Tinplate is actually a composite material, its core part is low-carbon steel plate, and the surface is plated with a thin layer of tin. Therefore, tinplate is mainly composed of two materials: steel plate (iron) and tin.
For the question of "Is tinplate packaging can flammable?", we can get the answer from the properties of its main materials. Generally speaking, metal materials are not flammable because they do not contain flammable components such as hydrocarbons
International price distribution of electrolytic tinplate:
1. The price range per ton in the Chinese market is between 6,000 yuan and 8,000 yuan
2. The price per ton in the European market is usually between 900 euros and 1,200 euros
3. The price per ton in the North American market is about 1,000 US dollars to 1,300 US dollars
4. Other regions are about 800 US dollars to 1,000 US dollars per ton
The main advantages of tin can packaging:
Excellent protective performance
Excellent sealing
Good plasticity and diversity
Environmental protection and recyclability
Anti-tampering and authenticity functions
The main disadvantages of tin can packaging:
Heavy weight
High production cost
Easy to rust
Difficult processing
Poor transparency
The main component of tinplate cans is steel, on which a thin layer of tin is coated to prevent rust and corrosion. Aluminum cans are made entirely of aluminum, a lightweight metal with a density of about one-third that of steel.
The black marks in tinplate cans are usually caused by corrosion of the can. When the metal in the can reacts with the acid in the food or environment, corrosion occurs, resulting in black marks in the can.
The tinplate layer on the surface of tinplate sheet has good chemical stability and usually does not react chemically with food or beverages. This is because tin has extremely low reactivity at room temperature and is not easy to react with acids and alkalis, so it is widely used in food packaging.
Tinplate containers, in simple terms, are packaging or storage containers of various shapes made of tinplate. This type of container is made of tinplate as the main material and is made through a series of stamping, cutting, welding and forming processes.
Reasons why tinplate sheet can be used as food packaging material:
1. Anti-corrosion performance
2. Mechanical strength and durability
3. Good sealing
4. Food safety
5. Good processability and decorativeness
6. Recyclable and environmentally friendly characteristics
Compared with tinplate sheet, Wuxi steel has higher surface hardness and is suitable for occasions requiring high hardness and wear resistance. Due to the chromium layer on the surface of tin-free steel, the weldability is poor, so it usually cannot be used in the manufacture of packaging containers that require sealing welding.
