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.
这一过程的好处
- 可以实现显著的成本节约（材料、能源、资本、循环时间等）。.
- 闪光灯的亮度显著降低，而且很容易移除。.
- 形状非常复杂的零件可以进行模压加工。.
- 夹紧力降低。.
- 对外径的再加工工作被取消了。.
- 由于壁厚分布更加均匀，并且在夹紧线处消除了缺陷区域，因此提高了质量。.
- 可以使用较小的挤出机，也可以制模成较大的部件。.
- 在粉碎或回收闪光材料的过程中消耗的能量更少。.
- 敏感材料的劣化程度降低。.
- 双材料共挤工艺可提供特定的物理性能。.
- 在所需部分可以实现不同程度的柔韧性和刚度。.
橡胶挤出/边缘修整
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
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