CN108149130A - A kind of preparation method of high-pressure unit corrosion-and high-temp-resistant shell - Google Patents
A kind of preparation method of high-pressure unit corrosion-and high-temp-resistant shell Download PDFInfo
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- CN108149130A CN108149130A CN201711234363.1A CN201711234363A CN108149130A CN 108149130 A CN108149130 A CN 108149130A CN 201711234363 A CN201711234363 A CN 201711234363A CN 108149130 A CN108149130 A CN 108149130A
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Abstract
The invention discloses a kind of high-pressure unit preparation methods of corrosion-and high-temp-resistant shell, include the following steps：S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirs, then add in magnesium alloy and rare earth ferroalloy, stirring adjusts component, obtains aluminium alloy；S2, by aluminium alloy moulding by casting, obtain shell idiosome, it is thermally treated to obtain shell A；S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through plasma cladding, obtain coated shell, it is subsequently heat-treated, obtain high-pressure unit corrosion-and high-temp-resistant shell.A kind of high-pressure unit corrosion-and high-temp-resistant shell and preparation method thereof proposed by the present invention has good heat-resisting quantity, corrosion resistance and mechanical performance, and performance is stablized, and service life is long, is effectively improved high voltage package overall performance.
Description
Technical field
The present invention relates to the preparations of technical field of metal material more particularly to a kind of high-pressure unit corrosion-and high-temp-resistant shell
Method.
Background technology
High voltage package, rectification of name are line output transformers, and also referred to as row packet or row become, the high voltage package of display and the work of television set
It is basically identical to make principle, main function is to generate anode high voltage, in addition provides and focuses on, accelerates, grid Deng Ge roads voltage.Due to
High voltage package work in high temperature, high-frequency, high voltage, high current state, in addition the factors such as external ambient humidity or more dirt influence,
High voltage package casing overall performance is influenced very big.Therefore, a kind of high temperature resistant is developed, the high voltage package casing that corrosion-resistant, performance is stablized
It is current urgent problem.
Invention content
Technical problems based on background technology, the present invention propose a kind of high-pressure unit corrosion-and high-temp-resistant shell
Preparation method, obtained high-pressure unit shell have good heat-resisting quantity, corrosion resistance and mechanical performance, and performance is stablized, and use
Long lifespan is effectively improved high voltage package overall performance.
The present invention proposes a kind of preparation method of high-pressure unit corrosion-and high-temp-resistant shell, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, it is thermally treated to obtain shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, subsequently heat-treated, obtains high-pressure unit corrosion-and high-temp-resistant shell.
Preferably, in S1, aluminium alloy includes following components by weight percent：C：0.28-0.45%, Mg：0.06-
0.12%th, Al：0.1-0.2%, Si：0.52-0.8%, Ti：0.18-0.32%, Mn：0.15-0.42%, V：0.12-
0.24%th, Cr：6.8-8.2%, Co：0.05-0.12%, Ni：0.2-0.32%, W：0.15-0.25%, Zr：0.05-0.1%,
Mo：0.08-0.15%, La：0.05-0.1%, Ce：0.04-0.1%, Sm：0.04-0.1%, Nd：0.04-0.1%, remaining is
Fe and inevitable impurity.
Preferably, in S2, heat treatment process is as follows：Shell idiosome is warming up to 500-540 with the speed of 2-3.5 DEG C/min
DEG C, keep the temperature 1.5-2h, be then warming up to 680-720 DEG C with the speed of 1.2-2 DEG C/min, keep the temperature 1-1.5h, then with 0.5-1 DEG C/
The speed of min is warming up to 820-850 DEG C, keeps the temperature 12-20min, is then cooled to 350-400 DEG C, keeps the temperature 35-50min, then air-cooled
To room temperature, 2-3h is stood.
Preferably, in S3, the raw material of cladding powder includes by weight：60-80 parts of alloy powder, nano ceramic powder 5-
8 parts.
Preferably, alloy powder includes by weight percent：C：0.22-0.4%, Cr：12-14.5%, Al：0.4-
0.6%th, Ni：0.2-0.35%, Si：0.35-0.55%, Ti：0.15-0.3%, Zr：0.05-0.12%, Ce：0.1-0.2%,
Nd：0.1-0.2%, surplus are Fe and inevitable impurity.
Preferably, the raw material of nano ceramic powder by including by weight：Al2O3：40-50 parts, TiO2：5-10 parts, SiC：
10-20 parts, TiC：8-15 parts, BN：5-10 parts, MgO：5-10 parts.
Preferably, in S3, plasma cladding parameter is as follows：Protective gas is argon gas and argon flow amount is 6.5-8L/min,
Power is 2-2.2KW, and sweep speed 150-180mm/min, plasma arc spot diameter is 2.5-3.5mm.
Preferably, in S3, heat treatment process is as follows：Coated shell is warming up to 250-280 DEG C, keeps the temperature 1.5-2h, then
Room temperature is air-cooled to, stands 2-3d.
By adjusting component every in aluminium alloy in the present invention, the content of C, Cr, Mn, Ti, V are controlled, is inventive article
It lays a good foundation with good wearability, high temperature resistant and mechanical performance, is also easy to inventive article machine-shaping；By adjusting
The content of Mg, Al, Si, Ti, Mn in aluminium alloy have good deoxidation, dehydrogenation, desulfurization, nitrogen fixation effect, effectively reduce aluminium alloy
Middle harmful substance contents are effectively improved institutional framework of the present invention, and each component cooperates, and the strong carbide Dispersed precipitate of generation exists
In inventive article, nucleation rate is effectively improved, notable crystal grain thinning reduces carbide and formed on crystal boundary and continuous net-shaped inclined
To the dislocation density being effectively improved in inventive article improves inventive article intensity, toughness, high temperature resistant and corrosion resistance；Again
Rare earth element is added in aluminium alloy, further purifies aluminium alloy, inventive article internal organizational structure is effectively optimized, is eliminated
Dendrite disorder form in inventive article institutional framework further improves the dislocation density of inventive article interior tissue, enhancing
Inventive article overall performance；By rationally setting the heat treatment parameter of shell idiosome, shell idiosome institutional framework is effectively improved,
Thinning microstructure crystal grain improves inventive article stability, further improves inventive article overall performance；Coating material is adopted
With alloy powder and nano ceramic powder, and the ratio of both alloy powder, nano ceramic powder is controlled, by a small amount of ceramics
Powder is filled in alloy powder, then the proportioning by optimized alloy powder, nano ceramic powder, rationally sets plasma cladding
And process of thermal treatment parameter after cladding, obtained coating and shell B compatibilities are good, are tightly combined, not easily to fall off with cracking, together
When coating the good mechanical property of the alloy powder wearability excellent with nano ceramic powder, corrosion resistance, inoxidizability are had
The combination of machine effectively improves the performances such as corrosion-resistant, the wear-resisting and high temperature resistant of inventive article, extends inventive article service life.
A kind of preparation method of high-pressure unit corrosion-and high-temp-resistant shell proposed by the present invention, obtained high-pressure unit shell have good resistance to
High temperatures, corrosion resistance and mechanical performance, performance are stablized, and service life is long, are effectively improved high voltage package overall performance.
Specific embodiment
In the following, technical scheme of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell proposed by the present invention, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, it is thermally treated to obtain shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, subsequently heat-treated, obtains high-pressure unit corrosion-and high-temp-resistant shell.
Embodiment 2
A kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell proposed by the present invention, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, shell idiosome be warming up to 500 with the speed of 2 DEG C/min
DEG C, 2h is kept the temperature, is then warming up to 680 DEG C with the speed of 1.2 DEG C/min, keeps the temperature 1.5h, then be warming up to the speed of 0.5 DEG C/min
820 DEG C, 20min is kept the temperature, is then cooled to 400 DEG C, keeps the temperature 35min, then be air-cooled to room temperature, 3h is stood, obtains shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, and coated shell then is warming up to 250 DEG C, keeps the temperature 2h, is then air-cooled to room temperature, stands 3d, obtains
To high-pressure unit corrosion-and high-temp-resistant shell.
Wherein, in S1, aluminium alloy includes following components by weight percent：C：0.28%th, Mg：0.06%th, Al：0.1%th,
Si：0.8%th, Ti：0.18%th, Mn：0.42%th, V：0.24%th, Cr：6.8%th, Co：0.12%th, Ni：0.2%th, W：0.25%th,
Zr：0.05%th, Mo：0.15%th, La：0.05%th, Ce：0.1%th, Sm：0.04%th, Nd：0.04%, remaining is for Fe and unavoidably
Impurity；
In S3, the raw material of cladding powder includes by weight：80 parts of alloy powder, 8 parts of nano ceramic powder；Alloy powder
Include by weight percent：C：0.35%th, Cr：14.2%th, Al：0.55%th, Ni：0.3%th, Si：0.48%th, Ti：0.25%th,
Zr：0.1%th, Ce：0.18%th, Nd：0.12%, surplus is Fe and inevitable impurity；The raw material of nano ceramic powder is by pressing
Parts by weight include：Al2O3：48 parts, TiO2：6 parts, SiC：12 parts, TiC：10 parts, BN：6 parts, MgO：6 parts.
Embodiment 3
A kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell proposed by the present invention, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, shell idiosome be warming up to 525 with the speed of 2.6 DEG C/min
DEG C, 1.8h is kept the temperature, is then warming up to 700 DEG C with the speed of 1.5 DEG C/min, keeps the temperature 1.2h, then heat up with the speed of 0.8 DEG C/min
To 836 DEG C, 16min is kept the temperature, is then cooled to 365 DEG C, keeps the temperature 42min, then be air-cooled to room temperature, 2.5h is stood, obtains shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, and coated shell then is warming up to 270 DEG C, keeps the temperature 1.8h, is then air-cooled to room temperature, stands
2.5d obtains high-pressure unit corrosion-and high-temp-resistant shell.
Wherein, in S1, aluminium alloy includes following components by weight percent：C：0.34%th, Mg：0.1%th, Al：0.15%th,
Si：0.65%th, Ti：0.25%th, Mn：0.32%th, V：0.18%th, Cr：7.5%th, Co：0.09%th, Ni：0.26%th, W：0.2%th,
Zr：0.08%th, Mo：0.12%th, La：0.08%th, Ce：0.08%th, Sm：0.08%th, Nd：0.06%, remaining is Fe and can not keep away
The impurity exempted from；
In S3, the raw material of cladding powder includes by weight：60 parts of alloy powder, 5 parts of nano ceramic powder；Alloy powder
Include by weight percent：C：0.4%th, Cr：14.5%th, Al：0.6%th, Ni：0.35%th, Si：0.35%th, Ti：0.3%th, Zr：
0.05%th, Ce：0.2%th, Nd：0.1%, surplus is Fe and inevitable impurity；The raw material of nano ceramic powder is by by weight
Part includes：Al2O3：50 parts, TiO2：5 parts, SiC：20 parts, TiC：8 parts, BN：10 parts, MgO：10 parts.
Embodiment 4
A kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell proposed by the present invention, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, shell idiosome be warming up to 540 with the speed of 3.5 DEG C/min
DEG C, 1.5h is kept the temperature, is then warming up to 720 DEG C with the speed of 2 DEG C/min, keeps the temperature 1h, then 850 are warming up to the speed of 1 DEG C/min
DEG C, 12min is kept the temperature, is then cooled to 350 DEG C, keeps the temperature 50min, then be air-cooled to room temperature, 2h is stood, obtains shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, and coated shell then is warming up to 280 DEG C, keeps the temperature 1.5h, is then air-cooled to room temperature, stands 2d,
Obtain high-pressure unit corrosion-and high-temp-resistant shell.
Wherein, in S1, aluminium alloy includes following components by weight percent：C：0.45%th, Mg：0.12%th, Al：0.2%th,
Si：0.52%th, Ti：0.32%th, Mn：0.15%th, V：0.12%th, Cr：8.2%th, Co：0.05%th, Ni：0.32%th, W：0.15%th,
Zr：0.1%th, Mo：0.08%th, La：0.1%th, Ce：0.04%th, Sm：0.1%th, Nd：0.1%, remaining is for Fe and inevitably
Impurity；
In S3, the raw material of cladding powder includes by weight：70 parts of alloy powder, 6.5 parts of nano ceramic powder；Alloyed powder
End includes by weight percent：C：0.32%th, Cr：13.2%th, Al：0.5%th, Ni：0.25%th, Si：0.42%th, Ti：0.22%th,
Zr：0.1%th, Ce：0.15%th, Nd：0.15%, surplus is Fe and inevitable impurity；The raw material of nano ceramic powder is by pressing
Parts by weight include：Al2O3：45 parts, TiO2：8 parts, SiC：15 parts, TiC：12 parts, BN：8 parts, MgO：8 parts.
Embodiment 5
A kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell proposed by the present invention, includes the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirred, Ran Houjia
Enter magnesium alloy and rare earth ferroalloy, stir, adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, shell idiosome be warming up to 530 with the speed of 2.5 DEG C/min
DEG C, 1.6h is kept the temperature, is then warming up to 710 DEG C with the speed of 1.5 DEG C/min, keeps the temperature 1.2h, then heat up with the speed of 0.6 DEG C/min
To 840 DEG C, 15min is kept the temperature, is then cooled to 365 DEG C, keeps the temperature 45min, then be air-cooled to room temperature, 2.2h is stood, obtains shell A；
S3, shell A is cleaned, dry, sandblasting, obtains shell B, then cladding powder is coated in shell B outer surfaces, through wait from
Sub- cladding obtains coated shell, and coated shell then is warming up to 260 DEG C, keeps the temperature 1.8h, is then air-cooled to room temperature, stands 3d,
Obtain high-pressure unit corrosion-and high-temp-resistant shell.
Wherein, in S1, aluminium alloy includes following components by weight percent：C：0.42%th, Mg：0.1%th, Al：0.18%th,
Si：0.68%th, Ti：0.28%th, Mn：0.36%th, V：0.22%th, Cr：7.8%th, Co：0.1%th, Ni：0.3%th, W：0.22%th,
Zr：0.08%th, Mo：0.12%th, La：0.08%th, Ce：0.08%th, Sm：0.08%th, Nd：0.08%, remaining is Fe and can not keep away
The impurity exempted from；
In S3, the raw material of cladding powder includes by weight：75 parts of alloy powder, 5.5 parts of nano ceramic powder；Alloyed powder
End includes by weight percent：C：0.22%th, Cr：12%th, Al：0.4%th, Ni：0.2%th, Si：0.55%th, Ti：0.15%th, Zr：
0.12%th, Ce：0.1%th, Nd：0.2%, surplus is Fe and inevitable impurity；The raw material of nano ceramic powder is by by weight
Part includes：Al2O3：40 parts, TiO2：10 parts, SiC：10 parts, TiC：15 parts, BN：5 parts, MgO：5 parts.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of high-pressure unit preparation method of corrosion-and high-temp-resistant shell, which is characterized in that include the following steps：
S1, melting will be carried out in scrap iron, steel scrap, ferrochrome, manganese ingot, nickel ingot and graphite powder input smelting furnace, stirs, then add in magnesium
Aluminium alloy and rare earth ferroalloy, stirring adjust component, obtain aluminium alloy；
S2, by aluminium alloy moulding by casting, obtain shell idiosome, it is thermally treated to obtain shell A；
S3, shell A is cleaned, dry, sandblasting, shell B is obtained, then cladding powder is coated in shell B outer surfaces, through plasma melting
It covers, obtains coated shell, it is subsequently heat-treated, obtain high-pressure unit corrosion-and high-temp-resistant shell.
2. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 1, which is characterized in that in S1, close
Golden liquid includes following components by weight percent：C：0.28-0.45%, Mg：0.06-0.12%, Al：0.1-0.2%, Si：
0.52-0.8%, Ti：0.18-0.32%, Mn：0.15-0.42%, V：0.12-0.24%, Cr：6.8-8.2%, Co：0.05-
0.12%th, Ni：0.2-0.32%, W：0.15-0.25%, Zr：0.05-0.1%, Mo：0.08-0.15%, La：0.05-
0.1%th, Ce：0.04-0.1%, Sm：0.04-0.1%, Nd：0.04-0.1%, remaining is Fe and inevitable impurity.
3. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 1, which is characterized in that in S2, heat
Processing procedure is as follows：Shell idiosome is warming up to 500-540 DEG C with the speed of 2-3.5 DEG C/min, keeps the temperature 1.5-2h, then with
The speed of 1.2-2 DEG C/min is warming up to 680-720 DEG C, keeps the temperature 1-1.5h, then be warming up to 820- with the speed of 0.5-1 DEG C/min
850 DEG C, 12-20min is kept the temperature, is then cooled to 350-400 DEG C, keeps the temperature 35-50min, then be air-cooled to room temperature, stands 2-3h.
4. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 1, which is characterized in that in S3, melt
The raw material at whiting end includes by weight：60-80 parts of alloy powder, 5-8 parts of nano ceramic powder.
5. the preparation method of the 4 high-pressure unit corrosion-and high-temp-resistant shells is wanted according to right, which is characterized in that alloy powder is pressed
Mass percent includes：C：0.22-0.4%, Cr：12-14.5%, Al：0.4-0.6%, Ni：0.2-0.35%, Si：0.35-
0.55%th, Ti：0.15-0.3%, Zr：0.05-0.12%, Ce：0.1-0.2%, Nd：0.1-0.2%, surplus are Fe and can not
The impurity avoided.
6. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 4, which is characterized in that nano ceramics
The raw material of powder by including by weight：Al2O3：40-50 parts, TiO2：5-10 parts, SiC：10-20 parts, TiC：8-15 parts, BN：
5-10 parts, MgO：5-10 parts.
7. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 1, which is characterized in that in S3, etc.
Ion cladding parameter is as follows：Protective gas is argon gas and argon flow amount is 6.5-8L/min, power 2-2.2KW, sweep speed
For 150-180mm/min, plasma arc spot diameter is 2.5-3.5mm.
8. the preparation method of high-pressure unit corrosion-and high-temp-resistant shell according to claim 1, which is characterized in that in S3, heat
Processing procedure is as follows：Coated shell is warming up to 250-280 DEG C, keeps the temperature 1.5-2h, is then air-cooled to room temperature, stands 2-3d.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876650A (en) * | 2020-07-15 | 2020-11-03 | 马鞍山欧凯新材料科技有限公司 | High-temperature wear-resistant alloy material for rolling mill guide roller and preparation method thereof |
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| JPH06240354A (en) * | 1993-02-16 | 1994-08-30 | Nippon Steel Corp | Production of tough thick steel plate |
| JP3508667B2 (en) * | 2000-01-13 | 2004-03-22 | 住友金属工業株式会社 | High Cr ferritic heat resistant steel excellent in high temperature strength and method for producing the same |
| JP4220666B2 (en) * | 2000-11-16 | 2009-02-04 | 新日本製鐵株式会社 | Highly corrosion-resistant steel pipe for hydroforming with excellent formability and method for producing the same |
| CN106811673A (en) * | 2016-12-27 | 2017-06-09 | 芜湖锐华暖通科技有限公司 | A kind of corrosion-resistant anti-oxidant low abrasion wear-resistant ball and preparation method thereof |
| CN106834922A (en) * | 2016-12-27 | 2017-06-13 | 芜湖锐华暖通科技有限公司 | A kind of ball mill coating wear-resistant ball and preparation method thereof |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06240354A (en) * | 1993-02-16 | 1994-08-30 | Nippon Steel Corp | Production of tough thick steel plate |
| JP3508667B2 (en) * | 2000-01-13 | 2004-03-22 | 住友金属工業株式会社 | High Cr ferritic heat resistant steel excellent in high temperature strength and method for producing the same |
| JP4220666B2 (en) * | 2000-11-16 | 2009-02-04 | 新日本製鐵株式会社 | Highly corrosion-resistant steel pipe for hydroforming with excellent formability and method for producing the same |
| CN106811673A (en) * | 2016-12-27 | 2017-06-09 | 芜湖锐华暖通科技有限公司 | A kind of corrosion-resistant anti-oxidant low abrasion wear-resistant ball and preparation method thereof |
| CN106834922A (en) * | 2016-12-27 | 2017-06-13 | 芜湖锐华暖通科技有限公司 | A kind of ball mill coating wear-resistant ball and preparation method thereof |
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| CN111876650A (en) * | 2020-07-15 | 2020-11-03 | 马鞍山欧凯新材料科技有限公司 | High-temperature wear-resistant alloy material for rolling mill guide roller and preparation method thereof |
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