Copper busbar is widely used in our daily life, the connection of various electrical appliances, and a lot of specifications, suitable for all walks of life. According to different application requirements, copper busbar manufacturers produce copper busbar in various ways. Copper busbar can be divided into rolling saw method, rolling - stretching method, profile rolling method, extrusion - stretching method, drawing method or horizontal continuous casting - rolling - stretching method. This article will introduce the process and characteristics of various production methods.

First, the rolling saw method

1. Process flow: The production flow of this process is: ingot heating - hot rolling - milling - blanking - cold rolling - annealing - pickling - cold rolling - sawing - corner treatment - finishing and straightening - cutting and fixing length - packaging and storage.

2. Process characteristics: the performance index of the copper busbar produced by this process can be well controlled, but there are problems of flying edge and sharp chip welt pressing. The corners are not rounded, the surface finish is not good, the width tolerance is large, and the production cost is high, so this production method is rarely used now.

Two, upward or horizontal continuous casting - rolling - drawing method

1. Process flow: The production flow of this process is up-drawing or horizontal continuous casting - cold rolling - annealing - pickling - drawing - finishing and straightening - fixed size cutting - packaging - storage.

2. Process characteristics: This production method has simple process and low production cost. But compared with other processes, the performance index is poor, the specification is limited, the efficiency is low, the capacity is small.

Three, rolling stretching method

1. Process flow: The production flow of this process is ingot heating - hot rolling - cold rolling - cutting - annealing - pickling - stretching - finishing and straightening - fixed size cutting - packaging - storage.

2. Process characteristics: the quality index of copper busbar produced by rolling - drawing method can be well controlled, and the production cost is low, but the cutting rough edge and tolerance are difficult to control.

Four, section rolling method

1. Process flow: The production flow of this process is: iron mold ingot - hot (warm) rolling - pickling - profile roughing - annealing - pickling - finishing rolled profile - finishing straightening - cutting fixed length - packaging - storage.

2. Process characteristics: the performance index of copper busbar produced by this process can be well controlled, and the rolling mill has many rolls, and the production cost is high.

Five, extrusion and stretching method

1. Process flow: The production flow of this process includes ingot heating, extrusion, stretching, annealing, pickling, stretching, finishing and straightening, fixed size cutting, packaging and storage.

2. Process characteristics: The copper busbar produced by extrusion and tensile method can ensure the bending property of 180, so its quality index can be well controlled. It has the advantages of simple process, high efficiency and large capacity, but the production cost is relatively high.