The heat during the forging of locomotive support seat must be strictly controlled

No matter what industry attaches great importance to the quality of products, in order to better improve the quality of products, in the processing of relevant parts, will attach great importance to the skills of production technology, while constantly improving the production technology to ensure the quality of products. Even the locomotive support seat forgings, can also pay more attention to the production and processing, not only the production process needs to be improved, the details of the production process should also be well controlled, let's see how to ensure the production quality of the locomotive support seat forgings.

Now, in order to ensure better quality performance of die forging, in the forging production, such as residual inclusions or the presence of similar ingot, will cause forging cracks and scratch the surface, even if there are only raw materials and product cracks, forging defects will appear, therefore, raw materials must be tested in the production of forging.

If the heating rate is too fast, due to the stress and temperature stress cracking, leads to the central part of the difference in temperature between the inner and outer, when the heating temperature is too high a longer holding time causes slight overheating, to produce a coarse crystals are bright crystal fracture, fracture as a result, heat must control specifications, in order to improve the grain refinement to improve, with this kind of organization on the mechanical properties of the steel, Annealing is necessary to produce complete recrystallization.

Now even more introduction of various modified implementation example, application of different forms of blank thermal mechanical condition, will happen in different organizational characteristics and physical field evolution, so different from forging process, will change the quality, so the forging and forging quality of matrix, the matrix further related design, the design of the forging and tolerance to choose the reality, Each link of the forging production of little effects on the quality of the die forgings, the high temperature tensile test, numerical simulation of quenching acquired during the performance of the parameters, as well as the mechanical model of infrastructure software components limited aviation aluminum box girder forging, affect the cooling steel and the influence of the shape of the distribution of the residual tension, through the experimental results show that forging residual stress of the cooling air beam structure, Should be concentrated in the web and rib junction.

TAB inside and outside pressure, the distribution of tempering temperature has a significant effect on residual stress and cooling temperature can effectively reduce the residual voltage, for die forgings on the surface of the defect reason and technical measures, the main causes of cracks on the surface of plate flange forging, to ensure that the mold temperature is higher than the required value, strictly control the quality of round cakes of stamping when obtain and use of forging equipment parts, The quality requirements of hot forging process specifications are obtained.