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Common defects and corrective measures of spraying jigs

Time:2024-04-24 Views:

One: Air lines of spraying fixture: Irregular blocks appear on the coating surface, most of which are round, the color is darker than other parts, and the surface is rough.

Reason: The air in the mold is not completely eliminated during forming. Spraying jigs causes the surface density of the material to be inconsistent, resulting in air lines.

Spraying fixture countermeasures:

1. Increase mold thickness or reduce oven temperature.

2. Sanding the air pattern part. It reduces the difference with other parts.

3. Switch to open oil with lower dissolving power

2: Spraying fixture burnt/bite material:

1: There are cracks on the surface, like traces that have not been left by paint after brushing

2: There is a bright print, such as a thimble is shiny and raised.

Reasons for spraying fixtures:

1: The oven temperature is too high.

2: The boiling point of boiling oil and water is too low and there is no time to react.

3: The resin content in the paint is too high.

4: The material is added to the industrial chain with too much nozzle material.

Spraying fixture countermeasures;

1: Reduce the baking temperature and its natural play.

2: Add slow-drying water or replace boiling water with lower solubility.

3: Adjust the paint ratio to increase the resin content.

4: No spout material or less spout material in the material.

Three: The surface of the spraying jig is rough: the surface is rough. The hand feel is not delicate and the surface has small particles of paint.

Reason: The paint concentration is too high.

2: The proportion of the sprocket paint is not suitable, which causes the resin and pigment to not completely dissolve.

3: The spray gun is not adjusted to the best state. (If the air pressure is too high, the oil volume is too small)

4: The product has been reworked too many times. The coating film is too thick.

Countermeasures: 1: reduce paint concentration

2: Reasonably adjust the paint ratio to allow the solvent to completely dissolve.

3: Pay attention to the adjustment of spray gun air pressure, amplitude, and oil volume.

4: For heavy work, the paint should be thinned out.

Quanying Hardware is one of the manufacturers specializing in the production of aluminum alloy jigs, mesh belts, string rods, rollers, coating chains, iron rods, etc. on the dust-free automatic painting line. It has advanced mechanical equipment and first-class technology at home and abroad. Talents, produce more than hundreds of product specifications, and the industries involved include home appliances, electronics, food processing, coating engineering, shoemaking, light industry, cigarette machinery, post and telecommunications, medicine, steel, smelting, mining, building materials, and chemicals. , Motorcycle manufacturing and other mechanical transmission and conveying devices.