Color Crystal shade outside diameter of 45 caliber 25MM

Two-step injection blow shade, one-step and two-step injection blow blow molding process difference way: one-step injection blow mold by the same cycle work three upper die, injection molding and blow molding two pieces of the lower mold a total of five die composition, with a runner. Production by injection molding, blow after, shade-step molding process; two-step blow molding, injection molding and blow mold has molding mold composed of two sets, the production, the first injection shade of embryos, embryos and other cooling, manpower placement reheating furnace heating, then manually placed in a blow mold blowing completed. Productivity and loss: one-step injection blow, the entire production process fully automatic, a machine came out second, capacity 6-8K per day, one out of four, 12K or more per day of production capacity, high efficiency, the loss is less than 5%; two-step Blow, the whole process takes manpower to operate, inefficient, the daily production capacity of about 3-5K, and because of manual operation, the process is unstable, the loss rate is higher than 30%. After processing: one-step injection blow after do not involve the processing and, if involved in post-processing, we would advise clients to modify the drawings, in order to the fastest, lowest cost mass production; and two-step molding, blow shade caliber meet The extended part to be cut, and so on, basically involve post-processing, thereby increasing the loss, time costs and labor costs. Quality: one-step injection blow molding injection molding - blow molding step is completed, shade the mirror surface is smooth, stable quality; two-step blow in the production process, injection molding production, embryo outer easy to damp and polluted air, leading to shade produced enough surface bright, a lot of pitting; when re-heated heating furnace, the temperature is difficult to grasp, easy to uneven heating, resulting in uneven thickness lampshade. Thus, for the emerging LED bulb lamp, from all aspects of quality, quantity, unit price and other factors considered, one-step injection blow molding process is the only choice.