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Sulfur-copper bar production method

A production method, copper rod technology, applied in the production field of non-ferrous metal materials, can solve the problems of high energy consumption, low production efficiency, long processing process, etc., and achieve the effect of short process flow and excellent performance

Inactive Publication Date: 2018-01-05
江苏特尔维斯智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional processing methods of sulfur copper rods are mainly ingot casting-hot extrusion-pickling-finishing-stretching-finishing, etc. The traditional processing process is long, energy-consuming, and production efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] A kind of production method of sulfur copper bar, comprises the following steps:

[0018] 1) Upward continuous casting of copper rods: smelting and upward continuous casting in the smelting device, covered with charcoal and graphite scales, using a traction unit to continuously cast copper rods; the temperature of the melting furnace is 1100 ° C, and the holding furnace The temperature is 1100°C, the diameter of the upward continuous casting copper rod is 45mm, and the upward continuous casting speed is 200mm / min; the copper rod contains 0.2% sulfur, 0.002% phosphorus, 0.1% selenium, and 0.1% antimony; Contains two elements such as silver and niobium at the same time, and the contents of the two elements are both 0.002%.

[0019] 2) Milling: Milling the copper rod obtained in step 1), the milled size of the copper rod is 0.5mm.

[0020] 3) Continuous rolling: the copper rod obtained in step 2) is used as raw material, and the copper rod is rolled by a two-roll rolling ...

example 2

[0027] A kind of production method of sulfur copper bar, comprises the following steps:

[0028] 1) Upward continuous casting of copper rods: smelting and upward continuous casting in the smelting device, covered with charcoal and graphite scales, using a traction unit to continuously cast copper rods; the temperature of the melting furnace is 1100 ° C, and the holding furnace The temperature is 1100°C, the diameter of the upward continuous casting copper rod is 45mm, and the upward continuous casting speed is 200mm / min; the copper rod contains 0.5% sulfur, 0.005% phosphorus, 0.15% selenium, and 0.15% antimony. Contains two elements such as cerium and cobalt at the same time, and the contents of the two elements are both 0.001%.

[0029] 2) Continuous rolling: use the copper rod obtained in step 2) as a raw material, and use a two-roll rolling mill with ten stands to roll the copper rod at a rolling speed of 0.25 m / s; the total processing rate of continuous rolling is 92%; In...

example 3

[0036] A kind of production method of sulfur copper bar, comprises the following steps:

[0037] 1) Upward continuous casting of copper rods: smelting and upward continuous casting in the smelting device, covered with charcoal and graphite scales, using a traction unit to continuously cast copper rods; the temperature of the melting furnace is 1100 ° C, and the holding furnace The temperature is 1100°C, the diameter of the upward continuous casting copper rod is 45mm, and the upward continuous casting speed is 200mm / min; the copper rod contains 0.5% sulfur, 0.005% phosphorus, 0.15% selenium, and 0.15% antimony; Contains two elements such as titanium and cobalt at the same time, and the contents of the two elements are both 0.001%.

[0038] 2) Continuous rolling: use the copper rod obtained in step 2) as raw material, and use a two-roll rolling mill with ten stands to roll the copper rod at a rolling speed of 0.25 m / s; the total processing rate of continuous rolling is greater ...

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PUM

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Abstract

The invention relates to a sulfur-copper bar production method. The chemical components of a sulfur-copper bar comprise 0.2%-0.5% of sulfur, 0.002%-0.005% of phosphorus, 0.1 %-0.15% of selenium and 0.1%-0.15% of antimony, wherein the ratio between the content of selenium and the content of antimony is 1:1. By the adoption of the steps of upward-drawing continuous casting of copper bars, milling, continuous rolling, annealing, drawing, straightening, splitting and the like, the tensile strength of the manufactured sulfur-copper bar is larger than 320 MPa, the elongation of the manufactured sulfur-copper bar is larger than 5%, the electric conductivity is larger than 82% IACS, and the cutting rate of the manufactured sulfur-copper bar is 82% that of free-cutting brass or over, wherein the free-cutting brass contains 61% of copper, 36% of zinc and 3% of lead.

Description

technical field [0001] The invention relates to a method for producing nonferrous metal materials, in particular to a method for producing sulfur copper rods. Background technique [0002] Precision conductive devices not only require high conductivity, but also require precise dimensions and smooth surfaces due to their complex shapes. Most of them must be cut, so materials are also required to have excellent cutting performance. Although pure copper has excellent electrical and thermal conductivity, its cutting performance is poor, so sulfur-containing copper alloys are mostly used for important conductive devices. While retaining the excellent properties of copper alloys, the electrical and thermal conductivity properties are not degraded much, and can be produced using conventional methods. [0003] The traditional processing methods of sulfur-copper rods are mainly ingot casting-hot extrusion-pickling-finishing-stretching-finishing, etc. The traditional processing proc...

Claims

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Application Information

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IPC IPC(8): B23P15/00C22C9/00
Inventor 徐高杰
Owner 江苏特尔维斯智能科技有限公司