一、Brief introduction

Penetrant testing is a commonly used non-destructive testing method, which can directly observe the trace display of surface defects on the workpiece through visual inspection. It is a widely used and reliable testing method. Can be used to detect cracks and defects on the surfaces of almost all non porous materials, including metal and non-metal workpieces.

H-T nuclear grade dye penetrant flaw detection agent combines the advantages of many products at home and abroad. The dye penetrant flaw detection agent used in the new generation of nuclear power projects, which has been carefully developed by experts in the nondestructive testing industry, has been used by the Shanghai Institute of Organic Chemistry of the Chinese Academy of Sciences to process samples according to the RCC-M-Edition 2000, oxygen bomb method, and ion chromatography to determine the content of F, Cl, and S. It has been widely used by users and is very popular. The product has been tested by professional institutions and has very stable performance. It is an ideal dye penetrant flaw detection agent at present.

二、 Technical parameters

三、 Harmful element composition

四、 Usage method

1. Pre cleaning treatment: First, soak the other component being inspected in a container containing cleaning solution and perform ultrasonic cleaning. On the one hand, thoroughly clean the dirt inside the defect of another component to open up the penetration channel of the opening defect; On the other hand, cleaning the surface of the other component allows the penetrant to adhere well to the surface of the other component for sufficient penetration, while effectively preventing contamination by the penetrant.

2. Drying treatment: After pre cleaning, the surface of the other component should be blown dry with compressed air and heated with hot air or infrared radiation to accelerate the drying speed and enhance the penetration strength.

3. Permeation treatment: Soak the dried component in a tank of penetrant solution. Permeation time refers to the sum of soaking time and dripping time; The ambient temperature for the use of this product is 3 ℃ to 50 ℃. Components with special requirements for penetration time need to be tested and determined; Under normal circumstances, the infiltration time should not be less than 15-30 minutes within 3-15 ℃; The infiltration time is 10-25 minutes or more when the temperature is between 15-50 ℃; After penetrating for a certain period of time, extract another component and drip it.

4. Process cleaning treatment: Rinse the dripping parts with deionized water, with a water pressure not exceeding 0.35 megapascals, a water temperature not exceeding 40 ℃, and a distance greater than 300mm; wash with water until it meets the standard, and the shorter the time, the better.

5. Drying treatment: Use compressed air or hot air drying methods, or dry in a hot air circulation box to accelerate the drying speed as much as possible; The drying temperature should not exceed 80 ℃, the hot air temperature should not exceed 40 ℃, and the time should not exceed 5 minutes.

6. Imaging processing: Quickly immerse the dried component into the imaging solution, immediately extract the component, and let it stand still for 5-7 minutes before observing.

7. Inspection: Inspect minor defects under sufficient white light intensity (up to 1000Lux or below), determine the nature of the defects, and make a qualified or rejected conclusion according to the specified acceptance criteria, and issue an inspection report. For uncertain defects, further inspection with a magnifying glass of 5-10 times is required.

8. Post cleaning treatment: It can be cleaned by rinsing with regular tap water or brushing with a brush while rinsing, for better results.

9. Anti corrosion treatment: According to the requirements of another component, if the anti-corrosion requirements are relatively high, the cleaned component should be treated with anti-corrosion treatment.

五、 Block diagram of penetration testing process:

六、 Product Features

◆ Made of Nippon Steel material - ensuring no leakage;

◆ Adopting imported valves and large-scale assembly line production - ensuring no blockage;

◆ Using German dyes and high-grade solvents - sensitivity reaches level 2;

◆ Both water and solvents can be used for cleaning, with no pollution to the skin and less odor;

◆  It is more advantageous to inspect workpieces that come into contact with oil media;

七、 Packaging:

◆ 500ML aerosol cans: 3 cans per set, 8 sets per box

◆ Bulk: 5L plastic drum, 10L plastic drum, 20L plastic drum

This product is:

Mechanical Industry Non destructive Testing Technology Center Tracking Inspection (Device) No Inspection 99-JSZX-010

China Guangdong Nuclear Power Group Suzhou Nuclear Power Research Institute Test Device NDT2000-GJ-001

Tested by Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences

According to RCC-M Edition 2000 edition, the sample was treated with oxygen bomb method, and the content of F, Cl, and S was determined by ion chromatography

八. Implementation criteria:

EJ/T1072-1998

JB/T7523-2010

EN ISO3452.2:2013

GB/T18851.2-2008

ASME2010 SE-165

RCC-M Edition: 2007

吴江市宏达探伤器材有限公司

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