A kind of processing method of red film through hole

Abstract

The invention discloses a machining method of a red rubber sheet through hole. The method includes: placing an aluminum sheet on a base plate; fixing a to-be-machined red rubber sheet on the aluminum sheet; smearing lubricant on the surface of the to-be-machined red rubber sheet; placing another aluminum sheet on the to-be-machined red rubber sheet, and smearing lubricant on the aluminum sheet; drilling the through hole on the to-be-machined red rubber sheet; removing residual lubricant on the red rubber sheet. The method has the advantages that the radiation design introducing the aluminum sheets and lubricant is used, radiation of red rubber sheet drilling is improved, modification, caused by excessive heat, of the red rubber sheet can be avoided, and excellent quality of the red rubber sheet through hole can be guaranteed; due to the enhanced radiation capability, excessive heat of the red rubber sheet can be avoided even drilling speed is increased moderately, low drilling efficiency of traditional red rubber sheet drilling is improved, and red rubber sheet drilling efficiency is increased effectively.

Description

technical field [0001] The invention relates to a processing method for a through hole of a red film. Background technique [0002] In the process of PCB board preparation, red film is required for the alignment of the board parts. Since the red film is prone to deterioration at high temperature during drilling, the problem of heat dissipation has become a difficult problem in the production of red film through-holes. Limited by the heat dissipation problem, the quality and efficiency of the through-holes of the red film are low. In addition, when processing small apertures, quality problems such as burrs, burrs, and burnt are prone to appear in the through holes of the red film. [0003] In order to avoid the occurrence of the above-mentioned problems in the prior art, it is usually to switch to low-parameter operations, that is, the feed rate is reduced by 50%. The reduction of feed speed will undoubtedly prolong the drilling time of red film and affect the production p...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a kind of processing method of the through-hole of red film for solving the above-mentioned technical problem, and the through-hole quality that uses this method to make on red film is good, and bad phenomenons such as non-porous ring burr, micropore burnt occur, and the fabrication efficiency of vias is high