qizhen0926
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The world's largest tonnage chemical tanker
« on: Apr 26th, 2018, 2:56am » |
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Recently, by the Chinese industrial Chinese hudong zhonghua shipbuilding (group) co., LTD., built a famous shipping companies custom four largest tonnage in the world - 49000 - ton chemical Marine duplex stainless steel orders all flowers in taiyuan, the first ship to ship 2500 tonnes of duplex stainless steel plate has been successfully delivered. The successful application of the stainless steel double phase stainless steel to the world's top ships marks the success of the technology of double phase stainless steel manufacture in the world.
The order of material is currently the world's highest level of Marine duplex stainless steel plate, in addition to the strict performance requirements such as corrosion resistance, mechanical and welding, upper and lower surface roughness requirements within 5 microns, steel double-sided no scratches are allowed. Bidding stage, marketing and technical personnel involved in early taigang, continue to track, on the basis of detailed understanding of customer needs, product process scheme for the optimization and improvement of individuation, and put forward by means of the extension of daming's daming international heavy industry processing advantages, providing customers with "figure, production, processing, distribution," "housekeeper" type parts processing in the whole process of supporting services. Relying on the perfect solution, taisteel finally won the competition with the top international enterprises.
"Part processing and distribution" is to process raw materials into the specifications and shapes required by customers. The shipyard can only make the final assembly welding. Due to special hull structures, planking board of super wide, needs to be completed longitudinal seam joining together, after welding special bending a molding process, work closely with daming taigang heavy industry, from raw material to the process of cutting, edge planing, welding, bending to the weld radiographic testing every link to make targeted deployment, to ensure the overall precision of the parts. Through the unremitting efforts of both sides, the product preprocessing index met the design requirements, and won the approval of shipowners and shipbuilding enterprises.
Duplex stainless steel it possesses the features of the high strength, high corrosion resistance, and excellent welding performance is known as in steel products, widely used in the special construction, nuclear power, petroleum and petrochemical, Marine engineering and other high-end manufacturing. This material can be used to build chemical ships, which can not only meet the needs of many kinds of chemicals, but also can greatly reduce the weight of the ship and improve the transportation efficiency. Due to the high requirement and difficulty in production of Marine duplex stainless steel, the core technology has long been monopolized by foreign enterprises.
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