Title:
PROCESSING SOLUTION FOR ALUMINUM OR ALUMINUM ALLOY
Document Type and Number:
Japanese Patent JPH04318181
Kind Code:
A
Abstract:
PURPOSE: To provide a processing solution having safety for an aluminum or aluminum alloy having brightness and high corrosion resistance, an aluminum material processed by the processing solution and an aluminum pigment which does not cause corrosion for aluminum even if contained in a water based metallic paint for a long time.
CONSTITUTION: The processing solution pH 5-8 and liquid temp of 70-120°C contains 10mM-1M of an oxidant selected from a group of molybdic acid, tangustic acid, bismuthic acid, nitric acid, perchloric acid and their salts, and 1mM-1M phosphoric acid ion and 1mM-1M alkaline earth metal ion.
Inventors:
ODA MITSUYUKI
MARUOKA KYOICHI
FUKUDA HIDEO
OKUMURA YOSHIAKI
MARUOKA KYOICHI
FUKUDA HIDEO
OKUMURA YOSHIAKI
Application Number:
JP8517891A
Publication Date:
November 09, 1992
Filing Date:
April 17, 1991
Export Citation:
Assignee:
NIPPON PAINT CO LTD
International Classes:
C22C21/00; C09C1/62; C09C1/64; C23F11/00; (IPC1-7): C09C1/64; C22C21/00; C23F11/00
Domestic Patent References:
| JPS5044133A | 1975-04-21 | |||
| JPS5044135A | 1975-04-21 | |||
| JPS5242434A | 1977-04-02 |
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)