JPS6253561B2 - - Google Patents
Info
- Publication number
- JPS6253561B2 JPS6253561B2 JP57143657A JP14365782A JPS6253561B2 JP S6253561 B2 JPS6253561 B2 JP S6253561B2 JP 57143657 A JP57143657 A JP 57143657A JP 14365782 A JP14365782 A JP 14365782A JP S6253561 B2 JPS6253561 B2 JP S6253561B2
- Authority
- JP
- Japan
- Prior art keywords
- steel powder
- heat treatment
- denitrification
- cooling
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000843 powder Substances 0.000 claims description 86
- 229910000831 Steel Inorganic materials 0.000 claims description 81
- 239000010959 steel Substances 0.000 claims description 81
- 238000010438 heat treatment Methods 0.000 claims description 63
- 238000001816 cooling Methods 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 14
- 238000004663 powder metallurgy Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000000112 cooling gas Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000010583 slow cooling Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/142—Thermal or thermo-mechanical treatment
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Powder Metallurgy (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57143657A JPS5935601A (ja) | 1982-08-19 | 1982-08-19 | 紛末冶金用高圧縮性アトマイズ鋼紛の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57143657A JPS5935601A (ja) | 1982-08-19 | 1982-08-19 | 紛末冶金用高圧縮性アトマイズ鋼紛の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5935601A JPS5935601A (ja) | 1984-02-27 |
| JPS6253561B2 true JPS6253561B2 (ko) | 1987-11-11 |
Family
ID=15343885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57143657A Granted JPS5935601A (ja) | 1982-08-19 | 1982-08-19 | 紛末冶金用高圧縮性アトマイズ鋼紛の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935601A (ko) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61110702A (ja) * | 1984-11-01 | 1986-05-29 | Kawasaki Steel Corp | 生産性に優れる鉄鋼粉の熱処理方法 |
| JPH0773894B2 (ja) * | 1990-11-19 | 1995-08-09 | 株式会社アサヒコーポレーション | 多色靴底の射出成形法 |
| WO2006068044A1 (ja) * | 2004-12-21 | 2006-06-29 | Daikin Industries, Ltd. | スクロール型流体機械 |
| EP3778963B1 (en) * | 2018-03-26 | 2024-02-21 | JFE Steel Corporation | Alloyed steel powder for powder metallurgy and iron-based mixed powder for powder metallurgy |
| WO2019189012A1 (ja) * | 2018-03-26 | 2019-10-03 | Ｊｆｅスチール株式会社 | 粉末冶金用合金鋼粉および粉末冶金用鉄基混合粉末 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443119A (en) * | 1977-09-12 | 1979-04-05 | Kawasaki Steel Co | Heat treatment of iron powder for use in powder metallurgy |
-
1982
- 1982-08-19 JP JP57143657A patent/JPS5935601A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443119A (en) * | 1977-09-12 | 1979-04-05 | Kawasaki Steel Co | Heat treatment of iron powder for use in powder metallurgy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5935601A (ja) | 1984-02-27 |
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