Prevention of static electricity during spraying is very important
In the paint factory, the air often contains a large amount of flammable gas volatilized by paint, thinner, solvent, etc. Although equipped with ventilation, the exhaust air volume often does not meet the requirements, and these flammable gases may reach the explosion limit. If an electrostatic discharge produces an electric spark, it is very likely to cause a combustion explosion. Especially in the job site, it is inevitable that there will be a lot of paint scattered, and there will be paint scale on the workbench and in the exhaust pipe. If the fire will spread rapidly after the fire.
Since most coatings are based on various flammable solvents, the static electricity generated during spraying is very easy to ignite and detonate the gases of these solvents during discharge. Therefore, how to prevent electrostatic hazards in paint spraying is a problem that cannot be ignored. In order to prevent the fire caused by static electricity accumulation, the spray gun should be equipped with a device to eliminate static electricity, such as a good grounding device; the operator should wear anti-static shoes with a resistance of 105 ~ 108 Ω; absolutely can not wear insulated work shoes; spray non-metallic workpieces When the continuous spraying time should not exceed one and a half minutes. The ventilation workshop should be well ventilated to reduce the accumulation of flammable gases in the air; the scattered paint should be removed frequently. Under the premise of not affecting the quality, water can be sprayed in the spraying workshop to increase the indoor air humidity and also reduce the accumulation of static electricity. The amount of paint stored in the workshop should not be too much, and generally should not exceed the usage of one shift.