How Much Do You Know About The Difference Between Injection Molding And Compression Molding For Fluorine-lined Valve Series

1. Process Flow
The process flow of fluorine-lined valve injection molding and compression molding is significantly different.
1. Fluorine-lined valve injection molding
The process flow of fluorine-lined valve injection molding is: load PTFE particles into the hopper of the injection molding machine and heat them to a molten state through a spiral heater. Then inject the molten PTFE material into the mold, and the fluorine-lined valve can be taken out after cooling and molding. This process flow is efficient and flexible, and is suitable for the production of large quantities of fluorine-lined valves.
2. Lined Valve compression molding
The process flow of fluorine-lined valve compression molding is: load PTFE particles into the preheated mold, and under high pressure, make the PTFE particles reach a molten state, and the heated part of the mold is compacted and attached to the steel or aluminum lining, so that the surface of the lining is covered with a uniform layer of plastic film, that is, the lining is covered. This process flow is more stable than the injection molding process flow, and is suitable for the production of smaller batches of fluorine-lined valves.

2. Cost
The cost of fluorine-lined valve injection molding and compression molding is also different.
1. Fluorine-lined valve injection molding
The cost of fluorine-lined valve injection molding mainly lies in the equipment cost of the injection molding machine and the cost of production materials. Although the injection molding speed is fast, a large injection molding machine is required for the injection molding of larger models of fluorine-lined valves, so the equipment cost is relatively high. The cost of production materials will decrease with the increase in the number of large-scale production.
2. Fluorine-lined valve molding
The cost of fluorine-lined valve molding mainly lies in the cost of mold making and the cost of production materials. Due to the high precision of mold making and the need for customized production, the production cost is relatively high. However, the cost of production materials is relatively low because pre-processed materials can be used.
III. Quality
The production process of fluorine-lined valve injection molding and molding will also affect its product quality.
1. Fluorine-lined valve injection molding
The products produced by fluorine-lined valve injection molding have uniform thickness, thin walls and high strength, and smooth and bright surfaces. At the same time, because of the fast injection molding speed and high production efficiency, it has certain competitive advantages.
2. Fluorine-lined valve molding
The products produced by fluorine-lined valve molding are relatively thick, with smooth internal and external surfaces, and no more plastic residues and cracks. In addition, the products produced by molding have stable quality and high dimensional accuracy, and are suitable for high-quality and high-requirement fluorine-lined valve products.