A matrix steel pre-treatment device consisting of a heat treatment device (71) used to heat the matrix steel piece to be processed to 250 to 350 degrees and to emit the matrix steel piece after heat treatment, the roller conveyor belt (72) being The initial opening of the heat treatment device (71) is connected and used to drive the matrix steel workpiece after heat treatment to reach the cutting machine in the further processing process, with the roller conveyor belt (72) a role (73),a bearing (74) and a frame (75), with the ceramic heater evenly positioned on the inner wall of the roll, with one end of the roll (73) connected to an end of the bearing (74), with the other end of the bearing (74) connected to an engine that drives the roll to rotate within the frame (75), where the other end of the roll (73) is connected to an electrode connection cylinder (76) comprising two metal electrode rings inside and outside, with the inner metal electrode ring protruding from the outer metal electrode ring,where the two metal electrode rings are electrically connected to the two electrodes of the ceramic heater, with a first contact piece (81) and a second contact piece (82),which are in stable electrical contact with the two metal electrode rings, each located within the frame (75), the first contact piece and the second contact piece being separated by an insulating material, the first contact piece and the second contact piece being the two electrodes of the ceramic heater through the provide stable power to both metal electrode rings, with the ceramic heater providing a constant temperature of the first temperature range to the outer wall of the roll after power supply,so that, after heat treatment, the matrix steel workpiece is slowly welded to the first temperature range on the roller conveyor belt (72) and this temperature is maintained.A media nozzle (77) is positioned far from the heat treatment device (71) above the roller conveyor belt (72) and is used for spraying liquid medium onto the surface of the matrix steel piece flown in the first temperature range. The liquid medium is an oily medium that is heated to a first temperature range. Metal powder is also mixed in the oily medium. The metal powder includes an iron powder, or rhenium powder, or titanium powder, or tungsten powder, or manganese powder, or chromium powder or magnesium powder in nano-size or a mixture of iron powder, rhenium powder, titanium powder, tungsten powder,Manganese powder, chromium powder or magnesium powder in nano-size.A rolling mill (78) is located at the rear end of the media nozzle (77) in relation to the direction of motion of the matrix steelworks, including a horizontal rolling mill and a vertical rolling mill, which are arranged alternately. The distance between the rollers in the mill is between 80% and 90% the size of the matrix steel workpiece.
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