Seamless Pipe in the use of how to maintain the most scientific
In fact, many of the lives are now inseparable from the existence of Seamless Pipe, Seamless Pipe has a very significant feature is in the production process is not required for any cutting and welding. Because only this will ensure that in the transmission of gas and liquid when the gas will not appear to leak the situation, so if there is welding or cutting the situation, then this Seamless Pipe for transportation is very dangerous.
But what things have to be used to maintain the long-term, like the home of the refrigerator, TV and microwave ovens and the like, in fact, these appliances is the need for maintenance will be used for a long time. In fact, not just home appliances, such as Seamless Pipe is also the need for maintenance, especially steel synthesis, then it is easier to rust, resulting in the use of Seamless Pipe as before, so no matter what long as long as the use of Aging state, so the need for maintenance of Seamless Pipe.
In fact, in order to prevent the Seamless Pipe rust, we must first ensure that the surface of the Seamless Pipe and the environment is clean, or it is easy to be corroded, resulting in chemical reactions. Rust, we can also use the method of acid to rust, generally many workers are using the principle of chemistry and the use of electrolysis to rust. But if the chemical reaction to remove the rust, then the workers before cleaning, the first to wear protective equipment, to avoid the body affected by chemical damage. But now many places do not agree with the chemical acid to clean the Seamless Pipe, because although the chemical pickling to rust effect is very good, but the chemical acid will also affect the environment, and even affect the soil quality.
In order to understand the cement injection density of concrete in seamless pipe and the cementation quality of concrete and steel pipe wall, the construction quality of concrete arch rib concrete filled with concrete was analyzed by ultrasonic pulse method.
In the process of ultrasonic testing of seamless concrete, the influence of ultrasonic signal on the detection of the seamless pipe wall is the concern of the testing staff, and whether the ultrasonic pulse method can be used to detect the quality of concrete filled with steel pipe is the key. As long as the inside of the concrete filled with concrete is dense, and the concrete and the inner wall of the steel pipe are well cemented, the first wave of the received signal is the ultrasonic longitudinal wave propagating along the concrete-filled steel pipe, and the time of the half- Long, the first wave to the first wave after the first wave, therefore, the application of ultrasonic testing of concrete pipe quality is feasible and effective.
The ultrasonic acoustic path depends on the diameter of the test tube of the concrete in the Seamless Pipe, and the thickness of the two layers of the steel pipe wall which is in contact with the hair and the receiver is much smaller than the diameter of the seamless pipe concrete. Which is greater than the speed of sound of concrete, but the influence of "sound" detection is quite different from that of ordinary reinforced concrete when it is perpendicular to acoustic path. For the sake of convenience, the outer diameter of the pipe is taken as the actual propagation distance of the ultrasonic inspection.
The profiled seamless pipe is a general term for a seamless pipe other than a circular tube. According to the different shape and size of the steel pipe can be divided into different thickness of the special-shaped seamless pipe (code D), ranging from wall thickness special-shaped Seamless Pipe (code-named BD), variable diameter shaped Seamless Pipe (code-named BJ). Shaped seamless pipe is widely used in a variety of structural parts, tools and mechanical parts. Compared with the tube, shaped pipe generally have a larger moment of inertia and cross-section modulus, a greater bending and torsional ability, can greatly reduce the weight of the structure, saving steel.