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A penetrant flaw detection process

A technology of penetrant flaw detection and technology, which is applied in the field of mold production and processing, can solve the problems of low efficiency of flaw detection and detection, and achieve the effects of improving flaw detection and detection efficiency, saving time, and improving color sensitivity

Active Publication Date: 2021-07-13
HUBEI TRI RING FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing patent number is CN201310078214.6, and the Chinese invention patent titled "Fluorescent Penetrant Flaw Detection Process" discloses a fluorescent penetrant flaw detection process for surface defects of parts, in which the entire system is controlled by a single-chip microcomputer and a PLC. Transported to different operating stations, there are many designed equipment, the operation requires precise control, and the work efficiency of flaw detection is low

Method used

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  • A penetrant flaw detection process

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Effect test

Embodiment 1

[0029] Using the penetrant flaw detection agent prepared above to carry out the penetrant flaw detection process operation, the steps are:

[0030] S1 prepares the penetrating flaw detection agent according to the method of the present invention, and the specific operation is: a, prepare the penetrating agent: add 100 parts of water, 2 parts of rose bengal, 1 part of potassium hydroxide, 5 parts of hydroxypropyl starch phosphate, 2 parts of triethanolamine, fully stirred at room temperature to dissolve all of them to obtain the penetrating agent of the penetrant flaw detection agent; b. Preparation of emulsifier: add 10 parts of milk lark, 20 parts of distilled gasoline at 170-200 ° C, lauric acid in order by weight percentage 20 parts of isopropyl ester, 50 parts of acetone, and 20 parts of methyl benzoate are fully stirred at room temperature to make them all dissolve to obtain an emulsifier for penetrating flaw detection agent; c, preparation of imaging agent: add 100 parts ...

Embodiment 2

[0038] Using the penetrant flaw detection agent prepared above to carry out the penetrant flaw detection process operation, the steps are:

[0039] S1 prepares penetrating flaw detection agent according to the method of the present invention, concrete operation is: a, prepare penetrating agent: add 100 parts of water successively by weight percentage, rose bengal 5 parts, potassium hydroxide 5 parts, hydroxypropyl starch phosphate 10 parts, 5 parts of triethanolamine, fully stirred at room temperature to make it all dissolve to obtain the penetrating agent of the penetrant flaw detection agent; b, preparation of emulsifier: add 15 parts of milk lark, 30 parts of distilled gasoline at 170-200 ° C, lauric acid in order by weight percentage 25 parts of isopropyl ester, 55 parts of acetone, and 25 parts of methyl benzoate are fully stirred at room temperature to make them all dissolve to obtain an emulsifier for penetrant flaw detection agent; c, preparation of imaging agent: add 1...

Embodiment 3

[0047] Using the penetrant flaw detection agent prepared above to carry out the penetrant flaw detection process operation, the steps are:

[0048]S1 prepares penetrating flaw detection agent according to the method of the present invention, concrete operation is: a, prepare penetrating agent: add 100 parts of water successively by weight percentage, 3 parts of rose bengal, 3 parts of potassium hydroxide, 8 parts of hydroxypropyl starch phosphate, 3 parts of triethanolamine, fully stirred at room temperature to make it all dissolve to obtain the penetrating agent of the penetrating flaw detection agent; b. Preparation of emulsifier: add 13 parts of milk lark, 25 parts of distilled gasoline at 170-200 ° C, lauric acid in order by weight percentage 22 parts of isopropyl ester, 52 parts of acetone, and 22 parts of methyl benzoate are fully stirred at room temperature to make them all dissolve to obtain an emulsifier for penetrant flaw detection agent; c, preparation of imaging age...

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Abstract

The present invention provides a penetrant flaw detection process, the steps of which are: S1 pretreatment: cleaning the inspected surface and its vicinity, removing the surface, etc.; S2 penetration: preheating the welded test piece to a certain temperature, The penetrant is sprayed on the surface of the test piece and penetrated for a period of time; S3 emulsification: apply the emulsifier to the tested surface of the test piece; S4 cleaning: wash off the penetrant on the surface of the test piece with water; S5 imaging: spray or spray the developer on the surface of the test piece Coated on the surface of the test piece, there are obvious color display traces formed on the surface; S6 observation: For the coloring method, observe directly with the naked eye, and observe small defects with a 3-10 times magnifying glass. The invention provides a technology for penetrant flaw detection by using a novel penetrant flaw detection agent, which has high flaw detection efficiency, simple operation, no damage to products and high sensitivity.

Description

technical field [0001] The invention relates to the technical field of mold production and processing, in particular to a penetration flaw detection process. Background technique [0002] The processing technology of the mold includes the following steps: gouging → flaw detection (excluding inclusions and cracks) → scanning → preheating the mold → welding → post-weld heat treatment → scanning → grinding → inspection out of the warehouse. Among them, the flaw detection process is the process operation of detecting cracks or defects inside metal materials or components. Commonly used flaw detection methods include: X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, eddy current flaw detection, gamma ray flaw detection and other methods. [0003] The existing patent number is CN201310078214.6, and the Chinese invention patent titled "Fluorescent Penetrant Flaw Detection Process" discloses a fluorescent penetrant flaw de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/91
Inventor 张运军邓庆文武建祥严树锋黄明伟李航丁连军许明坤姚会婷
Owner HUBEI TRI RING FORGING
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