Air tightness quality control

Infiltration process

The role of immersion equipment for die-casting aluminium products mainly lies in improving the quality and reliability of the products, which is reflected in the following aspects:

1. Plugging microporous: during the die-casting process, aluminium alloy castings are prone to microporous, shrinkage holes, loosening and other defects, which will lead to leakage of the casting when it is subjected to pressure or hydraulic pressure. By applying the infiltration process, the infiltration equipment uses the infiltration solution to fill and plug the micropores inside the casting, significantly reducing the leakage rate and improving the sealing of the casting.

2. Improve Strength and Durability: By filling defects within the casting and then hardening them, the infiltration solution reduces stress concentrations within the casting and increases the physical strength, allowing the product to be designed with thinner walls, while improving its overall durability and service life. 3. Reduce the scrap rate: by plugging the microporous, infiltration process can save the original castings facing scrap due to internal defects, significantly reduce production costs, improve the yield, while reducing the waste of resources, in line with the dual objectives of environmental protection and economic efficiency.

Airtightness testing equipment (air test)/Airtightness testing equipment (water test)

The application of gas-tightness testing equipment in die-casting aluminium alloy auto parts products has the following key roles:

1. Ensure the sealing performance: die-casting aluminium alloy auto parts, such as engine block, cylinder head, structural parts, bracket, transmission system components, etc., have very high requirements for sealing. Gas-tightness testing equipment can effectively detect the sealing performance of these parts after assembly, to ensure reliable operation under high pressure, high temperature or liquid or gas environment, to avoid leakage.

2. Enhance product quality: Through high-precision hermetic testing, tiny defects in the castings, such as pinholes, cracks, sparseness, etc., can be found in time, and these defects often affect the performance and service life of the components. Through inspection, unqualified products can be screened out to improve the overall batch quality.

3. Reduce the risk of recall: Leakage problems in automotive parts may lead to safety hazards, triggering recalls and bringing huge economic losses and brand reputation losses. The application of hermetic testing equipment helps to identify and eliminate potential problems before the product leaves the factory, reducing the risk of recall.

4. Improve production efficiency: modern airtightness testing equipment usually has automation and rapid detection capabilities, can be quickly completed in the production line testing, reducing manual intervention, improve testing efficiency, and accelerate the speed of product shipments.

5. Optimisation of manufacturing process: Through the feedback of airtightness test results, manufacturers can trace and analyse problems in the production process, optimise die-casting process parameters, mould design or post-processing steps, and continuously improve product quality and productivity.

6. environmental protection and safety: for parts involving oil circuit, cooling system, etc., good sealing prevents oil and coolant from leaking, which helps to protect the environment, while avoiding posing a threat to vehicle safety.

7. Meet regulatory requirements: automotive parts must meet industry standards and regulations on the strict requirements of the sealing, airtightness testing equipment is to ensure that the product meets the ISO, SAE, DOT and other international and regional standards is an important tool.

In summary, the airtightness testing equipment for die-casting aluminium alloy auto parts, is to ensure product safety, improve quality, improve production efficiency and meet the regulatory requirements of the important links, to enhance the overall performance of the car and user safety experience is of great significance.