JPS5617109A - Composite rolling roll made of high alloy - Google Patents
Composite rolling roll made of high alloyInfo
- Publication number
- JPS5617109A JPS5617109A JP9180079A JP9180079A JPS5617109A JP S5617109 A JPS5617109 A JP S5617109A JP 9180079 A JP9180079 A JP 9180079A JP 9180079 A JP9180079 A JP 9180079A JP S5617109 A JPS5617109 A JP S5617109A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- inner shell
- casting
- molten metal
- shell
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE:To reduce the residual stress of the entire roll, and to improve the material quality of the inner shell, by restricting the carbon content of the molten metal of high class cast iron to be poured for casting the inner shell of the roll to a specified carbon equivalent in order to regulate the C and Si contents of the composition of the inner shell after being cast. CONSTITUTION:The carbon equivalent of the molten metal of the high class cast iron to be poured for casting the composite roll's inner shell is regulated to 3.6-4.1. After casting the molten metal, the composition of the inner shell, under the condition that a part of the inner surface of the outer shell diffuses and mingles, is restricted so as to contain 3.35-3.6% C and 1.0-1.4% Si. Even if a thermal stress is added to this composite roll during the roll is working, the stress generated in the inner shell of the roll drum is small, and the troubles like as the breakage of the drum, the peeling of large piece of the outer shell, etc., are reduced. Accordingly, the durable life of the roll is extended, so that the roll becomes desirable as the rolling roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9180079A JPS5617109A (en) | 1979-07-18 | 1979-07-18 | Composite rolling roll made of high alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9180079A JPS5617109A (en) | 1979-07-18 | 1979-07-18 | Composite rolling roll made of high alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5617109A true JPS5617109A (en) | 1981-02-18 |
Family
ID=14036685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9180079A Pending JPS5617109A (en) | 1979-07-18 | 1979-07-18 | Composite rolling roll made of high alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5617109A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6393242B2 (en) * | 1999-06-21 | 2002-05-21 | Bridgestone Corporation | Metal pipe for use in recording apparatus |
| CN111545727A (en) * | 2020-04-26 | 2020-08-18 | 鞍钢重型机械有限责任公司 | Manufacturing method of hot-rolled pickled plate roller |
-
1979
- 1979-07-18 JP JP9180079A patent/JPS5617109A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6393242B2 (en) * | 1999-06-21 | 2002-05-21 | Bridgestone Corporation | Metal pipe for use in recording apparatus |
| CN111545727A (en) * | 2020-04-26 | 2020-08-18 | 鞍钢重型机械有限责任公司 | Manufacturing method of hot-rolled pickled plate roller |
| CN111545727B (en) * | 2020-04-26 | 2021-10-19 | 鞍钢重型机械有限责任公司 | Manufacturing method of hot-rolled pickled plate roller |
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