Detection process for high-precision elbow

A high-precision, elbow technology, applied in mechanical thickness measurement, angle/taper measurement, optical test defect/defect, etc., can solve problems such as numerous processes, unreasonable process arrangement, long time, etc., to achieve reasonable process and fast detection , short time effect

Inactive Publication Date: 2019-02-22
遵义市精科信检测有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the existing high-precision elbow detection scheme has unreasonable process arrangements, numerous processes, and a long time, which can no longer meet the requirements and needs to be improved to improve performance.

Method used

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Examples

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with embodiment:

[0012] A detection process for high-precision elbows is characterized in that it includes the following requirements:

[0013] (1) The appearance of the elbow must not have cracks, delamination, wrinkles, overburning and other defects;

[0014] (2) The thinning amount of the elbow wall thickness should be less than 10% of the thickness, and the measured thickness should not be less than the design calculated thickness;

[0015] (3) The ellipticity of the curved part should be less than 1% of the nominal diameter;

[0016] (4) The slope deviation of the two ends of the elbow is less than 1% of the outer diameter of the steel pipe and not greater than 1.5mm;

[0017] The error of the bending angle of the elbow shall not exceed ±1°.

[0018] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in ...

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Abstract

The invention discloses a detection process for a high-precision elbow. The detection process is characterized in that the detection process comprises the following requirements that: (1) the elbow appearance has no defects such as cracks, delamination, wrinkles and over-burning, (2) the elbow wall thickness reduction shall be smaller than 10% of the thickness, and the measured thickness shall notbe smaller than a designed calculation thickness, (3) the ellipticity of a curved portion shall be smaller than 1% of a nominal diameter, (4) the deviation of the slopes of two end faces of the elbowshall be smaller than 1% of the outer diameter of a steel pipe and shall be not larger than 1.5mm, and (5) the bending angle error of the elbow shall not exceed +/-1 degree. The detection process hasthe advantages of reasonable process, low cost, reasonable and coordinated match of various parameters, short time and simple operation.

Description

technical field [0001] The invention relates to a detection process of a high-precision elbow. Background technique [0002] In the pipeline system, the elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are three most commonly used ones: 45°, 90° and 180°. In addition, according to engineering needs, other abnormal angle elbows such as 60° are also included. . However, the existing high-precision elbow detection scheme has unreasonable process arrangement, numerous processes, and long time, which can no longer meet the requirements and needs to be improved to improve performance. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a high-precision elbow detection process with reasonable process, simple operation, short time and low manufacturing cost. [0004] In order to achieve the above object, the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/06G01B5/24G01N21/88
CPCG01B5/06G01B5/24G01N21/88
Inventor 陶远波
Owner 遵义市精科信检测有限公司
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