In order to vigorously develop group standards,and promote the application demonstration of group standards,the Ministry of Industry and Information Technology has launched the annual selection of 100 group standard application demonstration projects(hereinafter referred to as"100 group standards")since 2017.Up to now,743 group standard application demonstration projects have been selected in seven batches,of which more than 50 projects have been awarded in the steel industry,which has effectively promoted technological innovation,product quality upgrading,and rapid response to market demand.This article deeply analyzes the characteristics of the 100 group standards in the steel industry and the important role they play in transformation and development of steel industry,and puts forward suggestions for future development.
An integrated furnace type control platform has been established through the development and application of key technologies such as comprehensive masonry,efficient slag splashing and protection technology,high-temperature quick repair technology using water-based furnace material,and efficient smelting technology.The one-time carbon drawing rate of the converter has been increased to over 90%,the smelting cycle has been shortened by 3 minutes,the total iron content in the slag has been reduced by 2.2%,the tapping temperature has been reduced by 5℃,the overall slag splashing time has been shortened by 1 minute,the lime consumption has been reduced by 2 kg/t,and the furnace material consumption has been reduced by about 0.1 kg/(t·steel),The generated benefits are approximately 18.3 million yuan per year.
Full solid waste cementitious material is a new type of cementitious material formed by grinding the solid waste produced by a steel plant into powder and mixing it through proportioning.It can not only effectively treat solid waste,but also be used for various purposes such as building materials and roadbed materials.The preparation process of all solid waste cementitious materials is simple,the raw materials are easy to obtain,and the cost is low,which has broad application prospects.Through experiments,it has been found that all solid waste cementitious materials can effectively replace traditional cementitious concrete cementitious materials,with more advantages in compressive strength compared to cementitious concrete(C40 grade).The promotion and application of all solid waste cementitious materials is conducive to the consumption of solid waste in steel plants,reducing the amount of cement clinker,and reducing the total carbon emissions of the building materials industry;Beneficial to protecting natural resources and reducing energy consumption;It is conducive to adjusting industrial structure,promoting high-quality development of industries and enterprises,and has significant and long-term social benefits.
X-ray Fluorescence Spectrometry(Fused Cast Bead Method)was used to detect elements of Silicon,Aluminium and Barium in Silicon-Aluminium-Barium Alloy.By optimize Oxidation parameters,Fused Cast Bead parameters for Silicon-Aluminium-Barium Alloy and The Measurement conditions of Fluorescence Spectrometer,the Silicon-Aluminium-Barium Alloy sample were accurately measured.The method is rapid,simple,accurate and stables.
In order to test the grain size and bending properties of low alloy steel plate under low rolling force,the composition design with different contents of Nb,V and C elements is adopted.The test results show that the plastic and grain size of the material can be improved by adopting NB-V microalloying or reducing the content of C.Especially when the C content is reduced,the bending performance is still good at low grain size.
