Compression molding is a manufacturing process in which the molding material is preheated then placed in an open mold cavity where the compressive action of the punch forces the polymer into the desired shape as shown in the figure below. Based on your understanding of the behavior of polymers, which of the statements below regarding compression molding of polymers are accurate? Punch Cavity a. C. O d. Upper mold half (1) [V.F v, F Charge Lower mold half 4-Y Knock-out pin (2) and (3) Molded part }}} b. This process can be used for both thermosets and thermoplastics as they can both be thermally shaped This process is suitable for rubber, PVC and polymethyl methacrylate Lower operating temperatures are more desirable as they reduce viscosity making it easier to fill the cavity This process can only be used for thermosets as they can thermally cure from monomer state
Compression molding is a manufacturing process in which the molding material is preheated then placed in an open mold cavity where the compressive action of the punch forces the polymer into the desired shape as shown in the figure below. Based on your understanding of the behavior of polymers, which of the statements below regarding compression molding of polymers are accurate? Punch Cavity a. C. O d. Upper mold half (1) [V.F v, F Charge Lower mold half 4-Y Knock-out pin (2) and (3) Molded part }}} b. This process can be used for both thermosets and thermoplastics as they can both be thermally shaped This process is suitable for rubber, PVC and polymethyl methacrylate Lower operating temperatures are more desirable as they reduce viscosity making it easier to fill the cavity This process can only be used for thermosets as they can thermally cure from monomer state
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Transcribed Image Text:Compression molding is a manufacturing process in which the molding material is preheated then
placed in an open mold cavity where the compressive action of the punch forces the polymer into the
desired shape as shown in the figure below. Based on your understanding of the behavior of
polymers, which of the statements below regarding compression molding of polymers are accurate?
Punch
Cavity
(1)
-Upper mold half
O c.
Charge
-Lower mold half
Knock-out pin
|*.F
(2) and (3)
Molded part
2
O a. This process can only be used for thermosets as they can thermally cure from monomer
state
Ob. This process can be used for both thermosets and thermoplastics as they can both be
thermally shaped
This process is suitable for rubber, PVC and polymethyl methacrylate
O d. Lower operating temperatures are more desirable as they reduce viscosity making it easier
to fill the cavity
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