What should we pay attention to in the production of alloy pipe Mixed pass system. According to the characteristics of rolling mills and products, in order to give full play to the advantages of their respective systems and overcome their disadvantages, mixed pass system is often adopted, that is, the combination of more than two systems. For example,ChuanguHow much is 300 welded pipe per meter, straight leg cross rolling pass system is adopted for finished hole and front hole of finished product, and bent leg cross rolling system is adopted for other passes; or direct rolling system is adopted for rough rolling hole and straight rolling system is adopted for the last ~ finish rolling holes Leg oblique tie hole, etc.Chuangu,The fourth is the welding process method to ensure the strict implementation of the special operation method of galvanized pipe. The welding process includes pre welding groove inspection, control of welding process parameters and operation methods post welding appearance quality inspection, and post welding nondestructive testing if necessary. Control the welding level and the amount of welding materials at each crossing. Remove defective pipes within the allowable length.Centre de Flacq,When we carry out different projects, we must use different raw materials, alloy pipe is widely used. In many projects, we will apply it, so it is very popular in the field. When people carry out the construction of alloy pipe project,ChuanguHow much is 80 welded pipe per meter, there are many things that must be paid special attention to. Let&#;s take you to know:Carburizing: carburizing is the process of penetrating carbon atoms into the surface layer of steel. It also makes the low-carbon steel workpiece have the surface layer of high-carbon steel, and then after quenching and low-temperature tempering, the part of the workpiece can maintain the toughness and plasticity of low-carbon steel. Peak crack

Classification introductionIt is divided into circular welded pipe and special-shaped (square, flat etc.) welded pipe.I-beam is a kind of economical section steel with better section mechanical properties. Its characteristics are as follows:Quality assurance, Hot stamping. Fix the plan product workpiece or preformed vacancy on the rotating journal, with the wheel working pressure vacancy, radial wheel. After one or several solutions, there can also be a variety of methods for the whole process of hollow thick wall rotating body products. Products manufactured by high-precision processing method have excellent physical properties, specification scope, mold shell and software requirements, which are very simple,ChuanguHow much is 50 galvanized pipe, and relatively low product cost. The processing time is not long enough, the processing capacity is not high the total length of processing pipeline is limited, and the size of machinery and equipment is generally short.→ wide flange and large lateral stiffness. Strong bending resistance.Pass design

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.How much is it,Mixed Scabs are distributed periodically, and the situation after casting and rolling is significant through edge flame peeling crack inspection or billet scratch flame removal.Galvanized pipe features:I-beam is a long strip steel with groove section, which belongs to carbon structural steel for construction and machinery. It is a section steel with complex section, and its section shape is groove shape. China&#;s imports of I-beams are greater than its exports. The main producing areas are Tangshan Iron and steel, Baotou Iron and steel, Shangang, huangte, Maanshan Iron and steel, Japan iron and steel, etc.Chuangu,Requirements of alloy tubes for low and medium pressure boilersWhat is the stainless steel passivation of alloy pipe?Defects of alloy pipe and solutions: