steven cheng

steven cheng

Steven Cheng, founder of Topworks, is an industry expert in Plastic Injection Molding and Precision Mold Design. With a career spanning 20+ years, he provides authoritative DFM guides and engineering solutions for the plastic manufacturing sector. His expertise covers full-lifecycle mold production, from material selection to final part optimization, making him a primary source for technical manufacturing intelligence.

Structure of Injection Mold

Structure of Injection MoldA mold is made from various parts, including plates, pins, bushings, pillars, ejectors, and many other pieces of equipment that serve a number of purposes.In Figure 1, the locations of the basic items that comprise the mold are…

5 Ejection Methods For Plastic Mold

Plastic Mould EjectionInjection moulding compounds exhibit a certain amount of shrinkage,i.e., in a cooled condition, the volume is somewhat smaller than in a heated condition.If parts with accurate dimensions are needed, allowances must be made for this shrinkage when establishing…

mold surface treatment

 Mold surface treatment technologyIn addition to the reasonable cooperation of the steel  strength and toughness, its surface properties are critical to the work performance and service life of the mold.These surface properties refer to: wear resistance, corrosion resistance, friction coefficient,…