RU96105231A - Способ упрочнения поверхностей стальных изделий - Google Patents
Способ упрочнения поверхностей стальных изделийInfo
- Publication number
- RU96105231A RU96105231A RU96105231/02A RU96105231A RU96105231A RU 96105231 A RU96105231 A RU 96105231A RU 96105231/02 A RU96105231/02 A RU 96105231/02A RU 96105231 A RU96105231 A RU 96105231A RU 96105231 A RU96105231 A RU 96105231A
- Authority
- RU
- Russia
- Prior art keywords
- furnace
- heating
- steel products
- ammonia
- products
- Prior art date
Links
- 238000005728 strengthening Methods 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 3
- 238000010494 dissociation reaction Methods 0.000 claims 2
- 230000005593 dissociations Effects 0.000 claims 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 238000003763 carbonization Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000002344 surface layer Substances 0.000 claims 1
Claims (1)
- Способ упрочнения поверхностей стальных изделий, включающий загрузку изделий в печь, нагрев в печной атмосфере воздуха до 400oC, нагрев в среде аммиака, охлаждение вместе с печью, отличающийся тем, что загрузку изделий в печь осуществляют после ее подогрева до 500 - 520oC, нагрев в печной атмосфере воздуха ведут в течение 5 - 10 мин для получения оксидного поверхностного слоя, затем осуществляют очистку поверхностей водородом при диссоциации аммиака до 520oC, от 520 до 580oC проводят карбонизацию при разложении карбамида или одновременно с подачей аммиака при степени его диссоциации меньше 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU96105231A RU2109075C1 (ru) | 1996-03-19 | 1996-03-19 | Способ упрочнения поверхностей стальных изделий |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU96105231A RU2109075C1 (ru) | 1996-03-19 | 1996-03-19 | Способ упрочнения поверхностей стальных изделий |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2109075C1 RU2109075C1 (ru) | 1998-04-20 |
| RU96105231A true RU96105231A (ru) | 1998-05-27 |
Family
ID=20178196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU96105231A RU2109075C1 (ru) | 1996-03-19 | 1996-03-19 | Способ упрочнения поверхностей стальных изделий |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2109075C1 (ru) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442651A (zh) * | 2020-10-16 | 2021-03-05 | 福建英创金属分子工程科技有限公司 | 一种铁基金属表面分子处理方法 |
-
1996
- 1996-03-19 RU RU96105231A patent/RU2109075C1/ru active
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