Aluminum strip for transformer

Jan 11, 2023

Copper strip has always been a key raw material for the manufacture of transformer windings. At present, the domestic demand for copper coils for transformers is about 1.1 million tons. However, due to the high prices of copper strips in recent years, many transformer manufacturers have replaced copper strips with aluminum strips that are light in weight, low in price, and similar in quality to copper strips in order to reduce costs and improve market competitiveness. This is why aluminum strip for transformer is getting more and more applications in the industry.

At present, the aluminum strip for transformer product grades mainly include 1060, 1050, 1070, etc., which are mainly used in the high and low voltage windings of dry-type transformers as conductive materials. The thickness of the product is 0.2--3mm, the width is 100-1000mm, the inner diameter is 300-500mm, and the maximum outer diameter is 1000mm. It requires certain tensile strength, elongation and electrical conductivity.

i Aluminum uses the production process of casting billet, cold rolling, shearing and annealing, with high precision. The aluminum strip for transformer has good surface quality, no burrs, neat crimping, and high conductivity. Although each manufacturer has small batches, multiple varieties, and complex specifications, we have formed large-scale production with sufficient material preparation, achieving the goal of 100% product storage qualification rate and more than 95% customer satisfaction. At present, the sales volume of this product continues to rise, and mass and stable production has been achieved.