JPS5545518A - Forming method of abrasion-resistant layer - Google Patents
Forming method of abrasion-resistant layerInfo
- Publication number
- JPS5545518A JPS5545518A JP11723478A JP11723478A JPS5545518A JP S5545518 A JPS5545518 A JP S5545518A JP 11723478 A JP11723478 A JP 11723478A JP 11723478 A JP11723478 A JP 11723478A JP S5545518 A JPS5545518 A JP S5545518A
- Authority
- JP
- Japan
- Prior art keywords
- portions
- abrasion
- molten metal
- abrasion resistance
- undulations
- 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
Abstract
PURPOSE: To selectively form abrasion-resistant layers on only the desired portions by delaying the freezing of the molten metal of the portions requiring abrasion- resistance of the products at the time of pressure casting light alloy in the product cavity of dies.
CONSTITUTION: Undulations are provided on the surface of the dies corresponding to the portions requiring abrasion resistance of the products and further the die temperature is made higher than other portions, thence light alloy such as Al or other is pressure cast. When the freezing of the molten metal of said portions is delayed intentionally, the unfrozen molten metal in which the silicon, copper, etc. of good abrasion resistance are concentrated in said portions in the final is extruded through pressure casting, whereby the abrasion resistance is formed. Here, mere provision of the foregoing undulations is good but the combined use of the same with temperature differences gives better effect.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11723478A JPS5545518A (en) | 1978-09-22 | 1978-09-22 | Forming method of abrasion-resistant layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11723478A JPS5545518A (en) | 1978-09-22 | 1978-09-22 | Forming method of abrasion-resistant layer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5545518A true JPS5545518A (en) | 1980-03-31 |
Family
ID=14706695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11723478A Pending JPS5545518A (en) | 1978-09-22 | 1978-09-22 | Forming method of abrasion-resistant layer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5545518A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50151651U (en) * | 1974-05-31 | 1975-12-17 | ||
JPS5139065A (en) * | 1974-09-27 | 1976-04-01 | Yokogawa Electric Works Ltd | HONSHITSUANZENBOBAKUSHISUTEMU |
-
1978
- 1978-09-22 JP JP11723478A patent/JPS5545518A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50151651U (en) * | 1974-05-31 | 1975-12-17 | ||
JPS5139065A (en) * | 1974-09-27 | 1976-04-01 | Yokogawa Electric Works Ltd | HONSHITSUANZENBOBAKUSHISUTEMU |
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