Difference and application description between H-beam and I-beam Special rolling method. When it is difficult to roll the required I-beam by the usual rolling method for some reason the special rolling method can be used to make full use of the skills of uneven deformation and pass design. For example, when the billet section is narrow and wide I-beam is required to be rolled, the wave rolling method can be used; for example, when the billet is wide and small I-beam is required to be rolled, the negative rolling method can be used Spread rolling, etc.Dominican DaGenerally speaking, the precision of seamless pipe is relatively low, and it is prone to uneven wall thickness low surface luminosity and high customization cost. At the same time, some pits or black spots are easy to appear on the inner and outer surfaces. In addition to these, the seamless pipe manufacturer needs to carry out off-line processing for its detection, and its strength is relatively high, the pressure is high, and its advantages can be reflected in the material of mechanical structure. Seamless pipe can be divided into hot extrusion, hot rolling and cold rolling stainless steel pipe according to its rolling method. In addition, different elements can also be used for classification. The inner and outer surfaces of seamless pipes shall be free from chaps, folds, cracks,Dominican DaHow much is an 18 I-beam, cracks, scabs, delaminations and other defects. If these defects are to be removed, it is necessary to use machining. The removed seamless pipes shall not have negative deviation after the inner diameter is followed, If other minor surface defects with negative deviation cannot be removed, it is not a qualified product. The allowable depth diameter of straight path of seamless pipe is less than or equal to mm, and its depth shall not be greater than . mm.Application characteristics of I-beamCotui,H-shaped steel groove is deep and thick, and can withstand forces in two directions.I-beam is mainly divided into ordinary I-beam, light I-beam and wide flange I-beam. According to the height ratio of flange to web, it is divided into wide, medium and narrow flange I-beams. The specifications of the first two are -, that is, the corresponding height is -. At the same height, thin web and light weight. Wide flange I-beam, also known as H-beam, so it is also called 'universal I-beam'. Ordinary I-beam and light I-beam have formed national standards.When it is used for ground heating and hot spring transportation, 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, and the second is that the inner surface of the flange has no inclination, and the upper and lower surfaces are parallel. The section characteristics of H-beam are obviously better than those of traditional I-beam, channel steel and angle steel. Sulfur is a harmful impurity in steel. Steel with high sulfur content is easy to embrittle during pressure processing at high temperature, which is usually called thermal embrittlement The small length of repair welding is mm; The raw material shall not exceed mm after grinding by welding edge.Process inspection,Key technical characteristics of alloy pipe:Pass designThe specification of pass design I-beam is expressed in cm of waist width. For example, the waist width of No. I-beam is. The types of I-beam include hot-rolled ordinary I-beam, light I-beam and wide parallel leg I-beam (H-beam). The waist width of hot-rolled ordinary I-beam in China is ~, 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.

Plan scheme : for high carbon steel with carbon content of more than .% and high chromium alloy pipe with chromium content of no less than %, the interval is min.wholesaler,Alloy pipes are widely used in building materials,Dominican DaAlloy pipe, and the test standards of alloy pipes are also different. Alloy pipe has high hardness and can be used at many levels, most of which is prestressed reinforcement. Where plastic deformation is not specified but compressive strength is specified, such stainless steel plate can be applied.The grid spacing size and number of reinforcement of electric welding reinforcement mesh are correct, which overcomes the phenomenon of large spacing size error and missing binding and buckle of binding quality caused by manual placement of reinforcement in traditional manual binding. The welded steel mesh has high strength and good elasticity. When pouring concrete, the steel bar is not easy to be partially bent and does not change. Because it is considered that the longitudinal and transverse steel bars are spot welded into a mesh structure, so as to achieve the goal of side-by-side average stress and bonding anchor.Aiming at the connective tissue and texture produced in stainless steel plate Position and other crystal defects are generally removed by heat treatment processes such as quenching or quenching. The effect of quenching is to optimize the crystal, eliminate structural defects, reduce strength,Dominican DaHow much is 65 galvanized pipe, improve plastic deformation, and also conducive to cold drawing. In the production and manufacture of cold drawn alloy pipe, quenching machinery and equipment cannot be lacked. Therefore, the formulation of appropriate annealing process is a necessary condition to ensure that the alloy pipe mechanism meets the standard and the commodity does not crack. If the manufacturer in order to better one sidedness, reduce the product cost and reduce the quenching process, it will eventually lead to bad harm to the product quality.Dominican Da,Patented manufacturing process of I-beam: I-beam has become a new industrial standard for wear-resistant materialsH-section steelPlan scheme : Martensitic chromium alloy pipe and chromium alloy pipe with Cr composition exceeding %, without high carbon steel and high chromium alloy pipe. The aqueous solution contains % sodium cyanide % ~ % (volume ratio), the solution temperature is ~ ℃, and the solution time is min.