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How to protect stainless steel water tank in order to be more durable

Release date: April 9, 2020 Number of visits: five hundred and five

Due to the chloride ion (Cl -) in industrial and domestic water, metal hot water vessels are always in the corrosive environment containing Cl - water below 80 ℃ all the year round, which is easy to occur local corrosion and limit its service life. Compared with uniform corrosion (chemical corrosion), local corrosion (electrochemical corrosion) is much faster and more dangerous, which often leads to leakage failure. In the water medium containing Cl -, the weak link of corrosion of stainless steel water tank is the welding zone. Due to the high temperature heating in this area, the microstructure and properties are deteriorated, and the corrosion resistance is also reduced.

Stainless steel water tank Generally, the material is Cr stainless steel, and the corrosion and leakage of the welding parts of the water tank are common due to the lack of nickel in the material. The traditional repair welding method is more difficult, and the influence of thermal stress may cause greater damage; brushing epoxy corrosion-resistant materials may lead to cracking, peeling and other phenomena due to the influence of surface adhesion and expansion coefficient. In 2013, polymer composites were the most effective methods, and the application of meijiahua series was more mature. According to different equipment, different operation status, different corrosion leakage forms, the corresponding technical products can quickly, simply and effectively protect the equipment. Especially due to the comprehensive performance of polymer composite materials such as chemical corrosion resistance and adhesion performance, the adverse effects of traditional repair welding repair and traditional corrosion-resistant material protection are avoided, and the repaired equipment life is prolonged To reduce the cost of equipment maintenance and even to improve the competitiveness of enterprises.

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Operation steps:

Surface treatment: firstly, use angle grinder to clean the scale on the surface of water leakage part, and then clean the surface with electric mill at right angle weld position, carefully clean the surface with sandpaper to expose the primary metal color, and then thoroughly clean the surface with anhydrous ethanol.

Blending material: mix 1321 material in the proportion of 3:1 and stir until there is no color difference.

Coating material: brush the adjusted 1321 material to protect the weld area, and then use 1321 material for large-scale anti-corrosion protection.

Curing time: 24 hours / 24 ℃ (material temperature). When the temperature of the material is increased by 11 ℃, the curing time will be shortened by half, but the rising temperature shall not exceed the bearing temperature of the material.


Stainless steel water tank protection tips stainless steel, compared with other water tanks, it has the advantages of light weight, corrosion resistance, high temperature resistance, high strength, in order to be more durable use, it is necessary to protect your own water tank, but how to protect it?

The steps are as follows: first, close the water inlet valve, then open the sewage discharge valve, drain the remaining water in the water tank, and then enter the stainless steel water tank through the ladder. Clean the dirty places in the water tank with a clean mop or cloth. If the dirt is serious, you can also buy some kind of dirt removal to wash it, and then store water to give all the cleaning just now After flushing, repeat for several times, then close the drain, open the gate, and discharge water again. In this way, the stainless steel water tank is well protected.

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eighteen billion six hundred and thirty-seven million three hundred and two thousand and ninety-nine