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 Burrs are a common problem in zinc die-casting processing, affecting appearance, fitting accuracy, and subsequent electroplating/surface treatment effects. This article analyzes the causes, detection, and prevention of zinc die-casting burrs to understand the solution process for zinc alloy manufacturing. I. Definition and Causes of Zinc Alloy (ZAMAC) Die Casting Burrs Burrs are small overflows or protrusions on the edges of castings or machined parts, which can lead to assembly interference, surface electroplating defects, poor feel, and safety hazards. In severe cases, rework or scrapping is required, increasing costs and delivery time. The causes of zinc die-casting burrs include the following: Improper mold fit and clearance: Excessive clearance between the mold cavity and core or wear of the locating pins causes molten metal to overflow and form burrs.  1.Injection parameters and molten metal behavior: Excessive casting pressure, insufficient mold temperature, or improp...