Method for manufacturing copper-iron-based diamond cutter teeth

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...

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