CN106702236A - High-strength easy-to-machine copper aluminum magnesium alloy water meter shell and preparation method thereof - Google Patents
High-strength easy-to-machine copper aluminum magnesium alloy water meter shell and preparation method thereof Download PDFInfo
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- CN106702236A CN106702236A CN201611077805.1A CN201611077805A CN106702236A CN 106702236 A CN106702236 A CN 106702236A CN 201611077805 A CN201611077805 A CN 201611077805A CN 106702236 A CN106702236 A CN 106702236A
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- water meter
- meter housing
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
-
- 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
- C22C1/026—Alloys based on aluminium
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
Abstract
The invention discloses a high-strength easy-to-machine copper aluminum magnesium alloy water meter shell. The high-strength easy-to-machine copper aluminum magnesium alloy water meter shell is characterized by comprising the following components in percentage by weight: 8.00-15.5% of Cu, 0.2-4.50% of Si, 1.5-6.50% of Mg, 0.50-1.80% of Mn, 0.15-0.25% of Ti, 0.03-015% of B, 0.05-0.15% of RE, 0.01-0.1% of Sr, 0.005-0.01% of Zr, 0.005-0.01% of Be, and the balance of Al. The prepared water meter shell has the following advantages: (1) the mechanical performance is better; and when the obtained water meter shell is mounted outdoors, the strength is better to protect the total water meter from being damaged; (2) the water meter shell still has better mechanical performance under weak-acid environment for a long time in outdoor use; (3) the whole shell still has better mechanical performance after outdoor exposure under the sun for a long time; and (4) the prepared water meter shell is simpler in production process, and is easy to machine and operate.
Description
Technical field
The present invention relates to a kind of method and its product for manufacturing aluminum alloy water meter case.
Background technology
The watchcase of the water meter of water measurement amount be always along cylinder iron, casting brass manufacture.The water meter of iron casting, advantage
It is good mechanical property, price is low, has the disadvantage watchcase weight, more importantly poor corrosion resistance, easily causes secondary pollution.Casting is yellow
The advantage of copper is good mechanical property, has the disadvantage that casting brass is leaded, so as to produce serious lead contamination, in addition, also exist
Watchcase weight, the shortcoming of high cost.Advantage of the aluminium alloy with its light weight, low cost is already used for aircraft industry, afterwards with casting
The development of aluminium alloy, is also widely used in auto industry.But, at present and be not used for manufacture water meter housing, that is to say, that it is existing
Aluminium alloy does not adapt to the severe working environment of water meter and the requirement to mechanical performance.Water meter housing its inwall is chronically at water
Under immersion, influenceed by water and impurities in water, it is desirable to it more long interior during use, 8 years, 10 years, it is even longer when
Between, require machinery, the chemical property for keeping good.
At this stage, although the of the pH value of running water about 6.5 or so is neutral (pH=7.0) because of water, but nature
Water can dissolve in certain density carbon dioxide mostly, and in addition added with chlorine in running water, for sterilizing, chlorine can be produced on a small quantity in water
Hypochlorous acid, makes water be in faintly acid.Under mildly acidic conditions, water meter intensity can decline slightly, for a long time using water meter can be caused strong
Degree declines, and causes certain problem.
The content of the invention
In view of the shortcomings of the prior art, processed it is an object of the invention to provide a kind of high strength easy and existed for a long time
Cu-Al-Mg alloy water meter housing of loss of strength and preparation method thereof is not resulted under acid condition yet.
To achieve the above object, the invention provides following technical scheme：
A kind of high strength easy processes Cu-Al-Mg alloy water meter housing, including following percetage by weight composition：
Cu：8.00%~15.5%；
Si：0.2%~4.50%；
Mg：1.5%~6.50%；
Mn：0.50%~1.80%；
Ti：0.15%~0.25%；
B：0.03%~0.15%；
RE：0.05%~0.15%；
Sr：0.01%~0.1%；
Zr：0.005%~0.01%；
Be：0.005%~0.01%；
Balance of Al.
As a further improvement on the present invention：
Cu：10.2%~15.5%；
Si：2.5~4.50%；
Mg：3.5%~6.50%；
Mn：1%~1.80%；
Ti：0.2%~0.25%；
B：0.08%~0.15%；
RE：0.08%~0.15%；
Sr：0.05%~0.1%；
Zr：0.008%~0.01%；
Be：0.008%~0.01%；
Balance of Al.
As a further improvement on the present invention：
Cu：13.5%；
Si：3.5%；
Mg：5.5%；
Mn：1.5%；
Ti：0.2%；
B：0.1%；
RE：0.1%；
Sr：0.1；
Zr：0.01%；
Be：0.01%；
Balance of Al.
A kind of high strength easy processes the preparation method of Cu-Al-Mg alloy water meter housing：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, melting temperature are put into
800 DEG C of degree；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser, total addition at 650 DEG C
It is the 0.2% of furnace charge amount, stirs 10 minutes, until slag is separated with molten metal, stand 10 minutes, purification is skimmed, and is sprinkled into coverture
Liquid level is avoided to expose；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes,
Even stirring, then, stands 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, enters
Row cast；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Come out of the stove immediately hot water quenching or
Oil quenching, water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is 160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting machine of carrying out of heat treatment is added
Work, the water meter housing needed for obtaining；Shot blasting on surface treatment, surface chemistry pretreatment, and sun are carried out to the water meter housing after processing
Pole oxidation processes.
As a further improvement on the present invention：
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
As a further improvement on the present invention：
The coverture consumption is the 2% of total amount.
The water meter case prepared by the present invention is had the following advantages that：
1st, mechanical property preferably, the water meter case for obtaining when open air is installed to, with preferable intensity, it is ensured that overall water
Table is damaged.
When the 2nd, using out of doors, for a long time under weak acid environment, still with preferable mechanical property.
3rd, it is exposed to the sun out of doors for a long time by the sun, whole housing still has preferable mechanical property.
4th, water meter case prepared by the present invention, relatively simple in process of production, it is easy to processing and operation.
Specific embodiment
Embodiment one：
A kind of high strength easy processes Cu-Al-Mg alloy water meter housing, including following percetage by weight composition：
Cu：8%；
Si：2.50%；
Mg：6.50%；
Mn：1%；
Ti：0.15%；
B：0.08%；
RE：0.15%；
Sr：0.05%；
Zr：0.005%；
Be：0.008%；
Balance of Al.
A kind of high strength easy processes the preparation method of Cu-Al-Mg alloy water meter housing：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, melting temperature are put into
800 DEG C of degree；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser, total addition at 650 DEG C
It is the 0.2% of furnace charge amount, stirs 10 minutes, until slag is separated with molten metal, stand 10 minutes, purification is skimmed, and is sprinkled into coverture
Liquid level is avoided to expose；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes,
Even stirring, then, stands 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, enters
Row cast；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Come out of the stove immediately hot water quenching or
Oil quenching, water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is 160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting machine of carrying out of heat treatment is added
Work, the water meter housing needed for obtaining；Shot blasting on surface treatment, surface chemistry pretreatment, and sun are carried out to the water meter housing after processing
Pole oxidation processes.
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
The coverture consumption is the 2% of total amount.
Embodiment two：
A kind of high strength easy processes Cu-Al-Mg alloy water meter housing, including following percetage by weight composition：
Cu：10.2%；
Si：4.50%；
Mg：3.50%；
Mn：0.5%；
Ti：0.2%；
B：0.15%；
RE：0.08%；
Sr：0.01%；
Zr：0.008%；
Be：0.01%；
Balance of Al.
A kind of high strength easy processes the preparation method of Cu-Al-Mg alloy water meter housing：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, melting temperature are put into
800 DEG C of degree；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser, total addition at 650 DEG C
It is the 0.2% of furnace charge amount, stirs 10 minutes, until slag is separated with molten metal, stand 10 minutes, purification is skimmed, and is sprinkled into coverture
Liquid level is avoided to expose；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes,
Even stirring, then, stands 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, enters
Row cast；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Come out of the stove immediately hot water quenching or
Oil quenching, water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is 160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting machine of carrying out of heat treatment is added
Work, the water meter housing needed for obtaining；Shot blasting on surface treatment, surface chemistry pretreatment, and sun are carried out to the water meter housing after processing
Pole oxidation processes.
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
The coverture consumption is the 2% of total amount.
Embodiment three
A kind of high strength easy processes Cu-Al-Mg alloy water meter housing, including following percetage by weight composition：
Cu：13.5%；
Si：0.2%；
Mg：1.5%；
Mn：1.8%；
Ti：0.25%；
B：0.03%；
RE：0.05%；
Sr：0.05%；
Zr：0.01%；
Be：0.005%；
Balance of Al.
A kind of high strength easy processes the preparation method of Cu-Al-Mg alloy water meter housing：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, melting temperature are put into
800 DEG C of degree；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser, total addition at 650 DEG C
It is the 0.2% of furnace charge amount, stirs 10 minutes, until slag is separated with molten metal, stand 10 minutes, purification is skimmed, and is sprinkled into coverture
Liquid level is avoided to expose；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes,
Even stirring, then, stands 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, enters
Row cast；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Come out of the stove immediately hot water quenching or
Oil quenching, water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is 160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting machine of carrying out of heat treatment is added
Work, the water meter housing needed for obtaining；Shot blasting on surface treatment, surface chemistry pretreatment, and sun are carried out to the water meter housing after processing
Pole oxidation processes.
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
The coverture consumption is the 2% of total amount.
Example IV：
A kind of high strength easy processes Cu-Al-Mg alloy water meter housing, including following percetage by weight composition：
Cu：13.5%；
Si：3.5%；
Mg：5.5%；
Mn：1.5%；
Ti：0.2%；
B：0.1%；
RE：0.1%；
Sr：0.1；
Zr：0.01%；
Be：0.01%；
Balance of Al.
A kind of high strength easy processes the preparation method of Cu-Al-Mg alloy water meter housing：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, melting temperature are put into
800 DEG C of degree；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser, total addition at 650 DEG C
It is the 0.2% of furnace charge amount, stirs 10 minutes, until slag is separated with molten metal, stand 10 minutes, purification is skimmed, and is sprinkled into coverture
Liquid level is avoided to expose；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes,
Even stirring, then, stands 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, enters
Row cast；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Go out
Stove hot water quenching immediately or oil quenching, water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is
160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting that will be heat-treated
Part is machined out, the water meter housing needed for obtaining；Surface is carried out to the water meter housing after processing
Bead, surface chemistry pretreatment, and anodized.
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
The coverture consumption is the 2% of total amount.
Experiment：Material is made cylindrical tensile sample, mechanical test is carried out at room temperature；
The aqueous solution that pH value is 6.0 is prepared into by hydrochloric acid, cylindrical tensile sample is soaked wherein 7 days, carry out mechanics
Test；
Cylindrical tensile sample is toasted 7 days under uviol lamp, mechanical test is carried out.
The water meter case prepared by the present invention is had the following advantages that：
1st, mechanical property preferably, the water meter case for obtaining when open air is installed to, with preferable intensity, it is ensured that overall water
Table is damaged.
When the 2nd, using out of doors, for a long time under weak acid environment, still with preferable mechanical property.
3rd, it is exposed to the sun out of doors for a long time by the sun, whole housing still has preferable mechanical property.
4th, water meter case prepared by the present invention, relatively simple in process of production, it is easy to processing and operation.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of high strength easy processes Cu-Al-Mg alloy water meter housing, it is characterised in that：Including following percetage by weight composition：
Cu：8.00%~15.5%；
Si：0.2%~4.50%；
Mg：1.5%~6.50%；
Mn：0.50%~1.80%；
Ti：0.15%~0.25%；
B：0.03%~0.15%；
RE：0.05%~0.15%；
Sr：0.01%~0.1%；
Zr：0.005%~0.01%；
Be：0.005%~0.01%；
Balance of Al.
2. a kind of high strength easy according to claim 1 processes Cu-Al-Mg alloy water meter housing, it is characterised in that：
Cu：10.2%~15.5%；
Si：2.5~4.50%；
Mg：3.5%~6.50%；
Mn：1%~1.80%；
Ti：0.2%~0.25%；
B：0.08%~0.15%；
RE：0.08%~0.15%；
Sr：0.05%~0.1%；
Zr：0.008%~0.01%；
Be：0.008%~0.01%；
Balance of Al.
3. a kind of high strength easy according to claim 2 processes Cu-Al-Mg alloy water meter housing,
It is characterized in that：
Cu：13.5%；
Si：3.5%；
Mg：5.5%；
Mn：1.5%；
Ti：0.2%；
B：0.1%；
RE：0.1%；
Sr：0.1；
Zr：0.01%；
Be：0.01%；
Balance of Al.
4. a kind of high strength easy as described in claims 1 to 3 processes the preparation method of Cu-Al-Mg alloy water meter housing, its feature
It is：
Step one：By proportioning (percentage by weight) dispensing；
Step 2：Melting：By the dispensing of said ratio, in addition to Ti, Sr, RE, intermediate frequency furnace melting, smelting temperature are put into
800℃；
Step 3：Refining and purified treatment：Adjustment melt temperature adds refinery by de-gassing cleanser at 650 DEG C, and total addition is stove
The 0.2% of doses, is stirred 10 minutes, until slag is separated with molten metal, stands 10 minutes, and purification is skimmed, and is sprinkled into coverture and is avoided
Liquid level exposes；
Step 4：Rotten, micronization processes：By temperature control at 650 DEG C, after adding Ti, Sr and RE, melting 20 minutes, uniformly stir
Mix, then, stand 30 minutes；
Step 5：Liquid level protection, cast and cast form in stove：Temperature control takes the scum silica frost of liquid level off at 650 DEG C, is poured
Note；
Step 6：Metal mold is heated to 150 DEG C, cast, so as to obtain the water meter housing casting of cast aluminium alloy gold；
Step 7：Heat treatment：400 DEG C of heating and thermal insulation temperature, soaking time 8~25 hours；Hot water immediately of coming out of the stove quenches or oil quenching,
Water or Oil-temperature control are at 80 DEG C；Heating and thermal insulation temperature is 160 DEG C, soaking time 5 hours；Come out of the stove and be air cooled to room temperature；
Step 8：Machining and chemistry, electrochemicial oxidation：The water meter housing casting of heat treatment is machined out, is obtained
Obtain required water meter housing；Shot blasting on surface treatment, surface chemistry pretreatment, and anodic oxidation are carried out to the water meter housing after processing
Treatment.
5. a kind of high strength easy according to claim 4 processes the preparation method of Cu-Al-Mg alloy water meter housing, its feature
It is：
Coverture in the step 3 is constituted including following percetage by weight：
MgO：20%
CaO：16%
SiO2：22%
Al2O3：15%
NaF：13%
Na2CO3：14%.
6. a kind of high strength easy according to claim 5 processes the preparation method of Cu-Al-Mg alloy water meter housing, its feature
It is：The coverture consumption is the 2% of total amount.
7. the water meter housing that a kind of method described in any one claim according to the claims 4 to 6 is manufactured.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165908A (en) * | 2018-01-26 | 2018-06-15 | 宁波华成阀门有限公司 | A kind of high abrasion manganese brass and its manufacturing method |
| CN110885940A (en) * | 2018-09-10 | 2020-03-17 | 嘉丰工业科技（惠州）有限公司 | Rare earth aluminum alloy material and preparation method thereof |
| CN110885943A (en) * | 2018-09-10 | 2020-03-17 | 嘉丰工业科技（惠州）有限公司 | High-ductility and high-strength rare earth aluminum alloy material and preparation method thereof |
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| CN101392340A (en) * | 2008-11-14 | 2009-03-25 | 周岳健 | Method for producing water meter case by cast aluminum alloy and products thereof |
| CN101445879B (en) * | 2009-01-13 | 2010-07-28 | 周岳建 | Method for producing water meter casing by using corrosion-resisting aluminum casting alloy and products thereof |
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