JPS5686610A - Manufacture of rolling roll - Google Patents
Manufacture of rolling rollInfo
- Publication number
- JPS5686610A JPS5686610A JP16150379A JP16150379A JPS5686610A JP S5686610 A JPS5686610 A JP S5686610A JP 16150379 A JP16150379 A JP 16150379A JP 16150379 A JP16150379 A JP 16150379A JP S5686610 A JPS5686610 A JP S5686610A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- roll
- contact
- rolling roll
- bearing
- 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
-
- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
PURPOSE:To prevent a generation of cracks in the end face of the roll drum, by applying a local heating to the roll in order to improve the wear resistance of a part which allows to contact with the inner race or the bearing. CONSTITUTION:Alocal heating is applied to a rolling roll, especially a collarless rolling roll, by heating its local part, which allows to contact with the inner race or the bearing, with a heat source of a good heat focusing property, like as laser, electric discharge, ion beam and electron beam. For example, the quench hardened part 5 is obtained by heating with five laser beams. This hardened part has an area merely several percentage of the contact area, however, it has an extremely superior wear resistance so that is hardly suffers from the wear troubles; besides, since the locally hardened part is guarded by the surrounding soft and tenacious basic structure, any crack does not generate nor grow further.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16150379A JPS5686610A (en) | 1979-12-14 | 1979-12-14 | Manufacture of rolling roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16150379A JPS5686610A (en) | 1979-12-14 | 1979-12-14 | Manufacture of rolling roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5686610A true JPS5686610A (en) | 1981-07-14 |
Family
ID=15736297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16150379A Pending JPS5686610A (en) | 1979-12-14 | 1979-12-14 | Manufacture of rolling roll |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5686610A (en) |
-
1979
- 1979-12-14 JP JP16150379A patent/JPS5686610A/en active Pending
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