In the automotive manufacturing industry, automotive components need to have good corrosion resistance to cope with various complex and harsh usage environments.salt spray test chamberLike a behind the scenes' quality guardian ', he excels in the field of automotive parts. How does it help improve the quality of automotive components and ensure the safe and stable operation of vehicles? The Hubei Gaotian experimental equipment will unveil its mysteries for you.

1、 Engine component inspection

1. Cylinder block and cylinder head:The engine cylinder block and cylinder head are mostly made of metal materials, which may come into contact with air and water vapor containing salt during the operation of the car. The salt spray testing machine can simulate high salt spray environments in coastal areas and conduct salt spray corrosion tests on cylinder blocks and cylinder heads. By observing the corrosion situation on the surface of the cylinder block and cylinder head after the experiment, such as whether there are rust spots, corrosion pits, etc., the corrosion resistance performance is evaluated. If corrosion problems are found, improvements can be made in material selection, surface treatment processes, etc., such as using more corrosion-resistant alloy materials, or optimizing surface protection processes such as electroplating and painting, to improve the service life of the cylinder block and cylinder head in harsh environments.

2. Crankshaft and Camshaft:The crankshaft and camshaft are key moving parts of the engine, and their surface corrosion resistance directly affects the reliability and durability of the engine. Using a salt spray testing machine to conduct salt spray tests on crankshafts and camshafts can detect their corrosion resistance in salt spray environments. After the experiment, by analyzing the microstructure of the shaft surface, the influence of corrosion on its mechanical properties can be understood. If corrosion occurs on the shaft surface, it may lead to increased wear and decreased accuracy, affecting the normal operation of the engine. Therefore, through salt spray testing, it can guide enterprises to improve the manufacturing process and protective measures of shafts, ensuring their long-term stable operation in salt spray environments.

2、 Chassis component inspection

1. Suspension system components:The shock absorbers, springs, and other components in car suspension systems are susceptible to salt spray erosion when exposed to outdoor environments for a long time. The salt spray testing machine can simulate different degrees of salt spray environment and test these components. For example, by conducting a salt spray test on the shock absorber, the corrosion on the surface of the piston rod can be observed, as corrosion of the piston rod may cause oil leakage from the shock absorber and affect the performance of the suspension system. For springs, salt spray testing can detect whether their elasticity and strength have decreased due to corrosion. According to the test results, enterprises can optimize the materials and anti-corrosion coatings of suspension system components, improve their reliability in harsh environments, and ensure the safety and comfort of car driving.

2. Components of the braking system:Brake system components such as brake discs and brake calipers are crucial for the safety of car driving. In some coastal areas or on roads that use snowmelt salt during winter, these components are susceptible to salt spray corrosion. Using a salt spray testing machine to conduct salt spray tests on brake system components can evaluate their corrosion resistance performance. If there is corrosion on the surface of the brake disc, it will affect the braking effect and increase the braking distance. Through salt spray testing, enterprises can be encouraged to use more corrosion-resistant materials to manufacture brake system components or strengthen surface protection treatments, such as special galvanizing, spraying, and other processes, to ensure the reliability of the brake system in salt spray environments and ensure driving safety.

3、 Vehicle parts inspection

1. Vehicle body frame:As the main structure of a car, the corrosion resistance of the body frame directly affects the overall safety and service life of the car. The salt spray testing machine can simulate the salt spray situations that cars may encounter in different usage environments and test the body frame. Evaluate the rationality of the anti-corrosion design and manufacturing process by observing the corrosion situation of key parts of the vehicle body frame, such as welding points and seams. If corrosion occurs at the welding points, it may weaken the strength of the vehicle frame and affect the safety performance of the car in the event of a collision. Based on the results of the salt spray test, enterprises can improve the welding process of the vehicle body frame, use higher quality anti-corrosion materials, or add anti-corrosion coatings on the surface of the vehicle body frame to enhance its corrosion resistance.

2. Doors and engine hood:The car doors and engine hood are directly exposed to the external environment and are susceptible to salt spray erosion. The salt spray testing machine can conduct salt spray tests on the materials and surface coatings of car doors and engine covers to test their corrosion resistance. For example, observe the adhesion, blistering, peeling, and other conditions of the surface coating of the car door and hood after salt spray testing to evaluate the protective effect of the coating. If there is a problem with the coating, it will cause rusting of the underlying metal materials, affecting the appearance and service life of the vehicle. Through salt spray testing, enterprises can optimize the surface treatment process of car doors and engine covers, select higher quality coating materials, enhance their corrosion resistance, and maintain the beauty and integrity of the vehicle's appearance.

4、 Electrical system component inspection

1. Electronic Control Unit (ECU) casing:The electronic control unit (ECU) of a car is the core control system of the car, and its casing needs to have good corrosion resistance to protect internal electronic components from external environmental influences. The salt spray testing machine can perform salt spray testing on the ECU housing to test its sealing performance and corrosion resistance in a salt spray environment. If the ECU casing is not tightly sealed, salt spray may enter the interior, corrode electronic components, and cause ECU failure. Through salt spray testing, enterprises can improve the design and manufacturing process of ECU housings, enhance their sealing performance and corrosion resistance of housing materials, and ensure stable operation of ECUs in harsh environments.

2. Wiring harness connectors:Automotive wiring harness connectors connect various electrical equipment and are prone to corrosion in humid and salty environments, leading to poor contact and affecting the normal operation of the automotive electrical system. Use a salt spray testing machine to conduct salt spray tests on automotive wiring harness joints, observing the corrosion on the joint surface and changes in contact resistance. If the joint corrodes, the contact resistance will increase, which may cause poor signal transmission or malfunction of electrical equipment. According to the salt spray test results, enterprises can choose more corrosion-resistant materials to manufacture wire harness connectors, or perform special anti-corrosion treatment on the connectors, such as coating with anti-corrosion coatings, to ensure the reliability of wire harness connectors in salt spray environments and ensure the stable operation of automotive electrical systems.

In conclusion,salt spray test chamberIt plays an important role in the inspection of automotive parts. By simulating salt spray environments, various types of automotive parts are tested for their corrosion resistance, helping companies identify problems, improve product design and manufacturing processes, enhance the quality and reliability of automotive parts, and ultimately improve the performance and safety of the entire vehicle.