Manufacturing method for glass fiber reinforced plastic pressing mould

A technology of pressing mold and production method, applied in the field of glass fiber reinforced plastic pressing mold production, can solve problems such as the inability of steel mold to meet, and achieve the effects of heat insulation performance surface technology, light quality and good surface technology

Inactive Publication Date: 2012-05-02
GUIZHOU HUAYUN AUTOMOBILE DECORATING PART MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the processing of materials with such material characteristics, steel molds cannot satisfy

Method used

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  • Manufacturing method for glass fiber reinforced plastic pressing mould
  • Manufacturing method for glass fiber reinforced plastic pressing mould
  • Manufacturing method for glass fiber reinforced plastic pressing mould

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Experimental program
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Embodiment Construction

[0030] Such as Figure 1-3 Shown, a kind of glass fiber reinforced plastics pressing mold manufacturing method, this mold is by unsaturated polyester resin and glass fiber as the main material of mold, adopts steel as frame fixed mould, and its manufacturing method is:

[0031] 1. Make a wooden or plaster mold (female or male mold) according to the design requirements of the product, and evenly apply the release wax.

[0032] 2. Manually paint the gel coat layer on the waxed mold product. The thickness of the gel coat layer is generally 0.3-0.4mm.

[0033] The gel coat layer needs to be painted twice. The thickness of the first painting is 0.4-0.6mm. After the first layer is cured, the second painting is carried out. The second painting is mainly to make up the gel coat evenly. The thickness of the layer is more uniform, and the thickness is 0.5-0.8mm. Then polish and grind to make the thickness 0.3-0.4mm. The gel coat layer mainly plays the role of beautification and an...

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Abstract

The invention provides a manufacturing method for a glass fiber reinforced plastic pressing mould. Unsaturated polyester resin and glass fibers are used as main materials for the pressing mould, and steel is used as a framework to fix the pressing mould. The manufacturing method comprises the following steps: fabricating a wood mould or a plaster mould according to product design requirements; brushing a gel coating on the waxed mould; pasting alkali-free surfacing mat, with an impregnating compound being an S-904 resin mixture; pasting alkali-free chopped strands of the glass fibers; pasting medium-alkali glass fiber plaid; pasting a plurality of layers of medium-alkali glass fiber plaid, with an impregnating compound being an S-685 resin mixture; pasting a plurality of layers of medium-alkali glass fiber plaid again, with an impregnating compound being an S-191 resin mixture, so as to finish fabrication of the glass fiber reinforced plastic pressing mould. According to needs of the mould, the framework for the mould is welded, flat steel and support are installed, and the glass fiber reinforced plastic pressing mould is fixed on the framework for the mould by using countersink bolts. According to the invention, manufacturing cost for the glass fiber reinforced plastic pressing mould is low, readjusting and remodification of the mould can be carried out, and products capable of satisfying current performance requirements for interior decorative parts for automobiles can be produced.

Description

technical field [0001] The invention relates to the manufacture of a pressing mold, in particular to a method for manufacturing a glass fiber reinforced plastic pressing mold. Background technique [0002] Now all the pressing molds are made by traditional pressing molds. The materials are all steel. There are high cost of mold making and long production cycle. It is not easy to adjust or modify the mold again. At the same time, the pressing produced by steel mold Products, pressed products lack elasticity on the surface. The original traditional steel mold cannot be used to produce products that meet the performance requirements of the current automotive interior parts (mainly the processing of hemp fiberboard and PVC fabric products). Nowadays, people have higher and higher requirements for the product performance of interior parts, and the products must be environmentally friendly, and have high flame retardancy, sound insulation, heat insulation performance and good sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38
Inventor 龚瑞云
Owner GUIZHOU HUAYUN AUTOMOBILE DECORATING PART MFG CO LTD
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