Bearing grease and rust common use
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| Time：2016.08.30 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Depending on the properties and uses, bearing anti-rust oil in the country can be divided into the following categories:
1, anti-rust oil replacement bearing replacement bearings rust oil generally has a strong adsorption sulfonate as the main anti-rust agents, metal surface can be replaced with the buildup of moisture and sweat, to prevent corrosion caused by human sweat, while itself adsorption to metal surfaces and generate strong protective film to prevent the ingress of foreign corrosive media. Therefore, a large surface pretreatment for rust-process and long-term anti-rust ago. There are many replacement bearings rust oil can be used directly for storage rust. When using the available petroleum solvents such as kerosene or gasoline to dilute, so sometimes these bearings in certain types of anti-rust oil are also solvent dilution type rust preventive oil bearing range, due to the evaporation of the solvent, should pay attention to issues such as the use of fire ventilation.
According to the domestic replacement bearings rust oil SH0367-92 standard provisions, such oil into No. 1, No. 2, No. 3 and No. 4. Wherein the No. 1, No. 2, No. 3 oil, mainly used for all kinds of metal products and parts packing seal, and there are some people who sweat in silence transsexual. No. 1 oil for ferrous metals. No. 2 oil for ferrous metals and copper, No. 3 oil for ferrous and nonferrous metals. No. 1, No. 2, No. 3 oil diluted with petroleum solvents can be used as a step between the seal oil, No. 4 oil sweat wash oil, used for inter-process cleaning rust.
2, solvent dilution type rust preventive oil bearing such bearings rust oil containing volatile petroleum solvent, or at room temperature, diluted with solvent use. It includes solvent dilution subdural anti-rust oil bearing, bearing solvent dilution type soft film anti-rust oil, solvent dilution type rust oil replacement bearings. These bearings rust oil applied to the metal surface, will naturally evaporate the solvent to form a uniform layer of protective film. If the film forming material is bitumen, resins (e.g., alkylphenol resin, amino, methyl t-butyl phenol acetate resins, petroleum resins, etc.), then the solvent is volatilized forming hard film, generally sticky, sticky dust impurities, wiping, transparent or opaque film indelible, petroleum solvents such as gasoline is very easily washed. Generally used in large-scale machinery and equipment surface rust, and some can even be used for outdoor storage under conditions of storage of raw materials and equipment. But after its drawback is that you must be solvent evaporation, allowed contact with each other and packaging, otherwise they will stick together. It applies only to the simple structure of the workpiece. For the complex structure of the workpiece with a small hole in mass production, small pieces do not apply, should not be used as an internal storage. If the film-forming material is a lipid membrane such as general lanolin and its derivatives, wax, petrolatum, and barium oxide soap stone oil is formed after evaporation of the solvent is a soft film that film. It is relatively soft, you can wipe erased. Such oils can be used as long-term storage of oil, it requires a certain thickness, good rust resistance, but unblocking more difficult. Currently used storage replacement bearings rust oil, such as 204-1,664,901 other brands, mostly with the use of oil diluted with a solvent, mostly on the metal surface to form a soft film, which can actually see it as a solvent dilution type soft film of oil. In order to overcome the adhesion of the film relatively soft film of oil in prison, unsealed difficult shortcomings, it is currently moving in the direction of a thin layer of oil development that is appropriate for the resin film formers, making it thin, transparent, efficient soft membrane bearing anti-rust oil.
Solvent dilution type rust preventive oil bearing petrochemical industry standards SH0366-92, national standards GB4879-85B2, divided into No. 1 - dura, suitable for indoor and outdoor long-term storage; 2 - soft film, suitable for indoor long-term storage ; No. 3 - water displacement type soft film, disposable water, suitable for indoor metal rust; No. 4 - is not transparent adhesive film.
3, anti-rust oil seal bearing oil seal bearing rust coating having a room temperature, without solvents, thin film, can be used for inter-process rust and long-term storage, and lubricants have good compatibility, and so do not need cleaning unsealed. Usually divided into immersion type and coating type two.
(1) immersion type products can be fully submerged filled plastic bottle bearing anti-rust oil seal, oil mass fraction of 2% or less of the inhibitor can be, but often need to add antioxidants to make oil not to oxidative deterioration.
(2) coated with a thin layer of oil type can be used directly in the coated variety. Oil must be added more corrosion inhibitors, and the need to use several types of corrosion inhibitor compound, and sometimes need to join a thickener, such as polyisobutylene, in order to improve film adhesion. When used with packaging, it can be used for long-term indoor storage, rust good effect.
Anti-rust oil seal bearing the national standard GB4879-85 B3.
According to national standards, the oil is divided into three categories: Category I for ferrous metals; Class II for ferrous metals and copper alloys; Class III for ferrous metals, copper alloy, magnesium alloy and aluminum alloy. Depending on the viscosity of the oil, various types can be divided into light, medium, heavy three, that at 50 ℃ kinematic viscosity were less than 10mm2 / s (low viscosity), (20 ± 10) mm2 / s (medium viscosity), (50 ± 20) mm2 / s (high viscosity). Light bearings rust oil is mainly used in aviation mechanical parts and electronic equipment, precision instruments, small arms, navigation compass and other small precision instrumentation equipment, from rust and lubrication. These bearings rust oil is generally common summer and winter, and therefore have a lower freezing point. Intermediate bearing anti-rust oil is mainly used for storage of medium-sized mechanical parts, but also both rust and lubricating dual role. Its temperature is generally room temperature, it can also be used at a low temperature of about -20 ℃. Heavy bearing anti-rust oil is mainly used for large equipment lubrication, rust, generally apply only to normal temperature.
4, bearing anti-rust oil emulsion type which contains a rust inhibitor, emulsifier oil. When diluted with water becomes an emulsion using, so called anti-rust oil emulsion-type bearings. It has a low cost, safety, reduce environmental pollution, energy conservation, and other characteristics. It will be applied to the metal surface until after the water evaporates to form a protective film, currently used for inter-process rust, it can also be used as a long-term storage.
Standard domestic oil emulsion rust bearings for GB4879-85 B4.
5, two anti-rust lubricating oil which is lubricating and rust dual nature of the so-called two oil, after unsealing the requirements, you can not remove the oil seal and direct installation. After the test or do not have the other for oil, that test oil seal products, the general need for lubrication or seal system. Therefore, depending on the application, can be divided into an internal combustion engine bearing anti-rust oil, hydraulic bearings rust oil, spindle oil, gear oil, air compressor oil, instrumentation and bearings rust oil, rust test oil. The internal combustion engine bearing anti-rust oil is mainly used in aircraft, automobiles and various types of engine rust; hydraulic bearing anti-rust oil is mainly used for storage rust hydraulic systems and other equipment, machine tools and hydraulic cylinder; instrumentation and bearings rust oil varieties more, and both have some lubrication. General requirements for low base oil viscosity, high degree of purification, anti-rust additive amount of mass fraction of 3% -5%, with better low temperature stability, low volatility and good characteristics such as removing oil film, suitable for a variety of metal use .
At present, China national standards rust lubricant rust lubricant standard GB4879-85 B5, rust grease standard GB4879-85 B6, anti-rust oil hydraulic bearing standard GB4879-85 B7, anti-rust engine oil standard GB4879-85 B8.
6, in the industrial rust grease Vaseline or paraffin, wax, oil and other petroleum wax-based anti-rust additives made by adding an ointment substance. Usually the main square with hot coating formula for archiving. Which is characterized by an oil film thickness (typically about 0.01-0.2mm, even 0.2-1mm), high film strength, easy to drain and volatile, rust period of up to more than 2 years, widely used in machinery products, long-term storage of large equipment . The disadvantage is that the oil seal, when seal initiation are to be heated, require good thermal stability and oxidation stability.
In order to overcome the above drawbacks, it has a cold Grease trial. Its characteristics are relatively soft at room temperature, the penetration is generally 200mm or more, when used without heating, direct brush, rust resistance is also very good, relatively safe and convenient to use, is promising varieties. Petrochemicals stone oil-based rust grease standard SH0366-92. The rust grease into No. 1, No. 2 and No. 3. No. 1 is the cold greased, for ferrous metals, used for general precision machinery parts stock long-term anti-rust, it can be applied at room temperature or heating the coated; No. 2 for ferrous metals mechanical components and short-term rust outdoors long-term indoor rust, requires heating the coated; No. 3 is suitable for long-term indoor and outdoor short-term rust rust ferrous metals and copper pieces.
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