In the plastics industry, many companies will consider using blow molding to make hollow products in order to save costs. Compared with injection molding, the cost will be greatly reduced, so the method of plastic blow molding has also developed rapidly. Blow molding products are also widely used, such as the toy industry, packaging industry, electrical industry and other industries.

The factors involved in the plastic blow molding process, such as the position of the mold separation (parting line), the product slope, the product layout, the blow ratio, the fillet, the modified appearance, etc., are factors that mold engineers and blow molding engineers need to consider. Juxinchang's specific analysis is as follows:
1. The position of the parting line. Before opening the mold, the mold engineer needs to carefully consider how to split the mold, which will affect the subsequent product demolding and product appearance;
2. Product slope. All surfaces parallel to the direction of mold movement must have a certain slope, and the slope should make the mold easy to open and convenient for product removal;
3. Check all usage functions. When used as a product, the fewer parts and the less assembly work, the better, because it can reduce the cost of the product;
4. Blowing ratio. During inflation, pay attention to the areas with extremely thin wall thickness. These places may be convex or concave parts. When the ratio of width to depth is too large, vacuum forming can be used to assist;
5. Radius principle. Avoid sharp edges, corners, sudden changes in the surface, and sudden changes in product diameter or wall thickness;
6. The position of inserts, venting grooves, air inlet needles, ejector holes, lettering and labels needs to be carefully considered.
 
In summary, whether it is a small blow molding product or a large blow molding product, the energy and time required before development are not less. The factors that will affect the effect of plastic blow molding processing must be carefully considered to ensure that each blow molding product has a good match in appearance and function.