CN109434076A - A kind of aluminum alloy low-pressure casting anti-gas-leak heat preservation non-return aluminium titanates stalk - Google Patents
A kind of aluminum alloy low-pressure casting anti-gas-leak heat preservation non-return aluminium titanates stalk Download PDFInfo
- Publication number
- CN109434076A CN109434076A CN201811567840.0A CN201811567840A CN109434076A CN 109434076 A CN109434076 A CN 109434076A CN 201811567840 A CN201811567840 A CN 201811567840A CN 109434076 A CN109434076 A CN 109434076A
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- CN
- China
- Prior art keywords
- groove
- return
- aluminium titanates
- metatitanic acid
- stalk
- 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.)
- Granted
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 149
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 79
- 239000004411 aluminium Substances 0.000 title claims abstract description 69
- 238000005266 casting Methods 0.000 title claims abstract description 43
- 238000004321 preservation Methods 0.000 title description 6
- 239000002253 acid Substances 0.000 claims abstract description 74
- 210000002421 cell wall Anatomy 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 239000002184 metal Substances 0.000 claims description 28
- 239000011148 porous material Substances 0.000 claims description 13
- 238000005219 brazing Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000007423 decrease Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 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
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/08—Controlling, supervising, e.g. for safety reasons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of aluminum alloy low-pressure casting anti-gas-leaks to keep the temperature non-return aluminium titanates stalk, the top of metatitanic acid aluminum pipe is coaxially fixed with mounting disc, the bottom end of metatitanic acid aluminum pipe is coaxially fixed with aluminium titanates filter tip disk, groove is coaxially provided at the top of aluminium titanates filter tip disk, the cell wall of groove is equipped with side opening, the slot bottom of groove is equipped with bottom outlet, groove is connected to by side opening and bottom outlet with the outside of aluminium titanates filter tip disk respectively, matched non-return piece is equipped in groove, non-return piece is up and down along groove, non-return piece is equipped with through-hole, and through-hole vertically invests the projection of groove slot bottom and bottom outlet is staggered.Known to from the above, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, molten aluminium alloy enters metatitanic acid aluminum pipe during ascending into stalk, through the bottom outlet of groove and the through-hole of non-return piece, plays the role of skimming, filtering molten aluminium alloy；It can also enable aluminum alloy to melt and steadily enter metatitanic acid aluminum pipe, improve the quality of aluminum alloy low-pressure casting product.
Description
Technical field
The present invention relates to a kind of stalk technical fields of aluminum alloy low-pressure casting, and in particular to a kind of aluminium alloy low pressure casting
It makes and keeps the temperature non-return aluminium titanates stalk with anti-gas-leak.
Background technique
Currently, riser tube for aluminum alloy low-pressure casting generally uses ferrous material, at high temperature, ferrous material is easy and aluminium
Liquid reaction causes molten aluminum to increase iron.Ceramic material or carbofrax material can also be used in aluminum alloy low-pressure casting stalk, but in high temperature
Under casting pressure effect, ceramic lift tube is easy to appear gas leak phenomenon, and ceramic material is easy to send out with molten aluminum at high temperature
Biochemical reaction, ceramic lift tube service life are very short.Carbofrax material stalk is easy to produce under heating, cooling repeated action
Gas leak phenomenon occurs for raw crackle, causes type chamber inner inflatable, and molten metal can not be full of type chamber, product quality is caused to decline.Rise liquid
In pipe use process, since low pressure casting die lower die temperature is lower, heat dissipation causes on stalk in liquid metal uphill process
Portion's liquid metal temperature is lower, is easy to appear stalk and freezes to death phenomenon.In addition, after the completion of a low pressure casting, in stalk
When molten aluminum decline is back to crucible, being easy impact crucible bottom makes the field trash of crucible bottom suspend, with aluminium when next time is poured
Liquid, which enters mold, influences casting product quality.The above existing stalk there are aiming at the problem that, develop this patent product aluminium alloy
Low pressure casting anti-gas-leak keep the temperature non-return aluminium titanates stalk with solve molten aluminum existing for existing stalk increase iron, gas leakage, freeze to death,
The problems such as crucible inclusion suspends.
Summary of the invention
It is an object of the invention to: it overcomes the deficiencies of the prior art and provide a kind of aluminum alloy low-pressure casting and is protected with anti-gas-leak
Warm non-return aluminium titanates stalk, molten aluminium alloy pass through the bottom outlet and non-return piece of groove during ascending into stalk
Through-hole enter metatitanic acid aluminum pipe, play the role of skimming, filtering molten aluminium alloy；It is steady at the same time it can also enable aluminum alloy to melt
Into in the pore of metatitanic acid aluminum pipe, so that the molten aluminium alloy in the pore of metatitanic acid aluminum pipe is kept laminar condition, it is molten to reduce aluminium alloy
The turbulence level of liquid, to improve the quality of aluminum alloy low-pressure casting product；Pass through the side opening of groove, it is therefore prevented that aluminium alloy is molten
Liquid directly lower into crucible kinetic energy it is excessive and to crucible bottom generate impact, cause the impurity of crucible bottom to float, in turn
It avoids molten aluminium alloy quality from declining and influences the product quality that low pressure casting next time produces；Aluminium titanates filter tip disk and metatitanic acid
Using threaded connection, when aluminium titanates filter tip disk blocks, cleaning easy to disassemble between aluminum pipe；When aluminium titanates filter tip disk or only
Piece is returned when needing replacing, is replaced with can be convenient；Metatitanic acid aluminum pipe top is equipped with insulating tube, is evacuated in the cavity of insulating tube,
The heat loss that the molten aluminium alloy in metatitanic acid aluminum pipe can be reduced, plays the role of heat preservation, prevents aluminium alloy in metatitanic acid aluminum pipe
Melt temperature reduces, solidifies and lead to freezing to death for metatitanic acid aluminum pipe；The pore inner wall of metatitanic acid aluminum pipe contacts equal with molten aluminium alloy
For metatitanic acid aluminum pipe, molten aluminium alloy does not contact in stalk in uphill process with ferrous material, it is therefore prevented that molten aluminium alloy increases
Gas leakage hidden danger is also not present in iron；Metal tube is wrapped among metatitanic acid aluminum pipe, and the intensity and carrying energy of entire stalk can be improved
Power；The contact surface between contact surface and insulating tube and mounting disc between the metatitanic acid aluminum pipe and metal tube and insulating tube is equal
Equipped with brazing layer, brazing layer can play sealing function；The solder of brazing layer be 53Ag-39Pd-5Pt-3Ti, solder plasticity compared with
It is good, buffering can be played the role of between metal tube and metatitanic acid aluminum pipe, insulating tube, mounting disc, alleviate stalk use process
Middle heating, it is cooling caused by thermal stress and metatitanic acid aluminum pipe and metal tube, insulating tube, the contact stress between mounting disc；Annular
Spacing between the slot bottom and aluminium titanates filter tip disk of slot is 1 ~ 1.2 times of aluminium titanates tube wall thickness, guarantees aluminium titanates filter tip disk
There are enough bonding strengths between metatitanic acid aluminum pipe.
The technical solution used in the present invention is:
A kind of aluminum alloy low-pressure casting anti-gas-leak heat preservation non-return aluminium titanates stalk, including metatitanic acid aluminum pipe, the metatitanic acid aluminum pipe
Top be coaxially fixed with mounting disc, the bottom end of the metatitanic acid aluminum pipe is coaxially fixed with aluminium titanates filter tip disk, the aluminium titanates filter
Groove is coaxially provided at the top of mouth disk, the cell wall of the groove is equipped with side opening, the slot bottom of the groove is equipped with bottom outlet, the side opening
Groove is connected to respectively with the outside of aluminium titanates filter tip disk with bottom outlet, matched non-return piece, the non-return are equipped in the groove
Piece is up and down along groove, and the non-return piece is equipped with through-hole, and the through-hole vertically invests the projection and bottom outlet mistake of groove slot bottom
It opens.
The present invention is further improved scheme, the cell wall of the groove, corresponding at side opening position respectively along being parallel to titanium
The direction of the sour aluminium filter tip dish axle heart is equipped with guide groove, and the side wall of the non-return piece corresponds to guide groove and is equipped with matched guide card.
The further improvement project of the present invention is that the notch of the guide groove is directed inwardly toward the aluminium titanates filter tip dish axle heart, described
The notch of groove is extended upwardly at the top of guide groove, forms opening；The bottom of the guide groove extends downward into the slot bottom of groove.
The further improvement project of the present invention is that the guide card outer side edges edge is greater than aluminium titanates at a distance from non-return piece axle center
The radius of the pore of pipe.
The further improvement project of the present invention is, on aperture of the side opening towards groove side along the slot bottom with groove it
Between distance be greater than the thickness of non-return piece, and aperture lower edge and the notch of groove the distance between of the side opening towards groove side
Greater than the thickness of non-return piece.
The further improvement project of the present invention is, the slot bottom of aperture lower edge and groove of the side opening towards groove side it
Between distance be more than or equal to non-return piece thickness.
The further improvement project of the present invention is, on aperture of the side opening towards groove side along the notch with groove it
Between distance be more than or equal to non-return piece thickness.
The further improvement project of the present invention, which is that the notch of the groove is also concentric, is equipped with fitting groove, the fitting groove
Slot bottom be connected to groove, the bottom end of the metatitanic acid aluminum pipe is equipped with and the matched boss of fitting groove, the inner side slot of the fitting groove
The lateral wall of wall and boss is respectively equipped with matched screw thread B.
The further improvement project of the present invention is that the slot bottom of the fitting groove is higher than side opening.
The further improvement project of the present invention is that annular groove, the annular groove are coaxially provided at the top of the metatitanic acid aluminum pipe
It is inside fixed with metal tube, is flushed at the top of the top of the metal tube and metatitanic acid aluminum pipe, the intensity of the metal tube is greater than metatitanic acid
Aluminum pipe.
The further improvement project of the present invention is that the outside cell wall of the annular groove is equipped with positioned at the top of metatitanic acid aluminum pipe
Notch, the lateral wall of the metal tube, corresponding to being fixed with insulating tube at gap position, at the top of the lateral wall of the metal tube with
Matched screw thread A is equipped between mounting disc inner wall.
The further improvement project of the present invention is that the insulating tube is hollow tubular structure.
The further improvement project of the present invention is the material of the material of the insulating tube, the material of mounting disc and metal tube
It is steel pipe.
The further improvement project of the present invention is, contact surface between the metatitanic acid aluminum pipe and metal tube and insulating tube, with
And the contact surface between insulating tube and mounting disc is equipped with brazing layer.
The further improvement project of the present invention is that the solder of the brazing layer is 53Ag-39Pd-5Pt-3Ti.
The further improvement project of the present invention is that the spacing between the slot bottom and aluminium titanates filter tip disk of the annular groove is titanium
1 ~ 1.2 times of sour aluminum pipe pipe thickness.
The further improvement project of the present invention is that the material of the non-return piece is graphite.
The further improvement project of the present invention is, the through-hole of the non-return piece is equipped with multiple, and one of through-hole is coaxially set
At the axle center of non-return piece, remaining through-hole is uniformly distributed in around the through-hole at center；The bottom outlet, which respectively corresponds, to be located at
At position between two neighboring through-hole.
The further improvement project of the present invention is the concentric axis set on non-return piece of one of through-hole of the non-return piece
At the heart, and the quantity of guide card is corresponding and the axle center of remaining through-hole respectively corresponds and passes through positioned at guide card for the quantity of remaining through-hole
The symmetry axis in non-return piece axle center.
The beneficial effects of the present invention are:
The first, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, and molten aluminium alloy exists
During ascending into stalk, metatitanic acid aluminum pipe is entered by the bottom outlet of groove and the through-hole of non-return piece, plays skimming, filtering
The effect of molten aluminium alloy；Steadily enter in the pore of metatitanic acid aluminum pipe at the same time it can also enable aluminum alloy to melt, makes metatitanic acid aluminum pipe
Molten aluminium alloy in pore keeps laminar condition, the turbulence level of molten aluminium alloy is reduced, to improve aluminium alloy low pressure
The quality of cast article.
The second, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, passes through groove
Side opening, it is therefore prevented that molten aluminium alloy directly lower into crucible kinetic energy it is excessive and to crucible bottom generate impact, cause earthenware
The impurity of crucible bottom floats, and then avoids the decline of molten aluminium alloy quality and influence the product matter of low pressure casting production next time
Amount.
Third, a kind of aluminum alloy low-pressure casting of the invention anti-gas-leak keep the temperature non-return aluminium titanates stalk, aluminium titanates filter
It uses and is threadedly coupled between mouth disk and metatitanic acid aluminum pipe, when aluminium titanates filter tip disk blocks, cleaning easy to disassemble；Work as aluminium titanates
When filter tip disk or non-return piece need replacing, replace with can be convenient.
4th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk, metatitanic acid aluminum pipe with anti-gas-leak
Top is equipped with insulating tube, is evacuated in the cavity of insulating tube, and the heat that can reduce the molten aluminium alloy in metatitanic acid aluminum pipe dissipates
It loses, plays the role of heat preservation, prevent molten aluminium alloy temperature in metatitanic acid aluminum pipe from reducing, solidifying and lead to freezing to death for metatitanic acid aluminum pipe.
5th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk, metatitanic acid aluminum pipe with anti-gas-leak
Pore inner wall contacts with molten aluminium alloy is metatitanic acid aluminum pipe, molten aluminium alloy in stalk in uphill process not with iron
Material contact, it is therefore prevented that molten aluminium alloy increases iron, and gas leakage hidden danger is also not present.
6th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk, metal tube packet with anti-gas-leak
It is wrapped among metatitanic acid aluminum pipe, the intensity and bearing capacity of entire stalk can be improved.
7th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk, the metatitanic acid with anti-gas-leak
The contact surface between contact surface and insulating tube and mounting disc between aluminum pipe and metal tube and insulating tube is equipped with brazing layer,
Brazing layer can play sealing function.
8th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, brazing layer
Solder is 53Ag-39Pd-5Pt-3Ti, and solder plasticity is preferable, can be between metal tube and metatitanic acid aluminum pipe, insulating tube, mounting disc
Play the role of buffering, alleviate heating in stalk use process, it is cooling caused by thermal stress and metatitanic acid aluminum pipe and metal tube,
Contact stress between insulating tube, mounting disc.
9th, a kind of aluminum alloy low-pressure casting of the invention keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, annular groove
Spacing between slot bottom and aluminium titanates filter tip disk is 1 ~ 1.2 times of aluminium titanates tube wall thickness, guarantees aluminium titanates filter tip disk and titanium
There are enough bonding strengths between sour aluminum pipe.
Detailed description of the invention:
Main view schematic cross-sectional view when Fig. 1 is not used for the application.
Fig. 2 is main view schematic cross-sectional view of the application when carrying out aluminum alloy low-pressure casting.
Fig. 3 is the vertical view enlarged diagram of non-return piece.
Fig. 4 is the vertical view enlarged diagram of aluminium titanates filter tip disk.
Specific embodiment:
In conjunction with Fig. 1 ~ Fig. 4 it is found that the present invention includes metatitanic acid aluminum pipe 1, the top of the metatitanic acid aluminum pipe 1 is coaxially fixed with mounting disc 7,
The bottom end of the metatitanic acid aluminum pipe 1 is coaxially fixed with aluminium titanates filter tip disk 9, and the top of the aluminium titanates filter tip disk 9 is coaxially provided with recessed
Slot 10, the cell wall of the groove 10 is equipped with side opening 12, the slot bottom of the groove 10 is equipped with bottom outlet 13, the side opening 12 and bottom outlet 13
Groove 10 is connected to the outside of aluminium titanates filter tip disk 9 respectively, is equipped with matched non-return piece 11, the non-return in the groove 10
Piece 11 is up and down along groove 10, and the non-return piece 11 is equipped with through-hole 15, and the through-hole 15 vertically invests 10 slot bottom of groove
Projection is staggered with bottom outlet 13.
The cell wall of the groove 10, corresponding at 12 position of side opening respectively along being parallel to the side in 9 axle center of aluminium titanates filter tip disk
To guide groove 20 is equipped with, the side wall of the non-return piece 11 corresponds to guide groove 20 and is equipped with matched guide card 14.
The notch of the guide groove 20 is directed inwardly toward 9 axle center of aluminium titanates filter tip disk, and the top of the guide groove 20 extends upwardly to
The notch of groove 10 forms opening；The bottom of the guide groove 20 extends downward into the slot bottom of groove 10.
Radius of 14 outer side edges of guide card along the pore 2 for being greater than metatitanic acid aluminum pipe 1 at a distance from 11 axle center of non-return piece.
The distance between edge and the slot bottom of groove 10 are greater than non-return piece on the aperture of the side opening 12 towards 10 side of groove
11 thickness, and the distance between notch of aperture lower edge of the side opening 12 towards 10 side of groove and groove 10 is greater than non-return piece
11 thickness.
The distance between slot bottom of aperture lower edge of the side opening 12 towards 10 side of groove and groove 10 is more than or equal to only
Return the thickness of piece 11.
The distance between edge and the notch of groove 10 are more than or equal to only on the aperture of the side opening 12 towards 10 side of groove
Return the thickness of piece 11.
The notch of the groove 10 is also concentric to be equipped with fitting groove 19, and the slot bottom of the fitting groove 19 is connected to groove 10,
The bottom end of the metatitanic acid aluminum pipe 1 be equipped with the matched boss 8 of fitting groove 19, the inside cell wall of the fitting groove 19 and boss 8
Lateral wall is respectively equipped with matched screw thread B17.
The slot bottom of the fitting groove 19 is higher than side opening 12.
The top of the metatitanic acid aluminum pipe 1 is coaxially provided with annular groove 3, and metal tube 4, the gold are fixed in the annular groove 3
The top for belonging to pipe 4 is flushed with the top of metatitanic acid aluminum pipe 1, and the intensity of the metal tube 4 is greater than metatitanic acid aluminum pipe 1.
The outside cell wall of the annular groove 3 is equipped with notch 5, the outside of the metal tube 4 positioned at the top of metatitanic acid aluminum pipe 1
Wall, corresponding to insulating tube 6 is fixed at 5 position of notch, set between 7 inner wall of mounting disc at the top of the lateral wall of the metal tube 4
There is matched screw thread A16.
The insulating tube 6 is hollow tubular structure.
Material, the material of mounting disc 7 and the material of metal tube of the insulating tube 6 are steel pipe.
Between contact surface and insulating tube 6 and mounting disc 7 between the metatitanic acid aluminum pipe 1 and metal tube 4 and insulating tube 6
Contact surface be equipped with brazing layer 18.
The solder of the brazing layer 18 is 53Ag-39Pd-5Pt-3Ti.
Spacing between the slot bottom and aluminium titanates filter tip disk 9 of the annular groove 3 is the 1 ~ 1.2 of 1 pipe thickness of metatitanic acid aluminum pipe
Times.
The material of the non-return piece 11 is graphite.
The through-hole 15 of the non-return piece 11 is equipped with 5, and one of through-hole 15 is same to be located at the axle center of non-return piece 11,
4 through-holes 15 of remaininging are uniformly distributed in around the through-hole 15 at center, and the axle center of remaining 4 through-hole 15 respectively corresponds position
In guide card 14 by the symmetry axis in 11 axle center of non-return piece；The bottom outlet 13 is equipped with 4, respectively corresponds positioned at two neighboring through-hole 15
Between position at.
When the present invention uses, during aluminum alloy low-pressure casting, the insertion of metatitanic acid aluminum pipe 1 is equipped with molten aluminium alloy
Crucible in, apply certain pressure on molten aluminium alloy surface, by molten aluminium alloy indentation metatitanic acid aluminum pipe 1 pore 2 in, by
It is lower than the density of molten aluminium alloy in the density of graphite, non-return piece 11 can float along groove 10, and simultaneously, molten aluminium alloy rises
When through-hole 15 on non-return piece 11, have upward active force to non-return piece 11, make non-return piece 11 be in groove 10 top,
And contact the top surface of non-return piece 11 and the end face of boss 8.
Then since the bottom outlet 13 of 10 bottom of groove and the through-hole 15 of non-return piece 11 are staggered, so molten aluminium alloy exists
By groove 10 bottom outlet 13 and non-return piece 11 through-hole 15 when, can play the role of skimming, filtering molten aluminium alloy；
Steadily enter in the pore 2 of metatitanic acid aluminum pipe 1 at the same time it can also enable aluminum alloy to melt, closes the aluminium in the pore 2 of metatitanic acid aluminum pipe 1
Golden melt keeps laminar condition, the turbulence level of molten aluminium alloy is reduced, to improve the matter of aluminum alloy low-pressure casting product
Amount.
After low pressure casting, the molten aluminium alloy decline in the pore 2 of metatitanic acid aluminum pipe 1 is back in crucible, in aluminium
During alloy molten solution decline reflux, since the active force generated when molten aluminium alloy decline makes non-return piece 11 drop to groove
10 bottom, since the bottom outlet 13 of 10 bottom of groove and the through-hole 15 of non-return piece 11 are staggered, bottom outlet 13 and through-hole 15
Mutually to closing each other.Enabling aluminum alloy to melt can only flow outwardly through the side opening 12 of groove 10, into crucible.It prevents in this way
Molten aluminium alloy directly lower into crucible kinetic energy is excessive and impact is generated to crucible bottom, causes crucible bottom impurity
It floats, and then avoids result in the decline of molten aluminium alloy quality and influence the product quality that low pressure casting next time produces.
Using being threadedly coupled between aluminium titanates filter tip disk 9 and metatitanic acid aluminum pipe 1, when aluminium titanates filter tip disk 9 blocks, just
It is cleared up in disassembly.When aluminium titanates filter tip disk 9 or non-return piece 11 need replacing, replace with can be convenient.
1 top of metatitanic acid aluminum pipe is equipped with insulating tube 6, is evacuated, can be reduced in metatitanic acid aluminum pipe 1 in the cavity of insulating tube 6
Molten aluminium alloy heat loss, play the role of heat preservation, prevent in metatitanic acid aluminum pipe 1 molten aluminium alloy temperature to reduce, solidification
And lead to freezing to death for metatitanic acid aluminum pipe 1.
Claims (10)
1. a kind of aluminum alloy low-pressure casting keeps the temperature non-return aluminium titanates stalk with anti-gas-leak, it is characterised in that: including metatitanic acid aluminum pipe
(1), the top of the metatitanic acid aluminum pipe (1) is coaxially fixed with mounting disc (7), and the bottom end of the metatitanic acid aluminum pipe (1) is coaxially fixed with
Aluminium titanates filter tip disk (9) is coaxially provided with groove (10) at the top of the aluminium titanates filter tip disk (9), the cell wall of the groove (10)
Slot bottom equipped with side opening (12), the groove (10) is equipped with bottom outlet (13), and the side opening (12) and bottom outlet (13) are respectively by groove
(10) it is connected to the outside of aluminium titanates filter tip disk (9), matched non-return piece (11), the non-return piece is equipped in the groove (10)
(11) up and down along groove (10), the non-return piece (11) is equipped with through-hole (15), and the through-hole (15) vertically invests groove
(10) projection of slot bottom is staggered with bottom outlet (13).
2. a kind of aluminum alloy low-pressure casting as described in claim 1 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: the cell wall of the groove (10) corresponds at side opening (12) position respectively along being parallel to aluminium titanates filter tip disk (9) axle center
Direction is equipped with guide groove (20), and the side wall of the non-return piece (11) corresponds to guide groove (20) and is equipped with matched guide card (14).
3. a kind of aluminum alloy low-pressure casting as claimed in claim 2 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: the notch of the guide groove (20) is directed inwardly toward aluminium titanates filter tip disk (9) axle center, upwardly extends at the top of the guide groove (20)
It is open to the notch of groove (10), formation；The bottom of the guide groove (20) extends downward into the slot bottom of groove (10).
4. a kind of aluminum alloy low-pressure casting as claimed in claim 2 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: guide card (14) the outer side edges edge is greater than the half of the pore (2) of metatitanic acid aluminum pipe (1) at a distance from non-return piece (11) axle center
Diameter.
5. a kind of aluminum alloy low-pressure casting as described in claim 1 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: the distance between edge and the slot bottom of groove (10) are greater than non-return on the aperture of the side opening (12) towards groove (10) side
The thickness of piece (11), and the distance between the notch of side opening (12) the aperture lower edge towards groove (10) side and groove (10)
Greater than the thickness of non-return piece (11).
6. a kind of aluminum alloy low-pressure casting as described in claim 1 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: the notch of the groove (10) is also concentric to be equipped with fitting groove (19), the slot bottom of the fitting groove (19) and groove (10)
The bottom end of connection, the metatitanic acid aluminum pipe (1) is equipped with and fitting groove (19) matched boss (8), the inside of the fitting groove (19)
The lateral wall of cell wall and boss (8) is respectively equipped with matched screw thread B(17).
7. a kind of aluminum alloy low-pressure casting as described in claim 1 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
It is: is coaxially provided with annular groove (3) at the top of the metatitanic acid aluminum pipe (1), is fixed with metal tube (4), institute in the annular groove (3)
It states and is flushed at the top of the top and metatitanic acid aluminum pipe (1) of metal tube (4), the intensity of the metal tube (4) is greater than metatitanic acid aluminum pipe (1).
8. a kind of aluminum alloy low-pressure casting as claimed in claim 7 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: the outside cell wall of the annular groove (3), the top for being located at metatitanic acid aluminum pipe (1) are equipped with notch (5), the metal tube (4)
Lateral wall corresponds at notch (5) position and is fixed with insulating tube (6), at the top of the lateral wall of the metal tube (4) and mounting disc
(7) matched screw thread A(16 is equipped between inner wall).
9. a kind of aluminum alloy low-pressure casting as claimed in claim 8 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
It is: contact surface and insulating tube (6) and mounting disc between the metatitanic acid aluminum pipe (1) and metal tube (4) and insulating tube (6)
(7) contact surface between is equipped with brazing layer (18).
10. a kind of aluminum alloy low-pressure casting as claimed in claim 7 keeps the temperature non-return aluminium titanates stalk, feature with anti-gas-leak
Be: spacing between the slot bottom and aluminium titanates filter tip disk (9) of the annular groove (3) be metatitanic acid aluminum pipe (1) pipe thickness 1 ~
1.2 again.
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| CN201811567840.0A CN109434076B (en) | 2018-12-21 | 2018-12-21 | Air leakage prevention heat preservation non-return aluminum titanate lift tube for low-pressure casting of aluminum alloy |
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| CN201811567840.0A CN109434076B (en) | 2018-12-21 | 2018-12-21 | Air leakage prevention heat preservation non-return aluminum titanate lift tube for low-pressure casting of aluminum alloy |
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| CN109434076A true CN109434076A (en) | 2019-03-08 |
| CN109434076B CN109434076B (en) | 2023-12-01 |
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| CN109434076B (en) | 2023-12-01 |
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