Aluminum core wire surface silicon plating technology

Abstract

The invention discloses an aluminum core wire surface silicon plating technology which comprises the steps of carrying out surface pretreatment, cleaning, drying, sputtering an aluminum nitride layer buffer layer, plating a silicon thin layer on the aluminum nitride layer buffer layer by evaporation, and carrying out annealing in an annealing furnace in a pure nitrogen atmosphere. Through sputtering the aluminum nitride layer buffer layer on the surface of an aluminum core wire, and then plating the silicon thin layer on the aluminum nitride layer buffer layer by evaporation, the aluminum core wire is compatible with the silicon thin layer very well, and the defect that lattices of metallic aluminum and silicon are mismatched is overcome; due to the silicon thin layer, the outer surface of the aluminum core wire is not liable to oxidize; when the aluminum core wire is connected with a copper wire, no electrochemical corrosion is generated, and a heating value is low; in addition, the structural design of the traditional power transmission wire is broken through, and the outer surface of the aluminum core wire is covered with a semiconductor layer and then is wrapped by an insulation layer, so that electric energy loss during power transmission is less, and even if the insulation layer is broken, no electric leakage or electric shock accident occurs. The aluminum core wire surface silicon plating technology has the advantages that the technological processes are simple, the cost is low, and the aluminum core wire surface silicon plating technology is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of aluminum-core wire preparation, in particular to a silicon-plating process on the surface of an aluminum-core wire. Background technique [0002] Compared with copper core wire, aluminum core wire has the following advantages: [0003] (1) The price of aluminum core wire is cheap: copper rod is 3.5 times the price of aluminum rod, and the proportion of copper is 3.3 times that of aluminum, so aluminum core wire is much cheaper than copper core wire, suitable for low-cost projects or temporary electricity. [0004] (2) Light weight of the aluminum core wire: the weight of the aluminum core wire is 40% of that of the copper core wire, and the construction and transportation costs are low. [0005] Although the price of the aluminum core wire is cheap, the aluminum core wire is easy to oxidize and reacts with oxygen in the air to quickly form an oxide film. When copper and aluminum are connected, galvanic c...

AI Technical Summary

Problems solved by technology

[0005] Although the price of the aluminum core wire is cheap, the aluminum core wire is easy to oxidize and reacts with oxygen in the air to quickly form an oxide film. When copper and aluminum are connected, galvanic corrosion will occur, and the joint is prone to heat, which limits the application of the aluminum core wire.

At the same time, the traditional structural design of direct contact between the aluminum core wire and the insulating jacket causes a large electrical loss on the contact section when transmitting electric energy. If the insulating jacket is damaged, electric leakage accidents are likely to occur