??At present, the coatings used for the inner walls of American standard stainless steel beer kegs are all solvent-free anticorrosive coatings. After more than 10 years of practical use by Yantai Dingke Machinery Co., Ltd., the coating has no effect on beer quality, good antiseptic effect, excellent sanitary and physical and chemical functions, strong adhesion, and long service life. The coating is lubricious and easy to clean, similar to enamel. Cured at room temperature, it can be used after one week of coating, or it can be cured by heating. The coating is excellent in water resistance, alcohol resistance, alkali resistance, weak acid resistance, oxidation resistance media and temperature difference replacement.
The stability and durability of the American Standard stainless steel beer barrel project are major issues related to national economy and people's livelihood. American standard stainless steel beer keg containers are mainly composed of metal and non-metal materials. The metal is mainly carbon steel. Non-metal materials include cement mortar, concrete, ceramics, coatings, glass fiber reinforced plastic, and acid-resistant brick anticorrosive layers.
Traditional porcelain altars and porcelain urns have small capacity and low production capacity. After the use of cement tanks, the production capacity is increased, but the durability is poor. Generally, it will be abolished in 2 to 3 years. About 5 years; American standard stainless steel beer kegs have excellent functions and corrosion resistance, but they are expensive and their promotion is limited.
American standard stainless steel beer kegs manufactured by spraying epoxy paint on the inner wall of food container on carbon steel or cement surface have good durability, low cost, meet food hygiene requirements, and have no adverse effects on food. This is one of the occupations to expand production capacity and reduce investment costs. shortcut.
Drinking food, especially water, beverages, condiments, wines, etc. is a better solvent, and its container is more corrosive. If the inner wall is not subjected to anti-corrosion treatment, it will cause corrosion damage and pollute drinking. Water or drink. This not only causes a mess, but more serious, if people drink contaminated water or drinking products, they will endanger their physical and mental health.
Therefore, the inner wall of the American standard stainless steel beer keg container is often coated with a layer of acid-resistant, oil-resistant, and alkali-resistant anticorrosive coating to ensure that the beer meets drinking hygiene standards.
At present, most of the inner wall coatings of American standard stainless steel beer keg containers are epoxy resin coatings, and they use primer and topcoat supporting systems. Most of these coatings use solvents. With the increasingly strict environmental protection regulations, the use of solvent-based coatings is gradually restricted.
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