DSI molding
It is a molding technology that demonstrates its power into the realization of products featuring hollow structures or complex structures with built-in components.
DSI (Die Slide Injection Molding) is an injection molding method that enables quick and accurate molding of hollow bodies with complex internal structures.
It consists into a primary injection by which a semi-finished (divided) product is molded, then by molding a hollow body by sliding a hydraulic mechanism, and by a secondary injection for melting and joining. DSI technology eliminates problems such as uneven wall thickness or weak joining strength, which appear in conventional hollow-body molding methods.
It consists into a primary injection by which a semi-finished (divided) product is molded, then by molding a hollow body by sliding a hydraulic mechanism, and by a secondary injection for melting and joining. DSI technology eliminates problems such as uneven wall thickness or weak joining strength, which appear in conventional hollow-body molding methods.
Product reference images
Features of DSI
- ・Enables complex hollow body molding, assembly molding and sealing molding with insertions
- ・Contributes to reduction of molding cost and improvement of productivity, since post-processing is no longer required
- ・Joints are 1.5 to 2.0 times stronger than obtained by vibration welding
- ・Available also for joint surfaces with three-dimensional or atypical shapes
- ・Easy control of wall thickness (1.5-5.0 mm) and high dimensional accuracy
Application example
| Automotive | Resonator chamber, intake manifold, intake pipe, fuel filter, fuel floater |
| Office equipment | Copiers, toner containers, ducts |
| Home appliances | Washing machine drain pipes, refrigerator ice water tanks |
| Others | Auto-winder mouse, blower fan |
Molding process
