JPS6465244A - High chromium cast iron composite roll - Google Patents
High chromium cast iron composite rollInfo
- Publication number
- JPS6465244A JPS6465244A JP22017287A JP22017287A JPS6465244A JP S6465244 A JPS6465244 A JP S6465244A JP 22017287 A JP22017287 A JP 22017287A JP 22017287 A JP22017287 A JP 22017287A JP S6465244 A JPS6465244 A JP S6465244A
- Authority
- JP
- Japan
- Prior art keywords
- composite roll
- roll
- subjected
- cast iron
- outer layer
- 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
- 229910052804 chromium Inorganic materials 0.000 title abstract 4
- 239000002131 composite material Substances 0.000 title abstract 4
- 229910001018 Cast iron Inorganic materials 0.000 title abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 239000000463 material Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 229910001566 austenite Inorganic materials 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000005496 tempering Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To improve the reliability on the junction boundaries, the strength of a shaft and the toughness in the titled composite roll by specifying the C and Cr contents of the core and outer layer material independently and welding and bonding both materials by electro-slag remelting. CONSTITUTION:The compsn. of a roll core is composed of, by weight, 0.3-1.0% C, 0.5-5% Cr and other suitable elements. The compsn. of the outer layer material is composed of high Cr cast iron contg. 1.5-3.5% C, 10-25% Cr and other suitable elements. The core and outer layer material are subjected to electro-slag remelting and are welded and bonded. Said composite roll is subjected to induction heating to 950-1,100 deg.C, is converted into austenite and is subjected to a heat treatment in the process composed of quenching, sub-zero treatment and tempering. By this method, the shaft and net part having high strength and toughness are provided to the titled composite roll and in which the range of about >=90 HS is retained to at least about 40mm depth from the surface of the roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22017287A JPS6465244A (en) | 1987-09-04 | 1987-09-04 | High chromium cast iron composite roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22017287A JPS6465244A (en) | 1987-09-04 | 1987-09-04 | High chromium cast iron composite roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6465244A true JPS6465244A (en) | 1989-03-10 |
Family
ID=16747014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22017287A Pending JPS6465244A (en) | 1987-09-04 | 1987-09-04 | High chromium cast iron composite roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6465244A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1004247A5 (en) * | 1989-06-26 | 1992-10-20 | Hitachi Ltd | Working cylinder rolling metal and manufacturing method thereof. |
| CN113355495A (en) * | 2021-05-31 | 2021-09-07 | 东风商用车有限公司 | Conditioning vermicular graphite cast iron, conditioning method of vermicular graphite cast iron and application of conditioning method |
-
1987
- 1987-09-04 JP JP22017287A patent/JPS6465244A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1004247A5 (en) * | 1989-06-26 | 1992-10-20 | Hitachi Ltd | Working cylinder rolling metal and manufacturing method thereof. |
| CN113355495A (en) * | 2021-05-31 | 2021-09-07 | 东风商用车有限公司 | Conditioning vermicular graphite cast iron, conditioning method of vermicular graphite cast iron and application of conditioning method |
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