塑料模具用复合钢板及其制造方法
By using reasonable chemical composition and process design, the problem of uneven internal quality when the steel thickness of cavity molds is large was solved, and composite steel plates for plastic molds with high hardness and good uniformity were obtained, which reduced production costs and improved production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BAOSHAN IRON & STEEL CO LTD
- Filing Date
- 2022-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, when the thickness of the steel used for cavity molds is large, the internal quality of the steel plate is poor, the microstructure and mechanical properties are uneven, the production cost is high and the efficiency is low, especially due to the limitations of continuous casting billet thickness and insufficient compression ratio during rolling.
By employing a rational chemical composition design, including elements such as C, Si, Mn, Cr, Mo, Ni, Cu, V, and Al, and combined with optimized process steps such as billet assembly, rolling, and heat treatment, a fine bainitic structure and carbides are formed, ensuring the hardness and uniformity of the steel plate.
This invention enables the production of composite steel plates for plastic molds with high hardness and uniform thickness and cross-sectional properties, thereby reducing the content of precious metals, improving production efficiency and product quality, and reducing production costs.
Smart Images
Figure BDA0003773486740000061 
Figure BDA0003773486740000071