On January 4, 2021, China's leading aluminum alloy precision die casting and mold manufacturer, ZJHS Precision Technology Group, was awarded the title of "R&D and industrial application of the key technology of E-booster high-precision die-casting mold for two-stage turbocharger" The third prize of Municipal Science and Technology Progress Award.
The key technological innovations are:
1. For the E-booster volute of the two-stage turbocharger, a high-precision composite embedded inclined arc rotating slider mold has been developed to realize the one-time die-casting of complex and deep cavity products;
2. Developed the deformation control technology of tungsten alloy high thermal conductivity material, which greatly improved the service life of the mold;
3. Optimize the composition formula of aluminum alloy material (AlSi9Cu3) to improve the mechanical properties of the product;
4. Through the optimization of die-casting parameters, hierarchical control of injection force and flow is realized, and product quality is improved.
This technological innovation has authorized 2 invention patents and 7 utility model patents. This mold has achieved good economic benefits when ZJHS producing precision aluminum alloy structural parts:Turbocharger E-booster volute for many global leading tie-one auto parts manufacturers such as BorgWarner, Mahle Behr Thermal Systems (Qingdao) Co., Ltd., etc.