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Hard alloy production process

A production process and cemented carbide technology, which is applied in the field of reuse of broken end materials, can solve the problems of cost reduction, cost increase, and cumbersome reuse process of broken end materials, etc., and achieve the effect of reducing cost, fine fracture and saving process.

Inactive Publication Date: 2014-04-02
杭州天石硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] What the present invention aims to solve is the problem that the repeated use process of broken ends is cumbersome, which leads to a substantial increase in cost. It provides a cemented carbide production process, which optimizes the process of cutting ends while ensuring product performance, and greatly reduces costs.

Method used

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Examples

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Embodiment 1

[0020] Example 1, a cemented carbide production process, the specific process steps include (1) preparation of the mixture, the preparation of the mixture includes ① ingredients: uniformly make a mixed solution of tungsten carbide, cobalt and a small amount of rare metals, ② ball milling: put Put the mixed solution into a 300KG ball mill for ball milling, the ball milling medium is n-hexane, the ball milling time is 72 hours to 96 hours, and the ball milling time is at the last 2 hours, add 3.0KG of imported paraffin wax (wax content 1.0%) for ball milling, ③ dry: mix the above The solution (a mixture containing n-hexane, paraffin, and materials) is put into a double-cone drier to dry, and the temperature is raised to 100°C in 4 hours, and kept at 100°C for 1.5-2.0 hours (at this time, n-hexane recovery process), and then cooled to room temperature to obtain Paraffin-containing powder, ④ homogenization and crushing: the homogenizer is actually a crushing device, and the materia...

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PUM

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Abstract

The invention relates to a hard alloy production process, in particular to a method for recycling broken materials generated in the hard alloy extrusion process. The hard alloy production process comprises the specific steps: (1) preparing a mixture: obtaining a powder material through burdening-ball grinding-drying-even crushing; (2) extruding the mixture: obtaining a semi-finished product through mixed pelleting-extruding-natural airing-heating and drying-processing and cutting; (3) sintering; (4) checking a finished product, and implementing the packaging and warehousing. The broken materials are mainly generated in the step (2), and are evenly crushed; then a component is added to implement the mixed pelleting; finally, the subsequent steps of extruding and the like are implemented. The hard alloy production process optimizes the technological process for processing the broken materials during guaranteeing the product performance, and largely reduces the cost.

Description

[0001] technical field [0002] The patent of the present invention relates to a cemented carbide production process, in particular to a method for reusing scraps produced during the cemented carbide extrusion process. Background technique [0003] Cemented carbide has a wide range of uses due to its high hardness and high strength. At present, it is widely used at home and abroad: in the field of difficult-to-machine materials, microelectronics industry, precision molds, CNC machine tools, etc. [0004] Process flow of cemented carbide rods: ingredients (tungsten carbide + cobalt + a small amount of rare metals) → ball milling → powder drying in a double-cone dryer → homogenization and crushing treatment (stainless steel screen 60 mesh) → adding plasticizer and mixing granulation (Plasticizer is imported hexyl cellulose + natan + esolamine) → extruder extrusion (broken material will be generated during extrusion) → heating and drying of the extrusion blank (in order to ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04
Inventor 方敏
Owner 杭州天石硬质合金有限公司
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