M.R. Mold Exhibits at Southern California SPE's Western Plastic Trade Fair

July 10, 2014
Western Plastic Trade Fair
Half day seminars and supplier exhibitions. 
Three must see seminars for the plastics professional along with exhibits from the best suppliers to the Southern California plastic community.  Tasty German Dinner along with our famous raffle. 
August 14, 2014
Phoenix Club
Anaheim, CA

Seminar 1: 1:15-2:00PM

"Material Selection - 8 Questions To Ask"           

Robert P. Frey, 
Lead Technical Development Engineer

If you've ever wondered how to make sure you get the information needed to assist your customer in selecting the right material for a job, these 8 questions...actually more like 8 subjects to discuss... will likely bring up a lot more questions, but will also get the discussion started and will likely make your customer thing more about his application, and what it really needs.  Included are concerns regarding the chemical, thermal, mechanical and regulatory  environment, as well as a few other topics.
Bob has 40 years of experience in the plastics industry, starting with production jobs at Dow Chemical, then moving to GE Plastics for 7 years of tech support work in the NORYL®, XENOY® and VALOX® resin businesses.  Bob left GE Plastics and spent 7 years self-employed as a consultant, focusing mostly on computerized flow analyses.  During those years, he worked with a broad variety of thermoplastics, both engineering and commodity.  In 1993, Bob re-joined the GE family as the Technical Service Engineer for Polymerland, and stayed with GEPlastics until shortly after the buyout by Sabic. Finding that working for a single resin supplier was "too constricting", Bob moved to PolyOne Distribution in 2008.  This position at PolyOne Distribution includes responsibilities for processing, design, material selection, failure analyses, and education (both internal and external).  Bob has a BSME degree from Case Western Reserve University, in Cleveland, Ohio.  In his current position, Bob has responsibility to support customers in the 14 western United States as well as western Canada and the northern portions of Mexico.

Seminar 2: 2:15-3:00 PM

Shear happens!            
Steven Silvey 
Silveys' Plastic Consulting

Within the injection molding process there are many areas of shear which have an effect both on the plastics in the form of heat impute, to that which is caused by all the restricted areas in the machine, nozzle, and mold feed system.  Understanding the areas and the possible effects can lead to an understanding of what is controllable and easily interchanged from machine to machine as the tool moves yielding another universal setup point to consider. 

Though short the presentation shall cover:
Screw RPM vs surface speed
Temperature raise in nozzles
Shear and flowability
Gate design and effect of injection speeds

Steven L Silvey has many years in the plastic industry with experience in most of the major processing methods. He spent the first 16 years of his career in the custom molding, blow molding, compression and ophthalmic molding/casting businesses with duties ranging from maintenance, set-up/molder, R&D engineer, Tech Service Manager, to Engineering Manager at various companies. In addition he also filled in at Laney College, teaching mold design and part design in the evenings.  Steven than worked at  General Polymers/ Ashland for 15 years, as their technical services engineer covering  the Western region of the United States, Mexico, and Western Canada. In 2003 Steven started applying his knowledge as consultant as owner of Silveys' Plastic Consulting. In this capacity he continues to provide solutions and education to those in the plastic part manufacturing area
He is a graduate of California State University Chico. A Senior Member of SPE, Certified Instructor for RJG Systematic I training course, Certified Plastic Technologist and member at large of Epsilon Pi Tau.

Seminar 3: 
3:15-4:00 PM  

Optimizing Pack & Hold times In Hot Runner Molds
Suhas Kulkarni  

For cold runner molds, the pack and hold times are optimized by conducting a gate freeze study (or gate seal study) where the part weight is recorded as a function of the pack and hold times. When the gate freezes the part weight remains constant with increasing pack and hold times. A second or so is added to the lowest value of time where the part weight stays constant and this number is taken as the total time for the setting of the pack and hold times. However, in hot runner systems or in valve gated systems the gate area always has molten plastic and therefore the above method does not produce acceptable results. A method for optimizing this value in hot runner systems or valve gated systems is proposed based on the Cosmetic and Dimensional Process Window. Experimental results will be shown.

Suhas Kulkarni is the President of FIMMTECH, a consulting firm that specializes in services related to injection molding. He earned his Masters in Plastics Engineering from the University of Massachusetts, Lowell and a Bachelors in Polymer Engineering from the University of Poona, India. He has 22 years of experience as a process engineer. His main area of expertise is Scientific Processing for Injection Molding. He conducts regular training seminars in Injection Molding and has developed a custom software called Nautilus, that aids the complete process development routine to production release. He is a contract faculty at UMASS Lowell and has given numerous presentations and written several articles. He is also an author of the book 'Robust Process Development and Scientific Molding' published by Hanser Publications in 2010.

Vishu Shah 909-465-6699