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CN108754216A - A kind of copper tantnickel evanohm and preparation method thereof - Google Patents

A kind of copper tantnickel evanohm and preparation method thereof Download PDF

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Publication number
CN108754216A
CN108754216A CN201810731633.8A CN201810731633A CN108754216A CN 108754216 A CN108754216 A CN 108754216A CN 201810731633 A CN201810731633 A CN 201810731633A CN 108754216 A CN108754216 A CN 108754216A
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China
Prior art keywords
copper
tantnickel
evanohm
accounts
temperature
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CN201810731633.8A
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Chinese (zh)
Inventor
赵云飞
唐丽华
陆磊
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C9/00Alloys based on copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0425Copper-based alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Silicon Compounds (AREA)

Abstract

It is composed of the following components according to mass percent meter the invention discloses a kind of copper tantnickel evanohm:Silicon accounts for 0.5~2.5%, and nickel and chromium total content account for 2.5~6.8%, and zinc accounts for 0.03~0.05%, and magnesium accounts for 0.04~0.08%, and surplus is copper and inevitable impurity, wherein the ratio between mass percentage of the nickel and the chromium is 1:1.1~2.The invention also discloses preparation methods, including:(1) it requires to carry out dispensing according to mass percent, gained mixed-powder is after vacuum ball mill ball milling mixing is uniform;(2) mixed-powder is packed into mold, extrusion forming is carried out at room temperature, and gained green compact is put into the vacuum drying oven filled with argon gas and is sintered, and 3~5h is sintered at a temperature of 950~1100 DEG C, and in 8~10h of this temperature, furnace cooling is simultaneously squeezed into bar under the conditions of 320~350 DEG C;(3) annealing furnace is used to carry out aging anneal to above-mentioned bar, wherein annealing temperature is 400~500 DEG C, annealing time is 2~4h, obtains copper tantnickel evanohm.The preparation process of the present invention is simple, and alloy obtained has the advantages that intensity is high, friction and wear behavior is good.

Description

A kind of copper tantnickel evanohm and preparation method thereof
Technical field
The present invention relates to technical field of alloy material, more particularly to a kind of copper tantnickel evanohm and preparation method thereof.
Background technology
There is acid bronze alloy excellent mechanical, anti-corrosion, wear-resisting property to be commonly used to as ideal machine construction material Manufacture valve, gear, worm gear, axle sleeve and the propeller etc. under complex working condition.The rapid development of science and technology, there is an urgent need into one Step improves intensity, hardness and the wear-resisting property of acid bronze alloy.The performance of acid bronze alloy is influenced by many conditions.The performance of material It is to be determined by its internal heterogeneous microstructure.All the time, influence of the chemical composition of alloy to its structure property is standby Favored by domestic and international researcher, domestic and foreign scholars are explored by alloying component optimization design between its microstructure and performance Relationship, to for raising the alloy performance provide new resolving ideas.The difference of various elements ingredient in alloy There is direct influence to the structure property of alloy.
Nickel chromium triangle element, which is added, in metallurgical industry, in copper alloy can improve the institutional framework, mechanical performance and electric conductivity of copper. The hardness and tensile strength of alloy increase with the increase of nickel chromium triangle constituent content, while the plasticity of alloy also reaches good effect Fruit.Acid bronze alloy is high with intensity, wear-resisting property is good, casting character is excellent, smelting technology is simple, consumes energy less, is pollution-free and former Series of advantages such as material cost is low, thus by the most attention of domestic and international expert, therefore, copper alloy there is very strong market Competitiveness.Based on this, the present invention develops a kind of copper tantnickel evanohm that can improve friction and wear behavior.
For this reason, it is necessary in view of the above-mentioned problems, propose a kind of copper tantnickel evanohm and preparation method thereof, can solve existing There is the problem of technology.
Invention content
The purpose of the present invention is to provide a kind of copper tantnickel evanohm and preparation method thereof, with overcome it is in the prior art not Foot.
To achieve the above object, the present invention provides the following technical solutions:
A kind of copper tantnickel evanohm, it is composed of the following components according to mass percent meter:Silicon accounts for 0.5~2.5%, nickel and chromium Total content accounts for 2.5~6.8%, and zinc accounts for 0.03~0.05%, and magnesium accounts for 0.04~0.08%, and surplus is copper and inevitably miscellaneous Matter, wherein the ratio between mass percentage of the nickel and the chromium is 1:1.1~2.
Preferably, the mass percentage of the silicon is up to 2.0%.
Preferably, composed of the following components according to mass percent meter:Silicon accounts for 2.0%, and nickel and chromium total content account for 6.0%, Zinc accounts for 0.04%, and magnesium accounts for 0.06%, and surplus is copper and inevitable impurity.
Preferably, the ratio between mass percent of the nickel and the chromium is 1:1.5.
Preferably, the content of the inevitable impurity is not more than 0.25%.
The present invention also provides a kind of preparation methods of copper tantnickel evanohm, include the following steps:
(1) it requires to carry out dispensing according to mass percent, gained mixed-powder is after vacuum ball mill ball milling mixing is uniform;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact is put Enter and be sintered in the vacuum drying oven filled with argon gas, 3~5h is sintered at a temperature of 950~1100 DEG C, and in 8~10h of this temperature, Furnace cooling is simultaneously squeezed into bar under the conditions of 320~350 DEG C;
(3) use annealing furnace to above-mentioned bar carry out aging anneal, wherein annealing temperature be 400~500 DEG C, annealing when Between be 2~4h, obtain copper tantnickel evanohm.
Compared with the prior art, the advantages of the present invention are as follows:The preparation process of the present invention is simple, and alloy obtained has strong The advantage that degree is high, friction and wear behavior is good.
Specific implementation mode
The present invention is described further by the following example:According to following embodiments, the present invention may be better understood. However, as it will be easily appreciated by one skilled in the art that specific material ratio, process conditions and its result described in embodiment are only used In illustrating the present invention, without the present invention described in detail in claims should will not be limited.
The present invention discloses a kind of copper tantnickel evanohm, composed of the following components according to mass percent meter:Silicon accounts for 0.5~ 2.5%, nickel and chromium total content account for 2.5~6.8%, and zinc accounts for 0.03~0.05%, and magnesium accounts for 0.04~0.08%, and surplus is for copper and not Evitable impurity, wherein the ratio between mass percentage of the nickel and the chromium is 1:1.1~2.
Invention additionally discloses a kind of preparation methods of copper tantnickel evanohm, include the following steps:
(1) it requires to carry out dispensing according to mass percent, gained mixed-powder is after vacuum ball mill ball milling mixing is uniform;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact is put Enter and be sintered in the vacuum drying oven filled with argon gas, 3~5h is sintered at a temperature of 950~1100 DEG C, and in 8~10h of this temperature, Furnace cooling is simultaneously squeezed into bar under the conditions of 320~350 DEG C;
(3) use annealing furnace to above-mentioned bar carry out aging anneal, wherein annealing temperature be 400~500 DEG C, annealing when Between be 2~4h, obtain copper tantnickel evanohm.
Wherein, the mass percentage of the silicon is up to 2.0%.
Wherein, composed of the following components according to mass percent meter:Silicon accounts for 2.0%, and nickel and chromium total content account for 6.0%, zinc 0.04% is accounted for, magnesium accounts for 0.06%, and surplus is copper and inevitable impurity.
Wherein, the ratio between mass percent of the nickel and the chromium is 1:1.5.
Wherein, the content of the inevitable impurity is not more than 0.25%.
It is following to be illustrated with specifically embodiment, to prepare the copper tantnickel evanohm in the present invention.
Embodiment 1
(1) according to mass percent require carry out dispensing, gained mixed-powder after vacuum ball mill ball milling mixing is uniform, Wherein, silicon accounts for 0.5%, and nickel and chromium total content account for 2.5%, and zinc accounts for 0.03%, and magnesium accounts for 0.04%, and surplus is for copper and inevitably Impurity;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact is put Enter and be sintered in the vacuum drying oven filled with argon gas, be sintered 3h at a temperature of 950 DEG C, and this temperature 8h, furnace cooling and in It is squeezed into bar under the conditions of 320 DEG C;
(3) annealing furnace is used to carry out aging anneal to above-mentioned bar, wherein annealing temperature is 400 DEG C, annealing time is 2h obtains copper tantnickel evanohm.
Embodiment 2
(1) according to mass percent require carry out dispensing, gained mixed-powder after vacuum ball mill ball milling mixing is uniform, Wherein, silicon accounts for 2.0%, and nickel and chromium total content account for 6.0%, and zinc accounts for 0.04%, and magnesium accounts for 0.06%, and surplus is for copper and inevitably Impurity;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact is put Enter and be sintered in the vacuum drying oven filled with argon gas, be sintered 4h at a temperature of 1050 DEG C, and this temperature 9h, furnace cooling and in It is squeezed into bar under the conditions of 330 DEG C;
(3) annealing furnace is used to carry out aging anneal to above-mentioned bar, wherein annealing temperature is 450 DEG C, annealing time is 3h obtains copper tantnickel evanohm.
Embodiment 3
(1) according to mass percent require carry out dispensing, gained mixed-powder after vacuum ball mill ball milling mixing is uniform, Wherein, silicon accounts for 2.5%, and nickel and chromium total content account for 6.8%, and zinc accounts for 0.05%, and magnesium accounts for 0.08%, and surplus is for copper and inevitably Impurity;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact is put Enter and be sintered in the vacuum drying oven filled with argon gas, 5h is sintered at a temperature of 1100 DEG C, and in this temperature 10h, furnace cooling is simultaneously It is squeezed into bar under the conditions of 350 DEG C;
(3) annealing furnace is used to carry out aging anneal to above-mentioned bar, wherein annealing temperature is 500 DEG C, annealing time is 4h obtains copper tantnickel evanohm.
Copper tantnickel evanohm in above-described embodiment 1~3 has the advantages that intensity is high, friction and wear behavior is good.To above-mentioned Copper tantnickel evanohm in Examples 1 to 3 carries out the experiment of mechanical property, the results showed that, tensile strength is up to 525MPa.It is right Copper tantnickel evanohm in above-described embodiment 1~3 carries out wearability experiment, and under 20N contact loads, Ceramic Balls rotating speed is 450r/min, after 8000 turns, copper silicon nichrome surface is not worn yet.
Finally, it is to be noted that, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include so that including a series of elements process, method, article or equipment not only include those elements, but also Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic Element.

Claims (6)

1. a kind of copper tantnickel evanohm, which is characterized in that composed of the following components according to mass percent meter:Silicon accounts for 0.5~ 2.5%, nickel and chromium total content account for 2.5~6.8%, and zinc accounts for 0.03~0.05%, and magnesium accounts for 0.04~0.08%, and surplus is for copper and not Evitable impurity, wherein the ratio between mass percentage of the nickel and the chromium is 1:1.1~2.
2. copper tantnickel evanohm according to claim 1, which is characterized in that the mass percentage of the silicon is up to 2.0%.
3. copper tantnickel evanohm according to claim 2, which is characterized in that according to mass percent meter by following components group At:Silicon accounts for 2.0%, and nickel and chromium total content account for 6.0%, and zinc accounts for 0.04%, and magnesium accounts for 0.06%, and surplus is copper and inevitably miscellaneous Matter.
4. copper tantnickel evanohm according to claim 3, which is characterized in that the mass percent of the nickel and the chromium it Than being 1:1.5.
5. copper tantnickel evanohm according to claim 1, which is characterized in that the content of the inevitable impurity is little In 0.25%.
6. a kind of preparation method of copper tantnickel evanohm according to claim 1, which is characterized in that include the following steps:
(1) it requires to carry out dispensing according to mass percent, gained mixed-powder is after vacuum ball mill ball milling mixing is uniform;
(2) mixed-powder after ball milling in step (1) is packed into mold, carries out extrusion forming at room temperature, gained green compact, which is put into, to be filled There is sintering in the vacuum drying oven of argon gas, 3~5h is sintered at a temperature of 950~1100 DEG C, and in 8~10h of this temperature, with stove Cooling is simultaneously squeezed into bar under the conditions of 320~350 DEG C;
(3) annealing furnace is used to carry out aging anneal to above-mentioned bar, wherein annealing temperature is 400~500 DEG C, annealing time 2 ~4h obtains copper tantnickel evanohm.
CN201810731633.8A 2018-07-05 2018-07-05 A kind of copper tantnickel evanohm and preparation method thereof Withdrawn CN108754216A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115198140A (en) * 2021-04-13 2022-10-18 美的集团股份有限公司 Copper alloy and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577037A1 (en) * 2004-03-15 2005-09-21 The University Of Queensland Infiltrated aluminium preforms
CN101613816A (en) * 2009-07-20 2009-12-30 温州宏丰电工合金有限公司 Multiple dispersion strengthening copper-base composite material prepared in situ and preparation method thereof
CN102418004A (en) * 2011-11-24 2012-04-18 中铝洛阳铜业有限公司 Nickel-chromium-silicon-bronze alloy material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577037A1 (en) * 2004-03-15 2005-09-21 The University Of Queensland Infiltrated aluminium preforms
CN101613816A (en) * 2009-07-20 2009-12-30 温州宏丰电工合金有限公司 Multiple dispersion strengthening copper-base composite material prepared in situ and preparation method thereof
CN102418004A (en) * 2011-11-24 2012-04-18 中铝洛阳铜业有限公司 Nickel-chromium-silicon-bronze alloy material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115198140A (en) * 2021-04-13 2022-10-18 美的集团股份有限公司 Copper alloy and application thereof

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Application publication date: 20181106

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