Wuxi Huajin Spray Anti corrosion Technology Service Co., Ltd. is a high-tech manufacturer specializing in anti-corrosion products such as sandblasting, zinc spraying, aluminum spraying, stainless steel sandblasting, zinc spraying, sandblasting, and thermal spraying of pseudo alloys. Undertake surface anti-corrosion and pre-treatment processing services for various large, medium, and small machinery or container equipment. It has the advantages of good sandblasting quality, low price, and fast shipment.

Hot spray aluminum is a process method for preparing coatings and has become one of the new technologies for metal surface protection. In the past, hot spray aluminum technology was mainly applied to the local parts of container production, shipbuilding industry, and important corrosion simulation parts of water conservancy engineering. With the development of China's logistics industry, large tank groups have been established one after another, and hot spray aluminum technology has gradually been applied to the inner wall simulation of large storage tanks for storing special materials.

advantage

The thermal spraying aluminum construction on the inner wall of the storage tank has the following advantages compared to other construction methods:

1. In terms of investment, it can save 55% of the investment compared to products with all stainless steel wall panels; Extend the service life by 1.5 times compared to products with all carbon steel wall panels.

2. Compared with other spraying methods, it poses less harm to human health; Strong binding strength.

Surface treatment before hot spray aluminum:

1. Sandblasting for rust removal.

(1) Before spraying aluminum on the inner surface of the storage tank, the metal surface must be sandblasted with copper ore to remove rust. The rust removal result should meet the requirements of national standard Sa3 and: the steel surface should be free of visible grease, dirt, oxide scale, paint coating and other attachments, and the surface should display a uniform metallic luster. The surface roughness reaches 75 μ m or above.

(2) Compressed air must pass through a high-performance oil-water separator and buffer tank before entering the spray gun, with a pressure not lower than 0.5MPa.

(3) In order to maintain the roughness and cleanliness of the metal surface, copper ore sand must be clean, dry, and have a particle size of 3-5mm.

2. After sandblasting and rust removal, a vacuum cleaner should be used to remove dust from the metal surface.

Metal surfaces that have undergone sandblasting and rust removal must not be touched by hand and should be sprayed as soon as possible. The interval between sunny days should not exceed 12 hours, and rainy or humid weather should not exceed 2 hours. Otherwise, surface treatment should be carried out again. If sandblasting fails to meet the predetermined requirements, it is easy to form the following defects: poor adhesion between the sandblasting layer and the metal layer, and easy detachment; Spray aluminum layer peeling and shell peeling.