Foshan TOP Aluminum

09/06/2025

The cold bed equipment in the aluminum extrusion production line is the core link of the post-processing system for extrusion, mainly responsible for key tasks such as cooling, conveying, sorting, straightening, and cutting to length of aluminum profiles after high-temperature extrusion molding. It directly affects the dimensional accuracy, surface quality, and mechanical properties of the profiles. Its specific applications are as follows:
1、 Production line positioning and synergy
The cooling bed is located between the outlet of the extruder and the aging furnace, and is linked with the traction machine, online quenching system (air-cooled/mist cooled), and sawing equipment to form a complete rear processing line.
Connection function: Receive high-temperature profiles (about 400-500 ℃) output by the extruder and transition to the cooling station through the conveying system.
Rhythm coordination: The design of the material storage platform can buffer the speed difference between the front and rear processes, ensuring production continuity.
2、 Core application scenarios
Efficient cooling
Using natural air cooling or forced cooling (such as fan arrays) to quickly and uniformly reduce the temperature of the profile, avoid deformation, and improve subsequent straightening effects.
The cooling table is equipped with a high-temperature resistant conveyor belt (such as felt ring belt, resistant to 480 ℃), which synchronously achieves transmission and heat dissipation.
Flexible conveying and sorting
The multi-stage roller/belt system smoothly transfers profiles and automatically distributes them to different processing paths according to specifications.
Anti scratch design (such as felt rollers, synchronous belts) maximizes the protection of the surface smoothness of the profile.
Integrated straightening and sawing
The straightening machine eliminates extrusion bending deformation and ensures that the straightness of the profile meets the standard.
Linkage finished saw achieves high-precision fixed length cutting

06/06/2025

The cold bed equipment on the aluminum extrusion production line is the core component of the post-processing system for extrusion. It mainly undertakes key processes such as cooling, conveying, straightening, and cutting to length of aluminum profiles formed by high-temperature extrusion, ensuring the quality of profiles and production efficiency. Its core functions and features are as follows:
1、 Core functions
Cooling treatment: Receive high-temperature profiles (about 400-500 ° C) just from the exit of the extruder die, and uniformly reduce their temperature through natural air cooling or forced cooling, providing suitable conditions for subsequent straightening and sawing.
Profile conveying and sorting: Use conveyor belts or roller conveyor systems to smoothly transfer profiles, avoid surface scratches, and achieve separate management of profiles of different specifications.
Straightening and shaping: Integrated straightening machine system eliminates bending deformation generated during the extrusion process, ensuring that the straightness of the profile meets the standards.
Fixed length sawing: linked with the finished saw, it accurately cuts the cooled profile according to the set length.
2、 Equipment structure and composition
A cold bed is usually composed of the following modules connected in series:
Sliding conveyor: A roller conveyor with lifting function that receives the profiles output by the extruder and transfers them to the cooling platform.
Cooling table: A conveyor system consisting of multiple sets of conveyor belts/felt belts, which combines cooling and conveying functions (high-temperature felt belts can withstand 480 ° C).
Storage platform: a buffer area to coordinate the differences in the pace of the previous and subsequent processes.
Straightening and sawing station: including straightening machine, feeding device and finished sawing platform, to complete shaping and cutting.

27/05/2025

The control of profile size accuracy by cold bed equipment is crucial in aluminum extrusion production lines. By optimizing the cooling process, equipment configuration, and production management, the dimensional stability of profiles can be effectively improved. The specific methods are as follows:
Adopting a combined cooling mode of air cooling and mist cooling, differentiated temperature control is achieved through segmented cooling platforms. Priority should be given to using mist cooling for rapid cooling in the high temperature range (above 500 ℃), and switching to air cooling in the low temperature range (below 200 ℃) to prevent excessive cooling from causing stress imbalance inside the profile
Configure a variable frequency fan system to automatically adjust the wind speed according to the complexity of the profile section: simple sections use a wind speed of 3-5m/s, while complex multi cavity sections increase it to 6-8m/s, ensuring cooling uniformity deviation ≤ 0.5%
Integrated hydraulic servo straightening system for cold bed, combined with laser rangefinder for real-time monitoring of profile curvature. When a straightness deviation of ≥ 0.3mm/m is detected, dynamic straightening compensation is automatically triggered, and the stretching rate is controlled within the range of 0.8% -1.2%
Using graphite coated high-temperature rollers and lifting conveyor belts to reduce friction damage on the surface of profiles and avoid measurement errors caused by surface scratches during straightening
The servo driven flying saw system, combined with encoder positioning, can control the cutting length tolerance within ± 0.5mm. Reduce cutting vibration interference through aluminum chip recycling device, and synchronously optimize the saw blade speed (1800-2200r/min) to match the feed rate
The storage platform is equipped with an air cushion suspension device, with a stacking height of no more than 1.2m for profiles and a spacing of 50-80mm to prevent deformation of the cross-section caused by gravity compression

21/05/2025

Felt belt: installed at the outlet of the extruder, it rolls and transports high-temperature aluminum profiles (480-520 ℃) to prevent scratches.
Multi level conveyor belt: The first level needs to withstand high temperatures of 600 ℃ (industrial materials) or 500 ℃ (building materials), and the subsequent levels gradually cool down.
Post processing and transportation
Seamless circular conveyor belt: used for conveying aluminum profiles in cold bed production lines to ensure surface smoothness.
Time limited furnace protection: A double-sided protective felt strip covering the loading frame to prevent aluminum oxidation or adhesion at high temperatures.
Surface protection
Flat felt strip: laid in areas such as sliding rails to absorb residual heat from aluminum profiles and avoid mechanical damage
PBO High Temperature Resistant Seamless Ring: Specially designed for aluminum extrusion workshops, capable of withstanding temperatures up to 600 ℃.
Hardened felt sleeve: Suitable for rollers with different temperature requirements (such as 180 ℃, 480 ℃, and 600 ℃).

12/05/2025

Excellent high temperature resistance ‌ Kevlar felt can withstand ‌500℃‌ high temperature environment ‌, in the cold bed of aluminum extrusion machine, can statically cope with the continuous contact of high temperature aluminum, to avoid the material due to high temperature softening or deformation ‌.

07/05/2025

Material characteristics and temperature resistance performance
High temperature resistance level
Industrial high-temperature felt is divided into multiple levels of temperature resistance according to different materials: ultra-high temperature PBO felt can withstand 600 ℃ 48, ordinary high-temperature felt can withstand 500 ℃ 48, and medium low temperature felt can withstand 280 ℃ and 180 ℃ 48, respectively. This type of felt is usually made of high-temperature resistant fibers (such as silicone rubber, PBO fibers) or mixed materials, with a tight structure and strong deformation resistance.
Functional enhancement
By using a mixed material needle punching process and a special weaving structure, high-temperature felt combines wear resistance, tensile strength, and corrosion resistance, significantly extending its service life. After adding flame retardants to some products, they can still achieve fire-resistant and flame-retardant properties, effectively preventing the spread of fire

05/05/2025

The cold bed equipment in the aluminum extrusion production line is a key link to ensure the quality of profile forming and production efficiency. Its core functions and structural design are as follows:
Core functions and components
Functional positioning
Cold bed is mainly used for rapid cooling, conveying sorting, and preliminary straightening of aluminum profiles after extrusion. By controlling the cooling rate, it reduces profile deformation and ensures physical properties and dimensional stability.
Cooling method: Combining multiple modes such as air cooling, mist cooling, and high-pressure injection to meet the cooling needs of different alloys;
Automated process: integrating feeding, straightening, and sawing functions to reduce manual intervention.
Structural composition
Module Function Description Key Technical Features
The sliding machine transfers high-temperature profiles to the cooling table through roller lifting to avoid surface scratches. It is equipped with high-temperature resistant rollers (such as PBO material) and lifting slides to adapt to continuous production cycles
The cooling table adopts a conveyor belt (such as a high-temperature felt ring belt) to transport profiles, uniformly dissipating heat. It is equipped with a felt synchronous belt that can withstand high temperatures up to 600 ℃ and multi fan collaborative cooling
The storage platform buffers the cooled profiles and connects them with the subsequent straightening and sawing process chain transmission system for automatic positioning, improving the continuity of the production line
The sawing system realizes fixed length cutting with an accuracy of ± 1mm. The high rigidity saw blade is matched with PLC control to reduce aluminum chip residue

04/05/2025

04/05/2025

High temperature felt belts are mainly used in the cooling and conveying process of aluminum profiles in aluminum extrusion machines, with the core function of balancing cooling efficiency and surface protection.
1、 Functional characteristics
High temperature resistance performance
Using high-strength fiber materials such as PBO, Kevlar, Nomex, etc., with a maximum temperature resistance of 600 ℃, it is suitable for high-temperature transportation scenarios after aluminum extrusion (as initially introduced).
Structural design optimization
Belt type felt tape can reduce surface wear of aluminum profiles and maintain uniform spacing
Equipped with high-temperature resistant rollers (such as PBO material) and hydraulic lifting slide table design to reduce component wear and tear
Some equipment is equipped with a chain drive system and an automatic cooling fan to improve efficiency by 45%
2、 Materials and processes
PBO fiber ≤ 600 ℃ initially introduced in high temperature zone
Kevlar ≤ 500 ℃ mid section conveyor belt
Polyester fiber ≤ 300 ℃ end cooling zone

28/04/2025

Protect material surface quality ‌ Compared with traditional graphite materials, Kevlar felt is soft and pollution-free, which can effectively avoid scratches or black marks during the transmission of aluminum profiles in the cold bed, ensuring the finished surface finish

28/04/2025

Application of Squeezing Line Cold Bed Equipment
Cooling of aluminum profiles after extrusion molding
Cold bed equipment uses natural or forced air cooling to rapidly cool and shape high-temperature aluminum profiles (such as building profiles, industrial pipes, aerospace components), ensuring their physical properties and dimensional stability, and avoiding bending deformation caused by uneven cooling. For example, in the production of aluminum door and window profiles, the cooling bed can simultaneously complete the straightening and surface protection of the profiles, reducing subsequent processing steps.
Automated production process integration
The cold bed is linked with the traction machine, quenching system, and sawing equipment to achieve full automation of aluminum profiles from extrusion molding to cutting segmentation, improving production line efficiency. Jiangshun Technology's cold bed equipment is compatible with extruders below 2000T and supports large-scale continuous production
Key functions and technical characteristics
Simultaneous cooling and straightening: By adjusting the four column vertical structure and movable crossbeam, the bending of the profile is automatically corrected to reduce the scrap rate.
Precision sawing: Equipped with a pneumatic sizing system, the cutting accuracy reaches ± 0.8mm, meeting the high standard requirements of automotive parts and precision industrial profiles

26/04/2025

The core application of high-temperature felt in aluminum industry production
1、 Aluminum melting and high-temperature processing protection
Furnace lining and insulation layer
In high-temperature equipment such as aluminum melting furnaces and insulation furnaces, aluminum silicate fiber felt or high alumina ceramic fiber felt is used as the lining material, which can withstand the melting temperature of aluminum liquid (usually 700 ℃ -1000 ℃), effectively reducing heat loss and preventing damage to the furnace structure.
Characteristic advantages: low thermal conductivity (≤ 0.12 W/m · K), high temperature resistance (≥ 1350 ℃), ensuring long-term stable operation of the furnace.
High temperature aluminum liquid transportation protection
Lay high-temperature felt in the aluminum liquid flow channel and casting system to prevent aluminum liquid splashing and heat loss, while avoiding corrosion or adhesion caused by direct contact between metal and equipment.
2、 Aluminum processing equipment matching
Aluminum hot rolling and extrusion equipment
High temperature conveyor belt: Using high-temperature resistant felt belt as the conveying medium for aluminum plate and aluminum foil, it can withstand high temperature friction (≤ 800 ℃) during rolling or extrusion process, and protect the surface smoothness of the material.
Shock absorber pad: Install needle punched high-temperature felt at the bottom of the rolling mill roller and mold to cushion mechanical impact and reduce equipment wear.
Surface treatment process
In processes such as aluminum anodizing and spraying, high-temperature felt is used as an insulation layer or suspension chain seal for high-temperature ovens to prevent heat leakage and maintain temperature uniformity during the process