Category: Metallurgy Insights

Non-metallic phases that cannot be eliminated after processing or heat treatment, such as oxides, sulfides, nitrides, etc., which are produced or mixed in the smelting and casting process and have no connection with the steel matrix and exist independently, are collectively referred to as non-metallic inclusions, also referred to as…

The biggest feature of continuous casting process is forced cooling of molten steel, solidifying molten steel into billet in a short time. Therefore, the continuous casting process itself has more stringent requirements on the quality of molten steel. It must not only ensure stable and appropriate molten steel temperature and deoxidation…

Eight main steel pipe rolling process Following the invention of periodic tube rolling technology, a variety of pipe rolling processes have emerged worldwide. These include Ehrhardt tube rolling, automatic tube rolling, Diescher tube rolling, three-roll tube rolling, hot extrusion tube production, continuous tube rolling, cold drawing (rolling) tube, and hot…

As mentioned in our previous post, the main equipment of billet continuous casting machine is usually the whole equipment from receiving the ladle to cutting the billet into fixed length and collecting it on the cooling bed. This blog focus on the auxiliary equipment from the ladle transportation equipment, tundish…

The main equipment of billet continuous casting machine is usually the whole equipment from receiving the ladle to cutting the billet into fixed length and collecting it on the cooling bed. It includes ladle carrying equipment, tundish and tundish carrying equipment, mould and mould vibration device, secondary cooling device, withdrawal…

General Introduction to Argon Blowing in Ladle Argon is an inert gas that is insoluble in steel. After argon is blown into the molten steel through a gas permeable device, it can form countless tiny bubbles. For H, O, and N in the molten steel, it is equivalent to a…

Steel materials Electric furnace steel smelting has hot charging and cold charging. Hot charging mainly uses molten iron or molten steel for mixing. At present, electric furnace steel smelting directly uses hot charging very little. Cold charging mainly uses scrap steel, pig iron, scrap iron, soft steel, sponge iron and…

Refractory materials generally refer to inorganic non-metallic materials with a refractoriness of more than 1580℃. They can withstand the physical and chemical effects of gases, dust, slag, liquid metal and other substances, and have a certain strength of masonry and knotting performance. In Chinese, refractory material, “耐火材料” is simply called “耐材”.…

New-product: 1100MPa High-strength Solid Wire At present, there isn’t a matching welding material with the1100MPa high-strength steel plate, most of the industry is forced to use 900MPa grade wire, in the design to avoid the welding joint force, which brings more trouble to the equipment design, but also is the…

Roll flaw detection is essential for almost all high-standard rolling mill. Common methods for roll flaw detection include magnetic particle flaw detection, penetrant color flaw detection, eddy current flaw detection, and ultrasonic flaw detection. Magnetic Particle Flaw Detection: This technology is primarily used to identify surface cracks on the roll body…