Brass rod is a solid metal composite material with a purplish blue appearance. The physical properties of brass rod materials are very active. Therefore, in the stage of production, processing, application and storage, it is inevitable to contact WITH O2 and dust in the air, and it is easy to cause oxidation and fading of the surface of brass rod. More serious corrosion will harm the appearance design and electrical conductivity of brass bar products. According to the different composition of aluminum alloy profile, chemical element symbol Cu can be divided into pure brass bar, yellow brass bar, white brass bar, green brass bar.
With zinc as an important element plus brass bar aluminum alloy profile, the appearance is orange, more common in brass bar decoration, architectural engineering hardware, heat exchanger tubes, liquid mercury, driving cylinder, etc. In addition, the aluminum alloy profile of the brass rod with nickel becomes white brass rod. Medical equipment, instrument equipment, digital clock parts, spectacle frames and so on are calcined with white brass rod. Originally refers to brass bar tin aluminum alloy profile, in addition to white brass bar yellow brass bar, are called brass bar tin aluminum alloy profile. Phosphorus brass bar, tin brass bar, beryllium brass bar, chrome brass bar. It is mainly used for tripod, bell, roller bearing, transmission system big gear and other wear reduction and calcination parts.
Brass bar of good quality is in great demand. According to the data analysis of China's total daily output, the sales volume can guarantee 3200 tons. Brass bar physical characteristics optimistic, also become a big disadvantage of brass bar, oxidation fading fast, no good maintenance methods, so that the production and processing costs increase, so should choose the suitable brass bar security system: phosphating treatment. That is to say, according to the oxidation chemical treatment of brass rod, its corrosion depth is significantly lower than before the solution, that is, often said phosphating treatment. So how to deal with the early oxidation fading? This must be analyzed chemically or physically for removal and polishing treatment. The surface gloss of brass rod has been improved long ago. Fix its surface smoothness.
Brass bar cleaning liquid: with the main agent of ecological environment protection machine acid as the core, plus high quality corrosion inhibitor and small rating scale active agent, no harmful heavy metal pollution nitrogen, phosphorus, potassium and other components. It can effectively ensure that the commodity specification is not changed in the cleaning stage, and the oil stain and oxide skin on the surface of brass rod are removed. Can be used for all kinds of precision processing small objects, complex scale products surface smooth processing, can be used for all kinds of brass rod removal. Improve the surface brightness of brass bar products, and can eliminate rust and oil stains, acid value: PH=0.5~2 effective range.
The repaired brass rod after finishing, in order to better be able to better avoid oxidation again, be sure to phosphating. Selection of weak alkaline chrome-free passivating agent, harmless ecological environment protection. Good stability, the drug can be used repeatedly. Stainless steel passivation film high density, strong corrosion resistance, ZTE salt spray test time more than 72 hours. According to more than 3 years will not be oxidized fade. Operation method: brass rod parts with water after oil removal or polishing processing pipeline cleaning, avoid to send other waste to passivation agent, most of the polishing wax for acidic ingredients, so must be clean and tidy, to avoid the acid to the passivator, cause melting stainless steel passivation membrane layer, thus no stainless steel passivation maintenance role. After soaking, rinse with water and dry at a temperature below 100℃.
