How to calculate the anti-rust time of Anti-rust Oil? Anti-rust oil is a kind of rust-proof oil solvent with reddish-brown function. The oil solvent is composed of Corrosion Inhibitor, Base Oil and auxiliary additives. According to different uses, it can be divided into oil solvents that can remove fingerprints, oil solvents that can be diluted with water, oil solvents that can be diluted with solvents, and anti-rust oil solvents that can be lubricated. Anti-rust oil is composed of oil-soluble corrosion inhibitor, base oil and auxiliary additives. According to the performance and use, it can be divided into: fingerprint removal type anti-rust oil, water dilution type anti-rust oil; Solvent dilution type anti-rust oil, anti-rust lubrication oil; Replacement type anti-rust oil, thin layer oil, anti-rust grease.
How long is the rust prevention time usually? A: The rust prevention time of anti-rust oil is usually 1-3 years, the rust prevention period of steel parts after dehydration of anti-rust oil reaches 4 to 6 months, cast iron, copper and aluminum parts 2 to 3 months. Anti-rust oil is generally determined according to the needs of the workpiece, and the anti-rust cycle of different anti-rust oil is different. The rust prevention cycle of hard mold anti-rust oil is about 2 years. Volatile anti-rust oil in six months to a year. The rust prevention cycle of dehydrated anti-rust oil is six months to one year. The anti-rust cycle of fingerprint anti-rust oil is about 1 to 3 months. The rust prevention cycle is not only related to the rust prevention oil, the storage environment of the workpiece is different, and the packaging process is different. The rust cycle will also be different. Depending on the internal composition of the anti-rust oil, some synthetic corrosion inhibitors themselves are easy to decompose and oxidize, and the general shelf life of such anti-rust oil is about 1 year. If only traditional petrochemical corrosion inhibitors are used, there is no problem for more than 3 years as long as the seal is intact and there is no moisture and other pollution. Of course, the anti-rust oil solvent of the solvent will evaporate, and it is necessary to pay attention to sealing, otherwise the shelf life will not be too long. What are the validity period and rust proof period of rust proof oil? For example, if the production date of a barrel of anti-rust oil is indicated in January this year, and the validity period is 1 year, when will the barrel of anti-rust oil expire? January next year, or from the beginning of the opening of the cover, that is, within 1 year after the opening of the cover is considered to be within the validity period? The validity period is calculated from the production date, in this case, the expiration date of this anti-rust oil in January next year is expired. The rust-proof period refers to the rust-proof period of the metal under certain conditions, calculated from the time when the rust-proof oil is used. Expiration date is open from the date of production, as calculated. In other words, in January next year, this anti-rust oil can not be used. However, the anti-rust oil is not affected by the external environment, so even if it is not until January next year after opening the lid, it is considered to be still in effect. Most of the ordinary lubricating oil is mainly adhered to the workpiece by the oil film, so that the workpiece is isolated from the air and water, so as to prevent rust, but this anti-rust effect is very general. For example, the workpiece is processed by emulsion, and there is water on it, you can use dehydrated anti-rust oil, and the surface of the workpiece is required to be clean, which can use volatile anti-rust oil, etc., which is not achievable by general lubricating oil. The anti-rust time of anti-rust oil is also affected by many external factors, including the environment, storage method, oiling method, packaging process, ambient temperature, humidity, air quality, dust, air flow, etc., will affect the anti-rust time of anti-rust oil, and will also have different effects because of the different material of the metal. Rust prevention time: Lubricated anti-rust oil, the longest anti-rust cycle can reach 3 years, The rust prevention cycle of hard film anti-rust oil is about 2 years. Volatile anti-rust oil in half a year to 1 year. For example, if the general metal requires that the surface cannot be too oily and the rust prevention time is longer, you can choose volatile anti-rust oil, which has good volatile performance and is easy to clean after the rust prevention time is about 1-1.5 years. The rust prevention cycle of dehydrated anti-rust oil is six months to one year. The anti-rust cycle of fingerprint anti-rust oil is about 1 to 3 months. For example, electronic accessories products have higher requirements for the surface of the workpiece, the surface oil film can not be thick, close to dry, this time you need to choose a fast drying type of anti-rust oil, of course, the anti-rust time of this time is about 3-6 months; Salt spray and other anti-rust oil, such as electroplating products rust sealing treatment can be volatile salt spray and other anti-rust oil, good volatility with the core machine surface effect is good, salt spray anti-rust cycle can be as long as 1-2 years; Water-based processing liquid processed workpieces, such as: cutting parts, stretching parts, phosphating parts, blackening parts, electroplating washing parts can choose water-based anti-rust oil, dehydration effect is good, dehydration fast anti-rust time in 6 months to 2 years; If the oil film on the surface of the workpiece is required to be oily and the oil film is thick, it is also recommended to use oil-based anti-rust oil at this time, which has a strong anti-salt spray ability and a long anti-rust time.
