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2016-08
Galvanized steel plate substrate is composed of 55% of aluminum, 43.5 of zinc and 1.5 of silicon alloy coating, its anti-corrosion ability of the same conditions of galvanized steel plate substrate 4-6 times, is used for roof, outside the wall is ideal material. Galvanized zinc plate has been proven to have the following characteristics: extraordinary weather resistance and the use of more than 20 years without maintenance. The recent test results of the early products of the roof/wall system show that the main body performance is intact without any maintenance under the action of decades of strong sun rays, exposure, erosion of industrial excrement and temperature stress. Worldwide over 0.5 billion
2016-08-22
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2016-08
Introduction of curing process of color steel coil
In the production process of color steel coil, the substrate can pass through the baking furnace at a maximum speed of 140 m/min. In order to ensure a satisfactory curing time, the length of the baking furnace is generally 30~50m. After the substrate is painted, both sides are wet paint film. In order to make the substrate hang through the furnace chamber, there are generally two furnace types: air floating type and hanging type. The air flotation type uses the upward airflow in the furnace to hold the substrate. The overhang type uses the tension of the front and rear tension rollers of the strip to control the orientation of the strip steel in the furnace. Because the interval is long, the substrate will have a certain overhang degree. It is necessary to plan the furnace cavity into an anti-bow type. Color coating unit generally use hot air heating, there are also options
2016-08-22
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2016-08
About the main process of color coated board layer
Coating production process The world's production of colorful coating board process is the first roller coating method, electrostatic powder coating method and curtain flow method. Roller coating method is now the production of color coated plate a contrast sophisticated, and is throughout the selection of the production process. The liquid coating is applied to the upper and lower surfaces of the strip steel by a roller coater, and is baked, solidified and cooled to complete the production of the commodity. The number of units using this production process is the largest, and the units can be produced at high speed and in large quantities. Commodities can be used for occupations such as construction, household appliances and cars, and can be carried out on the same unit together with film coating. Roller coating machine is a primary factor affecting the production of roller coating. When equipping the roller coating machine, we must first think
2016-08-22
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2016-08
What is the difference between open plate and medium plate, hot rolled coil plate and open plate
There are many types of steel plates, and it is inevitable that many people will be confused. Zhengzhou Jinchengda, as a one-stop supplier of open plates, diamond plates, hot-rolled coils, and general plates, still has a certain understanding of steel. Integrity management for 20 years, the next for you about the difference between a variety of common steel plate, to facilitate your learning and understanding. In fact, the difference between the steel plate in the name can be distinguished, for there is also a certain difference. Only in the process of continuous contact can we have a deeper understanding. General plate is the abbreviation of ordinary hot-rolled carbon steel plate, generally refers to the material for the Q235 series of sheet. Medium plate generally refers to more than 20mm to 50
2016-08-22
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2016-08
The market demand for open-screen panels will also be affected by the season.
The changing seasons will have a certain impact on many industries. For example, the sales volume of down jackets in winter must be dozens of times that of summer, and bathhouses are only open in autumn and winter. These are the basic common sense of life, and everyone understands. The steel plate market will also be affected by the season. Although sometimes it is not particularly obvious, we should see that only in this way can we maintain the stability of the merchants in the flat plate market. At present, as far as Henan region is concerned, entering the off-season of climatic demand in winter, the process of de-stocking of flat plates in China may be blocked. According to the industry senior analyst said: "affected by the weather, the current North
2016-08-22
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2016-08
Galvanized steel sheet is to prevent the surface of the steel sheet from being corroded to extend its service life. The surface of the steel sheet is coated with a layer of metal zinc. This zinc-coated steel sheet is called galvanized sheet. According to the production and processing methods can be divided into the following categories: ① hot dip galvanized steel sheet. The thin steel plate is immersed in the molten zinc bath, and a layer of zinc is adhered to the surface of the thin steel plate. At present, it is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in the molten zinc plating tank to make galvanized steel plate; ② alloying galvanized steel plate. This kind of steel plate is also made by hot dipping method, but immediately after the groove, it is heated to about 500 ℃, so that the formation of zinc and iron alloy film. This
2016-08-22
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2016-08
Application fields of pearl cotton
The environmental protection characteristics of PE pearl cotton have been recognized in the world. Because of its light weight, the transportation cost of packaged products is greatly reduced; because of its shockproof resilience, the product packaging has good impact resistance, especially the buffer effect of multiple shocks remains almost unchanged. Therefore, EPE pearl cotton is widely used in product packaging. The following is a small series of chuangyu pearl cotton manufacturers to introduce the application fields of pearl cotton. EPR is widely used in electronic appliances, instrumentation, computers, audio, medical equipment, industrial control chassis, lighting, handicrafts, glass, ceramics, home appliances, spraying, furniture, wine and gift packaging,
2016-08-22
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2016-08
Anti-static pearl cotton coil is a new type of anti-static environmental protection packaging material, also known as anti-static EPE, is made of low-density polyethylene by physical foaming, with shockproof, non-fragile, anti-impact effect. It is widely used in the turnover of mobile phones, modules, and other electronic products on the water supply line, as well as in-depth protection for finished products. More suitable for packaging in various fields. The composite products of pearl cotton and aluminum foil or aluminized film have excellent anti-infrared ultraviolet ability, and are substitutes for some chemical equipment cold storage and camping equipment car sunshade. Because the pearl cotton bar has the above characteristics, it is now also widely used in the original
2016-08-22
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2016-08
How to judge the quality of pearl cotton
1, look at the softness. Only the pearl cotton with strong softness can probably play a good role in covering the product during the transportation process, which is the most tense. 2, look at the heat insulation. Many products have temperature requirements during transportation. If the temperature does not meet the standard, the result of transportation will not be good, which will probably cause disputes on both sides. 3, look at the waterproof. Pearl cotton is another indicator of tension is waterproof, usually pearl cotton are independent bubble foam, this scale is to allow the transport of the product from the impact of the external climate. A new type of environment-friendly foaming material with high-strength buffer and anti-seismic ability.
2016-08-22
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2016-08
High quality performance of aluminized zinc plate
Galvanized steel sheet is a new type of steel sheet, which is made of cold-rolled or hot-rolled steel sheet processed by hot-dip plating and its excellent corrosion resistance is gradually replacing galvanized steel sheet and is widely used all over the world. Galvanized steel sheet usually has the following characteristics: 1. super corrosion resistance: the corrosion resistance of galvanized steel sheet is 6-8 times that of the general galvanized sheet, usually can guarantee 20 years without rust. 2. High temperature oxidation resistance: Galvanized steel sheet will not change color or deformation for a long time in a high temperature environment of 315 degrees Celsius. 3. High thermal reflectivity: The thermal reflectivity of galvanized steel sheet is higher than 75%, which is about 2
2016-08-22