Accessories processing video

2 year ago

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Dongguan Shengshiweiye Machinery Technology Co., Ltd.

 2 year year

Product details

1) Process Adaptation: Targeted Solutions to Casting Pain Points of Different Hinges Different materials and types of hinges present different pain points during the casting process. Customers are concerned about how equipment can achieve precise adaptation through process optimization: Stainless Steel Hinges: Solving High-Temperature Forming and Corrosion Resistance Issues The core pain point of stainless steel hinges is their susceptibility to oxidation at high temperatures and the tendency for casting defects. The equipment needs to be adapted through the following design: ① Adopting an "inert gas protected casting" process, argon gas is introduced during casting to isolate air, reduce oxidation of molten stainless steel, ensure a smooth casting surface, and reduce subsequent pickling costs; ② Optimizing the mold cooling water path and adopting a "conformal cooling" design to extend the cooling time of key parts (such as shaft holes) due to the slow heat dissipation of stainless steel, reducing shrinkage defects and ensuring the load-bearing performance of the hinge (static load ≥ 8 kg/piece); ③ Supporting the addition of stainless steel micro-alloying, allowing precise control of chromium and nickel content (304 stainless steel chromium ≥ 18%, nickel ≥ 8%), ensuring the hinge's corrosion resistance and complying with the EU RoHS directive's restrictions on heavy metals. Brass Hinges: Solving the Problems of Flowability and Composition Stability The core pain points of brass hinges are the high flowability of molten metal, which easily generates flash, and compositional fluctuations affecting performance. Equipment adaptation design includes: ① Adopting a "quantitative pouring + low-speed filling" process, with a brass molten metal quantitative accuracy of ±1% and a filling speed controlled at 50-80mm/s, reducing flash generation and minimizing grinding workload; ② Equipped with an online composition detection system, testing the copper and zinc content (H62 brass copper 60.5%-63.5%, zinc 36.5%-39.5%) before each batch of molten brass is poured, ensuring compositional stability and avoiding insufficient hinge hardness due to compositional deviations (requiring Brinell hardness HB≥80); ③ Nitriding treatment on the mold surface (nitriding layer thickness ≥0.1mm) to improve mold wear resistance, adapt to the scouring effect of molten brass on the mold, and extend mold life (≥80,000 cycles). Concealed Hinges: Solving Appearance and Structural Precision Issues Concealed hinges have extremely high requirements for appearance and structural precision. The equipment must meet these requirements through the following design: ① Polishing the mold cavity surface (roughness Ra≤0.4μm) to ensure a smooth casting surface, achieving the appearance requirements (no obvious scratches or dents) without the need for post-polishing; ② Employing a "multi-stage pressure holding" process, applying pressure in stages (0.3-0.5MPa) during casting solidification to reduce shrinkage and deformation of complex structures such as the curved arm and snap-fit of the concealed hinge, ensuring assembly precision (gap with cabinet doors and frames ≤0.5mm); ③ Supporting "gating-free casting" design, optimizing the gating system to fully fill the cavity with molten metal, reducing gating and riser residue, minimizing material waste (material utilization ≥90%), and avoiding appearance defects caused by gating and riser removal.

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Dongguan Shengshiweiye Machinery Technology Co., Ltd.

 Audited supplier

2 year

Address: Dongguan, China

Main Product: Hydraulic press machine, Gravity casting machine , Casting Machinery, Low pressure casting machine, Powder Pressing Machine, Hydraulic trimming press

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