JPH0570685B2 - - Google Patents
Info
- Publication number
- JPH0570685B2 JPH0570685B2 JP26178287A JP26178287A JPH0570685B2 JP H0570685 B2 JPH0570685 B2 JP H0570685B2 JP 26178287 A JP26178287 A JP 26178287A JP 26178287 A JP26178287 A JP 26178287A JP H0570685 B2 JPH0570685 B2 JP H0570685B2
- Authority
- JP
- Japan
- Prior art keywords
- spheroidization
- temperature
- hardness
- rolling
- annealing
- 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 - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010273 cold forging Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 36
- 238000000137 annealing Methods 0.000 description 35
- 238000010583 slow cooling Methods 0.000 description 21
- 229910001567 cementite Inorganic materials 0.000 description 20
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 20
- 229910001562 pearlite Inorganic materials 0.000 description 12
- 230000009466 transformation Effects 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 238000004904 shortening Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 5
- 229910001563 bainite Inorganic materials 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26178287A JPH01104718A (ja) | 1987-10-19 | 1987-10-19 | 冷間鍛造用棒線材の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26178287A JPH01104718A (ja) | 1987-10-19 | 1987-10-19 | 冷間鍛造用棒線材の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01104718A JPH01104718A (ja) | 1989-04-21 |
| JPH0570685B2 true JPH0570685B2 (sl) | 1993-10-05 |
Family
ID=17366627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26178287A Granted JPH01104718A (ja) | 1987-10-19 | 1987-10-19 | 冷間鍛造用棒線材の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01104718A (sl) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4900598B2 (ja) * | 2007-06-29 | 2012-03-21 | 三洋電機株式会社 | 電解コンデンサおよびその製造方法 |
| JP5018305B2 (ja) * | 2007-07-19 | 2012-09-05 | 住友金属工業株式会社 | 軸受粗成形品の製造方法 |
| JP5067120B2 (ja) * | 2007-10-29 | 2012-11-07 | 住友金属工業株式会社 | 軸受粗成形品の製造方法 |
| JP2015168882A (ja) * | 2014-03-11 | 2015-09-28 | 株式会社神戸製鋼所 | 合金鋼の球状化熱処理方法 |
| JP6479538B2 (ja) * | 2015-03-31 | 2019-03-06 | 株式会社神戸製鋼所 | 機械構造部品用鋼線 |
| JP2018168473A (ja) * | 2018-07-06 | 2018-11-01 | 株式会社神戸製鋼所 | 合金鋼の球状化熱処理方法 |
-
1987
- 1987-10-19 JP JP26178287A patent/JPH01104718A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01104718A (ja) | 1989-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313117 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |