Title:
HIGH-SPEED ELECTROLYTIC PICKLING AND POLISHING METHOD
Document Type and Number:
Japanese Patent JPH01165800
Kind Code:
A
Abstract:
PURPOSE:To cause the dissolution of a metal even at the surfaces of cathodes and to efficiently carry out electrolytic pickling and polishing at a high speed by combining electrolytic pickling and polishing by an indirect current supply system with an aq. sulfuric acid soln. contg. nitrate ions as an electrolytic soln. CONSTITUTION:A material 6 to be subjected to electrolysis is travelled in an electrolytic soln. 7 prepd. by adding nitric acid or nitrate to an aq. sulfuric acid soln. and the metal surface of the material 6 to be pickled and polished is dissolved by supplying DC between one or more pairs of anodes 2 and cathodes 3 connected to a DC power source 1 and separated by a partition plate 4 in the soln. 7. At this time, the dissolution of the metal proceeds not only at the surfaces of the anodes but also at the surfaces of the cathodes, so DC is very effectively utilized and electrolytic pickling and polishing can be efficiently carried out at a high speed.
More Like This:
Inventors:
TANO KAZUHIRO
ABE SEISABURO
ABE SEISABURO
Application Number:
JP32367287A
Publication Date:
June 29, 1989
Filing Date:
December 23, 1987
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
C25F7/00; C25F1/06; C25F3/24; (IPC1-7): C25F7/00
Domestic Patent References:
| JPS5313173A | 1978-02-06 |
Attorney, Agent or Firm:
Yoshishima Ning
Previous Patent: METHOD FOR PATTERN-COATING PLATED RESIN PART
Next Patent: INGRESS AND EGRESS DEVICE FOR ELEVATED ROAD
Next Patent: INGRESS AND EGRESS DEVICE FOR ELEVATED ROAD