Large diameter copper casting steel wire continuous hot-dipping tin preparation method

Abstract

The utility model relates to a preparation method for continuous hot dip tin using big diameter copper casting steel wire, which is mainly characterized in the following procedures. (1) Thick drawing: the high quality low carbon steel wire rod is drawn into coiled wire rod using a wire drawing machine; (2) Copper casting: the coiled wire rod is dried and heated in the heating furnace and then casts into a copper clad steel coiled wire rod roughcast in the power frequency copper casting furnace; (3) Thin drawing: the copper clad steel coiled wire rod roughcast is drawn into single strand copper casting steel wire by the wire drawing machine; (4) Heat treatment: the coiled wire rod is loaded to be heated in the vacuum annealing oven to get a single strand long length soft copper casting steel core wire; (5) Hot dip tin: dip the copper casting steel core wire which has been marinated in the zinc chloride solution into the tin liquid subsequently to get a single strand big diameter grounding steel wire. The hot dip tin copper casting grounding steel wire prolongs the service life compared with the prior copper casting steel core ground line because the dip tin copper casting grounding steel wire prolongs the complete corruption time of tin.

Description

Technical field: [0001] The invention relates to the technical field of grounding wires composed of three metals including tin, copper and steel, in particular to a method for preparing large-diameter cast copper steel wires by continuous hot-dipping tin. Background technique: [0002] At present, hot-dip galvanized steel is usually used as the grounding wire in our country. Because the zinc layer of hot-dip galvanized steel is thinner and the zinc is more active, the corrosion resistance period in coastal chemical enterprises is relatively short. Pure copper is usually used as the grounding wire in foreign countries, but because copper is more expensive and the electrode potential of copper is higher than that of steel, it is easy to cause electrochemical corrosion to other active underground metal pipes, and the connection and welding cost is relatively high, so it has not been obtained in my country. Promotional use. [0003] In recent years, copper-clad steel grounding w...

AI Technical Summary

Problems solved by technology

Pure copper is usually used as the grounding wire in foreign countries, but because copper is more expensive and the electrode potential of copper is higher than that of steel, it is easy to cause electrochemical corrosion to other active underground metal pipes, and the connection and welding cost is relatively high, so it has not been obtained in my country. promotional use

[0003] In recent years, copper-clad steel grounding wires made of copper's high conductivity and excellent corrosion resistance have been gradually promoted, but this wire still fails to solve the problem of electrochemical corrosion of other underground metal pipelines