Zirconium tubes
Zirconium tubes are mainly used for the reactor zirconium material (pipe, plate, bar, special-shaped material). The design capacity of the enterprise is 60 tons per year, about 40 tons, 60 tons of bar and profiled material, and the total 100 tons, which can be used for the production of nuclear products according to international and national standards. Products have been identified by domestic experts and users, and the establishment of a complete ISO9002 and nuclear HAF400 quality system.
Leading products: nuclear and civil zirconium alloy material, mainly in the case of shell pipe and bar, open billet mill and rolling mill can use non nuclear production line to produce other rare or non-ferrous metal high precision tube bar.
Zirconium alloys for nuclear reactors for various tubes, rods, and control rods.
The company established a complete zirconium alloy research, development, production system, product cost is low. In addition to the northwest zirconium pipe Co., Ltd. rely on their own strong technical force from South Africa to buy the French Framatome's design and construction of zirconium tube production line, its price is only half of the price of the existing equipment, through the demolition of their own, their installation and commissioning, and combined with international zirconium production technology development status, and increase the continuous vacuum annealing furnace, automatic fine whole production line detection and computer network in CIMS production line management. Not only the technology to reach the international advanced level, and production line investment is only 1/4 of foreign countries, so that the cost of the product is greatly reduced, and therefore has a strong international market competitiveness, in November 2000, northwest zirconium pipe Co., Ltd., the international nuclear experts, after several national manufacturers and the company signed a supply contract and agency letter of intent.
High precision rolling production line
The zirconium tube production in the widespread use of Mannesmann production of high precision ring groove leather high-speed ERGs mill, the rolling production line including KPW75, KPW50, KPW25, KPW18 four kinds of high precision ring rolling machine, pipe specifications by phi 80 or phi 63.5mm of extrusion billet began to nuclear power with a variety of cladding tubes. And for the high precision of the mill workers die manufacturing, especially the processing of roll pass and core head equipped with GG52 five axis NC grinder, Fortuna four axis CNC cylindrical grinder and MAHO-600E three coordinate numerical control milling machine and other 17 sets of high precision processing equipment, the package shell pipe finishing degree reached + 0.01 mm below.
Large continuous vacuum annealing furnace
Computer controlled large continuous vacuum annealing furnace (72 m). In order to improve the precision of temperature control, heating chamber is divided into 14 districts, using computer temperature control, is domestic only high precision large zirconium vacuum annealing furnace.
Automatic control of finished products
Zirconium is a very active metal, its surface is extremely easy to be contaminated, the impact of the largest iodine stress corrosion, therefore, in addition to the finished zirconium alloy tube surface in the process of blasting or flow pickling, but also external surface mechanical polishing. The finished products are carried out in a series of operations such as polishing, non-destructive testing, marking, sorting, cutting, cleaning, appearance inspection and packing. All of the processes are automatic control, so as to avoid man-made pollution and ensure the cleanliness of the pipe.
