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Key topics of the conference include the development trend and prospects of the international petrochemical industry, the rise of the petrochemical industry in the Middle East, innovation in the science and technology, industrial chain, raw materials, and engineering of the petrochemical industry, the layout and investment opportunities of China's chemical industry, and the harmony and win-win of the chemical industry and society. Wait. It is reported that the meeting will invite companies such as PetroChina, Sinopec, Shenhua, Yanchang Petroleum, Bayer, Evonik, Mitsui Chemicals and other key domestic industries to attend the meeting.
Beijing News (Reporter Zhang Yiming) The 2010 China International Petroleum and Chemical Congress will be held from September 15 to 17 at Shangri-La Hotel, Pudong, Shanghai. According to the organizers of the China Petroleum and Chemical Industry Federation, the theme of the current session is: "adjustment and opportunities in the post-crisis era."
Round steel is a kind of hollow cylindrical metal material, which is widely used in construction, machinery manufacturing, automobile manufacturing, energy, transportation and other industries.
Round steel is mainly made of carbon steel, alloy steel and tool steel.
Among them, carbon steel round steel refers to steel with carbon content within the range of 0.20% to 0.55%.
The production process of round steel is very diverse, including hot rolling, cold drawing and cold drawing.
Among them, the hot rolling production process refers to the steel material heated to a certain temperature, plastic deformation through rolling machinery and equipment, pressed into different specifications of the shape of steel.
The cold drawing process is the use of steel wire material for cold drawing, which can obtain a higher surface finish for the production of precision parts.
Cold drawing process is to draw steel in cold storage to obtain higher density, hardness and strength.
The wide application of round steel lies in its material characteristics and production process, which can meet the needs of different industries.
In construction projects, round steel is mainly used to build steel structure houses, large factories, Bridges, oil drilling platforms and oil mining equipment.
In the machinery manufacturing industry, round steel is mainly used to process gears, bearings, connecting rods, pins, shafts and other parts.
In the automobile manufacturing industry, round steel is mainly used to make auto parts, frames, suspension systems, guiding mechanisms and so on.
It is also widely used in energy, transportation and other industries.