What are different diameter pipe fittings, do you know?
Have you ever come into contact with them? It doesn’t matter if I don’t know, this article will give you a comprehensive interpretation, full of dry goods, remember to collect it, let’s explore it below!
When it comes to reducing pipe fittings, you may not know, but when it comes to reducing diameter, you may understand. You guessed it, reducing fittings are divided into concentric and eccentric fittings. This fitting is used for plumbing. When the flow rate of the fluid changes. He will have different results, which may not be clear to everyone. For example, when the traffic demand does not change much, increase or decrease; when the pump is connected to a flow meter (such as a flow meter, regulating valve) and matched with the joint of the flow meter, the inlet of the pump should prevent cavitation. At present, the commonly used forming processes include diameter reduction pressing, diameter expansion pressing or diameter reduction plus diameter expansion pressing, and stamping forming can also be used to reduce pipes of certain specifications. The pipe fittings manufacturer will show you today. Reduced diameter forming is to put the tube blank with the same diameter as the large end of the reducer tube into the forming mold, and then squeeze the tube blank in the axial direction so that the metal moves along the cavity to reduce the shape. According to the reduced size of the reducer, it can be divided into one-time compression molding or multiple compression molding. Bulging is to use a tube blank with a diameter smaller than the diameter of the large end of the reducer, and then use the inner mold to bulge the tube blank. By reducing the diameter, it is easy to reduce the diameter of a reducer with a larger diameter. Therefore, sometimes it is necessary to combine expansion and contraction according to the data and the needs of product molding. Sometimes according to the needs of materials and product molding, the methods of diameter expansion and diameter reduction are combined. In the process of shrinking or expanding deformation and pressing, cold pressing or hot pressing is determined according to different materials and shrinking conditions. Generally, cold pressing should be used as much as possible, but in the case of severe work hardening caused by multiple diameter reductions, or in the case of wall thicknesses such as , or alloy steel, hot pressing is more suitable for the production of reduced diameter pipes. In the process of diameter reduction and diameter expansion, hot pressing or cold pressing should be selected according to different data and required diameter reduction. But in general, cold pressing is preferable, while hot pressing is still suitable for severe work hardening and thicker wall thickness caused by multiple reductions. The punching method is to design the shape of the punch for punching with reference to the internal and external dimensions of the reducer and punch the steel plate after stretching and punching with the punch. It is also one of the most commonly used methods now, widely used in production and life, and has a wide range of uses!
Pipe fittings with different diameters are usually formed by reducing diameter plus expanding pressure, expanding pressure or reducing diameter pressing, and can also be formed by stamping. The stamping process is primarily used to reduce pipe to part sizes. The shape of the punching die can be designed according to the size of the inner surface of the reducing pipe, and the blanked steel plate is punched and stretched with the die.
The diameter expansion process of the reducing pipe fittings is mainly to solve the problem that the diameter of the reducing pipe fittings is too large to be formed through the reducing pipe fittings. The tube blank that is smaller than the diameter of the large end of the reducing pipe fitting is used to expand the diameter along the inner diameter through the tube blank with an inner mold.
The reducing forming of the reducing pipe fittings is to put the tube blank with the same diameter as the big end of the reducing tube fitting into the forming mold, and then squeeze the tube blank along the axial direction, so that the metal moves along the cavity and shrinks into shape. Due to the different sizes of the reducing head, shrink molding can also be divided into one-time compression molding or multiple compression molding.
Sometimes according to the needs of materials and product molding, the method of diameter enlargement and diameter reduction is used in combination. In the process of reduction or expansion deformation, cold pressing or hot pressing is determined according to different materials and diameter changes. Generally, cold pressing should be used as much as possible, but for severe work hardening caused by multiple diameter changes, thick wall thickness or alloy steel materials, hot pressing should be used to produce reducers.
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