JPH044373B2 - - Google Patents
Info
- Publication number
- JPH044373B2 JPH044373B2 JP13175487A JP13175487A JPH044373B2 JP H044373 B2 JPH044373 B2 JP H044373B2 JP 13175487 A JP13175487 A JP 13175487A JP 13175487 A JP13175487 A JP 13175487A JP H044373 B2 JPH044373 B2 JP H044373B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- rail
- heat treatment
- temperature
- head
- 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
- 238000001816 cooling Methods 0.000 claims description 63
- 238000010438 heat treatment Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 17
- 230000009466 transformation Effects 0.000 claims description 16
- 229910001562 pearlite Inorganic materials 0.000 claims description 7
- 238000009835 boiling Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13175487A JPS63297522A (ja) | 1987-05-29 | 1987-05-29 | レ−ルの熱処理方法 |
| US07/196,317 US4886558A (en) | 1987-05-28 | 1988-05-20 | Method for heat-treating steel rail head |
| DE8888108529T DE3861261D1 (de) | 1987-05-28 | 1988-05-27 | Verfahren zur waermebehandlung von stahlschienenkoepfen. |
| CA000567884A CA1303468C (en) | 1987-05-28 | 1988-05-27 | Method for heat-treating steel rail head |
| EP88108529A EP0293002B1 (en) | 1987-05-28 | 1988-05-27 | Method for heat-treating steel rail head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13175487A JPS63297522A (ja) | 1987-05-29 | 1987-05-29 | レ−ルの熱処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63297522A JPS63297522A (ja) | 1988-12-05 |
| JPH044373B2 true JPH044373B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-01-28 |
Family
ID=15065407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13175487A Granted JPS63297522A (ja) | 1987-05-28 | 1987-05-29 | レ−ルの熱処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63297522A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1987
- 1987-05-29 JP JP13175487A patent/JPS63297522A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63297522A (ja) | 1988-12-05 |