Разработка и обоснование технологии и материала восстановления колес грузовых вагонов с учетом их напряженно–деформационного состояния

Аннотация

Subjects of research: process of the recovering the worn-out circle of the riding and ridge whole founder wheel freiht-car automatic much electrode smelting. Purpose of work: development of the motivation of the way of the reconstruction to surfaces of the riding whole founder wheel of the freiht-cars with provision for their tense- deformation conditions. Methods of research: mathematical, method of the numerical analysis, experimental studies tense-deformation conditions, metallographic research, measurement to hardness. The results obtained and their novelty: is studied regularity of the origin tense- deformation conditions, defining structure and characteristic of the material whole. For the first time designed methods of the study tense- deformation conditions at much electrode process smelting to surfaces of the riding travell. Installed that maximum temporary voltages, exceeding limit to toughness of the material travell, arc reached in surface layer at the temperature over 500°C. Reduce the danger of the forming the hot rifts by possible by reductions to heat power of the mode smelting. Practical value: designed and approved in Public supervision "Uzzhcldorrcmmash" Instruction on adjustment and usages much electrode installation for repair personnel ОАО "Yolrcftrans" GAZHK. "Uzbekistan temir yullari". Degree of embed and economic effectivity: result of the executed studies in welding laboratory TASHIIT automatic much electrode smelting were smelting experimental smelting freiht-cars in amount 10 pieces, four from which pass the experienced to run in under cars. Smelting travell is sent in UP "O'ZTEMIRYO'LMASHTA'MIR" for use in cars railroad yard GAZHK "Uzbekistan temir yullari". The expected effect from this will form 123, 89 mln.sum. Field of application: enterprises GAZHK "Uzbekistan temir yullari", connected with repair of the rolling stock. The Research institutes and rcscarch-and-production associations.