Copper and iron alloy for producing soldering bit and production technology thereof

Abstract

The invention discloses a copper and iron alloy for producing a soldering bit and a production technology thereof. The technology comprises the following steps: preparing the following raw materials in weight percentage: 47.35-63.15% of copper and 36.85-52.65% of pure iron powder; adding prepared copper into a smelting furnace and smelting the copper into a liquid state at a high temperature; adding part of pure iron powder into the smelting furnace, continuously smelting and uniformly agitating the mixture; detecting the weight percentage of the iron in the copper and iron alloy in the smelting furnace by a spectrograph, adding the rest of pure iron powder while detecting, continuously smelting, and stopping adding pure iron powder until the iron content in molten copper and iron alloy reaches 36.85-52.65%; after the temperature of the copper and iron alloy reaches a refining temperature, discharging the copper and iron alloy out of the furnace, and molding through casting; hot-rolling the copper and iron alloy molded through casting into an alloy bar and processing the alloy bar into a soldering bit finished product. The alloy only comprises copper and pure iron powder, electroplating processing is not required, and pollution to the environment is reduced. Meanwhile, the heat conductivity of the soldering bit and the tin loading smoothness are greatly improved, the service life of the soldering bit is prolonged, and the production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of soldering iron tip production, in particular to a copper-iron alloy for producing a soldering iron tip and a production process thereof. Background technique [0002] The soldering iron tip is the key component of the electric soldering iron or soldering station, and it is an important part that affects the soldering effect and service life. During the soldering operation, the soldering iron tip is in direct contact with the tin material and is always in a high temperature state of 360-420 degrees. At present, the industry generally implements the EU ROHS directive. After the introduction of lead-free solder, the working temperature is as high as 420-480 degrees. Therefore, higher requirements are put forward for the high temperature resistance, oxidation resistance and corrosion resistance of the soldering iron tip. The traditional method of producing soldering iron tips in the industry is that copper r...

AI Technical Summary

Problems solved by technology

The traditional method of producing soldering iron tips in the industry is that copper rods are machined into copper billets, and then processed into copper substrates, and then undergo a series of electroplating treatments such as iron plating, nickel plating, and chrome plating, and finally make soldering iron tips. Among them, The quality of the iron plating will directly affect the quality of the soldering iron tip. If the iron layer is too thick, it will cause poor thermal conductivity of the soldering iron tip, poor soldering, and sharpening, which will lead to poor solder joints such as virtual soldering and false soldering; If the layer is too thin, it will cause the tip of the soldering iron to quickly oxidize, corrode, and even perforate and break the tip during high-temperature work.

This production process not only increases the production cost, but at the same time, the frequent replacement of the soldering iron tip reduces the work efficiency, which has become a recognized problem in the industry; moreover, the environmental pollution caused by electroplating has always been an urgent problem to be solved in the industry

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