JP5810588B2 - 浸炭雰囲気炉用熱反射板及び浸炭処理方法 - Google Patents
浸炭雰囲気炉用熱反射板及び浸炭処理方法 Download PDFInfo
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- JP5810588B2 JP5810588B2 JP2011079251A JP2011079251A JP5810588B2 JP 5810588 B2 JP5810588 B2 JP 5810588B2 JP 2011079251 A JP2011079251 A JP 2011079251A JP 2011079251 A JP2011079251 A JP 2011079251A JP 5810588 B2 JP5810588 B2 JP 5810588B2
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- carburizing
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- 238000005255 carburizing Methods 0.000 title claims description 45
- 238000000034 method Methods 0.000 title claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 30
- 229910000601 superalloy Inorganic materials 0.000 claims description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 description 23
- 238000012360 testing method Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 14
- 238000005259 measurement Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 9
- 238000002310 reflectometry Methods 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 238000012795 verification Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229910001055 inconels 600 Inorganic materials 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
試験方法:大気中で供試材の下面を加熱し、上面温度を接触式温度計(熱電対)により求め、同時測定の放射温度計による測定値と一致するように、放射率を補正し、「1−(放射率)」により反射率を求めた。
試験方法は、箱型の加熱炉の内壁に反射板として厚さ10μmmのアルミ箔を貼り、該反射板を設けた場合及び反射板を設けない場合の、昇温に必要な電力、温度保持中の炉表面の温度の差をみて前記反射板の熱反射効果、放射熱遮断効果及び被処理物の均一加熱の検証を行った。
発明者は前記反射板の効果検証に基づき、浸炭炉への反射板の使用について試験を行った。浸炭炉に使用する反射板には、浸炭雰囲気に対する耐食性、空気に対する耐酸化性及び処理温度に対する耐高温性などが要求される。本発明者は超耐熱合金に注目した。
試験条件;カーボンポテンシャルが0.8、温度930℃の浸炭ガス雰囲気の炉内に供試材を配置(暴露)し、1週間後、2週間後にそれぞれ前記供試材を取り出しての反射率を測定した。
Claims (4)
- ニッケル基超耐熱合金よりなる供試材を、カーボンポテンシャルが0.8で温度が930℃の浸炭ガス雰囲気の炉内に配置して1週間後に取り出し、大気中で200℃、500℃の各温度に加熱して測定した熱反射率がいずれも50%以上である前記ニッケル基超耐熱合金よりなる浸炭雰囲気炉用熱反射板。
- ニッケル基超耐熱合金よりなる供試材を、カーボンポテンシャルが0.8で温度が930℃の浸炭ガス雰囲気の炉内に配置して1週間後に取り出し、大気中で200℃、500℃、950℃の各温度に加熱して測定した熱反射率がいずれも50%以上である前記ニッケル基超耐熱合金よりなる浸炭雰囲気炉用熱反射板。
- 前記ニッケル基超耐熱合金がクロムとアルミニウムを含有することを特徴とする請求項1又は2に記載の浸炭雰囲気炉用熱反射板。
- 断面が矩形の炉内の側面壁と上下壁に、請求項1,2又は3に記載の浸炭雰囲気炉用熱反射板を設置し、浸炭雰囲気で加熱し浸炭処理を行う浸炭処理方法。
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Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS59205583A (ja) * | 1983-05-06 | 1984-11-21 | 大阪瓦斯株式会社 | 工業炉 |
JPH01179241A (ja) * | 1987-12-28 | 1989-07-17 | Mitsui Petrochem Ind Ltd | 光磁気記録媒体 |
JPH1193605A (ja) * | 1997-09-16 | 1999-04-06 | Ishikawajima Harima Heavy Ind Co Ltd | セラミックタービン動翼の緩衝層 |
WO2007020773A1 (ja) * | 2005-08-17 | 2007-02-22 | Asahi Glass Company, Limited | 溶融ガラスの導管構造 |
US8559101B2 (en) * | 2005-08-26 | 2013-10-15 | Panasonic Corporation | Reflector and apparatus including the reflector |
CN101389914B (zh) * | 2006-03-23 | 2012-07-25 | 株式会社村田制作所 | 热处理炉 |
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