aluminum and aluminum alloy rod continuous casting and rolling production line

Features

The design concept of the fourth-generation aluminum rod continuous casting and rolling mill production line is to optimize and upgrade the equipment hardware to ensure long-term stable operation of the production line, reduce operating costs, economical, environmentally friendly and low-carbon, and produce aluminum and aluminum alloy rods of better quality. The fourth-generation four-wheel casting machine crystal wheel adopts H-shaped reinforced structure, which improves the service life of the crystal wheel. Using a drainage tube and a horizontal guide automatic pouring the molten aluminum into the mold cavity smoothly, without turbulence and the turbulence, the flow channel of the intermediate fort the inner aluminum surface oxide film is not destroyed, again reducing the intake of liquid aluminum Oxidation ensures the quality of aluminum rods; the rolling mill adopts 2 independent transmission racks + 10 integral transmission racks, and integrates the advantages of aluminum alloy rolling mills and ordinary aluminum rolling mills in strength, which improves the strength and use of vulnerable parts Life; the new lead rod adopts the conic tube roller water-pack lead rod forming system, patented product (patent number), no butter, no scratches, no rod blocking, economical, environmentally friendly, and pollution-free. It can be directly used for electrical aluminum rods. , Enameled wire and extruded tube, especially suitable for the production of aluminum and aluminum alloy rods. The production line can be electrically linked and matched in terms of casting speed, rolling speed, traction speed and take-up speed to ensure that the production line is synchronized and can be fine-tuned during operation, making the operation simple and convenient .

A , equipment use

This machine adopts continuous casting and rolling process to produce aluminum rods and aluminum alloy rods . The raw materials are pure aluminum ingots , electrolytic aluminum liquid or aluminum alloys , and the aluminum rods or aluminum alloy rods with diameters of 9.5mm and Ф12mm are produced .

2. Equipment composition

1. Equipment name: UL+Z-1600+255/2+10 aluminum rod continuous casting and rolling mill production line

2. The main components of the equipment: four-wheel casting machine, active front traction, rolling shear, active straightening device, frequency multiplier induction heating device, active feeder mechanism, 255/2+10 aluminum alloy rod continuous rolling mill , conic tube Roller water-packed lead rod coiling device (no oil lead rod, active rear traction) , plum blossom double frame rod retracting, rolling mill emulsion circulation device, rolling mill lubricating oil circulation device, production line electronic control system . (Note: A set of aluminum melting furnace, holding furnace and launder must be ordered separately. The cooling system outside the casting machine and the cooling system of the heat exchanger are provided by the user)

Three, simple process

1. Aluminum ingot → molten aluminum (aluminum alloy) → molten aluminum refining → sampling → heat preservation and standing → filtering → casting → cooling billet → active traction of billet shear before ingot delivery → (alignment) → (induction heating) → active Feeding into rolling → rolling → oil-free lead rod (quenching) → (after traction) → continuous winding rod → plum blossom double frame rod receiving → strapping → finished aluminum rod measurement → inspection → storage.

2, with a good molten aluminum or molten aluminum liquid (molten aluminum alloy) by a holding furnace through the flow channel, into the four wheel caster continuously cast area 150 0mm 2 of the ladder -shaped ingot. The ingots are fed into the rolling shears by active traction to cut the waste ingots,

(After straightening frequency induction heating temperature), the automatic feeding mechanism feeding trapezoidal ingots into rod rolling mill, the conic roller water type oil-free lead rod and continuous around the rod, the double stitch block.

Four , line main technical parameters selected

5. Technical description of aluminum alloy rod continuous casting and rolling production line

(1) Continuous casting machine

(2) Active front traction and rolling shear

The rolling shear is driven by an AC variable frequency motor, and the needle pendulum reducer decelerates. The two rollers of the rolling shear are equipped with two blades respectively for rolling and cutting, and the cutting length is about 700mm. Rolling shears are mainly used for cutting the ingots at the beginning of the production line before rolling and when the equipment fails to stop casting. The rolling shear is equipped with photoelectric positioning, so that the blade always stops at a certain position.

The active front traction is located in front of the rolling shear and is integrated with the rolling shear.

(3) Straightening device

There are five straightening wheels, the top two and the bottom three are misplaced.

(4) Frequency doubling induction heating device

For rolling aluminum alloy rods, the ingot temperature is required to be constant during continuous rolling to realize constant temperature rolling. Constant temperature rolling is a significant feature of rolled aluminum alloy rods.

It mainly includes induction heaters, intermediate frequency power supply cabinets, temperature measurement and temperature control systems, etc. The induction heater adopts a two-stage type, and there is a passive supporting drive roller between the sections. The temperature control system is composed of imported optical fiber thermometers, intelligent instruments and analog conversion systems. It can adapt to the process requirements of the heating temperature of the heat treatment before rolling of the aluminum alloy ingot: the maximum temperature rise is 80℃, and it is heated from 440℃-480℃ to 490℃-520℃; it is continuously adjustable to ensure the lower limit temperature of 510℃ for blooming.

( 5 ) Continuous rolling mill

( 6 ) Oil lubrication system ( double lubrication system for gearbox )

( 7 ) Emulsion lubrication system ( double cooling and lubrication system for aluminum rod rolling )

( 8 ) Conic tube roller water bag type lead rod loop forming device (without butter)

1. Conic tube roller water bag type lead integrated system (detailed description is attached)

2. Cooling water piping system (emulsion is used when producing ordinary aluminum rods)

3. Cooling and drying system

The cooling and drying system is located at the upper end of the cooling water pipeline system and is mainly used to blow dry the remaining water on the rod surface.

3. Active traction device

The device adopts dual active pinch, and the bomber adjusts the pressure. The motor drives one pinch roller to rotate through the V-belt drive, and at the same time drives the other pinch roller through two pairs of gears (synchronous), and the gear box is lubricated by organic oil.

5. Annular swing rod device

The rod penetrates the worm gear shaft under the traction thrust, and then passes through the spiral pendulum tube for pre-deformation, and then winds down in the trolley frame.

6. Circle trolley