Round edge transformer aluminum foil strip production proces

Jun 22, 2023

Round Edge Transformer Aluminum Foil Strip Production Process

The current round edge transformer aluminum foil strip are mainly 1060, 1070, 1050, 1350, high and low voltage winding is mainly used in dry type transformer as conducting material, product thickness of 0.2--3mm, width of 100mm---1000mm strip, the inner diameter is 305mm, 405mm and 505mm, the strip is 1200mm in diameter, with extended tensile strength drink, conductivity rate.

The current round edge transformer aluminum foil strip production process normally are: rolling, cold rolling, annealing process, shear. And compareing with ordinary aluminum production, its characteristic is high precision, such as the aluminum strip surface quality, burr curling and many other technical requirements are very high, to reach a certain conductivity. Due to the small quantity, variety, specification and complexity of the order, it is difficult to realize scale. The existing production facilities and inspection methods of Aluminum Co., Ltd. can basically realize the production of this product.



Production process flow of round edge transformer aluminum foil strip :

Cast rolling blank ---- cold rolling - finishing straightening - slitting slitting - edge treatment - annealing.

1) The casting rolling process adopts 1070 aluminum alloy, the specification is 7.0*961mm, the grain size is 1, and the surface quality is good

2) Cold rolling process control, rolling pass is 3, from 7.07---4.2---2.8---1.9,

Good quality record.

3) Slitting process. Strip to cold rolled products, tolerance +/-0.2mm

4) Edge processing, to achieve approximate arc edge, burr free.

5) Annealing process, the furnace temperature is 480 degrees, the holding time is 8h, the two furnace temperature is 420 degrees, and the holding time is 4h.

6) Test. Tensile strength, thickness tolerance, width tolerance, surface quality, burr free, electrical conductivity are qualified.

7) Packaging, vertical or horizontal packaging, or wooden box packaging. 【Round edge transformer aluminum foil strip】

At present, Aluminum Co., Ltd. specializing in the production of aluminum foil for arc side transformer, has won the praise of the industry, a steady stream of orders.

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