Composite strip manufacturing method and rewinding equipment

Abstract

The invention provides a manufacturing method of a composite strip and rewinding equipment. The manufacturing method of the composite strip comprises the following steps that A, the composite strip is uncoiled on an uncoiling machine; B, the uncoiled composite strip penetrates through a clamping and conveying roller, and the clamping and conveying roller is utilized for clamping the composite strip; C, the clamping and conveying roller is started for strip penetrating, and the head of the composite strip is fed into a coiling machine; D, the coiling machine is started for rewinding the composite strip; E, an upper roller of the clamping and conveying roller is lifted up, and a pressing roller is utilized for pressing the composite strip. By using the manufacturing method of the composite strip and the rewinding equipment, unit manufacturing cost of the aluminum / steel composite strip can be effectively reduced, the production period can be shortened, and production efficiency can be improved; meanwhile, oil dirt on the surface of the aluminum / steel composite strip can be reduced obviously, and product quality is improved, which is beneficial for improving market competitiveness of the composite strip.

Description

technical field [0001] The invention mainly relates to the technical field of processing strips such as aluminum / steel composite strips, in particular to a manufacturing method and rewinding equipment for composite strips. Background technique [0002] With the deepening of people's awareness of energy saving and emission reduction, the cooling system of thermal power generation mostly adopts air cooling technology. The cooling methods of the air cooling unit include direct cooling and indirect cooling. Among them, the indirect cooling investment is large, the direct cooling investment is small, and the cost of direct cooling input is lower than that of indirect cooling. Moreover, the air-cooling unit using direct cooling is connected together by welding steel pipes and aluminum alloy fins, so the air-cooling unit using direct cooling has a better heat dissipation effect. However, the direct cooling unit uses aluminum / steel composite tubes to connect with aluminum alloy fi...

AI Technical Summary

Problems solved by technology

[0005] 1. When the aluminum / steel composite strip is cold-rolled, due to the limitation of the uncoiling tension and the winding tension, the strip thickness of the aluminum / steel coil at the tail of the cold rolling mill is too large, and the composite performance is poor, about 10- The 15-meter composite strip needs to be cut off, resulting in a decrease in composite yield

[0006] 2. The cold rolling process of composite steel strip has high energy consumption, large machine loss, and a large amount of cold rolling oil consumed in the cold rolling process, and the processing cost is about 300 yuan / ton

Increased process difficulty and reduced production efficiency

In addition, the cleaning solution needs to be replaced regularly, which virtually increases the processing and manufacturing costs of the composite strip.

[0009] 2. Due to the high coiling tension of the strip when cleaning the tail, it is impossible to evaporate the uncleaned oil on the surface of the steel strip through long-term heat preservation at a certain temperature during the subsequent annealing process

Caused the reduction of the surface quality of the steel strip, which is not conducive to improving the product quality

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