CN102179506A - Compound heat insulation baffle used for directional solidification - Google Patents
Compound heat insulation baffle used for directional solidification Download PDFInfo
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- CN102179506A CN102179506A CN 201110087122 CN201110087122A CN102179506A CN 102179506 A CN102179506 A CN 102179506A CN 201110087122 CN201110087122 CN 201110087122 CN 201110087122 A CN201110087122 A CN 201110087122A CN 102179506 A CN102179506 A CN 102179506A
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Abstract
The invention relates to a compound heat insulation baffle used for directional solidification, and the baffle provided by the invention comprises two layers of molybdenum sheets, a layer of graphite felt and a layer of punched felt, wherein a first layer of molybdenum sheet is arranged on the bottom layer; the punched felt is arranged on the upper surface of the first layer of molybdenum sheet; the graphite felt is arranged on the upper surface of the punched felt; the other layer of molybdenum sheet is arranged on the upper surface of the graphite felt; the two layers of molybdenum sheets, the layer of graphite felt and the layer of punched felt are fastened tightly by using molybdenum bolts; the two layers of molybdenum sheets, the layer of graphite felt and the layer of punched felt are concentrically arranged; the molybdenum sheets are 1-3mm in thickness; the graphite felt is 3-5mm in thickness; the punched felt is 2-3mm in thickness; the inner edge of the graphite felt is cut along the orthogonal direction; and the cut depth is the depth of the inner edge, exceeding the inner edge of the molybdenum sheet, of the graphite felt after the graphite felt is superposed with the molybdenum sheet. Compared with the annular compound heat insulation baffle adopted in the prior art, the compound heat insulation baffle provided by the invention can be used for increasing the temperature gradient by 10%.
Description
Technical field
The present invention relates to the unidirectional solidification material preparation field, specifically is a kind of high temperature compound heat-insulation baffle plate that is applied to device for directionally solidifying.
Background technology
In the directional solidification process, the casting mold that is poured into alloy liquid being drawn in low-temperature space with certain speed from the high-temperature region, form the higher thermograde in solid/liquid interfaces forward position, is the key that obtains good foundry goods tissue.Keep heat as much as possible from the cooling zone cast outer surface scatter and disappear, reduce the heat loss through radiation of the thermal treatment zone to the cooling zone, be the key that obtains high-temperature gradient.In order to shield the heat loss through radiation of high-temperature region to low-temperature space, strengthen the one-way of hot-fluid, a cover thermal baffle is set in bottom, the stove thermal treatment zone, by thermal baffle the thermal treatment zone and cooling zone two parts are separated.The effect of heat insulation of thermal baffle has direct influence to the thermograde in directional solidification solid/liquid interfaces forward position.
At present, the thermal baffle material in the large-scale apparatus for directional solidification is mainly corundum, graphite felt etc., the part but these type thermal baffle materials all come with some shortcomings.Corundum ring has certain heat-resisting ability, but in high temperature uses cracking easily, thereby it is shorter to influence its effect of heat insulation, life-span; Though graphite felt has effect of heat insulation preferably, itself be black, radiation effect is not good.Application number is that 01250519.6 Chinese utility model patent has been described a kind of thermal baffle that is used for apparatus for directional solidification, this baffle plate is by the carbon felt and molybdenum sheet is coaxial stacks together, but its center via hole is big and fixing, when irregularly shaped cross section foundry goods and the foundry goods with a plurality of size cross sections pass through from via hole, have big gap between thermal baffle inner edge and the foundry goods formwork outer surface, effect of heat insulation is relatively poor, cause thermal treatment zone heat from scattering and disappearing in a large number between formwork and the heat insulation thermal baffle, the heat that especially is radiated the cold-zone has a strong impact on the thermograde in upper and lower district.Application number provides a kind of thermal baffle that is spliced by multi-disc carbon felt for 200510046341.3 Chinese invention patent, its feature mainly is approaching for carry out radiation heat insulation and center via shape and size and foundry goods cross section outline by carbon felt upper surface graphite paper, can play the effect that improves effect of heat insulation, but the bright surface radiation effect of its upper surface is compared relatively poor with molybdenum sheet, the effect of heat insulation of carbon felt is also poor than the alumina silicate Nomex at certain temperature range, thereby effect of heat insulation also has room for promotion.
Summary of the invention
For overcome exist in the prior art or shape immutable, and the space is bigger between casting mold, and is serious to the low-temperature space heat radiation from the high-temperature region; Perhaps the not good deficiency of effect of heat insulation the present invention proposes a kind of directional solidification compound heat-insulation baffle plate.
The present invention includes two-layer molybdenum sheet, one deck graphite felt and one deck Nomex; Wherein, the ground floor molybdenum sheet is at the bottom; Nomex is positioned at the upper surface of ground floor molybdenum sheet; Graphite felt is positioned at the upper surface of Nomex; Another layer molybdenum sheet is placed on the upper surface of graphite felt; With above-mentioned two-layer molybdenum sheet, one deck graphite felt and Nomex molybdenum bolt tightening, and make two-layer molybdenum sheet, one deck graphite felt and Nomex concentric.The thickness of described molybdenum sheet is 1～3mm, and the thickness of described graphite felt is 3～5mm, and the thickness of described Nomex is 2～3mm.
Described 2 layers of molybdenum sheet, graphite felt and Nomex are annular plate-like, and the external diameter of 2 layers of molybdenum sheet, graphite felt and Nomex all the internal diameter with the calandria screen layer is identical; The internal diameter of molybdenum sheet, Nomex is identical with the maximum outside diameter of formwork; The interior hole shape of graphite felt and the minimum cross-section profile of formwork are coincide, and the graphite felt internal diameter is less than the molybdenum sheet internal diameter.
The inner edge of graphite felt is cut off along orthogonal direction, and the degree of depth of cutting off is the degree of depth that the inner edge of graphite felt exceeded the molybdenum sheet inner margin portion after graphite felt and molybdenum sheet stacked.
As top thermal insulation layer, at high temperature the surface has stronger metallic luster with molybdenum sheet in the present invention, and the radiation thermal insulation is respond well, and service life is longer.The carbon felt that the second layer adopts has effect of heat insulation good under the high temperature, and it has the via hole that coincide with foundry goods formwork size smallest cross-sectional shape through processing and make it nearer apart from the formwork size, and the space is very little, and effect of heat insulation is good.The alumina silicate Nomex of the 3rd layer of employing is in humidity province, 1000 ℃ of left and right sides, and its effect of heat insulation is much better than materials such as carbon felt under this temperature.Compare with the annular compound thermal baffle of available technology adopting, the present invention can make thermograde improve 10%.
Among the present invention molybdenum sheet, carbon felt, alumina silicate Nomex, recirculated water cooling trays are used, to bring into play every layer material advantage separately.Molybdenum sheet is as top thermal insulation layer, and at high temperature the surface has stronger metallic luster, and the radiation thermal insulation is respond well, and uses not easy fracture under the long term high temperature; The second layer uses the carbon felt to carry out thermal insulation, and as the good material of effect of heat insulation under the high temperature, and it has the via hole that coincide with foundry goods formwork size smallest cross-sectional shape through processing and make it nearer apart from the formwork size carbon felt at this, and the space is very little, and effect of heat insulation is good; Preceding two-layer thermal insulation and the radiation effects cooling effect of bottom aqueous cold plate in addition make the 3rd layer of alumina silicate Nomex position temperature drop to about 1000 ℃, enter the operating temperature range of alumina silicate Nomex, in this temperature range, the thermal conductivity factor of carbon felt is about 0.45, and the thermal conductivity factor of alumina silicate Nomex has only about 0.2, effect of heat insulation is better than materials such as carbon felt, and its thickness is generally less, so select for use the alumina silicate Nomex to place the 3rd layer.The 4th layer is still adopted molybdenum sheet, and it is a two-layer heat-barrier material and a further radiation temperature insulating in the middle of the top layer molybdenum sheet is fixing.Bottom recirculated water cooling pallet is lowered the temperature to the present invention, increases the cooled region cooling effect simultaneously, improves foundry goods solid/liquid interfaces temp gradient at front edge.The annular compound thermal baffle of prior art is compared, and adopts the present invention can make thermograde improve 10%.
Description of drawings
Fig. 1 is the structural representation of directional solidification with the compound heat-insulation baffle plate;
Fig. 2 is the AA profile of Fig. 1;
Fig. 3 draws out the micro-organization chart of blade class sample for application device for directionally solidifying of the present invention;
Fig. 4 draws out the micro-organization chart of blade class sample for the device for directionally solidifying of using general annular thermal baffle.
In the accompanying drawing:
1. molybdenum bolt 2. molybdenum sheets 3. graphite felt 4. Nomexs 5. water-cooled copper dishes
6. bolt 7. calandria screen layers 8. formworks
Concrete embodiment
Embodiment one
Present embodiment is a kind of compound heat-insulation baffle plate of the HRS of being used for device for directionally solidifying, is applicable to 1480-1620 ℃ of high temperature.
As shown in Figure 1.Present embodiment comprises the Nomex 4 that graphite felt 3 that the thick molybdenum sheet of two-layer 1mm 2, one deck 5mm are thick and the thick alumina silicate of one deck 2mm are made.One deck molybdenum sheet 2 is placed on the bottom; Nomex 4 is placed on the upper surface of ground floor molybdenum sheet 2; Graphite felt 3 is positioned at the upper surface of Nomex 4; Another layer molybdenum sheet 2 is placed on the upper surface of graphite felt 3; With above-mentioned two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 molybdenum bolt tightening, and make two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 concentric, formed the described compound heat-insulation baffle plate that is used for device for directionally solidifying of present embodiment.During use, the compound heat-insulation baffle plate is placed the upper surface of water-cooled copper dish 5, and be positioned at calandria screen layer 7.The water-cooled copper dish is fixed in heat preservation zone insulating layer of furnace body below by bolt 6.
2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 are annular plate-like, and the external diameter of 2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 all the internal diameter with calandria screen layer 7 is identical; The internal diameter of molybdenum sheet 2, Nomex 4 is identical with the maximum outside diameter of formwork 8.As shown in Figure 2, the interior hole shape of graphite felt 3 and the minimum cross-section profile of formwork 8 are coincide, and graphite felt 3 internal diameters are less than molybdenum sheet 2 internal diameters; The inner edge of graphite felt 3 is cut off along orthogonal direction, and the degree of depth of cutting off is the degree of depth of molybdenum sheet that inner edge exceeds 2 inner margin portion of graphite felt 3 after graphite felt 3 stacks with molybdenum sheet 2, makes formwork 8 maximum gauges partly can from the endoporus of graphite felt 3, pull out smoothly.Slit between graphite felt 3 internal diameters and the formwork 8 maximum gauge places is 5mm.
Good many new materials of intelligence technology of preparing Co., Ltd buys described water-cooled copper dish 5 from Shenyang, and its external diameter is identical with the external diameter of compound heat-insulation baffle plate.Water-cooled copper dish 5 thickness are 20mm, and inner loop aquaporin diameter is 10mm.The via hole that formwork is arranged at the center of water-cooled copper dish 5; The spiral helicine recirculated water cooling passage of via hole that winding mold shell 8 is arranged in water-cooled copper dish 5 inside.The two ends of this recirculated water cooling passage are the import and the outlet of cooling water respectively.
Molybdenum sheet 2 in the present embodiment is selected the product of Baoji Boxin Metal Materials Co., Ltd. for use.Graphite felt 3 is selected the product of silver Fu Ruike technology-industry-trade Co., Ltd for use; Graphite felt 3 selects to have the above bending strength type of 0.65Mpa, makes the inner edge place of graphite felt 3 be cut as Fig. 2 shape and still keeps original shape.Nomex 4 is the alumina silicate Nomex, selects the product of the grand Li Baowenjiancaichang in Langfang for use.
Compound heat-insulation baffle plate in the present embodiment is applicable to the HRS apparatus for directional solidification.The compound heat-insulation baffle plate is placed under the vacuum environment, and be located at below, the thermal treatment zone.Recirculated water cooling copper dish 5 is positioned at this compound heat-insulation baffle plate below, with support compound heat-insulation baffle plate, and keeps alumina silicate Nomex 4 temperature, strengthens the cooling effect of cooling zone, improves casting solidification solid/liquid interfaces place thermograde.Use present embodiment, make the general annular compound thermal baffle of setting temperature gradient of foundry goods higher, and prepare the foundry goods structural homogenity and be significantly improved, as shown in Figure 3 and Figure 4.
Embodiment two
Present embodiment is a kind of compound heat-insulation baffle plate of the HRS of being used for device for directionally solidifying, is applicable to 1480-1620 ℃ of high temperature.
As shown in Figure 1.Present embodiment comprises the Nomex 4 that graphite felt 3 that the thick molybdenum sheet of two-layer 2mm 2, one deck 3mm are thick and the thick alumina silicate of one deck 3mm are made.One deck molybdenum sheet 2 is placed on the bottom; Nomex 4 is placed on the upper surface of ground floor molybdenum sheet 2; Graphite felt 3 is positioned at the upper surface of Nomex 4; Another layer molybdenum sheet 2 is placed on the upper surface of graphite felt 3; With above-mentioned two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 molybdenum bolt tightening, and make two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 concentric, formed the described compound heat-insulation baffle plate that is used for device for directionally solidifying of present embodiment.During use, the compound heat-insulation baffle plate is placed the upper surface of water-cooled copper dish 5, and be positioned at calandria screen layer 7.The water-cooled copper dish is fixed in heat preservation zone insulating layer of furnace body below by bolt 6.
2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 are annular plate-like, and the external diameter of 2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 all the internal diameter with calandria screen layer 7 is identical; The internal diameter of molybdenum sheet 2, Nomex 4 is identical with the maximum outside diameter of formwork 8.As shown in Figure 2, the interior hole shape of graphite felt 3 and the minimum cross-section profile of formwork 8 are coincide, and graphite felt 3 internal diameters are less than molybdenum sheet 2 internal diameters; The inner edge of graphite felt 3 is cut off along orthogonal direction, and the degree of depth of cutting off is the degree of depth of molybdenum sheet that inner edge exceeds 2 inner margin portion of graphite felt 3 after graphite felt 3 stacks with molybdenum sheet 2, makes formwork 8 maximum gauges partly can from the endoporus of graphite felt 3, pull out smoothly.Slit between graphite felt 3 internal diameters and the formwork 8 maximum gauge places is 5mm.
Good many new materials of intelligence technology of preparing Co., Ltd buys described water-cooled copper dish 5 from Shenyang, and its external diameter is identical with the external diameter of compound heat-insulation baffle plate.Water-cooled copper dish 5 thickness are 20mm, and inner loop aquaporin diameter is 10mm.The via hole that formwork is arranged at the center of water-cooled copper dish 5; The spiral helicine recirculated water cooling passage of via hole that winding mold shell 8 is arranged in water-cooled copper dish 5 inside.The two ends of this recirculated water cooling passage are the import and the outlet of cooling water respectively.
Molybdenum sheet 2 in the present embodiment is selected the product of Baoji Boxin Metal Materials Co., Ltd. for use.Graphite felt 3 is selected the product of silver Fu Ruike technology-industry-trade Co., Ltd for use; Graphite felt 3 selects to have the above bending strength type of 0.5Mpa, makes the inner edge place of graphite felt 3 be cut as Fig. 2 shape and still keeps original shape.Nomex 4 is the alumina silicate Nomex, selects the product of the grand Li Baowenjiancaichang in Langfang for use.
Compound heat-insulation baffle plate in the present embodiment is applicable to the HRS apparatus for directional solidification.The compound heat-insulation baffle plate is placed under the vacuum environment, and be located at below, the thermal treatment zone.Recirculated water cooling copper dish 5 is positioned at this compound heat-insulation baffle plate below, with support compound heat-insulation baffle plate, and keeps alumina silicate Nomex 4 temperature, strengthens the cooling effect of cooling zone, improves casting solidification solid/liquid interfaces place thermograde.Use present embodiment, make the general annular compound thermal baffle of setting temperature gradient of foundry goods improve more than 7%.
Embodiment three
Present embodiment is a kind of compound heat-insulation baffle plate of the HRS of being used for device for directionally solidifying, is applicable to 1480-1620 ℃ of high temperature.
As shown in Figure 1.Present embodiment comprises the Nomex 4 that graphite felt 3 that the thick molybdenum sheet of two-layer 3mm 2, one deck 4mm are thick and the thick alumina silicate of one deck 2mm are made.One deck molybdenum sheet 2 is placed on the bottom; Nomex 4 is placed on the upper surface of ground floor molybdenum sheet 2; Graphite felt 3 is positioned at the upper surface of Nomex 4; Another layer molybdenum sheet 2 is placed on the upper surface of graphite felt 3; With above-mentioned two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 molybdenum bolt tightening, and make two-layer molybdenum sheet 2, one deck graphite felt 3 and Nomex 4 concentric, formed the described compound heat-insulation baffle plate that is used for device for directionally solidifying of present embodiment.During use, the compound heat-insulation baffle plate is placed the upper surface of water-cooled copper dish 5, and be positioned at calandria screen layer 7.The water-cooled copper dish is fixed in heat preservation zone insulating layer of furnace body below by bolt 6.
2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 are annular plate-like, and the external diameter of 2 layers of molybdenum sheet 2, graphite felt 3 and Nomex 4 all the internal diameter with calandria screen layer 7 is identical; The internal diameter of molybdenum sheet 2, Nomex 4 is identical with the maximum outside diameter of formwork 8.As shown in Figure 2, the interior hole shape of graphite felt 3 and the minimum cross-section profile of formwork 8 are coincide, and graphite felt 3 internal diameters are less than molybdenum sheet 2 internal diameters; The inner edge of graphite felt 3 is cut off along orthogonal direction, and the degree of depth of cutting off is the degree of depth of molybdenum sheet that inner edge exceeds 2 inner margin portion of graphite felt 3 after graphite felt 3 stacks with molybdenum sheet 2, makes formwork 8 maximum gauges partly can from the endoporus of graphite felt 3, pull out smoothly.Slit between graphite felt 3 internal diameters and the formwork 8 maximum gauge places is 5mm.
Good many new materials of intelligence technology of preparing Co., Ltd buys described water-cooled copper dish 5 from Shenyang, and its external diameter is identical with the external diameter of compound heat-insulation baffle plate.Water-cooled copper dish 5 thickness are 20mm, and inner loop aquaporin diameter is 10mm.The via hole that formwork is arranged at the center of water-cooled copper dish 5; The spiral helicine recirculated water cooling passage of via hole that winding mold shell 8 is arranged in water-cooled copper dish 5 inside.The two ends of this recirculated water cooling passage are the import and the outlet of cooling water respectively.
Molybdenum sheet 2 in the present embodiment is selected the product of Baoji Boxin Metal Materials Co., Ltd. for use.Graphite felt 3 is selected the product of silver Fu Ruike technology-industry-trade Co., Ltd for use; Graphite felt 3 selects to have the above bending strength type of 0.65Mpa, makes the inner edge place of graphite felt 3 be cut as Fig. 2 shape and still keeps original shape.Nomex 4 is the alumina silicate Nomex, selects the product of the grand Li Baowenjiancaichang in Langfang for use.
Compound heat-insulation baffle plate in the present embodiment is applicable to the HRS apparatus for directional solidification.The compound heat-insulation baffle plate is placed under the vacuum environment, and be located at below, the thermal treatment zone.Recirculated water cooling copper dish 5 is positioned at this compound heat-insulation baffle plate below, with support compound heat-insulation baffle plate, and keeps alumina silicate Nomex 4 temperature, strengthens the cooling effect of cooling zone, improves casting solidification solid/liquid interfaces place thermograde.Use present embodiment, make the general annular compound thermal baffle of setting temperature gradient of foundry goods higher, and prepare the foundry goods structural homogenity and be significantly improved, as shown in Figure 3 and Figure 4.
Claims (4)
1. a directional solidification compound heat-insulation baffle plate comprises two-layer molybdenum sheet (2) and one deck graphite felt (3), it is characterized in that, also includes one deck Nomex (4); Wherein, ground floor molybdenum sheet (2) is at the bottom; Nomex (4) is positioned at the upper surface of ground floor molybdenum sheet (2); Graphite felt (3) is positioned at the upper surface of Nomex (4); Another layer molybdenum sheet (2) is placed on the upper surface of graphite felt (3); Above-mentioned two-layer molybdenum sheet (2), one deck graphite felt (3) and Nomex (4) are used the molybdenum bolt tightening, and make two-layer molybdenum sheet (2), one deck graphite felt (3) and Nomex (4) concentric.
2. a kind of according to claim 1 directional solidification compound heat-insulation baffle plate, it is characterized in that, described 2 layers of molybdenum sheet (2), graphite felt (3) and Nomex (4) are annular plate-like, and the external diameter of 2 layers of molybdenum sheet (2), graphite felt (3) and Nomex (4) all the internal diameter with the calandria screen layer is identical; The internal diameter of molybdenum sheet (2), Nomex (4) is identical with the maximum outside diameter of formwork; The interior hole shape of graphite felt (3) and the minimum cross-section profile of formwork are coincide, and graphite felt (3) internal diameter is less than molybdenum sheet (2) internal diameter.
3. a kind of according to claim 1 directional solidification compound heat-insulation baffle plate, the thickness that it is characterized in that described molybdenum sheet (2) is 1～3mm, and the thickness of described graphite felt (3) is 3～5mm, and the thickness of described Nomex (4) is 2～3mm.
4. as a kind of directional solidification compound heat-insulation baffle plate as described in the claim 2, the inner edge that it is characterized in that graphite felt (3) is cut off along orthogonal direction, and the degree of depth of cutting off is the degree of depth of molybdenum sheet that inner edge exceeds (2) inner margin portion of graphite felt (3) after graphite felt (3) stacks with molybdenum sheet (2).
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| CN 201110087122 CN102179506A (en) | 2011-04-07 | 2011-04-07 | Compound heat insulation baffle used for directional solidification |
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| CN 201110087122 CN102179506A (en) | 2011-04-07 | 2011-04-07 | Compound heat insulation baffle used for directional solidification |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400206A (en) * | 2011-11-15 | 2012-04-04 | 中国航空工业集团公司北京航空材料研究院 | Combined type heat-insulating baffle for increasing monocrystal solidification temperature gradient |
| CN103160934A (en) * | 2011-12-18 | 2013-06-19 | 洛阳金诺机械工程有限公司 | Device and method of temperature gradient control in growth process of crystal material |
| WO2019122111A1 (en) * | 2017-12-21 | 2019-06-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Crucible for directional solidification |
| WO2019122108A1 (en) * | 2017-12-21 | 2019-06-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Crucible for directed solidification of an ingot |
| CN110315033A (en) * | 2019-07-04 | 2019-10-11 | 深圳市万泽中南研究院有限公司 | Ceramic shell mould and its manufacturing method for casting single crystal blade |
| CN112191802A (en) * | 2020-09-23 | 2021-01-08 | 西北工业大学 | Preparation method of Nb-Si-based ultrahigh-temperature alloy directional solidification blade simulation piece |
| CN112522494A (en) * | 2020-12-01 | 2021-03-19 | 中国科学院金属研究所 | Gradient heat treatment method for double-structure and double-performance rod-shaped material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495968Y (en) * | 2001-08-31 | 2002-06-19 | 中国科学院金属研究所 | High temp. thermal insulation blocking plate |
| CN2636181Y (en) * | 2003-07-04 | 2004-08-25 | 中国科学院金属研究所 | High temp. thermal-insulating screen |
| CN1853826A (en) * | 2005-04-29 | 2006-11-01 | 中国科学院金属研究所 | Heat-insulated baffle for oriented freezing cast |
| CN202070753U (en) * | 2011-04-07 | 2011-12-14 | 西北工业大学 | Composite heat insulation baffle for directional solidification |
-
2011
- 2011-04-07 CN CN 201110087122 patent/CN102179506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2495968Y (en) * | 2001-08-31 | 2002-06-19 | 中国科学院金属研究所 | High temp. thermal insulation blocking plate |
| CN2636181Y (en) * | 2003-07-04 | 2004-08-25 | 中国科学院金属研究所 | High temp. thermal-insulating screen |
| CN1853826A (en) * | 2005-04-29 | 2006-11-01 | 中国科学院金属研究所 | Heat-insulated baffle for oriented freezing cast |
| CN202070753U (en) * | 2011-04-07 | 2011-12-14 | 西北工业大学 | Composite heat insulation baffle for directional solidification |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400206A (en) * | 2011-11-15 | 2012-04-04 | 中国航空工业集团公司北京航空材料研究院 | Combined type heat-insulating baffle for increasing monocrystal solidification temperature gradient |
| CN102400206B (en) * | 2011-11-15 | 2014-09-24 | 中国航空工业集团公司北京航空材料研究院 | Combined type heat-insulating baffle for increasing monocrystal solidification temperature gradient |
| CN103160934A (en) * | 2011-12-18 | 2013-06-19 | 洛阳金诺机械工程有限公司 | Device and method of temperature gradient control in growth process of crystal material |
| CN103160934B (en) * | 2011-12-18 | 2016-05-18 | 洛阳金诺机械工程有限公司 | Thermograde control device and method thereof when a kind of grown crystal material |
| FR3075672A1 (en) * | 2017-12-21 | 2019-06-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | CUSHION FOR DIRECTED SOLIDIFICATION |
| WO2019122108A1 (en) * | 2017-12-21 | 2019-06-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Crucible for directed solidification of an ingot |
| WO2019122111A1 (en) * | 2017-12-21 | 2019-06-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Crucible for directional solidification |
| FR3075671A1 (en) * | 2017-12-21 | 2019-06-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | CUSHION FOR THE DIRECTED SOLIDIFICATION OF A INGOT |
| CN110315033A (en) * | 2019-07-04 | 2019-10-11 | 深圳市万泽中南研究院有限公司 | Ceramic shell mould and its manufacturing method for casting single crystal blade |
| CN112191802A (en) * | 2020-09-23 | 2021-01-08 | 西北工业大学 | Preparation method of Nb-Si-based ultrahigh-temperature alloy directional solidification blade simulation piece |
| CN112191802B (en) * | 2020-09-23 | 2022-04-12 | 西北工业大学 | Preparation method of Nb-Si-based ultrahigh-temperature alloy directional solidification blade simulation piece |
| CN112522494A (en) * | 2020-12-01 | 2021-03-19 | 中国科学院金属研究所 | Gradient heat treatment method for double-structure and double-performance rod-shaped material |
| CN112522494B (en) * | 2020-12-01 | 2022-01-28 | 中国科学院金属研究所 | Gradient heat treatment method for double-structure and double-performance rod-shaped material |
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Application publication date: 20110914 |