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Small stainless steel spring surface cleanliness inspection method is what? - Spring hardware factory
by：Yongqiang
2020-09-19
Small stainless steel spring metal surface coating and organic coating shall meet with solid combination of matrix closely, uniform, requirements.
However, in most cases, the appearance of the coating, such as peeling, blister, or flowering, and local coating, are due to metal coating (
Plating)
Surface is not clean before.
Compared with organic solvent coating, electroplating, anodic oxidation, phosphating, coating with water as solvent, such as stainless steel small spring on metal surface is more sensitive to organic pollution.
Even a single pollutant could also lead to the whole process of failure.
Thus, coating (
Plating)
Before and after the purity of the material surface is very important.
1, the method of visual and optical
can be observed with the naked eye and a magnifying glass or optical microscope bright stainless steel small spring on the surface of the oil. Defect is passive oxide film on the surface of the spring and a thin oil cannot be detected. For spring surface rough and dim, this method seems to be helpless, but can wipe the surface with a clean white cotton, cloth and paper, and then observe its clean to determine whether or not.
2, surface applanation tonometry method
according to the surface of oil pollution on its surface energy, by small stainless steel spring, a series of tests on different surface tension of solution whether penetration to determine the surface energy, and judge the surface cleanliness. If the acetic acid from 80% to 20% water ( V/v) A series of solutions, 99% to 1% ethanol water preparation, surface tension from 24 accordingly. 5 * 10 - 5 n/cm increased to 66. 0 * 10 - 5N/cm。
3, paint,
degreasing agent drops in small stainless steel spring surface, then boil away. If there is no trace, the metal surface is clean. If there is a ring, suggests that there is oil.
4, wetting,
clean stainless steel small spring surface is water, so they can be completely wet by water. When spring surface containing oil, water will not be wet water area. According to the principle of hydrophilicity, except for the most commonly used breathing method and spray method, there are several kinds of detection methods. Because of the metal oxide film is hydrophilic, most methods can't detect whether spring surface oxidation film degradation.
There are many issues that affect leaf spring hardware, which has led to the need of getting specialists trained in certain areas so as to handle all issues that may arise as well as News products that can solve leaf spring hardware problems.
Dongguan Yongqiang spring hardware Co.,Ltd. is a reliable company that offers wonderful . In addition, the company also provides related components to make it more efficient. To know more, go to Yongqiang Spring Hardware.
Once we have a good idea of how News can satisfy customer’s needs, consider whether we should create a skill for their demands.
1, the method of visual and optical
can be observed with the naked eye and a magnifying glass or optical microscope bright stainless steel small spring on the surface of the oil. Defect is passive oxide film on the surface of the spring and a thin oil cannot be detected. For spring surface rough and dim, this method seems to be helpless, but can wipe the surface with a clean white cotton, cloth and paper, and then observe its clean to determine whether or not.
2, surface applanation tonometry method
according to the surface of oil pollution on its surface energy, by small stainless steel spring, a series of tests on different surface tension of solution whether penetration to determine the surface energy, and judge the surface cleanliness. If the acetic acid from 80% to 20% water ( V/v) A series of solutions, 99% to 1% ethanol water preparation, surface tension from 24 accordingly. 5 * 10 - 5 n/cm increased to 66. 0 * 10 - 5N/cm。
3, paint,
degreasing agent drops in small stainless steel spring surface, then boil away. If there is no trace, the metal surface is clean. If there is a ring, suggests that there is oil.
4, wetting,
clean stainless steel small spring surface is water, so they can be completely wet by water. When spring surface containing oil, water will not be wet water area. According to the principle of hydrophilicity, except for the most commonly used breathing method and spray method, there are several kinds of detection methods. Because of the metal oxide film is hydrophilic, most methods can't detect whether spring surface oxidation film degradation.
There are many issues that affect leaf spring hardware, which has led to the need of getting specialists trained in certain areas so as to handle all issues that may arise as well as News products that can solve leaf spring hardware problems.
Dongguan Yongqiang spring hardware Co.,Ltd. is a reliable company that offers wonderful . In addition, the company also provides related components to make it more efficient. To know more, go to Yongqiang Spring Hardware.
Once we have a good idea of how News can satisfy customer’s needs, consider whether we should create a skill for their demands.
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