Relaxation of polymer orientation
Excellent surface gloss
When a polymer alloy or a co-polymer containing elastomer (such as ABS resin or TPO compound) is injection molded, the elastomer phase elongates during its filling process. In conventional injection molding, the elastomer phase orients towards flow direction while cooling and solidifing take place at its stretched structure.
When the molds are opened and the pressure drops, the elongated elastomer phase trys to return to its genuin structure (relaxation) by shrinking, resulting in an uneven surface of the molded plastics.
In the patented technology of RHCM, its filling process allows the elongated elastomer phase to return to its genuine structure (relaxation) within the press before the molds are opened. Accordingly, an even and superior plastic surface is produced.
Improved plating adhesion
- Plating process of resin
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The surface is chemically etched to solve out the rubber phase. Induction process is applied to the etched surface. Electricity forms a metallic layer.
- Effects of RHCM
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The rubber phase near the surface of the molded product is kept to its genuine spherical structure, resulting in higher anchor effect through etching.