CN109252054A - The manufacturing method of molten metal degasification tank and its cabinet - Google Patents
The manufacturing method of molten metal degasification tank and its cabinet Download PDFInfo
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- CN109252054A CN109252054A CN201811069985.8A CN201811069985A CN109252054A CN 109252054 A CN109252054 A CN 109252054A CN 201811069985 A CN201811069985 A CN 201811069985A CN 109252054 A CN109252054 A CN 109252054A
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- layer
- molten metal
- insulating layer
- degasification tank
- cabinet
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/064—Obtaining aluminium refining using inert or reactive gases
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
Abstract
The embodiment of the present invention provides the manufacturing method of a kind of molten metal degasification tank and its cabinet, the molten metal degasification tank includes cabinet (30), the accommodating chamber (301) for receiving molten metal is formed in the cabinet (30), the cabinet (30) successively includes high-temperature flame-proof layer (321) from the inside to the outside, reflective insulation layer (322), first insulating layer (323), and fuselage cover layer (325), wherein, the high-temperature flame-proof layer (321) be formed as be more than as heat resisting temperature 800 DEG C refractory material sintering made of integral structure, first insulating layer (323) is filled through by cotton-shaped thermal insulation material, it consolidates.The molten metal of the embodiment of the present invention has good heat insulation effect except liquid case, and experiment results proved, close to room temperature, human body can be contacted directly the temperature at the fuselage cover layer of molten metal degasification tank.
Description
Technical field
The present invention relates to molten metal thermal insulation technical field more particularly to the manufacturers of a kind of molten metal degasification tank and its cabinet
Method.
Background technique
The body structure design of existing molten metal degasification tank is unreasonable, causes cabinet temperature outside very high, on the one hand, to make
It can not observe conditions close to cabinet at operator；On the other hand, cause the intracorporal heat loss of case more serious, waste energy
Source.
Summary of the invention
In view of this, an embodiment of the present invention is intended to provide a kind of molten metal degasification tank that structurally reasonable heat insulation effect is good and its
The manufacturing method of cabinet.
In order to achieve the above objectives, the first aspect of the embodiment of the present invention provides a kind of molten metal degasification tank, including case lid, case
Body, heating device and gas operated device, the accommodating chamber for receiving molten metal is formed in the cabinet, and the accommodating chamber separates
For interconnected the first chamber and the second chamber, the gas operated device and the heating device are fixedly connected with the case lid, institute
The upper surface that case lid is covered in the cabinet is stated, the gas operated device is set in first chamber, the heating device setting
In second chamber, the cabinet from the inside to the outside successively include high-temperature flame-proof layer, reflective insulation layer, the first insulating layer and
Fuselage cover layer, wherein the high-temperature flame-proof layer be formed as be more than as heat resisting temperature 800 DEG C refractory material sintering made of one
Body structure, first insulating layer are filled through by cotton-shaped thermal insulation material, are consolidated.
Further, the reflective insulation layer is for aluminium foil or coated on the heat insulating coat on the outside of the high-temperature flame-proof layer.
Further, the high-temperature flame-proof layer with a thickness of 70mm-140mm, first insulating layer with a thickness of
220mm-240mm。
Further, the cabinet includes the second heat preservation between first insulating layer and the fuselage cover layer
Layer, second insulating layer are formed as plate structure, and first insulating layer is filled in the reflective insulation layer and described second
Between insulating layer.
Further, the material of first insulating layer is cotton-shaped alumina silicate fibre, and second insulating layer is plate
Alumina silicate fibre.
Further, the high-temperature flame-proof layer, the reflective insulation layer, second insulating layer and the fuselage cover
The top of layer flushes, and the height of second insulating layer is less than the height of the high-temperature flame-proof layer；The molten metal degasification luggage
Heat preservation envelope splenium of the moulding by casting at the top of first insulating layer is included, the heat preservation envelope splenium is located in the high-temperature flame-proof layer
Between the reflective insulation layer, the top of the heat preservation envelope splenium is concordant with the top of the high-temperature flame-proof layer.
Further, it is formed with sealed groove at the top of the heat preservation envelope splenium, the molten metal degasification tank includes sealing
Circle, the sealing ring are embedded in the sealed groove, are connected on the sealing ring on the inside of the case lid.
Further, the case lid includes lid main body and the flame retardant coating made of refractory material, the lid main body
Edge is protruded towards cabinet to form flange, and the flame retardant coating is located at the inside of the flange and is bonded with the lid main body,
The sealing ring includes the first sealing ring and the second sealing ring, and the sealed groove is recessed including the first groove and positioned at described first
The second groove on the inside of slot, first sealing ring are located in first groove, and the bottom surface of the flange is connected to described
On first sealing ring；Second sealing ring is located in second groove, and the bottom surface of the flame retardant coating is connected to described
On two sealing rings.
Further, the side wall of the accommodating chamber is formed as inclined wall of the lower part to contract, the bottom wall of the accommodating chamber
Be formed as indent smooth arc-shaped surface structure, and the intersection of the bottom wall and the side wall is smooth transition；In the indent light
It is formed with channel of skimming at sliding globoidal structure, the skimming gate being connected to the channel of skimming is formed on the side wall.
Further, the bottom surface in the channel of skimming and the center minimum point of the indent smooth arc-shaped surface structure are tangent.
The second aspect of the embodiment of the present invention provides a kind of manufacturing method of molten metal degasification box body, the manufacturing method
Include the following steps:
S1: assembling forms fuselage cover layer；
S2: sintering forms high-temperature flame-proof layer after the refractory material base that heat resisting temperature is more than 800 DEG C is molded shape, the high temperature
The inside of flame retardant coating is formed as the accommodating chamber for containing molten metal；
S3: by reflective insulation layer apposition in the outer surface of the high-temperature flame-proof layer；
S4: cotton-shaped thermal insulation material is placed in the bottom that the first insulating layer is formed on the bottom surface of the fuselage cover layer
Portion；
S5: the high-temperature flame-proof layer of apposition reflective insulation layer is placed in fuselage cover layer, and is supported in described first
On the bottom of insulating layer；
S6: cotton-shaped heat insulating material filling is charged in the gap between reflective insulation layer and fuselage cover layer, is formed after tamping
The side wall of first insulating layer.
Further, before step S 4, the manufacturing method further include:
S40: the inside that the second insulating layer of plate is close to fuselage cover layer respectively is placed.
Further, after step S6, the manufacturing method further include:
S7: thermal insulation material is fabricated to after slurry be cast in the top of the first insulating layer with formed heat preservation envelope splenium, it is described
The top of heat preservation envelope splenium and high-temperature flame-proof layer, the reflective insulation layer, second insulating layer and the fuselage cover layer
Top flush.
The molten metal of the embodiment of the present invention has good heat insulation effect except liquid case, and experiment results proved is removed in molten metal
Close to room temperature, human body can be contacted directly temperature at the fuselage cover layer of gas tank.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the molten metal degasification tank of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of molten metal degasification tank shown in FIG. 1；
Fig. 3 is the cross-sectional view in the direction A-A along Fig. 2；And
Fig. 4 is the partial enlargement diagram in Fig. 2 at B.
Description of symbols
10, case lid 11, lid main body 111, flange 12, flame retardant coating
21, gas operated device 22, heating device 30, cabinet 301, accommodating chamber
301a, the first chamber 301b, the second chamber 3011, bottom wall 302, channel of skimming
303, skimming gate 304, inlet 305, liquid outlet 31, partition
321, high-temperature flame-proof layer 322, reflective insulation layer 323, the first insulating layer 324, the second insulating layer
325, fuselage cover layer 33, heat preservation envelope splenium 331, the first groove 332, the second groove
341, the first sealing ring 342, the second sealing ring
Specific embodiment
The first aspect of the embodiment of the present invention provides a kind of molten metal degasification tank, and in the present embodiment, which be can be
Molten aluminum, which can be molten aluminum degasification tank, for removing the hydrogen in molten aluminum.It is understood that the metal
Liquid is also possible to other kinds of molten metal.
Referring to Fig. 1, molten metal degasification tank include case lid 10, cabinet 30, heating device 22, partition 31 (referring to Fig. 2) with
And gas operated device 21, referring to Fig. 2, being formed with the accommodating chamber 301 for receiving molten metal in cabinet 30, that is to say, that the appearance
Chamber 301 of receiving carries out melt processed for receiving molten metal liquid, rather than to metal.Feed liquor is formed on cabinet 30
Mouth 304 and liquid outlet 305, molten metal enter in accommodating chamber 301 from inlet 304, then accommodating chamber 301 is discharged through liquid outlet 305.
Partition 31 is located in cabinet 30, and accommodating chamber 301 is divided into interconnected the first chamber 301a and the second chamber 301b, inlet
304 are connected to the first chamber 301a, and liquid outlet 305 is connected to the second chamber 301b；Wherein, gas operated device 21 is located at the first chamber 301a
In, for by inert gas or other be used to remove hydrogen gases import molten metal in, using bubble swim principle remove
Hydrogen in molten metal.Heating device 22 is used to provide heat appropriate for molten metal, prevents molten metal from tying in accommodating chamber 301
It is brilliant or partially solidified, guarantee that molten metal is in the preferable liquid of mobility always.
Referring to Fig. 4, cabinet 30 successively includes high-temperature flame-proof layer 321, the heat preservation of reflective insulation layer 322, first from the inside to the outside
Layer the 323, second insulating layer 324 and fuselage cover layer 325, wherein high-temperature flame-proof layer 321 be formed as be more than by heat resisting temperature
Integral structure made of 800 DEG C of refractory material sintering, for example, using the refractory material of RFTC SPECIAL AL 76A series,
That is, high-temperature flame-proof layer 321 has high temperature resistant refractory properties.High-temperature flame-proof layer 321, which encloses, is set as accommodating chamber 301, this implementation
In example, the side wall of accommodating chamber 301 is formed as inclined wall of the lower part to contract, in this way, being conducive to divide in molten aluminum except hydrogen
More evenly, dehydrogenation effect is more preferable for cloth.When needing to clear up the molten aluminum in cabinet 30, need to be allowed to dry the aluminium in cabinet 30
Liquid, for this purpose, please referring to Fig. 2 and Fig. 3, the bottom wall 3011 of accommodating chamber 301 is formed as indent smooth arc-shaped surface structure, i.e. accommodating chamber 301
Bottom wall 3011 be intermediate globoidal structure low, surrounding is high, the bottom wall 3011 of accommodating chamber 301 and the intersection of side wall are formed as flat
It slips over and crosses, avoid the formation of horn structure.Further, channel 302 of skimming, cabinet 30 are formed at indent smooth arc-shaped surface structure
Side wall on be formed with the skimming gate 303 being connected to channel 302 of skimming.When molten metal degasification tank works normally, such as Fig. 2 institute
Show, blocks skimming gate 303；When needing to clear up the molten aluminum in cabinet 30, molten aluminum passes through the channel 302, skimming gate of skimming
303 discharge cabinets 30, the structure of the accommodating chamber 301 of the present embodiment allow molten aluminum to discharge completely, accommodating chamber 301
Interior no residual molten aluminum.
Reflective insulation layer 322 is formed between the outside of high-temperature flame-proof layer 321 and the inside of the first insulating layer 323, reflection
Thermal insulation layer 322 is used to carry out reflective insulation to the temperature of high-temperature flame-proof layer 321, reduces and is kept the temperature from high-temperature flame-proof layer 321 to first
The heat of 323 transmitting of layer, promotes the heat insulation effect of high-temperature flame-proof layer 321.The material of reflective insulation layer 322 is unlimited, can be aluminium
Foil, or the heat insulating coat coated on 321 outside of high-temperature flame-proof layer.
First insulating layer 323 is filled through by cotton-shaped thermal insulation material, is consolidated, that is to say, in reflective insulation layer 322 and machine
In gap between body outer shell 325, cotton-shaped thermal insulation material can be filled, forms first insulating layer 323 through tamping, in this way,
Any one corner that can make cotton-shaped filled thermal insulation materials gap, is not influenced by void shape, can be in reflective insulation
One layer of uniform, not dead angle first insulating layer 323 is formed between layer 322 and fuselage cover layer 325, significantly reduces system
Make the difficulty of technique.The material of first insulating layer 323 can be cotton-shaped alumina silicate fibre.
Molten metal degasification tank in the design process, needs to consider the difficulty of manufacturing process and the influence to molten metal ingredient.
The cabinet of molten metal degasification tank is different from metal melting furnaces, and the general volume of metal melting furnaces is larger, and reguline metal is in metal
After melting in melting furnace, it is subsequent along with deslagging process to remove impurity, therefore, the heat preservation multi-purpose greatly of the furnace lining of metal melting furnaces
It is brick at, coat antiseepage antireflective coating layer in the inner surface of insulating brick, but the structure is in use, due to antiseepage antireflective coating layer with
The coefficient of expansion of insulating brick is different, and impermeable layer is easy to peel off, and exfoliation layer is caused to enter in molten metal, change molten metal at
Point, impurity is introduced, but also molten metal enters inside insulating brick, insulating brick and then failure.And the general body of molten metal degasification tank
Product it is smaller, in molten metal it is subsequent be directly prepared into metalwork finished product, molten metal degasification tank needs strict control self structure band
The impurity come avoids the ingredient for influencing molten metal.The molten metal degasification tank of the embodiment of the present invention passes through height made of one sintering
Warm flame retardant coating 321 and molten metal contacts, it is not in the phenomenon that surface layer falls off that the coefficient of expansion of high-temperature flame-proof layer 321 is consistent,
Impurity would not be introduced；Meanwhile reflective insulation is carried out using reflective insulation layer 322, so that most of heat concentrates high-temperature flame-proof
Within layer 321, the heat insulation and preservation effect of molten metal degasification tank is effectively promoted；Furthermore pass through the first insulating layer 323, Ke Yiwu
Gap is filled to dead angle, further promotes the heat insulation effect of molten metal degasification tank.Pass through above structure, the gold of the embodiment of the present invention
Belong to liquid except liquid case has good heat insulation effect, experiment results proved, the temperature at the fuselage cover layer 325 of molten metal degasification tank
Degree is essentially room temperature, and human body can be contacted directly.
The plate-like structure of second insulating layer 324, such as can be the alumina silicate fibre of plate, i.e. 323 He of the first insulating layer
The material of second insulating layer 324 selects same material, and only the shape of the two has difference.Second insulating layer 324 uses
The heat preservation material of the plate structure of regular shape, is attached at the inner wall of fuselage cover layer 325, and the first insulating layer 323 can be by second
The waste material etc. of insulating layer 324 in an assembling process, which is torn up, to be formed cotton-shaped, and is filled into reflective insulation layer 322 and the second insulating layer
In gap between 324, in this way, being not only able to satisfy heat preservation demand, but also waste material, leftover pieces can be made full use of, be beneficial to energy conservation consumption reduction,
Reduce production cost.
Since the first insulating layer 323 is by cotton-shaped filled thermal insulation materials, consolidates, the top of the first insulating layer 323
Portion needs sealing device and is sealed to it, to prevent cotton-shaped thermal insulation material from shedding into ambient enviroment.For this purpose, of the invention
In embodiment, referring to Fig. 2, cabinet 30 includes moulding by casting in the heat preservation envelope splenium 33 at 323 top of the first insulating layer, that is,
Say, heat preservation envelope splenium 33 is closely knit structure, specifically, heat preservation envelope splenium 33 can be it is agitated at mud by thermal insulation material,
It is cast at the top of the first insulating layer 323 again and forms compact structure, the cotton-shaped thermal insulation material of the first insulating layer 323 of sealing can be reached
Effect, and insulation effect can be played.
Further, above-mentioned high-temperature flame-proof layer 321 with a thickness of 70mm-140mm, for example, 70mm, 80mm, 90mm,
100mm, 110mm, 120mm, 130mm, 140mm etc., to guarantee the structural strength and heat resistance of accommodating chamber 301；Described first
Insulating layer with a thickness of 220mm-240mm, for example, 220mm, 230mm, 240mm etc., the thickness of high-temperature flame-proof layer 321 and first
Insulating layer 323 can further strengthen heat insulation effect, again can reduction material to greatest extent so that material utilization amount and heat preservation effect
Fruit reaches best cost performance.
It is understood that the thickness of the fuselage cover layer 325 refers to the plate thickness of its wall body, without including
Local structure thicker.
With continued reference to Fig. 2, case lid 10 includes lid main body 11 and the flame retardant coating 12 positioned at 11 inside of lid main body, fire resisting
Integral structure made of layer 12 is sintered as the refractory material that heat resisting temperature is more than 800 DEG C, specifically, the fire proofed wood of the flame retardant coating 12
Material and moulding process are similar to the high-temperature flame-proof layer 321.Protruded towards cabinet 30 convex to be formed in the edge of lid main body 11
Edge 111, flame retardant coating 12 are located at 111 inside of flange and fit in lid main body 11, so that when lid is fastened on cabinet 30, by
Flame retardant coating 12 is covered in the top of accommodating chamber 301.
When molten metal degasification tank works normally, case lid 10 is fastened on cabinet 30, should be use up between cabinet 30 and case lid 10
Amount reduces heat and leaks, and reduces energy loss, for this purpose, the top of heat preservation envelope splenium 33 is formed with sealed groove in the present embodiment,
Sealing ring is embedded in sealed groove, the inside of the case lid 10 is connected on sealing ring.Specifically, referring to Fig. 2, sealing ring
Including the first sealing ring 341 and the second sealing ring 342, the quantity of sealed groove is two, respectively the first groove 331 and second
Groove 332, the first groove 331 are located at the outside of the second groove 332, and the first sealing ring 341 is embedded in the first groove 331, the
Two sealing rings 342 are embedded in the second groove 332, and the bottom surface of flange 111 is connected on the first sealing ring 341, flame retardant coating 12
Bottom surface be connected on the second sealing ring 342, that is to say, that distinguished by the first sealing ring 341 and the second sealing ring 342 close
Flame retardant coating 12 and flange 111 are sealed, can so enhance leakproofness, so that the heat insulation effect in accommodating chamber 301 is more preferable.
The second aspect of the embodiment of the present invention provides a kind of manufacturing method of molten metal degasification box body, the manufacturing method packet
Include following steps:
S1: assembling forms fuselage cover layer 325；Wherein, fuselage cover layer 325 is the appearance steel frame of cabinet 30, case
The chamfered shape of body 30 is determined by the fuselage cover layer 325.
S2: sintering forms high-temperature flame-proof layer 321 after the refractory material base that heat resisting temperature is more than 800 DEG C is molded shape；It should
High-temperature flame-proof layer 321 has certain thickness, and the inside of high-temperature flame-proof layer 321 is formed as accommodating chamber 301, which uses
In containing molten aluminum, surface needs smooth treatment.Wherein, base molding shape, which refers to be molded with a mold, is made semi-finished blank.
S3: by 322 apposition of reflective insulation layer in the outer surface of high-temperature flame-proof layer 321, wherein reflective insulation layer 322
It is the laminate structures such as aluminium foil, is also possible to the outer surface that coating is coated on high-temperature flame-proof layer 321.
S4: cotton-shaped thermal insulation material is placed in the bottom that the first insulating layer 323 is formed on the bottom surface of fuselage cover layer 325
Portion forms support.
S5: the high-temperature flame-proof layer 321 of apposition reflective insulation layer 322 is placed in fuselage cover layer 325, and is supported in
On the bottom of first insulating layer 323.
S6: cotton-shaped heat insulating material filling is charged in the gap between reflective insulation layer 322 and fuselage cover layer 325, tamping
The side wall of the first insulating layer 323 is formed afterwards.
Further, before step S 4, further includes:
S40: the inner wall that the second insulating layer 324 of plate is close to fuselage cover layer 325 respectively is placed.
Further, after step S6, further includes:
Thermal insulation material: being fabricated to the top for being cast in the first insulating layer 323 after slurry to form heat preservation and seals splenium 33 by S7,
The top of heat preservation envelope splenium 33 and high-temperature flame-proof layer 321, reflective insulation layer 322, the second insulating layer 324 and fuselage cover layer
Top flushes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (13)
1. molten metal degasification tank, including case lid (10), cabinet (30), heating device (22) and gas operated device (21), the case
The accommodating chamber (301) for receiving molten metal is formed in body (30), the accommodating chamber (301) is divided into interconnected first
Chamber (301a) and the second chamber (301b), the gas operated device (21) and the heating device (22) and the case lid (10) are fixed
Connection, the case lid (10) are covered in the upper surface of the cabinet (30), and the gas operated device (21) is set to first chamber
In (301a), the heating device (22) is set in second chamber (301b), which is characterized in that the cabinet (30) is from interior
To outside successively including high-temperature flame-proof layer (321), reflective insulation layer (322), the first insulating layer (323) and fuselage cover layer
(325), wherein the high-temperature flame-proof layer (321) be formed as be more than as heat resisting temperature 800 DEG C refractory material sintering made of one
Body structure, first insulating layer (323) are filled through by cotton-shaped thermal insulation material, are consolidated.
2. molten metal degasification tank according to claim 1, which is characterized in that the reflective insulation layer (322) be aluminium foil or
Coated on the heat insulating coat on the outside of the high-temperature flame-proof layer (321).
3. molten metal degasification tank according to claim 1, which is characterized in that the high-temperature flame-proof layer with a thickness of 70mm-
140mm, first insulating layer with a thickness of 220mm-240mm.
4. molten metal degasification tank according to claim 1, which is characterized in that the cabinet (30) includes being located at described first
The second insulating layer (324) between insulating layer (323) and the fuselage cover layer (325), second insulating layer (324) are formed
For plate structure, first insulating layer (323) is filled in the reflective insulation layer (322) and second insulating layer (324)
Between.
5. molten metal degasification tank according to claim 4, which is characterized in that the material of first insulating layer (323) is
Cotton-shaped alumina silicate fibre, second insulating layer (324) are the alumina silicate fibre of plate.
6. molten metal degasification tank according to claim 4, which is characterized in that the high-temperature flame-proof layer (321), the reflection
It is flushed at the top of thermal insulation layer (322), second insulating layer (324) and the fuselage cover layer (325), second heat preservation
The height of layer (324) is less than the height of the high-temperature flame-proof layer (321)；The molten metal degasification tank includes moulding by casting in described
Splenium (33) are sealed in heat preservation at the top of first insulating layer (323), and heat preservation envelope splenium (33) is located in the high-temperature flame-proof layer
(321) between the reflective insulation layer (322), the top of heat preservation envelope splenium (33) and the high-temperature flame-proof layer (321)
Top it is concordant.
7. molten metal degasification tank according to claim 6, which is characterized in that the top of heat preservation envelope splenium (33) is formed
There is sealed groove, the molten metal degasification tank includes sealing ring, and the sealing ring is embedded in the sealed groove, the case lid
(10) it is connected on the inside of on the sealing ring.
8. molten metal degasification tank according to claim 7, which is characterized in that the case lid (10) includes lid main body (11)
It protrudes with the edge of the flame retardant coating made of refractory material (12), the lid main body (11) towards cabinet (30) to form flange
(111), the flame retardant coating (12) is located at the inside of the flange (111) and is bonded with the lid main body (11), the sealing
Circle includes the first sealing ring (341) and the second sealing ring (342), and the sealed groove is including the first groove (331) and is located at institute
The second groove (332) on the inside of the first groove (332) is stated, first sealing ring (341) is located at first groove (331)
Interior, the bottom surface of the flange (111) is connected on first sealing ring (341)；Second sealing ring (342) is located at institute
It states in the second groove (332), the bottom surface of the flame retardant coating (12) is connected on second sealing ring (342).
9. molten metal degasification tank according to claim 1, which is characterized in that the side wall of the accommodating chamber (301) is formed as
To the inclined wall of contract, the bottom wall (3011) of the accommodating chamber (301) is formed as indent smooth arc-shaped surface structure for lower part, and described
The intersection of bottom wall (3011) and the side wall is smooth transition；Be formed at the indent smooth arc-shaped surface structure skim it is logical
Road (302) is formed with the skimming gate (303) being connected to the channel of skimming (302) on the side wall.
10. molten metal degasification tank according to claim 9, which is characterized in that the bottom surface of the channel of skimming (302) with
The center minimum point of the indent smooth arc-shaped surface structure is tangent.
11. a kind of manufacturing method of molten metal degasification box body, which is characterized in that the manufacturing method includes the following steps:
S1: assembling forms fuselage cover layer (325)；
S2: sintering forms high-temperature flame-proof layer (321), the height after the refractory material base that heat resisting temperature is more than 800 DEG C is molded shape
The inside of warm flame retardant coating (321) is formed as the accommodating chamber (301) for containing molten metal；
S3: by reflective insulation layer (322) apposition in the outer surface of the high-temperature flame-proof layer (321)；
S4: cotton-shaped thermal insulation material is placed on the bottom surface of the fuselage cover layer (325) to form the first insulating layer (323)
Bottom；
S5: the high-temperature flame-proof layer (321) of apposition reflective insulation layer (322) is placed in fuselage cover layer (325), and is supported
In on the bottom of first insulating layer (323)；
S6: cotton-shaped heat insulating material filling is charged in the gap between reflective insulation layer (322) and fuselage cover layer (325), tamping
The side wall of the first insulating layer (323) is formed afterwards.
12. manufacturing method according to claim 11, which is characterized in that before step S 4, the manufacturing method is also wrapped
It includes:
S40: it places the inside that the second insulating layer (324) of plate is close to fuselage cover layer (325) respectively.
13. manufacturing method according to claim 11, which is characterized in that after step S6, the manufacturing method is also wrapped
It includes:
Thermal insulation material: being fabricated to the top for being cast in the first insulating layer (323) after slurry to form heat preservation and seals splenium (33) by S7,
The top of heat preservation envelope splenium (33) and high-temperature flame-proof layer (321), the reflective insulation layer (322), second insulating layer
(324) and at the top of the fuselage cover layer (325) are flushed.
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| CN201811069985.8A CN109252054A (en) | 2018-09-13 | 2018-09-13 | The manufacturing method of molten metal degasification tank and its cabinet |
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Application publication date: 20190122 |