CN102400033A - Alloy cast iron material used for producing explosion-proof motor casting - Google Patents
Alloy cast iron material used for producing explosion-proof motor casting Download PDFInfo
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- CN102400033A CN102400033A CN2011104037641A CN201110403764A CN102400033A CN 102400033 A CN102400033 A CN 102400033A CN 2011104037641 A CN2011104037641 A CN 2011104037641A CN 201110403764 A CN201110403764 A CN 201110403764A CN 102400033 A CN102400033 A CN 102400033A
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- Prior art keywords
- explosion
- proof motor
- cast iron
- alloy cast
- iron material
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- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000005266 casting Methods 0.000 title claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 22
- 239000000956 alloy Substances 0.000 title claims abstract description 22
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 18
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 18
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 18
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 238000011081 inoculation Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000002667 nucleating agent Substances 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 10
- 239000011572 manganese Substances 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 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
- 239000002008 calcined petroleum coke Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- -1 carburelant Chemical compound 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to an alloy cast iron material used for producing an explosion-proof motor casting and belongs to the field of new materials for explosion-proof motor castings The alloy cast iron material is characterized by being prepared through the following steps: performing electro smelting on pig iron, scrap steel, ferrosilicon, ferromanganese, a recarburizing agent, copper and an inoculator; then performing stokehole metamorphism inoculation; and finally casting and cooling. The alloy cast iron material not only can meet favorable structural performance, cast form performance, machining quality and favorable low-temperature strength and meet the test of structure stress and gas explosion pressure under an extreme environment, but also has a lower linear expansion coefficient and meets the design interval of the explosion-proof motor of the explosion-proof motor under an extremely-cold and large-temperature-difference environment.
Description
Technical field
The present invention relates to a kind of alloy cast iron material that Explosion-proof Motor Casting is produced that is used for, belong to the field of new of Explosion-proof Motor Casting.
Background technology
Fire proof motor has been widely used in various danger industries with its higher safety assurance performance at present; Particularly inflammable and explosive place is like department's widespread uses such as colliery, oil and gas, petrochemical complex, chemical industry and weaving, metallurgy, town gas, traffic, grain and oil processing, papermaking, medicine.Fire proof motor is generally used for driving pump, blower fan, compressor and other power machines as main power-equipment.There had been bigger progress in China on the manufacture level of fire proof motor with on the whole explosion-proof performance in recent years, but exceedingly odious as high and cold (40 ℃) and day and night temperature greatly wait under the environment at some environment, and the fire proof motor of employing still needs import.What fire proof motor played a decisive role on safety performance stability mainly is aspect two, the one, and whether the design of explosion-proof theory structure is rationally advanced, the stability of two materials that are to use.The gap that mainly is the explosion suppresion surface of design on the stability of material does not change because of the linear expansion of material.At present China is main on the material of Explosion-proof Motor Casting uses cast steel, steel plate welding, HT200 graphitic cast iron and HT250 graphitic cast iron, but these materials are on low temperature intensity and coefficient of linear expansion and be not suitable for high and cold and the great severe environment of day and night temperature.Research duraluminum and the aluminum magnesium alloy structural material as Explosion-proof Motor Casting is also arranged recent years, but can only be applied on the miniature and small-sized fire proof motor of a part, medium-and-large-sized fire proof motor can not use.
Summary of the invention
Deficiency according to prior art; The technical problem that the present invention will solve is: a kind of alloy cast iron material that Explosion-proof Motor Casting is produced that is used for is provided; Can satisfy good structure properties, casting forming function, machinability, good low temperature intensity; Satisfy structure stress and the test of gas pressure of explosion under the extreme environment, lower coefficient of linear expansion is arranged again, satisfy the design gaps of guaranteeing the fire proof motor explosion suppresion surface under high and cold and the very big environment of the temperature difference.
The technical solution adopted for the present invention to solve the technical problems is: a kind of alloy cast iron material that Explosion-proof Motor Casting is produced that is used for is provided; It is characterized in that by the pig iron, steel scrap, ferrosilicon, ferromanganese, carburelant, copper, nucleating agent through electrosmelting; Again through the rotten inoculation in stokehold, after the casting cooling obtains this kind material.
The described pig iron uses the 18# pig iron of low titanium (titaniferous massfraction≤0.05%), low-phosphorous (phosphorated massfraction≤0.06%), low manganese (manganiferous massfraction≤0.3%).
Described steel scrap adopts rustless one-level steel scrap (thickness >=6mm).
Described ferrosilicon adopts the 75# ferrosilicon.
Described ferromanganese adopts 65# ferromanganese.
Described carburelant adopts the calcined petroleum coke carburelant of carbon containing quality >=95%.
Described nucleating agent adopts silicon titanate innoculant.
Described raw material ratio is the pig iron 10～20%, steel scrap 70～90%, ferrosilicon 1～2%, ferromanganese 1～2%, carburelant 2～5%, copper 02～0.3%, nucleating agent 0.5～0.8%.
The chemical ingredients of this material is: C%3.1～3.25, Si%1.8～2.1, Mn%0.7～0.9, P%＜0.07, S%＜0.05, Ti%≤0.04, Cr%＜0.1, Cu%0.2～0.3.
The tensile strength of this material>=275～325MPa, hardness HB170～220,233K ° of smallest limit intensity 300～350MPa, 233K ° of following impelling strength 8-10J/cm
2, the 293K ° of lower linear coefficient of expansion≤8*10
-6/ K °.
The invention has the beneficial effects as follows: this material can satisfy good structure properties, casting forming function, machinability, good low temperature intensity; Satisfy structure stress and the test of gas pressure of explosion under the extreme environment; Lower coefficient of linear expansion is arranged again, satisfy the design gaps of guaranteeing the fire proof motor explosion suppresion surface under high and cold and the very big environment of the temperature difference.
Embodiment
Below in conjunction with embodiment the present invention is done and to further describe.
Embodiment 1
Product is a fire proof motor part electric machine casing, single-piece weight 35.5kg, and model is 130, average wall thickness 10mm, phenolic sand molding technology.The raw material ratio of this kind of melting cast alloy iron is: the pig iron 10%, steel scrap 84.4%, ferrosilicon 1.3%; Ferromanganese 1.2%, carburelant 2.3%, copper 0.2%; Through the medium-frequency induction furnace fusing, after temperature reached 1520 ℃, detection was finely tuned composition through spectrograph; Form through the rotten inoculation in stokehold, nucleating agent 0.6%, wherein the pig iron uses low titanium, low-phosphorous, the low manganese 18# pig iron; Steel scrap adopts rustless one-level steel scrap (thickness >=6mm); Ferrosilicon adopts the 75# ferrosilicon; Ferromanganese adopts 65# ferromanganese; Carburelant employing carbon containing quality is 96% calcined petroleum coke carburelant; Nucleating agent adopts silicon titanate innoculant.
Be cast in the sand mold die cavity of motor casting and obtain the fire proof motor casing.Through check, utilize the chemical ingredients of the 130 type electric machine casings that this kind alloy cast iron material obtains to be: C%3.14, Si%1.83, Mn%0.79, P%0.053, S%0.032, Ti%0.025, Cr%0.06, Cu%0.2; Tensile strength 312MPa, hardness HB182,233K ° of smallest limit intensity 340MPa, 233K ° of following impelling strength 8.5J/cm
2, 293K ° of lower linear coefficient of expansion 6.5*10
-6/ K °.After the process bulge test＞and 25bar, it is stable to be applied to the psychro-environment safety performance.
Embodiment 2
Product is a fire proof motor part electric machine casing, single-piece weight 135kg, and model is 255, average wall thickness 12mm, phenolic sand molding technology.The raw material ratio of this kind of melting cast alloy iron is: the pig iron 15%, steel scrap 75.5%, ferrosilicon 2%; Ferromanganese 1.8%, carburelant 4.9%, copper 0.3%; Through the medium-frequency induction furnace fusing, after temperature reached 1520 ℃, detection was finely tuned composition through spectrograph; Form through the rotten inoculation in stokehold, nucleating agent 0.5%, wherein the pig iron uses low titanium, low-phosphorous, the low manganese 18# pig iron; Steel scrap adopts rustless pure one-level steel scrap (thickness >=6mm); Ferrosilicon adopts the 75# ferrosilicon; Ferromanganese adopts 65# ferromanganese; Carburelant employing carbon containing quality is 97% calcined petroleum coke carburelant; Nucleating agent adopts silicon titanate innoculant.
Be cast in the sand mold die cavity of motor casting and obtain the fire proof motor casing.Through check, utilize the chemical ingredients of the 255 type electric machine casings that this kind alloy cast iron material obtains to be: C%3.20, Si%1.92, Mn%0.81, P%0.049, S%0.028, Ti%0.029, Cr%0.03, Cu%0.25; Tensile strength 286MPa, hardness HB178,233K ° of smallest limit intensity 335MPa, 233K ° of following impelling strength 8.1J/cm
2, 293K ° of lower linear coefficient of expansion 6.7*10
-6/ K °.After the process bulge test＞and 25bar, it is stable to be applied to the psychro-environment safety performance.
Embodiment 3
Product is a fire proof motor part electric motor end cap, single-piece weight 63kg, and model is 355, average wall thickness 15mm, phenolic sand molding technology.The raw material ratio of this kind of melting cast alloy iron is: the pig iron 20%, steel scrap 74.7%, ferrosilicon 1.2%; Ferromanganese 1.4%, carburelant 2.0%, copper 0.3%; Through the medium-frequency induction furnace fusing, after temperature reached 1520 ℃, detection was finely tuned composition through spectrograph; Form through the rotten inoculation in stokehold, nucleating agent 0.8%, wherein the pig iron uses low titanium, low-phosphorous, the low manganese 18# pig iron; Steel scrap adopts rustless pure one-level steel scrap (thickness >=6mm); Ferrosilicon adopts the 75# ferrosilicon; Ferromanganese adopts 65# ferromanganese; Carburelant employing carbon containing quality is 95% calcined petroleum coke carburelant; Nucleating agent adopts silicon titanate innoculant.
Be cast in the sand mold die cavity of motor casting and obtain the fire proof motor end cap.Through check, utilize the chemical ingredients of the 355 type electric motor end caps that this kind alloy cast iron material obtains to be: C%321, Si%2.02, Mn%0.82, P%0.055, S%0.035, Ti%0.034, Cr%0.05, Cu%0.24; Tensile strength 290MPa, hardness HB192,233K ° of smallest limit intensity 342MPa, 233K ° of following impelling strength 9.0J/cm
2, 293K ° of lower linear coefficient of expansion 6.4*10
-6/ K °.After the process bulge test＞and 25bar, it is stable to be applied to the psychro-environment safety performance.
Claims (8)
1. one kind is used for the alloy cast iron material that Explosion-proof Motor Casting is produced; It is characterized in that by the pig iron, steel scrap, ferrosilicon, ferromanganese, carburelant, copper, nucleating agent through electrosmelting; Again through the rotten inoculation in stokehold, after the casting cooling obtains this kind material.
2. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that the described pig iron uses the 18# pig iron of low titanium, low-phosphorous, low manganese.
3. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described steel scrap adopts rustless one-level steel scrap.
4. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described ferrosilicon adopts the 75# ferrosilicon.
5. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described ferromanganese adopts 65# ferromanganese.
6. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described carburelant adopts the calcined petroleum coke carburelant of carbon containing quality >=95%.
7. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described nucleating agent adopts silicon titanate innoculant.
8. the alloy cast iron material that is used for Explosion-proof Motor Casting production according to claim 1 is characterized in that described raw material ratio is the pig iron 5～20%, steel scrap 70～90%; Ferrosilicon 1～2%, ferromanganese 1～2%, carburelant 2～5%; Copper 0.2～0.3%, nucleating agent 0.5～0.8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104037641A CN102400033B (en) | 2011-12-08 | 2011-12-08 | Alloy cast iron material used for producing explosion-proof motor casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104037641A CN102400033B (en) | 2011-12-08 | 2011-12-08 | Alloy cast iron material used for producing explosion-proof motor casting |
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| CN102400033A true CN102400033A (en) | 2012-04-04 |
| CN102400033B CN102400033B (en) | 2013-12-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014482A (en) * | 2012-12-28 | 2013-04-03 | 山东省源通机械股份有限公司 | Metal material produced from heat-resistant and corrosion-resistant austenite nodular cast iron and manufacturing method thereof |
| CN103624220A (en) * | 2013-12-05 | 2014-03-12 | 山东省源通机械股份有限公司 | Production technology of explosion-proof and corrosion-proof motor casing |
| CN104451359A (en) * | 2014-11-26 | 2015-03-25 | 山东省源通机械股份有限公司 | Ultralow-temperature high-toughness special nodular cast iron metal material and preparation method thereof |
| CN104690223A (en) * | 2013-12-05 | 2015-06-10 | 山东省源通机械股份有限公司 | A production process of an explosion-proof anticorrosion motor end bracket |
| CN106015913A (en) * | 2016-05-30 | 2016-10-12 | 李岩 | Multi-in and multi-out constant-pressure wet type air storage tank |
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| CN101481771A (en) * | 2008-11-06 | 2009-07-15 | 徐宏亮 | Spheroidizing pearlite and production method thereof |
| CN101921948A (en) * | 2010-09-03 | 2010-12-22 | 江苏仪征威龙活塞环有限公司 | Novel piston ring and preparation method thereof |
| CN102191424A (en) * | 2010-03-19 | 2011-09-21 | 湖北三环铸造股份有限公司 | As-cast gray cast iron braking material with low alloy content and high thermal fatigue strength |
-
2011
- 2011-12-08 CN CN2011104037641A patent/CN102400033B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481771A (en) * | 2008-11-06 | 2009-07-15 | 徐宏亮 | Spheroidizing pearlite and production method thereof |
| CN102191424A (en) * | 2010-03-19 | 2011-09-21 | 湖北三环铸造股份有限公司 | As-cast gray cast iron braking material with low alloy content and high thermal fatigue strength |
| CN101921948A (en) * | 2010-09-03 | 2010-12-22 | 江苏仪征威龙活塞环有限公司 | Novel piston ring and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014482A (en) * | 2012-12-28 | 2013-04-03 | 山东省源通机械股份有限公司 | Metal material produced from heat-resistant and corrosion-resistant austenite nodular cast iron and manufacturing method thereof |
| CN103624220A (en) * | 2013-12-05 | 2014-03-12 | 山东省源通机械股份有限公司 | Production technology of explosion-proof and corrosion-proof motor casing |
| CN104690223A (en) * | 2013-12-05 | 2015-06-10 | 山东省源通机械股份有限公司 | A production process of an explosion-proof anticorrosion motor end bracket |
| CN104451359A (en) * | 2014-11-26 | 2015-03-25 | 山东省源通机械股份有限公司 | Ultralow-temperature high-toughness special nodular cast iron metal material and preparation method thereof |
| CN106015913A (en) * | 2016-05-30 | 2016-10-12 | 李岩 | Multi-in and multi-out constant-pressure wet type air storage tank |
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| Publication number | Publication date |
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| CN102400033B (en) | 2013-12-11 |
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Denomination of invention: Alloy cast iron material for production of explosion-proof motor castings Effective date of registration: 20211115 Granted publication date: 20131211 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yiyuan county subbranch Pledgor: SHANDONG YUANTONG MACHINERY Co.,Ltd. Registration number: Y2021370000135 |
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Date of cancellation: 20230522 Granted publication date: 20131211 Pledgee: Agricultural Bank of China Limited by Share Ltd. Yiyuan county subbranch Pledgor: SHANDONG YUANTONG MACHINERY Co.,Ltd. Registration number: Y2021370000135 |
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Denomination of invention: Alloy cast iron material for the production of explosion-proof motor castings Effective date of registration: 20231025 Granted publication date: 20131211 Pledgee: China postal savings bank, Yiyuan County branch, Limited by Share Ltd. Pledgor: SHANDONG YUANTONG MACHINERY Co.,Ltd. Registration number: Y2023980062646 |
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