| COLOURING IN HIGH VOLTAGE ELECTRIC FIELD аренда погрузчиков в москве
The Essence of the given method consists in the following. Between negatively charged koronirujushchim the electrode and positively charged electrode which the painted product is, create constant electric field of a high voltage.
The Shattered particles of a paint, getting in the field, receive a negative charge, dvizhutsja on power lines of a field and are besieged by a thin layer on positively charged surface of a product.
Two ways of electrocolouring Are applied.
On the first way - establish electrode grids-frameworks with the thin delays tense on them. To grids the negative potential from direct current sources moves. Painted products dvizhutsja on positively charged and earthed conveyor. The paint is sprayed by a pneumatic spray. Paint particles receive in this case rather small charges and are not completely besieged on a painted surface; there are, thus, paint losses (though and considerably smaller, than at pneumatic colouring). Compressor installation is necessary For colouring by the given way. Therefore the given way has the limited application.
On the second way the negative pole of a source of a current is brought directly to a spray. Particles of the paint submitted to a spray, flow down from its edge, receive a charge enough the big size that provides good (full) dispersion and colouring with insignificant losses of a material.
The Greatest economic benefit gives electrocolouring use in mass or a large-lot production with simultaneous application of thermoradiating drying. Giving of products at this way is carried out by means of the conveyor (pendant, floor) continuous action.
Sections
Advantages
CHashechnye sprays
the Slot-hole electrospray
Chambers for colouring
Suspension brackets
Drawing of coverings by plastic
Mobile electropainting installations
Manual colouring in electric field
Combination of electrocolouring with pneumonic
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