Galvalume coil introduction

Galvalume coil is also known as aluminized zinc coil

Aluminized zinc coil refers to the color steel plate made by cold rolling or hot rolling on the zinc surface with zinc as the substrate and aluminum as the surface coating.  Aluminum-plated zinc coil has been widely used in the construction industry because of its excellent appearance, high corrosion resistance, easy processing and installation.  First of all, the aluminized zinc coil has a high-quality appearance.

Usually, the zinc surface has to be measured and sandblasted, and the surface finish and coating effect are high, which makes the aluminized zinc coil have stronger corrosion resistance and anti-aging properties.  Secondly, aluminized zinc coil has high corrosion resistance, and its surface has good corrosion, which can effectively resist acid rain and other damage under various climatic conditions. 

Material analysis of aluminized zinc coil

First, the basic properties and characteristics of aluminum-plated zinc coil  

Aluminized zinc coil is a material made of zinc aluminum alloy coated on the surface of steel plate after a series of process treatment.  It has the following characteristics:  

1. Strong corrosion resistance: the surface of aluminized zinc coil has zinc and aluminum elements, which can effectively resist the erosion of atmospheric, water, acid, alkali and other chemical substances, and increase the service life of the steel plate.  

2. Good high temperature resistance: the surface coating of aluminized zinc coil uses high temperature baking paint, which can maintain the color and luster of the surface at high temperature, and will not fade.  

3. Good processing performance: aluminum plated zinc coil has excellent processing performance, can be shear, stamping, bending and other processing, made into different shapes of components and parts. 

Our product features

The difference between aluminized zinc coil and galvanized coil

First, the material is different  

Galvanized coil is made of low carbon steel coil as the base material, after pickling, washing, drying and a series of processes, and then hot dip galvanized.  On the basis of galvanized coil, aluminum, zinc and other metal elements form a composite coating with the substrate through electrolytic deposition technology.  Therefore, there is a clear difference between the two materials.  

Second, the process is different  

The process of manufacturing galvanized coil is relatively simple, and its main process is pickling, washing, drying, hot dip galvanizing and cold rolling.  The process of aluminum-zinc plating coil is more complex, its main process includes pickling, washing, drying, hot dip galvanizing, electrolytic deposition layer, drying, cold rolling and other links.  

Three, different characteristics  

Galvanized coil has the characteristics of anti-corrosion, anti-rust, beautiful and so on, but after a period of use, the surface is easy to produce rust spots, rust spots and other corrosion phenomena.  Aluminized zinc coil is a new type of metal material, and its coating contains aluminum, zinc and other metal elements, which can effectively improve the corrosion resistance and weather resistance of the material, and has excellent weather resistance, corrosion resistance and decorative.  

Four, Different applications  

Due to the difference in characteristics, the two are also different in application.  Galvanized coil is widely used in construction, automobile, electrical, furniture and other fields;  In addition to the use of galvanized coil, aluminum coated zinc coil is also widely used in Marine, chemical, power station, climate and other more demanding working environment.

The effect of aluminum on galvanized products also has two aspects:

First, aluminum improves the adhesion of the coating, and the iron-aluminum compound layer can play the role of the medium, so that the steel base and the coating are closely combined together, which can improve the stamping and forming performance of the galvanized sheet, and will not cause the coating to fall off during deformation.

Second, aluminum can improve the uniformity of galvanized sheet, aluminum makes the coating less affected by the iron-zinc reaction, the thickness of the coating is uniform, and at the same time improve the appearance of galvanized products. 

Second, pay attention to product specifications and parameters.  

Different application scenarios have different requirements on the specifications and parameters of aluminum-plated zinc plates.  When purchasing, it is necessary to pay attention to the key parameters such as the thickness, width, length and galvanized amount of the product according to the actual needs.  For example, the construction field usually needs to use thicker aluminum-plated zinc plates to ensure load-bearing capacity and stability, while the home appliance field does not have high requirements for the thickness of the plates.  Therefore, when selecting aluminized zinc plate, it is necessary to select the appropriate product specifications and parameters according to the actual needs.  

Third, consider the price and cost performance.  

In the purchase of aluminum plated zinc plate, price is also a factor that cannot be ignored.  Different brands, specifications and parameters of aluminized zinc plate prices may be greatly different.  In the pursuit of good products at the same time, also need to pay attention to its cost performance.  It is suggested that in the selection, a number of manufacturers for price comparison, combined with product performance, after-sales service and other aspects of comprehensive evaluation, choose cost-effective products.