Automobile moulding with its metallic luster controlled
A metallic luster and molding technology, which is applied to vehicle parts, crafts for producing decorative surface effects, decorative art, etc., can solve the problems of low weather resistance of resin films, expressing metallic feeling, and difficult control of metallic luster, etc., to achieve Improved corrosion resistance, high uniformity, and uniform appearance
Inactive Publication Date: 2009-11-11
KATAYAMA KOGYO CO LTD
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Problems solved by technology
[0013] In the method of pasting the resin film, if the design surface is a three-dimensional curved surface, or Figure 7 If there is a concave portion at the middle portion 100 of the cross-section of the design surface as shown, the resin film first comes into contact with the convex portions 111a and 111b, so that the resin film tends to wrinkle, and if the film is not stretched, it cannot be pasted uniformly. , In addition, the weather resistance of the resin film is low
[0014] In the method of coating, when the resin part is bonded to the molding, not only is it necessary to cover the parts other than the coating, which is the main reason for the increase in production cost, but also it is difficult to express the metallic feeling by coating.
[0015] In addition, plating treatment is a major cause of cost increase, and there is a problem that it is difficult to control metallic luster
[0016] In Japanese Patent Application Laid-Open No. 2007-125684, a coloring method based on shot blasting is disclosed, but the purpose is also different, and it cannot be applied to moldings for automobiles.
[0017] In Japanese Patent Application Laid-Open No. 2000-282300, a technology of performing electrolytic polishing treatment is disclosed so as to prevent dirt from adhering to a matte finish stainless steel plate. Directly applicable to automotive moldings
Method used
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[0065] picture image 3 As shown, the sash molding 1 attached to the outer surface of the door frame 11 is press-molded, and the resin member 1a is bonded to it, and sandblasting is performed with glass bulbs.
[0066] Before shot peening, the image 3 Whitening was observed at the strong curved portion R shown, but no whitening was observed after the blasting treatment, and the overall appearance was uniform with a satin texture.
[0067] right Figure 4 The water-cut door molding 2 attached to the door panel 12 as shown is roll-formed, and then extruded in a composite manner to obtain a resin member 2a having ribs 2b.
[0068] in this state Figure 4 The shown curved portion R is whitened, but the same blasting process as the above-mentioned window molding was carried out, and the whitening of the curved portion R was not found, and it was finished to a molding with the same design as the window molding 1 .
[0069] exist figure 2 As shown, in the combination panel 3 pa...
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The object of the invention is to provide an automobile moulding with its metallic luster controlled that realizes an enhanced uniformity in the design of appearance of stainless moulding as an automobile entirety and produces a sense of unity for the whole of the moulding. The automobile moulding is characterized in that the metallic luster of stainless material is controlled by providing the surface of stainless moulding material having undergone press forming or roll forming with microscopic asperity.
Description
technical field [0001] The present invention relates to stainless steel moldings used in automobiles, in particular to sandblasting and electrolytic grinding of stainless steel molding blanks to control the metallic luster of the stainless steel moldings for automobiles. Background technique [0002] For automobile exterior parts, moldings formed of stainless steel plates are often used. [0003] For example, around the side windows of a car, like figure 2 As shown, the window frame molding 1, the water-cut door molding 2, the module molding 3, etc. are installed to form the exterior design. [0004] sash moldings for like image 3 (along figure 2 As shown in the cross-sectional end view of the A-A line in ), the molding mounted on the exterior design surface of the door frame has the following problems, that is, the predetermined cross-sectional shape and bending are formed by roll forming or press forming. However, in the case of the stainless steel plate, whitening oc...
Claims
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IPC IPC(8): B60R13/04B44C1/20B44C1/22C25F3/06B60J1/10
Inventor 平井秀则
Owner KATAYAMA KOGYO CO LTD