The reason why the salt spray test box can produce salt spray is that the air is compressed by the air compressor to generate gas and then enter the saturated barrel (the temperature in the saturated barrel should be higher than the test temperature in the salt spray test box).
Improper use of the nozzle will also cause the nozzle to break, the main reasons are as follows:
a. Being hit;
b. Spray pressure is too large (normal: 0.07mp-0.17mp);
c. The salt water uses more tap water than impurities to block the nozzle. When the operator unblocks, pierce the nozzle (requires distilled or deionized water);
Because the nozzle has a small aperture and is easy to block, the manufacturer strongly recommends that distilled water or deionized water must be used for the test; and the compressor must be installed with an oil-water separator (when the compressor compresses the air, the water vapor, oil, etc. in the air will also be Bring them together. The function of the oil-water separator is to filter out the oil and water in the air. If there is no oil-water separator, it will cause the phenomenon that oil stains adhere to the nozzle wall). Attention details and cracking reasons for the nozzles of the salt spray test chamber
The bristles of professional makeup brushes are generally divided into animal hair and synthetic hair.
Natural animal wool cloth has complete hair scales, so the hair is soft and saturated with powder, which can make the color uniform and conform to the skin without irritating the skin.
Generally speaking, animal hair is the best material for makeup brush bristles. To be handy to make the makeup beautiful, maybe you only have a set of good tools.
Make-up brushes have gone from the hands of professional stylists to the side of beauty-conscious women. According to the makeup artist, mink hair is the best bristles, soft and moderate in texture.
Goat wool is the most common material of animal hair, soft and durable. The texture of pony hair is softer and more elastic than ordinary horse hair. Artificial wool is harder than animal hair and is suitable for thick cream makeup.
Nylon has the hardest texture and is mostly used as eyelash brush and eyebrow brush.
In addition to the difference in bristles, the brush heads of professional brushes also adopt different sizes and shapes according to the different makeup parts, showing various curved, pointed and oblique or flat brush head shapes. Whether the line and curvature of the brush head is smooth, will affect the effect of makeup, so the shape of the brush head is also an important factor affecting the effect of makeup.
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