JPS5758970A - Production of abrasion resistant double rolls - Google Patents
Production of abrasion resistant double rollsInfo
- Publication number
- JPS5758970A JPS5758970A JP13263980A JP13263980A JPS5758970A JP S5758970 A JPS5758970 A JP S5758970A JP 13263980 A JP13263980 A JP 13263980A JP 13263980 A JP13263980 A JP 13263980A JP S5758970 A JPS5758970 A JP S5758970A
- Authority
- JP
- Japan
- Prior art keywords
- rolls
- outside
- inside ring
- cast
- double rolls
- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE:To obtain double rolls of superior abrasion resistant for mills, etc. without the occurrence of roll cracking by centrifugally casting an inside ring material made of cast steel, and casting cast iron of high hardness on the surface of the inside ring material in the state of limiting its outside surface temp. CONSTITUTION:Ordinary cast steel is poured as an inside layer material for an inside ring in a centrifugal casting metal mold, and is solidified by water cooling. The solidified inside ring of the cast steel is installed in the metal mold for the outside layer and when the outside circumferential surface temp. arrives at 950-700 deg.C, the outside layer material of high hardness such as Ni-hard type cast iron or high chromium type dast iron is melt stuck on the surfce of the inside ring, whereby double rolls are cast. According to this method, the melt sticking of the inside and outside layers is good, and the double rolls free from the occurrence of cracking are obtained at a low cost. Since such rolls are highly resistant to abrasion, they reduce the frequency of replacing rolls when used as grinding mills for ore, coal, cement, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13263980A JPS5758970A (en) | 1980-09-24 | 1980-09-24 | Production of abrasion resistant double rolls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13263980A JPS5758970A (en) | 1980-09-24 | 1980-09-24 | Production of abrasion resistant double rolls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5758970A true JPS5758970A (en) | 1982-04-09 |
Family
ID=15086024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13263980A Pending JPS5758970A (en) | 1980-09-24 | 1980-09-24 | Production of abrasion resistant double rolls |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758970A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257963A (en) * | 1984-06-06 | 1985-12-19 | Kawasaki Heavy Ind Ltd | Production of mud pump liner |
| JPS6155948U (en) * | 1984-09-12 | 1986-04-15 |
-
1980
- 1980-09-24 JP JP13263980A patent/JPS5758970A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60257963A (en) * | 1984-06-06 | 1985-12-19 | Kawasaki Heavy Ind Ltd | Production of mud pump liner |
| JPH0235629B2 (en) * | 1984-06-06 | 1990-08-13 | Kawasaki Heavy Ind Ltd | |
| JPS6155948U (en) * | 1984-09-12 | 1986-04-15 | ||
| JPS646921Y2 (en) * | 1984-09-12 | 1989-02-23 |
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