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Quality control method for preparing hard alloy roller

A quality control method, hard alloy technology, applied to other manufacturing equipment/tools, mechanical equipment, engine components, etc., can solve problems such as lack of quality control methods

Inactive Publication Date: 2019-05-07
蓬莱市超硬复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, due to the lack of quality control methods, more or less problems will appear in the above three stages, causing great impact and loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention is further described below in conjunction with examples:

[0037] A quality control method for preparing cemented carbide rolls, including the following steps

[0038] 1. The preparation of the mixture: Wet milling of ingredients: According to different grades, add 2% paraffin wax, 8-30% cobalt powder and the balance tungsten carbide powder into the ball mill. The proportion is 300-440kg, and 80-118L wet grinding alcohol is used as The medium is wet-milled with a ball mill for 20-24 hours, and then dried in a spray drying tower; or 2% paraffin wax, 3.6-6.6% cobalt powder, 3.4-4% nickel powder, 0.4% chromium carbide and the balance tungsten carbide powder are added to the ball mill In the medium, the dosage is 300-350kg, 80-118L wet grinding alcohol is used as the medium, after 18-24 hours of wet grinding with a ball mill, then spray drying tower is used for drying; or 2% paraffin wax, 6.5-15.2% cobalt powder, 5.5-15.3 % Nickel powder, 0.1-0.5% tungsten...

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PUM

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Abstract

The invention discloses a quality control method for preparing a hard alloy roller. The quality control method comprises the following steps of firstly, mixture preparing, wherein a spray drying toweris adopted during ingredient wet grinding for drying; secondly, pressing forming, wherein a mixture prepared in the first step is used for pressing, and pressing equipment, a roller mold and pressingconditions are determined; and thirdly, dewaxing sintering, wherein a blank pressed in the second step is used for dewaxing sintering, dewaxing sintering equipment is selected, and sintering conditions are controlled. Rigid and precise quality control is achieved in each step, the production quality of the hard alloy roller is improved, the defective index is reduced, and the production cost is reduced.

Description

Technical field [0001] The invention belongs to the technical field of hard alloy preparation, and mainly relates to a quality control method for preparing hard alloy rolls. Background technique [0002] The production process of cemented carbide generally includes three stages: wet grinding preparation, press forming and dewaxing sintering. Among them, the mixing ratio, conditions and methods of each component of the wet grinding preparation, the selection of equipment for press forming and dewaxing sintering, Mold requirements and technical conditions will affect the qualification rate and production cost of the final product. It is necessary to meet the process requirements of subsequent inspections and the material requirements of the finished product. This directly determines whether the production of cemented carbide rolls is smooth and quality. The key factor of stability. In order to meet the product quality and service life of finished rolls, quality control at each sta...

Claims

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Application Information

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IPC IPC(8): B22F9/04B22F3/03B22F3/10B22F5/00C22C29/08
Inventor 孙浩斌孙积海张华姚海滨赵成亮
Owner 蓬莱市超硬复合材料有限公司
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