Large marine crankshafts are the core components of marine diesel engines. The 90-type crankshaft, which has just been off the assembly line, is 15.7 meters long and weighs 198 tons. The rough parts are supplied by Anshan Heavy Machinery Co., Ltd., and the user is South Korea Doosan Diesel Engine Co., Ltd., which will be installed on the 4250 standard container ship manufactured by China Yangtze River Shipyard. Since the development of the first 50-type crankshaft in December 2007, Heavy Industry·Zhangzhong Group has successfully produced 31 50-70 crankshafts. The production process has become increasingly mature, and the product quality has won high praise from users. Recently, in the first batch of special investment of 100 billion yuan to expand domestic demand and maintain growth, the Group's second-phase capacity expansion project of the crankshaft is among them. This is the group's ability to produce 150 crankshafts per year by 2011. Achieve full coverage of 50-108 crankshaft production, and build a world-class large-scale crankshaft manufacturing enterprise to provide strong financial support.
The 90-type crankshaft is a truly "big head" in the crankshaft family. Its length and weight are twice and five times that of the 50-type crankshaft (the type 50 crankshaft is 6.7 meters long and weighs 41 tons). The test data is as many as 921. In the development process, the heavy industry and heavy lifting group relied on sophisticated equipment and rich manufacturing experience to develop a rigorous process plan and quality control plan from the single-piece machining, hot-packing, integral machining and grinding of the crankshaft. A series of technical issues, such as machining, hot loading, lifting, and square, ensure that product quality meets international standards.
So far, the Heavy Industry and Lifting Group has produced more than 1,800 sets of 1.5 MW wind power speed-increasing machines, and its installed capacity has ranked first in the country. It has produced 32 crankshafts, 9 tunnel boring machines, and 16 nuclear power lifting equipment. The only enterprise in China with a complete production capacity of the crown, lower ring and blade of the 700,000 kW turbine. This year, under the grim situation that the demand for traditional products has dropped significantly, the growth of the group's growth industry has not diminished. It plans to produce more than 1,700 sets of 1.5 MW wind turbines and achieve 3 MW wind and land growth. The machine is mass-produced; 61 crankshafts are produced. Orders for the five growth industries have been placed next year.
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Henan Carbons New Material Technology Co., Ltd. , https://www.kygraphiteblock.com