car body prototype bumpers

The definition of RIM:

RIM (Reaction Injection Molding), is a Rapid Tooling process where parts are made from mixing and injecting PU materials into a mold and cured through a process of polymerization (molecular cross-linking) in a low pressure / room temperature environment.

                                                Our RIM machine

Specifications:

Three Mold : Epoxy resin mold(life>100shots)  ABS plastic mold ( life>300shots)  Aluminum mold ( life>1000shots )

Injection material: Dual injection process PU

Physical properties:PP/ABS, Part is durable, high impact, high degree of fit ,loading and unloading properties.

General curing time:15-30 minutes/piece, Part takes 2-4 houres to cure under 80c condition after mold release.

standard accuracy: 0.2mm/100mm

Thickness of mold part: max 100mm

Advantages of RIM process

Compared to Plastic Injection Molding, RIM (Reaction Injection Molding) is a more simple and convenient process with a shorter production cycle.

Compared to Vacuum Casting, RIM offers a higher level of automation and efficiency.

Compared to Thermo-Forming and Board Bonding, RIM is a more flexible design option.

RIM parts can be designed with elaborate surface details and Class A surfaces, with integrated structures and different wall thicknesses, and with machining stability and accuracy.

                                                      Car bumpers