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Silicone products began to be used in more and more fields. It is because of its non-toxic, tasteless and high temperature resistance that silicone is used in many fields. The production process of different silicone products is also different. Now let MELON silicone mold manufacturer show you the details.
Silicone Products Manufacturing Process
1. Compression Molding
Silicone products began to be used in more and more fields. It is because of its non-toxic, tasteless and high temperature resistance that silicone is used in many fields. The production process of different silicone products is also different.
Compression molding, this production process is the most common. It is mainly completed by the cooperation of the mold, and the shape of the mold determines the shape of the silicone product. Molded silicone products are usually molded by high temperature mold, after putting in the solid silicone raw material with vulcanizing agent, applying pressure through the vulcanizing machine, and then vulcanizing at high temperature. The hardness of molded silicone is usually between 30 ° C and 70 ° C. This manufacturing process is relatively simple and suitable for all silicone products.
The advantages of using the compression molding process are as follows:
a. Economic method for short-term or start-up production operation.
b. Low and medium productivity.
c. Suitable for mass production.
d. It can accommodate small parts and larger or more complex shapes.
e. Less waste of raw materials.
Type of Silicone products: Washer, seal, O-ring, valve, auto parts
2. Injection Molding
This process is a combination of silicone and plastic, which requires high quality. Its products show good thermal stability, cold resistance, excellent electrical insulation performance, no toxic substances when burning. Therefore, it has become an irreplaceable material in the production design of health products, automobiles, diving products, kitchen utensils and seals.
The advantages of using the injection molding process are as follows:
a. Adapt to high yield production.
b. Multiple materials can be used at the same time.
c. It can be automated.
d. The price of single piece production is low.
e. Short molding cycle.
f. No bottle embryo preparation is required.
g. Correct mold design does not require trimming.
h. Very suitable for products requiring close dimensional tolerance or uniformity.
Type of Products: Small parts, auto parts, swimming supplies, kitchen appliances
3. Extrusion Molding
Extrusion molding, extrusion silicone products are usually formed by extrusion machine. Generally, the shape of extruded silicone is long and tubular, which can be cut at will. The shape of products made by extrusion technology is relatively single, mostly strip. Silicone tube is widely used in medical and mechanical equipment. It can also be used as a buffer in packaging materials.
The advantages of using extrusion process are as follows:
a. Low cost materials can be used.
b. The cost of the mould is lower than that of the forming process.
c. Mass production.
d. Short delivery time.
Type of Products: Gasket, sealing strip, oil pipe, wire insulation
4. Liquid Injection Molding
The purpose of liquid injection is to produce the product material in the cavity. The process is realized by using liquid material through the nozzle in the mold cavity. The raw material is forced into a closed heating chamber under pressure, and the raw material is in the form of a heating chamber. The mixture of raw materials is distributed and distributed through a series of plungers. A plunger contains a base material that can be reinforced with additives and fibers. The other plunger contains a catalyst compound that will activate the mixing reaction. The mixed material is then injected into the cavity. After hardening, the finished product ejects from the cavity.
The advantages of using liquid injection molding process are as follows:
a. Curing time is shorter than compression molding and transfer molding.
b. Very suitable for complex design, high precision and precision tolerance parts.
c. Automation can improve cost-effectiveness and reduce running time and labor costs.
d. Suitable for mass production.
e. Fast curing, fast running.
f. For high yield operation, it is recommended to use automatic process, and it is better to use manual process for low yield operation.
Type of Products: Small parts, baby products, medical supplies.
Ta Yang Group Holdings Limited factory
Ta Yang Group Holdings Limited factory

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