Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-strength brass alloy

A brass alloy, high-strength technology, applied in the field of high-strength brass alloys, can solve the problems of low mechanical properties, high price, and can only be used as advanced components, and achieves high alloy strength, low price, and good cold and hot processing performance. Effect

Active Publication Date: 2008-07-09
NINGBO POWERWAY ALLOY MATERIAL
View PDF4 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a large number of brass and tin phosphor bronze are used. The biggest advantage of brass is that the price is relatively cheap, but the disadvantage is that the mechanical properties are low, which affects the reliability and life of the components; the tin phosphor bronze has medium mechanical properties and can meet the requirements of general components. But they are relatively expensive; beryllium bronze has the best overall performance, but it is expensive and can only be used as advanced components

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Using the iron mold casting process, the alloy is smelted in a clay crucible in a 10kg medium frequency induction furnace, covered with charcoal, and iron mold is cast into an ingot of Φ60mm×250mm. Each furnace is 7kg, and the alloy composition is listed in Table 1.

[0012] Table 1, iron mold casting alloy composition (wt%)

[0013]

Example

Zn

Al

Ni

Cr

Zr

Cu and unavoidable

impurities

1

21.72

3.0

2.0

-

-

73.28

2

20.95

3.5

0.85

0.1

-

74.6

3

21.44

3.82

0.42

0.22

0.5

73.6

4

29

3.51

0.6

0.15

0.1

66.64

[0014] Melting process: Add Cu, Ni, and Al into the crucible, heat up and melt, these three elements are melted, choose whether to add Cr ...

Embodiment 2～4

[0018] The process steps are the same as in Example 1, and the alloy composition is shown in Table 1.

[0019] The properties of the alloy wire rods of Examples 1-4 produced by the iron mold ingot processing process are listed in Table 2.

[0020] Table 2. Properties of wire produced by iron mold casting

[0021] Material specification

Embodiment 5

[0023] The horizontal continuous casting process is adopted. The horizontal continuous casting is melted in a 300kg intermediate frequency furnace, and then poured into a 600kg holding furnace for drawing casting, and a continuous casting billet of Φ12mm is pulled out. The composition of the alloy is listed in Table 3.

[0024] Table 3. Horizontal continuous casting alloy composition (wt%)

[0025]

[0026] Drawing process of continuous casting slab: Φ11.6→Φ10.1→Φ9→Φ8.2→Φ7.5→shrinking Φ7.05→annealing at 650℃ / 150min→pickling→Φ6.0→Φ5.4→Φ4. 8→Annealing 650℃ / 150min→Pickling→Φ4.1→Φ3.5→Φ3.0→Bright annealing 650℃ / 150min→Pickling→(multi-mode wire drawing)Φ2.75 Φ2.55 Φ2.35 Φ2.2 Φ2.1 Φ1.90Φ1.80→bright annealing 640℃ / 150min→pickling→(multi-mode drawing)Φ1.6 Φ1.4 Φ1.25 Φ1.15Φ0.95 Φ0.85 Φ0.8→bright annealing 620℃ / 150min.

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
Σ0.2aaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-intensity brass alloy, which is characterized in that the compositions of the weight percentage are that Zn is 15-30 percent, Al is 3.0-5.0 percent, Ni is 0.2-2.0 percent, Cr is 0-0.50 percent, Zr is 0-0.50 percent, the other content is Cu and inevitable impurity. The performance of the invention is higher or equivalent to phosphor bronze, the cost is low, and the invention is capable of replacing the phosphor bronze and partial beryllium bronze to prepare various elements. The invention guarantees the reliability, stability and long life of computers, aerospace and household appliance elements.

Description

technical field [0001] The invention relates to a high-strength brass alloy. Background technique [0002] The development of modern high technology puts forward higher requirements on the performance of materials, especially in today's information age, which requires high reliability, stability and long life of electronic components. To meet these requirements, materials must have high strength, high electrical conductivity, wear resistance, and corrosion resistance. At the same time, in order to compete in the market, materials are required to have a lower price. At present, a large number of brass and tin phosphor bronze are used. The biggest advantage of brass is that the price is relatively cheap, but the disadvantage is that the mechanical properties are low, which affects the reliability and life of the components; the tin phosphor bronze has medium mechanical properties and can meet the requirements of general components. But they are relatively expensive; beryllium...

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
IPC IPC(8): C22C9/04
Inventor 潘奇汉梁梅玲孟祥鹏吴宝镇
Owner NINGBO POWERWAY ALLOY MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com