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Production technique of saw powder mould products

A molded product and production process technology, which is applied to flat products, wood processing appliances, household components, etc., can solve the problems of time-consuming and labor-intensive process, the quality is greatly affected by human factors, and the production cost is high, so as to achieve the effect of simple process

Inactive Publication Date: 2009-06-10
杨长法
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process, the processes of grinding, polishing, spraying primer, and spraying surface paint are time-consuming and laborious, and the production cost is relatively large. In particular, the quality of grinding and polishing is greatly affected by human factors, and the quality is not easy to guarantee, and dust and noise pollution serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described below according to the embodiments.

[0008] The production process of the embodiment is as follows: after the sawdust powder is dried and mixed evenly with the adhesive, the paper is laid on the bottom of the mold, and then the weighed raw materials are poured in. The mold temperature is 150°C, and the pressure is 2MPa for 4.5min. Carry out compression molding, spray paint on the surface after demoulding, and make the final product.

[0009] The paper is made of ordinary printing paper, the adhesive is the adhesive commonly used in the manufacture of powder plywood, and the mass ratio of sawdust powder to adhesive is: 75% of sawdust and 25% of adhesive.

[0010] Another embodiment adopts the adhesive of following proportioning: (mass ratio)

[0011] Formaldehyde 75%

[0012] Urea 24%

[0013] Hydrogen Dioxide 0.3%

[0014] Ammonium chloride 0.7%

[0015] The materials with the above proportions were reacted at 75°C f...

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PUM

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Abstract

The invention relates to a process for manufacturing a sawdust powder die-pressing product. The process is characterized in that after sawdust powder is dried and mixed with adhesive, a piece of paper is spread on the bottom surface of a die and then raw materials are filled in; the product is formed by heating and die pressing; and finally, paint is sprayed on the surface of the formed sawdust powder die-pressing product. The paper is spread on the bottom surface of the die before die pressing, and the surface of a pressed product is covered with the paper and is smooth, thereby no longer requiring polishing; moreover, because the surface is easy to color up, primer paint does not need to be sprayed and surface paint can be sprayed directly. The process has the advantages of simple process and no pollution.

Description

technical field [0001] The present invention relates to a sawdust powder molded product, which is an improvement of its production process. Background technique [0002] Sawdust powder molded products are made by mixing sawdust powder and adhesive, molding, and finally grinding and polishing. Some products also need to be painted. In the production process, the processes of grinding, polishing, spraying primer, and spraying surface paint are time-consuming and laborious, and the production cost is relatively large. In particular, the quality of grinding and polishing is greatly affected by human factors, and the quality is not easy to guarantee, and dust and noise pollution serious. Contents of the invention [0003] The purpose of the present invention is to provide a production process of sawdust powder molded products that does not require grinding, polishing and primer spraying processes, so as to reduce production costs and pollution. [0004] The solution of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/08
Inventor 杨长法
Owner 杨长法