Method for supplying membrane onto recessed surface of plastic member and produced wave collector

A technology of wave collectors and composite films, applied in the field of wave collectors

Inactive Publication Date: 2009-01-14
朱明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the convex or flat surface of the part, in the cavity of the plastic molding mold, it is possible to use the injection pressure of the plastic or other molding pressure to stretch the film material to fill the cavity. Therefore, the co

Method used

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  • Method for supplying membrane onto recessed surface of plastic member and produced wave collector
  • Method for supplying membrane onto recessed surface of plastic member and produced wave collector

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Experimental program
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Embodiment Construction

[0016] The method of the present invention is described in detail below:

[0017] The present invention adopts following scheme:

[0018] a. The punch of the forming mold of the plastic part is itself also the punch of the drawing die;

[0019] b. The manufacture of the plastic part includes the following steps:

[0020] 1). Press down on the membrane material:

[0021] The film-type materials used are generally rolled when they leave the factory. After slitting, their area should be slightly larger than the projection surface of the inner concave surface of the compounded part, so that the blank-holder width of the material required for stretching is left. like figure 1 Shown: Before stretching, the flat membrane material 11 is pressed down with a blank holder 12, and the pressure should correspond to the required tension of the stretching material. The material of the blankholder should be able to withstand the temperatures likely to be reached when the plastic is molded...

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PUM

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Abstract

The invention discloses a method for compounding membranous type materials on the concave surfaces of plastic parts and a wave collector manufactured using the method. The plastic die adopted in the method is a stretching die. Before plastic is moulded, edges of flatly spread membranous type materials are held down; the membranous type materials are stretched with a terrace die; subsequently, the plastic is moulded, thus forming concave surfaces compounded with membranous type materials. The collector having the concave surface (including a metallic foil layer) of a paraboloid manufactured by using the method keeps the design advantages of reducing the number of plastic parts, and the metallic reflection layer which is a precondition necessary for the collector.

Description

technical field [0001] The invention relates to wave collectors for collecting electromagnetic waves, such as satellite antennas, radar antennas, and solar cookers. and its production method. Background technique [0002] Composite membrane materials have been successfully applied on the surface of plastic parts. For the convex or flat surface of the part, in the cavity of the plastic molding mold, it is possible to use the injection pressure of the plastic or other molding pressure to stretch the film material to fill the cavity. Therefore, the compound film material on the surface of the plastic part is only It is limited to the convex surface or plane of the part, and the above method cannot be used to realize the composite film material on the plastic part on the concave surface. [0003] The reflection surface of the wave collector is a paraboloid, which is a concave surface. Contents of the invention [0004] The object of the present invention is to provide a met...

Claims

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Application Information

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IPC IPC(8): B29C37/00B29C33/42B32B27/06
Inventor 朱明
Owner 朱明
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