A torsion bar and its processing method

Abstract

The invention provides a torsion rod and a machining technology method thereof. The torsion rod comprises a vibration tray, a connecting rod and an end plate, all of which are integrally arranged. A preparing method comprises the steps that after the forging temperature of a blank is increased to a certain temperature range through heating, forging is conducted, then, isothermal annealing is conducted, flaw detection is conducted, the heat treatment technology is conducted so as to refine a steel composition microscopic structure, secondary flaw detection is conducted again, and then the torsion rod is manufactured through rough and finish machining. The heat treatment technology comprises one-time normalizing, one-time quenching and two-time tempering. In the torsion rod machining technology, in the process that normalizing, quenching and secondary tempering are sequentially conducted, the steel microstructure austenitizing effect is sufficiently achieved, the various properties of the torsion rod serving as a center column of a whole water treatment filter device are greatly improved, and the long-term stable running work condition requirement of the whole water treatment equipment is met.

Description

technical field [0001] The invention relates to a bar product, in particular to a torsion bar used in water treatment equipment and a processing method thereof. Background technique [0002] Human activities will cause a large amount of industrial, agricultural and domestic waste to be discharged into the water, polluting the water body. More than 500 billion cubic meters of sewage are discharged into rivers, lakes and seas in the world every year, polluting hundreds of millions of cubic meters of water. Fresh water, increasing water pollution, has posed a major threat to human health and has become a major obstacle to sustainable economic and social development. At present, various forms of water treatment equipment are playing an important role in the purification of river water and sewage. However, general water purification equipment requires that the turbidity of the influent water is not high. For some water with high turbidity, it is often difficult to meet the drinki...

AI Technical Summary

Problems solved by technology

[0002] Human activities will cause a large amount of industrial, agricultural and domestic waste to be discharged into the water, polluting the water body. More than 500 billion cubic meters of sewage are discharged into rivers, lakes and seas in the world every year, polluting hundreds of millions of cubic meters of water. Fresh water, increasing water pollution, has posed a major threat to human health and has become a major obstacle to sustainable economic and social development. At present, various forms of water treatment equipment are playing an important role in the purification of river water and sewage. However, the general water purification equipment requires that the influent turbidity is not high. For some water with high turbidity, it is often difficult to reach the drinking water standard after general treatment.

Images