Continous Casting Machine Spart Parts

CCM casting powder

The protective slag added to the molten steel surface of the mold gradually heats up and sinters and melts under the action of the heat released by the molten steel, forming a double-layer, three-layer or multi-layer slag layer structure on the molten steel surface of the mold. Since the slab moves downward at a certain pulling speed and the mold vibrates up and down, negative slipping motion occurs, creating a pressure difference that sucks molten slag into the space between the mold and the billet shell. Under the cooling of the continuous casting mold wall, a solid slag film of glass or crystal is solidified on the side of the continuous casting mold wall, and the state of liquid slag is maintained on the side of the shell. As the mold vibrates and the billet is drawn, the liquid slag and solid slag film are brought out of the lower mouth of the mold and separated from the cast billet under the impact of the secondary cooling water, thereby completing the consumption process of the mold slag. The role of mold powder from the time it is added to the time it leaves the continuous casting mold can be summarized as follows:
(1) Prevent secondary oxidation of molten steel
(2) Thermal insulation reduces heat loss of molten steel
(3) Absorb and dissolve non-metallic inclusions
(4) Lubricating between the continuous casting mold wall and the billet shell
(5) Improve and control the heat transfer between the slab and the continuous casting mold

Continuous casting sector section

Continuous Casting, Sector Section
continuous casting machine, continuous casting equipment
Multiple continuous casting machine moving parts

The sector section is one of the important links in the production process of the continuous casting machine. The main function of the sector section is to guide the cast slab pulled out from the support guide section and prevent the shell of the cast slab from bulging deformation under the static pressure of the molten steel. At the same time, the cast slab with the liquid core continues to be cooled by water spray or gas-water atomization, so that the cast slab continues to be spray-cooled until the slab is completely condensed and stops. The cast slab is pulled out and straightened into a slab through the driving wheels placed on each segment; the segments also play the role of guiding, transporting and clamping the dummy bar for pouring and drawing. A complete sector segment is mainly composed of inner and outer arc structures, rod installation (including driving rod and free wheel), clamping guide equipment, driving wheel pressing equipment, rod gap adjustment equipment, water cooling, lubrication, hydraulic piping, etc.
Some sector sections are also equipped with two side structures. The side structures are fixed on the outer arc structure, and the mixed joint adjustment equipment is fixed on the side structures. The side structure has the function of guiding the upper structure. A hanging shaft for lifting the sector section is installed above the side structure. The side structure and outer arc structure are also equipped with guide shafts for replacing the sector section.
The single continuous casting machine that forms the continuous casting line in continuous casting production is generally called a sector section, which is generally divided into arc section (or curved section), straightening section, horizontal section, etc. According to the different casting billets, they can be divided into slab sector sections, square billet sector sections and round billet sector sections. Commonly seen in production are slab sector sections and billet sector sections.
The sector section of the continuous casting machine plays the role of supporting and guiding the slab. It is the equipment that is in direct contact with the slab during the condensation process. It has a great influence on the surface quality and internal quality of the slab. The primary purpose of sector control is to ensure accurate and stable roll gaps according to process requirements.

continuous caster movable section

Rollers in the moving part of a continuous casting machine

Advantages of continuous casting movable section technology
1. Improve billet quality: By optimizing the design of the active section of the mold, this technology can accurately control the flow rate of molten steel and the shape of the mold to avoid billet defects caused by too fast or too slow crystallization, thereby improving the quality of the billet.
2. Reduce energy consumption: The active section technology of the continuous casting machine can finely control the flow rate of molten steel and the shape of the crystallizer, reducing wasted heat energy and reducing energy consumption.
3. Improve production efficiency: The continuous casting machine movable section technology can realize automation and intelligent control of the entire production process of the steel plant, greatly improving production efficiency.

Sprinkler rack