Tinplate Steel Coils For Food Cans
Tinplate steel is used to create metal packaging products such as food cans. Its characteristics include being non-toxic, tasteless and odorless.
It is made by coating a thin steel strip with tin using the electrolytic process. This gives it a shiny metallic luster. Before tin plating, the steel undergoes cold reduction in continuous or reversible mills with surface lubricants and cooling agents.
Good Corrosion Resistance
Tinplate steel is a metal that has the ability to resist corrosion. It is also able to withstand temperature changes. This Steel band saw blade makes it a good choice for food cans and other containers that need to be handled by the public. It can withstand cold and heat and is a great choice for containers that need to be stored in a refrigerator or freezer.
Tin plate steel is available in both sheet and coil form. It can be used to make food and beverage packaging, aerosol bottles, tanks, and other products. Coils are often used for applications where a continuous, sizeable piece is needed. Coils are made from a sheet of tinplate that is bent into a shape and then rolled.
The tinplate coil is usually available with various tin coating thicknesses to suit different applications. The tin coating is typically applied to the tinplate using an electrolyte leaning process that removes impurities from the tin plate surface. The clean tinplate then undergoes temper rolling, which is a process in which the material is heated and then rolled between two rollers.
High Impact Resistance
Unlike glass or plastic containers, which are susceptible to scratches and other damage that can compromise their quality, metal cans have high impact resistance. This is due to their design, which uses the natural properties of tin, making them tough and durable. They can also withstand heavy pressure, which is especially important for packaging foods like soups and stews.
The tinplate steel that is used to make food cans is a light-gauge, cold-reduced, low-carbon steel sheet coated on both sides with commercially pure tin. This tin coating provides a beautiful metallic luster and is easy to solder and weld (Essuman, 2019). The coating is nontoxic and tasteless, and it can be easily painted with food-safe paint, allowing manufacturers to add logos or other branding to their products.
The tinplate steel is cold-rolled, annealed, and then subjected to a second cold rolling process to create Soft Double Reduced (DR) temper. This process results in tinplate with higher yield strength and allows can-makers to use thinner gauge steel. It also produces tinplate with better mechanical properties, such as edge camber, which is the degree of angle formed at the edge of a flat tin plate.
High Barrier Properties
Tinplate is a low-carbon steel sheet or strip coated with commercial pure tin on both sides. The tin acts as an anti-corrosive layer, providing protection from rust and corrosion. It is also non-toxic, tasteless and odorless, making it suitable for food packaging. It is also easy to paint and decorate, giving manufacturers the ability to brand their products with logos or trademarks.
The tinplate product used for making food cans is really a complex sandwich of materials, designed to meet the needs of the tinplate producer, the can manufacturer, the filler, and the consumer. It starts out as a piece of deep-drawing steel, with one side coated thicker than the other.
The black plate is degreased and lubricated to prepare it for cold rolling in either continuous or reversible mills, where the thickness of the plate is reduced. It is then annealed, which can be done in either continuous or bell-type furnaces. It is tempered according to the required end use and the desired mechanical properties of the finished product. It is graded into first and second grade depending on whether there is coil shape damage or other quality defects, like perforations, material defect, etc.
Rust-Resistant
Tin plate is not inert totally to environmental corrosion and Tinplate Sheet Manufacturer contact with food materials (especially acidic ones such as fruit juices). Therefore, it requires passivation treatment during manufacture. The process involves applying a solution of resin or resin-drying oil complex in volatile solvents onto tinplate sheet before it is used for can production. This treatment prevents the oxidation of tin, which can lead to discoloration and corrosion in the container.
The tinplate steel substrate used in the manufacturing process should meet certain criteria, such as its structural stability, tensile strength, and elongation rate. It should also have a coating that can withstand high temperatures above its recrystallization temperature. This ensures that the steel can withstand rigorous forming and processing.
The tinplate steel coils that are used in the can manufacturing process may be either silk-screened or printed. The difference between the two is that silk-screened coils have a more rough surface and are usually cheaper than printed ones. The latter are more precise, but can be a little harder to work with due to the many layers of paint involved.
High Insulation Properties
Tinplate coil has excellent insulation properties that make it ideal for making food cans. It is also highly durable and resistant to corrosion, even in harsh environments. In addition, it is non-toxic and odorless, which makes it suitable for use in foodstuffs. Furthermore, it is easy to paint, which allows it to be branded with logos and other designs.
The process for producing tinplate coil involves several steps. First, the steel substrate is cold reduced and annealed. Then, it is electrolytically coated with tin. After the coating has been applied, it is cold rolled again.
To ensure the quality of tinplate coil, manufacturers must perform mechanical tests on it. These tests include tensile and Rockwell hardness testing. The tensile test measures how far the material can stretch before it breaks. The elongation rate of a tinplate coil is an important factor to consider when choosing a product.