On Aug. 7, a 2 meters long, width 1. 245 m, 1 high. 1 meters, 429 meters, diameter, weighing about 20 tons of large overweight in huaxia plug Industrial Valves valve began to manufacture, the plug valve is the biggest most of huaxia valve since the establishment of research and development manufacturing valve. So far, the production goes well, have finished machining and welding work. It is understood that the blocking valve is Inner Mongolia haidai sea power generation co. , LTD. ( Hereinafter referred to as the haidai sea power) A period of 2 x 600 mw unit no. 2 boiler reheater cold period of hydraulic valve renovation project. Plug valve series products are the traditional advantage of huaxia valve products, enjoying high reputation in the domestic electric power industry. Although there is no large overweight plug valve research and development manufacturing precedent, but many of huaxia valve with performance and hard work, finally obtained the millions of dollars worth of plug valve order. It is understood that the blocking valve project from contract to delivery time is less than four months, in addition to product design, raw materials procurement and other preparatory work, only 40 days, the time for production is pressed for time, a difficult task. Large, overweight plug Industrial Valves, make the company of lifting equipment, heat treatment equipment is worthless, brought directly to the production of each link. Therefore, huaxia valve attaches great importance to this work, to involve more than a dozen processing link are formulated the detailed work plan and the related work elaboration to each and every day, every day by two management personnel in the field monitoring and issue the monitoring report every day, informed master manufacturing progress and quality. Technology ( technology) , technology, production of each link work together to overcome difficulties, to technological innovation, in a week time to complete the body in raw. Welding of the most important step, in particular, due to space constraints, can only use manual welding, in order to strive for a one-time qualified, reduce the waste of time and greatly inconvenience caused by the rework, the company by the welding technician on-site support, guidance, valve manufacturing sent experienced, high level of technology, tany, zou road people Wei Min and cattle Xia, 4 people were divided into two classes, 12 hours rotation, not stall welding for 4 days 4 nights in a row, on August 22, successfully completed the valve welding processing work in the morning. According to valve manufacturing department minister gui-hua wang, the block valve of 9. 860 tons, mount the valve seat, valve cover, disc, support plate, pressure after the roof will be the total weight of 20 tons, is a real sense of 'monster'. Complete machining and welding is only part of the job. Thereafter, will also to car of blocking valve welding root, flaw detection, the overall heat treatment, inspection, welding seat, body again finish machining, welding, hydraulic end cover, seal strength test, remove the end cover assembly, processing groove, paint, such as the plug Industrial Valves is expected on September 20.
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