Direct rolling pass system. The direct rolling pass system refers to the pass system in which the two open legs of the I-beam pass are on the same side of the roll axis at the same time, and the waist is parallel to the roll axis.I-beam can be divided into four types according to shape: cold-formed equal edge I-beam, cold-formed unequal edge I-beam, cold-formed inner crimping I-beam and cold-formed outer crimping I-beam.St. Catherine,The third is the welding machine, which must ensure reliable performance and meet the process needs; The welding machine must have qualified ammeter and voltmeter to ensure the correct implementation of welding process. The welding cable shall not be too long, and the welding parameters shall be adjusted when it is too long.Application characteristics of I-beam:Chiquimulilla,The key purpose of grinding and polishing alloy pipe is to moisten the surface, and the relevant limit accuracy or appearance change is not easy to change.Passivation treatment operation of alloy pipeI-beam

Function of I-beam: where is I-beam mainly used? Because the combination is strong, zinc iron is miscible and has strong wear resistance;Patented manufacturing process of I-beam: I-beam has become a new industrial standard for wear-resistant materialsFree consultation,St. CatherineHow much is a ton of galvanized pipe,The shape of small longitudinal crack on the surface of alloy pipe is less than mm The overall width is less than mm The depth is lower than .mm.Whether I-section steel is ordinary or light, because the section size is relatively high and narrow, the moment of inertia of the two main axes of the section is quite different, so it can only be directly used for members bent in the plane of their web or form lattice stressed members. It is not suitable for axial compression members or members with bending perpendicular to the web plane, which makes it very limited in the scope of application. I-beam is widely used in buildings or other metal structures.Classification introduction

The crack mainly occurs at -mm from the edge of the alloy pipe. The shape is several parallel vertical cracks of different sizes. The regularity is that the thicker the specification and model of the alloy pipe is The wider the width, the more serious the disadvantages.Excellent quality,H-shaped steel groove is deep and thick, and can withstand forces in two directions.Galvanized pipes shall be stored in dustproof to keep clean and new . As a professional manufacturer of galvanized pipe,St. Catherine45crmo alloy pipe, it can meet the requirements of refrigeration and achieve the practical effect of less damage. It is applicable to water conservancy engineering, mining and other industries to meet the provisions of cold cold and corrosion prevention. In addition,I-beam is widely used in buildings or other metal structures.Function of I-beam: where is I-beam mainly used?The specification of pass design I-beam is expressed in cm of waist width. For example the chemical raw material transmission pipeline has a wide indoor space.St. Catherine,St. CatherineAlloy pipe, light I-beam and wide parallel leg I-beam (H-beam). The waist width of hot-rolled ordinary I-beam in China is ~, expressed as No. ~ No., and the inclination of inner wall of leg is : The pass system of rolled I-beam includes direct pass system, cross pass system and mixed pass system. In addition, I-beam can also adopt special rolling method.