Advertising in MoldMaking Technology offers
Issue link: https://mmt.epubxp.com/i/498250
Mold Material/Surface Treatment 40 MoldMaking Technology May 2015 FIGURE 4 Mold Description Cycle Time (sec.) Ejector Pin & Blade Breakage 8-cavity H-13 steel 35 Yes 8-cavity aluminum (uncoated) 30 Yes 8-cavity aluminum (hard-coated) 24 No The nickel boron hard-coated eight-cavity aluminum mold was needed for extra capacity because the H-13 mold was running slower and needed maintenance for pin breakage. Since the nickel boron hard coating added lubricity, this mold had a 20-percent reduction in fill time with 30 percent less injection pressure. Its 24-second cycle added 378 more parts per hour, which produced 9,072 additional parts over a 24-hour period. PROJECT SUMMARY This consumer clip housing (top image) made from Lexan 940 resin with 0.040-inch wall thickness and a 1/2 degree of draft was produced from this eight-cavity aluminum mold hard-coated with nickel boron for lubricity (bottom image). The hard coating eliminated broken ejector pins and blades, unlike with the uncoated aluminum and H-13 steel molds. Completely sealed The NEW EROWA ITS 50 holder C provides maximum protection against contamination of the chuck during the manufacturing process. The ITS 50 C also has an integrated gripper groove for automation and it is universally applicable. www.erowa.com