The Research Of Track Shoe’s Deformation Control In Continuous Heat Treatment Production Line

Infrastructure construction can not be separated from construction machinery. Aswearing parts in engineering vehicles, the demand of crawler board is growing day by day.The working environment of crawler boards is very complex. Not only need them to bearthe impact of gravel, but also need to bear composite stress of pull and squeeze in the-40℃~45℃in their practical work. At certain state, they even should bear the acidic andalkaline corrosion. So it requires that they have some abilities of anti-fatigue, wear resistanceand good mechanical properties. Due to the track shoe is assembled by some parts such astrack plates, track links, pins and pin sets; this requires that the track shoe has a good flatness.At present, most of the track shoe suppliers have been able to provide excellent mechanicalproperties of the plate, but deformation generated during quenching is still a difficult problemto be solved.In this paper, W190B track shoe will be researched as a typical object. According to thecharacteristics of sheet metal parts, spray quenching will be selected as quenching process.Some experiments are made on the spray quenching machine in the continuous heat treatmentproduction line. Adjust the upper and lower spray hole pressure values so as to achieve thepurpose of deformation controlling. And we can obtain the curve that crawler surfacedeformation changing with the water pressure by fitting the experimental data。At last,because of some processes have been obtained results; we can do some numerical simulationbased on them by Deform-HT. By comparison of simulation and experimental results, ensurethe numerical model is correct, and then use it to forecast the deformation of new quenchingprocess.