Blow molding product development process introduction

2023/04/24

Author: MULAN -Plastic Molding Manufacturer

The status quo and development trend of blow molding products and the content of the process are described. Blow molding ensures mass and economical production of molded products to meet the increasing needs of people. Blow molding includes: inflating a softened thermoplastic parison to make it cling to the cooling surface of a closed mold, and the inflated parison solidifies to form a hollow plastic product. The surface of blow molded products is smooth and shiny, or after processing In the process, the surface of the product forms engraved or engraved patterns. Blow molding is suitable for most plastics, so it has great advantages in various plastic molding processes. As a new material and a new molding process, the blow molding process will continue to develop and become the future development trend of the plastics industry. Injection blow molding is an engineering technique that involves transforming plastics into useful products that retain their original properties. The important process conditions of injection blow molding are the temperature, pressure and corresponding action time that affect the plasticizing flow and cooling. It mainly analyzes and judges the causes of defects in the current molding products, and provides reference factors in terms of molding machines, molds and raw materials to effectively control the occurrence of defects and reduce production costs. Blow molding product molding is the third largest processing technology widely used in the plastic industry to process various plastic products, accounting for 10% of all plastic product molding processes, other molding processes: extrusion molding accounts for 36%, injection molding accounts for 32%, Calendering accounts for 8%, coating accounts for 5%, compression accounts for 3%, and the rest accounts for 3%. In the United States, there are about 6,000 blow molding machines, 18,000 extruders, and 80,000 injection molding machines in the production and processing of various plastic products. The annual output value of blow molding products reaches 350 million US dollars. Blow molding ensures mass and economical production of molded products to meet the increasing needs of people. The basic process of blow molding includes: inflating the softened thermoplastic parison to make it close to the cooling surface of the mold, and the inflated parison is solidified to form a hollow plastic product. The surface of the blow molded product is smooth and shiny, or the surface of the product is engraved or engraved during processing. Most plastics are suitable for the production of blow molding products, which makes blow molding a great advantage in various plastic molding processes. As a new material and new molding process, blow molding will continue to develop. Become the future development trend of the plastics industry. The correct selection of molding materials involves the following aspects, such as performance requirements, selecting a suitable processing technology, and more importantly, preparing a detailed purchase plan and working procedure. The properties of various plastics vary greatly. For example, some plastics have longer creep resistance, fatigue resistance and toughness. On the contrary, some plastics often need to consider volume and cost issues when using them. Blow-molded products are hitting the traditional material market, especially liquid packaging containers. In the past few decades, people have begun to use PE extrusion bottles to hold liquid detergents, PVC plastics to hold cooking oil and juice with meat, and PET bottles to hold carbonated beverages. Since the advent of various new packaging containers, blow molding has developed rapidly, and its processing technology, characteristics and range of processable materials have all been greatly developed.

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