When using ERW billet, quality inspection must be carried out one by one, and the system of "feeding steel through furnace" must be implemented. The so-called "furnace feeding" system organizes production, inspection, acceptance and shipment according to No. 1 furnace and batch number, and provides products to users.


In order to ensure the accuracy of steel number, furnace number and batch number are important means to ensure product quality. It is more important for steel pipes for important purposes, such as boiler and heat exchanger pipes, automobile transmission shaft pipes and steel pipes requiring heat treatment. Because of the performance of the product and the specification of heat treatment, it largely depends on its chemical composition. Mixed batches may lead to complete abandonment of management.


When feeding, it should be measured by weight, fill in the original record of measurement, and log in to the account. All long cut, short cut, burr, decoration and defective strips in production must be weighed and recorded. Raw materials and waste measurements are raw data for calculating metal balance and yield, and should be measured.


For the defect strips to be removed, the defect category, steel number, furnace number, roll number, weight, return date and shift should be marked, and should be stacked centrally.