Coil powder coating

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Anti-corrosion study for chromate-free primer of coil coating

1 Introduction A chromate-free pigment has a good anti-corrosion performance by the functions which passive a surface of a substrate due to its high oxidizability, forms an adamant deposited pellicle comes from reduction products of a chromate, and stabilizes the protective pellicle by a pH buffering. Good anti-corrosion performances like a chromate primer can be expected by the replacement to some pigments which have the similar anti-corrosion function to a chromate pigment. Furthermore, the organic binder’S design of a chromate-freeRead More …

Coil Coatings benefits

Coil Coatings Benefits Organic coil coating products are widely used in all aspects, because of its fundamental benefits: ① economy: increase capacity and production, reduce production costs, energy consumption, product inventory and financial costs ② environmental protection: for environmental regulations, from product design to the regeneration of the entire cycle, the product can fit environmental requirements. ③ Art technology: the rich colors, different batches of consistent quality, you can get a variety of surface effects, process flexibility is good. FrequentlyRead More …

The coil coating line

The continuous process of applying up to three separate coating layers onto one or both sides of a metal strip substrate takes place on a coil coating line. These lines vary greatly in size, with widths from 18 inches to over 60 inches and speeds from 100 feet per minute to 700 feet per minute; however, all coil-coating lines share the same basic process steps. A typical organic coil coating line consists of decoilers, entry strip accumulator, cleaning, chemical pretreatment,Read More …

Steel coil coating process

These are the basic steps of the steel coil coating process UNCOILER After visual inspection,moves the coil to the uncoiler whereby the steel is placed on a pay-off arbor for unwinding. JOINING The beginning of the next coil mechanically join to the end of the previous coil,this allows for the continuous feed of the coil coating line. This makes each edge of the joint area become the “tongue” or “tail” of the finished coated steel coil. ENTRY TOWER The entryRead More …

Coil coating is a continuous industrial process

Coil coating is a continuous industrial process in which multiple layers of organic film are applied and cured on a moving metal strip. The paints used are liquid (solvent-based) and are generally composed of polyesters with acid- or hydroxy- endgroups able to crosslink with melamines or isocyanates to form a complete network with film properties that are tailored to the final application of the coated metal panel (building products, beverage cans, domestic appliances, etc.). The total film thickness is aroundRead More …

Technology progress of coil powder coating paint

Pre-coated coil can be used in building internal and external wall panels, and there are broad prospects in the appliance, automotive, metal furniture and other industries. From the 1980s, China began to introduce and absorb foreign technology, especially in recent years due to the building materials market and the automotive electronics market costs and environmental requirements,a large number of domestic coil powder coating production line launched. The powder coating is known for its high efficiency and environmental protection,China has becomeRead More …