CN101386066B - Method for casting the iron and steel casting on extrusion machine - Google Patents
Method for casting the iron and steel casting on extrusion machine Download PDFInfo
- Publication number
- CN101386066B CN101386066B CN2008101434233A CN200810143423A CN101386066B CN 101386066 B CN101386066 B CN 101386066B CN 2008101434233 A CN2008101434233 A CN 2008101434233A CN 200810143423 A CN200810143423 A CN 200810143423A CN 101386066 B CN101386066 B CN 101386066B
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- China
- Prior art keywords
- extruder
- casting
- forming
- iron
- cast
- Prior art date
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Links
- 238000005266 casting Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 11
- 239000010959 steel Substances 0.000 title claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 10
- 238000001125 extrusion Methods 0.000 title description 6
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 14
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 10
- 238000002425 crystallisation Methods 0.000 claims abstract description 10
- 230000008025 crystallization Effects 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229940037003 alum Drugs 0.000 claims abstract description 5
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 5
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 18
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 4
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 230000003746 surface roughness Effects 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000007596 consolidation process Methods 0.000 description 9
- 206010039509 Scab Diseases 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a method used for casting iron and steel casting on an extruder. Sand and heavy MgO are formed and solidified as an internal die by forming curing liquid; subsequently, the internal die is arranged in a metal die of the extruder so as to carry out the casting on the extruder; the forming curing liquid is mixed and compounded as solution with the specific gravity of 10-40 according to the weight percentage by the compositions as follows: 1 of potassium permanganate, 300-600 of crystallization magnesium chloride, 20-50 of crystallization alum and 600-800 of water; the material tissue is compact after squeeze forming of the product gained by the method, the mechanical performance is better, the precision is high, the surface is smooth without sand-sticking or scaring,processing is little or free, the surface roughness Ra reaches 1.6-3.2microns, the forming process is not controlled by the complexity and weight of the product, and the original auxiliary material has low cost, the automation and mechanical production can be realized and the method can be applied to various manufacture industries.
Description
Technical field
The present invention relates to the method that a kind of iron and steel casting is cast on extruder.
Background technology
The metal product duplication process that existing casting industry uses comprises water-glass sand model casting, ceramic mold casting, powder metallurgy sintered casting etc., but its product surface of water-glass sand model casting is coarse, precision is not high, scab, scab, coating layer thickness is difficult to grasp; Its process of ceramic mold casting is wayward, and fragility greatly, easily produces big crackle, cost height, is difficult to realize automatic and mechanical production; Powder metallurgy sintered Casting Equipment investment is big, the cost height; In existing technology, also do not utilize the casting consolidation liquid that sand and heavy-burned magnesia curing molding are made internal mold; Internal mold is placed in the metal pattern of extruder the method for on extruder, casting again.
Summary of the invention
The method that the object of the present invention is to provide a kind of iron and steel casting on extruder, to cast.To realize product precision height, any surface finish, not scab, do not scab, can process or exempt from processing less, and moulding is simple, cost is low, application is wide, forming process be not subjected to product complexity and weight control, can realize that automation, mechanization produces, can be applied to various manufacturings.
Technical scheme of the present invention is: with forming and hardening liquid sand is become internal mold with the heavy-burned magnesia forming and hardening; Internal mold is placed in the metal pattern of extruder again, on extruder, cast.
Described forming and hardening liquid is made into the solution that proportion is the 10-40 degree by following component and percentage by weight mixing: potassium permanganate: crystallization magnesium chloride: crystallization alum: water=1: 300-600: 20-50: 600-800.
Described internal mold is to stir into pastel after forming and hardening liquid is mixed by following weight ratio, again with the product that is molded as in not somatotype internal mold or the somatotype: forming and hardening liquid: heavy-burned magnesia: dry sand=1: 6-9: 10-20.
Described not somatotype internal mold is that a master mold grouting is removed bubble with once shaking.Usually be to use not somatotype internal mold for producing by batch.
Described somatotype internal mold is that bubble is removed in master mold grouting at twice and secondary vibrations, treats to carry out after the sclerosis for the first time second time master mold again and is in the milk and vibrations go to steep.Usually to use the somatotype internal mold for single products.
Describedly being made into the liquid that proportion is the 10-40 degree, is to be made into different proportion according to different temperature of spring, summer, autumn and winter with different humidity.
Advantage of the present invention: material structure densification after the product extrusion modling that casts out in this way, mechanical performance is better, the precision height, any surface finish, not scab does not scab, can process or exempt from processing less, it is that 1.6-3.2 micron, the forming process control, the raw and auxiliary material cost that are not subjected to product complexity and weight is low that surface roughness reaches Ra, can realize automation, mechanization production, can be applied to various manufacturings.
The specific embodiment
Embodiment 1:
Present embodiment is the extrusion casint (chromium steel or spheroidal graphite cast-iron) of engine link
(1) by following component and percentage by weight preparation casting consolidation liquid, potassium permanganate 100 grams, 55 kilograms of the crystallization magnesium chloride of 50% content, 2 kilograms in crystallization alum adds 70 kilograms in water and is made into the solution that proportion is the 10-40 degree;
(2) above casting consolidation liquid is allocated into heavy-burned magnesia, dry sand (quartzy casting model powder or quartzy yellow ground), its weight ratio is: consolidation liquid: heavy-burned magnesia: dry sand=1: 8: 15, and stir into pastel; The required viscosity of pastel is regulated with the ratio of increase and decrease consolidation liquid;
(3) connecting rod wax-pattern master mold grouting, bubble is removed in vibrations;
(4) harden, molten mould, go mould, the oven dry supervisor; And handle by the base program of existing various casting methods, becoming qualified resistant to elevated temperaturesly has the casting mold of die cavity to do internal mold;
(5) internal mold is put into the metal outer mold of extruder, again molten metal is poured into running channel and carry out the low speed extruding with extrusion head and fill type, in order to exhaust with set up the consecutive solidification field, promptly be pressurized to 1600kg-2000kgkg/cm in the moment that die cavity is full of
2, pressurize 20-30 second;
(6) foundry goods of casting being gone into stove with casting mold heat-treats;
(7) sand removal.
Processing can be processed or exempt to the product precision height of present embodiment less, and it is the 1.6-3.2 micron that surface roughness reaches Ra.
Embodiment 2:
Present embodiment is the extrusion casint (No. 45 steel) of the tapered gear of single-piece automobile
(1) by following component and percentage by weight preparation casting consolidation liquid: potassium permanganate 100 grams, 60 kilograms of the crystallization magnesium chloride of 40% content, 4 kilograms in crystallization alum adds 80 kilograms in water and is made into the liquid that proportion is the 10-40 degree;
(2) above casting consolidation liquid is allocated into heavy-burned magnesia, dry sand (quartzy casting model powder or quartzy yellow ground), its weight ratio is: consolidation liquid: heavy-burned magnesia: dry sand=1: 7: 12; And stir into pastel; The required viscosity of pastel is regulated with the ratio of increase and decrease consolidation liquid;
(3) bubble is removed in the vibrations of master mold grouting and secondary at twice, treats to carry out after the sclerosis for the first time second time master mold again and is in the milk and vibrations go to steep;
(4) harden, molten mould, go mould, the oven dry supervisor; And handle by the base program of existing various casting methods, becoming qualified resistant to elevated temperaturesly has the casting mold of die cavity to do internal mold;
(5) internal mold is put into the metal outer mold of extruder, again molten metal is poured into running channel and carry out the low speed extruding with extrusion head and fill type, in order to exhaust with set up the consecutive solidification field, promptly be pressurized to 1600kg-2000kg/cm in the moment that die cavity is full of
2, pressurize 20-30 second;
(6) foundry goods of casting being gone into stove with casting mold heat-treats;
(7) sand removal.
Processing can be processed or exempt to the product precision height of present embodiment less, and it is the 1.6-3.2 micron that surface roughness reaches Ra.
Claims (5)
1. the method that iron and steel casting is cast on extruder is characterized in that, with forming and hardening liquid sand is become internal mold with the heavy-burned magnesia forming and hardening; Internal mold is placed in the metal pattern of extruder again, on extruder, cast.
2. the method that iron and steel casting according to claim 1 is cast on extruder, it is characterized in that described forming and hardening liquid is made into the solution that proportion is 10-40 by following component and weight ratio mixing: potassium permanganate: crystallization magnesium chloride: crystallization alum: water=1: 300-600: 20-50: 600-800.
3. the method that iron and steel casting according to claim 1 is cast on extruder; it is characterized in that; described internal mold is to stir into pastel after forming and hardening liquid is mixed by following weight ratio, again with the product that is molded as in not somatotype internal mold or the somatotype: forming and hardening liquid: heavy-burned magnesia: dry sand=1: 6-9: 10-20.
4. the method that iron and steel casting according to claim 3 is cast on extruder is characterized in that, described not somatotype internal mold is that a master mold grouting is removed bubble with once shaking.
5. the method that iron and steel casting according to claim 3 is cast on extruder is characterized in that, described somatotype internal mold is that bubble is removed in master mold grouting at twice and secondary vibrations, treats to carry out after the sclerosis for the first time second time master mold again and is in the milk and vibrations go to steep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101434233A CN101386066B (en) | 2008-10-27 | 2008-10-27 | Method for casting the iron and steel casting on extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101434233A CN101386066B (en) | 2008-10-27 | 2008-10-27 | Method for casting the iron and steel casting on extrusion machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101386066A CN101386066A (en) | 2009-03-18 |
| CN101386066B true CN101386066B (en) | 2010-06-09 |
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ID=40475849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101434233A Expired - Fee Related CN101386066B (en) | 2008-10-27 | 2008-10-27 | Method for casting the iron and steel casting on extrusion machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101386066B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059485A (en) * | 1990-09-06 | 1992-03-18 | 希钦拿制造有限公司 | Employing is by the antigravity casting of particulate supported thin-walled investment shell |
| CN1433859A (en) * | 2003-02-11 | 2003-08-06 | 张有龙 | New technology for molten steel flow and steel mould pressing and extrusion |
| US20060243421A1 (en) * | 2005-04-29 | 2006-11-02 | United States Of America, Represented By Secretary Of The U.S. Army | Soluble casting core for metal matrix composite components and method of producing thereof |
| CN101229581A (en) * | 2008-01-25 | 2008-07-30 | 华中科技大学 | Casting method and mould for car air conditioning compressor slanting plate |
-
2008
- 2008-10-27 CN CN2008101434233A patent/CN101386066B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059485A (en) * | 1990-09-06 | 1992-03-18 | 希钦拿制造有限公司 | Employing is by the antigravity casting of particulate supported thin-walled investment shell |
| CN1433859A (en) * | 2003-02-11 | 2003-08-06 | 张有龙 | New technology for molten steel flow and steel mould pressing and extrusion |
| US20060243421A1 (en) * | 2005-04-29 | 2006-11-02 | United States Of America, Represented By Secretary Of The U.S. Army | Soluble casting core for metal matrix composite components and method of producing thereof |
| CN101229581A (en) * | 2008-01-25 | 2008-07-30 | 华中科技大学 | Casting method and mould for car air conditioning compressor slanting plate |
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| Publication number | Publication date |
|---|---|
| CN101386066A (en) | 2009-03-18 |
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Owner name: HU'NAN CHENZHOU MINING CO., LTD. Free format text: FORMER OWNER: QIN ZHONGLIN Effective date: 20110622 |
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Free format text: CORRECT: ADDRESS; FROM: 419607 NO. 69, HUJIA YARD, WOXI VILLAGE, YUANLING COUNTY, HU'NAN PROVINCE TO: 419607 GUANZHUANG TOWN, YUANLING COUNTY, HU'NAN PROVINCE |
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Effective date of registration: 20110622 Address after: 419607, Yuanling County, Hunan Province town Patentee after: Hu'nan Chenzhou Mining Co., Ltd. Address before: 419607 No. 69 Hu family courtyard, wo Xi village, Yuanling County, Hunan Patentee before: Qin Zhonglin |
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