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Quality 丨 pure copper, stainless steel sanitary ware hardware will rust parts also need to maintain

by:Appollo     2020-10-22
Why is pure copper, stainless steel rust?






a, rust principle


when pure copper, stainless steel tube surface appear brown rusty spot ( Point) , big surprised: people think 'pure copper, stainless steel is not rusty, rust, there must be a quality problem'. Actually, this is the lack of the understanding of pure copper, stainless steel of a unilateral mistake. Pure copper, stainless steel under certain conditions will be rusty.


pure copper, stainless steel has the ability of resistance to atmospheric oxidation - - - Namely, stainless, also has in the medium containing acid, alkali, salt is the ability of corrosion - - - - - - - - - - - - - The corrosion resistance. But the size of its ability to resist corrosion was with the chemical composition of steel itself, and each state, using conditions and environmental medium type and change. Such as 304 steel tube, in a dry clean the atmosphere, has excellent corrosion resistance, but it will be moved to the coastal areas, in contains a great deal of sea salt fog, will soon be rusty; And 316 steel tube is good. So, not any kind of stainless steel, in any environment corrosion, no rust.






2, rusty reason


stainless steel is formed on the surface of a layer of a very thin and fine and stable solid rich chromium oxide film ( Protective film) To prevent the oxidation of oxygen infiltration, continue, and ability to resist corrosion. Once you have some reason, the film has been continuously destroyed and air or oxygen atoms in the liquid iron atoms will constantly infiltration or metal separation out unceasingly, forming loose iron oxide, metal surface are also constantly rust. The surface membrane damage in the form of many, see more in daily life has the following several kinds:


1. Pure copper, deposited on the surface of the stainless steel contain other metal elements of attachments, or heterogeneous metal particles of dust in the humid air, attachments and stainless steel, the condensed water between the both together as a micro battery, triggers the electrochemical reaction, protective film is damaged, to call the electrochemical corrosion.


2. Pure copper, stainless steel surface adhesion organic juice ( Such as vegetables, noodle soup, sputum, etc. ) , under the condition of water is oxygen, organic acid, organic acid to for a long time and are on the surface of the metal corrosion.


3. Pure copper, stainless steel surface adhesion containing acid, alkali and salt ( Like to decorate the walls of caustic soda and lime water splash) , cause local corrosion.


4. Where there is pollution in the air ( Such as contains a lot of sulfur, oxidation of carbon, nitrogen oxide atmosphere) , encounter condensed water to form sulfuric acid, nitric acid, acetic acid, liquid, chemical corrosion.






3, how the protective rust


the above situation can be caused by the destruction of the pure copper, stainless steel surface protective film cause corrosion. So, for metal surface lasting bright, don't be rust, we suggest that:


1. Decorative stainless steel surfaces must often swabbed clean, remove attachments, eliminate the cause of external factors.


2. The sea area to use 316 stainless steel material, 316 material corrosion resistance to sea water.


3. Some pure copper, stainless steel pipe chemical composition on the market can not meet the corresponding national standards, amounted to less than 304 material requirements. So can also cause rust, which requires users to choose reputable manufacturer product carefully.






4, magnetic stainless steel why will take?


people often think of the magnet adsorption stainless steel material, verify its quality and authenticity, not without magnetic absorption, think is good and true; Magnetic suction, is believed to be fake fake. Actually, this is a very one-sided, not real wrong about it.






5, pure copper, stainless steel hardware maintenance tips:


1. After the shower, wipe dry with a soft towel bibcock and pole, because of the residual bath dew erodes plating.


2. After plating to rust, around the rusty spot, use toothpaste is wiped.


3. Within the toilet, use less as far as possible the acidic cleaner, less matter such as scrubbing with soap.






6, the processing of pure copper, stainless steel rust secret


1. Kerosene, was cleaning: first cloth dips in kerosene wipe again, and then use was to wipe, can remove rust.


2. The vinegar to embroider method: green the rust on the bronze utensils, cloth dip vinegar, add a pinch of salt or cuttlefish bone cleansing, can be removed.


3. Sea salt scaling method: if the corrosion is very serious on the bronze utensils, can put salt into the melted wax, with this solution is wiped, eliminates the rust.


4. Lemon juice cleaning: if she gave birth to rust on the bronze utensils, lemon juice and salt to wipe to remove are available, and if you want to make it more bright, available packages of cigarettes tinfoil or add a few salt to wipe sawdust, the effect is very good.


5. Talcum powder, fine wood derusting method: use 160 grams of fine wood, 60 grams of talcum powder, 240 wheat bran and son together, add in 50 grams of vinegar, mix into a paste, besmear is on rusty bronze, after the wind blow dry, can remove rust.






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