The shaft wear on-line repairing of 950 rolling mill universal joint

950 rolling mill of universal joint shaft bearing repair on 2020 - bit wear online 09 - 10 transmission parts wear is common equipment production enterprise, and the number is larger, damage frequently, including all kinds of shaft, roller, reducer, motor, pump, such as bearing, bearing, slotting and thread parts, repair welding of the traditional machining method is easy to cause material damage, deformation or fracture cause parts, has great limitations; Brush plating and spraying again many machining methods need outsourcing, not only repair cycle is long, the cost is high, and because of repair materials or metal materials, can not fundamentally solve the causes of the wear and tear, Metal impact resistant ability and poor rolled back) ； Many parts only to scrap replacement, greatly increased the cost of production and inventory of spare parts, make the enterprise resources was idle and waste. Application of polymer composite materials online repair is one of currently widely used bearing wear repair technology, material has strong adhesion, excellent compressive strength, abrasion resistance and corrosion resistance, such as comprehensive performance, blessed are the representative of the blue series 2211 f. F the blue polymer materials the relatively small size of the transmission parts wear conditions can live free disassembly repair, avoid mechanical processing, thermal stress and no repair welding heat affected, repair the thickness is not restricted. In addition, the comprehensive performance of polymer composite materials have and can at any time the superiority of mechanical processing, not only can completely satisfy the use requirement and the precision of after repair, can also reduce the equipment under the impact of vibration in the operation, to extend parts ( Including bearing) The service life. At present, the world in blue technology has been in the national enterprises are widely used, for transmission parts wear, accumulated the rich experience at the site, according to the site situation take different repair process: the mold repair, and parts repair, machine repair, and other process and the corresponding relationship method. In most case, it can not remove the site equipment repair, especially for papermaking enterprises drying cylinder bearing wear, cement enterprises, rolling machine, crusher, and so on axial fan wear, building ceramic enterprise of ball mill diameter of axle wear the wear and tear of these large transmission parts has accumulated rich experience in the field repair, for enterprises to save valuable production time. Mill universal joint shaft cooperation case f the blue with a certain iron and steel group company cooperation for many years, in axial wear, rubber conveyor belt repair, speed reducer leakage oil of governance, fouling cleaning equipment and so forth have carried out fruitful cooperation. F the blue technical engineers to 950 rolling machine group co. , LTD. Hot rolling factory direct repair universal joint shaft bearing wear. The diameter of axle shaft 630 mm, width 340 mm, uneven wear, the local has a deep pit, wear an aerage of about 0. 2 mm, bearings for split bearings, supporting power of 3500 kw, the axis of intermittent operation, the highest speed 200 r/min. Because of the hot rolling factory the downtime is only 3 days, maintenance task is very nervous, after fully discuss the repair scheme, a direct assembly was adopted for bearing a repair. In the blue under the guidance of technical engineers, the repair 10 hours, this is unmatched by traditional repair method. F the blue technology has the characteristics of easy operation, fast and effective, under normal circumstances can save valuable access to the enterprises and the production time, comprehensive performance is very high. Guide process is as follows: ( F the blue)