Corrugated roller machining method

Abstract

The invention discloses a corrugated roller machining method. The corrugated roller machining method includes the following specific steps that raw materials are weighed by the weight part, a roller body of a corrugated roller is made of a 48 CrMo material in a hardening and tempering manner, shaft head welding and outer circle rough machining are conducted, the raw materials are machined into powder and then are put into a stirring machine to be evenly stirred, and a coating is obtained; the coating is evenly sprayed to the surface of the cleaned corrugated roller to be machined through a spray gun, and compound treatment and subzero treatment are conducted after the coating is dried; and the surface of the corrugated roller obtained after thermal treatment is completed is polished, and the tooth surface is plated with hard chrome or sprayed with a tungsten cobalt alloy. The surface of the corrugated roller machined through the corrugated roller machining method is high in surface hardness and reasonable in foundation hardness and has both the hardness and toughness, secondary mounting and grinding are not needed, the machining cycle is shortened, the service life is long, and the compound treatment and subzero treatment are adopted, so that the tempering resistance of the corrugated roller is improved greatly, grains obtained after subzero treatment is conducted are refined remarkably, the organization is more even, and the size is more stable.

Description

technical field [0001] The invention relates to the technical field of processing corrugated rolls, in particular to a processing method for corrugated rolls. Background technique [0002] Corrugating rollers are the core components of corrugated box production and are also vulnerable parts. Their service life directly affects the production costs and benefits of carton companies, and is the largest and most important equipment consumption expense for each carton company. Conventional corrugated roller processing technology is: the roller body of the corrugated roller is selected from 48CrMo material for quenching and tempering, the welding shaft head and the outer circle are roughly machined, the teeth are rough ground, and the teeth are tempered at low temperature after intermediate frequency quenching. The hardness of the tooth surface is about HRC53, and the teeth are finely ground. Surface plated with hard chrome or sprayed tungsten-cobalt alloy. The process is relativ...

AI Technical Summary

Problems solved by technology

The process is relatively mature, the operation is relatively simple, and the quenching penetration layer is deep; however, the workload of gear grinding increases, and it needs to be installed twice before and after the grinding; if the hardness of the tooth surface is too high for intermediate frequency quenching, it is prone to tooth surface cracks and tooth loss. , if the hardness of the tooth surface is too low, the wear resistance will be poor and the service life will be shortened, and the intermediate frequency quenching will cause the internal stress of the tile roller to be large and easy to deform

Re-repair can only be done by hard chrome plating or spraying tungsten-cobalt alloy after fine grinding, the hardness of the tooth surface will be reduced, and the service life will be greatly shortened. In this way, it can only be repaired once or twice; Occurrence of warped wing teeth and tooth drop phenomenon will make the tile roller useless