How to improve the durability and corrosion resistance of Engine Low-Pressure Oil Pipe?

Improving the durability and corrosion resistance of Engine Low-Pressure Oil Pipe is the key to ensuring its stable and safe operation in long-term use. Since engine low-pressure oil pipes are usually exposed to harsh working environments such as high temperatures, chemicals, and mechanical wear, their material properties, design, and production processes need to be optimized for these factors. Here are a few common ways to improve the durability and corrosion resistance of oil pipes:

Material selection is one of the most important factors affecting the durability and corrosion resistance of oil pipes. Different materials have different physical and chemical properties. Choosing appropriate materials can effectively extend the service life of oil pipes.
Stainless steel is a common corrosion-resistant material with excellent corrosion resistance, high temperature resistance and strength, and is suitable for high temperature and high humidity environments. Using stainless steel to make low-pressure oil pipes can significantly improve the corrosion resistance and durability of the oil pipes.
Polyurethane material has good wear resistance, chemical resistance and elasticity, and is suitable for the transportation of liquids such as lubricating oil and fuel. The low friction characteristics of PU material make the oil pipe have better wear resistance, resist aging to a certain extent, and can adapt to different environmental conditions.
Synthetic rubber, such as chloroprene (CR) and butyl rubber (IIR), has good oil resistance, corrosion resistance and aging resistance. Synthetic rubber can effectively prevent oil pipes from problems such as brittleness and leakage due to chemical corrosion and aging.
Fluorine rubber (such as Viton) has excellent high temperature resistance, corrosion resistance, and chemical resistance. It is especially suitable for transporting oil under high temperature and high pressure, especially in extreme environments.
On the basis of traditional materials, adding reinforcing materials (such as carbon fiber, glass fiber, etc.) can improve the corrosion resistance, wear resistance and tensile strength of oil pipes. These composites can also reduce material aging while improving mechanical strength.
Coatings can effectively improve the corrosion resistance of oil pipes and extend their service life. By applying a protective coating to the surface of the oil pipe, its resistance to corrosion and wear can be enhanced.
Applying a layer of anti-corrosion coating (such as epoxy resin coating, polyurethane coating, ceramic coating, etc.) on the surface of the oil pipe can effectively prevent the oil pipe surface from coming into contact with external corrosive substances, thereby improving corrosion resistance. Anti-corrosion coatings also provide additional wear protection and reduce mechanical wear.
For metal oil pipes, galvanizing is a common anti-corrosion method. By covering the surface of the oil pipe with a layer of zinc, corrosion of the metal by the external environment can be effectively prevented, especially in humid or marine climate environments.

Polyethylene coating can enhance the UV resistance of oil pipes and prevent aging problems caused by UV exposure. For outdoor or sunny environments, a polyethylene coating provides an effective layer of protection.
For oil pipes in high temperature and highly corrosive environments, ceramic coatings can be used. Ceramic materials have strong wear resistance and corrosion resistance, which can effectively improve the durability of oil pipes in harsh environments.
By optimizing the production process, the structural strength, aging resistance and corrosion resistance of oil pipes can be improved. The following are several important suggestions for optimization of production processes:
High-temperature treatment (such as heat treatment or vulcanization) of oil pipes during the production process can increase the hardness and strength of the material, thereby improving the durability of the oil pipes. At the same time, high temperature treatment can also improve the corrosion resistance of materials.
Precisely controlling the temperature and pressure during production can make the molecular structure of the oil pipe material more stable, thereby enhancing the oil pipe's ability to withstand high temperatures and chemical corrosion.
Using the inner and outer coating process, especially for synthetic rubber or plastic oil pipes, the protective layer can effectively prevent the influence of external corrosion factors. Coating uniformity and adhesion are critical to improving corrosion resistance.
Regularly checking the working status, corrosion degree and whether there are problems such as aging and cracks of oil pipes is an important step in ensuring the long-term durability of low-pressure oil pipes.
Dirt, oil stains, impurities, etc. on the inner and outer walls of the oil pipe may cause corrosion or wear to the oil pipe material. Cleaning oil pipes regularly can prevent corrosion or poor flow caused by oil accumulation.
Carry out pressure and flow tests regularly to ensure that there are no blockages, leaks or other problems in the oil pipes. Signs of oil pipe aging or damage can be detected in advance through pressure testing.
Regularly check whether there are cracks, wear, corrosion marks and other problems on the surface of the oil pipe. If you find that the coating of the oil pipe has peeled off and the metal is exposed, repair the coating in time to prevent further corrosion.
Oil pipes that have been severely corroded or damaged should be replaced in time to prevent oil pipe rupture or leakage from affecting the normal operation of the engine.

Through reasonable selection of highly corrosion-resistant materials, coating with anti-corrosion layers, optimized design, and regular maintenance, the service life of oil pipes can be significantly extended and oil pipe failures caused by corrosion and wear can be reduced.