This product is a key component of engine power transmission - front gear housing cover, which is made of ADC12 high fluidity die-casting aluminum alloy, molded in one piece by precision high-pressure die-casting process. While guaranteeing the manufacturability of complex thin-walled structure, it realizes both lightweight and high rigidity structural characteristics, effectively carries the flywheel transmission load and isolates the external impact to ensure the smooth and reliable operation of the engine timing system.The excellent fluidity of ADC12 material greatly enhances the degree of freedom of structural design, and it can be integrated with complex oil passages, sensor mounting blocks and reinforcement structures to provide lightweight and high-strength confinement for the power system. protection for the powertrain.
Technical Parameters
| parameter term | Technical indicators |
|---|---|
| casting pressure | 70-120MPa (high pressure die casting, real-time closed-loop control) |
| Mold temperature control | 180-260℃ (multi-point temperature control, accuracy ±5℃) |
| material grade | ADC12 (JIS H5302 standard) |
| tensile strength | ≥228 MPa (die-cast state) |
| yield strength | ≥150 MPa |
| elongation | ≥1.5% |
| durometer | ≥80 HBW |
| Dimensional accuracy | Class CT6 (ISO 8062 standard with localized features up to CT5) |
| surface treatment | Anodizing/powder coating/passivation/painting (optional) |
| Sealing requirements | Leakage rate ≤ 0.3 mL/min (dry hermetic detection/helium mass spectrometry optional) |
| Operating Temperature Range | -40°C to +150°C |
Quality Assurance System
Certified Endorsement:
- Conforms to IATF 16949 quality management system standards for the automotive industry
- ISO 9001 Quality Management System Certification
- ISO 14001 Environmental Management System Certification
Process Control:
- Real-time monitoring of the injection process: closed-loop control of injection speed, pressurization pressure and vacuum (optional vacuum die casting).
- Aluminum liquid quality control: gas content, spectral analysis of composition, thermal analysis of densification effect
- Automatic mold spraying control: ensures uniform mold release and thermal balance
Testing Standards:
- 100% coordinate inspection: key mounting surface and bearing hole accuracy ≤ 0.05mm
- X-ray non-destructive testing: internal porosity, shrinkage determination, in accordance with ASTM E505 standards
- Air tightness test: 100% online dry leakage test, simulating the actual working condition pressure
- Dynamic balance test: Unevenness ≤ 10g-mm/kg (for flywheel mounting stop)
- Metallographic Organization Inspection: Primary Crystal Silicon Size, Acicular Iron Phase Morphology Control
application scenario
Passenger Car and Commercial Vehicle Engines
Widely used in naturally aspirated and turbocharged gasoline/diesel engines, the high fluidity of ADC12 material can realize thin-wall lightweight design with wall thickness as low as 1.5mm, reducing weight by 40%~50% compared with cast iron, and at the same time, meeting the structural stability of the engine compartment under high temperature vibration working conditions.
New Energy Vehicle Range Extender
Adapted to the engine system of the programmable electric vehicle, the ultimate lightweight helps reduce the energy consumption of the whole vehicle, and the excellent thermal conductivity (96 W/m-K) can quickly dissipate the heat transferred from the generator side and improve the reliability of the continuous operation of the range extender.
Small general-purpose gasoline engine
Applied to garden machinery, small generator sets and other equipment, die casting surface finish is high, machine-free parts up to Ra 3.2μm, taking into account the appearance of quality and economy.
marine outboard
ADC12 has excellent salt water corrosion resistance and can adapt to high humidity and high salt spray environment through passivation treatment, which guarantees the long-term stable operation of outboard engine drive system.
Technical Highlights
Highly Dense Pressure Injection Process
Using high-speed filling and local pressurization and shrinkage technology, significantly reduce the microscopic pores inside the die casting, ADC12 material by vacuum die casting to assist in density enhancement, can meet the ≤ 0.3mL/min harsh sealing requirements, to support the direct application of non-impregnation.
Thin-walled and lightweight structural design
Based on the excellent mobility of ADC12, it realizes the complex mesh rib structure with a minimum wall thickness of 1.2~1.8mm, and reduces the weight of 12%~18% compared with the conventional casting aluminum alloy, and at the same time ensures that the dynamic stiffness meets the NVH indexes.
Integrated Functionality Consolidation
Features such as the oil dipstick conduit, crankshaft position sensor mount, and high-pressure oil pump drive window are molded in one piece, which reduces the number of parts and secondary processing costs, and improves assembly efficiency.
Corrosion-resistant surface treatment system
It is suitable for multi-level protection solutions such as anodic oxidation, micro-arc oxidation and high corrosion-resistant coating, and passes the neutral salt spray test for ≥240 hours to meet the anti-corrosion needs of the engine compartment in its entire life cycle.
Digitized full-process quality control
From CAE simulation optimization of mold flow path (Flow-3D/AnyCasting), real-time parameter acquisition of die casting island, to online SPC monitoring of machining automation production line, the whole process of digital traceability is realized to ensure the consistency of high-volume supply.
