Hub type diamond ultra-thin cutting sheet for PCB and application thereof

A PCB board and diamond technology, applied in the field of grinding wheels, can solve the problems of diamond edge wear, cutting force reduction, product chipping, etc., and achieve the effect of improving flatness, reducing internal stress, and improving cutting quality

Active Publication Date: 2019-04-16
赛尔科技(如东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The current hub type diamond ultra-thin cutting blade is mainly composed of nickel and diamond. During the cutting process, because the nickel is relatively hard, the diamond is not easy to

Method used

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  • Hub type diamond ultra-thin cutting sheet for PCB and application thereof
  • Hub type diamond ultra-thin cutting sheet for PCB and application thereof
  • Hub type diamond ultra-thin cutting sheet for PCB and application thereof

Examples

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[0043] Example

[0044] 1. Equipped with electroplating solution, the formula is: nickel sulfate 400g / L, nickel chloride 40g / L, boric acid 35g / L, saccharin 0.5g / L, 1,4-butynediol 0.3g / L, and the rest is water.

[0045] 2. Select graphite powder with a particle size of 0.5-2μm, put it in a beaker together with diamond, add the electroplating solution and disperse by ultrasonic wave to obtain a mixed system, where the concentration of graphite powder is 1g / L and the concentration of diamond is 0.2g / L; Then add the aluminum substrate to electroplating at 40°C to obtain electroplated products of diamond ultra-thin cutting discs.

[0046] During electroplating, the method of stirring and sand loading is adopted, and the stirring is followed by high-speed stirring and low-speed stirring to make the graphite powder and diamond evenly distributed in the plating solution to obtain a pearl nickel coating with diamonds, which is electroplated on the prepared aluminum substrate; The rotating s...

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Abstract

The invention discloses a hub type diamond ultra-thin cutting sheet for a PCB and an application thereof. The preparation method comprises the following steps that after graphite powder, diamond and electroplating solution are mixed, ultrasonic dispersion is carried out to obtain a mixing system; an aluminum matrix is added, and electroplating treatment is carried out to obtain a diamond ultra-thin cutting sheet electroplating product; the diamond ultra-thin cutting sheet electroplating product is heated at the temperature of 180-250 DEG C for 2 hours to obtain a diamond ultra-thin cutting sheet forming body; the diamond ultra-thin cutting sheet forming body is subjected to grinding, machining and alkali etching, and the cutting edge is ground to obtain the hub type diamond ultra-thin cutting sheet for the PCB. When the wheel hub type diamond ultra-thin cutting sheet is manufactured, the hardness of the graphite powder is far lower than that of the diamond and the binding agent nickel,the product has higher sharpness during the cutting process, and the product cutting quality is improved; and in particular to a limiting proportion, the excellent cutting effect can be achieved.

Description

technical field [0001] The invention belongs to the grinding wheel technology, and in particular relates to a hub type diamond ultra-thin cutting sheet for a PCB board and an application thereof. Background technique [0002] The current hub type diamond ultra-thin cutting blade is mainly composed of nickel and diamond. During the cutting process, because the nickel is relatively hard, the diamond is not easy to fall off, so after cutting the PCB board for a period of time, the diamond edge wears out. As a result, the cutting force is reduced, and the final cut product has chipping, cracks, and breakage. Contents of the invention [0003] The invention discloses a hub type diamond ultra-thin cutting sheet for PCB boards and an application thereof, which has better cutting quality and higher cutting efficiency. [0004] The present invention adopts following technical scheme: [0005] The wheel hub type diamond ultra-thin cutting sheet for PCB board, its preparation metho...

Claims

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Application Information

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IPC IPC(8): B24D5/12B24D18/00
CPCB24D5/12B24D18/009
Inventor 刘学民陈昱王丽萍冉隆光
Owner 赛尔科技(如东)有限公司
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