Development process of erw pipe production technology

When the erw pipe blank is put into use, the quality inspection must be carried out one by one or one by one, and the system of “sending steel by furnace” is implemented. The so-called "feeding steel by furnace" system is to organize production, inspection, acceptance and shipment according to furnace No. 1 and batch number, and provide products to users.

To ensure the accuracy of the steel number, furnace number and batch number is an important means to ensure the quality of the products. For those steel pipes of important use, such as boiler and heat exchanger steel pipes, automobile transmission shaft steel pipes and steel pipes requiring heat treatment, it is more important. Because the performance of the product and the specification of the thermal process a, it depends largely on its chemical composition. Mixed batches may result in the tube being completely scrapped.

When feeding, it should be measured by weight, fill in the original record of the metering measurement, and log in to the account. All long cuts, short cuts, burrs, trims, and defective strips in production must be weighed and recorded. The measurement of raw materials and waste materials is the raw data for calculating the metal balance and the finished product rate, and the measurement should be piled up.

For the defective strips to be removed, the defects category, steel number, furnace number, number of rolls, weight, date of return and shifts should be indicated, and they should be stacked in a centralized manner.