Composite die-cast structure and method for manufacturing same
By setting a locking structure in the composite die-casting structure, the mechanical bonding force between the zinc alloy matrix and the stainless steel insert is enhanced, solving the embrittlement problem during welding of zinc alloy and stainless steel, and achieving stable connection and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FULIWANG PRECISION ELECTROMECHANICAL (NANTONG) CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing composite molds suffer from liquid metal embrittlement during the welding of zinc alloy and stainless steel, leading to cracking of the weld joint, insufficient connection strength, and high processing difficulty and cost, failing to meet the mechanical performance and sealing requirements of structural components.
A locking structure is adopted to enhance the mechanical bonding force between the zinc alloy substrate and the stainless steel insert. The zinc alloy substrate is wrapped around the joint of the stainless steel insert by in-mold die casting. The joint is equipped with locking structures such as semi-circular buckles, dovetail buckles, and T-shaped buckles, and is fixed by welding.
A stable connection between zinc alloy and stainless steel was achieved, meeting the requirements for pull-out force and torque testing, and the connection strength reached the design standard, reducing processing difficulty and cost.
Smart Images
Figure CN122400534A_ABST