What are the production processes and technologies for blow molding products in Dalian?

In the production process, the design and mold manufacturing of blow molded products in Dalian are particularly important. Reasonable product design can improve production efficiency and product quality, while precise mold manufacturing can ensure product accuracy and stability. In addition, the constant temperature and humidity environment during the production process is also a key factor in ensuring the quality of blow molded products.

With the continuous improvement of product performance requirements in various industries, blow molded products will develop towards high-performance direction. Develop and apply new plastic materials with higher strength, heat resistance, corrosion resistance, barrier properties, etc., and adopt advanced blow molding processes and composite technologies to improve the comprehensive performance of blow molded products, meeting the demand for high-performance plastic components in aerospace, new energy vehicles, high-end electronics and other fields.

What are the production processes and technologies for blow molding products in Dalian?

Blow molded products mainly include various plastic bottles, plastic buckets, plastic tubes, plastic films, etc. Blow molding process is achieved by fully melting thermoplastic particles inside a mold under certain temperature conditions, extruding the melted plastic into shape through air pressure, and then cooling and shaping it.

The main technologies involved in blow molding process include the following aspects:

1. Raw material selection: The quality and performance of blow molded products are directly affected by the raw materials. Different types of plastic raw materials have their own characteristics and applicable ranges in blow molding processing, and suitable raw materials need to be selected according to the requirements of the product.

2. Extrusion blow molding: Extrusion blow molding is a commonly used blow molding process, in which the raw materials are first heated and melted in an extruder, then extruded into shape through an extrusion head, and finally cooled by air to obtain the finished product.

3. Molding mold design: The design of molding molds directly affects the quality and shape of blow molded products, and factors such as product structure, color, and size need to be considered. Reasonable mold design can improve production efficiency and product quality.

4. Mold temperature control: The temperature of the mold has a significant impact on the molding speed and surface quality of the product. Reasonable control of the mold temperature can avoid quality problems such as product deformation and bubbles.

5. Air path control: During the blow molding process, plastic needs to be extruded into shape through air pressure. The air path system needs to be designed reasonably to control the size and time of the air pressure to ensure the effectiveness and accuracy of product molding.

Blow molded products have the advantages of lightweight, impact resistance, corrosion resistance, and good transparency, so they have been widely used in daily life. For example, our common mineral water bottles, juice bottles, shampoo bottles, etc. are all blow molded products. Due to its simple manufacturing process, low cost, and high production efficiency, blow molded products have great market potential in the packaging industry.

The reasonable setting and precise control of blow molding process parameters are key links to ensure the quality of blow molding products. Process parameters such as extrusion temperature, extrusion speed, inflation pressure, inflation time, cooling time, etc. can all affect the quality of the preform and the effect of blow molding. In the production process, it is necessary to determine better process parameters through experimentation and optimization based on different plastic materials, product specifications, and mold structures, and strictly control production according to the set parameters. At the same time, advanced process parameter monitoring and control systems should be equipped to monitor and adjust process parameters in real-time, ensuring their stability and accuracy.