JPS5662924A - Production of chilled material for rolling roll - Google Patents
Production of chilled material for rolling rollInfo
- Publication number
- JPS5662924A JPS5662924A JP13846079A JP13846079A JPS5662924A JP S5662924 A JPS5662924 A JP S5662924A JP 13846079 A JP13846079 A JP 13846079A JP 13846079 A JP13846079 A JP 13846079A JP S5662924 A JPS5662924 A JP S5662924A
- Authority
- JP
- Japan
- Prior art keywords
- chilled material
- roll
- matrix
- produced
- abrasion resistance
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To produce a chilled material of superior abrasion resistance for rolling rolls by die-casting the molten cast iron contg. Ni, Cr and Mo to a roll by means of centrifugal casting then subjecting the same to heat treatment under specific conditions. CONSTITUTION:Molten metal of the low alloy cast iron contg. 2.8-3.5% C, 0.3- 0.9% Si, 0.3-1.2% Mn, 1.5-3.5% Ni, 2.0-5.0% Cr and 0.2-1.0% Mo is cast in dies by centrifugal casting, whereby a roll-like chilled material is produced. This is heated to the temp. to 950-up to 50 deg.C below solidus temp. to be made into two phase structure of cementite +gamma, after which it is quickly cooled down to 450- 550 deg.C by spray water cooling. Next, it is further reheated to 780-860 deg.C, to grain the matrix of the structure, whereby chilled material of superior abrasion resistance having the matrix of high surface hardness and superior toughness for rolling rolls may be produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13846079A JPS5835576B2 (en) | 1979-10-26 | 1979-10-26 | Manufacturing method of chilled material for rolling rolls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13846079A JPS5835576B2 (en) | 1979-10-26 | 1979-10-26 | Manufacturing method of chilled material for rolling rolls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5662924A true JPS5662924A (en) | 1981-05-29 |
| JPS5835576B2 JPS5835576B2 (en) | 1983-08-03 |
Family
ID=15222534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13846079A Expired JPS5835576B2 (en) | 1979-10-26 | 1979-10-26 | Manufacturing method of chilled material for rolling rolls |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835576B2 (en) |
-
1979
- 1979-10-26 JP JP13846079A patent/JPS5835576B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5835576B2 (en) | 1983-08-03 |
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