈ
³Ã°¢¼ö ¸ÚÁø µµ±¸°¡ µÉ °ÍÀÔ´Ï´Ù. ³Ã°¢ µµ±¸´Â Àý»è ¿µ¿ª¿¡ ¸¶Âû°ú Àý»è °ø±¸¿Í
Á÷Àå »çÀÌÀÇ ¸¶Âû¿¡ ÀÇÇØ »ý¼ºµÈ ¿À» Á¦°ÅÇÏ´Â ³Ã¸Å¸¦ ÁÙÀ̱â À§ÇØ Áö¹æ»ê
¿¡½ºÅ׸£°¡ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù.
-µµ±¸(Tooling):
Vanadium Alloys Company»çÀÇ ¹Ù½ºÄÚ ½´ÆÛ¸²°ú °°Àº T-15 ÇÕ±Ý,"Vanadium Alloys
Company"»ç¿¡¼ »ý»êµÈ Van Cut Type 2¿Í °°Àº M-3 Type 2 ±×¸®°í "Braeburn»çÀÇ
Congo µîÀÌ ÀÖ´Ù. ÃÊ°æ °ø±¸·Î´Â, Kennemetal°¡ Á¦Á¶ÇÏ´Â K-6, ÈÄ¹Ì ½ºÅиµ¿¡¼
Á¦Á¶ÇÑ Firthie HA, ¶Ç´Â # 370 Carboloy°¡ »ç¿ëµÉ ¼öÀÖ´Ù, ¶Ç´Â Kennemetal°¡
Á¦Á¶ K2S, ¶Ç´Â ½ºÅиµ»çÀÇ Firthie T-04°¡ Àß »ç¿ëµÇ°í ÀÖ´Ù. °¡Àå Áß¿äÇÑ ÇÑ
°¡Áö´Â ¸ðµç ±êÅÐÀ̳ª ö»ç °¡ÀåÀÚ¸®°¡ °ø±¸¿¡¼ Á¦°ÅµÇ¾î¾ßÇÑ´Ù´Â °ÍÀÔ´Ï´Ù.
±×µéÀº ¹Ýº¹ °Ë»ç¸¦ ÅëÇÏ¿© ÃÖ»óÀÇ »óÅ·Πº¸°üÇؾßÇÕ´Ï´Ù.
-Àý»è(Turning):
ö° Àý´Ü µµ±¸¸¦ »ç¿ëÇÏ´Â °æ¿ì, ¸®º¼·ç¼Ç(Revolution)´ç "0.012·Î"¾à 0.010ÀÇ
Çǵ带 ½ÃµµÇϸé 35/FPM¼Óµµ¿¡ µµ´ÞÇÒ °ÍÀÌ´Ù. Àý»è °ø±¸ÀÇ Àý»èÁß ¹æ¹ýÀº
´ÙÀ½°ú °°½À´Ï´Ù.
End cutting edge angle -Approximately 7¡Æ
Nose radius -Approximately .005"
Side cutting edge angle -Approximately 15¡Æ
Back rake -Approximately 8¡Æ
Side rake -Approximately 8¡Æ
°í¼ÓµµÅøÀÌ ÃÊ°æ °ø±¸º¸´Ù ÁÁÀ¸¸ç ±×¸®°í ¸®º¼·ç¼Ç(Revolution)´ç ¾à 0.001ÀÇ Çǵå·Î
»ç¿ëÇÑ´Ù.´Ü µµ±¸´Â ¾à 7µµÀÇ Àü¸é¿©À¯¸¦ °¡Á®¾ßÇϸç 25µµ ÀÌ»óÀÇ Å« ÆÁÀÌ µµ¿òÀÌ
µÉ °ÍÀÌ´Ù.
-¿ëÁ¢(Welding):
Àι٠36 ÇÕ±ÝÀº ÀüÅëÀûÀÎ ¹æ¹ýÀ¸·Î ¿ëÁ¢ ¼ö ÀÖ½À´Ï´Ù. ¿ëÀ¶ ±Ý¼ÓÀ» °ú¿ÇÏÁö
¾Êµµ·Ï ¸¸Å ÁÖÀÇ°¡ ÇÊ·áÇÏ´Ù. ÇÊ·¯·Îµå°¡ ÇÊ¿äÇÑ °æ¿ì Invarod°¡ »ç¿ëµÇ¾ú½À´Ï´Ù.
-õ°ø(Drilling):
3/16"±¸°æÀ» µå¸±¸µÇÒ ¶§´Â Á÷°æ ±¸¸ÛÀÇ ¼Óµµ 40/FPM°¡ °¡´ÉÇÏ°í Çǵå´Â ȸÀü´ç
¾à 0.002¿¡¼ 0.0025À̾î¾ß ÇÕ´Ï´Ù. 1/2"±¸°æÀº ȸÀü´ç0.004¿¡¼0.005·Î »ç¿ëÇؾß
ÇÑ´Ù. µå¸±Àº ÃÖ´ëÇÑ Âª°ÔÇØ¾ß ÇÏ°í, ±×°ÍÀº Á¾·¡ÀÇ ¹æ¹ýÀ¸·Î ¾ãÀº À¥ÀÌ ¹Ù¶øÁ÷ ÇÏ´Ù.
Á¾·¡ÀÇ ¹æ¹ýÀ¸·Î ³ëÄ¡(Notch) ¾Æ´Ï¸é Å©·©Å© »þÇÁÆ®´Â ¿¬¸¶¿¡ »ç¿ëÇÑ´Ù. ±×°ÍÀº
nitrided ¶Ç´Â electrolyzed Ç¥¸é°ú ¹«°Å¿î À¥ ŸÀÔÀÇ µå¸±À» »ç¿ëÇϽô °ÍÀÌ
ÁÁ½À´Ï´Ù.±¸¸ÛÀº ¹°·Ð ÀÚÁÖ Ä¨À» Á¦°ÅÇϱâ À§Çؼ´Â ÀÚÁÖ ¼¼Ã´ÇØ¾ß ÇÕ´Ï´Ù.µå¸±
°¢µµ´Â 120-118µµ ±îÁö ±¸ÇüÀ̾î¾ß ÇÑ´Ù
-¸®¹Ö(Reaming):
¸®¹Ö(Reaming) ¼Óµµ´Â µå¸±¼ÓµµÀÇ 1/2ÀÌ¿©¾ß ÇÏ°í, Çǵå´Â µå¸± ½ºÇǵåÀÇ 3¹è¿©¾ß
ÇÕ´Ï´Ù. ±×°ÍÀº ¶¥¿¡¼ ¸¶Áø(Margin)Àº ¾à 0.005"¿¡¼ 0.010"Á¤µµ°¡ ÁÁ°í
ÃÀ¹ö(Chamber)´Â 0.005" 0.10"ÀÌ°í ÃÀ¹ö°¢µµ´Â ¾à 30µµ°¡ ÁÁ´Ù.µµ±¸´Â ÃÖ´ëÇÑ Âª°Ô,
¾à 5µµ¿¡¼ 8µµÀÇ ¸é °æ»ç°¢ÀÌ ÀÖ¾î¾ßÇÕ´Ï´Ù.
-ÅÂÇÎ(Tapping):
ÅÜÇο¡¼´Â ±Ý¼ÓÀÌ ÄÆÀ§·Î È带 °ÍÀ̹ǷΠÅܵ帱 Ç¥Áغ¸´Ù ¾à°£ Àç·¡½ÄÀÇ ³ª»ç¸¦
»ç¿ëÇÑ´Ù. ÀÌ°ÍÀº ÀÚµ¿ ±â°è¿¡ µÎ¼¼ Ȩ ºÙÀÌÀÇ ÅÂÇÎ µµ±¸¸¦ »ç¿ëÇØ¾ß ÇÑ´Ù. 3/16"
ÀÌÇÏÀÇ ÅÇ°¡°øÀº 2°³ÀÇ Ç÷çƼµå(Fluted)°¡ ÁÁ´Ù. 8³»Áö 10µµ ¸éÈÄÅ© °¢µµ·Î
±×¶óÀεå ÇؾßÇÏ°í ÅÇÀº 0.003"¿¡¼ 0.005" ÃÀ¹ö ¿¡Áö¸¦ °¡Á®¾ßÇÑ´Ù. °¡´ÉÇÏ´Ù¸é,
¸¸¾à ¹ÙÀεùÀÌ ÅÇÇÎÁß È¦¿¡¼ ÀÏ¾î³´Ù¸é ·£µå(Land)ÀÇ ÆøÀÌ ³Ê¹« ŬÁöµµ ¸ð¸¥´Ù.
ÈúÀÇ ÆøÀ» ¾Æ·¡·Î ³»¸®´Â °ÍÀÌ ÁÁ´Ù. ´Ù½Ã ¸»ÇÏÁö¸¸, ±×°ÍÀÌ nitrided ¶Ç´Â
electrolyzed µµ±¸¸¦ »ç¿ëÇÒ °ÍÀ» ±ÇÀåÇÕ´Ï´Ù. ¼Óµµ´Â 20/FPM ÀÌ¿©¾ß ÇÕ´Ï´Ù.
|
ö ´ÏÄÌ ÇÕ±Ý Àι٠42 (Invar 42) |
1. Á¤ÀÇ
ÇÕ±Ý Àι٠42´Â À¯¸®¸¦ ±Ý¼Ó¿¡ Á¢ÂøÇÒ ¶§ ³Ð°Ô »ç¿ëµÇ´Â ´ÏÄÌ°ú öÀÇ Á¦¾îÈ®Àå
ÇÕ±ÝÀÌ´Ù. ÀÌ ÇÕ±ÝÀÇ ÆØâ°è¼ö°¡ 1075 À¯¸®¿Í °ÅÀÇ ºñ½ÁÇÏ´Ù. 0120°ú 0010
À¯¸®ÀÇ Á¢Âø¿¡ »ç¿ëµÇ¾î ¿Ô´Ù.¾ãÀº ±ú²ýÇÑ °üÇü Á¢ÂøÁ¦¸¦ »ç¿ëÇÏ´Â °æ¿ì ¶ÇÇÑ
Çϵå À¯¸®¿Í ÇÔ²² »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù. ±× Á¢ÂøÁ¦ Á¢ÂøÀü¿¡ Çϵå·Î°Õ ¾Æ´ÒµåµÇÁö
¾ÊÀº Á¢ÂøÁ¦³ª ÀûÀº ¾çÀÇ Æ¼Å¸´½À» Æ÷ÇÔÇÏ´Â ´Ù¾çÇÑ ÇÕ±ÝÀ» À§Çؼ Á¢ÂøƯ¼ºÀ»
°®´Â ¾Á¸µ42°¡ °¡½º¾ø´Â Á¢ÂøƯ¼º È«º¸Çϱâ À§ÇØ »ç¿ëµÇ¾î ¿Ô´Ù.
|
2. ÈÇмººÐ
Carbon |
0.05 Max |
Nickel |
41.00 Max |
Iron |
Balance |
Silicon |
0.20 Max |
Manganese |
0.400 Max |
|
|
|
3. ¿ëµµ(Applications)
ÇÕ±Ý Àι٠42´Â ÀüÀÚ Æ©ºê, ÀÚµ¿Â÷ ¹× »ê¾÷¿ë ·¥ÇÁ¿¡ À¯¸®¿Í ±Ý¼ÓÁ¢Âø ¾Á¿¡
»ç¿ëµÇ°í º¯¾Ð±â ¹× Äܵ§¼ ºÎ½Ì ¹× ±âŸ À¯¸®¿Í ±Ý¼Ó ¹× ¼¼¶ó¹Í°ú ±Ý¼ÓÀÇ
Á¢ÃË¿ëµµ·Î »ç¿ëµÇ¾î Áö°í ÀÖ´Ù
|
4. ¹°¼ºµ¥ÀÌÅÍ(Physical Properties)
Specific gravity ........8.12 Inflection Point
Density ¡ÆF......... 650
lb/cu in .............0.293 ¡ÆC ........ 343
Thermal conductivity Curie Temperature
Btu-in/ft©÷/¡ÆF........74.5 ¡ÆF.........715
W/m-K (20/1...........10.7 ¡ÆC .........380
Electrical resistivity Melting Point
ohm-cir mil/ft .......400 ¡ÆF..........2600
microhm-mm............ 66 ¡ÆC..........1427
Temperature coefficient of electrical Specific heat
resistivity Btu/lb-¡ÆF.. 0.12
per ¡ÆF(70/212¡ÆF)....0.0006 kJ/kg-K .......0.50
per ¡ÆC(20/100¡ÆC) ...0.001 Modulus of elasticity
Mean coefficient fo thermal expansion psi x 10(6) .. 21.5
10(-6)/¡ÆF(86 to 572¡ÆF) ..2.2-2.6 MPa x 10(3).. 148.4
(86 to 842¡ÆF) .. 3.7-4.1
10(-6)/¡ÆC(30 to 300¡ÆC) .. 4.0-4.7
(30 to 450¡ÆC) ... 6.7-7.4
|
5. ¿Ã³¸®(Heat Treatment)
¾Æ´Ò¸µ(Annealing): ¼·¾¾788µµ(1450F)¿¡¼ Àû¾îµµ ÀÎÄ¡¶Ñ²²´ç 1½Ã°£ ¹Ý
À¯ÁöÇÑÈÄ °ø³ÃÇÑ´Ù..
|
5. ÀÛ¾÷¼º(Workability)
´ÜÁ¶(Forging):´ÜÁ¶´Â ¼·¾¾1177/1204µµ(2150/2200F)¿¡¼ ÇàÇØÁö°í
³ëÀÇ ºÐÀ§±â¿¡¼ À¯È²Èí¼ö¸¦ ¹æÁöÇϱâ À§ÇØ Áö³ªÄ£ ¼ÓÅ·(Soaking)À»
ÇÇÇØ¾ß ÇÑ´Ù.³Ã°£Çìµù(Cold Heading):À¯¸® Á¢ÂøÁ¦ 42´Â ÇüÀÌ ¶ßÁö°í
³Ã°£ ¾÷¼ÂÇÑ´Ù.
ºê·©Å·/Æ÷¹Ö(Blanking or forming):À¯¸® ¾Á¸µ 42ÀÇ ±ú²ýÇÑ ºí·©Å·À»
À§Çؼ´Â ¾à B90ÀÇ ·ÎÅ©À£ °æµµ°¡ µÇ¾î¾ß ÇÕ´Ï´Ù. ½ºÆ®¸³À̳ª
¸·´ë·Î ºÎÅÍ ¿Ï¼ºµÈ ºÎÇ°À» ¸¸µé±â À§Çؼ´Â ·ÎÅ©À£ B93 ÀÌÇÏÀÇ °æµµ°¡
ÇÊ¿äÇÕ´Ï´Ù.
¿¬¸¶(Grinding):¾Á¸®ÄÜ Ä«¹ÙÀÌÆ® ÈÙÀÌ ¿¬¸¶¸¦ À§ÇØ ¹Ù¶÷Á÷ÇÏ´Ù.
´õ ¹Ù¶÷Á÷ÇÑ °ÍÀº ·Îµù ¾øÀÌ ¿¬¸¶°¡´ÉÇÑ ¿¬Áú ÈÙÀÌ´Ù. No.80 ±×¸®Æ®°¡
¸¶Áö¸· ¸¶°¨À» À§Çؼ ¸¸Á·½º·¯¿î ±×·¹À̵å ÀÌ´Ù.
¿ëÁ¢(Welding):ÀüÅëÀûÀÎ ¿ëÁ¢ ¹æ¹ýÀ¸·Î ¿ëÁ¢ÀÌ °¡´ÉÇÏ´Ù. ÇÊ·¯°¡
¿ä±¸µÇ¸é ±×·¡½º¾Á 42°¡ Ãßõ µÇ¾îÁø´Ù..
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ö ´ÏÄÌ ÇÕ±Ý ÄÚ¹Ù (Kovar) |
1. Á¤ÀÇ
ÄÚ¹Ù Kovar ÇÕ±ÝÀº Á¤È®ÇÏ°í ±ÕÀÏÇÑ ¿ÆØâ Ư¼ºÀ» º¸ÀåÇϱâ À§ÇØ
Á¼Àº Çѵµ ¹üÀ§ ³»¿¡¼ ÈÇÐÀû ¼ººÐÀÌ Á¦¾îµÇ°í, Áø°ø ÁÖÁ¶µÇ°í,
¿ÆØâ°è¼ö°¡ ³·Àº ö - ´ÏÄÌ - ÄÚ¹ßÆ® ÇÕ±ÝÀÌ´Ù. ÀÌÇÕ±ÝÀ»
Á¦Á¶Çϴµ¥¿¡ µðÇÁ µå·ÎÀ×, ½ºÅÆÇÎ ¹× °¡°øÀÇ ¿ëÀ̼ºÀ» À§ÇØ
±ÕÀÏÇÑ ¹°¸®Àû, ±â°èÀû Ư¼ºÀ» º¸ÀåÇϱâ À§ÇØ ±¤¹üÀ§ÇÑ Ç°Áú°ü¸®°¡ ÀÌ·ç¾î Áö°í ÀÖ´Ù.
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2. ÈÇмººÐ
Carbon |
0.02 Max |
Nickel |
29.00 Max |
Iron |
Balance |
Silicon |
0.20 Max |
Manganese |
0.300 Max |
Cobalt |
17.00 Max |
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3. ¿ëµµ(Applications)
ÄÚ¹Ù Kovar ÇÕ±ÝÀº ´Ü´ÜÇÑ PyrexÀÇ À¯¸® ¹× ¼¼¶ó¹Í ¼ÒÀç·Î
ÀÌ»óÀûÀÎ ¾ÁÀ» ¸¸µé±â À§ÇØ »ç¿ëµÇ¾ú½À´Ï´Ù. ÀÌ ÇÕ±ÝÀº ÆÄ¿ö
Æ©ºê, ÀüÀÚ Æ©ºê, Æ®·£Áö½ºÅÍ ¹× ´ÙÀÌ¿Àµå¿¡ ´Ù¾çÇÏ°Ô »ç¿ëµÇ¾îÁö°í
ÀÖ´Ù. IC ȸ·Î¿¡¼´Â, ±×°ÍÀº Ç÷§ ÆÑ ¹× µà¾ó ÀζóÀÎ ÆÐÅ°Áö¿¡
»ç¿ëµÇ°í ÀÖ½À´Ï´Ù.
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4. ¹°¼ºµ¥ÀÌÅÍ(Physical Properties)
Specific gravity........8.36 Curie temperature
Density ¡ÆF......... 815
lb/cu in.............0.302 ¡ÆC......... 435
kg/cu m..............8359 Melting Point
Thermal conductivity ¡ÆF......... 2640
Btu-in/ft©÷/hr/¡ÆF...120 ¡ÆC......... 1450
W/m-K................17.3 Modulus of elasticity
Electrical resistivity psi x 10(6) .. 20
ohm-cir mil/ft.......294 MPa x 10(3)... 138
microhm-mm...........490
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5. ¾Á¸µÁغñ(Preparation for Sealing)
¿ÀÀϾøÀÌ, °¡°øµÈ ÄÚ¹Ù ÇÕ±Ý ºÎÇ°Àº °³½º¾øÀÌ Á¥Àº ¼ö¼Ò ºÐÀ§±â¿¡¼ ¾Æ´Òµå
µÇ¾î¾ßÇÑ´Ù. ÀÌ ºÐÀ§±â´Â »ó¿Â¿¡¼ ¹°À» ÅëÇØ ¼ö¼Ò¸¦ ¹ö¹ú¸µÇÔÀ¸·Î¼
ÃËÃËÇÏ°Ô ÇÏ¿© ¸¸µç´Ù. Ç¥¸é ź¼Ò ÇȾ÷À» ¹æÁöÇϴµ¥ ƯÈ÷ ÁÖÀÇÇÏ¿©¾ß ÇÑ´Ù.
Àü±â·Î´Â µ¿ÀÏÇÑ ºÐÀ§±â¿Í ÇÔ²² Á¦°øµÇ´Â ³Ã°¢ è¹ö¸¦ °®°í ÀÖ¾î¾ß ÇÑ´Ù.
³¹æÀº 1540F¿Í 2010F »çÀÌ¿¡¼ °¡¿ÀÌ ½Ç½ÃÇÏ¿©¾ßÇÑ´Ù. ¿Âµµ¿¡¼ÀÇ Ã¼·ù
½Ã°£Àº ÃÖ°í ±â¿Â¿¡¼ 20 ºÐ ÃÖÀú ±â¿Â ¾à 2 ½Ã°£ÀÌ µÉ¼öµµ ÀÖ½À´Ï´Ù.
ºÎÇ°Àº ´ÙÀ½ ³Ã°¢ Áö´ë·Î Àü¼ÛÇÏ°í ´ÙÀ½ 570FÀÌÇÏ¿¡¼ ü·ùÇÑÈÄ ±×¸®°í
À̵¿ÇØ¾ß ÇÑ´Ù.
±Ý¼Ó ºÎºÐ¿¡ »êȹ° Çʸ§Àº ±Ý¼Ó°ú Çϵå À¯¸® ¾Á¸µÀ» À§ÇØ ÁÁ½À´Ï´Ù.ÃÖ°íÀÇ
»êȹ° Çʸ§Àº ¾ã°í ´Ü´ÜÇØ ¿ì¼öÇÕ´Ï´Ù. »êÈÇʸ§Àº ¾à°£ °¥»öÀÇ »êÈ¿¡
¾îµÎ¿î ȸ»öÀ» Çü¼ºÇÒ ¶§±îÁö ÃæºÐ ±â°£ µ¿¾È Á¤±âÀûÀ¸·Î ³ëÀÇ ºÐÀ§±â
Ⱦ¾1200F/1290F·Î ºÎÇ°À» °¡¿ÇÔÀ¸·Î¼ Çü¼ºÇÒ ¼ö ÀÖ´Ù.
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5. ÀÛ¾÷¼º(Workability)
´ÜÁ¶(Forging):
´ÜÁ¶¿¡¼ °üÂûÇÏ´Â ÁÖ¿ä¿øÄ¢Àº ½Å¼ÓÇÏ°Ô °¡¿ÇÏ°í ·Î³»¿¡¼ ¼ÒÅ·(Soaking)ÇÏÁö
¾Êµµ·ÏÇÏ´Â °ÍÀÔ´Ï´Ù. ±ä ¼ÒÅ·(Soaking)Àº ³ëÀÇ ºÐÀ§±â ¹× / ¶Ç´Â »êȹ°ÀÇ
ħÅõ·ÎºÎÅÍ À¯È²ÀÇ Èí¼ö·Î ÀÎÇØ ÈìÁý Ç¥¸éÀ» ÃÊ·¡ÇÒ ¼ö ÀÖ½À´Ï´Ù. ¼·¾¾1177/1093µµ
(2,150/2,000F)ÀÇ ´ÜÁ¶ ¿Âµµ ÁÁ½À´Ï´Ù
³Ã°¢Á¦(Coolant):
³Ã°¢Á¦¿¡¼´Â ¿ÃàÀû,ÁÖ¿ä ¿öÆäÀÌÁö(Warpage)¿øÀÎÀ» Á¦¾îÇÏ´Â °ÍÀÌ Áß¿äÇÕ´Ï´Ù.
Á¦¾ÈµÈ ³Ã°¢Á¦°¡ ¸ÚÁø µµ±¸°¡ µÉ °ÍÀÔ´Ï´Ù. ³Ã°¢ µµ±¸´Â Àý»è ¿µ¿ª¿¡ ¸¶Âû°ú
Àý»è °ø±¸¿Í Á÷Àå »çÀÌÀÇ ¸¶Âû¿¡ ÀÇÇØ »ý¼ºµÈ ¿À» Á¦°ÅÇÏ°í ³Ã¸Å¸¦ ÁÙÀ̱â À§ÇØ
Áö¹æ»ê ¿¡½ºÅ׸£°¡ Æ÷ÇԵǾî ÀÖ½À´Ï´Ù.
µµ±¸(Tooling)
Vanadium Alloys Company»çÀÇ ¹Ù½ºÄÚ ½´ÆÛ¸²°ú °°Àº T-15 ÇÕ±Ý,"Vanadium Alloys
Company"»ç¿¡¼ »ý»êµÈ Van Cut Type 2¿Í °°Àº M-3 Type 2, ±×¸®°í Braeburn»çÀÇ
Congo µîÀÌ ÀÖ´Ù.
ÃÊ°æ °ø±¸·Î´Â, Kennemetal°¡ Á¦Á¶ÇÏ´Â K-6, ÈÄ¹Ì ½ºÅиµ¿¡¼ Á¦Á¶ÇÑ Firthie HA,
¶Ç´Â # 370 Carboloy°¡ »ç¿ëµÉ ¼öÀÖ´Ù, ¶Ç´Â Kennemetal°¡ Á¦Á¶ K2S, ¶Ç´Â
½ºÅиµ»çÀÇ Firthie T-04°¡ Àß »ç¿ëµÇ°í ÀÖ´Ù. Áß¿äÇÑ ÇÑ °¡Áö´Â °ø±¸¿¡¼ ¸ðµç
ÀÜ·ù¹°À̳ª Àý»è °¡ÀåÀÚ¸®°¡ Á¦°ÅµÇ¾î¾ßÇÑ´Ù´Â °ÍÀÔ´Ï´Ù. ±×µéÀº ¹Ýº¹ °Ë»ç¸¦ ÅëÇÏ¿©
ÃÖ»óÀÇ »óÅ·Πº¸°üÇؾßÇÕ´Ï´Ù.
Àý»è(Turning):
ö° Àý´Ü µµ±¸¸¦ »ç¿ëÇÏ´Â °æ¿ì, ¸®º¼·ç¼Ç(Revolution)´ç "0.010·Î"¾à 0.012ÀÇ
Çǵ带 ½ÃµµÇÏ°í ±×¸£¸é 35/FPM¼Óµµ¿¡ µµ´ÞÇÒ °ÍÀÌ´Ù.Àý»è °ø±¸ÀÇ Ãµ»ç Áß ÀϺδÂ
´ÙÀ½°ú °°½À´Ï´Ù.
End cutting edge angle -Approximately 7¡Æ
Nose radius -Approximately .005"
Side cutting edge angle -Approximately 15¡Æ
Back rake -Approximately 8¡Æ
Side rake -Approximately 8¡Æ
°í¼Óµµ ÅøÀÌ ÃÊ°æ °ø±¸º¸´Ù ÁÁÀ¸¸ç ±×¸®°í ¸®º¼·ç¼Ç(Revolution)´ç ¾à 0.001"ÀÇ
Çǵå·Î »ç¿ëÇÑ´Ù.´Ü µµ±¸´Â ¾à 7µµÀÇ Àü¸é¿©À¯¸¦ °¡Á®¾ßÇϸç 25µµ ÀÌ»óÀÇ Å« ÆÁÀÌ
µµ¿òÀÌ µÉ °ÍÀÌ´Ù.
õ°ø(Drilling):
3/16"±¸°æÀ» µå¸±¸µÇÒ ¶§´Â "Á÷°æ ±¸¸ÛÀÇ ¼Óµµ 40/FPM°¡ °¡´ÉÇÏ°í Çǵå´Â ȸÀü´ç
¾à 0.002¿¡¼ 0.0025À̾î¾ßÇÕ´Ï´Ù. 1/2"±¸°æÀº ȸÀü´ç"¤·.004¿¡¼0.005·Î »ç¿ëÇؾß
ÇÑ´Ù. µå¸±Àº ÃÖ´ëÇÑ Âª°ÔÇؾßÇÏ°í, ±×°ÍÀº Á¾·¡ÀÇ ¹æ¹ýÀÎ ¾ãÀº À¥ÀÌ ¹Ù¶øÁ÷ ÇÏ´Ù.
Á¾·¡ÀÇ ¹æ¹ýÀ¸·Î, ¿ì¸®´Â ³ëÄ¡(Notch) ¾Æ´Ï¸é Å©·©Å© »þÇÁÆ®´Â ¿¬¸¶¿¡ »ç¿ëÇÑ´Ù.
±×°ÍÀº nitrided ¶Ç´Â electrolyzed Ç¥¸é°ú ¹«°Å¿î À¥ ŸÀÔÀÇ µå¸±À» »ç¿ëÇϽôÂ
°ÍÀÌ ÁÁ½À´Ï´Ù.±¸¸ÛÀº ¹°·Ð ÀÚÁÖ Ä¨À» Á¦°ÅÇϱâ À§Çؼ´Â ÀÚÁÖ ¼¼Ã´ÇؾßÇÕ´Ï´Ù.
µå¸± °¢µµ´Â 120-118µµ ±îÁö ±¸ÇüÀ̾î¾ß ÇÑ´Ù.
¸®¹Ö(Reaming):
¸®¹Ö(Reaming) ¼Óµµ´Â µå¸±¼ÓµµÀÇ 1/2ÀÌ¿©¾ß ÇÏ°í, Çǵå´Â µå¸± ½ºÇǵåÀÇ 3¹è¿©¾ß
ÇÕ´Ï´Ù. ±×°ÍÀº ¶¥¿¡¼ ¸¶Áø(Margin)Àº ¾à 0.005"¿¡¼ 0.010"Á¤µµ°¡ ÁÁ°í
ÃÀ¹ö(Chamber)´Â 0.005" 0.10"ÀÌ°í ÃÀ¹ö°¢µµ´Â ¾à 30µµ°¡ ÁÁ´Ù. µµ±¸´Â ÃÖ´ëÇÑ
ª°Ô, ¾à5µµ¿¡¼ 8µµÀÇ ¸é °æ»ç°¢ÀÌ ÀÖ¾î¾ßÇÕ´Ï´Ù.
ÅÇÇÎ(Tapping):
ÅÜÇο¡¼´Â ±Ý¼ÓÀÌ ÄÆÀ§·Î È带 °ÍÀ̹ǷΠÅܵ帱 Ç¥Áغ¸´Ù ¾à°£ Àç·¡½ÄÀÇ ³ª»ç¸¦
»ç¿ëÇÑ´Ù. ÀÌ°ÍÀº ÀÚµ¿ ±â°è¿¡ µÎ¼¼ Ȩ ºÙÀÌÀÇ ÅÂÇÎ µµ±¸¸¦ »ç¿ëÇØ¾ß ÇÑ´Ù.
3/16"ÀÌÇÏÀÇ ÅÇ°¡°øÀº 2°³ÀÇ Ç÷çƼµå(Fluted)°¡ ÁÁ´Ù. 8³»Áö 10µµ ¸é ÈÄÅ©
°¢µµ·Î ±×¶óÀεå ÇؾßÇÏ°í ÅÇÀº 0.003"¿¡¼ 0.005" ÃÀ¹ö ¿¡Áö¸¦ °¡Á®¾ßÇÑ´Ù.
°¡´ÉÇÏ´Ù¸é, ¸¸¾à ¹ÙÀεùÀÌ ÅÇÇÎÁß È¦¿¡¼ ÀÏ·¯³´Ù¸é ·£µå(Land)ÀÇ ÆøÀÌ ³Ê¹«
ŬÁöµµ ¸ð¸¥´Ù. ÈúÀÇ ÆøÀ» ¾Æ·¡·Î ³»¸®´Â °ÍÀÌ ÁÁ´Ù. ´Ù½Ã ¸»ÇÏÁö¸¸, ±×°ÍÀÌ
nitrided ¶Ç´Â electrolyzed µµ±¸¸¦ »ç¿ëÇÒ °ÍÀ» ±ÇÀåÇÕ´Ï´Ù. ¼Óµµ´Â 20/FPM
ÀÌ¿©¾ß ÇÕ´Ï´Ù.
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