What is cold rolling mill?

author: Glimpse

2023-01-05

What is cold rolling mill?
Cold rolling mill is a steel industrial process, during this process, steel materials deformed by applying strain under re-crystallization temperature to achieve certain properties. The physical properties generated will be different, depending on the containing variables applied in the process.

As a cold-rolled device practitioner, Glimpse is often asked what a cold rolling mill is? Through this article, I try to introduce cold rolling machine, hoping to solve some people's questions about cold rolling machine. At the same time, introduce various types of cold rolling machines of GLIMPSE TECHNOLOGY.

Before we answer what cold rolling mill is, let's first understand how steel is used in various industries as a basic material from raw material smelting to finished products. The general process is: iron making → steel making → continuous casting → hot rolling → cold rolling → finished products. Most of the steel goes through these processes. Only about 20% of them are directly used as materials after hot rolling. The remaining 80% of the steel needs to be cold rolled before it can be used as a material. Therefore, cold rolling is a very important process.

The difference between rolling is hot and cold rolled, the difference between these two processes is the deformation temperature. The rolling deformation above the re -crystallization temperature of the steel is called hot rolling; otherwise, the rolling deformation is completed in the re -crystallization temperature of the steel, and it is called cold rolling. The re -crystallization temperature of the steel depends on the different materials, generally 900 ° C.

Cold -rolled products have the following advantages than hot -rolled products:
With the continuous improvement of hot -rolled technology, the thickness of the hot rolling finished products has been 0.8mm, and the size accuracy and plate shape are very much improved than before. Although hot -rolled products have a trend of alternative cold -rolled products, cold -rolled products still have irreplaceable advantages:
Higher size accuracy
Hardness increased by 20%
Increase the yield intensity
Increased anti -tensile intensity
Improve surface smoothness
Improved straight degree

What is cold rolling? Cold rolling definition
Cold rolling is a kind of industrial process. In this process, the material deforms by applying strain at the re -crystallization temperature to achieve a certain performance. The physical properties generated will be different, depending on the containing variables applied in the process.

Glimpse Cold Rolling Mills Types:

20 high cold rolling mill

The 20 high cold rolling mill is suitable for processing high-strength steel strips such as stainless steel, silicon steel and carbon steel. The equipment is characterized by high speed, stability, good surface quality of finished products, and good shape. Stainless steel: AISI200 series reduction 75%, AISI300 series reduction 85%, speed 700m/min; Carbon steel: the maximum reduction is more than 95%, the speed is 800m/min, and the minimum rolling thickness is 0.08mm.

Reversible 18 high cold rolling mill

The 18 high cold rolling mill is suitable for processing stainless steel, carbon steel and non-ferrous metal strips. The product thickness and specification are flexible and the unit has a high cost performance. At present, many successful cases are independently developed, designed and manufactured by our company. The unit has high speed, stability and high quality of finished products. The minimum rolling thickness is 0.18mm, and the speed is 800m/min. It has the functions of intermediate roll traverse and hydraulic roll bending. The consumption of steel per ton is only 80% of that of traditional equipment, and its performance surpasses that of imported products of the same type.

HC 6 high cold rolling mill

The HC cold rolling machine is a six-roller cold rolling machine. It is the middle roller that can increase the axial twitch on the basis of the four -roller rolling machine. With the bending roller of the working roller, the control of the plate shape is better. Better and harder materials.

Reversible 4 high cold rolling mill

The four -roller reversible cold rolling unit is widely used in cold rolling production of unpopular steel, and can also be used for cold rolling billets of stainless steel. The four -roller reversible cold rolling machine has AGC down control, the downward adjustment, the working roller's positive and negative bending roller and other adjustment plate types.

Six-stand tandem cold mill

The GLIMPPSE six-stand tandem cold mill Unit is based on the mature S-High (eighteen rollers) cold rolling technology. The six-stand tandem cold mill unit is a very competitive stainless steel cold rolling technology. The six-stand tandem cold mill unit is suitable for large quantities of steel with steel.

Keywords: cold rolling machine, cold rolling mill, steel industry