The electroplated coating on electric heating tubes is inherently non-conductive

The electroplated coating on electric heating tubes is inherently non-conductive

In general, consumers' requirements for decorative surfaces of profiles are often higher than those for non decorative surfaces, and the bite between the profile and the wall can mask some defects. For some special shaped profiles, adjust the position of the fixture in a timely manner to maintain a certain tilt angle at the hanging position of the profile, in order to enhance the stability during operation and facilitate powder adsorption. In addition, for some heavy profiles, when using fixtures in the middle position, the elbow part should have a certain degree of curvature, because when the weight is large, there is a phenomenon similar to tail tilting, which is prone to detachment during operation. The curvature of the fixture can ensure that the profile is in a vertical position, ensuring a smooth production process. In addition, as the number of cycles of use increases, the conductive beam and hanging device will accumulate more and more film. The coating itself is non-conductive and will affect the conductivity of the conductive beam and hanger, thereby affecting the uniform distribution of powder on the surface of the profile. The coating on the conductive beam and hanger should be removed by appropriate methods.

temperature

Various coatings also have an adaptive range for temperature. The increase or decrease in temperature will accelerate or slow down the electrodeposition process, making the coating thicker or thinner. If the paint temperature rises too high and the solvent evaporates too quickly, it is easy to cause the paint liquid to condense and precipitate. In order to keep the paint temperature in a relatively "constant temperature state", a constant temperature device needs to be equipped.

The solid content of the solid paint not only affects the coating quality of the product, but also is a factor affecting the stability of the paint. If the solid content of the paint is too low, its viscosity decreases, which promotes the sedimentation of the paint. Of course, too high a solid content is not enough to be taken, because too high a content can increase the entrainment and loss of the coating after swimming, reducing the utilization rate of the coating and increasing the cost.

During the production process, management personnel must always pay attention to whether the circulation and stirring of the electrophoretic paint solution are good, and whether some instrument pressures (such as filters and ultrafiltration) are normal. Ensure that the paint liquid is circulated 4-6 times per hour, and the bottom paint liquid flow rate is about twice that of the liquid surface paint liquid flow rate. Do not cause the electrophoresis tank to form a mixing dead angle. Do not stop stirring unless otherwise specified.

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