High manganese easy cutting copper zinc alloy

A free-cutting and alloying technology, applied in the field of high-manganese free-cutting copper-zinc alloys, can solve the problems of high material costs and high prices, and achieve the effects of good appearance, reduced raw material costs, and good pressure processing performance.

Active Publication Date: 2007-07-18
NINGBO POWERWAY ALLOY MATERIAL
View PDF3 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the main components of this type of alloy are still copper and zinc, and the resources of copper and zinc are becoming more and more scarce at present, and the price is also getting higher and higher, so that the cost of materials remains high. Cutting brass has excellent cutting performance, good mechanical properties and corrosion resistance, relatively low price, easy to press processing, and can replace the alloy of free-cutting lead brass

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

[0030] Table 2 Example 1 alloy property test result of the present invention

[0031] Example

Extruded state

Processing rate 19.4%

Ingot

chips

(%)

Ammonia

experiment

tensile strength

degree(Mpa)

Elongation

(%)

Vickers Hard

Degree HV5

Tensile strength

degree(Mpa)

Elongation

(%)

1

550

23

147

-

-

100

not crack

2

-

-

281

-

-

80

-

3

475

14

138

-

-

100

-

4

515

5.0

199

-

-

-

-

5

420

26

117

610

5.0

80

not crack

6

440

38

130

-

-

100

-

7

430

38.5

104

510

12

85

...

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 present invention relates to one kind of free machining high manganese Cu-Zn alloy, which consists of Cu 45- 70 wt%, Mn 7-30 wt%, Pb 0.2-4 wt%, X 0.0001-2 wt%, and Zn and inevitable impurity for the rest; where, X is at least one of elements Fe, As, P, B, Cr, Li, Ni, Sn, Al. The free machining high manganese Cu-Zn alloy has free machining performance similar to that of lead brass, lowered material cost and excellent plastic working performance, and may be used in producing plastic worked product and cast product.

Description

technical field [0001] The invention relates to a high-manganese free-cutting copper-zinc alloy. Background technique [0002] Free-cutting lead brass is a traditional copper alloy with copper and zinc as the main components and lead added. All countries in the world have a series of alloy grades. The American ASTM standard has included 22 standards with different components. The Chinese national standard GB / T5231- In 2001, 11 standards were also included. It has a wide range of applications and is the most widely used brass material, occupying an important position. Patent applications with publication numbers TW509727b, EP0903416, JP7197152, and US5445687 disclose alloys for improving the mechanical properties and corrosion resistance of free-cutting brass, which are based on the original free-cutting brass, adding 2 to 5 small amounts of Copper alloys invented by other elements. Because the main components of this type of alloy are still copper and zinc, and the resourc...

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): C22C9/00C22C9/05C22C9/04C22C30/06
Inventor 郭淑梅张儿邵瑜罗智
Owner NINGBO POWERWAY ALLOY MATERIAL
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap