Dongguan, China – As industries push for lighter, more durable metal components capable of withstanding 120°C to 250°C operating temperatures and aggressive media like coolant and salt spray, JinYi Mold has officially released its new line of Heat-resistant, Corrosion-proof Aluminum Parts. Based on 25 years of mold design and precision manufacturing experience, the company delivers vertically integrated solutions covering high pressure aluminum die casting, post-casting thermal treatment, and five-axis CNC machining after die casting.
For engineers sourcing OEM aluminum die casting parts, the core challenge is maintaining dimensional stability and mechanical properties under thermal and corrosive stress. JinYi’s process control system, certified to IATF 16949, ensures each component meets direct assembly requirements without secondary rework. This makes JinYi a trusted made in China aluminum die casting supplier for turbocharger housings, battery trays, engine peripheral structural parts, and outdoor industrial equipment frames.
1. Engineered for Extreme Environments: Data-Backed Reliability
The new product line focuses on aluminum die casting for automotive industry applications where failure is not an option. Using alloys such as A380 (ADC12), AlSi9Cu3, and AlSi10Mg, JinYi controls hydrogen content below ≤1.5 ml/100g Al during melt degassing – reducing internal porosity by over 40% compared to industry averages. For parts requiring higher corrosion resistance, strontium (Sr) modification refines eutectic silicon morphology, improving toughness and fatigue life.
Key validation data includes:
Thermal cycling test: –40°C to +120°C, 500 cycles without cracking
Salt spray resistance: Hard anodized (50 μm oxide film) passes >1,000 hours neutral salt spray test
High-temperature tensile strength: Retains ≥85% of room-temperature yield strength at 150°C
These proven results confirm that OEM aluminum die casting parts from JinYi can replace heavier steel components while surviving harsh underhood and outdoor conditions.
2. High Pressure Aluminum Die Casting: Process Window with Local Extrusion
As a specialist in high pressure aluminum die casting, JinYi operates 600–1,200 ton clamping force machines with filling speeds of 40–100 m/s and casting pressures of 70–120 MPa. For wall thicknesses >5 mm or complex bearing seats, local extrusion and vacuum-assisted technology eliminate shrinkage cavities. This enables the parts to undergo T5 or T7 heat treatment without distortion – a critical requirement for aluminum die casting for automotive industry powertrain components.
Every die casting batch is monitored in real time for mold temperature, injection speed, and pressure. X-ray real-time imaging (X-Ray) checks internal shrinkage and pores on first pieces and regular intervals. This level of control is rarely found in a made in China aluminum die casting supplier without significant cost premium.
3. CNC Machining After Die Casting: ±0.05 mm Positioning Accuracy
Most die casting suppliers stop at blanks. JinYi, however, performs CNC machining after die casting using five-axis machining centers. By referencing process datums directly on the casting, the company completes end faces, bearing holes, threads, and sealing grooves in one setup – achieving positioning accuracy within Φ0.05 mm.
To prevent residual stress deformation, finite element analysis (FEA) simulates the machining process. The “roughing – stress relief – finishing” route controls deformation caused by internal stress release to ±0.1 mm per meter. For OEM aluminum die casting parts that must mate with other assemblies without shimming, this precision eliminates line-fit issues and reduces customer assembly time.
4. Surface Treatment & PPAP-Level Quality Assurance
Depending on application, JinYi offers chromate conversion coating (Alodine), sulfuric acid anodizing (up to 50 μm), or powder coating. For aluminum die casting for automotive industry engine compartment parts, thick film anodization is standard, and the sealed oxide film reliably exceeds 1,000 hours of neutral salt spray testing.
The entire quality system complies with automotive PPAP (Production Part Approval Process). Each batch of aluminum liquid undergoes spectral analysis. Critical dimensions on all OEM aluminum die casting parts pass 100% CMM inspection. Air tightness (leak detection), hardness (HBW), metallographic analysis, and tensile tests at both room temperature and 150°C are performed as required.
5. Why JinYi Mold Is Your Preferred Made in China Aluminum Die Casting Supplier
Unlike fragmented suppliers that outsource heat treatment or machining, JinYi Mold is a vertically integrated made in China aluminum die casting supplier. The company supports full-process services:
Mold design & manufacturing
High pressure aluminum die casting
Heat treatment (T5/T7)
CNC machining after die casting (five-axis)
Surface treatment & component assembly
This closed-loop capability allows rapid engineering changes and iteration support for aluminum die casting for automotive industry projects. Customers receive not just OEM aluminum die casting parts but a manufacturing partner with 25 years of die casting, mold, and assembly expertise.
Get Your Project Evaluation Today
If your application requires Heat-resistant, Corrosion-proof Aluminum Parts that maintain performance from –40°C to 250°C under salt spray and vibration, send your part drawings and performance specifications to JinYi’s engineering team. We provide a free manufacturing feasibility analysis and cost assessment.
Marketing Contact: Selina Chan
WhatsApp: +86 18969686504
Email: selina@jy-mould.com
Choose JinYi Mold – more than a supplier, a Chinese manufacturing partner with 25 years of proven excellence in mold design, manufacturing, and assembly.