About casting oxygen lance nozzles
A. Good oxygen lances and its nozzles can not only give good metallurgical effect, high-yield metal and energy saving, but also include higher production craft, durability and deformation resistance.
Copper purity of casting nozzles is generally 99.85% with the character of high purity, excellent and thermal conductivity. It can be welded, soldered and brazed, with excellent welding and machining properties, corrosion resistance and cold tolerance.
B. Introduction of using environment
Oxygen converter steelmaking is carried out within more than 10 minutes for the oxygen and gas supply, and in this short time, the task of slagging, decarbonization, desulfuration, dephosphorization, impurity, gas-disposing and heating must be completed. The reaction in the blowing is a complex process. The working nozzles have to bear high-heated load. The temperature of the reaction zone in the converter pool is above 2000 degree Celsius, and the melting point of copper is 1083 degree Celsius. In order to increase durability and deformation resistance, and strengthen cooling conditions, nozzles take advantage of central hyperbaric cycle water way. The effect is obvious, and the working situation is more ideal.
C. Usage introduction of casting nozzles'structure and properties
Casting oxygen lance nozzles have adopted Laval nozzles structure, and can bring supersonic jet. The jet energy attenuates slowly and penetrates strongly. In the production process, casting oxygen lance nozzles are made of advanced and unique electrolytic copper casting craft. There are excellent production efficiency, detection system and safety factors in the process, and in the internal structure, the water-leading board is set. Cooling effect is excellent, and sites between nozzle holes are difficult to be etched, also the exit is stable, so nozzles'lives are enhanced.
Shandong Chongsheng Metallurgical Oxygen Lance Co., Ltd., as an enterprise specialized in researching and producing of metallurgical lances & nozzles, the headoffice lies in Weifang Hi-Tech Industry Development Zone, Shandong Province and branch company lies in Fangzi District, Weifang City.
We hold powerful scientific research strength, advanced equipments and complete methods of checkout. Based on the research superiority and perfect quality of products, our company holds the market share more than 80 percent in our country.
Regarding Science and technology is the first productive force as our guiding principle, we have assimilated a lot of advanced technology from home and abroad and established an advanced system of checkout, such as the oxygen jet flow laboratory, the water flow testing laboratory, the X-ray nondestructive tensile test of the weld and the scientific research establishment of the ultrasonic end surface inspection, etc.
Our chief products, of more than 100 specifications, are the nozzles and oxygen lances for converter and electronic arc furnace, the water-cooling cast copper parts such as damper and slag hole of blast furnace, electrode tip is used on electric arc furnace. The yearly capacity of pure copper can reach over 800 tons. Our products are provided to more than 130 internal steel plants, such as Baoshan ISG (full name: Iron and steel group), Wuhan ISG, Shoudu ISG, Handan ISG, etc. Our products have replaced the same products which imported from Japan, Germany, USA, France and Italy, they also have been exported with a large quantity to many foreign countries, such as India, New Zealand, Australia, Belgium, Turkey, etc.
Our new products and new technologies have stood the antecedent in the industry with abundant capital and powerful scientific research strength and established a substantial technology of leading in the biggest 335 coned-lance at home, the protecting technology of nozzle end surface and the vacuum pressure casting, assembling and forging nozzle, etc. At present we have got sixteen Practical National Pattern Products and won in succession The Prize of Shandong Excellence New Product, The 2ND Prize of Science Advance of Shandong Province, The 3rd Prize of Science Advance of Chinese Acadeny of Sciences, Ten Prize for Vital Scientific Achievement of Baoshan ISG. After being awarded The National, Provincial and Development Zone New Products and listed in The Torch Development Project of Shangdong Province between the year of 1994 and 1996. Our company has also won more honors, such as Shandong Provincial Advanced Enterprise, Shandong Provincial Excellent Enterprise, The Star Enterprise in Development Zone, "The Reasearch Center of Oxygen Lance and? Lance Nozzle of Shandong Province", "The Forward-looking Corporation of Science and Technology progress", "The National New Products in 2006"etc. We passed the confirmation of ISO9001 Quality System Certification in 1999. The brilliant development of our corporation can be expected. We have become the market leader in oxygen lance industry.
Quality first and serving for steel making is the developing principle of our corporation. We will serve our clients with the topping technology, the topping checkout, the topping products and the topping service. Key point of smelting excellent steel is oxygen lance. We warmly welcome all guests and tradesmen both at home and abroad to our company to inquire and visit.
