How to manufacture high-quality enamel water tank liner

With the continuous improvement of world health standards and requirements, enamel water tanks have brought great opportunities.

Enamel does not contain any harmful elements, is safe, hygienic, and healthy, so it is very popular because it does not contain heavy metals, while ordinary stainless steel or copper lining contains heavy metals. With the continuous improvement of world health standards and requirements, enamel water tanks have brought great opportunities.  
Enamel water tanks made of low-carbon steel plates have advantages over other materials due to their low cost. The enamel manufacturing process is relatively mature, and the qualification rate of enamel water tank products is relatively high. China's enamel manufacturing industry has a history of hundreds of years, and according to enamel technology, its performance is relatively stable. Of course, enamel also has some drawbacks. The manufacturing process of enamel water tanks is very strict, including material selection, molding, surface treatment, drying, and firing. Any small deviation in the process can affect the quality of the final product. And enamel is a brittle material, so as long as the installation is not completed, one must be very careful every time they come into contact with enamel. 
Enamel water tank blank manufacturing: 1. Selection of steel plate materials: The blank of the water heater inner tank is generally made of hot-rolled steel plate, cold-rolled steel plate or low-carbon zero carbon steel plate with a thickness of 1.5~5 millimeters, as well as special enamel steel plate with special composition. Enamel is made of zero carbon steel or special steel, with good coating quality but higher price. 2. Welding of steel plate materials: The steel plate inside the enamel water tank can be automatically welded under argon, nitrogen, or carbon dioxide gas protection. Some welding materials are filled with wire, while others are self melting. The welding quality of steel plates has a significant impact on the quality of enameled products, and the welding impermeability will affect the strength of the welded joints; Excessive welding and penetration can cause defects such as porcelain explosion, porosity, and inclusions. 3. Steel plate welding structure - the structure at the connection between the head and the cylinder. The welding structure between the head and the cylinder mainly considers the following points: suitable for cleaning the connection, such as removing grease, welding oxide skin, and sandblasting dust; Suitable for enamel coating on steel plate surface, firmly bonded, without residual porosity hazards; The joint should be able to withstand more than 100000 compression fatigue tests, and the porcelain layer at the joint should not fall off; For flow coating, the head structure is beneficial for the use of the rolling coating machine.
How to make high-quality enamel water tank liner: 1. Choose specialized steel plates suitable for enamel coating, strictly control the five elements of carbon, silicon, phosphorus, manganese, sulfur in metal materials, and the metallographic structure of metal iron; 2. Design a metal lining structure suitable for enamel coating, without sharp angles, dead corners, etc; 3. Strictly control the surface treatment process of metal iron to ensure complete cleanliness of the metal iron surface, and if conditions permit, increase the surface area and activity of the metal; 4. It is necessary to use enamel glaze with excellent heat and water resistance and its grinding additive formula; 5. Strictly control the rheological properties of enamel glaze slurry and the coating process of enamel water tank liner to ensure that enamel glaze slurry is evenly coated on all metal material surfaces, without being too thick or too thin.