304 stainless steel roller and machining method

Abstract

The invention provides a 304 stainless steel roller which comprises a roller body. A hollow cavity is formed inside the roller body, a roller shaft penetrates through the roller body in the axial direction, the roller further comprises a plug, the plug is fixedly connected with the inner wall of the roller body and the outer wall of the roller shat, and the plug is prepared from gray pig iron. Theinvention further provides a machining method of the 304 stainless steel roller. The machining method comprises the following steps that 1, the roller body is prepared; 2, a stainless steel shaft matched with the roller is prepared; 3, a step table is prepared; 4, a matched sealing plate is cut out; 5, the plug is prepared through casting; 6, the end is sealed by the sealing plate; 7, the sealingplate is welded to the roller body; 8, the end face is corrected; and 9, the outer edge of the roller body is polished, and the 304 stainless steel roller is formed. According to the 304 stainless steel roller and the machining method of the 304 stainless steel roller, combining force and toughness of the welded position of the 304 stainless steel roller are improved, a weld joint is prevented from stripping from the roller, therefore, the strength of the roller is improved, and the service life of the roller is prolonged.

Description

technical field [0001] The invention relates to the technical field of processing 304 stainless steel rolls, in particular to a 304 stainless steel roll and a processing method. Background technique [0002] The roll is a tool for plastically deforming the rolled material, and an important consumable part that determines the efficiency of the rolling mill and the quality of the rolled material. The roll is an important part of the rolling mill, and it uses the pressure generated by a pair or a group of rolls to roll and grind food. It is mainly subjected to dynamic and static loads, wear and temperature changes during rolling. [0003] The 304 stainless steel roll in the prior art, the roll body and the roll shaft are all 304 stainless steel materials, the roll body and the roll shaft are interference fit through the flange, and the roll shaft and the flange are welded. The rolls of the prior art have the following deficiencies: (1) There is a hollow structure between the ...

AI Technical Summary

Problems solved by technology

The rolls of the prior art have the following deficiencies: (1) There is a hollow structure between the flange and the roll body, and the walls at both ends of the roll body are thin, so the roll is prone to bending deformation when rolling food, and the deformation force is transmitted to the ends At the same time, due to the thin wall thickness and low strength at both ends of the roll body, the bending torque is likely to cause irreversible bending deformation at the end and damage the equipment; (2) only through the welding connection between the flange plate and the inner wall of the roll, The bonding force is small, and when the roll is bent and deformed during work, the weld seam has low toughness, and it is easy to cause tearing cracks or even peel off the roll, which will damage the equipment

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