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A method for producing tellurium bronze rods using a horizontal continuous casting process

A production method, a technology of horizontal continuous casting, applied in the field of smelting and casting, can solve the problems not involving tellurium bronze rods, etc., and achieve the effects of eliminating the extrusion process, short process flow and high yield

Active Publication Date: 2020-05-22
JINTIAN COPPER GROUP CORP NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current relevant reports, none of them involve the method of producing tellurium bronze rods by horizontal continuous casting

Method used

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  • A method for producing tellurium bronze rods using a horizontal continuous casting process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] According to the composition of 0.65% Te, 0.01% P, 0.008% Mg, 0.035% rare earth, and the balance of Cu, the batching amount for each furnace is 280kg;

[0038] First put the red copper row in the 300kg melting furnace (intermediate frequency furnace), after melting, cover the surface with 8-10 cm charcoal (drying), and keep warm for more than 0.5h;

[0039] The copper liquid is transferred into the holding furnace, and charcoal is added to cover it at the same time, with a thickness of more than 10 cm, and then the phosphor-bronze master alloy wrapped with copper foil (phosphorus accounts for 16wt%) and magnesium block are added to carry out degassing and purification, refining and degassing Finally, put pure tellurium (packaged with copper foil, Te>99.5wt%) into the copper liquid, and press the tellurium into the copper liquid with a graphite cover to melt. The above-mentioned steps are all kept for 15 minutes, and the temperature is controlled at 1200 ° C;

[0040] Afte...

Embodiment 2

[0043] According to the composition of 0.55% Te, 0.01% P, 0.01% Mg, 0.03% rare earth, and the balance of Cu, the batching amount for each furnace is 280kg;

[0044] First, put the red copper row in the 300kg smelting furnace. After melting, cover the surface with 8-10cm charcoal (drying), and keep it warm for more than 0.5h;

[0045] The copper liquid is transferred to the holding furnace, and charcoal is added to cover it at the same time, with a thickness of more than 10 cm, and then the phosphor-bronze master alloy (phosphorus accounts for 18wt%) and magnesium blocks wrapped in copper foil are added to carry out degassing and purification, refining and degassing Finally, put pure tellurium (packaged with copper foil, Te>99.5wt%) into the copper liquid, and press the tellurium into the copper liquid with a graphite cover to melt. The above steps are all kept at 15 minutes, and the temperature is controlled at 1230 ° C;

[0046] After the composition of the copper liquid is a...

Embodiment 3

[0049] According to the composition of 0.45% Te, 0.05% P, 0.01% Mg, 0.025% rare earth, and the balance of Cu, the batching amount for each furnace is 280kg;

[0050] First, put the red copper row in the 300kg smelting furnace. After melting, cover the surface with 8-10cm charcoal (drying), and keep it warm for more than 0.5h;

[0051] The copper liquid is transferred into the holding furnace, and charcoal is added to cover it at the same time, with a thickness of more than 10 cm, and then the phosphor-bronze master alloy (phosphorus accounts for 14wt%) and magnesium blocks wrapped in copper foil are added to carry out degassing and purification, refining and degassing Finally, put pure tellurium (packaged with copper foil, Te>99.5wt%) into the copper liquid, and press the tellurium into the copper liquid with a graphite cover to melt. The above steps are all kept warm for 15 minutes, and the temperature is controlled at 1250 ° C;

[0052] After the composition of the copper li...

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Abstract

The invention relates to a method for producing a tellurium bronze rod by a horizontal continuous casting process. The method comprises the steps that ingredients comprise, by weight, 0.4-0.7% of Te,0.004-0.012% of P, no more than 0.01% of Mg, no more than 0.035% of rare earth, and the balance Cu; raw materials are melted in a melting furnace and a holding furnace correspondingly, and the smelting temperature is 1150-1300 DEG C; the raw materials after being melted are subjected to drawing and pulling to obtain a intermediate product tellurium bronze rod, the drawing and pulling temperature is 1150-1300 DEG C, the traction speed is 200mm / min-300mm / min, and the intercept is 4-8mm; and the intermediate product tellurium bronze rod is subjected to peeling, extending, annealing and press-polishing straightening in sequence to obtain a finished tellurium bronze rod. According to method for producing the tellurium bronze rod by the horizontal continuous casting process, tellurium is added to the holding furnace, at the same time, the tellurium is subjected to protection, the burning loss of the tellurium is reduced, the quality of the surface of the rod by the continuous casting is perfect, composition is uniform, and a required workblank is obtained directly without the need for extrusion operation; and the horizontal continuous casting process is beneficial for reducing the production cost, capable of improving the high-efficiency of production, and capable of making up for the blank of the tellurium bronze rod produced by the horizontal continuous casting process.

Description

technical field [0001] The invention relates to the field of smelting and casting, in particular to a production method of a tellurium bronze rod, which adopts a horizontal continuous casting process. Background technique [0002] Copper tellurium is a kind of bronze, and its main alloy metals include Te, P, and Cu, which are used to fill the blank of copper alloy compact processing materials. Tellurium-copper alloy materials take into account the excellent easy-cutting performance and excellent electrical and thermal conductivity, as well as corrosion resistance and electrical ablation resistance, good cold and hot processing performance, and can be forged, cast, extruded and drawn, punched Molded. The products can be processed into plates, sheets, rods, wires, tubes and other profiles and various profiles, which can well meet the needs of my country's automobile industry and the rapid development of the electronics industry for copper alloys with high electrical conductiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/14B22D11/12C22F1/08C22C1/02
CPCB22D11/12B22D11/143C22C1/02C22F1/08
Inventor 欧阳好巢国辉裘桂群李正
Owner JINTIAN COPPER GROUP CORP NINGBO
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