In the 21st century, steel products will remain the most critical irreplaceable structural and functional material with the most significant output and the most comprehensive coverage in human society. The pace of structural adjustment of the world's metallurgical industry is accelerating, and the production focus will shift from developed countries to developing countries. At present, our country is in the process of industrialization. The continuous and rapid development of various sectors of the national economy and industrial upgrading has put forward higher requirements on the variety and quality of steel products. Therefore, speeding up the structural adjustment of my country's metallurgical industry will be of great significance.
Der er stadig et hul i udviklingen af varm-dip-galvanisering af båndstål i mit land sammenlignet med verdensplan. De fleste af de eksisterende varmgalvaniserings--produktionslinjer i mit land har ulemper: bagudrettet teknologi, højt zinkforbrug, lavt produktoutput, dårlig produktkvalitet, høje produktionsomkostninger, højt energiforbrug, utilstrækkelige miljøbeskyttelsesforanstaltninger og ofte forårsage alvorlig miljøforurening. Sådanne produktionslinjer kan ikke opfylde kravene i mit land. Behovene for den nationale økonomi til at tage fart. Et lille antal store statsejede-stålvirksomheder kan producere varmgalvaniserede plader af høj-kvalitet- til husholdningsapparater og biler. Det meste af den kontinuerlige varm-dip-galvaniseringsteknologi til stor-stålplader i mit land introduceres fra USA, Japan og Europa til en betydelig pris. Det er på et generelt niveau, med mange ens niveauer og gentagelighed. , Mange modne teknologier. Der er mange tilgængelige produkter og lignende produkter, få høj-teknologiske, nye og avancerede-teknologier, få høj-teknologiske produkter og færre uafhængigt udviklede teknologier. Kerneteknologien kan ikke mestres fuldt ud, og der er ingen mulighed for at udvikle og producere nye sorter.
On the other hand, my country's self-developed hot-dip galvanizing process and technology conversion rate are low, and it isn't easy to form an industry. Low integration of immature and imperfect system technology results is the crux of engineering and industrialization. These problems are mainly because the production technology and equipment development capabilities of hot-dip galvanized steel sheets for high-performance automobiles in my country lag behind the world's advanced level. Therefore, developing the production technology and equipment high-performance automobile hot-dip galvanized steel sheet is indispensable. Strengthen the system integration of results, promote the transformation and application of results, gradually increase the self-sufficiency rate of my country's high-performance hot-dip galvanized automotive sheet products, and promote the progress and development of technology in this field in my country. The large-scale modern continuous hot-dip galvanizing steel plate unit in my country is imported from different countries such as the United States, Japan, Europe, etc. Although its products are relatively similar, the production technology has its characteristics. Application and innovation are significant work in surface coating technology. This move will accelerate the shortening gap between my country and foreign countries, reduce repeated introductions, and realize the system integration of high-performance hot-dip galvanized steel technology and equipment scientific research results. Realize the transformation and application of results, and push our technology to the world.
The domestic production technology and equipment of hot-dip galvanized steel sheets for high-performance automobiles currently mainly rely on introducing advanced foreign technologies. Only Baosteel has conducted some product-specific research on the production and development of automobile sheets and other imports for high-performance automobiles. As a result, the enterprises of the hot-dip galvanized sheet production line is just pure production and use, failing to digest and absorb fundamentally and effectively develop and use innovations. As the earliest domestic research unit to enter the field of continuous hot-dip galvanizing of steel strips, the Central Iron and Steel Research Institute assisted WISCO in introducing and digesting the first domestic hot-dip galvanizing unit in the 1970s. During the subsequent "Seventh Five-Year Plan" and "Eighth Five-Year Plan" period, the Central Iron and Steel Research Institute completed the development and scientific research of Galfan and Galvalume alloy coatings. The Central Iron and Steel Research Institute subsequently carried out the localization of continuous hot-dip coating equipment for steel strips and coordinated with relevant domestic units to complete the localization of essential equipment such as air knives, welders, sunken rolls (used by Galvalume), and gas purification devices. In recent years, the Central Iron and Steel Research Institute has always adhered to the combination of advancement in scientific research and development in these fields and has successfully developed a regenerative reduction annealing furnace with a combustion efficiency of more than 70 percent ; developed and promoted continuous hot-dip galvanizing of wideband steel. The alloy coating technology is designed to complete the regenerative folding reduction annealing furnace and designed and developed a medium current density electrolytic degreasing technology, closely tracking the ZAM series products with the highest corrosion resistance currently abroad and completing the pilot test.
Central Iron and Steel Research Institute har en 100 mm bred eksperimentel enhed, hvorpå GF, GL og hot-dip Al-Si-legeringsbelægninger med succes udvikles. Derudover har Central Iron and Steel Research Institute i øjeblikket komplette laboratorieforhold til eksperimentel afprøvning af forskellige varmgalvaniserede-produkter.
På nuværende tidspunkt er udviklingen af varm-dybgalvaniseret pladeteknologi og udstyr til højtydende biler stadig relativt svag i Kina. De centrale indenlandske enheder, der er involveret i dette område, er store teknologicentre for stålvirksomheder, og nogle universiteter udfører også eksperimentelle eller testformål. Videnskabelige forskningsaktiviteter.
