The world’s largest tubular mold (220×1250) was poured successfully!
The world’s largest tubular mold (220×1250) was poured successfully!
The determination of the structural parameters of the continuous casting tundish and the configuration of refractory materials
In layman’s terms, the tundish (picture 2 above) is a refractory container, which is used to contain molten steel poured from the ladle (picture 1 above), and then diverted to each mold (picture 3, 6 above). Reduce pressure to stabilize steel flow. The height of the liquid level in the ladle is at least…
Types of refractory raw materials for continuous casting functional materials and their performance requirements
Functional refractories for continuous casting refer to the integral stopper, (ladle) shroud and immersion nozzle, which are called the three major pieces of continuous casting. Some people also include the ladle slide plate, the tundish slide plate, and the tundish top nozzle. Carbon refractories are commonly known as carbon-bonded refractories. In fact, the flow control…
The billet continuous casting speed is 5.7 m/min!
On October 31, a factory made a new breakthrough in the industrial test of high-speed steel billet continuous casting. The maximum pulling speed of HRB400 steel with 155*155cm cross-section exceeded 5.7 m/min, breaking the 5.07 m/min set by the plant last year. Minute ultra-high speed record, once again set the highest record of domestic billet…
Analysis of the pressure problem during the installation of the mold
live situation After the mold is installed, in order to check the sealing condition of the mold during the assembly process, it is necessary to conduct a water flow test to see whether the connection and coordination between the various parts are normal, and whether the seal is leaking. I often observe the mold installation…
Small size billet high speed casting technology
Abstract: With the progress of continuous casting industry, steel works in the progress of the process equipment, billet continuous casting machine’s drawing speed is rising steadily. Shanxi Jianbang Industry Group for 160 * 160 small billet caster, in simple equipment modification and process optimization to improve, to achieve the HRB40OE in production process is drawing…
[Original Article] Production practice: Summary of golden ideas in continuous casting workshop
Argon gas adjustment during continuous casting Argon blowing, argon blowing, the upper (water) port is generally not as big as a stopper; The pulling speed changes, the large and small change to blow argon, the goldfish spit out and see “ghost fire”, and the liquid level data is set high. Better argon blowing state of…
[Original Article] Research and Analysis on Defects of Continuous Casting Billets
There are three four-machine four-strand continuous casters in the second steelmaking plant of Anyang Iron and Steel Co., Ltd., two arc-shaped radii of 5250mm, and one arc-shaped In the production process, the quality defects of the cast slab fall off sometimes appear. As a unique shape of billet continuous casting shape defect is a quality…
Achieve the maximum casting speed of the 6m arc 165 billet continuous casting machine is 2.6-2.7m/min
The main task of the continuous casting operation area is making molten steel into qualified slabs. The indispensable thing is cooling water. Whether the cooling water can be used correctly is related to the continuous casting machine breakout accident and the quality control of the slab. The engineer operated the following points： In order to…
[Original Articles] How to distinguish the quality defects of billets?
The quality of continuous casting slab determines the quality of final product, so in a broad sense, the quality of continuous casting slab refers to the severity of slab defects allowed by qualified products. Its meaning includes four aspects: The first is the purity of billet: it refers to the quantity, shape and distribution of…