2024-12-14
(1) The choice of raw materials
The chopper knife is usually used by CR12MOV, W6MO5CR4V2, W18CR4VSKH, M2 and other types of steel, the best quality of the general choice of Japanese steel SKD11, this steel processing and production steel is not only wear -resistant, but it is also not easy to destroy the knife, the chopping effect is also good. If it is used to grind rubber, fibers, paper and other waste materials, as a rule, 9CRSI alloy of instrumental steel is used, this material became processed and produced by the chopper not only very high hardness, and the fragility of relatively large, wear resistance is also good. In short, the choice of raw materials, in accordance with the type of chopper, to determine.
(2) Harvesting and forging
In accordance with the drawings of the grinder blade, the processing steel steel, as a rule, use the cutting machine for cutting, not only accuracy accuracy, and the edge is more smooth, later good processing. Subsequently, the harvesting of material for forging, the forging process should be the harvesting of the material for flaw detector and inspection, found cracks or unskilled harvesting material for refusal, unskilled workpiece for processing, should not continue the process.
(3) vacation
Forged workpieces are hardened, so the initial heat treatment, as a rule, does not differ in high temperature, the target goal is mainly to turn the workpieces into dry.
(4) Primary processing
To quench the blanks of the grinder blades for preliminary processing, forging workpieces, the removal of surface contaminants, in order to try to save the workpieces with flat so as not to increase the working load at later stages, the initial processing of workpieces for heat treatment to prepare.
(5) heat treatment
The heat treatment of blanks of the grinder blades that were primed, the main goal is to improve the mechanical properties of the chopper blade, which heats up at high temperature, and then quickly cooles, so that the steel material becomes martensitic, the process of heat treatment, take into account the amount of steel deformation, control the deformation of the material in order to protect the quality of the blades.
(6) Grinding the plane
The already processed chopper blades for grinding the plane, grinding the plane mainly for removing surface pollution, the process of grinding the plane, as far as possible to put 0.3 mm margins, can reduce the working load of thin magic. The ground grinding plane is processed on a grinding machine, the surface should be guaranteed to be polished in front of a sharp wire.
(7) Cutting wire
The wire cutting process should not occur too quickly, a plane perpendicular to the internal hole for cutting wire should be provided, the processing should be carried out in accordance with the dimensions indicated in the drawings so as not to cause use in the future that affects the installation of equipment.
(8) Thin grinding
Subtle grinding is the process to the end of the technology for processing the grinder blade, mainly on the blade of the polishing and processing grinder, and then the test for hardness, testing passed until the next line, and then packaging.
The above process is given and the introduction of the production processing process of the grinder blade, each process directly affects the quality and service life of the grinder blade, so follow the appropriate processing standards and precautions.
