In practical applications, often encounter use oil can not reach the expected rust rust protection, and even accelerate corrosion of metal. The reason from the following several aspects to inspect.
 
1) antirust oil varieties
 
Rust grease variety is more, the characteristics of all kinds of oil is different also. Some have good replacement sex, some resistance to hot and humid the gender is good, some resistance, salt fog the gender is good, some resistance to high temperature and atmosphere resistance is good and so on, all have special. Different kinds of the oil, use also is different between short-term rust and lubrication process rust and long-term storage rust. Oil additives used to adapt to different metal is different, have of black metal has a significant effect, have of non-ferrous metal and many kinds of metal have adaptability, etc. Therefore, not any kind of rust oil can adapt to the different conditions, must according to the specific circumstances, through the test of practice, select the appropriate antirust oils.
 
The stand or fall of rust resistance, but also with the oil quality about rust, should build acceptance system to rust oil into the factory acceptance, prevent unqualified products into the factory. In use process, prevent rust oil film rapture or loss and influence the antirust properties.
 
2) rust the implementation of the process
 
In the production of rust materials use effect and use technology and packing materials and so on many kinds of factors, and rust process in the quality of rust in a very important position, should be combined with the actual situation of the work unit, and make the antirust process, the specialist is responsible, which can prevent because of craft and cause corrosion problems. In use process, often find the same experience accept qualified antirust grease will come to different rust resistance. This situation should from the rust process check, if slightly negligence, can cause accidents. Rust technique can check from the following:
 
Cleaning: because cleaning not clean, the metal surface water, with the hands sweat or salts, etc, and the use of the temporary and the lack of enough replacement sex, there is the hidden trouble of the corrosion. Some use solvent gasoline as cleaning material, in the solvent in gasoline is not to add the replacement of temporary, cleaned again just when tall wet climate, in the metal surface can produce condensation phenomenon, even in besmear before oily-type rust has not, if not processed directly with oil, will lead to product rust. After cleaning in no immediate rust, also can make the product is in not besmear before oil has rust.
 
Before oil seal check: metal parts should be done before check in oil seal, must be clean and dry, can not have the rust. If already corrosion must derusting, or corrosion will continue to exist and even development. According to the antirust process after derusting oil seal, ensure the quality of oil seal.
 
Heating: some rust grease a sticky, and when the room temperature immersion besmear or brush besmear, need to use heat melt. If not specified temperature heating or long-term according to in high temperature operation, make some additives decomposed into harmful mordants, this oily-type rust not only lost their sex, instead become corrosion promoting agents. So when heated, must according to the regulations, control temperature, can't long-term high or overtemperature, need not when stop heating, in order to avoid rust grease metamorphism, which can ensure the rust resistance.
 
Coating methods: in coating antirust oil, grease must thin and even. If the oil film is too thick or coating not divide evenly, causes the metal surface oil film thin place anti-rust property is very good and in place of thick oil produced uneven oxygen strong bad battery and cause corrosion. In hkbu besmear antirust grease, because there are a lot of oil has not drain oil that is for packaging, make oil more local produce corrosion; If found a trace of corrosion, mainly in the painted with uneven when or leak caused by brush; In the spraying can also cause the oil film not evenly spray or leak. Therefore, in coating antirust grease, must make oil film thin and even, can't leak coated to prevent corrosion. Heating oil seal metal parts must be cold to room temperature before packing, or also easy to produce the corrosion.
 
3) antirust packing materials
 
If packing material quality is bad, choose wrong or use undeserved, also can make the antirust failure. Packing materials do not comply with the quality requirements, sealing is poor, constitute no seal the purpose of the seal. For example the gas phase of the selectivity of metal corrosion inhibitors is very strong, use gas printing paper, must according to the metal to choose, or you will make metal corrosion; In addition, the use of rust paper, no rough surface and metal surface contact, and therefore can not have the expected effect; Some plastic containers can volatilize the corrosive gas, must be careful; Packing cases chooses wood species, wet and dry degree as well as which paint, metal parts for all have certain effect, may even have a very serious effect. Therefore, in the use of packaging materials, must be combined with concrete circumstance, choose appropriate packaging materials, packaging materials selection due to improper use or cause corrosion products.
 
4) storage environment
 
The stand or fall of storage conditions, and metal corrosion speed have close relationship. Using the same kind of rust grease, the same oil seal anti-rust process, due to the different storage conditions, the rust protection. Good storage conditions, and rust phase are long, and rust the effect of it. Conversely, antirust period is short, rust resistance also poor.




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