Xiamen Better Silicone Rubber Co., Ltd
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Liquid Silicone Mold
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Liquid Silicone Mold
Liquid Silicone Mold & Liquid Silicon Mould, known as LIM or Liquid Injection Molding, RTV Liquid Silicon Mold etc. However, liquid silicone have many molded ways: liquid injection mold, compression mold and transfer injection molding etc. Following is many talking about liquid silicone molded by silicone injection molding machines and compression molded machines.
Liquid Silicone Mold by Injection Molded
Liquid silicone injection molds all need (water) cold runner systems, some need nozzle shut-off valves, some needn't shut-off & needle valves, which depends on liquid silicone rubber products designs, quality requirements and quantity demands etc.
Liquid Silicon Injection Mold with Shut-off Valves
Advantage of Liquid Silicone Injection Mold with Shut-off Valves
It can produce less 3mil (76.2 micron) or less 1 mil silicone rubber flashing & flash, some can up to no flash.
Liquid silicone injection molded product's sizes and designs tolerances is good and stable.
High yield liquid silicon injection molded products, low defect. Suit to LSR & liquid silicone mass production
Easily to implement liquid silicon & lsr automated production
Disadvantage of LSR silicone injection mold with shut-off valves
Shut-off valve is one kinds of mold standard parts, which is very expensive. Only one shut-off valve cost is no less 500 or 800 hundreds dollars, some above one or two thousands dollars. If liquid silicone molded product want to achieve no silicone rubber flash, each mold cavity & chamber need one shut-off valves.That's why many customers would receive big price difference quotation for liquid silicon rubber mold.
For save liquid silicone injection molding cost, some mold factories will choose one shut-offer valves for two or four mold cavities & chambers. Some also choose cheap or homemade shut-off valves, which is nonstandard, liquid silicone rubber injection molded products quality is not good enough or not stable when lsr injection production.
Liquid Silicone Injection Mold without Shut-off Valves
Liquid silicone injection mold without shut-off valves, also called Open-ended Liquid Silicone Injection Mold, like edge-injection-gate plastic injection mold. Liquid silicone & lsr products have big injection gate mark or flow mark. This molded types mainly suit to produce big LSR silicon products like baby feeding bottle, produce not sizes and designs tolerances requirement like baby care products, or produce low-volume liquid silicone products.
Advantage of Liquid Silicone Injection Mold without Shut-off Valves
Save LSR injection molding cost
Suit to low-volume lsr injection molded
Suit to prototyping liquid silicone products
Recycle liquid silicone mold base
Disadvantage of Liquid Silicone Injection Mould without Shut-off Valves
Liquid silicone flow-mark or spot in LSR products
Injection gate is easy to blocking when production
Difficult to control injected dosage
Can't produce high precision liquid silicone rubber products & parts
Big liquid silicone rubber flashing, waste liquid silicon materials
Liquid Silicone Mold
Liquid Silicone Mold & Liquid Silicon Mould, known as LIM or Liquid Injection Molding, RTV Liquid Silicon Mold etc. However, liquid silicone have many molded ways: liquid injection mold, compression mold and transfer injection molding etc. Following is many talking about liquid silicone molded by silicone injection molding machines and compression molded machines.
Liquid Silicone Mold by Injection Molded
Liquid silicone injection molds all need (water) cold runner systems, some need nozzle shut-off valves, some needn't shut-off & needle valves, which depends on liquid silicone rubber products designs, quality requirements and quantity demands etc.
Liquid Silicon Injection Mold with Shut-off Valves
Advantage of Liquid Silicone Injection Mold with Shut-off Valves
It can produce less 3mil (76.2 micron) or less 1 mil silicone rubber flashing & flash, some can up to no flash.
Liquid silicone injection molded product's sizes and designs tolerances is good and stable.
High yield liquid silicon injection molded products, low defect. Suit to LSR & liquid silicone mass production
Easily to implement liquid silicon & lsr automated production
Disadvantage of LSR silicone injection mold with shut-off valves
Shut-off valve is one kinds of mold standard parts, which is very expensive. Only one shut-off valve cost is no less 500 or 800 hundreds dollars, some above one or two thousands dollars. If liquid silicone molded product want to achieve no silicone rubber flash, each mold cavity & chamber need one shut-off valves.That's why many customers would receive big price difference quotation for liquid silicon rubber mold.
For save liquid silicone injection molding cost, some mold factories will choose one shut-offer valves for two or four mold cavities & chambers. Some also choose cheap or homemade shut-off valves, which is nonstandard, liquid silicone rubber injection molded products quality is not good enough or not stable when lsr injection production.
Liquid Silicone Injection Mold without Shut-off Valves
Liquid silicone injection mold without shut-off valves, also called Open-ended Liquid Silicone Injection Mold, like edge-injection-gate plastic injection mold. Liquid silicone & lsr products have big injection gate mark or flow mark. This molded types mainly suit to produce big LSR silicon products like baby feeding bottle, produce not sizes and designs tolerances requirement like baby care products, or produce low-volume liquid silicone products.
Advantage of Liquid Silicone Injection Mold without Shut-off Valves
Save LSR injection molding cost
Suit to low-volume lsr injection molded
Suit to prototyping liquid silicone products
Recycle liquid silicone mold base
Disadvantage of Liquid Silicone Injection Mould without Shut-off Valves
Liquid silicone flow-mark or spot in LSR products
Injection gate is easy to blocking when production
Difficult to control injected dosage
Can't produce high precision liquid silicone rubber products & parts
Big liquid silicone rubber flashing, waste liquid silicon materials
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