Not satisfied with the coating effect? Maybe you should check in this respect...

In furniture coating, grinding work is very important, the effect of furniture coating plays a decisive role. Do a good job of polishing, that is, can show excellent paint film effect, but also improve production efficiency. What about water-resistant paint polishing? Let's

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, white blank grinding
remove burrs, oil and other surface contaminants from the surface of the material, so that the surface of the work piece is smooth. Semi-automatic or fully automatic mechanical sanding equipment can be used plus manual sand inspection, or artificial sanding.
1. The use of 240, 320, sandpaper sanding, improve the fineness of the grinding, help to reduce the substrate ribs, perforation problems.
2. Parts such as corners that cannot be sanded when the machinery is polished need to be subsequently polished by hand.
(1) when grinding the corners and corners of the work piece, to master the technology to prevent sand deformation,
(2) special-shaped work pieces, you can use custom molds or use a moderate hardness sponge, gas drum grinding.
, paint film polishing
paint film polishing is to make the coating surface flat, enhance inter-layer adhesion. At the same time, the coating problems arising from the dressing itself and the coating process. Mechanical sanding equipment can be used plus manual sand inspection, or artificial sanding.
1, UV primer polishing: groove treatment grinding recommended 320 sandpaper grinding to flat, UV primer grinding recommended 400 sandpaper heavy sand, no bright spots, no sand wear, sand leakage, etc., process sewing smooth.
2, head degree primer polishing: recommended 320, 400 sandpaper, sand removal work surface wood or particles, sandpaper in the direction of wood grain polishing, no sand wear, no leakage.
3, second-degree primer polishing: 320 to 600 sandpaper, removal of oil slag or particles, paint polishing requirements flat, enhance the adhesion between the lacquer layer, pay attention to check the paint film defects and treatment.
4, the last primer (before the paint spray): with 600 spaper light sand, the product to the overall sanding to no bright spots, no dents, the product transit scars repair again, to ensure that the product smooth and flat, no bottom, clear, touch, scratches, to ensure that the product spray paint effect., due to the substrate material, process requirements, grinding tools and other different, sandpaper for grinding also has different requirements. Select a suitable (thick) sandpaper or sand cloth to polish the white blank surface, can effectively remove the disadvantages affecting the coating, coating can obtain smooth paint, improve the coating and material, coating and coating adhesion between.
sandpaper is larger, the finer the sand grain, the finer the grinding, the less easy it is to sand through the coating. Grinding should follow the direction of wood grain, along the shape of the work piece to polish, to avoid sand marks, sand concave, sand deformation and other phenomena.
every process is critical during the coating process, especially the grinding operation. If the previous grinding process is not properly operated, the substrate does not achieve perfect results to enter the back channel process, the later may cause paint film problems, resulting in non-conforming products.
, sand marks too heavy
the cause of
: 1, sandpaper cross-grade polishing, model is not right.
2, no sand inspection.
3, not completely dry is sanding.
solution:
1, with the corresponding model of sandpaper for construction.
2, with a fine level of sandpaper comprehensive sand inspection, until the sand marks weaken.
3, completely dry and then sanded.
, sand through the
the formation of the
: 1, too much force.
2, repeatedly polished.
solution:
1, primer or finish sand to be finished primer, dot or finish color and finish re-spray.
, grinding is not complete
the cause of
: 1, sanding is uneven.
2, when grinding to steal material, not sand good.
3 leak.
solution: 1, hand sand or machine sand all re-polished.
fourth, cross sand marks
the reason for the formation:
1, not in the direction of wood grain polishing.
solution: 1, with the same type of sandpaper in the direction of wood grain re-polishing and then with a fine level of sandpaper sand inspection.