1. Varieties of anti-rust grease

There are many kinds of anti-rust oils, and the characteristics of various oils are different. Some have good displacement, some are better resistance to moisture and heat, some are better resistance to salt spray, some are better resistance to high temperature and atmosphere, and so on. Different types of oil, the use is different, there are short-term rust prevention between processes, lubrication rust prevention and long-term storage rust prevention. The additives used in oil products are also different in different metals, some have significant effects on ferrous metals, and some have adaptability to non-ferrous metals and a variety of metals. Therefore, not any kind of anti-rust oil can adapt to a variety of different conditions, we must choose the appropriate anti-rust oil according to the specific situation and through the test of practice.

The quality of the anti-rust effect is also related to the quality of the anti-rust grease, and an acceptance system should be established to accept the anti-rust grease into the factory to prevent unqualified products from entering the factory. In the process of use, the oil film of the anti-rust grease is prevented from breaking or losing and affecting its anti-rust performance.

2. Implementation of anti-rust technology

The effect of anti-rust materials in production and use is related to many factors such as the use of technology and packaging materials, and the anti-rust process occupies a very important position in the quality of anti-rust, should be combined with the actual situation of the unit, the development of anti-rust process, there is a special person responsible, so as to avoid rust caused by process problems. In the process of use, it is often found that the same batch of anti-rust grease with qualified experience will get different anti-rust effects. This situation should be checked by the anti-rust process, if a little neglect, it will cause an accident. Rust prevention processes can be checked from the following points:

● Cleaning: Because the cleaning is not clean, there is moisture, hand sweat or salt on the metal surface, and the anti-rust oil used lacks sufficient displacement, there is a hidden danger of rust. Some use solvent gasoline for cleaning materials, in the solvent gasoline does not add a displacement of anti-rust oil, cleaning and high humidity climate, on the metal surface will produce condensation phenomenon, even before the corrosion of anti-rust oil, if not treated directly coated oil, it will lead to product rust. There is also a failure to prevent rust in time after cleaning, which will also cause the product to rust before being oiled.

● Inspection before oil seal: Metal parts should be inspected before oil seal, must be clean and dry, no rust. If the rust has been removed, the rust must be removed, otherwise the rust will continue to exist, and even develop. After rust removal, the oil seal is carried out according to the rust prevention process to ensure the quality of the oil seal.

● Heating: Some anti-rust grease is thick, can not be dipped or brushed at room temperature, need to be heated and melted before use. If it is not heated at the specified temperature or operated at high temperature for a long time, some additives decompose into harmful corrosives, this anti-rust oil not only loses its anti-rust property, but instead becomes a corrosion accelerator. Therefore, when heating, the temperature must be controlled according to the regulations, can not be long-term high temperature or overtemperature, stop heating when not in use, so as to avoid deterioration of anti-rust grease, so as to ensure the anti-rust effect.

● Coating method: When coating anti-rust grease, the grease must be thin and uniform. If the oil film is too thick or the coating is uneven, it will cause corrosion caused by the corrosion of the metal surface where the oil film is thin and the corrosion caused by the uneven oxygen concentration battery in the place where the oil layer is thick. When the anti-rust grease is dipped, because the oil is not drained and there is still a lot of oil, it is packaged, so that the place where there is much oil will be corroded; If a trace of rust is found, it is mainly caused by uneven brushing or missing brushing; It will also cause uneven oil film or leakage when spraying. Therefore, when coating anti-rust grease, the oil film must be thin and uniform, and can not be leaked to prevent corrosion. The metal parts of the heating oil seal must be cold to room temperature before packaging, otherwise it is easy to corrosion.

3, anti-rust packaging materials

If the quality of the packaging material is not good, the wrong choice or improper use will also make the rust prevention ineffective. Packaging materials do not meet the quality requirements, poor sealing, can not achieve the purpose of sealing. For example, the gas phase corrosion inhibitor is very selective to metal, and when using gas phase paper, it must be selected according to the metal, otherwise it will promote metal corrosion; In addition, when using anti-rust paper, the rough surface is not in contact with the metal surface, so the expected effect cannot be achieved; Some plastic containers can also volatilize corrosive gases, must be used with caution; The variety of wood used in the packaging of the wooden box, the degree of dry and wet, and the paint used have a certain impact on the metal parts, and even have a very serious impact. Therefore, when using packaging materials, it is necessary to select the appropriate packaging materials according to the specific circumstances to prevent corrosion of products caused by improper selection or use of packaging materials.

4. Storage environment

The quality of storage conditions is closely related to the corrosion rate of metals. Using the same kind of anti-rust grease and the same anti-rust process of oil seal, the anti-rust effect is very different due to different storage conditions. The storage conditions are good, the rust prevention period is long, and the rust prevention effect is good. On the contrary, the anti-rust period is short, and the anti-rust effect is poor.