Title:
CORROSION-RESISTANT MAGNESIUM ALLOY FORGED WHEEL AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2015/152426
Kind Code:
A1
Abstract:
[Problem] To provide a magnesium alloy forged wheel that is extremely lightweight and that achieves improved corrosion resistance such as hot water resistance and rust prevention, and a method for manufacturing this wheel. [Solution] A corrosion-resistant magnesium alloy forged wheel provided with a chemical conversion coating layer formed on the magnesium alloy forged material, the chemical conversion coating layer containing calcium, manganese, and phosphorous, and a primer layer formed on the chemical conversion coating layer, wherein the magnesium alloy forged wheel is characterized in that the magnesium alloy forged material contains magnesium particles having an average crystal particle size of 80 μm or less on the surface, the weight ratio of the adhered amounts of calcium/manganese contained in the chemical conversion coating layer is 0.40 to 0.60, and the primer layer is formed from an epoxy-resin-based primer coating containing an epoxy resin having a weight-average molecular weight of 30,000 or less and containing 5.0 wt.% or less of a rust-preventive pigment.
Inventors:
SONEZAKI HIZASHI (JP)
MATSUMURA TAKEKI (JP)
NAMBA SHINJI (JP)
KAYAMOTO ATSUSHI (JP)
YAO MICHIYASU (JP)
MATSUMURA TAKEKI (JP)
NAMBA SHINJI (JP)
KAYAMOTO ATSUSHI (JP)
YAO MICHIYASU (JP)
Application Number:
PCT/JP2015/060781
Publication Date:
October 08, 2015
Filing Date:
April 06, 2015
Export Citation:
Assignee:
BBS JAPAN CO LTD (JP)
MILLION CHEMICALS CO LTD (JP)
MILLION CHEMICALS CO LTD (JP)
International Classes:
B60B3/00; B05D7/14; B32B15/04; C22F1/00; C23C22/18; C22F1/06
Foreign References:
| JP2003105593A | 2003-04-09 | |||
| JPH11131255A | 1999-05-18 | |||
| JPH08253882A | 1996-10-01 |
Attorney, Agent or Firm:
USHIKI, Mamoru (JP)
牛木 護 (JP)
牛木 護 (JP)
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