Xiamen Better Silicone Rubber Co., Ltd
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Silicone Injection Molding
Silicone Injection Molding, also called Liquid Injection Mold, LIM or LSR Molding, which two different kinds of runner systems: hot and cold runner.
Cold Runner Silicone Injection Molding
Liquid silicone & LSR materials need intersive distributive mixing and cold runner also need shut-off valve & needle valve in aim to maintain liquid silicone rubber LSR materials at a low temperture before LSR injected into the heated chambers (cavities) for vulcanization.
Hot Runner Silicone Injection Molding
Hot runner silicone injection molding, which mold without needle valves (shut-off valve), only need distributive mixing and liquid silicone rubber feeding systems. This kind silicone injection mold suit to low-volume LSR injection molded production, not size-tolerance requirement liquid silicon products, like LSR baby nipple bottle. Most baby & mother care and cosmetics LSR products choose hot runner silicon injection mold in aim to save lsr mold cost.
Silicone Injection Molding with Cold Runner System Advanatages and Disadvantages
Advantage:
More Precision LSR Molded Products: LSR injection dosage under control by needle valve
Save LSR materials loss: Less or no liquid silicone rubber flashing
Save Labor Cost: needn't or less dis-burring
More easier to achieve automatic production: especially, 2-Shots & Over-molding, like hot-runner plastic injection mold
Disadvantage: Needle & Shut-off valve is too expensive, each needle valves need several hundreds or thousands dollars. If one silicone injection mould have 4 cavities & chambers, for precision lsr molded production, generally need four pieces needle valve.
LSR Injection Molding, Liquid Silicone Rubber Molding and Liquid Silicone Mold, which is used to produce different kinds of Liquid Silicone Rubber (LSR) parts in different areas by Vertical Silicone Injection Molding Machine or Horizontal Liquid Silicone Rubber Injection Molding Machine. Silicone Injection Molding is widely used in medical, automatic, electronic, babycare, outdoor activities, kitchen areas.
Silicone Injection Molded Part in Babycare areas:
Silicone Injection Molding is widely used for babycare products, such as: LSR Silicone Baby Nipples, LSR Silicone Baby Breast Pump, Liquid Silicone Baby Bottle, Liquid Silicone Baby Feeder, LSR Silicone Baby Toothbrush, Silicone Baby Finger Toothbrush, Teething Toothbrush.
Silicone Injection Molded Parts in Medical Areas:
Silicone Injection Molding is a good choice for medical device: LSR Silicone Mask, Liquid Silicone Rubber Full Face Mask, LSR Seal, LSR Gasket, LSR Silicone Forehead Pad, LSR Silicone Cushion, Silicone Breathing Mask, Medical Oxygen Mask, Oxygen Face Mask, LSR Silicone Cannula, Medical Grade Silicone Nose.
More and more high demand silicone gasket and seal choose Silicone Injection Molding to produce. Becuase LSR Gasket and seal have stable design and can achieve tight tolerance and with higher precision. Water contact products also choose Liquid Silicone Rubber as material because LSR's unique properties:
Wide Range Temperature Resistance - withstands temperature extremes from -155°F to 400°F.
Excellent Mechanical Properties - good elongation, excellent flexibility.
Wide range of durometer: 10-80 Shore A.
Good Insulating Properties
Exceptional Weather Resistance - resists the damaging effects of UV light, ozone, O2, weather, moisture and steam with outstanding aging characteristics.
Good Chemical Resistance - resists water and many chemicals such as some acids, oxidizing chemicals, ammonia and isopropyl alcohol.
High Dimensional Stability - offers excellent accuracy and provides versatility of shape and form to many seals and parts, even complicate shapes.
Silicone Injection Molding's Advantages:
Silicone Injection Molding has many advantages compared with Silicone Compression Molding:
Silicone Injection Molding is higher precision: tight tolerance: +/-0.02mm.
Silicone Injection Molding is higher efficiency with shorter cycle time: about 15 seconds.
Silicone Injection Molding is safest: can achieve 100% FDA and medical grade.
Silicone Injection Molding
Silicone Injection Molding, also called Liquid Injection Mold, LIM or LSR Molding, which two different kinds of runner systems: hot and cold runner.
Cold Runner Silicone Injection Molding
Liquid silicone & LSR materials need intersive distributive mixing and cold runner also need shut-off valve & needle valve in aim to maintain liquid silicone rubber LSR materials at a low temperture before LSR injected into the heated chambers (cavities) for vulcanization.
Hot Runner Silicone Injection Molding
Hot runner silicone injection molding, which mold without needle valves (shut-off valve), only need distributive mixing and liquid silicone rubber feeding systems. This kind silicone injection mold suit to low-volume LSR injection molded production, not size-tolerance requirement liquid silicon products, like LSR baby nipple bottle. Most baby & mother care and cosmetics LSR products choose hot runner silicon injection mold in aim to save lsr mold cost.
Silicone Injection Molding with Cold Runner System Advanatages and Disadvantages
Advantage:
More Precision LSR Molded Products: LSR injection dosage under control by needle valve
Save LSR materials loss: Less or no liquid silicone rubber flashing
Save Labor Cost: needn't or less dis-burring
More easier to achieve automatic production: especially, 2-Shots & Over-molding, like hot-runner plastic injection mold
Disadvantage: Needle & Shut-off valve is too expensive, each needle valves need several hundreds or thousands dollars. If one silicone injection mould have 4 cavities & chambers, for precision lsr molded production, generally need four pieces needle valve.
LSR Injection Molding, Liquid Silicone Rubber Molding and Liquid Silicone Mold, which is used to produce different kinds of Liquid Silicone Rubber (LSR) parts in different areas by Vertical Silicone Injection Molding Machine or Horizontal Liquid Silicone Rubber Injection Molding Machine. Silicone Injection Molding is widely used in medical, automatic, electronic, babycare, outdoor activities, kitchen areas.
Silicone Injection Molded Part in Babycare areas:
Silicone Injection Molding is widely used for babycare products, such as: LSR Silicone Baby Nipples, LSR Silicone Baby Breast Pump, Liquid Silicone Baby Bottle, Liquid Silicone Baby Feeder, LSR Silicone Baby Toothbrush, Silicone Baby Finger Toothbrush, Teething Toothbrush.
Silicone Injection Molded Parts in Medical Areas:
Silicone Injection Molding is a good choice for medical device: LSR Silicone Mask, Liquid Silicone Rubber Full Face Mask, LSR Seal, LSR Gasket, LSR Silicone Forehead Pad, LSR Silicone Cushion, Silicone Breathing Mask, Medical Oxygen Mask, Oxygen Face Mask, LSR Silicone Cannula, Medical Grade Silicone Nose.
More and more high demand silicone gasket and seal choose Silicone Injection Molding to produce. Becuase LSR Gasket and seal have stable design and can achieve tight tolerance and with higher precision. Water contact products also choose Liquid Silicone Rubber as material because LSR's unique properties:
Wide Range Temperature Resistance - withstands temperature extremes from -155°F to 400°F.
Excellent Mechanical Properties - good elongation, excellent flexibility.
Wide range of durometer: 10-80 Shore A.
Good Insulating Properties
Exceptional Weather Resistance - resists the damaging effects of UV light, ozone, O2, weather, moisture and steam with outstanding aging characteristics.
Good Chemical Resistance - resists water and many chemicals such as some acids, oxidizing chemicals, ammonia and isopropyl alcohol.
High Dimensional Stability - offers excellent accuracy and provides versatility of shape and form to many seals and parts, even complicate shapes.
Silicone Injection Molding's Advantages:
Silicone Injection Molding has many advantages compared with Silicone Compression Molding:
Silicone Injection Molding is higher precision: tight tolerance: +/-0.02mm.
Silicone Injection Molding is higher efficiency with shorter cycle time: about 15 seconds.
Silicone Injection Molding is safest: can achieve 100% FDA and medical grade.
