CN104972078A - Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum - Google Patents
Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum Download PDFInfo
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- CN104972078A CN104972078A CN201410151803.7A CN201410151803A CN104972078A CN 104972078 A CN104972078 A CN 104972078A CN 201410151803 A CN201410151803 A CN 201410151803A CN 104972078 A CN104972078 A CN 104972078A
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- chute
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- runner
- aluminum
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Abstract
The invention discloses an efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum, which is suitable for aluminum water high-quality conveying of the aluminum alloy casting field. The problems to be solved are temperature drop, oxidization and corrosion on the runner due to aluminum water adhering in an aluminum water conveying process. According to the technical scheme adopted by the invention, the key point is that a reinforced fiber glass ceramic runner (1) is used to prevent the aluminum water from adhering on and corroding the runner, so that heat conduction loss of the runner is reduced; a nano microporous heat-insulating material (2) and ceramic fiber heat-insulating materials (3, 4) are used to reduce heat conduction loss of the runner to a minimum; by virtue of a ceramic heating unit (8) on a stainless steel supporting plate (7) in a runner cover (6) is used to heat the runner cover to the aluminum water temperature, so that aluminum water radiation heat loss is reduced to a minimum, and convective heat exchange loss is compensated; a temperature measuring device (12) is used to monitor the practical temperature of the aluminum water in a runner outlet; and an atmosphere control tube (13) is used to lead in an inert gas, so that the aluminum water is oxidized to a minimum. The efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum is especially suitable for conveying high-quality aluminum water of an aluminum alloy quantitative furnace.
Description
[technical field]
The invention belongs to a kind of " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " that be applicable to the conveying of aluminium alloy casting field aluminium alloy melt high-quality.The present invention is specially adapted to that aluminium alloy quantitative furnace is high pressure, low pressure and Gravity casting machines provide high-quality aluminum alloy melt.
[technical background]
At aluminium alloy casting field, be generally realized by the heat-resistance stainless steel chute of uncovered from quantitative maintenance stove to casting machine conveying aluminum water.In the process of aluminium water by chute, due to the conductive heat loss of chute, by convection heat losses and the radiation heat loss on chute surface, all decreases to some degree of aluminium coolant-temperature gage, when particularly chute length is longer, temperature can reduce more.In order to make the aluminium coolant-temperature gage entering mold reach technological requirement, the general temperature keeping the aluminium water in stove will exceed pouring technology requirement, this not only increases the energy consumption that aluminium aqueous fusionization keeps operation, increases again extra aluminium Water oxidize scaling loss.Therefore, whether for improve casting process aluminium water quality, ensure casting quality, or reducing aluminium aqueous fusionization keeps energy consumption and material consumption, all need one " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium ".
Because aluminium water flow grooves uncovered usually, this is except causing aluminium water thermal loss, and the aluminium flow of water contacted with air must be oxidized, and aluminium Water oxidize thing enters mold together with aluminium water, certainly will affect cast article quality.
Because use heat-resistance stainless steel chute, even if use anti-aluminium water to be stained with knot corrode coating, also have aluminium water and be stained with knot erosion chute surface, solidify the phenomenon of skinning, these skinning being stained with knot chute surface can be mixed in the aluminium water of subsequent delivery, become aluminium water field trash, have a strong impact on cast article quality.
Aluminium alloy casting field need high-efficiency insulated, be not stained with aluminium, anti-oxidation aluminium water flow grooves, ensure supply high-quality aluminum alloy melt, save energy resource consumption and aluminum alloy materials consumption simultaneously.
[summary of the invention]
The present invention is exactly the problems referred to above for existing in the conveying of aluminium alloy casting field aluminium water and technical need, provides one " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium ".
The present invention is achieved through the following technical solutions:
Use reinforcing fiber glass ceramics chute (1), prevent aluminium water to be stained with knot and corrode chute, reduce chute conductive heat loss.Can select as the case may be different reinforcing fiber glass material (
pyrotek, Inc.) chute made, such as calcium silicates base fortifying fibre glass material (RFMCS), or vitreous silica base fortifying fibre glass material (RFM FS) or silicon carbide-based fortifying fibre glass material (RFM SiC).
Use nanometer micropore heat-insulating shield (2), ceramic beaverboard (3), ceramic fiber cotton (4), stainless steel case (5), stainless steel cover (6), make the temperature on chute and the outer box hat surface of chute lid suitable with environment temperature, and then it is minimum that the conductive heat loss of chute and chute lid is down to.
By to use and control is arranged on heating unit (8) heating tank lid on the interior stainless steel supporting plate (7) of chute lid (6) to aluminium coolant-temperature gage, make aluminium water radiation heat loss be down to minimum, compensate heat convection loss simultaneously.
Use launder outlet temperature measuring equipment (12), thermoelectricity occasionally optics temperature measurer monitoring record enters the actual temperature of casting machine cast gate aluminium water.Guarantee the technological temperature index of casting process and melting and heat preservation operation optimum, guarantee chute integral heat insulation effect simultaneously.
Use control climate pipe (13) importing nitrogen or other inert gas to enter chute, prevent aluminium water and air from contacting, aluminium Water oxidize is down to minimum.
Use the upper lower flange of the fixing chute shell (5) of flange bolt (26) and groove lid (6), become one.This couple structure is convenient to maintenance and the replacing of chute and chute lid component.
Use chute front end fixed fitting (29) that chute is positioned casting machine gate location.
Use conveniently detachable its bottom supporting construction (40), chute is fixed on quantitative furnace (42) front end face.
Use soket head cap screw (25) construction package, the guiding gutter (36) at chute and the aluminium water mouth of a river (41) is fixed.
Technical characteristic of the present invention comprises:
Use reinforcing fiber glass ceramics chute (1), prevent aluminium water to be stained with knot and corrode chute, reduce chute conductive heat loss.
Use nanometer micropore heat-insulating shield (2), ceramic beaverboard (3), ceramic fiber cotton (4), stainless steel chute shell (5), stainless steel cover (6), ensure that temperature and the environment temperature on chute shell (5) and chute cover housing (6) surface are suitable, the conductive heat loss of chute and chute lid is down to minimum.
Use PLC automatically to control the heating unit (8) be arranged on the interior stainless steel supporting plate (7) of chute lid (6) and add heated launder lid to aluminium water equivalent temperature, guarantee makes aluminium water radiation heat loss be down to minimum, compensates the loss of aluminium water heat convection simultaneously.
Use launder outlet temperature measuring equipment (12), thermoelectricity occasionally optics temperature measurer obtains launder outlet aluminium water actual temperature data and chute integral heat insulation effect data.
Use control climate pipe (13) importing nitrogen or other inert gas to enter chute, aluminium Water oxidize is down to minimum.
Use the structure of flange bolt and the fixing lower flange of chute (5) of nut (26) and the upper flange of chute lid (6), be convenient to maintenance and the replacing of chute and groove lid component.
Use conveniently detachable its bottom supporting construction (40), be convenient to equipment dismounting and maintenance.
Technological merit of the present invention is:
For aluminium alloy high pressure casting, low pressure casting, gravitational casting field, systematically achieve aluminium alloy melt high-efficiency insulated, be not stained with aluminium, anti-oxidation high-quality conveying.
The actual temperature of Casting Equipment gate location aluminium alloy melt can be obtained, for casting process and melting and heat preservation operation provide optimum aluminium coolant-temperature gage process data in good time.
The monitoring of the actual temperature of launder outlet place aluminium alloy melt and feedback, the detection of chute lid heating-up temperature and PLC control, for the quality control of chute and energy consumption control to provide important foundation data.
The combined type design of chute, chute lid, the aluminium mouth of a river, chute lower metal supporting construction, for the operation such as installation, dismounting, repairing, replacing, cleaning of chute and groove lid component provides very big convenience.
[accompanying drawing explanation]
Fig. 1 is chute assembling schematic diagram
Fig. 2 is chute cross section C-C profile
Fig. 3 is chute cross section D-D profile
Fig. 4 is chute cross section E-E profile
Fig. 5 is chute cross section F-F profile
Fig. 6 is series wiring terminal and frame case I-I profile
Fig. 7 is power supply terminal and frame case J-J profile
Fig. 8 is its bottom metal support structure figure
Fig. 9 goes out aluminium gate structure figure
Figure 10 is chute-bottom metal fixed structure-go out aluminium mouth of a river installation diagram
[detailed description of the invention]
The present invention is embodied in aluminium alloy casting field and uses " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " to carry high-quality aluminum alloy melt to High pressure casting machine or air injection machine or Gravity casting machines.
The feature that the present invention specifically implements uses reinforcing fiber glass (RFM CS) ceramic chute (1), prevents aluminium alloy melt to be stained with knot and corrode chute.In addition, RFM CS material weight is light, intensity good, cracking resistance good, anti-molten aluminum chemistry erosiveness is excellent, surface dehumidifying needs that amounts of preheat is minimum, cleaning is easy, thermal conductivity factor low [0.43W/ (mK)@500 DEG C)], can to a certain degree reduce chute conductive heat loss.
The feature that the present invention specifically implements uses nanometer micropore heat-insulating shield or shaped piece (2) to wrap up ceramic chute (1) in reinforcing fiber glass ceramics chute (1) outside, form main heat insulation layer, make the surface temperature of the outer box hat of ceramic chute reach 30 DEG C or environment temperature, the conductive heat loss of chute is down to minimum.
Table 1. nanometer micropore heat-insulating shield (2) thermal conductivity factor variation with temperature
| Mean temperature DEG C | 200 | 400 | 600 | 800 |
| Thermal conductivity factor (w/mK) | 0.021 | 0.025 | 0.028 | 0.034 |
The feature that the present invention specifically implements is that lower curved position filling ceramic fiber cotton (4) forms isolated thermosphere continuously between reinforcing fiber glass ceramics chute (1) and nanometer micropore heat-insulating shield (2).
The feature that the present invention specifically implements wraps up ceramic fibre abnormity heat-insulating shield (3) again.This layer of ceramic fibre abnormity heat insulation layer is except playing heat-blocking action, and its effect mainly adjusts heat insulation layer shape and the outer box hat form fit of chute.
The feature that the present invention specifically implements uses PLC to control the crawler type ceramic heat unit (8) be arranged on chute lid (6) interior stainless steel supporting plate (7) to add heated launder lid to keeping stove supply aluminium aqueous phase synthermal, makes aluminium water radiation heat loss
be down to minimum, compensate aluminium water convection heat losses simultaneously.
The feature that the present invention specifically implements uses crawler type ceramic heat unit (8), crawler type ceramic heating flake (the 8a that this heating unit is connected in series by two groups, 8b) form, the terminals (18) of ceramic heat unit (8) and the connection of external power source are realized by four binding posts (19).Four binding posts (19) are arranged on binding post installing rack (14).Binding post (19) is by insulating ceramics support set (20,21), and high temperature insulation packing ring (22,23), stainless steel full thread binding post (24) is formed.Binding post installing rack (14) is welded on chute lid (6); binding post installing rack (14) covers on wherein by binding post guard box shell (15), and binding post guard box shell (15) is fixed on binding post installing rack (14) by interior hexagonal flat head screw (16).
The feature that the present invention specifically implements uses launder outlet temperature measuring equipment (12), the actual temperature of thermoelectricity occasionally optics temperature measurer monitoring record casting machine cast gate place aluminium alloy melt.This place's aluminium coolant-temperature gage is the important process data that aluminium alloy casting process and aluminium water melting and heat preservation operation need, and is again the significant data characterizing chute integral heat insulation effect simultaneously.
The feature that the present invention specifically implements in chute, imports nitrogen by control climate pipe (13), suppresses aluminium alloy melt to contact with air, the oxidation of aluminium alloy melt is down to minimum.
The feature that the present invention specifically implements uses flange bolt to be fixedly connected with chute box hat (5) lower flange and chute lid (6) upper flange with nut (26).This structure is convenient to the dismounting of chute and chute lid, the maintenance of various assembly and replacing.
The feature that the present invention specifically implements uses conveniently detachable its bottom supporting construction (40), for the movement of equipment and maintenance provide convenient.Its bottom supporting construction (40) is made up of two groups of steel plate combination components (30,31) and one group of angle steel cross sub-assembly (32).Angle steel cross sub-assembly (32) is welded on the positive front end face of aluminium alloy quantitative furnace, steel plate combination component (30,31) by bolt and nut (33a, 33c) with chute retainer ring (27a, 27b) be connected and fixed, be connected and fixed by bolt and nut (33b, 33d) and angle steel cross sub-assembly (32).
The feature that the present invention specifically implements is that the aluminium mouth of a river (41) be utilize flange (35) to be arranged on aluminium alloy quantitative furnace (42) anterior angled end-face, guiding gutter (36) embeds chute and enters aluminium water end (W.E.), utilizes hexagonal flat head screw (25) and socket gathering sill (37) in one group to connect fixing with chute group.Ceramic launder outlet end top fixed fitting (29) is utilized to locate launder outlet in casting machine cast gate (43) position.
The advantage that the present invention specifically implements is:
For aluminium alloy high pressure casting, low pressure casting, gravitational casting field, provide " high-efficiency insulated be not stained with aluminium anti-oxidation " chute of a kind of aluminium alloy melt high-quality conveying.
The actual temperature of Casting Equipment cast gate place aluminium alloy melt can be obtained, for casting process and melting and heat preservation operation provide aluminium coolant-temperature gage data accurately in good time.
The monitoring of the actual temperature of launder outlet place aluminium alloy melt and feedback, the monitoring of chute lid heating-up temperature and PLC control, and the function for chute controls and power consumption controls to provide significant data.
Chute, chute lid, the aluminium mouth of a river, the system-wide combined type design of chute lower metal supporting construction, for the operation such as installation, dismounting, repairing, replacing, cleaning of chute and chute lid component provides very big convenience.
Claims (6)
1. one kind is applicable to " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " of aluminium alloy casting field aluminium alloy melt high-quality conveying.It is characterized in that using reinforcing fiber glass ceramics chute (1), prevent aluminium water to be stained with knot and corrode chute, reduce chute conductive heat loss simultaneously; Use nanometer micropore heat-insulating material (2) and ceramic fibre heat-insulating material (3,4) that the conductive heat loss of chute is down to minimum; Use and the control ceramic heat unit (8) be arranged on chute lid (6) interior stainless steel supporting plate (7) to add heated launder lid synthermal to aluminium aqueous phase, make aluminium water radiation heat loss be down to minimum, compensate the loss of aluminium water heat convection simultaneously; Use launder outlet temperature measuring equipment (12) monitoring record launder outlet aluminium water actual temperature; Import inert gas by control climate pipe (13) and enter chute, aluminium Water oxidize is down to minimum.
2. " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " according to claim 1, use reinforcing fiber glass ceramics chute (1), nanometer micropore heat-insulating material (2) and ceramic fibre heat-insulating material (3,4), chute steel structure casing (5) and chute lid steel structure casing (6), make the conductive heat loss of chute and chute lid be down to minimum structure and method.
3. " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " according to claim 1, use and ceramic heat unit (8) heating tank lid that control is arranged on chute lid (6) interior stainless steel supporting plate (7) synthermal to aluminium aqueous phase, make aluminium water radiation heat loss be down to minimum, compensate structure and the method for the loss of aluminium water heat convection simultaneously.
4. " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " according to claim 1, use launder outlet temperature measuring equipment (12), the structure of monitoring and record launder outlet aluminium water actual temperature and method.
5. " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " according to claim 1, import inert gas by control climate pipe (13) and enter chute, make aluminium Water oxidize be down to minimum structure and method.
6. " high-efficiency insulated be not stained with the anti-oxidation aluminium water flow grooves of aluminium " according to claim 1, utilize assembly type its bottom supporting construction (40), chute is fixed on structure on quantitative furnace (42) front end face and method by the aluminium water mouth of a river (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151803.7A CN104972078A (en) | 2014-04-13 | 2014-04-13 | Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum |
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| CN201410151803.7A CN104972078A (en) | 2014-04-13 | 2014-04-13 | Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum |
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| CN201410151803.7A Pending CN104972078A (en) | 2014-04-13 | 2014-04-13 | Efficient thermal-insulation anti-oxidization aluminum water runner not adhering with aluminum |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562646A (en) * | 2015-12-18 | 2016-05-11 | 重庆市特泰机械制造有限公司 | Liquid inflow device used for centrifugal casting |
| CN109900937A (en) * | 2019-04-10 | 2019-06-18 | 河南科技大学 | A kind of lithium battery charge state evaluation method with temperature compensation function |
| CN112944919A (en) * | 2019-11-26 | 2021-06-11 | 科德尔科股份公司 | Hot channel for transferring white metal in a smelting furnace |
| CN114850458A (en) * | 2022-05-24 | 2022-08-05 | 安徽永茂泰铝业有限公司 | Intelligent nitrogen quantitative feeding equipment for molten aluminum alloy |
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| GB2410455B (en) * | 2003-10-11 | 2006-10-11 | Pyrotek Engineering Materials | Casting ladle |
| CN101094739A (en) * | 2004-12-30 | 2007-12-26 | 奥图泰有限公司 | Launder for casting molten copper |
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| GB2410455B (en) * | 2003-10-11 | 2006-10-11 | Pyrotek Engineering Materials | Casting ladle |
| CN101094739A (en) * | 2004-12-30 | 2007-12-26 | 奥图泰有限公司 | Launder for casting molten copper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562646A (en) * | 2015-12-18 | 2016-05-11 | 重庆市特泰机械制造有限公司 | Liquid inflow device used for centrifugal casting |
| CN109900937A (en) * | 2019-04-10 | 2019-06-18 | 河南科技大学 | A kind of lithium battery charge state evaluation method with temperature compensation function |
| CN109900937B (en) * | 2019-04-10 | 2020-12-08 | 河南科技大学 | Lithium battery charge state estimation method with temperature compensation function |
| CN112944919A (en) * | 2019-11-26 | 2021-06-11 | 科德尔科股份公司 | Hot channel for transferring white metal in a smelting furnace |
| CN114850458A (en) * | 2022-05-24 | 2022-08-05 | 安徽永茂泰铝业有限公司 | Intelligent nitrogen quantitative feeding equipment for molten aluminum alloy |
| CN114850458B (en) * | 2022-05-24 | 2023-01-10 | 安徽永茂泰铝业有限公司 | Intelligent nitrogen quantitative feeding equipment for molten aluminum alloy |
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