Steel inherent problems; a unit in the processing of a building box columns 1200 * 1200 * 60 in the welding process appeared suddenly found tearing 60mm steel price as the web plate, clearly visible crack in half the steel plate thickness direction, through NDT testing found the crack depth occurred at a depth of about 3mm, while another batch of the same type in the same cutting board a few parts for testing, found in a sandwich board memory, rolling poor quality is the main cause of quality problems. In the process of welding the welding stress due to welding materials produced will mezzanine opened. Hence there are planks in the thickness direction of the phenomenon tear Cause Analysis: As part of the special nature of the use of the web as a component in the component used in the longitudinal direction of the upper and lower parts welded in the welding formal opening of the full penetration groove stiffeners force of steel processing, due to the existence of a layered interior panels, welding welding stress generated thereby tearing out the release plate thickness direction. You can take the following measures in accordance with the actual situation of several processing: high-frequency welding H-beam using high-frequency current to the metal surface localized heating, welding it to the external force, without using any wire, flux, continuous mass production. 1. The cross-sectional dimensions of the advantages of high accuracy due to the use of high-quality steel coils, precision-sectional shape after welding fine, so that the structure of the assembly easier. 2. The cross section of the flange plate and the excellent performance of the web thickness ratio can be increased relative to the rolling steel install than steel at the same weight can be made greater bending performance, higher performance components cross-section; in the same cross-sectional performance, component lighter 3. sectional dimensions can be customized extensive use of case, you can. Press the user-specified cross-sectional dimension metallurgical properties of welded parts production 4. homogeneous web material and organizational flange plate material evenly fusion steel prices |. Huizhou Steel | Steel from Dongguan Jian Peng Peng Jiangang Structure Limited. Steel Co., Ltd., Dongguan City, Peng Jian (dgpengjian.cn) strong, credible, in Dongguan, Guangdong steel industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement Peng Jian innovative ideas will lead into the brilliant steel and you work for a better future!