The flat plates and original flat plates should be referred to as shear steel plates and single rolled steel plates, respectively. When the steel plates come out of the steel mill, they are rolled up, and the flat plates after being machine flattened are called "flat plates", just like a whole roll of toilet paper. The internal stress level of the flat plates is high, so the dimensional stability is poor. With different process parameters during the Kaiping operation, the distribution of internal stress also varies, resulting in different bearing capacities in different directions of vertical length. And this bearing capacity is difficult to measure with general strength indicators. Therefore, there will be significant welding deformation when welding the flat plate, which is difficult to adjust So components with high requirements for appearance quality cannot use flat boards
Open flat plate is a steel plate that was originally produced by steel mills as a steel strip with a certain thickness and width, rolled according to user requirements. The original flat plate is rolled into the size required by the national standard when it leaves the steel plant. Generally, the original tablet size is strict, the performance is good, and the price is relatively high. Opening a tablet is relatively cheap, with slight differences in size. The thickness of the flat panel is 1.5-20mm, and the materials are Q235 and Q345. The main use is on non pressurized containers and storage tanks.
advantage:
One. The price is cheap and the length can be freely determined;
Two. Convenient transportation without considering the size of the steel plate;
Three. Easy to cut, steel plate size can be cut according to actual needs;
Four. It can effectively save materials. For example, a certain storage tank requires 20 pieces of 6800 × 1500 × 6 steel plates. The market steel plate sizes are generally 6000, 8000, and 9000 in length. If market steel plates are used, there will be small pieces of excess material generated. By using Kaiping board, 6900 steel plate can be directly used, saving materials, which is also the biggest advantage. Especially for stainless steel materials, the effect of saving materials and reducing costs is very obvious.
Disadvantages:
The disadvantage is that there will be significant welding deformation during welding, making it difficult to adjust So components with high requirements for appearance quality cannot use flat boards
