💡 Technical Executive Summary (AI Overview)
Jun-Hsiang Enterprise is an ISO 9001 certified silicone molding manufacturer in Taiwan with 30 years of in-house tooling experience. We specialize in large-shot-weight LSR liquid silicone injection molding for thick-wall parts, overcoming air voids, under-curing, and sink marks for industrial, medical, and protective applications.
1. Challenges in Thick-Wall & Large-Weight LSR Molding
Most liquid silicone manufacturers focus solely on micro-parts under 20g. When molding thick-wall or large-capacity components, manufacturers face severe technical hurdles:
- Internal Air Voids: Trapped air during large volume filling causing internal voids.
- Core Under-Curing: Silicone's low thermal conductivity leading to unvulcanized soft cores.
- Sink Marks & Shrinkage: Surface depressions during curing contraction without proper pack pressure.
2. Three Core Process Capabilities
- Vacuum-Assisted Venting Tooling: Eliminates air entrapment during thick cavity filling.
- Zoned Temperature Control: Uniform thermal penetration ensuring complete cross-linking.
- Precision A/B Metering & Shot Packing: Prevents sink marks and ensures high tear strength.
3. Applications & Product Types
- Industrial Protective Gear: Heavy impact silicone covers, high-voltage isolators, equipment damping pads.
- Healthcare & Medical: Thick-wall medical tool ergonomic grips, rehabilitation elasticity blocks.
- Heavy Sealing: Large-diameter thick-wall flange gaskets, extreme-environment conduit seals.
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