Method for manufacturing copper-iron-based diamond cutter teeth

A manufacturing method and funded technology are applied in the manufacturing field of copper-iron-based diamond teeth, which can solve the problems of high cost of diamond teeth, and the drill bit is not sharp and wear-resistant, and achieves the effect of improving high temperature hardness and reducing consumption.

Inactive Publication Date: 2014-11-26
铜陵长江金刚石工具股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the cost of making diamond cutter teeth with cobalt-based elements is high, and the drill bit made of diamond cutter teeth made by other methods does not have the performance of sharpness and wear resistance

Method used

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Embodiment Construction

[0006] The invention relates to a method for manufacturing copper-iron-based diamond cutter teeth, which comprises the following steps: preparing a carcass material with a skeleton material and an adhesive metal, mixing the materials after the preparation, charging the materials for hot pressing after the mixing is completed, heating Cooling after pressing, and machining after cooling (machining refers to sharpening the diamond teeth), wherein the ingredients in the matrix material preparation process include 35% iron powder, 50% copper powder, 5% cobalt powder %, nickel powder 5%, manganese powder 5% (the above are percentages by weight); during the mixing process, diamonds with a weight of 5.04% of the total weight of the matrix material are added, and the mixing is carried out in a stainless steel ball mill. The ratio is 1:2, the rotation speed of the ball mill is 46r / min, and the mixing time is 12~35h; the sintering temperature during hot pressing is 1020°C, the sintering t...

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Abstract

The invention discloses a method for manufacturing copper-iron-based diamond cutter teeth. The method is characterized by including the following steps of preparing green body material through framework material and adhesive metal, mixing the material after preparation, packaging the material after mix so as to be subjected to thermal pressing formation, cooling the material after thermal pressing formation, and machining the material after cooling, wherein the material prepared in the green body material preparation process include, by weight, 35% of iron powder, 50% of copper powder, 5% of cobalt powder, 5% of nickel powder and 5% of manganese powder, diamond accounting for 5.04% of the total weight of the green body material is added in the mixing process, the material is mixed in a stainless steel ball mill, the material to ball ratio is 1:2, the rotation speed of the ball mill is 46 r/min, the material mixing time ranges from 12 hours to 35 hours, the sintering temperature in thermal pressing formation is 1020 DEG C, the sintering time ranges from 5 minutes to 10 minutes, the pressure ranges from 12 Mpa to 13 Mpa, and the tapping temperature is 550 DEG C.

Description

technical field [0001] The invention relates to a method for manufacturing diamond cutter teeth, in particular to a method for manufacturing copper-iron-based diamond cutter teeth. Background technique [0002] In the process of manufacturing diamond teeth on the market, some cemented cutting elements are needed to make diamond binders. The binders are divided into metal binders, resin binders, ceramic binders, etc., which are used in the skeleton materials To the metal carbide, it can improve the toughness and reduce the wear resistance appropriately. In the prior art, in order to obtain the high-temperature hardness of diamond teeth, most manufacturers at home and abroad use cobalt-based elements (50-99% cobalt content) to make them. Due to the special properties of cobalt powder, the sintered matrix has high compactness and sintering properties. Hardness makes the cobalt-based diamond drill bit sharp and durable when cutting diamond concrete, but cobalt element is a rare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/08B22F3/16B22F1/00C22C26/00
Inventor 徐平丁贤龙史万龙都志国尹永法程慧丽
Owner 铜陵长江金刚石工具股份有限公司
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