一种压铸模具用特厚模块钢的生产方法
By optimizing the process flow and material selection, the production problem of extra-thick modular steel for die-casting molds was solved, achieving efficient and low-cost production of high-quality modular steel. The welding process is stable, and the yield and performance reach the level of premium steel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANGANG STEEL CO LTD
- Filing Date
- 2023-02-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for producing extra-thick modular steel for die casting molds suffer from problems such as long production cycles, low yield, poor internal quality, and high welding difficulty. In particular, high-alloy mold steel is prone to cracking during welding, resulting in a low success rate of billet assembly.
Using continuously cast billets as raw materials, the process involves slow cooling annealing, milling, preheating with electric heating asbestos pads, gas-electric vertical welding assembly, vacuum pump evacuation, spot welding sealing, multi-fire heating forging, and asymmetric forging. Combined with specific chemical compositions and welding wire selection, the welding quality and interface bonding strength are ensured. A low forging ratio and high penetration forging method are adopted.
It has achieved low-cost, high-efficiency production of high-quality extra-thick modular steel, with stable welding process, high interface bonding strength, and a yield rate of 91.8%. The internal structure is uniform and the performance reaches the level of high-quality steel, meeting the standards of GB/T6402 and SEP 1614SB1-SA1.
Smart Images
Figure CN116197619B_ABST