Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of brass wire

A brass and wire technology, applied in the field of brass wire preparation, can solve the problems of poor corrosion resistance, poor bending performance, uneven hardness, etc., achieve excellent bending performance and corrosion resistance, and improve strength and plasticity , the effect of excellent mechanical properties

Active Publication Date: 2022-01-28
JINTIAN COPPER GROUP CORP NINGBO
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can produce alloy wires with satisfactory mechanical properties (Japanese standard JIS3250, tensile strength above 490 MPa, elongation above 10%), but there are multiple annealings in this process, and the produced wires have coarse grains and low hardness. Even, there is local inhomogeneity in the phase structure, which directly leads to difficulties in drilling and chip removal, difficult cutting, poor bending performance and poor corrosion resistance when customers use it.
The main reason for multiple annealing is that the structure of the wire rod is not uniform after extrusion, and the mechanical properties are anisotropic. During the wire drawing process, the mechanical properties of the wire rod are also anisotropic. break in

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of brass wire
  • Preparation method of brass wire
  • Preparation method of brass wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Brass composition: Cu 58.6%, Mn 1.25%, Fe 0.5%, Al 0.5%, Pb 0.45%, Zn balance.

[0034] The specific production process of φ6.0mm brass wire is as follows:

[0035] A. Ingredients: including bright wire, zinc ingot, electrolytic manganese, iron-copper alloy, aluminum wire;

[0036] B, smelting, specifically comprises the following preparation steps:

[0037] 1) Gradually increase the voltage to 400V to heat up the furnace body, add bright wire and iron-copper alloy, cover with calcined charcoal, and heat up until it is completely melted;

[0038] 2) The voltage is lowered to 200V, the melt temperature is controlled at 1100°C to 1120°C, electrolytic manganese is added in batches, and then aluminum wire is added;

[0039] 3) Lower the temperature to 1060°C-1080°C, add zinc ingots to complete the dissolution, stir evenly and remove the slag;

[0040] 4) Sampling, spectroscopic testing of ingredients to pass;

[0041] 5) Add refining agent and deslagging agent, and cont...

Embodiment 2

[0049] Brass composition: Cu 58.6%, Mn 1.15%, Fe 0.45%, Al 0.5%, Pb 0.41%, Zn balance.

[0050]The specific production process of the specification φ10.5mm brass wire is as follows:

[0051] A. Ingredients: including bright wire, zinc ingot, electrolytic manganese, iron-copper alloy, aluminum wire;

[0052] B, smelting, specifically comprise the following preparation steps:

[0053] 1) Gradually increase the voltage to 400V to heat up the furnace body, add bright wire and iron-copper alloy, cover with calcined charcoal, and heat up until it is completely melted;

[0054] 2) The voltage is lowered to 200V, the melt temperature is controlled at 1100°C to 1120°C, electrolytic manganese is added in batches, and then aluminum wire is added;

[0055] 3) Lower the temperature to 1060°C-1080°C, add zinc ingots to complete the dissolution, stir evenly and remove the slag;

[0056] 4) Sampling, spectroscopic testing of components to pass;

[0057] 5) Add refining agent and deslaggin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a brass wire. The preparation method is characterized in that brass comprises the following components in percentage by mass: 55%-62% of Cu, 0.5%-1.5% of Mn, 0.2%-0.5% of Fe, 0.3%-0.8% of Al, 0.2%-0.5% of Pb and the balance being Zn and inevitable impurities; and a technological process comprises ingredients, smelting, semi-continuous casting, extrusion and combined drawing, wherein the ingredients comprise a bright line, a zinc ingot, electrolytic manganese, an iron-copper alloy and an aluminum wire which are required according to component proportions. According to the invention, by controlling a smelting technology, melt with uniform components is obtained, and preparation work is made for the subsequent semi-continuous casting to obtain a cast ingot with a uniform structure, so that the combined drawing can be directly performed after the extrusion, intermediate annealing in a traditional technology is omitted, the problems of coarse material grains, non-uniform phase structure distribution and anisotropy of physical and mechanical properties are avoided, and excellent mechanical properties, free cutting, bending performance and corrosion resistance are further obtained.

Description

technical field [0001] The invention relates to a preparation method of brass wire. Background technique [0002] Complex brass is made of copper and zinc as the main elements, and one or more of nickel, iron, manganese, silicon, aluminum, lead and other metals are added at the same time to obtain wear resistance and corrosion resistance superior to ordinary brass. Alloy materials with strength, hardness and machinability, which are widely used in ship and chemical parts, such as condensation pipes, gears, propellers, bearings, bushings and valve bodies, etc., electronic and electrical parts, such as connectors, connectors, screws, etc. , so that the development of complex brass has a strong material application pertinence, and C6782 alloy wire is one of them. [0003] The current production of C6782 alloy wire mainly adopts batching→castingextrusion→drawing→annealing→pickling, repeated drawing→annealing→pickling, to the finished product specifications. This process can p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04C22C1/03C22F1/08B22D11/124B22D11/00
CPCC22C9/04C22C1/03C22F1/08B22D11/124B22D11/004
Inventor 欧阳好郑良玉
Owner JINTIAN COPPER GROUP CORP NINGBO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products