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What is tinplate

Published on:

2022-07-05 09:39

Tinplate, also known as tin-plated iron, is a common name for electroplated tin steel sheet. Tin mainly plays a role in preventing corrosion and rust. It combines the strength and formability of steel with the corrosion resistance, solderability and beautiful appearance of tin into one material, which has the characteristics of corrosion resistance, non-toxicity, high strength and good ductility. Tinplate originated in Bohemia (in present-day Czech and Slovakia). The place has been rich in metal since ancient times, with advanced technology, and knows how to use water power for machine manufacturing, and has been producing tinplate since the 14th century. After the First World War, the armies of various countries made a large number of iron containers (cans) which have been extended to this day. Tinplate was called Tin Plate in the early days, and its official name should be tin-plated steel sheet. Because China's first batch of foreign iron was imported from Macau in the middle of the Qing Dynasty, Macau was transliterated as "horse mouth" at that time, so the Chinese generally call it "tinplate".

Tinplate is an iron sheet plated with a layer of tin on the surface, which is not easy to rust, also known as tin-plated iron. This kind of plated steel plate has been called "tinplate" in China for a long time. Some people think that because the tinplate used for making cans at that time was imported from Macau (the English name Macau can be read as horse mouth), it is called "tinplate". There are also other sayings. For example, in the past, China used this tin-plated sheet to make the lamp cap of the kerosene lamp, which was shaped like a horse mouth, so it was called "tinplate". The name "tinplate" is not precise, therefore, the name was changed to tinplate at the China Tinplate Conference in 1973, and the name "tinplate" is no longer used in official documents.

Due to its good sealing, preservation, light-proof, firmness and unique metal decoration charm, tinplate packaging determines that it has a wide coverage in the packaging container industry, and is a commonly used packaging variety in the world. With the continuous enrichment of various CC materials, DR materials and chrome-plated iron for tinplate, the development of packaging products and technologies has been promoted, and tinplate packaging is full of innovations. Because of its strong oxidation resistance, various styles and exquisite printing, tinplate packaging containers are very popular among customers and are widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument packaging, industrial product packaging, etc.

Many advantages of tinplate packaging containers, such as high strength, good formability, and strong product compatibility, have established a good "word of mouth" for them in the international market. Therefore, all countries generally attach importance to this kind of packaging container, which is the largest metal packaging sheet in the world. According to the different requirements of the packaging industry, the thickness of the tinplate material, the amount of tin plating, and the mechanical properties have different needs. Since its inception, tinplate has been developing in the direction of thinning. One is to use less tin, or even not to use tin, and the other is to reduce the thickness of the tinplate substrate. Its purpose is to adapt to changes in canned products and reduce the cost of canning.

With the continuous improvement and improvement of tinplate printing technology and processing technology, the application of tinplate packaging is becoming more and more extensive. At present, the production capacity of domestic tinplate has been continuously improved, and the import of tinplate will gradually decrease. Except for some high-end products, a small amount of import is still required, and it has basically achieved self-sufficiency. The demand of my country's packaging industry has put forward higher requirements for metal packaging in terms of quantity and quality. In 2010, my country's metal packaging container sales revenue exceeded 50 billion yuan, which also brought metal packaging into a new growth opportunity period. The continuous and rapid development of the food industry has brought a broad market development space for the tinplate packaging container industry.


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