JPS56154291A - Repair method for engine block - Google Patents
Repair method for engine blockInfo
- Publication number
- JPS56154291A JPS56154291A JP5668680A JP5668680A JPS56154291A JP S56154291 A JPS56154291 A JP S56154291A JP 5668680 A JP5668680 A JP 5668680A JP 5668680 A JP5668680 A JP 5668680A JP S56154291 A JPS56154291 A JP S56154291A
- Authority
- JP
- Japan
- Prior art keywords
- hearth
- cylinder
- air
- nozzle
- block
- 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
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Arc Welding In General (AREA)
Abstract
PURPOSE: To prevent the degradation in mechanical strength owing to a change in metallic structure by injecting cooling air around a cylinder from an air nozzle.
CONSTITUTION: An air nozzle unit 10 is inserted into a cylinder C, and an engine block B is placed on the hearth 21 of a heater 20, whereby it is heated. When pressure air is supplied from a duct 14 into a nozzle 12 during this heating process, the cooling air ejects from injection holes 11, and the air flows between the cylinder C and the nozzle 12 and surely cools the periphery of the cylinder C to maintain it at low temp. although the skirt part S having a fractured part Z is heated on the hearth 21. After the fractured part has attained the prescribed temp., the block B is removed from the hearth 21, and is repaired by welding. In order to remove the stresses generated in the repair part, the unit 10 is again mounted in the cylinder C, is placed on the hearth 21 and is reheated. In this process, too, the cooling air is supplied. After the heating process, the block B is removed from the hearth 21 and is air-cooled to complete the repair.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5668680A JPS5935712B2 (en) | 1980-04-28 | 1980-04-28 | Engine block repair method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5668680A JPS5935712B2 (en) | 1980-04-28 | 1980-04-28 | Engine block repair method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56154291A true JPS56154291A (en) | 1981-11-28 |
JPS5935712B2 JPS5935712B2 (en) | 1984-08-30 |
Family
ID=13034314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5668680A Expired JPS5935712B2 (en) | 1980-04-28 | 1980-04-28 | Engine block repair method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5935712B2 (en) |
-
1980
- 1980-04-28 JP JP5668680A patent/JPS5935712B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5935712B2 (en) | 1984-08-30 |
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