Casting Study: Seat Belt and Wheelchair Restraint Housing

Major Selection Criteria: High Mass, Mechanical Properties
Alloy: Zamak 3 (ZL3, ZL0400, ZnAI4, alloy 3)
Application Field: Transportation
Application Size: 92 mm length
Surface Finish: Other
Casting Technique: Pressure Die Casting
Source: Housing

wheelhse2_photo2_caseID149Originally, safety belt retractor housings were plastic injection molded. The plastic housings were easily damaged and caused retraction to malfunction. To meet performance standards, zinc die casting was selected to produce the housing and meet performance and appearance requirements, including dimensional control, flatness, straightness, and toughness.