Synergy between plastics and engineering methods
A long pipe with a hollow interior with minimal thickness deviation achieved by using an engineering method in which a plastic resin ball is extruded by gas pressure.
Benefits
- 30% weight reduction and 20% cost reduction compared to stainless steel products.
- Low heat dissipation and no rusting compared to stainless steel products.
- 50% improvement in maximum length and uniform wall thickness compared to the conventional engineering method.
Features
- An engineering method established to form a hollow body by extruding a plastic resin ball by gas pressure, which expels the molten plastic resin inside the pipe.
- An optimum plastic resin ball shape established to enable a smooth hollow inner surface with minimal thickness deviation.
- An improvement in cooling method to achieve fast cycles. (* Patent pending)
- A molding method that prevents gas from penetrating anywhere other than the hollow area used to enable the fastener bearing surface to be molded as a single unit. (* Patent pending)