Title:
SURFACE TREATING METHOD FOR LIGHT-METAL CASTINGS AND VEHICLE ALUMINUM WHEEL SURFACE-TREATED BY THE SAME METHOD
Document Type and Number:
WIPO Patent Application WO/2000/043153
Kind Code:
A1
Abstract:
This surface treating method comprises the steps of greatly reducing the resin thickness of a substrate when a light-metal casting, such as an aluminum wheel casting (26), is to be coated with a dry-plated layer, pressurizing molten metal filled into a mold cavity (14) under a predetermined high pressure by an injection plunger (16) in order to provide a metallic luster superior in design, casting a light-metal material by the high pressure casting method, as desired, that presses a predetermined region of the molten metal during the solidification of the molten metal by a pressing pin (22) installed on a mold (12), barrel-finishing the casting surface of the casting of light-metal material cast and formed by fully reducing the size and number of pinholes in the casting surface of the casting, applying a resin coating to the polished surface, and forming a metal or metallic compound layer on the resin coating surface by dry plating, thereby providing a light-metal casting, such as an aluminum wheel, having a lustrous design surface.
Inventors:
Matsui, Mitsuji (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Yoshida, Atsushi (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Yoshida, Atsushi (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Application Number:
PCT/JP2000/000199
Publication Date:
July 27, 2000
Filing Date:
January 18, 2000
Export Citation:
Assignee:
UBE INDUSTRIES, LTD. (12-32, Nishihonmachi 1-chome Ube-shi, Yamaguchi, 755-8633, JP)
Matsui, Mitsuji (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Yoshida, Atsushi (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Matsui, Mitsuji (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
Yoshida, Atsushi (Ube Machinery and Engineering Division, Ube Industries Ltd. 1980, Aza Okinoyam, Oaza Kogushi Ube-shi Yamaguchi, 755-8633, JP)
International Classes:
B22D15/00; B22D17/12; B22D27/11; B22D15/00; B22D17/08; B22D27/00; (IPC1-7): B22D29/00; B60B3/00; C23C14/16; C23C14/20
Attorney, Agent or Firm:
Ishida, Takashi (A. Aoki, Ishida & Associates Toranomon 37 Mori
Bldg. 5-1 Toranomon 3-chome Minato-ku, Tokyo, 105-8423, JP)
Previous Patent: ALLOY FOR SEMI-SOLID CASTING PROCESS
Next Patent: TILE CUTTER WITH GUIDE FENCE AND MITRE FENCE
Next Patent: TILE CUTTER WITH GUIDE FENCE AND MITRE FENCE