In the plastics industry, many companies will consider using blow molding technology to make hollow products in order to save costs. Compared with injection molding, the cost will be greatly reduced, so the blow molding method has also developed rapidly. But in reality, the effect of blow molding is often affected by many factors. Next, the editor of Kunshan Juxinchang Company will summarize it for everyone.

The product range of blow molding is very wide, such as the toy industry, packaging industry, electrical industry and other industries. The position of the mold separation (parting line), product slope, product layout, blow ratio, fillet, modified appearance and other factors involved in the blow molding process are factors that mold engineers and blow molding engineers need to consider.
1. 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 facilitate 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. Blow ratio
During inflation, pay attention to the area with very thin wall thickness and geometry. 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, sudden changes in product diameter or wall thickness;
6. Others
The positions of inserts, exhaust grooves, air inlet needles, ejector holes, lettering and labels should 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 cannot be less. The editor of Kunshan Juxinchang Company reminds everyone to carefully consider the factors that will affect the blow molding process, so that each blow molding product can match the appearance and function well.