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Views: 277 Author: Zora Publish Time: 2025-07-30 Origin: Site
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● What is aluminum profile extrusion?
● 1. Extrusion production process
>> (1) Mold design and manufacturing
>> (5) Stretching and straightening
>> (7) Artificial tempered/natural tempered (heat treatment)
● 2. Extrusion equipment and capabilities
Aluminum profile extrusion is a plastic processing method that presses heated aluminum alloy bars (i.e., cast bars) into the extrusion barrel and passes through a customized die outlet to form a profile with the desired cross-sectional shape.
According to product design requirements, solid profiles, hollow profiles, complex cross-section profiles, micro profiles, etc. can be produced.
Design molds according to drawings or customer samples
Molds made of high-speed steel or special alloy steel must have high wear resistance and high precision
Molds must be preheated before entering the machine to avoid thermal shock cracking
Heat the alloy cast rod to about 450℃~500℃
Control temperature uniformity to ensure good metal plasticity and avoid coarse grains
The cast rod is fed into the extrusion barrel and pressurized by a hydraulic extruder (common tonnage is 600T~3600T)
Aluminum flows out of the mold to form a continuous profile
The traction device pulls synchronously to ensure the straightness and surface quality of the profile
The extruded profile needs to be cooled quickly (air cooling, water mist cooling, etc.)
Controlling the cooling rate can affect the mechanical properties and aging state of the profile
The cooled profile is prone to certain internal stress and bending
Quantitative stretching through a stretching machine to release stress, correct deformation, and improve straightness
Fixed length cutting is performed according to order requirements, and the general tolerance can be controlled within ±0.5mm
The head and tail materials are removed and returned to the furnace for reuse
Common states are T5 and T6
Improve strength and hardness, enhance the wear resistance and load-bearing performance of the finished product
High-quality aluminum profile extrusion depends on advanced equipment and strict process control:
(1) Extruder: Common models include 600T, 1000T, 1800T, 2500T, etc., for different cross-sectional sizes and wall thickness requirements
(2) Automatic traction system: Improve extrusion efficiency and product surface quality
(3) Intelligent temperature control system: Accurately control the temperature of the casting rod and the mold to ensure the stability of metal flow
(4) Mold library and mold change system: Support rapid switching of multiple profiles
Aluminum profile extrusion is a key process that perfectly combines material performance with product shape.
Through scientific mold design, precise temperature control, standardized equipment operation and strict quality inspection, high-efficiency and high-precision profile production can be achieved.
High-quality extrusion technology is the basis for ensuring product performance and structural safety.
