Drilling lubricant, preparation of drilling lubricant, base plate adopting drilling lubricant and aluminum-based cover plate adopting drilling lubricant

A lubricant and activator technology, which is applied in the field of backing plates and aluminum-based cover plates, can solve the problems of not meeting the production quality requirements, the PCB hole wall is not smooth enough, and has no lubricating effect, so as to achieve good lubrication and smooth hole walls , The effect of reducing the broken drill rate

Active Publication Date: 2014-06-18
FOSHAN SANSHUI YUSN DECORATION IND
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of drilling lubricant and preparation and use of the backing plate and the aluminum base cover plate of the lubricant, aiming at solving the problem that the existing special backing plate for PCB drilling does not have the lubricating effect, which causes the drill pin to break and The PCB hole wall is not smooth enough and has a lot of frizz, which cannot meet the production quality requirements

Method used

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  • Drilling lubricant, preparation of drilling lubricant, base plate adopting drilling lubricant and aluminum-based cover plate adopting drilling lubricant
  • Drilling lubricant, preparation of drilling lubricant, base plate adopting drilling lubricant and aluminum-based cover plate adopting drilling lubricant
  • Drilling lubricant, preparation of drilling lubricant, base plate adopting drilling lubricant and aluminum-based cover plate adopting drilling lubricant

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[0028] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0029] Components and weight percentages thereof that described drilling lubricant comprises are:

[0030] Component A: 20-30 parts;

[0031] Polyethylene glycol: 50-60 parts;

[0032] Non-ionic surfactant: 5-10 parts;

[0033] Thinner: 100-120 parts;

[0034] The components included in the component A and their weight percentages are: p-diisocyanate: 139 parts; polyethylene glycol: 2000 parts; catalyst: 0.2-0.3 parts.

[0035] The polyethylene glycol 2000 in the component A is polyethylene glycol with a molecular weight of 2000.

[0036] The 50-60 parts of polyethylene glycol include polyethylene glycol 6000 and polyethylene glycol 10000, that is, polyethylene glycol with a molecular weight of 6000 and polyethylene glycol with a mol...

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Abstract

The invention discloses a drilling lubricant, a base plate preparing and adopting the lubricant and an aluminum-based cover plate. The lubricant comprises the following components in parts by weight: 20-30 parts of a component A, 50-60 parts of polyethylene glycol, 5-10 parts of nonionic surfactant and 100-120 parts of diluent. The component A comprises the following components in parts by weight: 139 parts of p-phenylene diisocyanate, 2000 parts of polyethylene glycol and 0.2-0.3 part of catalyst. The dried lubricant disclosed by the invention has good lubrication, water solubility, hot melting property and adhesion and is mainly used for producing special base plates and aluminum-based cover plates for drilling holes in PCBs (Printed Circuit Boards).

Description

technical field [0001] The invention relates to a special lubricant, in particular to a drilling lubricant, a backing plate and an aluminum-based cover plate prepared and using the lubricant. Background technique [0002] The production of PCB (Printed Circuit Board) is based on insulating boards, cut to a certain size, with at least one conductive pattern attached to it, and holes (such as component holes, fastening holes, metallized holes, etc.), holes The positioning accuracy has a great influence on the processing quality of PCB. As the diameter of the drill decreases, the positioning accuracy of the hole also decreases. When using a drill with a very small diameter, the positioning accuracy of the drilling must be well controlled. In order to improve the positioning accuracy of PCB holes, it is often necessary to put a layer of cover material (such as an aluminum-based cover) on top of the PCB and a layer of backing plate under the PCB when drilling the PCB. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/00C10M169/04C08G18/48C08G18/22B32B15/20B32B15/095B32B27/12B32B27/40B32B27/10
Inventor 吴旭峰
Owner FOSHAN SANSHUI YUSN DECORATION IND
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