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Are there any restrictions on the thickness of the steel plate, such as the minimum thickness of the steel plate?
- No minimum, no maximum, no requirements, what kind of plate can be welded, but the welding method is not the same as welding equipment.s
The differences and uses of cold rolling and hot rolling
- Cold rolled forming steel allows partial buckling of the cross section, thus taking full advantage of the post buckling capacity of the member, while the hot-rolled section does not allow partial buckling of the cross section.s
What do you pay attention to?
- Considering the quality factor, quality of the primer must have good corrosion resistance, and the old paint film or metal layer has good adhesion, excellent filling force, smooth surface; from the construction perspective, quality should be applied to the body of the primer, vehicle repair and local repair; from the view of time and operation high quality, primer volatilization and shorter drying time and simple mixed paint; considering body material, quality repair primer should be used for the old paint, aluminum, galvanized steel, stainless steel, fiber, plastic products, hard wood, putty and other substrates.s
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.s
Is the cold rolled steel plate good or the stainless steel plate?
- The cold rolled steel itself, whether washed by acid car wash, semi-finished products, or rolled out by cold rolling mill semi-finished products, their rust resistance is very poor. It is easy to oxidize, resulting in rust on the surface of the air. It will not rust until it has been plated with aluminum or zinc, and it is clear that the process is complex and unsafe.s
What is a fixed length steel plate?
- Please check the standard: GB/T706-2008 hot-rolled steel fixed length is in accordance with customer requirements made of length, usually 6 meters, 9 meters looks
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.s
How can the steel plate of flat welding 10mm make its deformation smaller?
- High technical content is: two side groove, one side of the groove is deep, one side of the groove is shallow, the depth of difference is a seam, the two sides welding at the same time, pay attention to the deep groove of this face to be in the lead.Other ways to prevent the in-plane deformation of steel plate are: back welding, skip welding and so on.s
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