CN100458241C - Light hard alloy seal ring and producing method thereof - Google Patents
Light hard alloy seal ring and producing method thereof Download PDFInfo
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- CN100458241C CN100458241C CNB2006101552705A CN200610155270A CN100458241C CN 100458241 C CN100458241 C CN 100458241C CN B2006101552705 A CNB2006101552705 A CN B2006101552705A CN 200610155270 A CN200610155270 A CN 200610155270A CN 100458241 C CN100458241 C CN 100458241C
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Abstract
The present invention relates to a lightweight hard-alloy sealing ring, its sealing material is formed from titanium carbide, nickel, tungsten carbide and titanium. Its composition includes (by wt%) 80-90% of titanium carbide powder, 5-10% of nickel powder, 3-5% of tungsten carbide powder and 2-5% of titanium powder. Said sealing ring has high hardness, and has high property for resisting high-temperature, resisting wear and resisting corrosion. Besides, said invention also provides its preparation method and concrete steps.
Description
Technical field
The present invention relates to a kind of seal ring of light hard alloy made and make the method for seal ring with light hard alloy.
Background technique
Common hard alloy seal ring is the cemented carbide based on Tungsten carbite, have higher hardness and wear-resisting property, be used to the sealing and the axle sleeve of various pump classes or still class, continuous expansion along with using scope, the deficiency of himself performance also appears suddenly out gradually, its high temperature resistance, decay resistance are relatively poor, have limited its use under some working condition.In addition, exhausted day by day as the main raw material(s) tungsten ore resource of hard alloy seal ring, analyze estimation according to the relevant expert, the existing tungsten ore resource of China only can be kept 11 years.Just because of this, the domestic in recent years tungsten powder prices of raw and semifnished materials skyrocket, and to accepting, can't keep with tungsten powder and make the situation that raw material are produced product.Thereby develop new substitute material, produce the light hard alloy seal ring product and arrived instant the time and opportunity to develop.
Summary of the invention
One of purpose of the present invention is selected for use China relatively to enrich mining deposits at present and is made raw material, substitutes to use the purpose of tungsten powder as main raw material(s) in the past, reaches few usefulness to can no purpose, to save cost.Another object of the present invention is the manufacture method of research hard alloy seal ring, reaches the raising high temperature resistance, decay resistance, increases the service life.
Following composition that the present invention adopts and manufacturing process realize above-mentioned purpose.
Light hard alloy seal ring, sealing material is made up of titanium carbide, nickel, Tungsten carbite and titanium, and it forms the content carbonized titanium powder is 80～90% weight, and nickel powder is 5～10% weight, and tungsten carbide powder is 3～5% weight, titanium valve is 2～5% weight.
The manufacture method of light hard alloy seal ring is characterized in that may further comprise the steps:
A, titanium carbide, nickel powder, tungsten carbide powder and titanium valve are mixed by weight proportion;
B, the above-mentioned mixture that mixed is put into the pebble mill wet-milling, ratio of grinding media to material is 3: 8, and solid-to-liquid ratio is 1: 1, normal temperature ball milling 48 hours;
After c, the wet feed that will grind are used the vacuum drier recovered alcohol, again with the oven dry of vapour seasoning case;
D, will be the dry powder of crossing, the Jia Baila bonding is granular, and 60～100 orders sieve;
E, above-mentioned bulk goods is put into punching block, pressurization 60～100MPa/cm
2Compression moulding;
F, the stampings of above-mentioned compression and moulding are put into the vacuum furnace sintering, temperature is controlled at 1400～1500 ℃ in the stove, is incubated 2～4 hours;
G, general be the product surface abrasive machining of sintering, after the assay was approved warehouse-in.
Described carbonized titanium powder, commercially available, greyish black ceramic powder, granularity is less than 4 μ m, and chemical formula is that TiC is to be the cubic lattice of principal crystalline phase with the titanium carbide, 3160 ℃ of fusing points, Young's modulus is 322Gpa, is the main material of light hard alloy, wear resistance, good thermal shock, stable chemical performance.
Nickel powder, commercially available, be the steel gray irregular powder, contain Ni more than 99.5%, particle size 15 μ m.
Tungsten carbide powder, commercially available, be the random powder of grey black, chemical formula WC content 99.7% particle size 200 orders sieve.
Titanium valve, commercially available, be the unformed powder of charcoal, chemical formula Ti content sieves greater than 99.2% particle size, 200 orders, and 1668 ℃ of fusing points belong to nonmagnetic metal.
In the compositing formula of the present invention, titanium carbide is 80～90% of a total content, the content of Tungsten carbite is 3～5% of total content, and owing to titanium carbide is occupied an leading position in alloy, and Tungsten carbite is in high temperature sintering, can be melted in the titanium carbide, melting degree is very big, forms the TiC-WC solid solution, and nickel powder and titanium valve mix characteristics such as wherein improving corrosion-resistant, high temperature resistant, anti-extension, formation is the ceramic cubic lattice of host lattice phase with the titanium carbide, produces good high temperature resistance, wear-resisting, decay resistance.
Adopt the beneficial effect of the seal ring of above-mentioned component and technological method trial-production to be, produce hard alloy seal ring with the Tungsten carbite raw material of original employing high-load and compare, volume density is from 14.5g/cm
3Reduce to 6.855g/cm
3G, hardness is brought up to HRA90.5 from HRA88, and resistance to flexure is brought up to 1750MPa from 1470MPa, reaches to save cost 40%, has improved wear resistance and anti acid alkali performance energy, increases the service life more than 30%.
Embodiment
Embodiment 1
The composition of light hard alloy seal ring consists of: carbonized titanium powder 85% weight, nickel powder 8% weight, tungsten carbide powder 4% weight, titanium valve 3% weight.
Process step is sketched: above-mentioned various compositions are weighed by weight proportion to mix; Put into the pebble mill wet-milling, the ratio of ball material is 3: 8, and the ratio of solid-liquid is 1: 1, carries out the normal temperature ball milling 48 hours; Behind the wet feed usefulness vacuum drier recovered alcohol that ball milling is good, again with the oven dry of Steam dry case; The dry powder Jia Baila that crosses is bonded to granular, 60～100 orders sieve; Above-mentioned bulk goods is put into the punching block 60～100MPa/cm that exerts pressure
2Compression moulding; Above-mentioned compression and moulding goods are put into the vacuum furnace sintering, and temperature control is 1400～1500 ℃ in the stove, is incubated 2～4 hours; With the product surface abrasive machining of sinter molding, warehouse-in after the assay was approved.
Product performance tests: it is as follows that above-mentioned preproduction is served extra large silicate research institute test testing result with the sample mode sampling: volume density 6.87 gram per centimeters
3, hardness HRA90.3, resistance to flexure 1750MPa.
Embodiment 2
The composition of light hard alloy seal ring consists of: carbonized titanium powder 90% weight, nickel powder 5% weight, tungsten carbide powder 3% weight, titanium valve 2% weight.
Process step is sketched: above-mentioned various compositions are weighed by weight proportion to mix; Put into the pebble mill wet-milling, the ratio of ball material is 3: 8, and the ratio of solid-liquid is 1: 1, carries out the normal temperature ball milling 48 hours; Behind the wet feed usefulness vacuum drier recovered alcohol that ball milling is good, again with the oven dry of Steam dry case; The dry powder Jia Baila that crosses is bonded to granular, 60～100 orders sieve; Above-mentioned bulk goods is put into the punching block 60～100MPa/cm that exerts pressure
2Compression moulding; Above-mentioned compression and moulding goods are put into the vacuum furnace sintering, and temperature control is 1400～1500 ℃ in the stove, is incubated 2～4 hours; With the product surface abrasive machining of sinter molding, warehouse-in after the assay was approved.
Product performance tests: it is as follows that above-mentioned preproduction is served extra large silicate research institute test testing result with the sample mode sampling: volume density 6.85 gram per centimeters
3, hardness HRA90.1, resistance to flexure 1680MPa.
Embodiment 3
The composition of light hard alloy seal ring consists of: carbonized titanium powder 80% weight, nickel powder 10% weight, tungsten carbide powder 5% weight, titanium valve 5% weight.
Process step is sketched: above-mentioned various compositions are weighed by weight proportion to mix; The ratio of putting into pebble mill wet-milling ball material is 3: 8, and the ratio of solid-liquid is 1: 1, carries out the normal temperature ball milling 48 hours; Behind the wet feed usefulness vacuum drier recovered alcohol that ball milling is good, again with the oven dry of Steam dry case; The dry powder Jia Baila that crosses is bonded to granular, 60～100 orders sieve; Above-mentioned bulk goods is put into the punching block 60～100MPa/cm that exerts pressure
2Compression moulding; Above-mentioned compression and moulding goods are put into the vacuum furnace sintering, and temperature control is 1400～1500 ℃ in the stove, is incubated 2～4 hours; With the product surface abrasive machining of sinter molding, warehouse-in after the assay was approved.
Product performance tests: it is as follows that above-mentioned preproduction is served extra large silicate research institute test testing result with the sample mode sampling: volume density 6.88 gram per centimeters
3, hardness HRA90.5, resistance to flexure 1700MPa.
Claims (6)
1, light hard alloy seal ring, sealing material is made up of titanium carbide, nickel, Tungsten carbite and titanium, and it is characterized in that forming the content carbonized titanium powder is 80～90% weight, and nickel powder is 5～10% weight, and tungsten carbide powder is 3～5% weight, titanium valve is 2～5% weight.
2, light hard alloy seal ring according to claim 1 is characterized in that composition content carbonized titanium powder 85% weight of seal ring, nickel powder 8% weight, tungsten carbide powder 4% weight, titanium valve 3% weight.
3, light hard alloy seal ring according to claim 1 is characterized in that seal ring composition content carbonized titanium powder 90% weight, nickel powder 5% weight, tungsten carbide powder 3% weight, titanium valve 2% weight.
4, light hard alloy seal ring according to claim 1 is characterized in that seal ring composition content carbonized titanium powder 80% weight, nickel powder 10% weight, tungsten carbide powder 5% weight, titanium valve 5% weight.
5, light hard alloy seal ring according to claim 1, the volume density that it is characterized in that seal ring is 6.85～6.88g/cm
3, hardness is 90.1～90.5HRA, flexural strength is 1680～1750MPa.
6, the manufacture method of light hard alloy seal ring is characterized in that may further comprise the steps:
A, titanium carbide, nickel powder, tungsten carbide powder and titanium valve are mixed by weight proportion;
B, the above-mentioned mixture that mixed is put into the pebble mill wet-milling, ratio of grinding media to material is 3: 8, and solid-to-liquid ratio is 1: 1, normal temperature ball milling 48 hours;
After c, the wet feed that will grind are used the vacuum drier recovered alcohol, again with the oven dry of vapour seasoning case;
D, will be the dry powder of crossing, the Jia Baila bonding is granular, and 60～100 orders sieve;
E, above-mentioned bulk goods is put into punching block, pressurization 60～100MPa/cm
2Compression moulding;
F, the stampings of above-mentioned compression and moulding are put into the vacuum furnace sintering, temperature is controlled at 1400～1500 ℃ in the stove, is incubated 2～4 hours;
G, general be the product surface abrasive machining of sintering, after the assay was approved warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101552705A CN100458241C (en) | 2006-12-18 | 2006-12-18 | Light hard alloy seal ring and producing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101552705A CN100458241C (en) | 2006-12-18 | 2006-12-18 | Light hard alloy seal ring and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021268A CN101021268A (en) | 2007-08-22 |
| CN100458241C true CN100458241C (en) | 2009-02-04 |
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| CNB2006101552705A Expired - Fee Related CN100458241C (en) | 2006-12-18 | 2006-12-18 | Light hard alloy seal ring and producing method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434665B (en) * | 2011-09-15 | 2015-01-28 | 上海高更高实业有限公司 | Light gradient hard-alloy sealing ring and manufacture method thereof |
| CN103244676A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Split-type sealing ring |
| CN103244680A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Alloy sealing ring |
| CN103244673A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Oblique inner screw-thread sealing ring |
| CN103244675A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Insertion-type metal seal structure |
| CN103600077A (en) * | 2013-12-04 | 2014-02-26 | 昆山达索泰精密电子有限公司 | Buckle machining method |
| CN105563042A (en) * | 2016-01-29 | 2016-05-11 | 柳州市安龙机械设备有限公司 | Machining method for hard-alloy sealing ring |
| CN107236890A (en) * | 2017-05-27 | 2017-10-10 | 陈国生 | A kind of concrete pump truck cheater plate and cut ring new material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834003A (en) * | 1972-11-02 | 1974-09-10 | Airco Inc | Method of particle ring-rolling for making metal rings |
| US5145506A (en) * | 1984-07-05 | 1992-09-08 | The United States Of America As Represented By The Secretary Of The Navy | Method of bonding metal carbides in non-magnetic alloy matrix |
| JPH0649581A (en) * | 1992-08-05 | 1994-02-22 | Nippon Steel Corp | Metal-ceramics composite excellent in corrosion resistance and wear resistance and its production |
| CN2391056Y (en) * | 1998-04-17 | 2000-08-09 | 王建国 | Hard alloy sealing ring |
| US6946096B2 (en) * | 2002-05-03 | 2005-09-20 | Honeywell International, Inc. | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors |
-
2006
- 2006-12-18 CN CNB2006101552705A patent/CN100458241C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834003A (en) * | 1972-11-02 | 1974-09-10 | Airco Inc | Method of particle ring-rolling for making metal rings |
| US5145506A (en) * | 1984-07-05 | 1992-09-08 | The United States Of America As Represented By The Secretary Of The Navy | Method of bonding metal carbides in non-magnetic alloy matrix |
| JPH0649581A (en) * | 1992-08-05 | 1994-02-22 | Nippon Steel Corp | Metal-ceramics composite excellent in corrosion resistance and wear resistance and its production |
| CN2391056Y (en) * | 1998-04-17 | 2000-08-09 | 王建国 | Hard alloy sealing ring |
| US6946096B2 (en) * | 2002-05-03 | 2005-09-20 | Honeywell International, Inc. | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors |
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|---|---|
| CN101021268A (en) | 2007-08-22 |
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