JPS57149472A - Removal of return from inner surface of cast iron-made cylinder - Google Patents
Removal of return from inner surface of cast iron-made cylinderInfo
- Publication number
- JPS57149472A JPS57149472A JP3435581A JP3435581A JPS57149472A JP S57149472 A JPS57149472 A JP S57149472A JP 3435581 A JP3435581 A JP 3435581A JP 3435581 A JP3435581 A JP 3435581A JP S57149472 A JPS57149472 A JP S57149472A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- return
- cast iron
- weakened
- amine
- 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
- ing And Chemical Polishing (AREA)
Abstract
PURPOSE: To effectively remove a return formed on the inner surface of a cylinder, by chemically treating a cylinder block whose inner surface is ground, and subjecting the culinder block to ultrasonic vibration.
CONSTITUTION: A cast iron-made cylinder block or liner whose inner surface is ground is dipped in an aqueous nitric acid solution to which an amine-type corrosion inhibitor is added. The amine-type corrosion inhibitor is preferably hexamethylene tetramine, for instance. The inner surface of the cylinder is uniformly etched by this treatment, and a return formed by the grinding work is weakened and embrittled. When ultrasonic vibration is applied to the treated inner surface, the return, weakened by the etching liquid, at the inner surface of the cast iron-made cylinder is fatigued, broken down and separated from the inner surface. At the same time, grind powder adherent to the inner surface is also removed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3435581A JPS57149472A (en) | 1981-03-09 | 1981-03-09 | Removal of return from inner surface of cast iron-made cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3435581A JPS57149472A (en) | 1981-03-09 | 1981-03-09 | Removal of return from inner surface of cast iron-made cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57149472A true JPS57149472A (en) | 1982-09-16 |
JPS6140036B2 JPS6140036B2 (en) | 1986-09-06 |
Family
ID=12411842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3435581A Granted JPS57149472A (en) | 1981-03-09 | 1981-03-09 | Removal of return from inner surface of cast iron-made cylinder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57149472A (en) |
-
1981
- 1981-03-09 JP JP3435581A patent/JPS57149472A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6140036B2 (en) | 1986-09-06 |
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