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Quality control method for hard alloy roller inspection process

A quality control method and inspection process technology, which is applied in the direction of testing metals, measuring devices, and specific gravity measurements, can solve the problems of chaotic, random and artificial inspection of cemented carbide rolls, and low reliability of inspection results. High accuracy, perfect rules, and the effect of ensuring production quality

Inactive Publication Date: 2019-03-29
蓬莱市超硬复合材料有限公司
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AI Technical Summary

Problems solved by technology

[0003] But at present, due to the lack of quality control methods, the inspection of cemented carbide rolls is relatively chaotic, random and artificial, resulting in low reliability of the test results

Method used

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Embodiment Construction

[0032] Further describe the present invention below in conjunction with embodiment:

[0033] A quality control method for a cemented carbide roll inspection process, comprising the following steps:

[0034] 1. Appearance inspection of roll blanks: inspect the geometric shape and appearance quality of the products under incandescent lamps, and eliminate various unqualified products;

[0035] (1) Inspection rules: full inspection of roll blanks;

[0036] (2) Check whether the roll grade, model specification, geometric shape, dimensional accuracy and the requirements of the technical standard or the requirements of the drawing are consistent;

[0037] (3) When there is any doubt about the results of linear dimensions such as outer diameter, inner diameter, and height measured with calipers, use a micrometer or a tool microscope to verify;

[0038] (4) For the inspection of the inner diameter and outer diameter of the roll, at least the size of the two diameters perpendicular to...

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Abstract

The invention discloses a quality control method for hard alloy roller inspection process. The method comprises the following steps: roller blank appearance testing; roller large density detection; roller physical and mechanical property testing and metallographic structure testing; and ultrasonic flaw detection testing. According to the quality control method for the hard alloy roller inspectionprocess, each step has strict and accurate quality control; the inspection process is complete; the process is cooperatively evaluated by various testing methods, so that the accuracy of the inspection result is high; the rule is perfect; and the production quality of the hard alloy roller is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of hard alloy preparation, and mainly relates to a quality control method in the inspection process of hard alloy rolls. Background technique [0002] The production process of cemented carbide generally includes three stages: wet grinding and preparation, pressing and molding, and dewaxing and sintering. After the above three stages, the finished product needs to be inspected before leaving the factory. Quality inspection is essential before the cemented carbide roll leaves the factory. In order to meet the product quality and service life of the finished roll, the quality control in the inspection stage is particularly important. [0003] But at present, due to the lack of quality control means, the inspection of cemented carbide rolls is relatively chaotic, random and artificial, resulting in low reliability of the test results. [0004] For this reason, it is very necessary to invent an effective qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/20G01B5/12G01B5/08G01B5/06G01N9/00G01N3/00G01N29/04
CPCG01B5/061G01B5/08G01B5/12G01N3/00G01N9/00G01N29/048G01N33/20
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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