I received this question on our online chat feature earlier today… Agustin Can you please give me the IR (intensification ratio) for an electric molding machine? My Response Electric molding machines do not have intensification ratios because they lack hydraulic pressure. Your machine should be configured to provide the actual injection pressure. Basically, an electric […]
Monthly Archives
July 2010
Appropriate Sensor Clearance…
This question highlights an often overlooked concern when using pressure sensors mounted underneath ejector pins. Milan How much of a gap should be used between the pressure sensor and the ejector pin? My Response The general recommendation from most manufacturers is between 0.25-0.5mm or 0.010-0.020in. In reality, this specification refers to the clearance between the top of […]
Regrinding Sandy Plastic…
I received this interesting question recently… Joy I have a client with ten tonnes of material awaiting regrind and re-processing. Unfortunately, the material is contaminated with sand. I have a couple questions. First, is it unethical to regrind and re-process the material since it is contaminated? Second, what are the financial costs and ethics associated […]
Understanding Pressure…
Someone was reading one of my archived blog entries and asked me this follow-up question… Tan Could you please define pressure in a way that I can explain it easily to my technicians? My Response Pressure is a measurement of force spread out over an area. Pressure = Force / Area This means, if you […]
Moving a Mold from One Machine to Another…
I just got this question the other day… MJ When I want to move mold to another machine, which machine parameters should I check? My Response This question brings up the importance of machine independent documentation that includes part specific data such as part weight, fill time, coolant and melt tempertaures as well as the actual […]