| Rolling is an important basis for the mechanical parts, its structure is simple, but the technical requirements is very high. Data show that pipe material and Bar In addition to the direct turning, the rest are using heat - Forging - grind expansion - cooling molding production process.Bearing collar austenitic high-temperature single-phase area forging grinding, forging process, after the air cold high carbon chromium bearing steel forging higher temperature and cooling end at a slower speed, the spread of carbon atoms, plus hot deformation time that second carbide, produce reticular carbide ahead along the austenitic grain separation, cooling of the microstructure has serious reticular carbide and thick flake pearlite microstructure, serious deterioration of the mechanical properties of bearing collar.Through the analysis, bearing collar forgings carbide mesh with cooling speed and level is closely related to the time. Because of bearing collar carbide mesh to cut through the specimen, polishing, microscopic examination, current production factory relies mainly on the sampling method, a batch of watches/random product model, 2 if an out-of-tolerance, whole batch/divisions of all products waste treatment. Due to the control of the cooling grinding forging technology in production process, cannot achieve production process quality control parts, strictly control the reticular level, each year because of carbide bearing collar forgings network carbide than the economic consequences of the level. Production enterprises need to achieve control of cold and control equipment, but present market cooling device. No such Research analysis of intelligent control technology, combined with the requirements of cold production enterprises lack in bearing collar forging process to run after cooling control the cooling speed, cooldown device, bearing collar intelligent control design, craft device cold through cooperation with manufacturer, complete bearing collar parts after grinding intelligent control cold forging equipment, complete the design and calculation of engineering design information to assist factory developed with control temperature and cooling time, improve product quality forgings bearing collar functions of automatic controlling cold device.After enterprise application inspection, can achieve control net carbide < 250 level requirements.Automatic control cold device is automatic control temperature and cooling cooling time, through the technology of production quality assurance parts, can improve the bearing collar of blank, eliminate the microstructure of carbon mesh quality is cancelled, bulky grain processing cost, improve mechanical properties and anti-fatigue strength, improve the quality of domestic bearing production and improve the economic efficiency of enterprises. Therefore, the research results on innovative application prospect in the market, has good economic benefit. |
