CN103882265B - A kind of nickel-base high-temperature alloy material and preparation method thereof for air bleeding valve - Google Patents
A kind of nickel-base high-temperature alloy material and preparation method thereof for air bleeding valve Download PDFInfo
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Abstract
A kind of air bleeding valve nickel-base high-temperature alloy material, chemical element composition and mass percent thereof that it contains are: carbon 0.05-0.15, aluminium 1.2-1.5, tungsten 4.0-4.2, manganese 3.6-3.8, molybdenum 0.02-0.05, chromium 0.005-0.008, vanadium 0.1-0.2, zirconium 0.02-0.04, iron 24.0-25.5, antimony 0.2-0.5, nickel surplus. Nickel alloy of the present invention, by adding the multiple elements such as tungsten, molybdenum, antimony, makes alloy grain refinement, has improved heat-resisting quantity and the resistance to exhaust gas corrosion performance of alloy, and intensity is high, wearability is good, can long-term work at 600-1000 DEG C, and reduced the use amount of chromium, reduce cost. Refining agent of the present invention, for Foundry Production, can make the degree of porosity in foundry goods reduce 1-2 degree, and oxide inclusion, 2 grades of left and right, obviously improves yield rate.
Description
Technical field
The present invention relates to the manufacture field of metal alloy compositions, relate in particular to a kind of air bleeding valve nickel-base high-temperature alloy material and preparation method thereof.
Background technology
Nickel alloy has good mechanics, physics and chemistry performance, also has excellent non-oxidizability, corrosion resistance and elevated temperature strength. Nickel base superalloy has higher intensity and anti-oxidant, resistance to combustion gas corrosion ability under 650～1000 DEG C of high temperature, is the class alloy most widely used in high temperature alloy, elevated temperature strength is the highest. Air bleeding valve uses in a large number with nickel base superalloy at present, but nickel base superalloy chrome content is high, and cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of air bleeding valve nickel-base high-temperature alloy material and preparation method thereof, this Cu alloy material has advantages of that intensity is high, wearability good, high temperature resistant, resistance to exhaust gas corrosion, cost are low.
Technical scheme of the present invention is as follows:
A kind of air bleeding valve nickel-base high-temperature alloy material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.05-0.15, aluminium 1.2-1.5, tungsten 4.0-4.2, manganese 3.6-3.8, molybdenum 0.02-0.05, chromium 0.005-0.008, vanadium 0.1-0.2, zirconium 0.02-0.04, iron 24.0-25.5, antimony 0.2-0.5, nickel surplus.
The production method of nickel-base high-temperature alloy material for described air bleeding valve, is characterized in that:
(1), preparing pure nickel and useless nickel alloy originates as Ni-based matter in 1:0.3-0.5 ratio, pure nickel is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add useless nickel fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) iron, chromium, carbon; (2) aluminium, manganese, antimony; (3) molybdenum, tungsten; (4) other residual components; The each batch of time interval of dropping into element is 21-25 minute, after feeding intake, stirs.
Described casting after-baking is: be first warming up to 810-830 DEG C by room temperature with 230-240 DEG C/h of speed, and insulation 50-70 minute, then be warming up to 1220-1235 DEG C with 230-240 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 320-340 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 850-870 DEG C with 200-220 DEG C/h of speed again, insulation 50-70 minute, then be warming up to 1120-1130 DEG C with 200-220 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 300-320 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 880-890 DEG C with 200-220 DEG C/h of speed again, insulation 16-17 hour, then be cooled to 80-100 DEG C with 270-280 DEG C/h of speed, take out air cooling and get final product.
Described refining agent is made up of the raw material of following weight portion: clay 10-12, schmigel 3-4, aluminium nitride 5-6, kaolin 8-10, celestine 1-2, trees ashes 1-2, aluminium hydroxide 8-10, jade powder 3-4, montmorillonite 1-2, Fluorspar Powder 3-4, Paris white 4-5, Bi2O32-3; Its preparation method is that clay, schmigel, aluminium nitride, kaolin, celestine, trees ashes, aluminium hydroxide, jade powder, montmorillonite are mixed, be heated to 2600-3000 DEG C, stir 1-2 hour, after cooling, be added in the hydrochloric acid solution of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
Beneficial effect of the present invention
Nickel alloy of the present invention, by adding the multiple elements such as tungsten, molybdenum, antimony, makes alloy grain refinement, has improved heat-resisting quantity and the resistance to exhaust gas corrosion performance of alloy, and intensity is high, wearability is good, can long-term work at 600-1000 DEG C, and reduced the use amount of chromium, reduce cost. By reasonable control casting post-processing temperature, throwing raw materials in batches, uses useless nickel as raw material, makes alloy mechanical property better, stay in grade homogeneous. Refining agent of the present invention, for Foundry Production, can make the degree of porosity in foundry goods reduce 1-2 degree, and oxide inclusion, 2 grades of left and right, obviously improves yield rate.
Detailed description of the invention
A kind of air bleeding valve nickel-base high-temperature alloy material, chemical element composition and mass percent thereof that it contains are: carbon 0.05-0.15, aluminium 1.2-1.5, tungsten 4.0-4.2, manganese 3.6-3.8, molybdenum 0.02-0.05, chromium 0.005-0.008, vanadium 0.1-0.2, zirconium 0.02-0.04, iron 24.0-25.5, antimony 0.2-0.5, nickel surplus.
Described air bleeding valve is as follows by the production method of nickel-base high-temperature alloy material:
(1), preparing pure nickel and useless nickel alloy originates as Ni-based matter in 1:0.4 ratio, pure nickel is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add useless nickel fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) iron, chromium, carbon; (2) aluminium, manganese, antimony; (3) molybdenum, tungsten; (4) other residual components; The each batch of time interval of dropping into element is 23 minutes, after feeding intake, stirs.
Described casting after-baking is: be first warming up to 820 DEG C by room temperature with 235 DEG C/h of speed, be incubated 60 minutes, then be warming up to 1226 DEG C with 235 DEG C/h of speed, insulation 3.5h; Be cooled to 90 DEG C with 330 DEG C/h of speed again, be incubated 1.5 hours; Be warming up to 860 DEG C with 210 DEG C/h of speed again, be incubated 60 minutes, then be warming up to 1125 DEG C with 210 DEG C/h of speed, insulation 3.5h; Be cooled to 90 DEG C with 310 DEG C/h of speed again, be incubated 1.5 hours; Be warming up to 885 DEG C with 210 DEG C/h of speed again, be incubated 1.5 hours, then be cooled to 90 DEG C with 275 DEG C/h of speed, take out air cooling and get final product.
Described refining agent by following weight portion (kilogram) raw material make: clay 10, schmigel 4, aluminium nitride 5, kaolin 8, celestine 1, trees ashes 2, aluminium hydroxide 8, jade powder 4, montmorillonite 1, Fluorspar Powder 4, Paris white 4, Bi2O33; Its preparation method is that clay, schmigel, aluminium nitride, kaolin, celestine, trees ashes, aluminium hydroxide, jade powder, montmorillonite are mixed, be heated to 2600-3000 DEG C, stir 1-2 hour, after cooling, be added in the hydrochloric acid solution of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
The present embodiment air bleeding valve nickel-base high-temperature alloy material, tensile strength б b is 1141Mpa, yield strength 921MPa, hardness number HB is 106, percentage elongation 13%.
Claims (3)
1. an air bleeding valve nickel-base high-temperature alloy material, is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 0.05-0.15, aluminium 1.2-1.5, tungsten 4.0-4.2, manganese 3.6-3.8, molybdenum 0.02-0.05, chromium 0.005-0.008, vanadium 0.1-0.2, zirconium 0.02-0.04, iron 24.0-25.5, antimony 0.2-0.5, nickel surplus;
The production method of nickel-base high-temperature alloy material for described air bleeding valve:
(1), preparing pure nickel and useless nickel alloy originates as Ni-based matter in 1:0.3-0.5 ratio, pure nickel is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add useless nickel fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) iron, chromium, carbon; (2) aluminium, manganese, antimony; (3) molybdenum, tungsten; (4) other residual components; The each batch of time interval of dropping into element is 21-25 minute, after feeding intake, stirs;
Described casting after-baking is: be first warming up to 810-830 DEG C by room temperature with 230-240 DEG C/h of speed, and insulation 50-70 minute, then be warming up to 1220-1235 DEG C with 230-240 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 320-340 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 850-870 DEG C with 200-220 DEG C/h of speed again, insulation 50-70 minute, then be warming up to 1120-1130 DEG C with 200-220 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 300-320 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 880-890 DEG C with 200-220 DEG C/h of speed again, insulation 16-17 hour, then be cooled to 80-100 DEG C with 270-280 DEG C/h of speed, take out air cooling and get final product.
2. air bleeding valve nickel-base high-temperature alloy material according to claim 1, is characterized in that: described refining agent is made up of the raw material of following weight portion: clay 10-12, schmigel 3-4, aluminium nitride 5-6, kaolin 8-10, celestine 1-2, trees ashes 1-2, aluminium hydroxide 8-10, jade powder 3-4, montmorillonite 1-2, Fluorspar Powder 3-4, Paris white 4-5, Bi2O32-3; Its preparation method is that clay, schmigel, aluminium nitride, kaolin, celestine, trees ashes, aluminium hydroxide, jade powder, montmorillonite are mixed, be heated to 2600-3000 DEG C, stir 1-2 hour, after cooling, be added in the hydrochloric acid solution of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
3. the production method of nickel-base high-temperature alloy material for air bleeding valve according to claim 1, is characterized in that:
(1), preparing pure nickel and useless nickel alloy originates as Ni-based matter in 1:0.3-0.5 ratio, pure nickel is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying component and carry out alloying, then add useless nickel fusing, add refining agent double refining, detection and adjust chemical element component content to qualified, casting, casting after-baking;
(2) in alloying process, to the lot sequence that drops into alloying element in stove be: (1) iron, chromium, carbon; (2) aluminium, manganese, antimony; (3) molybdenum, tungsten; (4) other residual components; The each batch of time interval of dropping into element is 21-25 minute, after feeding intake, stirs;
Described casting after-baking is: be first warming up to 810-830 DEG C by room temperature with 230-240 DEG C/h of speed, and insulation 50-70 minute, then be warming up to 1220-1235 DEG C with 230-240 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 320-340 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 850-870 DEG C with 200-220 DEG C/h of speed again, insulation 50-70 minute, then be warming up to 1120-1130 DEG C with 200-220 DEG C/h of speed, insulation 3-4h; Be cooled to 80-100 DEG C with 300-320 DEG C/h of speed again, insulation 1-2 hour; Be warming up to 880-890 DEG C with 200-220 DEG C/h of speed again, insulation 16-17 hour, then be cooled to 80-100 DEG C with 270-280 DEG C/h of speed, take out air cooling and get final product.
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| CN201410064579.8A CN103882265B (en) | 2014-02-26 | 2014-02-26 | A kind of nickel-base high-temperature alloy material and preparation method thereof for air bleeding valve |
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| CN111074183B (en) * | 2019-12-21 | 2020-11-13 | 钢铁研究总院 | Heat treatment method for preventing abnormal growth of heat-resistant alloy thick-wall pipe crystal grains |
| CN111172431B (en) * | 2019-12-30 | 2021-10-22 | 江阴鑫宝利金属制品有限公司 | Small-displacement turbocharger impeller and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429608A (en) * | 2007-11-06 | 2009-05-13 | 江苏兴海特钢有限公司 | Heat-resistant alloy for exhaust valve and process for producing the same |
| CN102808111A (en) * | 2012-08-24 | 2012-12-05 | 杨学焦 | Preparation method for nickel-based superalloy for exhaust valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK166219C (en) * | 1991-01-23 | 1993-08-16 | Man B & W Diesel Gmbh | VALVE WITH HAIR PILOT |
| US20100272597A1 (en) * | 2009-04-24 | 2010-10-28 | L. E. Jones Company | Nickel based alloy useful for valve seat inserts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101429608A (en) * | 2007-11-06 | 2009-05-13 | 江苏兴海特钢有限公司 | Heat-resistant alloy for exhaust valve and process for producing the same |
| CN102808111A (en) * | 2012-08-24 | 2012-12-05 | 杨学焦 | Preparation method for nickel-based superalloy for exhaust valve |
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