CN104313388A

CN104313388A - Copper alloy

Info

Publication number: CN104313388A
Application number: CN201410591260.0A
Authority: CN
Inventors: 王健英
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-29
Filing date: 2014-10-29
Publication date: 2015-01-28

Abstract

The invention relates to a copper alloy which is prepared from the following elements in percentage by mass: 18.2-18.9% of nickel, 22.5-23.8% of manganese, 5.7-6.5% of ferrum, 0.03-0.05% of zirconium, 0.3-0.5% of tin, 0.5-0.8% of aluminum, 0.001-0.003% of neodymium, 0.02-0.04% of niobium, 0.05-0.2% of titanium and the balance of copper.

Description

One Albatra metal-

Technical field

The invention belongs to Material Field, refer to a kind of copper alloy especially.

Background technology

Copper and its alloy, because it has good solidity to corrosion, electroconductibility, thermal conductivity and the performance such as nonmagnetic, is widely used in the fields such as various electric works, generator, electric motor, one of important materials becoming modern industry.

But common Copper and its alloy also exists obvious defect, be exactly that mechanical property is not good.In order to overcome this defect, prior art proposes in fine copper, add appropriate nickel, manganese, ferro element form novel copper alloy, and such copper alloy has excellent mechanical property, and the performance in high temperature resistant also shows better.But in the tissue of the existing copper-nickel-manganese-iron alloy used, crystal grain is uneven, easily change in organization occurs when having high mechanical property and hot operation.

Technology is now also had to propose a kind of copper-nickel-manganese-iron alloy, can solve in this kind of alloy and expect brilliant thickness problem of non-uniform, and at high temperature can keep the stability of tissue, be adopt to be by mass percentage in this technical scheme: the copper of the nickel of 19%-21%, the manganese of 20%-22%, the iron of 4%-5%, the titanium of 0%-1.5% and surplus.The uniform crystal particles aspect of the copper alloy that such material composition is produced will be good a lot, but in order to increase the intensity of copper alloy, add metallic iron, because the amalgamation between iron and copper is poor, interlayer phenomenon is easily there is at organization internal, and because in actual production, all containing certain carbon in iron, and be present in weave construction with spherical graphite state under the effect of titanium, and these factors can have influence on the specific conductivity of copper alloy.

Summary of the invention

The object of the invention is to propose an improvement project to the production method of existing copper alloy, the irregular defect of interior tissue crystal arrangement of existing nickelin can be overcome by the program, ensureing the performance prerequisite decline lower production cost of existing copper-manganese-nickel alloy.

The present invention is achieved by the following technical solutions:

One Albatra metal-, the copper of the neodymium of the tin of the iron of the nickel of consisting of by mass percentage: 18.2-18.9%, the manganese of 22.5-23.8%, 5.7-6.5%, the zirconium of 0.03-0.05%, 0.3-0.5%, the aluminium of 0.5-0.8%, 0.001-0.003%, the niobium of 0.02-0.04%, the titanium of 0.05-0.2% and surplus.

The present invention's beneficial effect is compared with the existing technology:

The melting boundary strength between iron and copper is added after adding niobium by using the mode of ferrocolumbium, and the use of niobium makes the crystal grain fine uniform more of copper alloy, simultaneously, adding zirconium, tin, aluminium and neodymium, make copper alloy in copper alloy, not only form the framework improving intensity, also improve the more orderly of alloy interior tissue crystal grain arrangement.

Embodiment

Below describe embodiments of the invention in detail.

The application provides an Albatra metal-, the copper of the neodymium of the tin of the iron of the nickel of consisting of by mass percentage: 18.2-18.9%, the manganese of 22.5-23.8%, 5.7-6.5%, the zirconium of 0.03-0.05%, 0.3-0.5%, the aluminium of 0.5-0.8%, 0.001-0.003%, the niobium of 0.02-0.04%, the titanium of 0.05-0.2% and surplus.

Preparation method is:

First ferroniobium, ferrozirconium, neodymium-iron alloy is prepared in the ratio of material each in copper alloy, the preparation of ferroniobium, ferrozirconium, neodymium-iron alloy is prior art, be not described in detail at this, then powder is processed into, in the industrial production to be not more than 10 cubic centimetres for benchmark.

Secondly nickel powder, manganese titanium, titanium valve is prepared in the ratio of material each in copper alloy, composed of the following components by mass percentage: the copper of the tin of the iron of the nickel of 18.2-18.9%, the manganese of 22.5-23.8%, 5.7-6.5%, the zirconium of 0.03-0.05%, 0.3-0.5%, the aluminium of 0.5-0.8%, the neodymium of 0.001-0.003%, the titanium of 0.05-0.2% and surplus.In preparation process, the error of each material is no more than 0.3%, otherwise can have influence on the quality of copper alloy.

And the ferroniobium powder processed in advance, ferrozirconium are closed powder and the same nickel powder of neodymium-iron alloy powder, aluminium powder, glass putty, manganese powder and titanium valve batch mixing 0.5-1 hour under oxygen free condition in constant temperature mixer.

Above-mentioned materials is no more than melting under the condition of 0.6kpa in vacuum tightness;

Described melting step is, first, be warmed up to 900-1000 DEG C, holding temperature 20-30 minute, then 1200-1300 DEG C is warmed up to, insulation 30-60 minute, then 900-1000 DEG C is cooled to the speed being not less than 5 DEG C/min, constant temperature 20-30 minute, then be warming up to 1200-1300 DEG C, insulation 30-60 minute, in the insulating process most later stage, to body of heater apply one at the uniform velocity rotary electromagnetic field within 5 minutes, then start cooling, at the uniform velocity cool to 800-850 DEG C to be no more than 10 DEG C/min, naturally cooling after then using 90 ± 5 DEG C of thermostat(t)ed waters to be cooled to 300 DEG C.

The application is by fusion process, cooling process after 1200-1300 DEG C of temperature certain hour, the growth of crystal grain in alloy structure is suppressed, the too fast crystal grain of growth and other grain growing velocity contrast can be made like this to reduce, after being subject to rotatingfield effect, in tissue, the arrangement of crystal grain is more orderly, and because the minimizing of crystal grain difference, the structure property being conducive to copper alloy improves.

In each embodiment of the application, distinguishing is only that the composition of each material is different, and remaining preparation technology is all identical, and therefore, below in an example, only list different material compositions, other operation does not carry out repeat specification.

Embodiment 1

One Albatra metal-, composed of the following components by mass percentage: the nickel of 18.2%, the manganese of 22.5%, 5.7% iron, 0.03% zirconium, 0.3% tin, 0.5% aluminium, the neodymium of 0.001%, the titanium of 0.05% and surplus copper.

Embodiment 2

One Albatra metal-, composed of the following components by mass percentage: the nickel of 18.9%, the manganese of 23.8%, 6.5% iron, 0.05% zirconium, 0.5% tin, 0.8% aluminium, the neodymium of 0.003%, the titanium of 0.2% and surplus copper.

Embodiment 3

One Albatra metal-, composed of the following components by mass percentage: the nickel of 18.5%, the manganese of 23.2%, 6.3% iron, 0.035% zirconium, 0.38% tin, 0.6% aluminium, the neodymium of 0.0022%, the titanium of 0.15% and surplus copper.

Claims

1. an Albatra metal-, is characterized in that: consisting of by mass percentage: the copper of the neodymium of the tin of the iron of the nickel of 18.2-18.9%, the manganese of 22.5-23.8%, 5.7-6.5%, the zirconium of 0.03-0.05%, 0.3-0.5%, the aluminium of 0.5-0.8%, 0.001-0.003%, the niobium of 0.02-0.04%, the titanium of 0.05-0.2% and surplus.