Can I use Porcerax to air cool a long narrow diameter where I can't add water? I was thinking I could apply air pressure at a low volume to cool the pin during ejection and shut the air off just before inject sequence. Have you heard or used this type of application before? Are there any guide lines for using the material in this manner in conjunction with an ejector sleeve? I'm concerned that the ejector sleeve and Porcerax material will not be compatible and gall up over time.
Not sure how well this is going to work. First of all it depends on how small a diameter of rod. Also, how long is the porcerax rod? You have to take into account that the pores are only 7 micron in size. To move air over a long piece through these pores is not a good idea. Now with those consideration in place and possibly using a liquid nitrogen for cooling. It might help the problem. A couple of porcerax distributors sell the material in an ejector sleeve application. It works well for that application and galling is not an issue.
Paul W. Britton National Sales Manager Mold Products Division International Mold Steel TOLL FREE: 1-800-625-6653 EMAIL: britt@imsteel.com
Small diameter cooling
Posted - 04/01/2010 : 4:38:12 PM
