JPS6434512A - Liner for hot extrusion and its manufacture - Google Patents
Liner for hot extrusion and its manufactureInfo
- Publication number
- JPS6434512A JPS6434512A JP19242987A JP19242987A JPS6434512A JP S6434512 A JPS6434512 A JP S6434512A JP 19242987 A JP19242987 A JP 19242987A JP 19242987 A JP19242987 A JP 19242987A JP S6434512 A JPS6434512 A JP S6434512A
- Authority
- JP
- Japan
- Prior art keywords
- liner
- casting
- hip
- treated
- ingot
- 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
Landscapes
- Extrusion Of Metal (AREA)
Abstract
PURPOSE:To extend the service life of a liner and to reduce manufacturing cost by forming a chilled casting layer on the inner surface of the liner. CONSTITUTION:From a molten steel of a super heat resisting alloy or an austenitic hot tool steel, a hollow ingot is formed by casting. At this time, the ingot is HIP treated to make the cast structure compact under high temp. and high pressure, further, machined to ascertain the chilling of the inner surface of the liner by a test piece. Then, heat treatment and finish machining are performed and the liner 3 is shrinkage fitted inside a tire 2 of a container 1. Because the chilled layer 3a is formed on the surface of inner diameter of the liner 3 by casting and HIP treatment, the service life of the liner 3 is extended. Further, because the liner is HIP treated, heat treated and finishing worked from the cast hollow ingot, the overall manufacturing cost is reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19242987A JPS6434512A (en) | 1987-07-31 | 1987-07-31 | Liner for hot extrusion and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19242987A JPS6434512A (en) | 1987-07-31 | 1987-07-31 | Liner for hot extrusion and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6434512A true JPS6434512A (en) | 1989-02-06 |
Family
ID=16291165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19242987A Pending JPS6434512A (en) | 1987-07-31 | 1987-07-31 | Liner for hot extrusion and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6434512A (en) |
-
1987
- 1987-07-31 JP JP19242987A patent/JPS6434512A/en active Pending
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