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High manganese easy cutting copper zinc alloy

An easy-cutting and alloying technology, which is 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 sensory perception, reduced raw material costs, and good pressure processing performance

Active Publication Date: 2009-01-28
NINGBO POWERWAY ALLOY MATERIAL
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  • 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

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  • High manganese easy cutting copper zinc alloy
  • High manganese easy cutting copper zinc alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0031]

[0032] Table 3 Alloy cutting force test result of the present invention

[0033] Sample serial number

Tangential force (N)

Axial force (N)

Radial force (N)

Example 13 Alloy

112.7480

101.9713

77.6808

Example 18 Alloy

133.7571

77.0792

51.1476

Comparative sample C36000

98.4577

112.1325

80.4297

[0034] As can be seen from Table 3, the axial force and radial force of the embodiment are less than that of the comparative sample. If the tangential force of the comparative sample C36000 alloy is divided by the tangential force of the embodiment alloy to obtain the machinability, No. 13 alloy is 87.33 %, No. 18 alloy is 73.61%, and the comprehensive cutting performance of the alloy is good.

[0035]Dezincification corrosion experiments were also carried out on alloys Nos. 9 and 16. The dezinc...

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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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C9/05C22C9/04C22C30/06
Inventor 郭淑梅张儿邵瑜罗智
Owner NINGBO POWERWAY ALLOY MATERIAL
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