Sprue, hot water also, the placement of the cutting device, such as unwanted products eondeung structure and a stationary cutting tool and moving the coating method and the fixed and moving the cutting device cutting tool

摘要

An apparatus for breaking casting products, comprising: a fixed cutter device (4) having a plurality of projection shaped mating cutters in zig-zag fashion on a flat plane thereof, and ribs of narrow width provided between the mating cutters; and a rocking cutter device (5) having a plurality of projection shaped rocking cutters in zig-zag fashion on a flat plane thereof, and ribs provided between the rocking cutters; wherein a main body flat plane of the fixed cutter device, a main body flat plane of the rocking cutter device, and circumferential surfaces of the mating cutters and the rocking cutters include at least a three-layered overlaying; and top surfaces of the mating cutters and the rocking cutters include at least a four-layered overlaying; wherein the circumferential surfaces of the mating cutters and the rocking cutters include a welding coating running in a direction toward a bottom of the mating cutters and the rocking cutters, and striking by a hammer or the like is perfomed to provide peening effect to the welding coating.