Heat pipe type superhard abrasive material grinding tool

Abstract

The heat pipe type superhard abrasive tool as one kind of abrasive tool includes one grinding head, one pipe union, one grinding head handle and one water jacket. The grinding head serving as the casing of heat pipe has one conic hole as the work cavity of the heat pipe and possesses high heat transferring efficiency. The abrasive tool adopts diamond or CBN with very high heat conducting capacity as the abrasive material has reduced heat resistance between the grinding arc area and the wall of the heat pipe. The cold end of the heat pipe is cooled with the water jacket, so that the work fluid may be liquefied fast, and this is favorable to grinding refractory material with high heat flow density. Adopting heat pipe as the heat conducting element can dissipate heat directly, avoid the heat damage of the superhard abrasive tool and the refractory material, and omit grinding fluid for protecting environment.

Description

technical field [0001] The invention relates to a heat pipe type superhard abrasive abrasive tool, which is especially suitable for the processing field of grinding difficult-to-machine materials with superhard tools using high-temperature brazing superhard abrasives (such as diamond and CBN). Background technique [0002] In the grinding process, especially the grinding process of difficult-to-machine materials, most of the consumed heat is accumulated in the grinding arc area in the form of heat energy, and the difficult-to-machine materials themselves have the characteristics of poor thermal conductivity. If the heat cannot be channeled in time Going out will cause the temperature in the grinding arc area to rise sharply, and will soon cause burns and scrap of superabrasive tools or parts. In order to achieve the purpose of timely cooling, coolant is usually used to cool the arc area during the grinding process, but the coolant that can enter the grinding arc area and act...

AI Technical Summary

Problems solved by technology

[0002] In the grinding process, especially the grinding process of difficult-to-machine materials, most of the consumed heat is accumulated in the grinding arc area in the form of heat energy, and the difficult-to-machine materials themselves have the characteristics of poor thermal conductivity. If the heat cannot be channeled in time If it goes out, the temperature in the grinding arc area will rise sharply, and it will soon cause burns and scrap of superabrasive tools or parts.

In order to achieve the purpose of timely cooling, coolant is usually used to cool the arc area during the grinding process, but the coolant that can enter the grinding arc area and really play a role in heat exchange is only a small proportion, which can neither meet the grinding requirements. The actual needs of cooling in machining are contrary to the requirements of green environmental protection

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