In 2010, Dongfeng Castrol Oil Products Co., Ltd. obtained a new generation of organic and environment-friendly antifreeze products tailored for heavy-duty engines such as Dongfeng commercial vehicle Renault DCI-11 (product code DF-4 antifreeze) and obtained Dongfeng's scientific and technological progress. Second Prize, Awarded Project Name: Development and application of environment-friendly coolant for engines.
Environmental protection heavy-duty engine coolant fills the domestic gap
DF-4 antifreeze is a new generation of antifreeze developed by Dongfeng Castrol Oil Products Co., Ltd. and Dongfeng Automobile Co., Ltd. Commercial Vehicle Technology Center Institute of Technology. The product quality is equivalent to the same type of antifreeze imported from abroad. According to the Dongfeng Automobile Co., Ltd. Technical Center, Dongfeng Castrol Oil Products Co., Ltd. is the first antifreeze manufacturer in China that has passed the Heavy Duty Wet Steel Sleeve Engine Bench Test of the automotive OEM.
Dongfeng Castrol, leader in engine coolant technology
Dongfeng Castrol Oil Products Co., Ltd. is one of the largest professional antifreeze manufacturers in China. It is a leader in engine coolant technology and provides a series of products suitable for light commercial vehicles, wet steel jackets, heavy duty commercial vehicles, and passenger vehicles. Level, multi-standard antifreeze for vehicles and antifreeze for construction machinery. Dongfeng Castrol has established strategic partnerships with many famous automobile manufacturers, including Dongfeng Motor Co., Ltd., Shenlong Motor Co., Dongfeng Passenger Vehicle Co., Ltd., Chunan Vehicle Co., Ltd., Dongfeng Motor Co., Ltd., and Dongfeng Off-Road Vehicle Co., Ltd. The company, etc., its antifreeze has also become the loading and after-sales service products of these vehicle manufacturers.
With the rapid development of China's national economy, the heavy truck market has also shown a steady upward trend. As heavy-duty vehicle engines mostly use booster technology, the maximum effective combustion pressure of the cylinder is more than double the normal diesel engine, the output power is large, and the heat generated by the combustion is also large. Generally, 33% of the heat is distributed by the coolant. Therefore, Cooling system cooling requirements are high. Heavy-duty engines are long-term internal combustion engines operating at or near maximum load. Because of the heat dissipation requirements, most heavy-duty engines use wet cylinder liners, and the outer surface of the liner is in direct contact with the coolant. In addition to the large output power, the displacement of the engine is required to be large. Therefore, the diameter of the cylinder liner is large, the rigidity of the cylinder liner is poor, the vibration in the work is frequent and severe, and the cylinder liner is prone to cavitation corrosion, so the antifreeze fluid is required to have good Anti-cavitation performance.
At present, there are mainly two types of heavy duty engine coolants in foreign countries. First, heavy-duty engine coolant that does not require Supplemental Additive (SCA) is added. This heavy-duty engine coolant does not require any supplemental additives before and during use. It can be used directly by heavy-duty engines until Replace the engine coolant again. Secondly, the SCA, which can inhibit the pitting (cavitation) perforation of cylinder liners of heavy-duty engines, is added to the coolant fluid of high-quality automotive engines with low silicate content represented by the United States, and is used for heavy-duty engines. During use, a certain amount of SCA must be added regularly during use. At present, the most commonly used heavy-duty engine fluid in China is the second heavy-duty engine coolant, represented by the Cummins engine. Most users do not know how to add additives during actual use. They are difficult to determine whether and when antifreezes need to be supplemented. As a result, premature engine damage or frequent use of SCA increases the user's cost of use.
The unique technical charm of environment-friendly heavy-duty engine coolant
Dongfeng Castrol's existing advanced antifreeze products are all organic additive (OAT) types. Compared with traditional additive technologies, they have a longer life and can better protect the engine and cooling system.
Dongfeng Castrol's DF-4 antifreeze product is designed for heavy-duty engines with wet steel jackets. It uses organic carboxylic acid reaction technology (OAT technology) and does not require any supplemental additives at all. The antifreeze solution adopts an all-organic long-acting environmental protection formula. The additive has a variety of functions and contains no nitrite, borate, and phosphate harmful to the human body and the environment. It is harmless to the environment and human body and can be degraded.
The 1000-hour thermal shock bench test of the engine department of Dongfeng Commercial Vehicle Technology Center indicated that the DF-4 antifreeze has excellent anti-cavitation erosion function; the water tank test of Qingdao Dongyang Radiator Co., Ltd. verified the Dongfeng Castrol DF-4 antifreeze energy. Provide excellent protection for aluminum tanks. It has a unique formula that will form a special adsorption film on the metal surface, tightly attached to the metal surface, effectively prevent the corrosion of metal components, so that the engine cooling system can be good in any journey, any road section, any environment protection.
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Name |
Power bank printer |
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Print head |
DX5 |
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Printer size |
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Printing speed |
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Printng resolution |
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Nozzles |
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Interface |
USB2.0 |
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Printer size |
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Height adjustment |
Automatic |
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