Flaw detecting cleansing liquid and production thereof

A cleaning solution and solution technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of high content and serious chelation, and achieve the effect of improving detection sensitivity and proper cleaning ability.

Active Publication Date: 2007-03-21
HUDONG ZHONGHUA SHIPBUILDINGGROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a cleaning solution for flaw detection and its preparation method to solve the problem that the existing flaw detection cleaning solution has high content of harmful elements such as fluorine, chlorine, sulfur, sodium, phosphorus and the existing flaw detection cleaning solution is in contact with nickel-based stainless steel. Can create serious chelation problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The composition formula of the cleaning solution for flaw detection is as follows:

[0032] No. Raw material Weight percent (%)

[0033]① Benzyl alcohol 76

[0034] ② Diethylene glycol monobutyl ether 8

[0035] ③ Propanol 5

[0036] ④ Hydrogenated kerosene 8

[0037] ⑤ Fatty alcohol polyoxyethylene ether 1

[0038] ⑥ Alkylbenzenesulfonic acid 2.

[0039] Its preparation method comprises the following steps:

[0040] ①Screen raw materials: select industrially pure or chemically pure raw materials, analyze the content of fluorine, chlorine, sulfur, sodium, and phosphorus in the raw materials, and only use those that do not exceed 1200PPm;

[0041] ② Weighing raw materials: Calculate and weigh each raw material according to the above formula;

[0042] ③Under normal temperature conditions, melt the raw materials, and put them in order according to the order of the raw materials listed above, starting from the second raw material, after the first raw material is full...

Embodiment 2

[0047] The composition formula of the cleaning solution for flaw detection is as follows:

[0048] No. Raw material Weight percentage (%)

[0049] ① Benzyl alcohol 14

[0050] ② Diethylene glycol monobutyl ether 30

[0051] ③ Propanol 25

[0052] ④ Hydrogenated kerosene 22

[0053] ⑤ Fatty alcohol polyoxyethylene ether 4

[0054] ⑥ Alkylbenzenesulfonic acid 5.

[0055] Its preparation method is with embodiment 1.

Embodiment 3

[0057] The composition formula of the cleaning solution for flaw detection is as follows:

[0058] No. Raw material Weight percentage (%)

[0059] ① Benzyl alcohol 45

[0060] ② Diethylene glycol monobutyl ether 18

[0061] ③ Propanol 12

[0062] ④ Hydrogenated kerosene 18

[0063] ⑤ Fatty alcohol polyoxyethylene ether 3

[0064] ⑥ Alkylbenzenesulfonic acid 4.

[0065] Its preparation method is with embodiment 1.

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Abstract

The invention was involved in a method of flow detection using cleaning solution and the preparation of it. The solution contents were: benzoic alcohol, Diethuylene glycol monobutyl ether, ethyl carbinol, hydriding coal oil, fatty alcohol polyoxyethylene ether, alkylbenzenesulfonic acid, the preparation of the detection cleaning solution including the following steps: screening material; batch feeder; solution of the material; purification; examination. The solution has a low level of harmful elements of F, Cl, S, Na, P. It can be used for detection of liquefied natural gas engineering and nuclear power engineering, which has a high detection sensitivity and a great breadth depth ratio.

Description

technical field [0001] The present invention relates to workpiece surface penetrating flaw detection, in particular to a cleaning liquid for flaw detection and a preparation method thereof. Background technique [0002] Since the penetrant test method was developed in 1934, it has become an important means for detecting micro cracks on the surface of workpieces in industrial production. There have been many studies on the technology and equipment of this detection method, but what sequelae this penetration detection will leave on the workpiece will not be detected until the development of special petrochemical and nuclear power projects. The surface of the workpiece judged to be qualified has attracted people's attention because of the residual flaw detection agent (including penetrant, developer, and cleaning fluid), which will cause corrosion, leakage, and malignant accidents during future operation. [0003] The study found that several elements in the penetrant can caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G5/032G01N21/88
Inventor 陈时宗王建喜
Owner HUDONG ZHONGHUA SHIPBUILDINGGROUP
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