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Method for casting small-specification copper rod based on upward casting

A technology of small size, copper rod, applied in the field of casting, can solve the problems of low efficiency, high cost, long production time, etc., and achieve the effect of improving economic benefits, saving costs and improving production efficiency

Active Publication Date: 2012-07-25
白银有色西北铜加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using the up-drawing method to introduce small-sized copper rods with a diameter of 6mm to 7mm, most of them need to go through two processes, that is, first up-drawing and then extrusion. The production time is longer, the efficiency is lower, and the cost is higher.

Method used

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  • Method for casting small-specification copper rod based on upward casting
  • Method for casting small-specification copper rod based on upward casting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First adjust the temperature of the holding furnace body of the up-drawing furnace to 1118°C, and then raise the temperature of the holding furnace body of the up-drawing furnace to 1120°C at a rate of 2°C per 30 minutes; 2 racks of the crystallizer to the upper lead furnace body and baked for 30 minutes; the extruded copper lead rod 1 with a diameter of 5mm is inserted into the crystallizer 2 from the upper end of the crystallizer 2 baked in step 1, so that the copper lead rod 1 The protruding length from the lower port of crystallizer 2 is 40mm, and then insert mold 2 into the copper liquid, so that the tail end of the graphite protection sleeve in the crystallizer 2 is above the liquid surface of the copper liquid, and the tail end of the graphite protection sleeve is in contact with the copper liquid The distance between the surfaces is 1 / 3 of the total height of the crystallizer 2. Fix the crystallizer 2, clamp the copper lead rod by the existing method, and start t...

Embodiment 2

[0026] First adjust the temperature of the holding furnace body of the upper drawing furnace to 1116°C, then raise the temperature of the holding furnace body of the upper drawing furnace to 1120°C at a rate of 1°C per 30 minutes; 2 frames of the required crystallizers are baked for 25 minutes on the upper lead furnace body; the extruded copper lead rod 1 with a diameter of 4mm is inserted into the crystallizer 2 from the upper end of the baked crystallizer 2, so that the copper lead rod 1. The protruding length from the lower port of the crystallizer 2 is 30mm, and then insert the crystallizer 2 into the copper liquid, so that the tail end of the graphite protection sleeve in the crystallizer 2 is above the liquid surface of the copper liquid, and the tail end of the graphite protection sleeve is in contact with the copper liquid The distance between the surfaces is 1 / 3 of the total height of the crystallizer 2. Fix the crystallizer 2. Use the existing method to clamp the copp...

Embodiment 3

[0029]First adjust the temperature of the holding furnace body of the upper drawing furnace to 1117°C, and then raise the temperature of the holding furnace body of the upper drawing furnace to 1120°C at a rate of 1.5°C per 30 minutes; 2 racks of required crystallizers are baked for 28 minutes on the upper lead furnace body; the extruded copper lead rod 1 with a diameter of 4.5mm is inserted into the crystallizer 2 from the upper mouth of the baked crystallizer 2, so that the copper lead rod 1. The protruding length from the lower port of the crystallizer 2 is 35mm, and then insert the crystallizer 2 into the copper liquid, so that the tail end of the graphite protection sleeve in the crystallizer 2 is above the liquid surface of the copper liquid, and the tail end of the graphite protection sleeve is in contact with the copper liquid The distance between the surfaces is 1 / 3 of the total height of the crystallizer 2. Fix the crystallizer 2, clamp the copper lead rod by the exis...

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Abstract

The invention discloses a method for casting a small-specification copper rod based on upward casting. Firstly, the temperature of an upward casting holding furnace is adjusted to range from 1116 DEG C to 1118 DEG C and is increased to 1120 DEG C; and secondly, an extruded copper guide rod is inserted into a baked mold from an upper end opening and extends from a lower end opening of the mold, the mold is inserted into molten copper, the tail end of a graphite protection sleeve in the mold is positioned above the liquid level of the molten copper, the mold is fixed, the copper guide rod is clamped by an existing method, upward casting is started, when the small-specification copper rod to be cast comes out of the upper end opening of the mold, the upward casting temperature is adjusted to range from 1116 DEG C to 1118 DEG C, and the small-specification copper rod is cast. By the aid of the method, the small-specification copper rod with the diameter of 6-7mm can be directly cast from upward casting equipment, secondary extrusion is omitted, the oxygen content of the small-specification copper rod obtained by means of secondary machining is reduced, production efficiency is improved, and production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of casting, and relates to a method for continuously casting copper wire rods by adopting an upward drawing method, in particular to a method for leading small-sized copper rods based on the upward drawing method. Background technique [0002] The upward quotation method is a tube blank production method independently developed by my country in the mid-1980s. It is mainly used to produce oxygen-free copper rods. It has advanced technology, good product quality, low unit energy consumption, and flexible and diverse production varieties and specifications. , strong adaptability, no three wastes pollution, less investment and other characteristics, it is an ideal process for copper conductor and copper processing. It is especially suitable for the manufacture of copper pipes for construction, copper pipes for heating, and copper pipes for air-conditioning connections. However, when the small-sized copper rods w...

Claims

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Application Information

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IPC IPC(8): B22D11/14
Inventor 刘生伟李双龙邓予生张富堂张晓龙田魁顺
Owner 白银有色西北铜加工有限公司
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