JPH0344841B2 - - Google Patents
Info
- Publication number
- JPH0344841B2 JPH0344841B2 JP6528388A JP6528388A JPH0344841B2 JP H0344841 B2 JPH0344841 B2 JP H0344841B2 JP 6528388 A JP6528388 A JP 6528388A JP 6528388 A JP6528388 A JP 6528388A JP H0344841 B2 JPH0344841 B2 JP H0344841B2
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- shaped steel
- structural material
- protrusions
- groove cover
- 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 40
- 239000010959 steel Substances 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 230000002265 prevention Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Sewage (AREA)
- Metal Rolling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6528388A JPH01237002A (ja) | 1988-03-17 | 1988-03-17 | 溝蓋用構造材の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6528388A JPH01237002A (ja) | 1988-03-17 | 1988-03-17 | 溝蓋用構造材の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01237002A JPH01237002A (ja) | 1989-09-21 |
| JPH0344841B2 true JPH0344841B2 (it) | 1991-07-09 |
Family
ID=13282449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6528388A Granted JPH01237002A (ja) | 1988-03-17 | 1988-03-17 | 溝蓋用構造材の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01237002A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826583B2 (ja) * | 1992-01-28 | 1996-03-13 | 日本金属株式会社 | グレーチング |
| JPH0824983B2 (ja) * | 1993-11-29 | 1996-03-13 | 株式会社三葉製作所 | 滑り止め模様つきグレーチングバーとその製造装置 |
| KR100419934B1 (ko) * | 2001-02-13 | 2004-02-25 | 주식회사 상원 | 냉간압연에 의한 그레이팅용 빔의 제조 방법 |
| KR100419933B1 (ko) * | 2001-02-13 | 2004-02-25 | 주식회사 상원 | 그레이팅용 빔의 제조방법 |
-
1988
- 1988-03-17 JP JP6528388A patent/JPH01237002A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01237002A (ja) | 1989-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 17 Free format text: PAYMENT UNTIL: 20080709 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 17 Free format text: PAYMENT UNTIL: 20080709 |