reaction injection molding
Quick Summary
Reaction injection molding (RIM) is a process used to create thermoset plastic parts, such as car bumpers and interior panels. It involves mixing two liquid precursors, typically a multifunctional isocyanate and a prepolymer, which then rapidly react to form a solid polyurethane network. This reaction occurs quickly, so the components are combined in a special mixing head before being injected into a mold. The process requires low molding pressures, allowing for the use of lightweight and inexpensive molds, even for large items.1
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major industrial polymersPolyurethane elastomersThis technology, known as reaction injection molding, accounts for much of the production of thermosetting elastomers made from polyurethane. Polyurethane elastomers are made into automobile parts, industrial rollers, flexible molds, forklift tires, roller-skate and skateboard wheels, medical equipment, and shoe soles.
Read MoreThis technology, known as reaction injection molding, accounts for much of the production of thermosetting elastomers made from polyurethane. Polyurethane elastomers are made into automobile parts, industrial rollers, flexible molds, forklift tires, roller-skate and skateboard wheels, medical equipment, and shoe soles.
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plasticReaction injection moldingOne type of network-forming thermoset, polyurethane, is molded into parts such as automobile bumpers and inside panels through a process known as reaction injection molding, or RIM. The two liquid precursors of a polyurethane are a multifunctional isocyanate and a prepolymer, a…
Read MoreOne type of network-forming thermoset, polyurethane, is molded into parts such as automobile bumpers and inside panels through a process known as reaction injection molding, or RIM. The two liquid precursors of a polyurethane are a multifunctional isocyanate and a prepolymer, a…
Read More