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if steel the emergence of technical and management level of iron and steel enterprises put forward higher requirements. The technical side, the hot metal pretreatment technology must be used to ensure that as the steel-making raw materials with low phosphorus, sulfur, silicon hot metal; must adopt furnace refining technology and online carbon, oxygen analysis technology to ensure the accuracy of molten steel ingredients and pure ; must rh (ultra-low carbon steel in high-speed decarburization process) to ensure that the molten steel with very low carbon and gas content, must adopt a low-carbon cover agent, protection of slag and refractory guarantee molten steel back carbon outer plate You must clean up the surface of the board embryo;Must be heated to finishing and coiling strip temperature control technology, to ensure uniform mechanical properties of hot rolled strip; must use high-precision hot rolled, cold rolled, and the guarantee of excellent shape and high precision size and to prevent the generation of roller printing and coiling defects. Consistent system of production process quality assurance system is essential, In other words, each process in steelmaking, continuous casting, hot rolling and cold rolling 更多：https://www.bmcx.com/ , must be strictly in accordance with the end use of the product to organize production, especially in the frequent changes in the varieties of steel when, to adopt appropriate measures to ensure the quality of the final product. A major issue is,How comprehensive the whole production system, linking galvanized production line and other production processes, reduce costs to the greatest extent. In short, the production of galvanized sheet for each steel enterprises, especially in the domestic iron and steel enterprises, is a very big challenge. 7) solid solution hardening steel galvanized sheet In order to improve the strength of steel, elements such as Si, Mn, and p is usually added to the solid solution strengthening and strengthening martensite and bainite For dp duplex steel, with the critical cooling rate by controlling the content of alloying elements and The martensite can be obtained.

IF steel against steel of the skill level and management level of enterprise put forward higher requirements. In technology aspects, must used hot metal pretreatment technology, guarantee with low phosphorus, and sulfur, and Silicon of hot metal as steelmaking raw materials; must used furnace Hou scouring technology and online of carbon, and oxygen analysis technology, guarantee molten steel high of components accuracy and pure degrees; must used RH (in the super low carbon steel high-speed off carbon technology), guarantee molten steel very low of carbon and gas content, must used low carbon of cover agent, and protection slag and resistance material, guarantee molten steel does not back carbon, for outside plate, must cleanup plate embryo surface;Must be from the heat to finish rolling and rolling of strip temperature control technology to ensure uniform mechanical properties of hot rolled strip; must use high precision hot rolling, cold rolling technology to ensure excellent shape and high accuracy of dimensions and prevent defects of roller printing and coiling techniques, and so on. Interlinked production process quality assurance system is necessary, that is to say 更多：https://www.bmcx.com/ , in steelmaking, continuous casting, hot rolling and cold rolling of every procedure, must strictly follow the end-use product to production, especially in the frequent changes of steel variety, must adopt appropriate measures to guarantee the quality of the final product. Another major issue is,How to through the integrated production system, zinc plating production line connects with other production processes in order to minimize costs. In short, galvanized plate for each production in iron and steel enterprise, especially the domestic iron and steel enterprises, are a very big challenge. 7) solid solution strengthening plate of galvanized sheet In order to improve the strength of steel, usually add Si, Mn and p elements, such as solid solution strengthening, and take advantage of martensite and Bainite structure strengthening, for DP dual phase steel by controlling the content of alloying elements and use of critical cooling speed to get the horse's body.

The emergence of IF steel in iron and steel enterprise's technical level and management level puts forward higher request. In technical terms, must use hot metal pretreatment technology, guaranteed that with low phosphorus, sulfur, silicon steel hot metal as raw material; Must use furnace after scouring technology and online of carbon and oxygen analysis technology,Ensure that the composition of molten steel high accuracy and purity; Must use RH (super low carbon steel high speed decarburization process) and to ensure that the molten steel extremely low carbon and gas content, must use low carbon coating agent, protecting slag and refractory material, guarantee molten steel don't back to carbon, for outside plate, must clean up plate embryo surface;Must use from heating to finish rolling and coiling strip between the temperature control technology, ensure hot rolled strip uniform mechanical properties; Must use high precision hot, cold rolling technology, ensure excellent plate shape and the size of the high precision and prevent to produce roller and coiling defect technology and so on.Construct the production process quality guarantee system is necessary, that is to say, in the steelmaking 更多：https://www.bmcx.com/ , continuous casting and hot rolling and cold rolled every procedure, must be in strict accordance with the product end use to organize production, especially in steel varieties change frequently, must adopt corresponding measures to ensure the quality of the final product.Another major task is, how to through the comprehensive whole production system, will be galvanized line and other production process link, with the maximum degree of reduce the cost. In a word, the production with galvanized sheet for each iron and steel enterprise, especially the domestic iron and steel enterprise, it is a very big challenge. 7) solid solution strengthening type steel plate galvanized sheet in order to improve the strength of the steel, usually add Si, Mn and P elements to solid solution strengthening, and use of martensite and bainite organization strengthening, to DP dual phase steel, through the control alloy element content and the critical cooling speed can be obtain martensitic organization.

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