Production method of conducting copper bars for bus duct with large flakiness ratio

A production method and technology for bus ducts, which are applied to open busbar installation, circuits, electrical components, etc., can solve problems such as environmental pollution, long time, and poor product quality, and achieve the effect of improving the working environment and avoiding the pickling process.
CN101916624AInactive Publication Date: 2010-12-15浙江力博实业股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江力博实业股份有限公司
Publication Date
2010-12-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a production method of conducting copper bars for a bus duct with a large flakiness ratio, belonging to the technical field of processing of non-ferrous metals. The production method is characterized by comprising the following steps of: upward continuously casting oxygen-free copper bars, continuously extruding copper bar billets, rolling, annealing, drawing, checking and packaging. By adopting the continuous extrusion technology to produce the copper bar billets, the continuous production can be realized, and the weight of each roll of copper bar billets can reach more than 3 tons. Moreover, because the copper bar billets are produced in a roll shape, the defect of cutting the head and the tail of each copper bar in the traditional production process is avoided, and the yield of the product reaches more than 90%. Meanwhile, by reasonably setting continuous extrusion process parameters, rolling rate and the like, the invention effectively improves the quality of the product and has the advantages of high purity, low oxygen content, high conductivity, excellent surface quality and the like. The product is detected to show that the content of Cu and Ag is greater than or equal to 99.97%, the content of O is less than or equal to 10ppm, and the conductivity is 98-101% according to the IACS.
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Description

Technical field:

[0001] The invention belongs to the technical field of non-ferrous metal processing, and in particular relates to a production method of a conductive copper bar of a busway with a large width-thickness ratio. Background technique:

[0002] Because of the advantages of safety and reliability, large capacity, small size, short design and construction period, series matching, convenient assembly and disassembly, and long service life, busway is suitable for power supply in large shopping malls, exhibition halls, gymnasiums, airports and high-rise buildings. Bus duct is generally composed of protective shell, conductive bar, insulating material and related accessories. The product specification of bus duct conductive copper bar is obviously different from that of switchgear conductive copper bar. The width of bus duct conductive copper bar is generally above 180mm. Its aspect ratio is generally greater than 20, such as 180mm×6.3mm, 200mm×7.1mm, 250mm×10mm, etc. ...

Claims

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