[China Aluminum Network] The scrap rate of aluminum ingots is a crucial factor for aluminum companies. It directly affects the economic benefits of the company. For this reason, the adoption of measures to reduce the scrap rate of aluminum ingots is an issue that has been deeply studied by various aluminum electrolysis companies in recent years. Reason analysis The failure of the ingredients is the main factor for producing waste products. The analysis of the five aspects of personnel, batching methods, equipment, raw materials, and measurement has been conducted, and the main reasons for unqualified ingredients have been discovered. 1. The quality of primary aluminum itself fluctuates. In actual production, the content of primary iron such as iron and silicon is not the same for each package of raw aluminum. This requires the ingredient personnel to have the ability to analyze the quality of each package of primary aluminum, so that the ingredients can be adjusted to suit the package conditions. The weight of the elements. Make reasonable ingredients. 2. Ingredients lack professional technical training for ingredients. In the lack of training for the ingredient personnel, the lack of understanding of the importance of the ingredients has led to a lack of responsibility for the ingredients. 3. Add material while casting. Because there is no institutional constraint in advance. In order to save time, some foundry workers often take cast-side feeds, which results in a significant decrease in quality for finished products. 4. Inappropriate calculation methods and methods of ingredients. Because there is no uniform calculation method, the calculation methods and methods of each person of the ingredients are different, and there are oral calculations, estimates, ground calculations, etc., and they are not uniform in the exact value of the decimal. The main measures to reduce the scrap rate of aluminum ingot 1. According to the reason that the quality of primary aluminum itself fluctuates greatly, the original aluminum dynamic change curve is made to provide reference for ingredients. 2. Technical training Special batching technical training is provided for all batching personnel, so that each batcher can master the batching technology and can use the correct ingredients calculation method for the ingredients, so as to lay the foundation for improving the batching rate. 3. Establish a quality management system
