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Process of making molded tray

A manufacturing method and molding technology, applied in the field of molding products, can solve problems such as unfavorable material balance, heating, and large forest resources

Inactive Publication Date: 2007-06-06
钱峻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the solid wood pallets and wood-based panel spliced ​​pallets used in square yards have the disadvantages of consuming a large amount of forest resources, having diseases and insect pests, and high costs.
The Chinese Invention Patent Application Publication with the application number 200510048717.4 discloses a production process of wood shaving molded pallets, but the temperature process conditions of this process are not conducive to energy saving, and are not conducive to the balanced heating of materials. Its high hot pressing temperature will also cause the cured rubber to age due to overheating, thus affecting the quality of the tray

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The plant material is wood shavings made of wood, the size of which is: length<8-20mm, width<3mm, thickness<1mm. The wood shavings plant raw material is dried to make its water content <3±0.5%, and 15% urea-formaldehyde glue is added and stirred evenly to form a molded material. The upper and lower molds are heated so that they are at a temperature level of 170° C., and the molding material is spread in the heated molding mold. Close the upper and lower molds, apply a pressure of 4.5Mpa for molding, hold the pressure for 4min, and make it into shape.

Embodiment 2

[0023] The plant raw material is bamboo silk made of bamboo, and its size is: length<20-25mm, width<2mm, thickness<1mm. The bamboo silk plant raw material is dried to make its water content <3±0.5%, and 14% urea-formaldehyde glue is added, and stirred evenly to form a molded material. The upper and lower molds were heated so that they were at a temperature level of 165° C., and the molding material was spread in the molding molds. Close the upper and lower molds, and apply a pressure of 6.0Mpa for molding, so that the temperature of the core layer of the material reaches 100°C, and hold the pressure for 5 minutes to form it.

Embodiment 3

[0025] The plant raw material is selected from plant fiber bundles made from plant orange stalks. The raw material of the plant fiber bundle is dried to make the water content <3±0.5%, and 15% urea-formaldehyde glue is added, and stirred evenly to form a molded material. The upper and lower molds were heated so that they were at a temperature level of 150° C., and the molding material was spread in the molding molds. Close the upper and lower molds, apply a pressure of 5.0 MPa for molding, and hold the pressure for 6 minutes to make it shape.

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Abstract

The present invention relates to molded product, and is especially process of making molded tray. The present invention has the molded tray made with tree branches and timber leftover as well as other annual and perennial plant material. The present invention has saving in timber resource, high tray quality, low power consumption and low production cost.

Description

Technical field: [0001] The present invention relates to a method for forming molded articles, in particular to a method for forming molded trays. Background technique: [0002] Pallet is an important logistics tool and a carrier that transforms static goods into dynamic goods, and plays an irreplaceable role in the modern logistics system. [0003] At present, the solid wood pallets and wood-based panel spliced ​​pallets used in square yards have the disadvantages of consuming a large amount of forest resources, having diseases and insect pests, and high costs. The Chinese Invention Patent Application Publication with the application number of 200510048717.4 discloses a production process of wood shaving molded trays, but the temperature and process conditions of the process are not conducive to energy saving, and are not conducive to the balanced heating of materials. Its high hot pressing temperature will also cause the cured rubber to age due to overheating, thereby aff...

Claims

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Application Information

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IPC IPC(8): B27N3/00B27N3/08B27N1/02
Inventor 钱峻
Owner 钱峻
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