Spring Pogopin stainless steel material penetration detection method

　　Spring Pogopin stainless steel material penetration detection method

　　(1) Spring with a steel wire diameter is greater than 8mm. To. After soaking, the oil will penetrate into cracks and other defects. Sand spraying the soaked spring is performed. After all the oil pollution is removed, check the surface of the spring and identify the cracking spring.

　　(2) fluorescence detection fluorescent detection is suitable for large stainless steel spring and small spring. This method is similar to oil -soaking detection, and only changes the oil to the penetration agent containing fluorescent powder. The fluorescent materials have bright color traces under near ultraviolet irradiation, and it is easy to find cracks or other opening defects. Because the penetrated agent is toxic, it should be protected.

　　(3) It is composed of cleaning solution, osmotic agent and display solution. When using, clean the sarcasion with the cleaning solution, then spray the penetration to the detection site of the spring, wait a moment, wait for the penetration to penetrate into the defect, then use the cleaning solution to clean the surface, and finally spray the display agent to the surface of the spring, that is, that is, the surface of the spring, that is, that is, Can show defects and make visible defects. Generally, the penetration agent is red.

　　(4) The penetration test of stainless steel spring can find defects with a width of 0.01mm, and it is convenient to operate and use. However, the disadvantage is that the efficiency is low, the solution cannot be recycled, and the cost is high. Only the surface defects on the surface can be found.

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