Automatic heat treatment system for stainless steel shank of micro-drill

A heat treatment system and stainless steel technology, applied in the field of heat treatment, can solve the problems of increased economic cost of printed circuits, difficulty in welding, and inability to perform any heat treatment process.

Active Publication Date: 2016-11-16
JIANGMEN JIANTAO HI TECH
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  • Claims
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Problems solved by technology

[0002] In the printed circuit board manufacturing process, micro-drills are usually used to drill holes on the circuit board to connect the inner layer of the circuit board. The precision of the printed circuit board drilling is high, and the hole position accuracy is within 30 μm; although Using tungsten carbide as the material of the drill, cutting the tungsten carbide into a miniature drill can meet this requirement. Although this kind of drill has better rigidity and hardness, better hole position accuracy and longer service life Long, but because tungsten is a rare metal, the overall manufacturing cost of tungsten carbide cemented carbide is too high, and the drill is a consumable in the printed circuit board process. The use of this drill will significantly increase the economic cost of printed circuit board manufacturing.
[0003] At present, mainstream drill bit manufacturers use stainless steel handles an

Method used

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  • Automatic heat treatment system for stainless steel shank of micro-drill
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  • Automatic heat treatment system for stainless steel shank of micro-drill

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Embodiment Construction

[0018] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the invention can be combined interactively on the premise of not conflicting wi...

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Abstract

Aiming at solving the problems that a solid carbide drill for drilling of a printed circuit board is high in cost, and the drilling quality of a drill formed by welding of a stainless steel shank and tungsten carbide cannot be up to the standard of a solid tungsten carbide drill due to the welding strength, the invention provides an automatic heat treatment system for a stainless steel shank of a micro-drill. The automatic heat treatment system can perform heating, quenching and cleaning treatment on the stainless steel shank, and the treated stainless steel shank is welded with tungsten carbide, so that the welding strength is remarkably improved, and the drilling requirement of the printed circuit board is satisfied.

Description

technical field [0001] The invention relates to the field of heat treatment, in particular to an automatic heat treatment system for a micro-drill stainless steel handle. Background technique [0002] In the printed circuit board manufacturing process, micro-drills are usually used to drill holes on the circuit board to connect the inner layer of the circuit board. The precision of the printed circuit board drilling is high, and the hole position accuracy is within 30 μm; although Using tungsten carbide as the material of the drill, cutting the tungsten carbide into a miniature drill can meet this requirement. Although this kind of drill has better rigidity and hardness, better hole position accuracy and longer service life Long, but because tungsten is a rare metal, the overall manufacturing cost of tungsten carbide cemented carbide is too high, and the drill is a consumable in the printed circuit board process. The use of this drill will significantly increase the economic...

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Application Information

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IPC IPC(8): C21D9/22
CPCC21D1/63C21D1/64C21D9/0062C21D9/22C21D11/00C23G3/00
Inventor 何敏叶小华何强
Owner JIANGMEN JIANTAO HI TECH
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