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Base plate and preparation method thereof

A backing plate and fiberboard technology, which is applied in the field of backing plates and their preparation, can solve the problems of large drill pin wear, long backing plate preparation time, unfavorable production efficiency, and unfavorable drilling accuracy, so as to improve production efficiency, reduce wear, and save energy. effect of time

Inactive Publication Date: 2020-10-23
烟台柳鑫新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a backing plate and a preparation method thereof, aiming at solving the problem that the hard surface of the existing backing plate causes great wear on the drill pin and is not conducive to improving the control of drilling accuracy. And the long preparation time of the existing backing plate is not conducive to the problem of improving production efficiency

Method used

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  • Base plate and preparation method thereof
  • Base plate and preparation method thereof

Examples

Experimental program
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Embodiment 2

[0045] a. Add 90 parts of melamine resin resin, 5 parts of graphite powder, and 0.5 parts of silane coupling agent, add various materials into the reaction kettle, and mix them uniformly by mechanical stirring at room temperature to obtain melamine Graphite powder adhesive.

[0046] b. Immerse the wood fiber board with a density of 1200g / m2 in the melamine graphite powder adhesive, and bake it for 30s at a temperature of 140°C to remove the solvent in the adhesive to obtain a glue content of 20g / m 2 Double-sided glue-containing wood fiberboard;

[0047] c. Put the double-sided glue-containing wood fiberboard in a fast press, and press it for 6 seconds under the conditions of temperature 180°C and pressure 12Mpa, so that the surface adhesive can be quickly cured, and finally the finished quick-press backing plate is obtained.

Embodiment 3

[0049] a. Add 90 parts of melamine resin, 5 parts of oxidized starch, and 0.5 parts of silane coupling agent, add various materials into the reaction kettle, and mix them uniformly by mechanical stirring at room temperature to obtain melamine Oxidized starch adhesive.

[0050] b. Immerse wood fiberboard with a density of 1200g / m2 in melamine oxidized starch adhesive, bake for 30s at a temperature of 140°C, remove the solvent in the adhesive, and obtain a glue content of 20g / m2 2 Double-sided glue-containing wood fiberboard;

[0051] c. Put the double-sided glue-containing wood fiberboard in a fast press, and press it for 6 seconds under the conditions of temperature 180°C and pressure 12Mpa, so that the surface adhesive can be quickly cured, and finally the finished quick-press backing plate is obtained.

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Abstract

The invention discloses a base plate and a preparation method thereof. The method comprises the steps that mixing 85-95 parts by weight of melamine resin, 5-15 parts by weight of a filler and 0.5-2 parts by weight of a coupling agent to prepare an adhesive; dipping a fiberboard in the adhesive, and baking the fiberboard to obtain a double-sided adhesive-containing fiberboard; and subjecting the double-sided adhesive-containing fiberboard to pressing treatment to obtain the base plate. According to the invention, the performance of the melamine resin is utilized, the amount of the filler is farless than that of the melamine resin, the filler mainly plays a lubricating role, and the filler is added to improve the lubricating property of the surface layer of the base plate, so that the chipremoval problem during drilling of a drill point in the drilling process can be solved, meanwhile, wire wrapping can be inhibited, and the abrasion of the drill point is reduced. Two processes of dipping and pressing are adopted in the process of preparing the base plate, the total duration of the curing process does not exceed 50 s, operation is easy, time is saved, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of backing plates, in particular to a backing plate and a preparation method thereof. Background technique [0002] The backing plate is a material that is placed under the board to be processed when the printed circuit board (referred to as PCB) is mechanically drilled to meet the processing technology requirements. The main functions of the backing plate are: 1. Reduce the burr of the base material drilling hole; 2. Protect the drilling machine table for the drilling process through the PCB board; 3. Reduce the temperature of the drill bit and reduce the wear of the drill bit; 4. Clean part of the drilling dirt on the drill bit; 5. Play its positioning function to a certain extent and improve the drilling accuracy. [0003] Most of the backing boards currently used are made of bleached wood pulp paper or kraft paper impregnated with phenolic resin or urea-formaldehyde resin and other resins through high-temperature...

Claims

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Application Information

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IPC IPC(8): B27K3/52B27K5/04B27K5/00C09J201/00C09J11/04C09J11/06C09J11/08B26F1/16B26D7/00H05K3/00
CPCB26D7/00B26D2007/0012B26F1/16B27K3/52B27K5/007B27K5/04C08K2003/2241C09J11/04C09J11/06C09J11/08C09J201/00H05K3/0008H05K2203/0147C08K13/02C08K3/22C08K5/10C08K3/04C08K5/54C08L3/10
Inventor 刘康杜山山李雪顺丁凯
Owner 烟台柳鑫新材料科技有限公司