What is the Process of Blow Moulding
What is the Process of Blow Moulding
Blow moulding is a plastic processing technology that uses gas pressure to blow and mold a plastic parison into a hollow product after softening it by heating.
The core steps of the blow molding machine include: making the molten plastic into a tubular parison → placing the parison in the mold → injecting compressed air to expand it to fit the inner wall of the mold → demolding after cooling and shaping.
Blow molding machine are mainly divided into two categories: extrusion blow moulding machine (suitable for bottles, cans, and barrels) and injection blow moulding machine (high precision, suitable for medical bottles, etc.).
Blow molding machines are widely used in the production of hollow plastic products such as beverage bottles, daily chemical packaging, and automobile fuel tanks. They have the characteristics of low cost and strong adaptability, but they have high requirements for mold precision and material fluidity.
The flexibility of the blow molding process makes it the mainstream production method for hollow plastic products, but it is necessary to select the appropriate process branch according to product requirements (precision, material, cost), and optimize mold design and parameter control to balance efficiency and quality.
Why Choose Kingplas Machinery?
Has 30 years blow molding experience. Our blow molding machine portfolio is designed to handle a wide range of thermoplastic materials, including HDPE, PP, PE, PVC, PC, and PETG, for containers ranging from 10ml to 1250L.
- Automatic Extrusion Blow Molding Machines: High-speed continuous extrusion systems (Single/Double Station) for cosmetics, lubricants, and household chemicals.
- Accumulator Head Blow Molding Machine: Robust solutions for large-scale industrial parts, such as 200L drums, IBC tanks, and automotive components.
- Multi-Layer Co-Extrusion Technology: Advanced 2-to-6 layer systems that provide superior barrier properties for agrochemical and fuel tank applications.
- Turnkey Solutions: Integrated production lines including precision mold design and auxiliary equipment.
Contact KingPlas:
Email: [email protected]
Tel/Whatsapp: +86 13862001031
