JPS54101743A - Preparation of high strength bolt superior in delayed cracking resisting property - Google Patents
Preparation of high strength bolt superior in delayed cracking resisting propertyInfo
- Publication number
- JPS54101743A JPS54101743A JP861778A JP861778A JPS54101743A JP S54101743 A JPS54101743 A JP S54101743A JP 861778 A JP861778 A JP 861778A JP 861778 A JP861778 A JP 861778A JP S54101743 A JPS54101743 A JP S54101743A
- Authority
- JP
- Japan
- Prior art keywords
- high strength
- strength bolt
- resisting property
- carrying
- superior
- 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.)
- Pending
Links
- 238000005336 cracking Methods 0.000 title abstract 2
- 230000003111 delayed effect Effects 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 238000010622 cold drawing Methods 0.000 abstract 2
- 229910001562 pearlite Inorganic materials 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001240 Maraging steel Inorganic materials 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
PURPOSE:To cheaply obtain the above mentioned high strength bolt, by carrying out hot thread rolling, after carrying out a fixed cold drawing processing of pearlite steel wire rod containing a specific extent carbon. CONSTITUTION:Head part is formed by hot thread rolling using piano wire rod or hard steel wire rod of pearlite steel containing 0.6-0.85% of C after carrying out cold drawing processing being reduction ratio more than about [180-210X C(%)]%. Hereby, high strength bolt is able to cheaply obtain having delayed cracking resisting property being equal to maraging steel and strength more than about 120-130 Kg/mm<2>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP861778A JPS54101743A (en) | 1978-01-28 | 1978-01-28 | Preparation of high strength bolt superior in delayed cracking resisting property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP861778A JPS54101743A (en) | 1978-01-28 | 1978-01-28 | Preparation of high strength bolt superior in delayed cracking resisting property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54101743A true JPS54101743A (en) | 1979-08-10 |
Family
ID=11697899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP861778A Pending JPS54101743A (en) | 1978-01-28 | 1978-01-28 | Preparation of high strength bolt superior in delayed cracking resisting property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54101743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180082553A (en) | 2016-01-20 | 2018-07-18 | 신닛테츠스미킨 카부시키카이샤 | Steel wire and non-corrugated machine parts for non-corrugated machine parts |
| KR20180090884A (en) | 2016-01-15 | 2018-08-13 | 신닛테츠스미킨 카부시키카이샤 | Steel wire and non-corrugated machine parts for non-corrugated machine parts |
-
1978
- 1978-01-28 JP JP861778A patent/JPS54101743A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180090884A (en) | 2016-01-15 | 2018-08-13 | 신닛테츠스미킨 카부시키카이샤 | Steel wire and non-corrugated machine parts for non-corrugated machine parts |
| KR20180082553A (en) | 2016-01-20 | 2018-07-18 | 신닛테츠스미킨 카부시키카이샤 | Steel wire and non-corrugated machine parts for non-corrugated machine parts |
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