CN104226914B - A kind of casting technique of flange - Google Patents
A kind of casting technique of flange Download PDFInfo
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- CN104226914B CN104226914B CN201410430798.3A CN201410430798A CN104226914B CN 104226914 B CN104226914 B CN 104226914B CN 201410430798 A CN201410430798 A CN 201410430798A CN 104226914 B CN104226914 B CN 104226914B
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- 238000005266 casting Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000004576 sand Substances 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000003110 molding sand Substances 0.000 claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 238000007670 refining Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 244000035744 Hura crepitans Species 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 51
- 235000019353 potassium silicate Nutrition 0.000 claims description 12
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- 239000000440 bentonite Substances 0.000 claims description 10
- 229910000278 bentonite Inorganic materials 0.000 claims description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 10
- ZTFZSHLWORMEHO-UHFFFAOYSA-A pentaaluminum;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ZTFZSHLWORMEHO-UHFFFAOYSA-A 0.000 claims description 10
- 239000005011 phenolic resin Substances 0.000 claims description 10
- 229920001568 phenolic resin Polymers 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000009716 squeeze casting Methods 0.000 description 1
- 206010044325 trachoma Diseases 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses the casting technique of a kind of flange.Technique includes following step: (1) melting: be placed in electric furnace by steel melting, treats that temperature rises to as 1600-1700 DEG C, adds refining agent, refine 15-20min, obtains molten steel；(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtain sand mold, by sand mold when temperature is 600-700 DEG C, dry 10-15min, be cooled to subsequently 350-380 DEG C standby；(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1450-1550 DEG C, and the duration of pouring is 25-30s, after casting complete, is incubated 20-25min；(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing.
Description
Technical field
The present invention relates to the casting technique of a kind of flange, belong to foundary industry technical field.
Background technology
Flange is again ring flange or bead, it it is interconnective part between pipe and pipe, can be used for the connection between pipe end, the equipment that can be also used in is imported and exported, connection between preparing for two, casting for above-mentioned ring flange, first it is the casting for this ring flange blank, the material of general ring flange blank is aluminium alloy, the casting mould currently mainly adopting integral concave mould carries out manufacturing ring flange blank, can guarantee that the surface quality of squeeze casting, utilize cope match-plate pattern lever and lower push rod discharging, active force uniform and stable；But there is tissue looseness, the defect such as pore, trachoma；And existing forging processing method manufactures flange, although the flange quality produced is better, interior tissue is uniform, is absent from the pore in foundry goods, the injurous defect such as it is mingled with, but the equipment of production is complicated, quality requirements of raw materials is high, utilization rate of raw materials is relatively low, and waste is serious, and production cost is higher.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the casting technique of a kind of flange.
The present invention is achieved through the following technical solutions:
A kind of casting technique of flange, including following step:
(1) melting: be placed in electric furnace by steel melting, treat that temperature rises to as 1600-1700 DEG C, add refining agent, refine 15-20min, obtain molten steel, in molten steel, sulfur content is less than 0.02%, phosphorus content is less than 0.02%, and phosphorus content is 0.05-0.08%, silicon content 0.2-0.25%, manganese content 0.35-0.45%, nickel content 0.15-0.25%；
(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtain sand mold, by sand mold when temperature is 600-700 DEG C, dry 10-15min, be cooled to subsequently 350-380 DEG C standby；
(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1450-1550 DEG C, and the duration of pouring is 25-30s, after casting complete, is incubated 20-25min；
(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing.
The casting technique of described a kind of flange, described molding sand is made up of the raw material of following parts by weight: silica sand 100 parts, waterglass 6-8 part, water 12-16 part, phenolic resin 3-6 part, silicone oil 1-4 part, bentonite 10-12 part and aluminium triphosphate 2-4 part.
The casting technique of described a kind of flange, the weight ratio of described waterglass and water is 1:2.
The casting technique of described a kind of flange, described molding sand through the following steps that obtain: after waterglass and water are sufficiently mixed, add silica sand, phenolic resin, silicone oil and bentonite stirring 80-100min according to parts by weight, be eventually adding aluminium triphosphate stirring 2-3min and can obtain molding sand.
The casting technique of described a kind of flange, the addition of described refining agent is the 0.5-1.2% of Metal Weight.
The casting technique of described a kind of flange, described sand mold outer layer is coated with high-temperature resistant coating.
The beneficial effect that the present invention reaches:
The casting technique of the present invention adopts steel as primary raw material, improve the hardness of flange itself, by the flange mould that sand mold obtains, direct pouring molding, operation is less, reduce cost of manufacture, be cast in 25-30s and ensure that the uniformity of cast, reduce pore, steel utilization ratio is high, the flange surface obtained is smooth, and cracking breakout is low, and hardness is high.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.Following example are only for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
Embodiment 1
In the present embodiment, the casting technique of a kind of flange, including following step:
(1) melting: be placed in electric furnace by steel melting, treating that temperature rises to is 1700 DEG C, adds refining agent, and the addition of refining agent is the 1.2% of Metal Weight, refine 20min, obtaining molten steel, in molten steel, sulfur content is less than 0.02%, and phosphorus content is less than 0.02%, phosphorus content is 0.05%, silicon content 0.25%, manganese content 0.45%, nickel content 0.25%；
(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtaining sand mold, sand mold outer layer is coated with high-temperature resistant coating, by sand mold when temperature is 700 DEG C, dry 15min, be cooled to subsequently 380 DEG C standby；
(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1550 DEG C, and the duration of pouring is 30s, after casting complete, is incubated 25min；
(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing.
Described molding sand is made up of the raw material of following parts by weight: silica sand 100 parts, waterglass 6 parts, 12 parts of water, 6 parts of phenolic resin, silicone oil 1 part, bentonite 12 parts and aluminium triphosphate 2 parts.Described molding sand through the following steps that obtain: after waterglass and water are sufficiently mixed, according to parts by weight add silica sand, phenolic resin, silicone oil and bentonite stirring 100min, be eventually adding aluminium triphosphate stirring 3min can obtain molding sand.
Embodiment 2
In the present embodiment, the casting technique of a kind of flange, including following step:
(1) melting: be placed in electric furnace by steel melting, treating that temperature rises to is 1600 DEG C, adds refining agent, and the addition of refining agent is the 0.5% of Metal Weight, refine 15min, obtaining molten steel, in molten steel, sulfur content is less than 0.02%, and phosphorus content is less than 0.02%, phosphorus content is 0.08%, silicon content 0.2%, manganese content 0.35%, nickel content 0.15%；
(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtaining sand mold, sand mold outer layer is coated with high-temperature resistant coating, by sand mold when temperature is 600 DEG C, dry 10min, be cooled to subsequently 350 DEG C standby；
(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1450 DEG C, and the duration of pouring is 25s, after casting complete, is incubated 20min；
(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing.
Described molding sand is made up of the raw material of following parts by weight: silica sand 100 parts, waterglass 8 parts, 16 parts of water, 3 parts of phenolic resin, silicone oil 4 parts, bentonite 10 parts and aluminium triphosphate 4 parts.The casting technique of described a kind of flange, described molding sand through the following steps that obtain: after waterglass and water are sufficiently mixed, add silica sand, phenolic resin, silicone oil and bentonite stirring 90min according to parts by weight, be eventually adding aluminium triphosphate stirring 2min and can obtain molding sand.
Embodiment 3
In the present embodiment, the casting technique of a kind of flange, including following step:
(1) melting: be placed in electric furnace by steel melting, treating that temperature rises to is 1650 DEG C, adds refining agent, and the addition of refining agent is the 0.8% of Metal Weight, refine 18min, obtaining molten steel, in molten steel, sulfur content is less than 0.02%, and phosphorus content is less than 0.02%, phosphorus content is 0.06%, silicon content 0.22%, manganese content 0.35%, nickel content 0.25%；
(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtaining sand mold, sand mold outer layer is coated with high-temperature resistant coating, by sand mold when temperature is 660 DEG C, dry 13min, be cooled to subsequently 360 DEG C standby；
(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1500 DEG C, and the duration of pouring is 30s, after casting complete, is incubated 20min；
(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing.
The casting technique of described a kind of flange, described molding sand is made up of the raw material of following parts by weight: silica sand 100 parts, waterglass 7 parts, 14 parts of water, 5 parts of phenolic resin, silicone oil 3 parts, bentonite 10 parts and aluminium triphosphate 3 parts.Described molding sand through the following steps that obtain: after waterglass and water are sufficiently mixed, according to parts by weight add silica sand, phenolic resin, silicone oil and bentonite stirring 100min, be eventually adding aluminium triphosphate stirring 3min can obtain molding sand.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (5)
1. a casting technique for flange, is characterized in that, including following step:
(1) melting: be placed in electric furnace by steel melting, treat that temperature rises to as 1600-1700 DEG C, add refining agent, refine 15-20min, obtain molten steel, in molten steel, sulfur content is less than 0.02%, phosphorus content is less than 0.02%, and phosphorus content is 0.05-0.08%, silicon content 0.2-0.25%, manganese content 0.35-0.45%, nickel content 0.15-0.25%；
(2) mould prepares: manufacturing flange mould, and described flange mould makes according to required size, is put into by flange mould in molding sand box, obtain sand mold, by sand mold when temperature is 600-700 DEG C, dry 10-15min, be cooled to subsequently 350-380 DEG C standby；
(3) cast: by the sand mold in the pouring molten steel in step (1) to step (2), pouring temperature is 1450-1550 DEG C, and the duration of pouring is 25-30s, after casting complete, is incubated 20-25min；
(4) cooling: be cooled to room temperature, takes out the flange of molding, surface is cleared up, obtains flange after polishing；
Described molding sand is made up of the raw material of following parts by weight: silica sand 100 parts, waterglass 6-8 part, water 12-16 part, phenolic resin 3-6 part, silicone oil 1-4 part, bentonite 10-12 part and aluminium triphosphate 2-4 part.
2. the casting technique of a kind of flange according to claim 1, is characterized in that, the weight ratio of described waterglass and water is 1:2.
3. the casting technique of a kind of flange according to claim 1 and 2, it is characterized in that, described molding sand through the following steps that obtain: after waterglass and water are sufficiently mixed, add silica sand, phenolic resin, silicone oil and bentonite stirring 80-100min according to parts by weight, be eventually adding aluminium triphosphate stirring 2-3min and can obtain molding sand.
4. the casting technique of a kind of flange according to claim 1, is characterized in that, the addition of described refining agent is the 0.5-1.2% of Metal Weight.
5. the casting technique of a kind of flange according to claim 1, is characterized in that, described sand mold outer layer is coated with high-temperature resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430798.3A CN104226914B (en) | 2014-08-29 | 2014-08-29 | A kind of casting technique of flange |
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| CN201410430798.3A CN104226914B (en) | 2014-08-29 | 2014-08-29 | A kind of casting technique of flange |
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| CN104226914A CN104226914A (en) | 2014-12-24 |
| CN104226914B true CN104226914B (en) | 2016-07-06 |
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| CN105081229A (en) * | 2015-08-28 | 2015-11-25 | 桂林昌鑫机械制造有限公司 | Casting process for crankshaft |
| CN105695848A (en) * | 2015-11-29 | 2016-06-22 | 郑臣钏 | Flange casting process |
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| CN106111913A (en) * | 2016-06-30 | 2016-11-16 | 娄土岭 | A kind of flange casting technique |
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| CN107083518A (en) * | 2017-06-20 | 2017-08-22 | 合肥博创机械制造有限公司 | A kind of casting technique of steel alloy valve |
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| CN109465389A (en) * | 2018-11-20 | 2019-03-15 | 吴江市格瑞福金属制品有限公司 | A kind of preparation process of baking tray |
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| CN110425257A (en) * | 2019-07-30 | 2019-11-08 | 江苏胜牌科技有限公司 | A kind of Novel gearbox output end |
| CN112317687B (en) * | 2020-10-27 | 2022-09-09 | 梅州市福德金属制品有限公司 | Processing technology of casting |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100450664C (en) * | 2007-01-09 | 2009-01-14 | 辽宁福鞍铸业集团有限公司 | Production of large and super-critical steel-casting by using alkali phenolic aldehyde resin art |
| RU2427444C1 (en) * | 2010-05-20 | 2011-08-27 | Открытое Акционерное Общество "Российские Железные Дороги" | Method of producing piston rings and cylinder sleeve billets |
| CN101961768A (en) * | 2010-11-18 | 2011-02-02 | 沪东重机有限公司 | Method for casting cast steel cylinder cover |
| CN103949611B (en) * | 2014-01-15 | 2017-01-04 | 洛阳轴研科技股份有限公司 | A kind of casting method of electro spindle open slot copper rotor |
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Effective date of registration: 20240218 Address after: Room 1402, Gate 1, Building 5, Beidou Garden, Jinzhonghe Street, Hebei District, Tianjin, 300143 Patentee after: Li Yunqing Country or region after: China Address before: No. 6 Shenta Longjiang Road, Fenhu Economic Development Zone, Wujiang City, Suzhou City, Jiangsu Province, 215213 Patentee before: WU JIANG YE ZHU YE YA JIAN ZHU ZAO Co.,Ltd. Country or region before: China |
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