ChalcisHigh pressure alloy pipe 15CrMoGWhat are the precautions for seasonal use

The finished product has smooth surface, low friction coefficient, wear resistance and maximum temperature of ℃Passivation treatment operation of alloy pipeChalcis,The second is the control of welding materials to ensure that the welding materials purchased are from formal channels, with quality assurance certificate and certificate, and the amount of one-time distribution shall not exceed half a day.Greatly reduce the environmental pollution caused by abrasion, damage and blanking, and increase the labor cost of material cleaningMolo,c. quality inspection is carried out for alloy pipes, so that the whole process of steel pipe processing is under reasonable inspection and supervision, and the product quality is reasonably guaranteed.H-beam is a widely used profile in steel structure buildings. It is different from I-beam. The first is the flange, 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.Welded steel pipes need to be processed through various processes before application. The heat treatment of welded steel pipes is a very important link in the processing of welded steel pipes. Hot working is a metal hot working process in which metal materials are heated, insulated and cooled in a certain medium, and their metal properties are controlled by changing the metallographic structure on the surface or inside of the material. During the heating and cooling process of structural welded steel pipe workpiece, due to the inconsistency of cooling speed and time between the surface and the core the temperature difference will be formed, which will lead to uneven volume expansion and contraction and produce stress, that is, thermal stress.

Stages needing attention in the production and manufacture of alloy tubesThe two ends of the steel produced by the seamless pipe manufacturer shall be cut into right angles, and the burrs on the surface shall be removed, which is the raw material used by the seamless pipe manufacturer. The embryo prototube embryo needs to be cut by a cutting machine to form an embryo material with a length of about one meter, which is sent to the furnace for heating through the conveyor belt. The billet is sent to the furnace. After internal heating, the temperature is about degrees, and the fuel used is often ethyne. Temperature control in the furnace is a very key factor.Determined by the shape, the section modulus, moment of inertia and corresponding strength of I-beam are obviously better than those of ordinary I-beam with the same single weight. When used in metal structures with different requirements, it shows its superior performance in bearing bending moment pressure load and eccentric load. Compared with ordinary I-beam, it can greatly improve the bearing capacity and save metal by % ~ %.Click to view,After isothermal quenching treatment, the modified LNs steel of case hardening steel also has the surface compressive stress characteristics obtained by heat treatment.The 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 ~, expressed as No. ~ No., and the inclination of inner wall of leg is : The pass system of rolled I-beam includes direct pass system, I-beam can also adopt special rolling method.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, the chemical raw material transmission pipeline has a wide indoor space.

Requirements of alloy tubes for low and medium pressure boilersExcellent service,X-ray or ultrasonic testing shall be carried out for repair welding of alloy pipe, dead end welding of strip steel and circumferential seam. For the spiral welding of steel for the transportation of flammable general liquids,ChalcisHow much is a 12cm I-beam per meter, yibai%sx ray or ultrasonic testing shall be carried out. For the spiral welding of alloy pipes for the transportation of water, wastewater gas, heating steam and other general liquids, X-ray or ultrasonic testing sampling inspection (%) shall be carried out. Stair step plate (stair step plate) is a kind of stair used for platform with steel bar mesh. According to the installation method, but it is not easy to disassemble, Thickened side plates are required on both sides of the bolted tread plate,ChalcisHow much is a hoop bender, and holes are drilled on the side plates.Alloy pipes can be used for heating (cooling) projects.Chalcis,I-beam is widely usedC-section steel has uniform zinc layer, smooth surface, strong adhesion, no zinc scar, no zinc leakage and high dimensional accuracy. All surfaces are wrapped by zinc layer, and the zinc content on the surface is usually -g /? It has long service life,ChalcisQ345 thick wall seamless pipe, corrosion resistance and durability. It is a kind of stronger protection. Cold extrusion. This kind of processing method is more purposeful. Before the preparation of steel processing and extrusion molding, when the extrusion molding is used for mm diameter pipe fittings, the investment of machinery and equipment is less, so the raw material consumption is also very small, and the technology is relatively perfect. Once the tube size is increased the cold extrusion method must have large cargo capacity and high-power machinery and equipment. Therefore, the automatic control system will be upgraded.