Water tanker sprinkler anti-corrosion big secret

Water tanker anti-corrosion big secret

Tank cars are generally made of high-quality carbon steel plates, and the plate thickness is generally between 4-6mm. Everyone knows that carbon steel plates are prone to rust when exposed to water, especially seawater is more corrosive. And if you do not use rust more often, you will spend more than 100,000 to buy a car in two or three years and basically wear it. The tank body will also be scrapped. In order to improve corrosion resistance of steel can body and life, corrosion resistant materials may be sprayed on the inner surface of the tank liner corrosion or sticking. The commonly used processing methods are:
(1) Zinc coating: It is used to transport gasoline, benzene, mixed xylene, cement, water, excrement and other materials.

(2) Painting: For water, cement, excrement and other materials (3) Tin coating: used for shipping light oil, heavy oil, lubricating oil and other petroleum products.
(4) Lead: Pure lead is a good corrosion resistant material. Lead-coated tanks are suitable for shipping dilute sulfuric acid, chlorinated benzylic materials, and are not suitable for shipping hydrochloric acid and alkalis. Lead and its alloys are toxic and should not be exposed to food items. They are also harmful to humans and should be protected when used.
(5) Aluminum coating: It is used to transport chemical products such as methanol, ethanol, aviation fuel, concentrated nitric acid , glacial acetic acid, benzene, aldehydes, organic solutions, and food items.
(6) Plastic lining: used for shipping water, liquid fuels, and some corrosive items. Different plastic varieties, its applicability is also different.
(7) Rubber lining: The corrosion resistance of rubber varies depending on the type. Vulcanized natural rubber can resist corrosion of most inorganic acids, organic acids, alkalis, salts, alcohols, etc., but strong oxidants ( nitric acid , concentrated sulfuric acid , chromic acid , hydrogen peroxide, etc.) and certain solvents (benzene, carbon disulfide , carbon tetrafluoride, etc.) have poor corrosion resistance. Nitrile rubber in synthetic rubber has good oil resistance; neoprene rubber is better in acid and alkali resistance; polyether rubber is more stable in water, oil, ammonia and alkali.
(8) In order to improve the corrosion resistance of the aluminum can body, may be coated with magnesium, manganese and other elements on its inner wall.
Tank trucks as a special industry, its anti-corrosion treatment also has its own particularities. Now Xiao Bian will take you to experience what the elites of the tanker industry do.

According to the survey, CNHTC Jinan Special Vehicles Co., Ltd. is particularly advanced in anti-corrosion technology. It adopts solvent-free coatings and is suitable for long-term corrosion protection of steel structures or concrete under various harsh corrosive environments, such as underground, water, and sewage pools. , contact with other chemical media such as steel. Replaceable, glass fiber reinforced rubber lining and other processing processes are mainly divided into:

(1)   Surface treatment stage: Clean up debris such as weld slag falling in the body. Talk about cleaning surface dirt. Completely clean compressed air and dust cloth and apply for inspection.

(2)   Commissioning reagent stage: Reasonable deployment according to requirements.

(3)   At the stage of coating, the gap between the welding head and the welding seam of the anti-wave plate and the tube body shall be coated with a brush, and the angle between the welding seams of the anti-wave plate and the barrel body may not be applied in a roller coating application.

(4)   Roller coating stage: Rolling with a roller brush from front to back over a large area, with a coating thickness of 200 μm

(5)   Drying stage: Reasonable drying method according to demand.

Hubei tank car manufacturers generally use paint.
(1) The steel plate of the sprinkler tank should be pre-treated and then painted with a shop primer.
(2 ) Apply paint on the inner surface of the pontoon and leave behind a coat of paint.
(3 ) The application of anti-corrosion paint on the side wall letter of the floating plate should meet the requirements in design.
(4 ) Before welding the tank car body, paint under the floor of the tank shall be painted (solder edge reserved or painted) to meet the design requirements.
(5 ) After the test pressure is over, paint the anti-corrosion paint on other parts to meet the design requirements!

The use of the tank should pay strict attention to its performance. Shipment of the corresponding items; care should be taken in the maintenance of the spray layer or lining to prevent damage, otherwise it should be repaired.

 

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