Little goat35CrMo thick wall seamless pipeIt turns out that the industry’s water is so deep
Cross rolling pass system. This pass system refers to that the two open legs of the I-beam pass are not on the same side of the waist at the same time, and the waist has an included angle with the horizontal axis.d. All machines and equipment in a production line can connect with the software of the computer data collection system to complete the timely transmission of data information, and the performance parameters in the production process are monitored by the central control room.Little goat,Galvanized pipes are designed to maintain high enough corrosion resistance. Frame line crackSadao, The small length of repair welding is mm; The raw material shall not exceed mm after grinding by welding edge.Plan scheme : high carbon steel with carbon content exceeding .% and alloy pipe with chromium content not less than %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,Little goat022cr17ni12mo2 seamless 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.
After determining the reasonable pickling agent and polishing solution, it is very easy to carry out hot galvanizing for relevant alloy pipes. Use 'phosphating treatment' to degrease the pipes of electrolytic machine equipment, put them into the aqueous solution with zinc salt after pickling and passivation, put them into the cold-rolled steel plate in the direction corresponding to the pipes, and connect the switching power supply, If the current flows from the positive stage to the negative stage, a layer of zinc is deposited in the pipe.However, compared with plastics, these pipes, like other metals, remain stable and will not be affected by high temperature.I-beam is widely used in buildings or other metal structures.Total quality management,The specification of I-beam is expressed in cm of waist width. For example, the waist width of No. I-beam is cm. 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 ~ mm, expressed as No. ~ No., and the inclination of inner side wall of leg is : The pass system of rolled I-beam includes direct rolling pass system, cross rolling pass system and mixed pass system. In addition, I-beam can also adopt special rolling method.The delivery length of I-beam is divided into fixed length and double length, and the allowable difference is specified in the corresponding standards. The length selection range of domestic I-beam is divided into - - and - according to different specification numbers. The length selection range of imported I-beam is generally -.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,Little goat15CrMoG high pressure alloy pipe, wastewater, gas, heating steam and other general liquids, X-ray or ultrasonic testing sampling inspection (%) shall be carried out.
H-section steel belongs to high-efficiency and economic cutting profile (other cold-formed thin-wall section steel profiled steel plate, etc.). Due to the reasonable section shape, they can make the steel give more play to its performance and improve the cutting capacity. Different from ordinary I-type, the flange of H-section steel is widened, and the inner and outer surfaces are usually parallel, so it is convenient to connect with other components with high-strength bolts. Its size composition is reasonable, which is convenient for settingPromise and keep promise,Heating surface pipes, economizers, superheaters, reheaters, pipes for petrochemical industry,Little goatI-button, etc. for high-pressure boilers (working pressure is generally above MPa and working temperature is between ℃ ~ ℃) Divided by weld -- straight welded pipe and spiral welded pipe.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.Little goat,Ways to obtain surface compressive stress characteristics of alloy tubesAccording to the theory of steel structure, the I-beam flange should be stressed, that is, the I-beam should be standing rather than lying down.Introduction to product knowledge of alloy pipe: