Measures To Reduce Cooling Effect Of Color Coated Aluminum Coil

The main reason for the cold insulation of Color Coated Aluminum Coil is that the meniscus area on the surface of the condensing plate is cooled strongly, which causes the alloy liquid in this area to solidify too fast. Therefore, all measures that can reduce the cooling effect of the condensing plate are conducive to reducing or eliminating the cold insulation defects.

1. Reduce the cooling intensity of the condensing plate

The cooling intensity of the condensing plate is mainly affected by the cooling water flow rate of the condensing plate, so reducing the cooling water flow rate can reduce or eliminate the cold insulation defects. Of course, reducing the cooling strength of the condensing plate will make the semi-solid support layer thinner, which may cause it to "crack" or "collapse" and mix with alloy liquid after leaving the support of the condensing plate, so the reduction in cooling strength is limited.

2. Raise pouring temperature appropriately

According to relevant theories of metallology, the higher the temperature of molten metal, the lower its viscosity, that is, the better its fluidity, and the surface tension also decreases with the increase of temperature, thus reducing the additional pressure and hindering the formation of cold insulation. Therefore, properly increasing the pouring temperature is conducive to eliminating the cold insulation defects. However, increasing the pouring temperature will slow down the crystallization speed of the alloy, cause coarse grains, and cause segregation nodules on the outer surface of the casting blank. Therefore, it is also limited to eliminate the cold insulation defects by increasing the pouring temperature.

3. Set up thermal insulation layer

The fluctuation of the liquid level in the crystallizer will increase the contact area between the alloy liquid and the condensing plate, thus increasing the degree of cold separation on the surface of the semi-solid support layer. In addition, in order to improve the stability of the interface bonding of the multi-layer casting blank, the thickness of the semi-solid support layer when separating from the condensing plate is required, and the solid phase ratio and the surface temperature are as stable as possible. Under the condition that the blank drawing speed is constant, the height of the cooling section of the condensing plate must be fixed, so heat preservation materials are installed on the cooling surface of the condensing plate to form a heat preservation layer.

4. Increase the liquid level in the crystallizer

Increasing the height of the alloy liquid level in the crystallizer can ensure the heat supply of the metal liquid near the condensing plate, and can also increase the static pressure of the alloy liquid to offset the effect of additional pressure, thus being beneficial to reducing or eliminating cold insulation. In addition, increasing the liquid level can also buffer the speed of newly poured alloy liquid and reduce its impact depth, which will improve the effect of gate on uneven temperature distribution of alloy liquid in the crystallizer.

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Aluminum Corrugated Panel Has Strong Corrosion Resistance

Aluminum Corrugated Panel https://www.alubang.net/produc....t/aluminum-corrugate is also called corrugated aluminum panel, special-shaped aluminum panel, aluminum tile, etc. It is a product of deep processing of aluminum panels.

The base material of corrugated panel is high-hardness alloy aluminum panel, which is cold rolled into various corrugated panels. The processed aluminum tile has light weight and its density is only one third of that of steel.

Advantages of Aluminum Corrugated Panel:

1. The aluminum corrugated panel is easy to process and form, the construction is convenient and quick, and the construction strength is greatly reduced.

2. The aluminum corrugated panel is beautiful and elegant. Aluminum skin is used for thermal insulation and exterior decoration, with very good visual effect.

3. The service life of the aluminum corrugated panel is long, the aluminum corrosion resistance is good, and the shelf life exceeds 15 years.

4. Aluminum corrugated panels have high recycling value. Iron sheets will corrode and rot after several years of use, with little recycling value. However, due to its corrosion resistance, the value of aluminum coil after recycling is much higher, at least more than 80% can be recycled.

5. Aluminum corrugated panels are widely used in thermal insulation projects such as power plants, chemical plants and pharmaceutical factories.

Application scope of aluminum corrugated panel:

(1) Building curtain wall external wall hanging panel

(2) Interior decoration engineering

(3) Shipbuilding

(4) Aviation Industry

(5) Indoor partition and commodity display platform

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Stainless Steel Composite Panel Conforms to Modern Social And Economic Concepts

Stainless Steel Composite Panel is a composite panel formed by combining carbon steel base and stainless steel cladding. As the name implies, stainless steel is widely used because of its good rust resistance and corrosion resistance. It has the advantages of high strength, good corrosion resistance, firm compounding, good processing performance, low cost and so on. It is applied more and more widely in all walks of life. Its excellent performance and price are welcomed by users and have broad market prospects. So how do we choose high-quality stainless steel composite panel? I believe this is also a problem that most people are very concerned about, so we will introduce you some considerations when choosing a good stainless steel composite panel.

1. Stainless steel composite panel must have good corrosion resistance first. We should consider the application of stainless steel composite panel and judge whether corrosion is detailed according to specific requirements.

2. We often say that the corrosion resistance, rust prevention and corrosion resistance of stainless steel composite panel refer to the necessary conditions (culture medium, impurities, pressure, concentration, temperature, speed and other factors), not corrosion without rust in any environment. Because the corrosion resistance of the composite panel is relative.

3. When we choose a stainless steel composite panel, corrosion resistance is the first consideration, because the research of materials usually focuses on the corrosion resistance function of stainless steel.

4. For stainless steel equipment, if parts fail, due to corrosion, cutting should be carried out. This is the way to be taken after discovery when corrosion damage analysis is carried out.

To sum up, stainless steel composite panel is a new energy material that is economical and practical. Choosing high-quality stainless steel composite panel conforms to the modern social and economic concept and serves many purposes.

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