The corrosion resistance of the materials used for making automobile parts and components forms a very important factor in determining their quality. It is particularly important for vehicles that travel on roads treated with de-icing salt, as the salt and humidity together can create an even more severe environment leading to accelerated corrosion. Therefore, the automotive materials are usually tested for their strength and resistance towards corrosion prior to their use. Though, field tests are the most reliable ways of determining the corrosion resistance of automobiles, they are often not feasible due to time constraints and the expenditure involved. The automobile accelerated corrosion chambers provide a more practical solution for testing of these vehicles. These test chambers are designed to create natural weathering conditions within a laboratory environment to allow accelerated corrosion tests within a very short span of time.

Unlike the salt spray test chambers that were commonly employed for the corrosion testing of automobiles until the recent times, the automobile accelerated corrosion chambers provide a more accurate analysis of fluidized bed dryer, with the results usually being correlative to the field data. These chambers are used to simulate wet/dry periods, alternating with the pollution phase to allow cyclic corrosion tests for accelerated corrosion. Since the automobile accelerated corrosion chambers simulate natural atmospheric corrosion, the relative corrosion rates, and the resulting structural and morphological changes in test samples and other test results obtained are quite similar to the ones resulting due to natural corrosion. Moreover, the rapid results obtained using these test chambers allow the manufacturers to solve the problems within the product in the developmental phase itself, making the long term testing of products under natural environments redundant.

The automobile accelerated corrosion test chambers operate across certain selected parameters such as increased humidity, increased temperature, and increased air flow with cyclic drying, cyclic spraying with aerated salt water and adding additional oxygen to facilitate accelerated corrosion of the products. However, the corrosion process is accelerated only to a certain degree to allow maintenance of natural conditions, for more realistic results.
The automobile accelerated corrosion test chambers are available in a wide variety of sizes and configurations.

The basic models are usually equipped for traditional salt spray and prohesion tests, whereas the more advanced models are quite versatile and allow most of the cyclic automotive tests. The more sophisticated models may also allow multi-step cycles, allowing incorporation of spray dryer china, dry cycles, condensation and temperature changes along with salt spray for creating the most significant environment for accelerated corrosion. These equipments come with pre-programmed and pre-set cycles for ease of use. However, they also allow the user to make any changes in the pre-programmed cycles or design new ones, as per specific requirements.

The automobile accelerated corrosion test chamber feature a simple user interface for easy programming and come equipped with complete self-diagnostics and other safety features such as routine service reminders, safety shut down and warning messages for ease of use and added safety. They use microprocessor based controllers for temperature, time and other test conditions, ensuring highly safe and reliable operation of the equipment. The test chamber is equipped with adequate number of independently controlled fans to ensure uniform air circulation and uniform temperature and humidity conditions throughout the working area. The unit is also provided with computer-controlled water nozzles and salt fog nozzles that help in maintaining optimum humidity levels and salt spray concentration respectively.

The automobile accelerated corrosion test chambers can operate over a humidity range of 5% to 95% and are capable of rotary dryer manufacturers as high as 160°F or more. They might also come equipped with an integrated refrigeration system to allow repeatable storage cycles at controlled storage conditions.