Plastic Mold Steels
Best results can be achieved by drilling a vent hole into the bottom of the
pin (Figure #1). This procedure considerably shortens the "escape route" for
Since highest permeability can be achieved with an EDM finish, it is
desirable to EDM the bottom and sides of the drilled hole for better efficiency
(Figure #2). Be sure all EDM fluids are cleaned out before installing the pin
into the tool.
It is best to grind the outside diameter of the pin, or install a copper,
brass, or plastic tube inside the drilled hole if a blowback system is used
(Figure #3). This allows concentration of air pressure in an area where it is
needed most (next to the molding surface).
It is imperative that anyone coming into contact with Porcerax II during the
mold building or molding operations understand the characteristics and
sensitivity of this material. Any questions should be directed to International
Mold Steel at 1.800.625.6653.
All technical and engineering data and suggested procedures, specifications and
applications contained in this publication are for general information only.
Sintokogio, Ltd., International Mold Steel and/or their distributors disclaim
any and all express or implied warranties of merchantability, suitability for
any particular purpose or use, or freedom from infringement of any patent,
trademark or copyright. Porcerax II® is a registered trademark of International
Mold Steel, Inc. and Sintokogio, Ltd..