Supercharge Your Innovation With Domain-Expert AI Agents!

Copper alloy and method for producing complex special-shaped end face bar

A copper alloy and special-shaped technology, applied in the field of metal materials, can solve problems such as uneven deformation stress and deformation, and achieve the effect of uniform alloy structure

Active Publication Date: 2019-05-21
NINGBO CHANGZHEN COPPER CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the above-mentioned technical problems existing in the prior art, and provides a uniform structure, excellent thermal and cold processing performance, which can overcome the problem of large uneven deformation stress and avoid the size of the special-shaped surface when producing complex special-shaped end-face profiles. Copper alloys for the production of bars with complex profiled faces that vary too much and are prone to deformation

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
  • Copper alloy and method for producing complex special-shaped end face bar
  • Copper alloy and method for producing complex special-shaped end face bar
  • Copper alloy and method for producing complex special-shaped end face bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Curved extruded rods (see figure 1 ) manufacture. The width of the profile is 96mm, and the minimum arc thickness is 5mm. With such an aspect ratio of arc size, it is easy to produce arc deformation, depression, asymmetry, etc. during the hot extrusion process.

[0030] The special-shaped bar production steps are as follows:

[0031] (1) Batching: take scrap copper as raw material, carry out batching according to the elemental composition (see Table 1) of the copper alloy of producing complex special-shaped end face;

[0032] (2) Refining ingot casting: The configuration of melting furnace + refining furnace + heat preservation casting furnace is adopted. The refining furnace is connected to the melting furnace and heat preservation furnace through a diversion groove. The melt is diverted to the refining furnace through the diversion groove for refining. It is refined at 1020-1120°C by combining boiling physical methods and chemical flux refining. During the refining ...

Embodiment 2

[0036] Flat processed materials (see figure 2 ) manufacture. The product is characterized by wide, flat and complex shapes. The width is 25mm, the minimum thickness is 2.4mm, the symmetrical surface has six parallel surfaces, the two sides of the edge are asymmetrical, and one end has a tapered flat head, the minimum size is only 1.6mm, and the dimensional accuracy is high. This is a processed product, which requires material removal and local plastic deformation to ensure its shape and accuracy. The processing process is most prone to uneven and twisted problems. Alloy materials need to have a blank with good machinability and plasticity, and the resistance is small when planing. , When the deformation is small, the production can be smooth.

[0037] The difference between the production method of the flat processed material in this embodiment and that of Example 1 is: (1) the element composition of the copper alloy is different (see Table 1); (2) the extrusion die pass de...

Embodiment 3

[0039] Shaped rods for instrument brackets (see image 3 ) manufacture. Mainly used for instrument brackets. After the downstream manufacturing of this product is interrupted, there is no need to process the shape, the efficiency is improved, and the material utilization rate is improved. The shape of this product is characterized by small edges, slopes and grooves. The key to production is to ensure size, smoothness, no defects, and no cracks.

[0040] The difference between the production method of the special-shaped bar for the instrument bracket in the present embodiment and the embodiment 1 is: (1) the elemental composition of the copper alloy is different (see Table 1); (2) the ingot extrudes the near-net blank, The head is driven by automatic control of limit, centering and jacking, and the head is directly produced, and the finished product is produced by planing and shaping. The products produced by this process method meet the application requirements, and the res...

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

No PUM Login to View More

Abstract

The invention discloses a copper alloy for producing a complex irregular end surface rod. The copper alloy is characterized by consisting of the following elements in percentage by mass: 57-61% of Cu, 0.2-3.5% of Pb, 0.1-0.5% of Fe, 0.1-0.5% of Sn, 0.02-0.2% of Al, 0.0001-0.025% of at least one of Ti, Zr, Ta, B, P and C, and the balance of Zn and inevitable impurities. The copper alloy disclosed by the invention is uniform in texture and excellent in both hot and cold processing property, the problem of large non-uniform deformation stress is overcome when a complex irregular end surface profile is produced, and deformation which is easy caused as irregular surfaces are too large in size difference is avoided. The invention further discloses a method for producing the complex irregular end surface rod. The method disclosed by the invention adopts universal processing equipment and is simple in step and good in operability.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a copper alloy and a method for producing complex special-shaped end face rods. Background technique [0002] Usually, the main shape and specification of copper alloy processing rods are mainly round, and the main shapes of profiled bars are square, regular hexagonal, and rectangular, which have been standardized. If the subsequent processing of products with complex shapes is mainly completed by turning, milling, and planing, the processing efficiency is low and the utilization rate of materials is low. Bar forging blanks can produce a variety of forgings of different shapes through hot die forging. Usually, round bars are used as blanks. For forgings with complex shapes, the rheology of the metal will be affected, resulting in insufficient mold filling and uneven stress. And produce forging defects etc., in order to ensure forging quality, the allowance design of billet is more...

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 Patents(China)
IPC IPC(8): C22C9/04C22C1/02C22C1/06C22F1/08B21C37/04
CPCB21C37/04C22C1/02C22C1/06C22C9/04C22F1/08
Inventor 宋长洪宋卡迪郭淑梅
Owner NINGBO CHANGZHEN COPPER CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com