The working conditions required for the mandrel vibrating pipe making machine:

　　1. Abrasion resistance

　　When the billet has plastic deformation in the mandrel vibrating tube manufacturer, it flows and slides along the surface of the cavity, resulting in severe friction between the cavity surface and the billet, causing the mold to fail due to wear. Therefore, the wear resistance of the material is one of the basic and important properties of the mold.

　　Hardness is the main factor affecting wear resistance. Generally speaking, the higher the hardness of the mold parts, the smaller the wear and the better the wear resistance. In addition, wear resistance is also related to the type, quantity, shape, size and distribution of carbides.

　　2. Strong toughness

　　Most of the working conditions of the mandrel vibrating pipe making machine are very poor, and some often bear large impact loads, resulting in brittle fracture. The mold should have high strength and toughness to prevent the mold parts from breaking suddenly during the working process. The toughness of the mold mainly depends on the carbon content, particle size and organizational state of the material.

　　3. Fatigue fracture performance.

　　During the working process of the mandrel vibrating tube mold, under the long-term action of cyclic stress, it will often lead to fatigue fracture. Its forms are multi-impact fatigue fracture, tensile fatigue fracture, contact fatigue fracture and bending fatigue fracture. The fatigue fracture performance of the mold mainly depends on the strength, toughness, hardness and content of the material.

　　4. High temperature performance.

　　When the working temperature of the mold is high, the hardness and strength will be reduced, resulting in early wear or plastic deformation and failure of the mold. Therefore, the mold material should have high tempering stability to ensure that the mold has high hardness and strength at working temperature.

　　Mandrel vibration tube making machine generally adopts forging, cutting, heat treatment and other processes. In order to ensure the manufacturing quality of the mold and reduce the production cost, the material should have good forgeability, cuttability, hardenability, hardenability and grindability; oxidation, decarburization sensitivity and quenching deformation cracking tendency are small.