CN107721427A - A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process - Google Patents
A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process Download PDFInfo
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- CN107721427A CN107721427A CN201711205102.7A CN201711205102A CN107721427A CN 107721427 A CN107721427 A CN 107721427A CN 201711205102 A CN201711205102 A CN 201711205102A CN 107721427 A CN107721427 A CN 107721427A
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- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/521—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained by impregnation of carbon products with a carbonisable material
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- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
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Abstract
The invention discloses a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, the crucible by percentage to the quality, including following component：C 78.3%~84.5%, Ti 0.2%~0.8%, B 1%~3%, Al 2%~6%, Si 1%~3%, Mg 1%~5%, Ca 1%~5%；The manufacturing process of the combination graphite crucible comprises the following steps：Graphite sealant is prepared, single-steeping, is once calcined, additive preparation, double-steeping, after baking；The crucible includes crucible body, and the crucible body stacks gradually joggle by Part I, Part II and Part III and formed；It is low with stock utilization that present invention combination graphite crucible effectively solves the problems, such as that the capacity of integral type crucible is limited by graphite substrate material specification, improves leakage performance, antioxygenic property and the erosion-resisting characteristics of the graphite crucible used in new-energy automobile power battery electrolysis fused salt.
Description
Technical field
The present invention relates to a kind of crucible, more particularly to a kind of new-energy automobile power battery special combination graphite crucible and its
Manufacturing process and its manufacturing process.
Background technology
Due to the getting worse of atmosphere pollution, the new-energy automobile industry entry peak period of development, and new-energy automobile
Power core --- the development of automobile power cell also enters a high-speed development period therewith.In high-temperature electrolysis fused salt process
In, salt pond（Electrolytic cell）As most important problem, and maximum bottleneck.Graphite material be current salt pond matrix material the most
Preferably selection, so, the performance and structure of graphite crucible also become the problem of most crucial.At present, graphite crucible is being electrolysed
The problem of three aspects in fused salt process be present：Problem one is that the material for being electrolysed fused salt becomes molten condition, fused salt at high temperature
Penetration is very strong, can be penetrated into by the stomata of graphite outside crucible groove, so as to cause fused salt to reveal；Problem two is fused salt process pair
Graphite material has very strong erosiveness, during prolonged high-temperature electrolysis, can constantly corrode graphite surface, destroy stone
The structure of ink, shorten the service life of graphite crucible；Problem three be the temperature of fused salt at 1000 DEG C or so, and graphite material is normal
400 DEG C of pressure starts to aoxidize, and graphite crucible is in most strong oxidized temperature range.So selection graphite crucible is made
For salt pond, it is necessary to solve graphite crucible easy to leak, it is oxidizable, easily corrode these three problems could normal use.
At present, the processing method of integral type purpose square graphite crucible is to use graphite square billet material, will using mechanical processing toolses
It, which is hollowed out, forms.Graphite raw material utilization rate only has 30%, and remaining 70% is graphite powder offal entirely.Meanwhile the graphite of integral type
Crucible is limited by matrix material specification, can not produce the crucible of big specification Large Copacity, constrains the industries such as melting, purification company
The production requirement of continuous formula scale.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of new-energy automobile power battery special combination graphite crucible and
Its manufacturing process, to solve the easy to leak of graphite crucible, capacity that is oxidizable, easily corroding these three problems and integral type crucible
The problem of low with stock utilization is limited by graphite substrate material specification.To achieve the above object, skill of the present invention
Art scheme is：
The present invention provides a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, with mass percent
Meter, including following component：C 78.3%~84.5%, Ti 0.2%~0.8%, B 1%~3%, Al 2%~6%, Si 1%~3%, Mg
1%~5%, Ca 1%~5%.
The present invention also provides a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, including such as
Lower step：
Step 1：Graphite sealant is prepared, first pours into phenolic resin in agitator, adds graphite sealant while stirring
Auxiliary agent, after being well mixed, according to the viscosity of mixing liquid, add the alcohol that volume fraction is 99% and dilute, quiet put 18 hours is made
Obtain graphite sealant；
Step 2：Single-steeping, graphite substrate material is put into impregnating autoclave, will by -0.03~-0.09MPa vacuum
In graphite sealant liquid suction impregnating autoclave, single-steeping is completed under 0.1MPa~2MPa pressure；
Step 3：Once it is calcined, the graphite material impregnated by graphite sealant is put into vacuum gas protection stove, 700
DEG C~1300 DEG C at a temperature of, through 180~240 hours complete once be calcined；
Step 4：Additive preparation, first graphite antioxidant is poured into the agitator for filling water, add graphite while stirring and resist
Aggressive agent, after being well mixed, stop stirring, it is quiet to put 24 hours obtained additives；
Step 5：Double-steeping, the graphite substrate material after the impregnation of graphite antiseep and high temperature are once calcined is put into
In impregnating autoclave, by -0.03~-0.09MPa vacuum, additive mixed liquor body is sucked in impregnating autoclave, 0.1MPa~
Double-steeping is completed under 2MPa pressure；
Step 6：After baking, the graphite material after being handled by double-steeping is put into vacuum gas protection stove, 800 DEG C~
At a temperature of 1600 DEG C, it is made through the after baking of 120~180 hours.
Three kinds of compositions of graphite sealant described in above-mentioned steps 1 match as follows, phenolic resin by percentage to the quality
50%~60%, graphite sealant auxiliary agent 40%~50%, surplus is the alcohol that volume fraction is 99%；
Two kinds of compositions described in step 4 in additive match as follows by percentage to the quality：Graphite antioxidant 45%~54%,
Chemical composition Al and Si；Graphite anti-erosion agent 45%~54%, chemical composition Mg and Ca；Surplus is water；
Wherein, in the graphite sealant auxiliary agent, Ti 10.5%~15.5%, B 47.5%~52.5%, C 35.5%~
40.5%；In the graphite antioxidant, Al 60%~73.5%, Si 26.5%~40%；In the graphite anti-erosion agent, Mg
50%~53.5%, Ca 46.5%~50%.
Above-mentioned impregnating autoclave completes single-steeping technique under preferably -0.06MPa vacuum, 1MPa pressure；Above-mentioned one
Preferably 1000 DEG C of sintering temperature in secondary roasting vacuum gas protection stove, roasting time preferably 210 hours.
Above-mentioned impregnating autoclave completes double-steeping technique under preferably -0.06MPa vacuum, 1MPa pressure；Above-mentioned two
Preferably 1200 DEG C of sintering temperature in secondary roasting vacuum gas protection stove, roasting time preferably 150 hours.
Combinations thereof graphite crucible, including crucible body, the crucible body is by Part I, Part II and the 3rd
Point stacking gradually joggle forms, and the Part I includes be located at undermost crucible bottom, and the crucible bottom is upper opening
Box-like structure, the upper surface at crucible bottom are provided with two group of first slot with width along its length, first slot and
Second slot overlaps from beginning to end successively；The Part II positioned at middle level includes head and the tail overlap joint formation successively and encloses the first of shape structure
Backplate and the second backplate, first backplate and the second backplate width are identical, length is different and structure is the same, first backplate
Or second backplate bottom surface be provided with the first tenon being mutually matched with the first slot, upper surface is provided with the second slot, described
First tenon sidepiece protrudes the end face of the first backplate or the second backplate, and the side of the first backplate or the second backplate vertically offers the
One chute, on first backplate or the second backplate the Side tabs of the first tenon be plugged on successively the first adjacent backplate or
Formed in first chute of the second backplate and enclose shape；The Part III positioned at upper strata includes head and the tail overlap joint formation successively and encloses shape knot
The first coaming plate and the second coaming plate of structure, first coaming plate and the second coaming plate width are identical, length is different and structure is the same, and first
Coaming plate is laid in the second slot of the first backplate, and the second coaming plate is laid in the second slot of the second backplate, the first coaming plate or
One side end face of the second coaming plate is convexly equipped with the second tenon, and the side of the first coaming plate or the second coaming plate vertically offers the second chute,
The second tenon is plugged on the second chute of the first adjacent coaming plate or the second coaming plate successively on first coaming plate or the second coaming plate
Shape is enclosed in interior formation；Between first tenon and the first slot, between the first tenon and the first chute, the second tenon and second slide
Bond layer is provided with the gap connected between groove, between the first coaming plate or the second coaming plate and the second slot.
Further, the inside corner at the crucible bottom is fillet R50 transition；The first slot on the crucible bottom is worn
After the first slot adjacent thereto along clockwise direction.
Further, the length of first backplate and the width sum of the second backplate are equal to the length at crucible bottom；It is described
The first chute on first backplate or the second backplate is mutually communicated after being intersected vertically with the second slot；Described first backplate height etc.
In the second backplate height, first coaming plate is highly equal to the second coaming plate height.
Further, the adhesive layer realizes the bonding to each part of crucible body and sealing, and roasting process
Middle adhesive layer can be bonded to one with crucible.
Further, the depth and width of the first slot are equal to the depth and width of the second slot, first coaming plate or the
The height of two coaming plates is more than the depth of the first slot or the second slot；The width of first coaming plate and the second coaming plate is equal to the first backplate
Or second second chute on backplate width.
The beneficial effects of the invention are as follows：
1st, combination graphite crucible of the invention is provided with more preferable leakage performance, antioxygenic property and erosion-resisting characteristics, solves
The easy to leak of existing graphite crucible, oxidizable, the problem of easily corroding.
2nd, present invention combination graphite crucible effectively solves the capacity of integral type crucible by graphite substrate material specification
The problem of limitation is low with stock utilization, each part can splice, and not limited by capacity, improve to greatest extent
The utilization rate of material, while also improve the production requirement of the industry continous way scale such as current melting, purification；Using the present invention
Each connector between using chase mortise structure connect, it is simple in construction, easy for installation, effectively reduce being produced into for product
This.
Brief description of the drawings
Fig. 1 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its blast knot of manufacturing process
Structure schematic diagram.
Fig. 2 is that the solid of a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its manufacturing process is shown
It is intended to.
Fig. 3 is crucible bottom in a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its manufacturing process
Schematic diagram.
Fig. 4 is the first shield in a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its manufacturing process
Plate and the schematic diagram of the second backplate connection.
Fig. 5 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its backplate of manufacturing process second
Schematic diagram.
Fig. 6 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its backplate of manufacturing process first
Schematic diagram.
Fig. 7 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its coaming plate of manufacturing process first
The schematic diagram connected with the second coaming plate.
Fig. 8 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its coaming plate of manufacturing process second
Schematic diagram.
Fig. 9 is a kind of new-energy automobile power battery special combination graphite crucible of the present invention and its coaming plate of manufacturing process first
Schematic diagram.
In figure marked as：1 is crucible bottom, and 2 be the second backplate, and 3 be the first backplate, and 4 be the second coaming plate, and 5 be the first coaming plate,
101 be the first slot, and 301 be the first tenon, and 302 be the second slot, and 303 be the first chute, and 401 be the second tenon, and 402 are
Second chute.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, the combination graphite crucible, with matter
Measure percentages, including following component：C 78.3%~86.5%, Ti 0.2%~0.8%, B 1%~3%, Al 2%~6%, Si 1%
~3%, Mg 1%~5%, Ca 1%~5%.
Combinations thereof graphite crucible manufacturing process, comprises the following steps：
Step 1：Graphite sealant is prepared, first pours into phenolic resin in agitator, adds graphite sealant while stirring
Auxiliary agent, after being well mixed, according to the viscosity of mixing liquid, add the alcohol that volume fraction is 99% and dilute, quiet put 18 hours is made
Obtain graphite sealant；
Step 2：Single-steeping, graphite substrate material is put into impregnating autoclave, will by -0.03~-0.09MPa vacuum
In graphite sealant liquid suction impregnating autoclave, single-steeping is completed under 0.1MPa~2MPa pressure；
Step 3：Once it is calcined, the graphite material impregnated by graphite sealant is put into vacuum gas protection stove, 700
DEG C~1300 DEG C at a temperature of, through 180~240 hours complete once be calcined；
Step 4：Additive preparation, first graphite antioxidant is poured into the agitator for filling water, add graphite while stirring and resist
Aggressive agent, after being well mixed, stop stirring, it is quiet to put 24 hours obtained additives；
Step 5：Double-steeping, the graphite substrate material after the impregnation of graphite antiseep and high temperature are once calcined is put into
In impregnating autoclave, by -0.03~-0.09MPa vacuum, additive mixed liquor body is sucked in impregnating autoclave, 0.1MPa~
Double-steeping is completed under 2MPa pressure；
Step 6：After baking, the graphite material after being handled by double-steeping is put into vacuum gas protection stove, 800 DEG C~
At a temperature of 1600 DEG C, it is made through the after baking of 120~180 hours.
The combination graphite crucible that the embodiment of the present invention processes by using graphite new material, enhances new-energy automobile
Leakage performance, antioxygenic property and the erosion-resisting characteristics of graphite crucible used in electrokinetic cell electrolysis fused salt.
Embodiment 2
A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, the combination graphite crucible is with quality
Percentages include：C 78.3%, Ti 0.2%, B 2.5%, Al 6%, Si 3%, Mg 5%, Ca 5%；
The manufacturing process of combinations thereof graphite crucible, comprises the following steps：
Step 1：By percentage to the quality, first 50% phenolic resin is poured into agitator, is slowly added into 50% graphite while stirring
Sealant auxiliary agent, it is quiet to put 18 hours obtained graphite sealants after being thoroughly mixed uniformly；
Step 2：Graphite substrate material is put into impregnating autoclave, by -0.03MPa vacuum, by graphite sealant liquid
Suck in impregnating autoclave, single-steeping is completed under 0.1MPa pressure；
Step 3：It is put into by the graphite material that graphite sealant has impregnated in vacuum gas protection stove, at a temperature of 700 DEG C, warp
Completion in 180 hours is once calcined；
Step 4：By percentage to the quality, first 45% graphite antioxidant is poured into the agitator for filling 10% water, while stirring
45% graphite anti-erosion agent is slowly added into, after being thoroughly mixed uniformly, stops stirring, it is quiet to put 24 hours obtained additives；
Step 5：Graphite material after the impregnation of graphite antiseep and high temperature are once calcined is put into impregnating autoclave, passed through
- 0.03MPa vacuum is crossed, additive mixed liquor body is sucked in impregnating autoclave, double-steeping is completed under 0.1MPa pressure；
Step 6：Graphite material after being handled by double-steeping is put into vacuum gas protection stove, at a temperature of 800 DEG C, warp
The after baking of 120 hours is made.
The combination graphite crucible that the embodiment of the present invention processes by using graphite new material, enhances new-energy automobile
Leakage performance, antioxygenic property and the erosion-resisting characteristics of graphite crucible used in electrokinetic cell electrolysis fused salt.
Embodiment 3
A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, the combination graphite crucible is with quality
Percentages include：C 85.5%, Ti 0.5%, B 2%, Al 4%, Si 2%, Mg 3%, Ca 3%；
The manufacturing process of combinations thereof graphite crucible, comprises the following steps：
Step 1：By percentage to the quality, first 57% synthetic resin is poured into agitator, is slowly added into 41% graphite while stirring
Sealant auxiliary agent, after being thoroughly mixed uniformly, surplus adds the alcohol that volume fraction is 99% and diluted, quiet to put 18 hours
Graphite sealant is made；
Step 2：Graphite substrate material is put into impregnating autoclave, by -0.06MPa vacuum, by graphite sealant liquid
Suck in impregnating autoclave, single-steeping is completed under 1MPa pressure；
Step 3：It is put into by the graphite material that graphite sealant has impregnated in vacuum gas protection stove, at a temperature of 1000 DEG C,
Completed once to be calcined through 210 hours；
Step 4：By percentage to the quality, first 45% graphite antioxidant is poured into the agitator for filling 5% water, while stirring slowly
It is slow to add 50% graphite anti-erosion agent, after being thoroughly mixed uniformly, stop stirring, it is quiet to put 24 hours obtained additives；
Step 5：Graphite material after the impregnation of graphite antiseep and high temperature are once calcined is put into impregnating autoclave, passed through
- 0.06MPa vacuum is crossed, additive mixed liquor body is sucked in impregnating autoclave, double-steeping is completed under 1MPa pressure；
Step 6：Graphite material after being handled by double-steeping is put into vacuum gas protection stove, at a temperature of 1200 DEG C, warp
The after baking of 150 hours is made.
The combination graphite crucible that the embodiment of the present invention processes by using graphite new material, enhances new-energy automobile
Leakage performance, antioxygenic property and the erosion-resisting characteristics of graphite crucible used in electrokinetic cell electrolysis fused salt.
Embodiment 4
A kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, the combination graphite crucible is with quality
Percentages include：C 86.5%, Ti 0.2%, B 3%, Al 2%, Si 2.3%, Mg 3%, Ca 3%；
The manufacturing process of combinations thereof graphite crucible, comprises the following steps：
Step 1：By percentage to the quality, first 51% phenolic resin is poured into agitator, is slowly added into 45% graphite while stirring
Sealant auxiliary agent, after being thoroughly mixed uniformly, surplus adds the alcohol that volume fraction is 99% and diluted, quiet to put 18 hours
Graphite sealant is made；
Step 2：Graphite substrate material is put into impregnating autoclave, by -0.09MPa vacuum, by graphite sealant liquid
Suck in impregnating autoclave, single-steeping is completed under 2MPa pressure；
Step 3：It is put into by the graphite material that graphite sealant has impregnated in vacuum gas protection stove, at a temperature of 1300 DEG C,
Completed once to be calcined through 240 hours；
Step 4：By percentage to the quality, first 54% graphite antioxidant is poured into the agitator for filling 1% water, while stirring slowly
It is slow to add 45% graphite anti-erosion agent, after being thoroughly mixed uniformly, stop stirring, it is quiet to put 24 hours obtained additives；
Step 5：Graphite material after the impregnation of graphite antiseep and high temperature are once calcined is put into impregnating autoclave, passed through
- 0.09MPa vacuum is crossed, additive mixed liquor body is sucked in impregnating autoclave, double-steeping is completed under 2MPa pressure；
Step 6：Graphite material after being handled by double-steeping is put into vacuum gas protection stove, at a temperature of 1600 DEG C, warp
The after baking of 180 hours is made.
The combination graphite crucible that the embodiment of the present invention processes by using graphite new material, enhances new-energy automobile
Leakage performance, antioxygenic property and the erosion-resisting characteristics of graphite crucible used in electrokinetic cell electrolysis fused salt.
Embodiment 5
As shown in Fig. 1~Fig. 9, a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, including earthenware
Crucible body, the crucible body stack gradually joggle by Part I, Part II and Part III and formed, the Part I
Including positioned at undermost crucible bottom 1, the crucible bottom 1 is the box-like structure of upper opening, and the upper surface at crucible bottom 1 is along length
Direction and width are provided with two group of first slot 101, and head and the tail overlap the slot 302 of the first slot 101 and second successively；
The Part II positioned at middle level includes head and the tail overlap joint successively and forms the first backplate 3 and the second backplate 2 for enclosing shape structure, described
First backplate 3 is identical with the width of the second backplate 2, length is different and structure as, the bottom of the backplate 2 of the first backplate 3 or second
Face is provided with the first tenon 301 being mutually matched with the first slot 101, upper surface is provided with the second slot 302, first tenon
The side of the end face of first 301 sidepiece the first backplate 3 of protrusion or the second backplate 2, the first backplate 3 or the second backplate 2 vertically offers
First chute 303, the Side tabs of the first tenon 301 are plugged on adjacent successively on the backplate 2 of the first backplate 3 or second
Formed in first chute 303 of the first backplate 3 or the second backplate 2 and enclose shape；The Part III positioned at upper strata includes first successively
Tail overlaps to form the first coaming plate 5 for enclosing shape structure and the second coaming plate 4, and first coaming plate 5 is identical with the width of the second coaming plate 4, long
Degree is different and structure is the same, and the first coaming plate 5 is laid in the second slot 302 of the first backplate 3, and the second coaming plate 4 is laid in second
In second slot 302 of backplate 2, a side end face of the first coaming plate 5 or the second coaming plate 4 is convexly equipped with the second tenon 401, the first coaming plate
5 or second the side of coaming plate 4 vertically offer the second chute 402, the second tenon 401 on the coaming plate 4 of the first coaming plate 5 or second
It is plugged on to be formed in the second chute 402 of the first adjacent coaming plate 5 or the second coaming plate 4 successively and encloses shape；First tenon 301 with
Between first slot 101, between the first tenon 301 and the first chute 303, between the second tenon 401 and the second chute 402,
Bond layer is provided with the gap connected between one coaming plate 5 or the second coaming plate 4 and the second slot 302；Crucible bottom 1, first
Backplate 3, the second backplate 2, the first coaming plate 5 and the second coaming plate 4 are made by graphite, and the inside corner at crucible bottom 1 is fillet R50
Transition；The first slot 101 on crucible bottom 1 passes through the first slot 101 adjacent thereto along clockwise direction, the first backplate 3
Length and the width sum of the second backplate 2 are equal to the length at crucible bottom 1；Adhesive layer is realized to each part of crucible body
Bond and seal, and adhesive layer can be bonded to one with crucible in roasting process；On first backplate 3 or the second backplate 2
One chute 303 is mutually communicated after being intersected vertically with the second slot 302, and the height of the first backplate 3 is equal to the height of the second backplate 2, described
The height of first coaming plate 5 is equal to the height of the second coaming plate 4, and the depth and width of the first slot 101 are equal to the depth of the second slot 302, width
Degree, the height of the coaming plate 4 of the first coaming plate 5 or second are more than the depth of the first slot 101 or the second slot 302, the first coaming plate 5
It is equal to the width of the second chute 402 on the first backplate 3 or the second backplate 2 with the width of the second coaming plate 4.
In use, on the first backplate 3 or the second backplate 2 Side tabs of first tenon 301 be plugged on successively it is adjacent
Formed in first chute 303 of the first backplate 3 or the second backplate 2 and enclose shape, it is then overall to be stitched together with crucible bottom 1, finally
It is bonded by bonding agent.
Knockdown crucible is tiled using above-mentioned, the capacity for effectively solving integral type crucible is advised by graphite substrate material
The problem of limitation of lattice and low stock utilization, each part can splice, not limited by capacity, be carried to greatest extent
The high utilization rate of material, while also improve the production requirement of the industry continous way scale such as current melting, purification；Using this
Connected between each connector of invention using chase mortise structure, it is simple in construction, easy for installation, effectively reduce the life of product
Produce cost.
After the graphite composite material is succeeded in developing, make to be made in new-energy automobile power battery high-temperature electrolysis fused salt process
Combination graphite crucible is provided with more preferable leakage performance, antioxygenic property and erosion-resisting characteristics, solves existing graphite
The easy to leak of crucible, oxidizable, the problem of easily corroding.Succeeding in developing for the invention is that graphite composite material is led in graphite material
The new breakthrough of domain one time, it is the Successful Practice that graphite composite material is applied to high-temperature electrolysis salt stove.
Embodiment described above, simply presently preferred embodiments of the present invention, not limits practical range of the invention,
Therefore the equivalent change or modification that all construction, feature and principles according to described in the scope of the claims of the present invention are done, this hair all should be included in
In bright claim.
Claims (10)
1. a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, it is characterised in that the combination
Graphite crucible, by percentage to the quality, including following component：C 78.3%~84.5%, Ti 0.2%~0.8%, B 1%~3%, Al
2%~6%, Si 1%~3%, Mg 1%~5%, Ca 1%~5%.
2. a kind of new-energy automobile power battery special combination graphite crucible and its manufacturing process, it is characterised in that including as follows
Step：
Step 1：Graphite sealant is prepared, first pours into phenolic resin in agitator, adds graphite sealant while stirring
Auxiliary agent, after being well mixed, according to the viscosity of mixing liquid, add the alcohol that volume fraction is 99% and dilute, quiet put 18 hours is made
Obtain graphite sealant；
Step 2：Single-steeping, graphite substrate material is put into impregnating autoclave, will by -0.03~-0.09MPa vacuum
In graphite sealant liquid suction impregnating autoclave, single-steeping is completed under 0.1MPa~2MPa pressure；
Step 3：Once it is calcined, the graphite material impregnated by graphite sealant is put into vacuum gas protection stove, 700
DEG C~1300 DEG C at a temperature of, through 180~240 hours complete once be calcined；
Step 4：Additive preparation, first graphite antioxidant is poured into the agitator for filling water, add graphite while stirring and resist
Aggressive agent, after being well mixed, stop stirring, it is quiet to put 24 hours obtained additives；
Step 5：Double-steeping, the graphite substrate material after the impregnation of graphite antiseep and high temperature are once calcined is put into
In impregnating autoclave, by -0.03~-0.09MPa vacuum, additive mixed liquor body is sucked in impregnating autoclave, 0.1MPa~
Double-steeping is completed under 2MPa pressure；
Step 6：After baking, the graphite material after being handled by double-steeping is put into vacuum gas protection stove, 800 DEG C~
At a temperature of 1600 DEG C, it is made through the after baking of 120~180 hours.
3. a kind of new-energy automobile power battery special combination graphite crucible according to claim 2 and its manufacturing process,
Characterized in that,
Three kinds of compositions of graphite sealant described in step 1 match as follows, phenolic resin 50%~60% by percentage to the quality,
Graphite sealant auxiliary agent 40%~50%, surplus are the alcohol that volume fraction is 99%；
Two kinds of compositions described in step 4 in additive match as follows by percentage to the quality：Graphite antioxidant 45%~54%,
Chemical composition Al and Si；Graphite anti-erosion agent 45%~54%, Mg and Ca；Surplus is water；
Wherein, in the graphite sealant auxiliary agent, Ti 10.5%~15.5%, B 47.5%~52.5%, C 35.5%~
40.5%；In the graphite antioxidant, Al 60%~73.5%, Si 26.5%~40%；In the graphite anti-erosion agent, Mg
50%~53.5%, Ca 46.5%~50%.
4. a kind of new-energy automobile power battery special combination graphite crucible according to claim 2 and its manufacturing process,
Characterized in that, the impregnating autoclave completes single-steeping technique under preferably -0.06MPa vacuum, 1MPa pressure；It is described
Once it is calcined preferably 1000 DEG C of sintering temperature in vacuum gas protection stove, roasting time preferably 210 hours.
5. a kind of new-energy automobile power battery special combination graphite crucible according to claim 2 and its manufacturing process,
Characterized in that, the impregnating autoclave completes double-steeping technique under preferably -0.06MPa vacuum, 1MPa pressure；It is described
Preferably 1200 DEG C of sintering temperature in after baking vacuum gas protection stove, roasting time preferably 150 hours.
6. a kind of new-energy automobile power battery special combination graphite crucible according to claim 1 and its manufacturing process,
Including crucible body, it is characterised in that the crucible body stacks gradually joggle by Part I, Part II and Part III
Form, the Part I includes being located at undermost crucible bottom（1）, the crucible bottom（1）For the box like structure of upper opening,
Crucible bottom（1）Upper surface two group of first slot is provided with width along its length（101）, first slot
（101）With the second slot（302）Head and the tail overlap successively；The Part II positioned at middle level includes head and the tail overlap joint formation successively and enclosed
First backplate of shape structure（3）With the second backplate（2）, first backplate（3）With the second backplate（2）Width is identical, length not
Same and structure is the same, first backplate（3）Or second backplate（2）Bottom surface be provided with and the first slot（101）It is mutually matched
The first tenon（301）, upper surface be provided with the second slot（302）, first tenon（301）Sidepiece protrudes the first backplate
（3）Or second backplate（2）End face, the first backplate（3）Or second backplate（2）Side vertically offer the first chute（303）,
First backplate（3）Or second backplate（2）Upper first tenon（301）Side tabs be plugged on adjacent first shield successively
Plate（3）Or second backplate（2）The first chute（303）Shape is enclosed in interior formation；The Part III positioned at upper strata includes first successively
Tail overlaps to form the first coaming plate for enclosing shape structure（5）With the second coaming plate（4）, first coaming plate（5）With the second coaming plate（4）Width
It is identical, length is different and structure is the same, the first coaming plate（5）It is laid in the first backplate（3）The second slot（302）Interior, second encloses
Plate（4）It is laid in the second backplate（2）The second slot（302）It is interior, the first coaming plate（5）Or second coaming plate（4）A side end face it is convex
Provided with the second tenon（401）, the first coaming plate（5）Or second coaming plate（4）Side vertically offer the second chute（402）, it is described
First coaming plate（5）Or second coaming plate（4）Upper second tenon（401）The first adjacent coaming plate is plugged on successively（5）Or second coaming plate
（4）The second chute（402）Shape is enclosed in interior formation；First tenon（301）With the first slot（101）Between, the first tenon
（301）With the first chute（303）Between, the second tenon（401）With the second chute（402）Between, the first coaming plate（5）Or second enclose
Plate（4）With the second slot（302）Between be provided with bond layer at the gap that connects.
7. a kind of new-energy automobile power battery special combination graphite crucible according to claim 6 and its manufacturing process,
Characterized in that, the crucible bottom（1）Inside corner be fillet R50 transition；The crucible bottom（1）On the first slot
（101）Through the first slot adjacent thereto along clockwise direction（101）.
8. a kind of new-energy automobile power battery special combination graphite crucible according to claim 6 and its manufacturing process,
Characterized in that, first backplate（3）Length and the second backplate（2）Width sum be equal to crucible bottom（1）Length；Institute
State the first backplate（3）Or second backplate（2）On the first chute（303）With the second slot（302）It is mutually communicated after intersecting vertically；
First backplate（3）Highly it is equal to the second backplate（2）Highly, first coaming plate（5）Highly it is equal to the second coaming plate（4）It is high
Degree.
9. a kind of new-energy automobile power battery special combination graphite crucible according to claim 6 and its manufacturing process,
Characterized in that, the adhesive layer realizes bonding and the sealing to each part of crucible body, and bonded in roasting process
Oxidant layer can be bonded to one with crucible.
10. a kind of new-energy automobile power battery special combination graphite crucible according to claim 6 and its manufacturing process,
Characterized in that, the first slot（101）Depth and width be equal to the second slot（302）Depth and width, first coaming plate
（5）Or second coaming plate（4）Height be more than the first slot（101）Or second slot（302）Depth；First coaming plate（5）With
Two coaming plates（4）Width be equal to the first backplate（3）Or second backplate（2）Upper second chute（402）Width.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483438A (en) * | 2018-05-30 | 2018-09-04 | 中钢集团新型材料（浙江）有限公司 | A kind of roasting steel drum for isostatic pressing formed graphite |
| CN109320268A (en) * | 2018-11-15 | 2019-02-12 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite erosion-resistant material and graphite material and preparation method |
| CN109400212A (en) * | 2018-11-15 | 2019-03-01 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite oxidation-resistant material and graphite material and preparation method |
| CN109440139A (en) * | 2018-11-30 | 2019-03-08 | 中国工程物理研究院材料研究所 | A kind of double cup type ceramic crucibles and preparation method thereof for molten salt electrolysis of metals refining |
| CN109503210A (en) * | 2018-11-15 | 2019-03-22 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite anti-seepage material and graphite material and preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108483438A (en) * | 2018-05-30 | 2018-09-04 | 中钢集团新型材料（浙江）有限公司 | A kind of roasting steel drum for isostatic pressing formed graphite |
| CN108483438B (en) * | 2018-05-30 | 2023-06-09 | 赛迈科先进材料股份有限公司 | Roasting steel drum for isostatic pressing graphite |
| CN109320268A (en) * | 2018-11-15 | 2019-02-12 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite erosion-resistant material and graphite material and preparation method |
| CN109400212A (en) * | 2018-11-15 | 2019-03-01 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite oxidation-resistant material and graphite material and preparation method |
| CN109503210A (en) * | 2018-11-15 | 2019-03-22 | 安阳市佰士特异型石墨制品有限责任公司 | A kind of graphite anti-seepage material and graphite material and preparation method |
| CN109503210B (en) * | 2018-11-15 | 2021-08-03 | 安阳市佰士特异型石墨制品有限责任公司 | Graphite anti-leakage material, graphite material and preparation method |
| CN109400212B (en) * | 2018-11-15 | 2021-08-10 | 安阳市佰士特异型石墨制品有限责任公司 | Graphite oxidation resistant material, graphite material and preparation method |
| CN109440139A (en) * | 2018-11-30 | 2019-03-08 | 中国工程物理研究院材料研究所 | A kind of double cup type ceramic crucibles and preparation method thereof for molten salt electrolysis of metals refining |
| CN109440139B (en) * | 2018-11-30 | 2021-03-30 | 中国工程物理研究院材料研究所 | Double-cup type ceramic crucible for metal molten salt electrolytic refining and preparation method thereof |
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