Continuous Casting Machine Price

The continuous casting machine price varies according to different models, specifications, and customer requirements.

The production process of continuously casting high-temperature molten steel into a billet with a certain cross-sectional shape and a certain size is called continuous steel casting.

The equipment required to complete this process is called continuous casting complete equipment. The electromechanical hydraulic integration of the steel pouring equipment, the main equipment of the continuous casting machine, the cutting area equipment, the dummy bar collection, and transportation equipment constitute the equipment of the core part of continuous steel casting, which is commonly called the continuous casting machine.

Introduction to Main Models

Vertical Continuous Casting Machine

Vertical continuous casting machine was the main type before the 1950s and 1960s. The molten steel pouring system, mold, cutting device, and billet outlet of this continuous casting machine are all arranged on the vertical axis of the continuous casting machine, and the entire equipment occupies a large height space in the workshop. During the production of the vertical continuous caster, the billet solidifies in the mold and the secondary cooling section.

Due to the vertical arrangement, the non-metallic inclusions in the liquid metal are easy to float up, the heat dissipation around the billet is relatively uniform, and the billet is not affected by other bending forces during the drawing process. The resulting billet is of good quality and is not easy to crack, so it is more suitable for producing alloy steel and other crack-sensitive steels.

However, the height of this continuous casting machine is too high, the investment in infrastructure and equipment is large, and the maintenance is also relatively difficult. Moreover, due to high water head casting, the lower section of the slab is prone to bulge deformation under the hydrostatic pressure of molten steel, so it is only suitable for producing small-section slabs.

Vertical Bending Type

A vertical bending continuous casting machine is a transitional model developed on the basis of a vertical continuous caster. Its upper part is the same as that of the vertical continuous caster. The difference is that the vertical bending continuous caster uses the top bending device to top bend the billet by 90 ° after it is completely solidified, so that the billet can be tapped and cut in the horizontal direction. The vertical bending continuous caster partially reduces the height of the whole machine, but because the slab is bent after it is completely solidified, cracks and other defects are easy to occur in production, which is mainly used for the production of small section billet.

Arc Continuous Caster

Arc caster is one of the most widely used models in the world. Its mold, secondary cooling section, billet straightening machine, etc. are all arranged on the 1/4 circumference of the same radius. The billet is completely solidified within the 1/4 circumference. It is pulled out in the horizontal direction after being straightened at a point on the horizontal tangent and then cut to length.

1. Full Arc Continuous Caster

A full arc continuous caster is also known as a single point straightening arc anchor connecting machine. The secondary cooling device of the mold and the tension straightening equipment of the full arc continuous caster are all arranged on 1 / 4 radian of a circle. The billet forms an arc in the mold, moves along the arc track after being pulled out, and receives water spray cooling until it is completely solidified. The fully solidified slab is straightened to the horizontal tangent point, and then pulled out of the continuous caster to cut to a fixed length, and output from the horizontal direction. The height of the continuous caster is basically equal to the arc radius. Generally, the outer arc radius of the continuous caster is called the arc radius of the arc continuous caster.

The main features of the full arc continuous caster are summarized as follows:

Main Advantages:

(1) Because it is arranged in the range of 1/4 arc, its height is lower than that of vertical type and vertical bending type, its equipment quality is lighter, its investment cost is lower, and its installation and maintenance are convenient, so it is widely used;

(2) Due to the low height of the equipment, the hydrostatic pressure of steel borne by the slab during solidification is relatively small, which can reduce the internal crack and segregation caused by bulging deformation, which is conducive to improving the drawing speed and slab quality.

Main Disadvantages:

(1) During the solidification process of molten steel, non-metallic inclusions tend to gather toward the inner arc, which is easy to cause the defect of inclusion enrichment at about 1 / 4 of the billet near the inner arc;

(2) In order to prevent internal crack, the billet is required to be completely solidified before straightening, which limits the increase of drawing speed and affects the production capacity.

2. Multi-point Straightening Arc Continuous Caster

The schematic diagram of the multi-point straightening arc continuous caster is shown in the figure below. With the increase of the casting speed of the continuous caster, the slab can not be completely solidified when it reaches the straightening point. When the slab with a liquid core is straightened at a single point, cracks are easy to occur in the central area of the slab due to the large deformation of the solid-liquid interface. Therefore, the multi-point straightening technology is used to disperse the total strain into the strain of each straightening point, so as to reduce the deformation rate of the solid-liquid interface of the slab. In this way, the slab can be straightened with the liquid core without internal cracks, which is conducive to improving the drawing speed.

3. Straight Mould Arc Continuous Caster

Straight mold arc continuous caster (straight arc continuous caster) adopts a straight mold, which is equipped with a 2.5 ~ 3.5m straight section from the bottom. After passing through the straight section, the slab with the liquid core is gradually bent into an arc, and the subsequent process is exactly the same as that of a multi-point straightening arc continuous caster.

Main Advantages:

(1) It retains the advantages of the vertical continuous caster, and is conducive to the floating and uniform distribution of large inclusions in the molten steel during the solidification process of the molten steel in the straight mold and its lower straight section. The defect of inclusion enrichment at 1/4 of the inner arc side of the billet is avoided, and the effect on the production of highly clean steel is obvious;

(2) Because the slab is gradually curved into an arc with a liquid core, it still has the advantages of low equipment height and low construction cost of arc continuous caster.

Main Disadvantages: 

The straight arc continuous caster has one more bending process, which increases the possibility of cracks on the outer arc side for crack-sensitive steel.

It should be said that the straight mold arc continuous caster is a new type of continuous caster integrating the advantages of vertical and arc continuous casters. At present, this type of caster is used by more and more steel mills because it can better meet the requirements of slab quality and improve production efficiency.

Introduction to Special Edition

Digital Edition

Breaking through the traditional concept and replacing the traditional control idea with advanced digital technology, the digital caster not only shows exquisite process realization ability, but also does not need to carry out complex system design, parameter setting and repeated adjustments when it realizes the effects that cannot be achieved by traditional systems due to the essential change of its structure, nor does it need to change its performance due to long-term operation. Therefore, the digital caster realizes the functions from digital liquid level control digital online width adjustment (slab), digital nonsinusoidal vibration, digital secondary cooling water control, digital online soft reduction, etc. you will appreciate the advantages of simple design, high process level, low cost and low investment risk in the process of digitizing the continuous casting machine. Therefore, compared with the types above, the digital continuous casting machine price is higher.

Hydraulic Control Version

The hydraulic vibration control system has passed 6 million vibration tests continuously, and the test data and results fully meet the actual production needs, and the equipment is intact. Because the digital hydraulic cylinder adopts the internationally advanced sealing structure design, it will not only produce any leakage, but also greatly improve the service life of the seal, which makes the operating cost of the system much lower than that of the mechanical vibration system.

The friction between the mold wall and the moving shell is considered to be the basic factor that tears the shell and limits the casting speed. There is a liquid slag film between the primary shell and the mold wall, and the friction here is viscous friction, that is, the magnitude of friction is proportional to the relative movement speed, and the viscosity of slag film is inversely proportional to the thickness of slag film. In this way, the friction force and the resulting tensile stress on the shell during the vibration positive slip of the mold will be large, which may pull the primary shell apart. Therefore, nonsinusoidal vibration technology has been developed to reduce this friction force.

Theoretical research and simulation experiments show that the friction force can be reduced by 50% ~ 60% by properly selecting non-sinusoidal vibration parameters (deflection rate). Through simple transformation, the ordinary continuous caster can achieve 400 times of hydraulic vibration, and the deflection rate can reach 50%, which can be adjusted online. It is a new technology for the transformation of continuous caster to achieve high quality and high output.

Digital System Edition

With a dynamic soft reduction process, the caster can control the final solidification stage, avoid slab center porosity and minimize segregation. The dynamic soft reduction can produce slabs with the best internal quality. With the continuous successful practice of the principle of thin slab direct rolling steel strip in the world, iron and steel enterprises producing high-quality products have begun to generally adopt soft reduction control technology.

The digital slab mold online width adjustment control system avoids frequent mold replacement, improves the operation rate of the continuous caster, and realizes the user needs of multiple specifications and small batches.

The secondary cooling water control system of the mold of the digital continuous caster adopts a digital regulating valve, which is directly controlled by PLC, avoiding the vibration and corresponding lag that are easy to occur in the electric servo valve and the pneumatic diaphragm valve, and accurately realizing the dynamic control of the secondary cooling water.

For continuous casting machine price, please feel free to contact me.

Email: [email protected]; [email protected].

WhatsApp & WeChat: +8618392033938..

Website: www.hanmetallurgy.com; www.hanrm.com.