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Manufacture method for drilled wood cushion board

A manufacturing method and technology for wooden backing boards, applied in the field of wooden backing boards, can solve problems such as burrs, and achieve the effects of improving surface hardness, low formaldehyde emission, and good curing speed

Active Publication Date: 2015-05-20
湖北吉象人造林制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of burrs in existing medium and high density fiberboards when using small-diameter drills, the invention provides a method for manufacturing drilled wood backing boards

Method used

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  • Manufacture method for drilled wood cushion board
  • Manufacture method for drilled wood cushion board
  • Manufacture method for drilled wood cushion board

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[0031]

[0032] (2) Production process

[0033] 1. Extract formaldehyde and put it into the reaction kettle at one time, adjust the pH value to be alkaline, raise the temperature to 40-50°C, and add melamine.

[0034] 2. After raising the temperature to 65°C and keeping it warm for a period of time, add urea once.

[0035] 3. Continue to raise the temperature to 90°C and keep it warm for a period of time, then adjust the pH value to be acidic and carry out polycondensation.

[0036] 4. When the viscosity reaches the production requirement standard, adjust the PH value to be weakly alkaline and lower the temperature, add urea for the second time at 75°C and keep it warm for a period of time.

[0037] 5. After the heat preservation is over, add some kind of modifier and adjust the PH value to be weakly alkaline, lower the temperature to 65°C and add urea for the third time and keep it warm for a period of time.

[0038] 6. Add urea for the fourth time and cool down after th...

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PUM

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Abstract

The invention discloses a manufacture method for a drilled wood cushion board, which comprises the following steps: (1) performing proportioning on wood and adding glue in the proportioned wood; (2) forming fiber board blank after paving the wood in the step (1), and performing forming on the fiber board blank through a hot press; (3) increasing pressure on the hot press; and (4) performing sanding and edge sawing treatment on the fiber board blank in the step (3) to form the wood cushion board. The manufacture method for the drilled wood cushion board improves the density of the board by increasing the glue applying amount of the fiber board blank and adjusting the temperature and the pressure of the press so as to achieve the purpose of improving surface hardness of the fiber board blank. The fiber slab produced through the manufacture method can be used as the drilled wood cushion board in an electronic circuit, and the improvement on technology greatly saves cost.

Description

technical field [0001] The invention belongs to the technical field of wooden backing boards, in particular to a method for manufacturing a drilled wooden backing board. Background technique [0002] During the drilling process of circuit boards in the electronics industry, a backing plate is needed to protect the drill bit. At present, the common backing boards on the market are: white backing board, medium-density drilled wooden backing board, and high-density drilled wooden backing board. Medium Density Drilled Wood Backer Board Suitable for Hole Diameters The advantage of circuit board drilling is that it is economical; it has less wear on the drill bit and prolongs the service life of the drill bit. High Density Drilled Wood Backing Board Suitable for Hole Diameter The advantage of precision circuit board drilling is that it is economical and can partially replace the white backing plate currently used in the market; it has less wear on the drill bit and prolongs t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/04B27N3/12B27N1/02
Inventor 滕桢王飚李照远腾辉
Owner 湖北吉象人造林制品有限公司