What blow molding methods will blow mold manufacturers use when producing products?

2023/04/28

Author: MULAN -Plastic Molding Manufacturer

What blow molding methods will blow mold manufacturers use when producing products? Hollow blow molding is a common plastic molding method, such as car seats, mineral water bottles, and even vegetable and fruit molds for children to play. The semi-molten blank (parison) obtained by extrusion or injection molding is placed in molds of various shapes, and compressed air is passed into the tube blank to inflate it so that it clings to the cavity wall , and then the hollow product can be obtained after cooling and demoulding. Although the principle of hollow blow molding is the same, in fact Blow molding manufacturers will choose different blow molding methods according to the differences in product raw materials, demand, output and cost during production. Let's discuss today, what hollow blow molding methods are there? 1. Extrusion blow molding When product precision requirements are low and mass production is required, blow molding mold manufacturers will use extrusion blow molding, which is also a more widely used method for unsupported parison processing. 2. Injection blow molding When producing containers with high precision requirements and no handles, Blow molding mold manufacturers will use injection blow molding, the wall thickness of the product is uniform, the surface is smooth, no post-processing is required, and no waste is generated. 3. Stretch blow molding Stretch blow molding is divided into extrusion stretch blow molding (extrusion stretch blow molding) and injection stretch blow molding (injection stretch blow molding). Since the transparency, impact strength, surface hardness and stiffness of injection stretch blown products are superior to those of extrusion stretch blown products, the injection stretch blown process is widely used. For example, when producing mineral water bottles, beverage bottles and baby bottles, blow mold manufacturers will use injection stretch blowing technology. 4. Multi-layer blow molding For products with high packaging requirements, blow molding mold manufacturers will use multi-layer blow molding, which has good comprehensive performance, but the production is more complicated. Graphics and texts are for learning reference only Proficient in Mold|Blow Molded Products |Blow Mold Manufacturers Since 1998, it is trustworthy.

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