Covering piece for drilling machining

A cover sheet, water-soluble technology, applied in the field of circuit board processing, can solve the problems of high cost, lack of lubrication function, etc., to achieve the effect of improving service life, excellent lubrication effect, and improving the quality of micro-hole processing

Pending Publication Date: 2018-09-18
江苏贺鸿电子有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When drilling holes with aluminum cover sheets, there are high costs and lack of lubricating functions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Covering piece for drilling machining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to be able to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0017] Such as figure 1 As shown, the cover sheet for drilling processing of the present invention includes a substrate layer 1, and the surface of the substrate layer 1 is coated with a water-soluble organic coating 2, and the water-soluble organic coating is polyethylene two. Alcohol organic coating.

[0018] In a preferred embodiment, the molecular weight of polyethylene glycol in the water-soluble organic coating is 1,000 to 30,000.

[0019] In a preferred embodiment, the thickness of the water-soluble organic coating is 10 μm to 200 μm, for example, 10 μm to 100 μm.

[0020] In a preferred embodiment, the substrate layer is kraft paper, white cardboard, gray cardboard or roll paper.

[0021] In a preferred embodiment, the thickness of the substrate layer is 0.05 mm to 2.0 mm, for example, 0.1 mm to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Melting pointaaaaaaaaaa
Login to view more

Abstract

The invention relates to a covering piece for drilling machining. The covering piece comprises a base material layer. A water-soluble organic coating is arranged on the surface of the base material layer and is a polyethylene glycol organic coating. Through the adoption of the covering piece for drilling machining, during drilling, the covering piece is placed on the upper portion of a to-be-drilled line board, and the anti-scratching effect is achieved; the melting point of the adopted water-soluble coating ranges from 30 DEG C to 90 DEG C, when a drilling needle operates at a high speed, thewater-soluble organic coating takes away a large amount of heat through the phase change from a solid state to a liquid state, and therefore the drilling needle is cooled; and the water-soluble organic coating has the excellent lubricating effect, the service life of the drilling needle can be effectively prolonged, and hole wall roughness can be reduced. Thus, according to the covering piece fordrilling machining, the manufacturing cost of a circuit board can be reduced, the micro-hole processing quality of the circuit board can be improved, and the functions of scratching prevention, heatradiation and lubrication can be achieved.

Description

Technical field [0001] The invention relates to the field of circuit board processing, in particular to drilling processing, in particular to a covering sheet for drilling processing. Background technique [0002] At present, when the circuit board is drilled by the general technology, an aluminum sheet is covered on the surface of the circuit board, which can mainly prevent the surface of the circuit board from scratching and heat dissipation. When the aluminum cover sheet is used for drilling, it is expensive and does not have the defect of lubricating function. Summary of the invention [0003] The purpose of the present invention is to overcome the above shortcomings of the prior art, and provide a cover sheet for drilling processing that can reduce the manufacturing cost of the circuit board, improve the quality of the micro-hole processing of the circuit board, and has the functions of scratch resistance, heat dissipation and lubrication. [0004] In order to achieve the abov...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B26F1/16B26D7/00B26D7/08
CPCB26D7/00B26D7/08B26D7/088B26F1/16B26F2210/08
Inventor 刘统发
Owner 江苏贺鸿电子有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap