The new material is used to improve the aluminum oxide, the aluminum oxide mark and the sign are made. Because the bottom surface is mirror polished and oxidized, the surface is bright and beautiful. It is the most beautiful type of nameplate. The aluminum oxidation nameplate has been using the old technology method for more than 40 years. It requires laborious and time-consuming materials, long production cycle, high labor intensity and backward technology. It has been unable to meet and adapt to the requirements of the new product production cycle, the beautiful and qualified parts and quick sets. . By improving the old process and applying new materials, the alumina nameplate not only maintains the original characteristics, but also greatly shortens the production cycle and greatly increases the survival rate.
The problem is that the aluminum oxide nameplate has been using the old process method for more than 40 years since its establishment. Due to the restructuring of the factory in the past few years, the plating section was disbanded, and the first few steps of the oxidation nameplate were polished, oxidized, and colored. Due to the different manufacturers of each association, each batch of polishing is not smooth enough, or the coloration is uneven, or gray or blue, the scrap rate is as high as 80 ° /., so that the quality of the first three processes is not guaranteed, which wastes materials and Delaying the production cycle has become a bottleneck restricting the aluminum oxide nameplate.
Three reasons to analyze the aluminum oxidation nameplate old process route: spare block material degreasing mechanical polishing anodizing coloring ink silk screen - drying - revision - etching - wiping - punching - cutting shape - spray varnish - dry aluminum material nameplate oxidation polishing It is mechanical polishing. The quality of mechanical polishing has a very large relationship with the speed of the polishing wheel, the choice of polishing wheel and polishing paste. The materials for the polishing wheel are various cotton, fine felt, leather, and the like. Polishing has a rough throw and a fine throw. The polishing made by the nameplate is finely polished. It should be selected with a soft cotton cloth or silk cloth, a small polishing speed and a white polishing paste suitable for aluminum.
The oxidation treatment of aluminum and its aluminum alloys is divided into chemical oxidation and electrochemical oxidation. The aluminum nameplate is mechanically polished using an electrochemical oxidation method.
After the aluminum nameplate is anodized, the oxide film can be dyed into a variety of bright colors. The nameplate is made in black. Before dyeing, the parts must be carefully cleaned with cold water (never wash with hot water), and the dyeing must be carried out immediately after anodizing.
Each of the above three processes is very important. The old process method of processing the blocks returned from each batch is not uneven polishing, forming a stripe shape, resulting in uneven dyeing of the whole plate, or insufficient dyeing blackness, or gray or blue, and the rejection rate is as high as 80%. It wastes materials and delays the production cycle. See the picture below: Solution Under the existing production conditions, that is, the above three processes can not be carried out, how can we produce a beautiful and beautiful oxidation nameplate, through amateur learning and Internet search, contact the manufacturer to find a The black mirror aluminum oxide material of the semi-finished product which has been prepared by the above three processes is covered by a plurality of batches of process tests, and a black oxidized plaque which meets the technical requirements of the drawings is produced.
The process route is as follows: the computer laser draws out the light-painted film negative film; the spare block material removes the protective film ink silk screen dry repair plate etching wipe punching shape spray varnish drying.
Preparation: Prepare according to the requirements of the process and drawings. Be careful not to scratch the surface of the material, and send the block on the shelf.
Uncover the protective film: gently peel off the protective film on the block and carefully put it on the partition.
Ink printing: Screen printing on the block screen with special ink to ensure clear strokes.
Drying: Place the screen printed parts dry for 24 hours.
Revision: The parts of the figure have a missing pinhole and a handwriting stroke with a glued place for revision with a revision pen and a homemade revision knife.
Etching: The stencil block of the repaired version is placed in a prepared etching solution for etching.
Immediately after etching, rinse with running water and put it on the partition.
Wipe: Wipe off the white ink on the block with a clean soft cotton cloth and a special solution. Be careful not to scratch or cover the film.
Punching: Drill holes according to the technical requirements of the drawings, do not scratch the layout, and protect the film.
Cut shape: Cut the shape according to the dimensions of the drawing, do not scratch the layout, and protect the film.
Spray varnish: Spray the front side of the part and keep the paint surface clean and tidy.
Drying: The parts are baked in an oven. The temperature is self-consistent from the use of new oxidized materials and the above-mentioned process routes. Compared with the old process, the process is first reduced, the production cycle is short, and the operation is not difficult. The process route is mature, the handwriting strokes are clear, the surface condition is mirror-like, and the success rate from the preparation of materials to the finished parts is as high as 95%. It can fully meet the technical requirements of users and drawings.
48 screen printing industry
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