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Temperature is one of the important factors affecting metal migration. The tin in tinplate cans is relatively stable at room temperature, but when the temperature is above 100°C, the activity of tin may increase, especially under acidic conditions, heating may cause higher tin migration.

Tinplate is the most common material in the current production of candy cans. Tinplate is essentially a tin-plated thin steel plate with good oxidation resistance and corrosion resistance. Because the surface of tinplate is coated with a layer of tin, it can effectively isolate air and moisture to prevent candy from getting damp and deteriorating.

In order to ensure the tin plating quality of tinplate cans, the tin plating time is generally between 10 and 30 seconds. Short-term electroplating can obtain a uniform coating, while long-term electroplating may cause the coating to be too thick and affect the adhesion of the tin layer.

Food packaging is one of the most common application areas of tinplate cans, especially for foods that need to be stored for a long time and maintain quality and flavor. Common food products include: ·Canned food ·Candy and snacks ·Tea and coffee ·Infant food and milk powder

Aerosol cans are high-pressure, sealed containers filled with compressed or liquefied gas. Because of the high internal pressure, once the can is damaged or encounters extreme temperatures, it is easy to cause an explosion hazard. The warning sign is intended to remind consumers that incorrect use of aerosol cans may cause serious physical and chemical hazards.

Products such as tea and coffee have high requirements for the storage environment and need to be moisture-proof, anti-oxidation and light-proof. Tin can packaging has become an ideal choice for products such as tea and coffee due to its good sealing and light-shielding properties.

The tin-plated layer on the surface of tinplate plate can not only resist the erosion of air and moisture, but also prevent the metal from directly contacting food. Especially in acidic foods (such as canned fruit and canned tomatoes), the protective performance of tinplate plate is particularly important.

The amount of tin used in a standard tinplate can depends on its volume and the thickness of the coating. Typically, about 1 to 2 grams of tin are required per square meter of tinplate, which means that an ordinary food can does not require much tin, but its role is irreplaceable.

Tinplate sheet is a metal sheet with a layer of tin plated on low-carbon steel. In the manufacture of aerosol can, tinplate sheet has become an important material choice due to its good corrosion resistance, physical strength and machinability.