CN109321780A - A kind of brass alloys of high elastic modulus and preparation method thereof - Google Patents
A kind of brass alloys of high elastic modulus and preparation method thereof Download PDFInfo
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- CN109321780A CN109321780A CN201811380682.8A CN201811380682A CN109321780A CN 109321780 A CN109321780 A CN 109321780A CN 201811380682 A CN201811380682 A CN 201811380682A CN 109321780 A CN109321780 A CN 109321780A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing 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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Abstract
The invention discloses a kind of brass alloys of high elastic modulus, be made of the raw material of following weight percentage: nickel 1.8-2.5wt%, silicon 0.8-1.2wt%, tin 0.2-0.5wt%, cobalt 0.1-0.5wt%, phosphorus 0.1-0.3wt%, magnesium 1.2-1.8wt%, iron 0.01-0.03wt%, zinc 22.5-30.5wt%, surplus are copper and inevitable impurity.The present invention is compared with the prior art, pass through a large amount of screening test, it is surprised to find that in the research to alloying element composition and ratio, add specific metallic element, according to specific consumption proportion, pass through the interaction between each addition element, so that brass alloys integrally have very excellent tensile strength and elastic property, especially, brass alloys obtained have beyond the elasticity modulus expected.Brass alloys tensile strength of the invention reaches 765MPa；Elasticity modulus reaches 122.5Gpa.
Description
Technical field
The invention belongs to metal alloy compositions field, in particular to the brass alloys of a kind of high elastic modulus and its preparation side
Method.
Background technique
High resiliency copper-based material be widely used in the various elastic element fields such as electrical connector, spring, switch, contact and
The industrial circles such as electronics, communication, instrument.Currently, high resiliency copper-based material is based on the materials such as beryllium-bronze, tin-phosphor bronze.But
Above-mentioned Cu alloy material there are cost of material it is high, production technology is complicated the disadvantages of.
Currently, China is in economic rapid growth period, the industry developments such as electronics, electrical are rapid, to tin phosphorus bronze band
Quickly, the speed with average annual 12% or more increases for the demand growth of material.Therefore, it is dedicated to studying the substitution of tin-phosphor bronze both at home and abroad
Product.But so far, compared with the elastic property of brass alloys disclosed in the prior art and tin-phosphor bronze, beryllium-bronze etc., generally
Have the defects that elastic property is poor.
Brass makees the copper alloy of main adding elements with zinc, has beautiful yellow, is referred to as brass.Copper zinc bianry alloy claims
Basis brass or simple brass.Brass more than ternary claims special brass or complex brass.Brass containing zinc lower than 36% closes
Gold is made of solid solution, has good cold-forming property, and the brass such as containing zinc 30% is commonly used to production shell case, is commonly called as shell case Huang
Copper or carobrozne.For brass alloys containing zinc between 36~42% by forming with solid solution, the most commonly used is contain zinc 40%
Six or four brass.In order to improve the performance of basis brass, other elements, such as aluminium, nickel, manganese, tin, silicon, lead are often added.Aluminium can mention
The intensity of high brass, hardness and corrosion resistance, but plasticity is reduced, it is suitable for seagoing vessel condenser pipe and other anti-corrosion parts.Tin can mention
The intensity of high brass and rotproofness to seawater, therefore claim admirality brass, it is used as ship Thermal Equipment and propeller etc..Lead can improve
The cutting ability of brass；This free-cutting brass is commonly used for clock and watch part.Brassing is commonly used to production valve and pipe fitting
Deng.
Currently, the technical solution of some brass alloys has been disclosed in the prior art, such as publication No. is CN
The Chinese patent application of 102851530 A discloses a kind of Copper-zinc alloy material, and the composition composition of the Cu alloy material is by weight
Amount percentage includes: the nickel of 1.5-3.5%, the silicon of 0.4-0.6%, the zinc of 33-36.5%, remaining is for copper and inevitably
Impurity.The composition composition of the Cu alloy material further comprises having by weight percentage: the tin of 0.1-0.6%, 0.05-
1.0% cobalt, the phosphorus of 0.05-0.05%, one of iron of 0.05-0.1% or multiple combinations.The Cu alloy material at
Part composition further comprises having by weight percentage: one or both of magnesium of the manganese of 0.02-0.1% and 0.08-0.2% group
It closes.But the elastic property for being tested the brass alloys be not it is very excellent, there is the space that further increases.Therefore, it studies
More preferably brass alloys become a kind of urgent need to a kind of elastic property out.
Summary of the invention
In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a kind of elasticity modulus height, preparation process are simple
Brass alloy material and preparation method thereof.For achieving the above object, the invention adopts the following technical scheme:
A kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 1.8-2.5wt%, silicon 0.8-
1.2wt%, tin 0.2-0.5wt%, cobalt 0.1-0.5wt%, phosphorus 0.1-0.3wt%, magnesium 1.2-1.8wt%, iron 0.01-
0.03wt%, zinc 22.5-30.5wt%, surplus are copper and inevitable impurity.
Preferably, a kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 1.8wt%,
Silicon 1.2wt%, tin 0.2wt%, cobalt 0.5wt%, phosphorus 0.1wt%, magnesium 1.8wt%, iron 0.01wt%, zinc 30.5wt%, surplus are
Copper and inevitable impurity.
Preferably, a kind of brass alloy material of high elastic modulus, is made: nickel of the raw material of following weight percentage
2.5wt%, silicon 0.8wt%, tin 0.5wt%, cobalt 0.1wt%, phosphorus 0.3wt%, magnesium 1.2wt%, iron 0.03wt%, zinc
22.5wt%, surplus are copper and inevitable impurity.
Preferably, a kind of brass alloy material of high elastic modulus, is made: nickel of the raw material of following weight percentage
2.2wt%, silicon 1.0wt%, tin 0.35wt%, cobalt 0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, iron 0.02wt%, zinc
27.5wt%, surplus are copper and inevitable impurity.
A kind of preparation method of the brass alloys of high elastic modulus of the present invention, comprising the following steps:
(1) whole raw materials are added intermediate frequency furnace and carry out melting, and smelting temperature is 1150-1250 DEG C, stir evenly, soaking time
30-60min；
(2) swage is cast, and 1020-1100 DEG C of cast temperature, obtains brass alloys ingot casting；
(3) brass alloys ingot casting is carried out to pure fire processing immediately after hot extrusion at 900 DEG C, then cold working obtains material material.
Metallic element employed in brass alloys raw material of the invention plays an important role respectively in the alloy.Zinc is closing
Solid solubility is very big in gold, there is solution strengthening effect.Tin can inhibit dezincification, improve corrosion resistance, especially raising anti-seawater corrosion
Ability.Iron more than solid solubility exists with Fe-riched phase particle, and fusing point is high, can refine crystal grain as nucleus, and can prevent
Recrystal grain is grown up, to improve the mechanical property and processing performance of alloy.Nickel and copper infinitely dissolve form continuous solid solution,
With broad monophase field, the intensity, toughness and anti-dezincification and stress corrosion cracking ability of copper alloy can be improved.Cobalt improves
Corrosion resistance, thermal stability and elastic strength.Silicon improves alloy strength, hardness, casting fluidity, weldability, but plasticity is
It reduces, can reduce friction factor as Si, Pb are added simultaneously.The addition of magnesium declines the conductivity of copper, but copper can be improved
Oxidation-resistance property also has deoxidation to copper.Phosphorus is deoxidier most effective, that cost is minimum, the presence of trace amounts of phosphorus, can be with
The mobility of melt is improved, improves the welding performance of copper and alloy, corrosion resisting property, improve anti-softening degree, so phosphorus is copper again
And the valuable addition element of alloy.Phosphor copper is widely used in waterpipe, refrigeration and air conditioner heat-dissipating pipe for building, naval vessel seawater
Pipeline；Low-phosphorous copper alloy plate, band are widely applied in electronics and chemical engineering industry, and integrated circuit lead frame copper strip also largely makes
With low-phosphorous copper alloy；The phosphor copper of eutectic composition, is excellent welding material, and high phosphor copper alloy has between 580-620 DEG C
There is superplasticity, is the important materials for welding copper and copper alloy, steel and copper part.
The present invention compared with the prior art, by a large amount of screening test, in the research to alloying element composition and ratio
In it was unexpectedly observed that add specific metallic element, according to specific consumption proportion, pass through the phase interaction between each addition element
With so that brass alloys integrally have very excellent tensile strength and elastic property, especially, brass alloys obtained have
Elasticity modulus beyond expectation.Brass alloys tensile strength of the invention reaches 765MPa；Elasticity modulus reaches 122.5Gpa.
Specific embodiment
For a further understanding of the present invention, invention preferred embodiment is described below with reference to embodiment, but is answered
Work as understanding, these descriptions are only further explanation the features and advantages of the present invention, rather than to the limit of the claims in the present invention
System.
Embodiment 1:
A kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 1.8wt%, silicon 1.2wt%, tin
0.2wt%, cobalt 0.5wt%, phosphorus 0.1wt%, magnesium 1.8wt%, iron 0.01wt%, zinc 30.5wt%, surplus is for copper and unavoidably
Impurity.
A kind of preparation method of the brass alloys of above-mentioned high elastic modulus, comprising the following steps:
(1) whole raw materials are added intermediate frequency furnace and carry out melting, and smelting temperature is 1150-1250 DEG C, stir evenly, soaking time
30-60min；
(2) swage is cast, and 1020-1100 DEG C of cast temperature, obtains brass alloys ingot casting；
(3) brass alloys ingot casting is carried out to pure fire processing immediately after hot extrusion at 900 DEG C, then cold working obtains material material.
Embodiment 2:
A kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 2.5wt%, silicon 0.8wt%, tin
0.5wt%, cobalt 0.1wt%, phosphorus 0.3wt%, magnesium 1.2wt%, iron 0.03wt%, zinc 22.5wt%, surplus is for copper and unavoidably
Impurity.
The preparation method is the same as that of Example 1 for above-mentioned brass alloy material.
Embodiment 3:
A kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 2.2wt%, silicon 1.0wt%, tin
0.35wt%, cobalt 0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, iron 0.02wt%, zinc 27.5wt%, surplus are copper and can not keep away
The impurity exempted from.
The preparation method is the same as that of Example 1 for above-mentioned brass alloy material.
Comparative example 1:
A kind of brass alloys are made of the raw material of following weight percentage: nickel 1.8wt%, silicon 0.4wt%, tin 0.2wt%, cobalt
0.5wt%, phosphorus 0.02wt%, magnesium 0.08wt%, iron 0.1wt%, zinc 36.5wt%, surplus are copper and inevitable impurity.
The preparation method is the same as that of Example 1 for above-mentioned brass alloy material.
Comparative example 1 is a technical solution disclosed in Chinese patent application of the publication No. for 102851530 A of CN, system
Standby brass alloys difference from Example 1 is that silicon, phosphorus, magnesium, iron, zinc are different with the dosage of copper in raw material components, other
Raw material dosage is the same as embodiment 1.
Comparative example 2:
A kind of brass alloys are made of the raw material of following weight percentage: nickel 2.5wt%, silicon 0.5wt%, tin 0.5wt%, cobalt
0.1wt%, phosphorus 0.05wt%, magnesium 0.1wt%, iron 0.05wt%, zinc 35.2wt%, surplus are copper and inevitable impurity.
The preparation method of above-mentioned brass alloy material is the same as embodiment 2.
Comparative example 2 is a technical solution disclosed in Chinese patent application of the publication No. for 102851530 A of CN, system
Standby brass alloys difference from Example 2 is that silicon, phosphorus, magnesium, iron, zinc are different with the dosage of copper in raw material components, other
Raw material dosage is the same as embodiment 2.
Comparative example 3:
A kind of brass alloys are made of the raw material of following weight percentage: nickel 2.2wt%, silicon 0.4wt%, tin 0.35wt%, cobalt
0.3wt%, phosphorus 0.05wt%, magnesium 0.2wt%, iron 0.08wt%, zinc 33wt%, surplus are copper and inevitable impurity.
The preparation method of above-mentioned brass alloy material is the same as embodiment 3.
Comparative example 3 is a technical solution disclosed in Chinese patent application of the publication No. for 102851530 A of CN, system
Standby brass alloys difference from Example 3 is that silicon, phosphorus, magnesium, iron, zinc are different with the dosage of copper in raw material components, other
Raw material dosage is the same as embodiment 3.
Comparative example 4:
A kind of brass alloys are made of the raw material of following weight percentage: nickel 2.2wt%, silicon 1.0wt%, manganese 0.35wt%, cobalt
0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, iron 0.02wt%, zinc 27.5wt%, surplus are copper and inevitable impurity.
The preparation method of above-mentioned brass alloy material is the same as embodiment 3.
The brass alloys difference from Example 3 of comparative example 4 is that, with manganese instead of tin in raw material components, other are former
Material and dosage are the same as embodiment 3.
Comparative example 5:
A kind of brass alloys are made of the raw material of following weight percentage: nickel 2.2wt%, silicon 1.0wt%, tin 0.35wt%, manganese
0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, iron 0.02wt%, zinc 27.5wt%, surplus are copper and inevitable impurity.
The preparation method of above-mentioned brass alloy material is the same as embodiment 3.
The brass alloys difference from Example 3 of comparative example 5 is that, with manganese instead of cobalt in raw material components, other are former
Material and dosage are the same as embodiment 3.
Comparative example 6:
A kind of brass alloys of high elastic modulus, are made of the raw material of following weight percentage: nickel 2.2wt%, silicon 1.0wt%, tin
0.35wt%, cobalt 0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, manganese 0.02wt%, zinc 27.5wt%, surplus are copper and can not keep away
The impurity exempted from.
The preparation method of above-mentioned brass alloy material is the same as embodiment 3.
The brass alloys difference from Example 3 of comparative example 6 is, with manganese instead of iron, other groups in raw material components
Divide and dosage is the same as embodiment 3.
The performance comparison test of brass alloys made from 1-3 of the embodiment of the present invention and comparative example 1-6:
(1) according to the bullet of GB/T 22315-2008 " metal material elasticity modulus and Poisson's ratio test method " test brass alloys
Property modulus.
(2) according to as defined in GB/T 228.1-2010 " metal material stretching test first part: room temperature test method "
Test method tests the tensile strength of brass alloys.
Test result is shown in Table 1.
Table 1
| Elasticity modulus (Gpa) | Tensile strength (MPa) | |
| Embodiment 1 | 119.1 | 735 |
| Embodiment 2 | 120.3 | 743 |
| Embodiment 3 | 122.5 | 765 |
| Comparative example 1 | 85.3 | 684 |
| Comparative example 2 | 79.2 | 632 |
| Comparative example 3 | 81.2 | 656 |
| Comparative example 4 | 73.5 | 510 |
| Comparative example 5 | 79.4 | 561 |
| Comparative example 6 | 71.2 | 519 |
From the test result in table 1 it may be concluded that the brass alloy material of 1-3 of the embodiment of the present invention all have it is very excellent
Elastic property and tensile strength；Meanwhile being influenced by performance brought by the compositional difference of comparative example 1-6 and embodiment 1-3,
It is found that brass alloys of the invention are by selection nickel, silicon, tin, cobalt, phosphorus, magnesium, iron, this eight kinds of elements of zinc according to specific proportion
Range, brass alloys obtained have beyond the elastic property expected.Especially, the technology optimal as the present invention of embodiment 3
Scheme is shown when addition element is nickel 2.2wt%, silicon 1.0wt%, tin 0.35wt%, cobalt 0.3wt%, phosphorus 0.2wt%, magnesium
When 1.5wt%, iron 0.02wt%, zinc 27.5wt%, brass alloys have highest elasticity modulus, well beyond this field skill
The expection of art personnel.Do not have preferable elasticity modulus without the comparative example 1-6 in the scope of the present invention, especially compares
Example 4-6, instead of tin, cobalt and ferro element, directly results in elasticity modulus and tensile strength compared to embodiment only with manganese element
3 substantially reduce.
The above is merely preferred embodiments of the present invention, practical range not for the purpose of limiting the invention.That is Fan Yiben
Equivalent changes and modifications made by the content of patent application the scope of the patents all should be technology scope of the invention.
Claims (5)
1. a kind of brass alloys of high elastic modulus, which is characterized in that be made of the raw material of following weight percentage: nickel 1.8-
2.5wt%, silicon 0.8-1.2wt%, tin 0.2-0.5wt%, cobalt 0.1-0.5wt%, phosphorus 0.1-0.3wt%, magnesium 1.2-1.8wt%,
Iron 0.01-0.03wt%, zinc 22.5-30.5wt%, surplus are copper and inevitable impurity.
2. a kind of brass alloys of high elastic modulus according to claim 1, which is characterized in that by following weight percentage
Raw material be made: nickel 1.8wt%, silicon 1.2wt%, tin 0.2wt%, cobalt 0.5wt%, phosphorus 0.1wt%, magnesium 1.8wt%, iron
0.01wt%, zinc 30.5wt%, surplus are copper and inevitable impurity.
3. a kind of brass alloy material of high elastic modulus according to claim 1, which is characterized in that by following weight hundred
The raw material of ratio is divided to be made: nickel 2.5wt%, silicon 0.8wt%, tin 0.5wt%, cobalt 0.1wt%, phosphorus 0.3wt%, magnesium 1.2wt%, iron
0.03wt%, zinc 22.5wt%, surplus are copper and inevitable impurity.
4. a kind of brass alloy material of high elastic modulus according to claim 1, which is characterized in that by following weight hundred
The raw material of ratio is divided to be made: nickel 2.2wt%, silicon 1.0wt%, tin 0.35wt%, cobalt 0.3wt%, phosphorus 0.2wt%, magnesium 1.5wt%, iron
0.02wt%, zinc 27.5wt%, surplus are copper and inevitable impurity.
5. a kind of preparation method of the brass alloys of high elastic modulus according to claim 1-4, feature exist
In, comprising the following steps:
(1) whole raw materials are added intermediate frequency furnace and carry out melting, and smelting temperature is 1150-1250 DEG C, stir evenly, soaking time
30-60min；
(2) swage is cast, and 1020-1100 DEG C of cast temperature, obtains brass alloys ingot casting；
(3) brass alloys ingot casting is carried out to pure fire processing immediately after hot extrusion at 900 DEG C, then cold working obtains material material.
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Cited By (1)
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| CN117604301A (en) * | 2023-11-24 | 2024-02-27 | 河南理工大学 | Preparation method of elastic refrigeration alloy |
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Application publication date: 20190212 |