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CORRIGATED SHEET    7210701000

Product Name:corrugated steel roofing sheet

Effective Width:650mm to 1250mm


Material PPGI/PPGL steel coil


Color:white,blue or any RAL colors

length:1m-11.8m according to the container

top color coating:12um-25um

Back color coating:7um-10um



In continuous units in cold rolled steel strip, galvanized steel (electro galvanized and hot dip galvanized) as substrate, after surface pretreatment (degreasing and science processing), using the method of roll coating, coated with a layer or multi-layer liquid coating of plate, after baking and cooling income is the coating steel plate. Because the coating can have a variety of colors, on the habits of the coated steel sheet is called color coating steel plate. Because the coating is carried out before the sheet metal forming, in foreign countries which is called pre coating plate.

Color coated steel sheet is an organic coating coating on the steel surface, it has the advantages of beautiful appearance, bright color, high strength, good corrosion resistance, easy processing molding, but also allows the user to reduce costs, reduce pollution.

From the United States in 1935 to establish the first continuously coated steel line to begin, color coated steel plate has been widely applied, the current color coated plate varieties, about more than 600 kinds, the advantages of color coated sheet and organic polymer and steel plate of the two, which has good colorability, organic polymer molding, corrosion resistance and decorative, and steel plate with high strength and easy processing, can easily be punching cutting, bending, deep drawing processing. Made this makes organic coated steel sheet products have excellent practical, decorative, workability, durability.

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Q:Steel plate coated cement mortar, how can bonding firm?
The simplest method is mortar plus adhesive; the additive used for bonding steel is not cheap.
Q:What are the reasons for the steel mesh on both sides of the back pouring belt?
Increase overall stability. To prevent cracks due to settlement, uneven cement shrinkage, etc., but also to increase the overall firmness. Generally speaking, the stability of the post casting belt is increased.
Q:How is the weight of the steel plate calculated?
Steel plate by thickness, thin steel plate <4 mm (thinnest 0.2 mm), thick steel plate 4~60 mm, extra thick steel plate 60~115 mm.The steel plate is divided into hot-rolled and cold-rolled parts according to rolling.The width of the sheet is 500~1500 mm; the thickness is 600~3000 mm. According to the type of steel sheet, ordinary steel, stainless steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet; according to professional use, with drums board, enamel board, bulletproof plate; surface coating and plating, plating with zinc thin plate, tin plate, plating lead sheet, plastic composite plate.
Q:What is the difference between Q235A steel and Q235B steel?
Materials Q235A and Q235B belong to carbon structural steel. In the national standard GB700-88, the distinction between Q235A and Q235B material mainly in the carbon content of steel, the material is Q235A of steel, carbon content between 0.14-0.22%, Q235B of carbon content of steel between 0.12-0.20%;
Q:Which is good, z15 grade steel plate and z25 grade steel plate?
It is obvious that the fracture resistance of lamellar fracture is stronger than that of fracture shrinkage, that is, the lamellar tearing resistance of Z25 is better than that of Z15.
Q:What's the effect of water stopping between steel plate and water stop strip? What's the difference between the process and the sealing process?
Water stopping principle: the water stop bar is expanded by water absorption and then squeezed with concrete to stop the void.Construction technology: the stop bar is square long strip, and parallel lap method is adopted when connecting. No break point can be left in the middle. Construction units in order to facilitate, often like to use the water bar, concrete pouring in the completion of the pressure on the wall concrete pouring surface, or reserved groove, two times mosaic.Good and bad analysis: simple construction, less investment, relatively economic. But there is no water stopping effect and the water stopping steel plate is good. There are many unforeseen problems during the construction process. One is that the reinforcing bars are not close enough to be laid. Two is the time is too long, moisture absorption expansion, the impact of the effect, especially in the rainy season, air humidity, rainfall, water retention is worse. Three construction joints are not smooth, poor contact. Usually, this method is not ideal for stopping water. For example, when the water stop bar is installed, the retaining of the groove is too large to be fixed effectively; the small inlay is not in place; when the concrete is poured, the utility model is easy to shift under the action of the concrete buoyancy.
Q:How many times a day can a steel pile be inserted?
U type steel sheet pile generally has two kinds: one is the PU steel sheet pile, whose width is 600mm; the elastic bending moment from 600 ~ 3200cm3/m; reuse rate reached 30; very thick, suitable for high salinity, strong durability; two AU steel sheet pile, whose width is 750mm, the elastic cross section the surface resistance moment from 1410 to 2580cm3/m; and PU steel sheet pile compared to AU steel sheet pile is thinner and lighter but stronger; another angle, easy to pull out from the soil pile.
Q:How to choose welding method for welding different plate and thick steel plate?
Plate groove, the groove thickness is less than or equal to the thickness of the sheet, the welding arc to a plate, the molten pool of molten iron melt sheet, the specific point of view of plate thickness difference, observe the molten pool adjust current, prevent sheet welding, double-sided welding when necessary.
Q:Should the carbon fiber reinforce the steel bar on the side of the beam?
Not necessarily, mainly depends on how the design is calculated, usually put 100~200mm carbon fiber layering
Q:What does "Z" mean to the performance of steel?
The Z plate is used to prevent lamellar tearing of plates, the main connections at the plate, if the plates in the thickness direction bear significant tensile stress on the sheet.

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