The cause of the welding smoke and dust collecting dust

The cause of the welding smoke and dust collecting dust volt-ampere characteristics before the spark discharge or the power of volt-ampere characteristic, can reflect the welding smoke and dust collecting electrostatic precipitator dust separation, the effect of the dust particles from the gas. Ideally, volt-ampere characteristic curve between the corona onset and the maximum effective power current, the voltage should be larger range, in order to select stable working point, the effective value of voltage and electric current to achieve high. Low working voltage or electric current will cause the electric performance degradation. Dust secondary dust deposition in the dust the dust on the plate if the adhesion force is not enough, easily taken away by the airflow through the electrostatic precipitator, this is the second float in the sky. Due to loss of secondary dust float in the sky of sometimes as high as has 40% ~ 50% of sedimentary dust, secondary dust float in the sky for the following reasons welding smoke and dust collecting dust deposition on dust collecting plate, the charged dust is negative charge, will be obtained by induction and dust collecting plate to suck the same positive charge, the dust was left dust suction effect, so the dust by net power is defined as the difference between attraction and repulsion. If ion flow or dust resistivity is bigger, the net electricity may be suction, if ion flow or less dust resistivity, net power is likely to be the repulsion repulsion force makes the powder production have two young, when large dust ratio resistance, dust and dust collecting pole make dust deposition layer of the voltage drop between the local breakdown and also produce the counter corona to produce secondary dust float in the sky.