JPH0219175B2 - - Google Patents
Info
- Publication number
- JPH0219175B2 JPH0219175B2 JP31047586A JP31047586A JPH0219175B2 JP H0219175 B2 JPH0219175 B2 JP H0219175B2 JP 31047586 A JP31047586 A JP 31047586A JP 31047586 A JP31047586 A JP 31047586A JP H0219175 B2 JPH0219175 B2 JP H0219175B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- tempered martensite
- tempered
- strength
- rolled
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 55
- 239000010959 steel Substances 0.000 claims description 55
- 229910000734 martensite Inorganic materials 0.000 claims description 24
- 229910000859 α-Fe Inorganic materials 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229910001562 pearlite Inorganic materials 0.000 claims description 13
- 239000002344 surface layer Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910001563 bainite Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 20
- 238000010791 quenching Methods 0.000 description 17
- 230000000171 quenching effect Effects 0.000 description 14
- 238000005496 tempering Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 6
- 238000003303 reheating Methods 0.000 description 5
- 229910000760 Hardened steel Inorganic materials 0.000 description 4
- 229910001566 austenite Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31047586A JPS63161117A (ja) | 1986-12-24 | 1986-12-24 | 高強度高靭性熱間圧延鋼材の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31047586A JPS63161117A (ja) | 1986-12-24 | 1986-12-24 | 高強度高靭性熱間圧延鋼材の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161117A JPS63161117A (ja) | 1988-07-04 |
| JPH0219175B2 true JPH0219175B2 (ko) | 1990-04-27 |
Family
ID=18005690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31047586A Granted JPS63161117A (ja) | 1986-12-24 | 1986-12-24 | 高強度高靭性熱間圧延鋼材の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63161117A (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557052B2 (ja) * | 1986-12-09 | 1996-11-27 | 日本発条株式会社 | ばね用鋼材の製造方法 |
| JP2551251B2 (ja) * | 1991-03-26 | 1996-11-06 | 住友金属工業株式会社 | 耐火性に優れたボルトおよびナット用鋼 |
| JPH08945B2 (ja) * | 1991-08-27 | 1996-01-10 | 日本鋳鍛鋼株式会社 | 耐火性および靭性の優れた鍛鋼品ならびにその製造方法 |
| JP5268225B2 (ja) * | 2005-10-07 | 2013-08-21 | トピー工業株式会社 | 建設機械下部走行体のローラーシェルの製造方法 |
| JP2011006771A (ja) * | 2008-07-11 | 2011-01-13 | Sanyo Special Steel Co Ltd | 棒鋼移動焼入れ時の焼割れ防止冷却方法 |
| JP6443324B2 (ja) * | 2015-12-25 | 2018-12-26 | Ｊｆｅスチール株式会社 | 鋼材およびその製造方法 |
-
1986
- 1986-12-24 JP JP31047586A patent/JPS63161117A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63161117A (ja) | 1988-07-04 |
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