In the processing industry and prototype proofing, sand blasting is a very common surface treatment process, such as: silicone mold sand blasting mold knife line, rust prevention, rust prevention; plastic mold factories do fine etching lines; sand blasting oxidation plant Make the entire workpiece more beautiful and hard to see); the prototype factory uses plastic blasting to quickly remove edges, in addition to paint, remove the knife marks for flat milling, etc .; I also often use blasting during the process of making prototypes. Below I will use experience and Internet integration information to share some sandblasting knowledge. Blasting scope: metal derusting, aluminum alloy sandblasting, glass sandblasting (matte effect), plastic sandblasting (removing edges), acrylic sandblasting (matte effect), PC.

Acrylic sandblasting: If the customer requires a lot of fog, glass sandblasting is generally used. If higher requirements are required, white corundum can be selected. If it is not very foggy and transparent, glass beads must be selected. Sometimes you need to add a bit of glass sand to the glass beads to make the spray effect more permeable.

Stainless steel blasting: usually you need to know what stainless steel is, alloy steel particles on polished surfaces, what alloy steel is the stretched surface and the atomized surface of the original sheet, the required roughness, and the surface smoothness is not required, you can choose brown Corundum and white corundum have special requirements and require smoothness. Glass beads and glass sand are selected.

Die-casting: Generally, deburring low-alloy steel. Generally, shot blasting machine low-alloy steel can be used. What is alloy steel? Cast steel balls are used. Shot blasting is used. The surface of the shot has less abrasion and shallow scratches. Mix with steel balls and grit to remove thick surface sludge. If you want to make the sandblasted aluminum whiter (what is high alloy steel), you should consider using high-cost stainless steel pellets and steel wire pellets. If you want to save costs, consider mixing cast steel balls and continuous steel pellets at 8 :2. The steel ball will be washed once every time it is used, and it can also achieve a relatively white effect by sandblasting several times.