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This article presents a technique for applying a thin, outermost layer of material to a multilayer urethane platen for impact printers or the like.
English (United States)
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100% of the total text.
Page 1 of 2
Centrifugally Molding Platens
This article presents a technique for applying a thin, outermost layer of
material to a multilayer urethane platen for impact printers or the like.
The figure shows a single mold cup 3 which is one of several in a centrifugal
mold of the type having at least two cups pivotally connected to a central shaft
such that rotation of the shaft causes the cups to swing out. Inserted in mold cup
3 is shaft 5 about which the platen layers 7 have been molded. Molding the final
layer 9 on the platen structure is accomplished by pouring molding material into
cup 3 via inlet 11. Rotating the cup results in the even distribution of the final
layer over the previously molded layers.
This technique is superior to the previously used spray process in that it
allows a greater range of material choices and tolerance control.
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