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Imaging liquor for inspection and preparation method

A technology of imaging liquid and collodion liquid, which is applied in the direction of optical testing for defects/defects, etc.

Inactive Publication Date: 2003-09-24
上海远航劳防用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vast majority of penetrant flaw detection agents used in China have not controlled the harmful elements fluorine, chlorine, and sulfur, and only a few have controlled fluorine, chlorine, and sulfur. As for the control of the important harmful element sodium, no relevant reports have been found so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: raw material formula is as follows:

[0034] Order Raw material W%

[0035] ① Methyl formate 60%

[0036] ②Methylcyclohexane 10%

[0037] ③Methyl ethyl ketone 5%

[0038] ④ propanol 6%

[0039] ⑤ Cellulose liquid 8%

[0040] ⑥ Collodion 8%

[0041] ⑦600 silicon oxide 2%

[0042] ⑧ Zinc Oxide 1%

[0043] Its preparation process is as follows:

[0044] ①Screen the raw materials and conduct chemical analysis on the raw materials. The harmful elements fluorine, chlorine, sulfur and sodium contained in each raw material do not exceed 1300PPm before use;

[0045] ②Calculate and weigh the amount of raw materials according to the above formula;

[0046] ③At room temperature, add in order according to the order in the formula table, starting from the second raw material, and wait for the previous raw material to be mixed evenly before adding a raw material until all the raw materials are added;

[0047] 4. purification treatment, adopt qualitative filtratio...

Embodiment 2

[0051] The raw material formula is as follows:

[0052] Order Raw material W%

[0053] ① Methyl formate 20%

[0054] ② Methylcyclohexane 50%

[0055] ③Methyl ethyl ketone 10%

[0056] ④ Propanol 12%

[0057] ⑤ Cellulose liquid 20%

[0058] ⑥ Collodion 18%

[0059] ⑦600 silicon oxide 5%

[0060] ⑧ Zinc Oxide 3%

[0061] The preparation process is the same as in Example 1.

Embodiment 3

[0063] Order Raw material W%

[0064] ① Methyl formate 51%

[0065] ②Methylcyclohexane 11%

[0066] ③Methyl ethyl ketone 6%

[0067] ④ Propanol 8%

[0068] ⑤ Cellulose liquid 9%

[0069] ⑥ Collodion 8%

[0070] ⑦600 silicon oxide 4.5%

[0071] ⑧ Zinc Oxide 2.5%

[0072] This preparation process is with embodiment 1.

[0073] The methylcyclohexane described in the above examples can be replaced by methylcyclohexanone, the zinc oxide can be replaced by titanium oxide, the propanol can be replaced by glycol, and the collodion can be replaced by cellulose fire Cotton substitute, relevant embodiment no longer repeats here.

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Abstract

The present invention relates to an imaging liquor for inspection and is preparation method. Said imaging liquor is formed from methyl formate, methyl cyclohexane, methyl ethyl ketone, acetone, cellulose, liquor, collodion cotton liquor, 600 silicon oxide and zinc oxide, and its preparation method includes the following steps: screening raw material, preparing raw material, dissolving raw material, purification and detection. Its harmful element fluorine, chlorine, sulfur and sodium contents are low. Specially, it is suitable for nondestructive inspection in liquefied natural gas engineering and nuclear power engineering.

Description

Technical field: [0001] The invention relates to penetrant flaw detection on the surface of workpieces, in particular to a flaw detection developing liquid with low content of fluorine, chlorine, sulfur and sodium 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. However, after penetration testing, what sequelae will be left on the workpiece is still little known. No one has done any research on this so far. [0003] Since the development of nuclear power engineering, flaw detection agents (including penetrating fluid, imaging fluid, and cleaning fluid) remain on the surface of workpieces that have been tested and judged to be qualified, which will cause corrosion, leakage, and malignant tumors during futu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/91
Inventor 陈时宗
Owner 上海远航劳防用品有限公司
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