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Main uses of stainless steel strip
When it comes to stainless steel strip, many friends feel strange. For such a product, we must have questions, that is, what is the main purpose of stainless steel strip? What occasions can we use this product?
The difference and function between pressing and cutting of woodworking band saw blade
In the process of traveling, open up the saw path, reduce the friction between the saw blade and the cutting surface, and prevent the saw blade from heating due to friction. 3、 During the sawing process, control the cutting direction and guide the saw blade forward. There are two existing technologies for widening the saw path. One is press, which means to flatten and widen the tooth tip with a press, and form sawing material after grinding to broaden the sawing path; The other is to move the material. The operation method is to separate the tooth tip from the left and right to produce a sawing path. This one is relatively easy to operate. Now we will analyze the functions and differences of the two saws; We know that the main role of sawing material is to cut off wood fibers, broaden the sawing path, and ensure the smooth passage of the saw blade. But if you want to use the saw blade for a long time, you must ensure that every saw tooth is involved in the work. As long as you have this, you can ensure that the saw blade has a long service time, good processing quality, and ensure that the output is increased.
Difference between cold-rolled steel and hot-rolled steel
By definition, steel ingots or billets are difficult to deform and process at normal temperature. Generally, they are heated to 1100~1250 ℃ for rolling. This rolling process is called hot rolling.
Analysis and development of steel strip industry
Life cycle of steel strip industry. By analyzing the market growth rate, demand growth rate, product variety, number of competitors, barriers to entry and exit, technological change, user purchase behavior and other aspects of the steel strip industry, the development stage of the industry is judged;
National Development and Reform Commission: operation of steel industry from January to November 2022
Steel production has declined. According to the data of the National Bureau of Statistics, the national production of pig iron and crude steel from January to November was 795.06 million tons and 935.11 million tons respectively, down 0.4% and 1.4% year on year respectively.
Key metallurgical technology and industrialization of high-quality bearing steel based on non-aluminum deoxidization process
Bearing steel is an important manufacturing material for basic parts of mechanical equipment, which is widely used in military industry, aerospace, transportation and other fields. With the rapid development of the manufacturing industry, the quality and service time of mechanical equipment have increased significantly, which puts forward higher requirements for the fatigue life and quality stability of bearing steel. At the end of the 20th century, the development of clean steel smelting technology promoted the improvement of the quality of bearing steel. The total oxygen content of bearing steel decreased from 30 ppm to less than 5 ppm, and the fatigue life increased by 100 times; With the improvement of metallurgical technology and equipment capacity, the total oxygen content of bearing steel has been continuously reduced. At present, advanced enterprises at home and abroad have been able to stably control below 5ppm; It is generally believed internationally that when the total oxygen content in bearing steel is less than 5ppm, the sulfur content is less than 20ppm, and the titanium content is less than 10ppm, it reaches the ultra-high purity level.
Add Masteel, Zhongtian Steel, Donghai Special Steel and Rizhao Steel! 66 steel enterprises have completed the publicity of ultra-low emission transformation!
Since August 2020, the China Iron and Steel Industry Association has carried out the publicity work of ultra-low emission transformation and evaluation and monitoring progress of iron and steel enterprises. Up to now, 66 enterprises have been publicized on the website of the Steel Association. The summary of the list of enterprises that have been publicized and the contents of each enterprise's publicity are as follows:
China Baowu Southwest (Industrial) Headquarters Project started
China Baowu Group has four projects in Dadukou, including the Southwest Headquarters of China Baowu, the China Iron and Steel Industry Museum, the Southwest New Material Research and Development Center of China Baowu Central Research Institute, and the Chongqing Campus of Baowu University. China Baowu Southwest (Industrial) Headquarters is an additional project built on the basis of Chongqing Industrial Culture Expo Park according to the "Five Ones" strategic cooperation framework agreement signed by Chongqing and China Baowu Group.