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POWER TRANSMISSION

Clean Steel • Organic Growth

 

Power transmission

Industry profile

In recent years, with the rapid growth of national economy, electricity consumption is swelling, and the electric power industry is developing fast. Thanks to the national vigorous promotion of West To East Power Transmission Project and North To South Power Transmission Project, especially the successful practice of EHVDC (extra-high voltage direct current) Transmission Project, the electric power industry develops really fast. National electric power transmission industry has shown a favorable momentum of development, and with the increase of investment in power grid, demands for electricity transmission will increase, so there is a great prospect for the transmission line industry.

Products application

Angle steel, commonly known as angle iron, includes two strip steels whose cross sections make a right angle.It has good toughness, high strength, good corrosion resistance, welding performance and surface properties, etc.And its main use is for making frame structures, such as high voltage transmission towers.Now our country is vigorously promoting high voltage transmission project, thus there has been a wide use of large-sized angle steels.
Steel bars for the prestressed concrete (P.C Steel bar) because it has high strength and toughness, low relaxation, and the grip of concrete is strong, good weldability and upset, save material, has been widely used in prestressed concrete components such as transmission line pole, has the very broad market.

R&D

  • ● Take the lead in the domestic development < 220 and < 250 large size Angle steel, used in our country "hami south ~ zhengzhou" - the first in the 800 kv uhv dc transmission project
  • ● At first double + strong straightening straightening technology, to ensure that large size Angle bending in the 0.1% range, the quality of the products reached the domestic leading
  • ● Adopt unique chemical composition design, futures large size high strength low Angle steel yield strength is easy to difficult problem, at the same time to ensure that the steel has good impact toughness
  • ● With the state grid resistance to low temperature develop high-strength Angle steel, fill the domestic blank
  • ● On-line automatic straightening derusting, cold drawn nick, online heating using high frequency induction heating furnace (secondary quench heating and one tempering heating), heat treatment cooling water temperature automatic control, water-crossing heat treatment, online antirust processing, and SVG resonance elimination + reactive power compensation of finished products, and other automatic production lines composed of advanced technology and equipment. We have realized the automatic production model of energy conservation and environmental protection, which is the first production equipment of this kind in China; at the same time, the quality of products is ensured to be in the leading position domestically
  • ● Large-scale research, development and production of large cross-sectional area. The sea piles in production are generally of large diameters of 800-1,200 mm, and the largest is even up to 1,500 mm, so customers have to choose prestressed steel bars of 14 mm or more. Upon concerted efforts of branch departments, we have produced a sample for trial by our customers. Until now, our domestic counterparts of steel bars haven't produced this kind of products
  • ● PC steel bars are automatically sprayed with antirust paint in the surface. Rust products for the rainy season have been developed, which plays a leading role in China

Honor&Certificate

Angle steel for tower has been rated as “Famous Brand Product of Suzhou ” ,“High & New Tech Product in Jiangsu Province”,and certified by ten classification societies including: CCS, ABS、DNV、GL、LR、BV、RINA、NK、KR and.RS[ View more certificates]
High strength prestressed concrete steel rods has been rated as "suzhou brand products", "high-tech products in jiangsu province". Through the ISO 9001:2008 quality management system, ISO 14001:2004 environmental management system and OHSAS 18001:2007 occupational health and safety management system certification. And South Korea KS certification. [ View more certificates]

Partner

  • ● Cooperative project has been conducted with the Materials Science and Engineering College of Jiangsu University of Science and Technology and the East China Branch of the General Iron and Steel Research Institute to make technological breakthrough
  • ● Ø8.3 mm series of PC steel bar products, etc. have been developed by cooperating with South Korea's Samsung.
  • ● Joint research on bar heating furnace temperature optimization (the black box tracking test) has been conducted with Beijing Savemation Technology Co., Ltd.
  • ● State Grid
  • ● Changshu Fengfan 、Zhejiang Shengda、Anhui Hongyuan、Chongqing Shuntai

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