Key Points of Quality and Safety Control for Chemical Liquid Corrosive Tank Trucks

In the field of chemical product transportation, chemical liquid corrosive tank trucks play a crucial role. However, due to the corrosive nature of the chemical liquids they transport, once quality and safety issues occur, the consequences can be disastrous. Therefore, strict quality and safety control of such tank trucks is of utmost importance. Our company has always been in awe of the design and production of tank trucks.

Strict Selection of Tank Body Materials

The materials of the tank body directly determine the corrosion resistance and service life of the tank truck. For tank trucks transporting chemical corrosive liquids, suitable metal materials must be selected, such as stainless steel 316L, which contains molybdenum elements and can significantly enhance the material's resistance to pitting corrosion and crevice corrosion. At the same time, strict testing of various performance indicators of the materials, including chemical composition analysis, mechanical property testing, etc., should be carried out to ensure that the materials meet national standards and industry specifications.

Optimized Consideration of Tank Body Design

A reasonable tank body design can effectively reduce corrosion risks and potential safety hazards during transportation. The structural design of the tank body should fully consider the flow characteristics of the liquid to avoid areas of local stress concentration. These areas are more prone to rupture under the combined action of chemical corrosion and mechanical stress. For example, an aerodynamic internal structure can be adopted to reduce the turbulence of the liquid in the tank and the scouring corrosion of the tank wall. In addition, reasonable interfaces for safety accessories such as level gauges and safety valves should be set up to ensure the accurate installation and normal operation of the safety accessories.

Fine Control of the Production Process

During the production process of tank trucks, the welding process is a key link affecting quality. Welding personnel must possess professional qualifications and adopt appropriate welding process parameters, such as welding current, voltage, welding speed, etc. After welding, strict non-destructive testing of the welds, such as ultrasonic testing, radiographic testing, etc., should be carried out to ensure that there are no cracks, pores, slag inclusions and other defects in the welds. At the same time, the surface treatment of the tank body cannot be ignored. For example, passivation treatment can be carried out to form a dense protective film on the surface of the tank body, further improving the corrosion resistance.

Strict Testing of Safety Accessories

Safety accessories are an important guarantee for the safe operation of tank trucks. The level gauge should be able to accurately display the liquid level in the tank, and the error should be controlled within the specified range. The safety valve should undergo strict pressure setting and sealing performance testing to ensure that it can be opened in time to relieve pressure when the pressure in the tank exceeds the set value, and maintain good sealing performance under normal working pressure. In addition, other safety accessories such as emergency cut-off valves should also be strictly tested and regularly maintained in accordance with relevant standards.

The quality and safety control of chemical liquid corrosive tank trucks is a systematic project that requires strict control of every link, from the tank body materials, design, production process to safety accessories. Only in this way can the safety and reliability of tank trucks during the transportation of chemical corrosive liquids be ensured, and provide strong support for the development of the chemical industry.