Aluminum alloy PK steel doors and windows 2013 who are more sought after?

[China Aluminum Industry Network] The person in the industry knows that various types of alloys made of aluminum and various metal elements have advantages unmatched by other materials. They are light in weight and high in strength and can be squeezed into new ones used in various periods. Complex section material. Experts predict that although aluminum alloy doors and windows have suffered from weak market performance in recent years due to the impact of low-grade products, in the future, driven by the development of the real estate industry, aluminum alloy doors and windows have low corrosion resistance, small amount of deformation, strong fire resistance, and use. The long life, environmental protection and energy saving characteristics determine that it is still the mainstream in the market in the future.

Aluminum alloy doors and windows came out in China in the early 1980s. Due to its unique advantages of lightness, corrosion resistance and other unique advantages, it gradually replaced the original steel window and was favored by consumers. However, the development of plastic steel doors and windows in the past two years is fast, which has caused a significant impact on the market of aluminum alloy doors and windows. Some people believe that the aluminum door and window frame has a strong thermal conductivity, which is not conducive to heat insulation, and plastic insulation can save energy. In response to this statement, the experts of the Aluminum Products Committee of the China Building Decoration Association believe that, in fact, the heat insulation is mainly glass, not window frame material.

All along, steel windows are generally used in low-rise dwellings. This is because, on the one hand, plastics are subject to problems such as aging and cracking; on the other hand, due to the gap between the plastic and the steel plate in domestically produced plastic steel, air and water can enter and gradually corrode the steel plate, failing to ensure strength and rigidity. So at present, many plastic window frames are not straight, and they often cannot be easily opened and opened. In contrast, the unique advantages of aluminum alloys have long been recognized around the world. They can be used to make multi-function doors and windows of various complex sections. The service life can exceed 50 years or even longer. It is difficult to replace ordinary materials, and steel doors and windows cannot match.

Under the dual pressure of plastic steel grabbing the market and foreign aluminum doors and windows factories entering the market, many companies believe that consumers abandon aluminum alloys mainly because they are not confident about thinner and thinner aluminum materials. If they continue to use low quality and low prices, A product will seize the market and will soon be eliminated from the market. To survive, companies must rely on high technology, speed up the development of new products, and create their own brand as soon as possible. For example, in order to be able to insulate steel from steel, companies can produce insulated aluminum short-bridge profiles that achieve the same thermal insulation as steel windows. Industry insiders pointed out that the impact of steel doors and windows made domestic enterprises aware of the need for innovation and quality. The opportunity to join the WTO made them feel a lot of pressure and challenges. Like the large-scale aluminum alloy door and window production and listed enterprises such as the Northern International Xilin Aluminum, as the backbone enterprises of the industry, this year will take the road of expansion to the quality service brand, and it is also the high-tech and high-quality development of aluminum alloy doors and windows. As a new-type building product, steel doors and windows of the year have seen a sudden rise in the market of doors and windows in the past two years. The market share has greatly exceeded that of ordinary wood, steel doors and windows, and color-coded doors and windows, all of which have spurred aluminum alloy doors and windows. More information shows that the next century will be the world of steel doors and windows. By then, aluminum alloy doors and windows will retreat to the ranks of being eliminated. So, whether the steel doors and windows and aluminum alloy doors and windows are better or worse, we may compare them by the following performance characteristics.

1. Sound insulation performance According to statistics, the sound insulation performance of plastic steel doors and windows is much better than aluminum alloy doors and windows.

For example, for a building that meets the same noise requirements, the distance between the building that installs aluminum alloy doors and windows and the main roads for traffic needs to be 50 meters away, and if it uses steel doors and windows, it can be shortened to within 16 meters.

2. Insulation performance refers to insulation performance, we need to compare the basic technical parameters of the material, such as the thermal conductivity of PVC material is 0.14, while the aluminum alloy is 175. In other words, under the same conditions, in terms of material thermal conductivity, aluminum is 1250 times that of PVC. Of course, if PVC is made into doors and windows, it is difficult to generalize the comparison of energy consumption. Because the interior loses heat, it is usually associated with roofs, floors, walls, doors and windows. However, scientific research shows that as an ordinary residence, air conditioning is also turned on, and rooms with plastic steel doors and windows have more than 5 degrees of electricity per day than rooms equipped with aluminum alloy doors and windows.

3, corrosion-resistant steel doors and windows can be acid and alkali and other chemical corrosion, it is not afraid of urban environmental pollution, hydrochloric acid and acid rain and other erosion. The aluminum alloy is not so easy to cause surface oxidation and shorten the service life.

NY300 Asbestos Jointing Sheet for Oil-Resistance 

Description:NY300 Asbestos Jointing Sheet for Oil-Resistance is made by long asbestos fiber in high quality and oil resistant synthetic rubber as the main materials.

Usage:Suitable for the mediums of temperature under 300℃ and pressure under 3.0Mpa  kerosene,mineral oil,plant oil,hot chemical solvent oil,etc transmitted in the joints of facilities and pipelines.

TEMP:300℃(max)

PRESS:3.0MPa(max)

Dimension:1540x1360mm(recommend) 

4100×1500mm; 4500 x 1500mm;2000×1500mm;

1500×1500mm;1500×1000mm;1270×1300mm; 3810×1300mm 

Thickness:  0.5~6.0mm

Technical data:

Lateral Tensile Strength MPa      â‰§12.7    

Compressibility %               7~17  

Recovery%                      â‰§50 

Density g/cm³                    1.6~2.0  

Normal temperature softness   No cracking  

Oil Resistivity Test:

Immersion IRM903 Oil keeping 5h (149℃)

Lateral Tensile Strength(MPa)       â‰¥ 9.0  

Weigh gain rate(%)                  â‰¤30  

Immersion ASTM Fuel Oil B keeping 5h(21-30℃)

thickening rate (%)                 0~20  

Oil sealing properties under normal Temperature

Medium:RH-75 Avgas  

Pressure:   15Mpa  No leaking keeping 30 minutes  

Nitrogen Leakage Rate ML/(h•mm)≦300

NY300 Asbestos Jointing Sheet for Oil-Resistance


Ny300 Asbestos Jointing Sheet For Oil-Resistance

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