Ceramic alloy lubricating oil special for dredging workboat engine and preparation method thereof

Abstract

The invention relates to ceramic alloy lubricating oil special for a dredging workboat engine, which consists of the following components in percentage by weight: 1 to 6 percent of ceramic alloy coupling agent, 75 to 85 percent of base oil, 0.1 to 0.5 percent of pour point depressant, 7 to 13 percent of viscosity index improver, 4 to 7 percent of complexing agent and 200 to 400ppm of non-silicon anti-foaming agent. In addition, the invention also discloses a preparation method thereof. The ceramic alloy lubricating oil forms a ceramic alloy material layer on the metal friction surface in a high-energy mechanical alloying ceramic alloy coupling mode, improves extreme pressure abrasive resistance of the lubricating oil, and has excellent functions of lubrication, protection, energy conservation and emission reduction, and the oil-saving rate of 3 to 8 percent.

Description

technical field [0001] The invention relates to the technical field of lubrication, in particular to a special ceramic alloy lubricating oil for a dredging engineering ship engine and a preparation method thereof. Background technique [0002] Metal wear, metal corrosion, and metal fatigue are the three major causes of mechanical equipment damage. According to statistics from international authoritative organizations, "the three major losses of metal materials account for about 30% of the total industrial output value." The economic loss caused by maintenance, etc. is equivalent to 10% of the current (?) China's entire GDP. [0003] According to the "National Coastal Port Layout Plan" recently issued by the Ministry of Communications, China's port construction has entered a period of leapfrog development during the "Eleventh Five-Year Plan" period. By 2010, the throughput capacity of coastal ports will reach 3 billion tons. However, at present, there is a shortage of natura...

AI Technical Summary

Problems solved by technology

U.S. Patent No. 4,844,825 discloses an extreme pressure additive based on chlorinated petroleum wax, which can effectively improve the lubrication and anti-friction performance of internal combustion engines. However, in order to neutralize the metal corrosion caused by chlorides, a large amount of alkaline sulfonic acid must be added Salt, so that the sulfur content cannot be lower than 1%

US Patent US7,423,000 discloses an extreme pressure additive that does not contain phosphorus and metal compounds, but the use of sulfur-containing additives is unavoidable

U.S. Patent No. 6,588,393 discloses a metal phosphate compound extreme pressure additive with low sulfur content (5-250ppm). Although the sulfur content is extremely low, the phosphorus content cannot meet the GF-4 and GF-5 standards

[0006] Although adding the above additives to the lubricating oil can achieve the anti-wear effect, but the above additives have their own shortcomings. After adding the lubricating oil, the lubricating oil cannot meet the national standards, for example, easy to precipitate, easy to corrode, high sulfur and phosphorus content, etc.

[0007] The dredger itself belongs to high energy consumption, high risk, high profit, and operates in a working environment with heavy load and harsh working conditions. Although it uses traditional lubricating oil products (such as Shell, Mobil, Great Wall, Kunlun, etc.), However, because the traditional lubricating oil cannot fundamentally change the defects of the engine material itself, the main outstanding problems are: high noise and vibration of the engine, serious wear, poor power output, high fuel consumption, frequent maintenance, and serious reduction Work efficiency affects the economic benefits of the enterprise

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