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Machining process for ceramic ring cutter used for slitting of lithium battery materials

A processing technology, ceramic knife technology, applied in the field of lithium battery slitting ceramic ring knife processing technology, can solve the problems of increased production cost, broken blade, not sharp, etc., to improve the processing accuracy, neat and clean incision, good consistency Effect

Active Publication Date: 2017-02-15
DONGGUAN HONBRO LI BATTERY EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high hardness and fragility of the ceramic material itself, it is prone to breakage and unsharp cutting during processing and production, resulting in an increase in production costs

Method used

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  • Machining process for ceramic ring cutter used for slitting of lithium battery materials
  • Machining process for ceramic ring cutter used for slitting of lithium battery materials
  • Machining process for ceramic ring cutter used for slitting of lithium battery materials

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Embodiment Construction

[0035] A processing technology of a lithium battery slitting ceramic ring cutter, comprising the following steps:

[0036] 1) Molding the ceramic material into an annular green body with a middle hole;

[0037] 2) Carry out continuous electrothermal sintering to the green body, and obtain a ceramic knife blank after cooling down; the continuous electrothermal sintering process includes the first stage of temperature-raising pre-sintering, the second stage of high-temperature sintering and the third stage of temperature-lowering sintering. The pre-sintering temperature rise rate is controlled at 0.3-0.5°C / Min, and when the temperature is increased to 900-980°C, the temperature is kept for 1.8-2.4 hours; the high-temperature sintering is carried out under the premise of temperature rise pre-sintering, and the temperature rise rate is controlled at 1.5-2.5°C / Min, when the temperature is increased to 1570-1650°C, heat preservation for 3.8-5.6 hours; the cooling sintering is carri...

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Abstract

The invention provides a machining process for a ceramic ring cutter used for slitting of lithium battery materials. The machining process comprises the following steps that (1) ceramic materials are mold-pressed into a ring-shaped blank provided with a central hole in a magnetic resonance mode; (2) the blank is subjected to continuous electric heating sintering and then cooled, and a ceramic cutter blank is obtained; (3) the face A is flatly ground for the first time with the allowance of 0.5-0.6 mm reserved; (4) an inner hole of the face B of the ceramic cutter blank is subjected to rough grinding and accurate grinding with the allowance of 0.1-0.2 mm reserved; (5) the face B of the central hole is subjected to accurate grinding and polishing; (6) the face A is subjected to flat grinding for the second time; (7) the face A is polished; (8) the outer circle of the ceramic cutter blank is ground; and (9) the ceramic cutter blank is fastened to an external grinding tool, a diamond molding grinding wheel is fed from top to bottom, the cutter blade is ground from the single side of the ceramic cutter blank, and the ceramic ring cutter used for slitting of lithium battery materials is obtained. According to the machining process for the ceramic ring cutter used for slitting of lithium battery materials, the materials are directly pressed into the ring-shaped blank which is then sintered into the ceramic cutter blank, and the machining efficiency of the ring cutter is improved; and the machining precision is improved through rough grinding with the allowance reserved and appropriate accurate grinding, and the sharpness of the blade of the cutter is guaranteed.

Description

technical field [0001] The invention relates to the technology in the field of ceramic cutter processing, in particular to a processing technology of a lithium battery cutting ceramic ring cutter. Background technique [0002] At present, in the lithium battery industry, the general-purpose cutting tools for continuous automatic slitters are mainly cemented carbide tools. Cemented carbide is sintered tungsten carbide particles and metal cobalt under high temperature and high pressure, so it is commonly known as tungsten steel. It has a series of excellent properties such as high hardness, high strength, good toughness, heat resistance, and corrosion resistance. It is used in today's cutting widely used in processing. In the production of lithium batteries, in the process of slitting copper and aluminum foil with tungsten steel cutters, due to the characteristics of the metal material itself, it will inevitably produce tribostatic effects, making the slit copper and aluminum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00B24B3/36B28B3/02B26D1/00
CPCB24B1/00B24B3/36B26D1/0006B28B3/022
Inventor 喻世民童安南孙建国单军谢文成
Owner DONGGUAN HONBRO LI BATTERY EQUIP TECH
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