Steel pipe knowledge: 45 seamless steel pipe

No. 45 seamless steel tubes are made of perforated steel tubes or solid billets and then made by hot rolling, cold rolling or cold drawing. 45 seamless steel tubes are a kind of material in steel and belong to high quality carbon structural steel. A large number of mold production companies will use it for mold steel use. 45 seamless steel pipe has an important position in China's steel pipe industry. According to incomplete statistics, there are approximately 240 seamless steel pipe production enterprises in China, with about 250 sets of seamless steel pipe units and an annual production capacity of approximately 4.5 million tons. From the point of view, <φ76, accounting for 35%, <φ159-650, accounting for 25%. From the perspective of varieties, general-purpose pipes are 1.9 million tons, accounting for 54%; petroleum pipes are 760,000 tons, accounting for 5.7%; hydraulic props and precision pipes are 150,000 tons, accounting for 4.3%; stainless pipes, bearing pipes, and automobile pipes total 50,000 Ton, accounting for 1.4%.
The raw material for rolling the seamless tube is a round tube blank. The round tube blank is cut into a length of about 1 meter through a cutting machine, and is sent to a furnace for heating by a conveyor belt. The billet is heated in a furnace and the temperature is approximately 1200°C. The fuel is hydrogen or acetylene. Furnace temperature control is a key issue. After the tube blanks are released, they are put through the pressure puncher. The most common punching machine is a conical roller puncher. This puncher has high production efficiency, good product quality, large perforation diameter, and can wear a variety of steel types. After piercing, the round billet is successively rolled, rolled or extruded by three rolls. After squeezing, take off the sizing. The sizing machine drills through the cone at a high speed into the steel die to form a steel pipe. The inner diameter of the steel pipe is determined by the outer diameter length of the sizing machine drill. After the steel pipe is sizing, it enters the cooling tower and is cooled by spraying water. After the steel pipe is cooled, it must be straightened. After straightening the steel pipe, it is sent to the metal detector (or hydraulic pressure test) by the conveyor belt for internal inspection. If there are cracks inside the pipe, air bubbles and other problems will be detected. After the quality inspection of steel pipes, strict manual selection is also required. After the quality inspection of the steel pipe, the paint is sprayed with the serial number, specifications and production lot number. And lifted into the warehouse by a crane.
Specification: The specification of seamless steel pipe is expressed in outside diameter * wall thickness mm. φ:756MM; wall thickness: less than 100MM

Ultrasonic Level Sensor

The ultrasonic level sensor integrates non-contact switch, controller and transmitter into one, suitable for small storage tanks. Ultrasonic liquid level sensor flexible design can be used in the integrated system or a substitute float switch, electrical conductivity and static pressure type sensor, and also suitable for the fluid flow control and chemical feed system of integrated application of ultrasonic liquid level sensor is widely used in all kinds of atmospheric storage tank, tank, small cans and small container, the pump lift stations, waste water storage tank, etc.

Ultrasonic Level Sensor,Ultrasonic Fuel Level Sensor,Ultrasonic Liquid Level Sensor,Ultrasonic Water Tank Level Sensor

Xi'an Gavin Electronic Technology Co., Ltd , https://www.gamicos-meas.com