Sequential Co-Extrusion & All Extruded Products
This method combines 3-D blow molding with sequential co-extrusion, and consists of extruding two different materials (e.g., a rigid polyolefin with a soft thermoplastic vulcanizate). Coi Rubber has the perfect method to provided you with extruded products which will meet your application and demand.
Using this example, the soft thermoplastic vulcanizate would be extruded, followed by the rigid polyolefin, followed again by the soft thermoplastic vulcanizate. This allows a parison with different sections of material in the extrusion direction to be produced. This process is also commonly referred to as a “hard-soft-hard” process.
An inclined clamp is moved in coordinates while the parison, that has a smaller diameter than the article diameter, is placed into the mold cavity in such a way that the remaining pinch line length is reduced to a minimum. Then the mold is closed and the parison is inflated onto the cooled walls of the mold where the plastic cools down, solidifies, and sets the part shape. Finally the mold is opened and the part removed.
このプロセスがもたらすメリット
- 大幅な節約（材料、エネルギー、資本、サイクルタイムなど）が可能になります。.
- フラッシュは大幅に小さくなり、簡単に取り外すことができます。.
- 非常に複雑な形状の部品は成形可能です。.
- クランプ力は減少します。.
- 外径の仕上げ作業が不要になります。.
- より均一な壁厚分布とピンチラインの弱い部分の排除により、品質が向上しました。.
- 小型の押出機を使用することも、より大きな部品を成形することも可能です。.
- フラッシュを研削したりリサイクルしたりする際にエネルギーを大幅に削減できます。.
- 敏感な材料の劣化が少ない。.
- 特定の物理特性を提供する二重材料の共押出法。.
- 希望の箇所で柔軟性や硬さを異なるように調整することも可能です。.
ゴム押出／エッジトリム
We are experts in u-channel extrusions, and we specialize in supplying extruded rubber shapes, extruded rubber seals and extruded rubber profiles. We also stock rubber extrusion for many applications. The standard profiles include U-Channels, P-profiles and other unique shapes. Common uses for rubber extrusion are sealing, noise control, vibration control and decorative trim. The elastomers used in our standard rubber extrusions are either weather resistant EPDM or SBR. Silicone, Neoprene, Viton and Buna-N are also available if your unique application requires a higher level of performance. Custom compounds and profiles are our specialty.
Extruding Rubber Sponge
Extruding Rubber Solids
Extruding Rubber Dual Durometer
– Wire Carrier
– Clip Carrier
-HAT (heat activated tapes)
3M
China generic
Extrusions custom shapes and Secondary processes
KITTING