2 Equipment Technical Description
2.1 Equipment Usage
The 1000T horizontal single action short stroke post feeding aluminum extruder is mainly suitable for forward extrusion processing of aluminum and aluminum alloy profiles and bars.
2.2 Composition of extruder equipment
The 1000T horizontal single action short stroke rear feeding aluminum extruder adopts a rear feeding method, consisting of the extruder body, hydraulic transmission and control system, extruder auxiliary equipment, automatic detection and control device, and electrical control system.
2.2.1 Structural type and characteristics of extruder body
The extruder adopts a fixed extrusion pad and a short stroke feeding structure. The main body is composed of pre-stressed composite frame, main oil cylinder, side cylinder, extrusion beam device, extrusion cylinder device, extrusion cylinder locking oil cylinder, mold frame moving device, main shear device, lower guide frame and other components.
The design of the extruder adopts computer three-dimensional finite element analysis software to optimize the structure design and analyze the stress field, displacement field, and temperature field of key components of the extruder, such as pre-stressed structural composite frame, main cylinder, and composite extrusion cylinder.
2.2.1.1 Pre stressed composite frame
The stress frame of the extruder body is composed of an integral front and rear beam, a tie rod, and a square compression sleeve, forming a closed prestressed composite frame. Using specialized hydraulic pre tensioning tools to apply overpressure tensile load to the entire length of the pull rod, while applying compressive stress to the pressure sleeve, so that the entire frame is in a stress pre tensioning state.
2.2.1.2 Main working cylinder/side cylinder
The main oil cylinder is a plunger type oil cylinder, fixed at the center of the rear beam. The plunger is guided by a copper guide sleeve inside the main oil cylinder, and is sealed using a combination of V-shaped rubber clamping rings. Two piston side cylinders are horizontally fixed on both sides of the main cylinder. The piston rod of the oil cylinder is guided by a copper guide sleeve inside the cylinder, and the bi-directional seal of the piston head is sealed with a Glay ring and wear-resistant guide belt. The piston rod is sealed with a V-shaped rubber clamp ring combination.
2.2.1.3 Squeeze cylinder locking cylinder
Four piston type extrusion cylinder cylinders are fixed on the upper and lower sides of the front beam. The piston rod of the oil cylinder is guided by a copper guide sleeve inside the cylinder, and the bi-directional seal of the piston head is sealed with a Glay ring and wear-resistant guide belt. The piston rod is sealed with a V-shaped rubber clamp ring combination.
2.2.1.4 Squeezing beam device
The extrusion beam device is a force transmission component composed of an extrusion beam, an extrusion pad, and an extrusion rod clamping device. It is formed as a whole with the main plunger and side cylinder piston rod through fasteners such as screws and round nuts. The squeezing beam device conducts horizontal squeezing motion through the horizontal and vertical guide rail surfaces set on the prestressed square sleeve, and the squeezing rod moves upward to free up a feeding position during the aluminum rod feeding. When the squeezing rod is in the squeezing state, the squeezing rod seat is compressed by the squeezing rod seat pressing oil cylinder on the squeezing rod cushion block to ensure the concentricity of the squeezing rod and the inner hole of the squeezing cylinder. When the squeezing rod seat moves up and down, the locking oil cylinder of the squeezing rod seat releases and creates a movement gap between the squeezing rod seat and the squeezing rod cushion block, and the copper block ejected from the squeezing rod seat slides and guides.
2.2.1.5 Squeezing cylinder device
The extrusion cylinder component is fixed in the center of the extrusion cylinder shell using a three key positioning method, and the extrusion cylinder shell and the locking oil cylinder piston rod are connected together through a piston rod locking nut. The extrusion tube device is guided by horizontal and vertical guide rails set on the prestressed square sleeve, and an external inclined surface is provided on the prestressed square sleeve above to ensure the stability of the extrusion tube during operation. The heating of the extrusion cylinder adopts a direct insertion resistance heating wire heating method, and two thermocouples measure the temperature of the inner lining of the extrusion cylinder and feedback it to the temperature controller on the operating platform for control. There is insulation material added between the extrusion tube component and the extrusion tube shell.
The extrusion cylinder component is made of hot working die steel.
Ingot specifications
(Cold state) |
Ingot diameter: |
Φ127(0/-2) mm |
| |
Ingot length |
300~700mm |
| |
Diameter X length |
Φ280/280mm |
Mold specifications
Squeezing cylinder |
internal diameter |
Φ132mm |
| |
length |
750 mm |
specifications
|
diameter |
Φ160mm |
| |
width |
180 mm |
| Discharge port size |
The length of the billet is 600mm, from the unloading of the main cylinder to the end of the exhaust |
18+5% sec |
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