Chengxin Silicone Rubber · Engineering and application insights

Molding, Tooling & Finishing

Check trials, cavities, filling, venting, inserts, demolding, trimming and post-curing. Validate conditions for the actual compound and equipment; these notes are not factory-capability guarantees.

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News2026-08-22

How to Conduct a DFM Review for Silicone Products? Identifying Risks in Drawings, Materials, and Molds Early On

简要答案：硅胶制品DFM评审是在开模前确认结构能否稳定成型、脱模、修边、检验和量产。评审应覆盖厚薄差、倒扣、分 […]

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News2026-08-15

Challenges in Micro-Scale Liquid Silicone Rubber Injection Molding: Filling, Venting, and Control of Microscopic Flash

简要答案：微型液态硅胶注塑对计量精度、模具排气、分型面间隙和自动取件要求更高。尺寸小不等于工艺简单，微小缺胶或 […]

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Molding, Tooling and Finishing2026-08-07

Lubricant Selection for Silicone Seal Assembly: Silicone Oil, Fluorinated Oil, and Dry Film Coatings

Short answer: Assembly lubrication can reduce insertion force, twisting, and scratching, but choosing the wrong lubricant may cause material swelling, contamination, migration, or functional failure. The selection should be based on the medium […]

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Molding, Tooling and Finishing2026-08-06

Molding of Silicone Parts with Metal Inserts: Positioning, Overmolding Thickness, and Anti-Disengagement Design

简要答案：金属嵌件硅胶成型要解决模内定位、进胶冲击、界面粘接和热膨胀差异。可靠性既来自表面处理，也来自孔、槽、 […]

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Molding, Tooling and Finishing2026-08-03

Self-Adhesive Silicone Pads and Adhesive-Backed Silicone Parts: Tape Selection, Surface Treatment, and Aging

Short answer: Silicone surfaces have low surface energy, so standard double-sided tape often cannot provide reliable, long-term adhesion. The adhesive solution must be compatible with the silicone surface, the substrate to be bonded, the operating temperature, and the type of stress applied […]

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Molding, Tooling and Finishing2026-08-02

What Is the Purpose of Plasma Treatment on Silicone Surfaces: Bonding, Printing, and Coating Adhesion

简要答案：硅胶表面能较低，直接粘接或印刷容易附着不足。等离子处理可在短时间内活化表面，但效果会随放置衰减，因此 […]

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News2026-08-01

What Is Freeze Trimming of Silicone Products? Applicable Products, Benefits, and Limitations

Short answer: Freeze trimming uses low temperatures to make thin flash brittle, which is then removed by jet blasting or rolling. It is suitable for small-batch parts and regular, thin flash, but cannot replace proper […]

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