Mold Backplate / Support Structure

The Mold Backplate / Support Structure is a critical structural element in water-cooled copper mold systems, serving as the foundational mounting platform and reinforcement structure. It provides mechanical stability, ensures proper alignment of mold components, and withstands operational stresses during continuous casting or molding processes. The backplate/support structure maintains dimensional accuracy and prevents deformation under thermal cycling and mechanical loads.

This component is typically manufactured from carbon steel, alloy steel, or stainless steel, with material grades such as Q235B–Q345B (per GB/T 700 and GB/T 1591) for higher strength and stiffness. Plate thickness ranges from 20 to 60 mm, depending on mold size and required clamping force. Flatness tolerance is 0.05–0.10 mm (ISO 1101) to ensure uniform mold support, while surface roughness is Ra 1.6–3.2 µm (ISO 4287) for sealing surfaces. Parallelism tolerance is 0.02–0.05 mm (ISO 1101) to ensure even pressure distribution. Hardness is HB 150–220 (ISO 6506-1) for wear resistance, and yield strength is 235–345 MPa (GB/T 1591) for structural integrity. Operating temperature ranges from -20°C to 200°C; above 200°C, heat-resistant alloys may be required. Maximum clamping force is 500–5000 kN, and weight ranges from 200 to 2000 kg. Corrosion protection is typically zinc-phosphate coating (ISO 2081) to prevent rust in humid environments.

As a directory listing, these values are reference ranges and must be verified with the legal manufacturer or supplier for the specific model and application. The backplate/support structure is essential for maintaining mold geometry and preventing warping that could affect product quality. It is a component used in machinery and equipment manufacturing, particularly in continuous casting and molding processes. For procurement, confirm material grade, dimensions, tolerances, and compliance with relevant standards. Regular inspection for flatness, parallelism, and surface condition is recommended to ensure continued performance.

The backplate/support structure functions as the primary load-bearing framework for the water-cooled copper mold assembly. It distributes mechanical forces evenly across the mold system, provides secure mounting points for cooling channels and mold plates, and maintains structural integrity during thermal expansion and contraction cycles. By offering rigid support, it ensures consistent mold geometry and prevents warping that could affect product quality.