Views: 0 Author: Site Editor Publish Time: 2021-10-28 Origin: Site
According to information, 70% of the world's zinc currently comes from mined zinc ore, while 30% originates from recycled or secondary zinc. With advances in zinc production and zinc recovery technology, 80% of recoverable zinc is now recovered and zinc can be recovered at all stages of production and use. At the same time, with the development of industrial technology, zinc is being produced in a wider variety of products. The specific product that we would like to introduce is related to zinc and it is GI. In this article we will give a brief introduction and analysis of GI.
The development history of of GI.
What is the GI?
The Common types of GI.
The first continuous hot-dip galvanised steel strip production line was established in the USA in 1937 and the first continuous electro-galvanised steel strip production line was built in the USA in 1942, which has been in industrial production for over 70 years.
Recently, more and more industries have begun to pay attention to the service life of materials, and the use of painted cold rolled steel no longer meets the requirements in terms of corrosion resistance. In this context, hot-dip galvanised steel, with its excellent corrosion resistance and low cost, has come into general use. Due to its excellent corrosion resistance, paintability, decorative properties and good formability, GI is now useful in a wide range of applications.
GI is a welded steel sheet with a hot-dipped or electro-galvanised surface, which can be considered a typical representative of the modern metal industry. This material is generally used extensively in construction, home appliances, vehicles and boats, container manufacturing, electromechanical industry, etc. At the same time, GI has excellent heat resistance, heat transfer and heat reflection, formability and weldability.
The most common classification of GI is the difference between hot rolled and cold rolled. It is worth noting that the free torsional stiffness of hot-rolled sections is higher than that of cold-rolled sections, so the torsional resistance of hot-rolled sections is better than that of cold-rolled sections.
Cold rolled steel sheets are made from hot rolled coils, rolled at room temperature below the recrystallisation temperature, and are produced through a cold rolling process, referred to as cold plate. The thickness of cold rolled sheet is generally between 0.1 and 8.0mm. It is worth noting that cold-rolled is a steel plate that is further thinned to a target thickness at room temperature below the recrystallisation temperature. Compared to hot-rolled steel, cold-rolled steel is more accurate in thickness and has a smooth surface.
In addition to the classification of cold-rolled and hot-rolled, GI can also be divided by zinc The size of the zinc bloom and the thickness of the zinc layer can indicate the quality of the galvanisation, the smaller and thicker the better. Manufacturers can also add a fingerprint-resistant finish. There is also the possibility of distinguishing by its plating. With the above information, do you have a better understanding of this product? HANNSTAR INDUSTRY COMPANY LIMITED is a professional manufacturer and exporter of hot dip galvanized (GI), hot dip galvanized aluminium sheet (GL/ALUZINC STEEL), colour coated galvanized / hot dip galvanized aluminium sheet (Aluzinc steel), tinplate. We also offer metalworking machinery. For any of our products, our company has strict quality control. If you need more information about our products, please do not hesitate to contact us and we will provide you with the best service.
