CN110405145A - Dispellable mould casting slow cooling sandbox - Google Patents
Dispellable mould casting slow cooling sandbox Download PDFInfo
- Publication number
- CN110405145A CN110405145A CN201910816635.1A CN201910816635A CN110405145A CN 110405145 A CN110405145 A CN 110405145A CN 201910816635 A CN201910816635 A CN 201910816635A CN 110405145 A CN110405145 A CN 110405145A
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- CN
- China
- Prior art keywords
- cabinet
- partition
- heat
- slow cooling
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005266 casting Methods 0.000 title claims abstract description 63
- 238000010583 slow cooling Methods 0.000 title claims abstract description 22
- 244000035744 Hura crepitans Species 0.000 title claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 74
- 239000010410 layer Substances 0.000 claims abstract description 49
- 229920000742 Cotton Polymers 0.000 claims abstract description 36
- 238000004321 preservation Methods 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000011229 interlayer Substances 0.000 claims abstract description 14
- 239000003110 molding sand Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 14
- 235000012489 doughnuts Nutrition 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 238000002309 gasification Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000005457 optimization Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- 238000007596 consolidation process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010114 lost-foam casting Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Abstract
The invention discloses a kind of dispellable mould casting slow cooling sandboxes, cabinet including being in cuboid, cabinet upper opening is simultaneously closed by case lid lid, the partition that the four pieces of head and the tail to match with box house cavity geometry mutually splice is equipped in the cabinet, the bottom of box is equipped with the installation card slot being inserted into for partition along cabinet wall direction, every piece of partition is inserted into corresponding installation card slot, there is gap between partition and cabinet wall, so as to which aspirating chamber is collectively formed before partition and cabinet wall, there are several through-holes in the plate face of partition；One of side of the outside wall surface of cabinet is equipped with exhaust tube, and exhaust tube one end is communicated with aspirating chamber in cabinet, and the other end is connected with negative pressure system；It is equipped with interlayer in partition, is inserted with gauze layer and heat-preservation cotton layer in interlayer, for the gauze layer relative to heat-preservation cotton layer close to cabinet center, heat-preservation cotton layer includes multi-layer heat preserving cotton.Very good solution of the present invention sandbox cooling time too short problem, to guarantee the quality of casting.
Description
Technical field
The present invention relates to casting fields, and in particular to dispellable mould casting slow cooling sandbox.
Background technique
Technology of EPC is that foamed plastic model similar with casting dimension shape bonding is combined into model cluster, is brushed
After applying refractory coating and drying, it is embedded in vibration molding in casting model powder, is poured liquid metals under certain condition, makes model gasification simultaneously
Occupy modal position, the method for casting needed for being formed after solidification is cooling.
It is existing to utilize the molding equipment of lost foam casting, generally cooled down by the way of air-cooled or air-cooled, it is such
Although method ensure that the consecutive solidification of casting, ensure that the quality of casting to a certain extent, but require to delay for some
Cold casting is then not suitable for；Such as most of steel alloys are undergone phase transition due to alloys producing in High-temperature cooling process,
Structural stress changes and casting billet surface and inside is caused to crack, there are also martensitic stain less steel, when be cooled to 200~
At 300 DEG C, due to generating martensitic traoformation, leads to volume expansion, cause structural stress and form the brittleness of slab, and by slow
The cold structural stress and thermal stress that can substantially reduce cooling procedure generation, can prevent the generation of white point, be conducive to subsequent
Machining.
But it is generally kept the temperature by the way of heating in existing slow cooling mode, this can generate huge energy wave in the process
Take, so the sandbox structure used during general lost foam casting is in the device for being used in slow cooling cast casting and uncomfortable
With；Since the cooling of traditional sandbox frame mode casting is too fast, directly applying can be such that a large amount of stomatas of casting generation and waste residue are difficult to
It is smoothly discharged from riser, the problems such as influencing casting quality, therefore how to find and a kind of be able to solve too short slow cooling cooling time
Sandbox is particularly important.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: providing a kind of lost foam casting
With slow cooling sandbox, sandbox very good solution casting cooling time too short problem, thus the quality to guarantee casting.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
Dispellable mould casting slow cooling sandbox, the cabinet including being in cuboid, cabinet upper opening are simultaneously closed, the case by case lid lid
It is equipped with the partition that the four pieces of head and the tail to match with box house cavity geometry mutually splice in vivo, the partition is vertically posted by cabinet
Inner wall, the bottom of box are equipped with the installation card slot being inserted into for partition along cabinet wall direction, and every piece of partition insertion is corresponding
It installs in card slot, there is gap between partition and cabinet wall, so as to aspirating chamber is collectively formed before partition and cabinet wall, every
There are several through-holes, so that aspirating chamber is communicated with box house in the plate face of plate；On one of side of the outside wall surface of cabinet
Equipped with exhaust tube, exhaust tube one end is communicated with aspirating chamber in cabinet, and the other end is connected with negative pressure system；Interlayer is equipped in partition,
It is inserted with gauze layer and heat-preservation cotton layer in interlayer, the gauze layer is relative to heat-preservation cotton layer close to cabinet center, the gauze
The aperture of layer is less than the partial size of molding sand, and heat-preservation cotton layer includes multi-layer heat preserving cotton.
In use process of the invention, first by partition insertion the bottom of box installation card slot install, then again to
Molding sand is filled in cabinet, the gauze layer in partition can prevent molding sand from entering in partition, then place evaporative pattern mold in cabinet
And mold is buried by molding sand, the top of evaporative pattern mold has the sprue gate of iron liquid injection；Then by exhaust tube in negative pressure system
The air between the intracorporal sand grains of case is taken away under the action of system, so that box house is in the state of negative pressure and makes molding sand more
Step up reality, the cast(ing) surface that casting is completed in this way will not generate bubble；Then it casts, negative pressure system is closed when casting, melting casting
Part raw material, and the casting feedstock of melting is injected in cabinet by sprue gate and carries out cast molding, evaporative pattern in evaporative pattern mold
Mold gasification disappears, and case lid is then matched closing lid on cabinet top；This process can generate amount of heat, and heat-preservation cotton sets in partition
It sets to slow down the speed of heat loss in cabinet, since iron liquid can first reach the lower part of mold, then gradually up forms, pass through
The setting of heat-preservation cotton can be further ensured that the cooling sequence of casting, so that casting lower part cooling velocity is slightly faster than top；It is logical
Cross the setting of partition, it is ensured that will not pollute mutually between partition and molding sand, aspirating chamber, it is intracorporal just not have to often replacement case
Molding sand, will not thus generate the waste of resource, and it is not in stomata and rough surface that cast(ing) surface is made by way of slow cooling
The problem of, finally pass through the slow cooling of partition, takes out casting out of cabinet after the completion of casting.
As optimization, the cover wall lower edge has limit card slot to engage the top of partition, is provided in the middle part of case lid
The opening of rectangle, be stamped the internal inner cover for being equipped with lid heat-preservation cotton in opening, and opening inner wall surrounding is equipped with shelves for inner cover
Horizontal ledge, interior cover also are provided with several ventholes communicated with box house.
In this way, by being additionally provided with inner cover on case lid, the limit card slot of case lid can carry out the intracorporal partition of case limiting solid
It is fixed, pass through the installation card slot of case lid and the bottom of box in this way, the upper and lower ends of partition is made to limit fixation；Simultaneously because iron liquid into
Enter after pouring mouth, evaporative pattern mold gasification can generate gas, and the intracorporal heat of case disappears very fast in order to prevent, need inner cover lid
It closes, and it is in order to which the gas of evaporative pattern mold gasification generation in cabinet can continue to arrange that several ventholes is provided at the top of inner cover
Out to the Forming Quality for outside cabinet, avoiding influencing gradually cooling casting.
As optimization, the outer end of the exhaust tube protrudes from box outer surface and forms connection end, and connection end passes through company
Adapter tube is connected with negative pressure system, to carry out negative-pressure adsorption to the molding sand filled in cabinet, the connection end and connecting tube it
Between for buckle-type connect.
In this way, connecting tube and connecting pin when needing makes the intracorporal molding sand of case become more consolidation, through negative pressure system
Buckle-type connection is set as between head, connecting tube faster can be connect completion with connection end by operator, very just
Victory, and the air-tightness of Snap-in joint is strong.
As optimization, sealing ring is additionally provided on the case lid, sealing ring is around cover wall lower edge around setting.
In this way, case lid is because cold by heat expansion in cabinet when sealing ring high resilience and resilience, case lid and cabinet upper end cover close
The influence of contracting and the slight deformation occurred, the self-deformation of cabinet is supplemented by sealing ring self-deformation, is improved it and is used the longevity
Life.
As optimization, the insert port communicated with interlayer is provided at the top of the partition, so that gauze layer and heat-preservation cotton layer are pacified
It fills and replaces, be covered with sealing cover in the insert port.
In this way, due to casting can be generated in casting process a part gas and particle dregs, these particle dregs and
Gas can be mixed in molding sand can in partition gauze layer and heat-preservation cotton layer generate pollution, in this way by the top of partition equipped with
The insert port that interlayer communicates can be convenient the installation and replacement in time of gauze layer and heat-preservation cotton layer, be provided at the top of insert port close
Capping is used to guarantee the leakproofness of partition.
As optimization, the inner surface spacing of the wall box is equipped with several protrusions, the surface phase of the protrusion and partition
It contradicts, so that partition is not susceptible to deform.
In this way, by the inner surface spacing in wall box be equipped with several protrusions, due in cabinet casting in exothermic mistake
Journey can have the function of expansion to molding sand and partition, can both prevent partition opposite after expanded by heating by the way that protrusion is arranged
It is drawn close in cabinet wall direction, partition will not deform displacement, so that slight deformation will not occur for the own form of casting
Its Forming Quality is influenced, also will not influence the air-flow perforation between aspirating chamber.
As optimization, four edges of the bottom of box are equipped with bayonet universal wheel.In this way, facilitating operator's energy
It is enough that cabinet is moved, universal wheel is locked and can be cast when needing to cast, it is easy to operate.
As optimization, the appearance donut of the cabinet is equipped with annular stiff girder.
In this way, the casting due to casting in cabinet can generate amount of heat, easily making, which influences cabinet, occurs part deformation, passes through
Cabinet outer wall surface be arranged stiff girder, the rigidity of cabinet self structure can be improved, thus not vulnerable to expand become
Shape.
In conclusion the beneficial effects of the present invention are: the present invention is by exhaust tube by case under the action of negative pressure system
Air between intracorporal sand grains is taken away, so that box house is in the state of negative pressure and makes molding sand more consolidation, so
The cast(ing) surface that casting can be made to complete will not generate bubble；Heat-preservation cotton is arranged to slow down the speed of heat loss in cabinet in partition
Degree, since iron liquid can arrive first the lower part of mold, then gradually up forms, the setting of heat-preservation cotton can be further ensured that casting
Cooling sequence, so that casting lower part cooling velocity is slightly faster than top；Pass through the setting of partition, it is ensured that partition and molding sand,
It will not be polluted mutually between aspirating chamber, will not thus generate the waste of resource, make the casting be not in by way of slow cooling
The problem of stomata and rough surface.
Detailed description of the invention
In order to keep the purposes, technical schemes and advantages of invention clearer, the present invention is made into one below in conjunction with attached drawing
The detailed description of step, in which:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is explosive view of the invention；
Fig. 3 is the structural schematic diagram of partition in Fig. 1.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
Appended drawing reference in Figure of description includes: cabinet 1, aspirating chamber 2, partition 3, gauze layer 4, heat-preservation cotton layer 5, sealing
Enclose 6, case lid 7, lid heat-preservation cotton 8, inner cover 9, venthole 10, interlayer 11, through-hole 12, exhaust tube 13, stiff girder 14, universal wheel
15。
Dispellable mould casting slow cooling sandbox in present embodiment, as shown in Figure 1, Figure 2 and Figure 3, including in rectangular
The cabinet 1 of body, 1 upper opening of cabinet are simultaneously closed by the lid of case lid 7, are equipped in the cabinet 1 and match with 1 internal cavity shape of cabinet
The partition 3 that mutually splices of four pieces of head and the tail, the partition 3 is vertically posted by 1 inner wall of cabinet, 1 bottom of cabinet be equipped with for every
The installation card slot that plate is inserted into along 1 inner wall direction of cabinet, every piece of partition 3 are inserted into corresponding installation card slot, in partition 3 and cabinet
There is gap between wall, so as to which aspirating chamber 2 is collectively formed before partition 3 and 1 inner wall of cabinet, have in the plate face of partition 3 several
Through-hole 12, so that aspirating chamber 2 is communicated with box house；One of side of the outside wall surface of cabinet is equipped with exhaust tube 13, takes out
13 one end of tracheae is communicated with aspirating chamber 2 in cabinet, and the other end is connected with negative pressure system；Interlayer 11 is equipped in partition 3, in interlayer 11
It is inserted with gauze layer 4 and heat-preservation cotton layer 5, the gauze layer 4 is relative to heat-preservation cotton layer 5 close to cabinet center, the gauze layer 4
Aperture be less than molding sand partial size, heat-preservation cotton layer 5 includes multi-layer heat preserving cotton.
In use process of the invention, the installation card slot that partition 3 is inserted into 1 bottom of cabinet is installed first, then again
Molding sand is filled into cabinet, the gauze layer 4 in partition 3 can prevent molding sand from entering in partition 3, then place evaporative pattern in cabinet
Mold and mold is buried by molding sand, the top of evaporative pattern mold have the sprue gate of iron liquid injection；Then existed by exhaust tube 13
The air between the intracorporal sand grains of case is taken away under the action of negative pressure system, so that being in the state of negative pressure inside cabinet 1 and making
Molding sand more consolidation is obtained, the cast(ing) surface that casting is completed in this way will not generate bubble；Then it casts, negative pressure system closes when casting
It closes, melting casting feedstock, and the casting feedstock of melting is injected in cabinet by sprue gate and is cast into evaporative pattern mold
Type, evaporative pattern mold gasification disappear, and case lid 7 is then matched closing lid on cabinet top；This process can generate amount of heat, partition 3
To slow down the speed of heat loss in cabinet, since iron liquid can first reach the lower part of mold, then gradually middle heat-preservation cotton is arranged
It up forms, the cooling sequence of casting can be further ensured that by the setting of heat-preservation cotton, so that casting lower part cooling velocity
It is slightly faster than top；Pass through the setting of partition 3, it is ensured that will not pollute mutually between partition 3 and molding sand, aspirating chamber 2, just not have to
The often replacement intracorporal molding sand of case, will not thus generate the waste of resource, go out cast(ing) surface will not
The problem of existing stomata and rough surface, finally passes through the slow cooling of partition 3, take out casting out of cabinet after the completion of casting.
In a specific embodiment, the 7 inner wall lower edge of case lid has limit card slot to engage the top of partition 3, case
It is provided with the opening of rectangle in the middle part of lid 7, the internal inner cover 9 for being equipped with lid heat-preservation cotton 8 is stamped in opening, opening inner wall surrounding is equipped with
For the horizontal ledge that inner cover 9 is shelved, several ventholes 10 communicated with box house are also provided on the inner cover 9.
In this way, the limit card slot of case lid 7 can limit the partition 3 in cabinet 1 by being additionally provided with inner cover 9 on case lid 7
Position is fixed, passes through the installation card slot of case lid 7 and the bottom of box in this way, the upper and lower ends of partition 3 is made to limit fixation；Simultaneously because
Iron liquid enters pour mouth after, evaporative pattern mold gasification can generate gas, and the intracorporal heat of case disappears very fast in order to prevent, need by
The lid of inner cover 9 closes, and being provided with several ventholes 10 at the top of inner cover 9 is the gas for evaporative pattern mold gasification generation in cabinet
Physical efficiency is persistently expelled to outside cabinet, avoids the Forming Quality for influencing gradually cooling casting.
In a specific embodiment, the outer end of the exhaust tube 13 protrudes from box outer surface and forms connection end, connection
End is connected by connecting tube with negative pressure system, to carry out negative-pressure adsorption, the connection end to the molding sand filled in cabinet
It is connect between connecting tube for buckle-type.
In this way, connecting tube and connecting pin when needing to make the molding sand in cabinet 1 to become more consolidation, through negative pressure system
Buckle-type connection is set as between head, connecting tube faster can be connect completion with connection end by operator, very just
Victory, and the air-tightness of Snap-in joint is strong.
In a specific embodiment, sealing ring 6 is additionally provided on the case lid, sealing ring 6 is surround around cover wall lower edge
Setting.
In this way, 6 high resilience of sealing ring and resilience, when case lid and cabinet upper end cover close, case lid because in cabinet by heat expansion
The influence of shrinkage and the slight deformation occurred, the self-deformation of cabinet is supplemented by 6 self-deformation of sealing ring, improves its use
Service life.
In a specific embodiment, the top of the partition 3 is provided with the insert port communicated with interlayer 11, for gauze layer 4
It installs and replaces with heat-preservation cotton layer 5, be covered with sealing cover in the insert port.
In this way, due to casting can be generated in casting process a part gas and particle dregs, these particle dregs and
Gas can be mixed in the gauze layer 4 understood in molding sand in partition 3 and heat-preservation cotton layer 5 generates pollution, be set in this way by the top of partition 3
There is the insert port communicated with interlayer 11, can be convenient the installation and replacement in time of gauze layer 4 and heat-preservation cotton layer 5, insert port top
It is provided with the leakproofness that sealing cover is used to guarantee partition 3.
In a specific embodiment, the inner surface spacing of 1 side wall of cabinet is equipped with several protrusions, the protrusion and partition
3 surface is inconsistent, so that partition 3 is not susceptible to deform.
In this way, by the inner surface spacing in wall box be equipped with several protrusions, due in cabinet casting in exothermic mistake
Journey can have the function of expansion to molding sand and partition 3, both partition 3 can have been prevented in the phase after expanded by heating by the way that protrusion is arranged
Cabinet wall direction is drawn close, partition 3 will not deform displacement, so that slight deformation will not occur for the own form of casting
It influences its Forming Quality, also will not influence the air-flow perforation between aspirating chamber 2.
In a specific embodiment, four edges of the bottom of box are equipped with bayonet universal wheel 15.In this way, convenient
Operator can move cabinet, and universal wheel 15 is locked and can be cast when needing to cast, easy to operate.
In a specific embodiment, the appearance donut of the cabinet is equipped with annular stiff girder 14.
In this way, the casting due to casting in cabinet can generate amount of heat, easily making, which influences cabinet, occurs part deformation, passes through
In the stiff girder 14 that the outer wall surface of cabinet is arranged, the rigidity of cabinet self structure can be improved, thus not vulnerable to expanding
Deformation.
In a specific embodiment, be provided with horizontal insulation board above the bottom of cabinet 1, insulation board surrounding push against in every
Gauze layer 4 and heat-preservation cotton layer 5 are inserted in the plate face of plate, in insulation board, the upper base surface of cabinet is also equipped with protrusion, protrusion
It is inconsistent with the lower surface of insulation board.In this way, improving the thermal insulation property of cabinet by being provided with insulation board in the bottom of box.
In the specific implementation process, it is 3~20 layers that the heat-preservation cotton layer 5, which is set as every side,.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from the present invention defined by the appended claims
Spirit and scope.
Claims (8)
1. dispellable mould casting slow cooling sandbox, the cabinet including being in cuboid, cabinet upper opening is simultaneously closed by case lid lid, special
Sign is: the partition that the four pieces of head and the tail to match with box house cavity geometry mutually splice, the partition are equipped in the cabinet
Vertically be posted by cabinet wall, the bottom of box is equipped with the installation card slot being inserted into for partition along cabinet wall direction, every piece every
Plate is inserted into corresponding installation card slot, has gap between partition and cabinet wall, so that before partition and cabinet wall altogether
With aspirating chamber is formed, there are several through-holes in the plate face of partition, so that aspirating chamber is communicated with box house；The outside wall surface of cabinet
One of side is equipped with exhaust tube, and exhaust tube one end is communicated with aspirating chamber in cabinet, and the other end is connected with negative pressure system；Every
It is equipped with interlayer in plate, is inserted with gauze layer and heat-preservation cotton layer in interlayer, the gauze layer is relative to heat-preservation cotton layer close to cabinet
Center, the aperture of the gauze layer are less than the partial size of molding sand, and heat-preservation cotton layer includes multi-layer heat preserving cotton.
2. dispellable mould casting slow cooling sandbox according to claim 1, it is characterised in that: the cover wall lower edge has
Limit card slot is provided with the opening of rectangle to engage the top of partition in the middle part of case lid, the internal lid that is equipped with is stamped in opening and is kept the temperature
The inner cover of cotton, opening inner wall surrounding are equipped with the horizontal ledge shelved for inner cover, and interior cover also is provided in several and cabinet
The venthole that portion communicates.
3. dispellable mould casting slow cooling sandbox according to claim 1, it is characterised in that: protrude the outer end of the exhaust tube
In box outer surface connection end is formed, connection end is connected by connecting tube with negative pressure system, with to filling in cabinet
Molding sand carries out negative-pressure adsorption, connects between the connection end and connecting tube for buckle-type.
4. dispellable mould casting slow cooling sandbox according to claim 2, it is characterised in that: be additionally provided on the case lid close
Seal, sealing ring is around cover wall lower edge around setting.
5. dispellable mould casting slow cooling sandbox according to claim 1, it is characterised in that: be provided at the top of the partition with
The insert port that interlayer communicates is covered with sealing cover in the insert port for gauze layer and the installation of heat-preservation cotton layer and replacement.
6. dispellable mould casting slow cooling sandbox according to claim 1, it is characterised in that: the inner surface of the wall box
Spacing is equipped with several protrusions, and the protrusion is inconsistent with the surface of partition, so that partition is not susceptible to deform.
7. dispellable mould casting slow cooling sandbox according to claim 6, it is characterised in that: four sides of the bottom of box
Bayonet universal wheel is installed at angle.
8. dispellable mould casting slow cooling sandbox according to claim 1, it is characterised in that: the appearance donut of the cabinet is set
There is annular stiff girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816635.1A CN110405145A (en) | 2019-08-30 | 2019-08-30 | Dispellable mould casting slow cooling sandbox |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910816635.1A CN110405145A (en) | 2019-08-30 | 2019-08-30 | Dispellable mould casting slow cooling sandbox |
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| CN110405145A true CN110405145A (en) | 2019-11-05 |
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| CN201910816635.1A Pending CN110405145A (en) | 2019-08-30 | 2019-08-30 | Dispellable mould casting slow cooling sandbox |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947920A (en) * | 2019-12-18 | 2020-04-03 | 芜湖久弘重工股份有限公司 | Sand box for lost foam casting process |
| CN111390115A (en) * | 2020-04-02 | 2020-07-10 | 邯郸慧桥复合材料科技有限公司 | Wear-resistant part shell mold casting method |
| CN114669721A (en) * | 2022-03-18 | 2022-06-28 | 江西亿丰精密铸造有限公司 | Nodular cast iron lost foam sand box |
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| CN110947920A (en) * | 2019-12-18 | 2020-04-03 | 芜湖久弘重工股份有限公司 | Sand box for lost foam casting process |
| CN110947920B (en) * | 2019-12-18 | 2020-11-13 | 芜湖久弘重工股份有限公司 | Sand box for lost foam casting process |
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