The invention relates to the technical field of wood-working
mechanical equipment manufacturing, and discloses a novel preparation method of a pressing wheel for large-scale automatic wood-working machinery, a 45 steel
round bar material is adopted, the material is subjected to primary
machining after blanking to obtain a primary workpiece, and the obtained primary workpiece is put into an
atmosphere protection heat treatment furnace to be subjected to pre-heat treatment; a primary workpiece subjected to heat treatment in advance is machined and finely machined through a high-precision
machine tool, an inner hole needs to be enlarged in advance, allowance is reserved in the inner hole of the primary workpiece, a secondary workpiece is obtained after
machining, then the secondary workpiece directly enters a gas co-
permeation furnace, the pressing wheel is obtained
after treatment, and the pressing wheel is discharged out of the furnace and cooled in air. And putting the pressing wheel into a sealed furnace, introducing
nitrogen,
ammonia gas and a beautifying agent, heating, and cooling in air
after treatment. The production process is free of emission of three wastes,
environmentally friendly, easy to operate and low in cost, and the surface
hardness,
wear resistance and
corrosion resistance are far higher than those of technical index requirements.