Cold-formed Steel Profiles

Cold-formed Steel Profiles is a steel with various cross-sectional shapes produced by cold-formed forming process.It is widely used in many fields such as construction,machinery manufacturing,and automobile industry.The following is a detailed introduction for you:

Definition and production process

Definition:Cold-formed Steel Profiles is a steel with hot-rolled or cold-rolled strip steel as the blank,which is gradually bent into various specific cross-sectional shapes by a set of continuously arranged forming rollers at room temperature.Because it is processed and formed in a cold state,the organizational structure and performance of the material are optimized,making it have higher strength and precision.

Production process

Uncoiling:The coiled strip steel is placed on the uncoiling machine,and the strip steel is unrolled by the rotation of the uncoiling machine.In this process,it is necessary to control the uncoiling speed and tension to prevent the strip steel from wrinkling or breaking.

Leveling:The unrolled strip steel may have a certain degree of unevenness.It is leveled by the leveling machine to eliminate the defects such as wavy and curved strip steel produced during rolling and transportation,and ensure that the strip steel can enter the subsequent forming process smoothly.

Forming:This is the key link in the production of cold-formed steel.The flattened strip enters the cold-bending forming unit and is gradually bent into the required cross-sectional shape under the action of multiple sets of rollers.The design and arrangement of the rollers are customized according to the cross-sectional shape and size of the steel.Through precise rolling,the strip is gradually deformed into a cold-bent steel that meets the requirements.

Cutting:According to the set length,the continuously formed cold-bent steel is cut using a cutting machine to obtain the finished product of the required length.There are many cutting methods,such as flying saw cutting,punching shear cutting,etc.Different cutting methods are suitable for different steel specifications and production speed requirements.

Surface treatment(optional):In order to improve the corrosion resistance and aesthetics of cold-bent steel,it is sometimes subjected to surface treatment,such as galvanizing,painting,spraying,etc.Galvanizing is a common surface treatment method.By plating a layer of zinc on the surface of the steel,it can effectively prevent the steel from rusting.

Features

Diverse cross-sectional shapes:Various complex cross-sectional shapes can be produced,such as channel steel,angle steel,Z-shaped steel,C-shaped steel,square tube,rectangular tube,etc.,and non-standard cross-sectional shapes can be customized according to the special needs of users to meet the structural design requirements of different projects and products.

High dimensional accuracy:Since cold-bending is a process of precisely controlling the forming process through rollers at room temperature,cold-bent steel has high dimensional accuracy,which can effectively reduce the workload of subsequent processing and improve production efficiency.For example,the wall thickness deviation of cold-bent steel can be controlled within a small range,and the tolerance of the cross-sectional size is relatively stable.

High material utilization rate:During the production process,the strip steel is continuously bent and formed,and there is less waste of materials.Compared with some traditional steel processing methods,such as casting and forging,cold-bent steel can better utilize raw materials and reduce production costs.

High strength:During the cold-bending process,the steel undergoes cold work hardening,which improves its strength and hardness.Compared with hot-rolled steel of the same material,cold-bent steel can withstand greater loads at the same weight,or thinner steel can be used when bearing the same load,thereby achieving a lightweight design of the structure.

High production efficiency:The production process of cold-bent steel can be automated and continuous,with a fast production speed,which can meet the needs of large-scale production.At the same time,due to the relatively simple forming process and short production cycle,it can respond quickly to market demand.

Application fields

Construction industry

Steel structure buildings:Cold-formed Steel Profiles is widely used in roofs and wall purlins of light steel buildings,such as C-shaped steel and Z-shaped steel.They have good bearing capacity and installation convenience,can effectively reduce the weight of buildings,and improve the space utilization rate of buildings.

Building enclosure structure:Cold-formed Steel Profiles such as square tubes and rectangular tubes are often used to make door and window frames,curtain wall keels,etc.of buildings.They have high dimensional accuracy and good surface quality,which can meet the requirements of aesthetic appearance and structural stability of buildings.

Machinery manufacturing industry

Conveying equipment:In conveying equipment such as belt conveyors and chain conveyors,cold-formed steel is often used as racks and guide rails.Its high strength and good straightness can ensure the stable operation of conveying equipment.

Agricultural machinery:Some parts such as tractor frames and harvester frames are made of cold-formed steel,which uses its high strength and light weight to improve the performance and operating efficiency of the machinery.

Automobile industry

Body structure:Some frame parts of automobile bodies,such as longitudinal beams and cross beams,are made of cold-formed steel.By optimizing the cross-sectional shape and material properties,the vehicle body can be lightweight while ensuring the strength and safety of the vehicle body,thereby reducing the fuel consumption and emissions of the vehicle.

Carriage manufacturing:Cold-formed Steel Profiles is used to make the frames and columns of truck compartments,which can improve the strength and durability of the compartments and facilitate installation and disassembly.

Other fields

Warehouse shelves:In the warehousing and logistics industry,cold-formed steel is one of the main materials for making shelves.Its diverse cross-sectional shapes and high-strength characteristics can meet the storage needs of different types of goods and provide a stable and reliable shelf structure.

Power towers:Some small power towers or communication towers are made of cold-formed steel.The appropriate cross-sectional shape can be designed according to the force characteristics of the tower,and the manufacturing and transportation costs can be reduced while ensuring the safety of the structure.

Common types and uses

C-shaped steel:The cross-section is C-shaped and has good bending resistance.It is often used in purlins on building roofs and walls to support roof panels and wall panels;it can also be used for beams and columns of simple steel structures.

Z-shaped steel:The cross-sectional shape is similar to Z.Compared with C-shaped steel,Z-shaped steel has better lap performance when the roof slope is large,and can effectively prevent water leakage.It is often used for light steel roof purlins with certain slope requirements.

Channel steel:The cross-section of channel steel is groove-shaped,and it is divided into ordinary channel steel and light channel steel.In construction projects,it is often used for beams,columns and platform frames of steel structures;in machinery manufacturing,it can be used as a supporting structural member of equipment.

Angle steel:There are equal-leg angle steel and unequal-leg angle steel.Angle steel is widely used in construction,machinery,power and other industries,such as making steel structure connectors,support parts,and tower materials for power towers.

Square tube and rectangular tube:The cross-sectional shape of square tube and rectangular tube is regular and has good mechanical properties.In the construction industry,it is used for building structures and decoration projects;in machinery manufacturing,it can be used as a mechanical frame,conveying pipeline,etc.;in automobile manufacturing,it is often used for body frames and parts.