CN107377912A - A kind of oil-air lubrication casting system - Google Patents
A kind of oil-air lubrication casting system Download PDFInfo
- Publication number
- CN107377912A CN107377912A CN201710780492.4A CN201710780492A CN107377912A CN 107377912 A CN107377912 A CN 107377912A CN 201710780492 A CN201710780492 A CN 201710780492A CN 107377912 A CN107377912 A CN 107377912A
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- Prior art keywords
- oil
- gas
- crystallizer
- graphite annulus
- pinboard
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- 238000005266 casting Methods 0.000 title claims abstract description 60
- 238000005461 lubrication Methods 0.000 title claims abstract description 23
- 239000010687 lubricating oil Substances 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000002828 fuel tank Substances 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 65
- 229910002804 graphite Inorganic materials 0.000 claims description 63
- 239000010439 graphite Substances 0.000 claims description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000005507 spraying Methods 0.000 claims description 34
- 239000003921 oil Substances 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- 239000004411 aluminium Substances 0.000 claims description 27
- 239000000498 cooling water Substances 0.000 claims description 26
- 238000002425 crystallisation Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 25
- 230000008025 crystallization Effects 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 2
- 238000001914 filtration Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 9
- 238000009749 continuous casting Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000010138 Diastema Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000000475 diastema Anatomy 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect 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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/07—Lubricating the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
Abstract
The embodiment of the invention discloses a kind of oil-air lubrication casting system, including oily device, air register and crystallizer are adjusted, it is described to adjust oily device to be connected with fuel tank, for controlling the flow for the lubricating oil for being passed through crystallizer；The air register includes the gas flow adjusting means being connected with gas supply mechanism; the gas that the gas flow adjusting means are used to gas supply mechanism being passed through is evenly distributed to crystallizer; and the flow of the separately adjustable each crystallizer of energy; enter the flow of crystallizer so as to the lubricating oil and protective gas of stability contorting casting process, improve surface quality of continuous castings.
Description
Technical field
The present invention relates to aluminium bar casting technology field, more particularly to a kind of oil-air lubrication casting system.
Background technology
In the casting of aluminium alloy pole, can crystallizer performance quality directly affect the casting that obtain high quality.By
In the limitation of technical conditions, aluminium bar foundry enterprise is in order to improve the quality on the surface of bar, meeting when using Casting Equipment
The working face oil dripping of crystallizer, or operating personnel smear to reach the purpose of raising surface quality of continuous castings by hand.But this side
Method wastes time and energy, and casts out that the aluminium bar surface come is less smooth, and cooling shell thickness is very big, typically in 2-15mm, easily
Produce waste material.
Publication No. CN203917841 Chinese patent discloses a kind of nearly end form ingot casting semi-continuous casting knot of aluminium alloy
Brilliant device.This crystallizer is provided with independent oil gas distribution ring so that and this crystallizer can automate lubrication in casting process,
Improve the surface quality of casting.But the crystallizer of this structure has following two big major defects：
1st, the diameter of the aluminium liquid passage of crystallizer is essentially identical, and aluminium liquid itself has stronger heat conductivility, in casting process
In easily cooled water take away amount of heat, cause the temperature of aluminum liquid of crystallizer upper end too low, influence crystalline quality.
2nd, lubrication lubricating oil moving into cooling water with aluminium liquid used, pollutes to cooling water, influences ring
Border.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is, there is provided a kind of oil-air lubrication casting system, can stablize and control
The lubricating oil and protective gas of casting process processed enter the flow of crystallizer, improve surface quality of continuous castings.
Technical problem to be solved of the embodiment of the present invention also resides in, there is provided a kind of oil-air lubrication casting system, can be accurate
The temperature change of casting process aluminium liquid is controlled, ensures the aluminium liquid of diverse location in its optimal casting temperature, improves casting quality.
In order to solve the above-mentioned technical problem, the embodiments of the invention provide a kind of oil-air lubrication casting system, including oil is adjusted
Device, air register and crystallizer,
It is described to adjust oily device to be connected with fuel tank, for controlling the flow for the lubricating oil for being passed through crystallizer；
The air register includes the gas flow adjusting means being connected with gas supply mechanism, the gas flow adjusting means
Gas for gas supply mechanism to be passed through is evenly distributed to crystallizer, and the flow of the separately adjustable each crystallizer of energy；
The crystallizer, including crystallizer body, pinboard and graphite annulus, it is logical that the crystallizer body center is provided with crystallization
Road, the crystallization channel top are provided with pinboard, and the graphite annulus is provided with below the pinboard, oil is provided with the graphite annulus
Gas micropore；The pinboard is provided with crystallization mouth, and the lower side edge of the crystallization mouth is provided with downwardly projecting gas storage ring, the gas storage
Ring, pinboard and graphite annulus are in turn connected to form air chamber, and the air chamber is used to prevent aluminium liquid and the handing-over of pinboard and graphite annulus
Place's contact.
As the improvement of such scheme, the gas flow adjusting means include adjusting means body, the adjusting means
Body is provided with main inlet channel, regulating valve, mark pipe and branch outlet passageway；Steel ball, the mark pipe are provided with the mark pipe
Internal diameter be gradually reduced from top to bottom；The mark tube side-by-side is located at the observation intracavitary of adjusting means body, the regulation vertically
Valve is capable of the gas flow of separately adjustable corresponding mark pipe, and the observation chamber surface is covered with transparent shrouding.
As the improvement of such scheme, the both ends for identifying pipe are provided with that ventilation is stifled, and the stifled center of ventilation is provided with passage.
As the improvement of such scheme, the regulating valve includes stepped adjustable valve element, before the adjustable valve element includes
Middle-end and rear end are held, its front end is cone, and middle-end is connected by screw thread with adjusting means body, and adjusting means sheet is stretched out in rear end
Body；The rear end of the adjustable valve element is provided with preloading spring.
As the improvement of such scheme, the air register also include be sequentially connected pressure sensor, cool dryers,
Spinner flowmeter and electrohydraulic pressure control regulating valve, the pressure sensor are used to monitor the pressure for being passed through gas, the cool drying
Device is used to absorb the moisture being passed through in gas, and the spinner flowmeter is used to monitor the total flow for being passed through gas, the automatically controlled pressure
Force regulating valve is used for the pressure for adjusting output gas.
As the improvement of such scheme, described to adjust oily device to include oil dispenser and micro- fixed-quantity injector, the oil is matched somebody with somebody
Device is used to the lubricating oil of fuel tank supply being evenly distributed to micro- fixed-quantity injector, a pair of micro- fixed-quantity injector and crystallizer 1
It should connect, for supplying the lubricating oil of casting for crystallizer.
Be provided with oil pipe and breather pipe as the improvement of such scheme, in the crystallizer body, the breather pipe and lead to
Oil pipe is communicated to the back side of graphite annulus；Gas storage ring, pinboard and the graphite annulus are in turn connected to form air chamber and referred to：Cast
Gas is passed through graphite annulus by Cheng Zhong, the breather pipe, and gas separates out from the front of graphite annulus, described in Action of Gravity Field accumulates in
Gas storage ring, pinboard and graphite annulus are sequentially connected in the space surrounded.
As the improvement of such scheme, the gas storage ring is provided with arc-shaped transition section close to graphite annulus side.
As the improvement of such scheme, the crystallizer body is additionally provided with hole for water spraying, and the hole for water spraying circumferential array is in knot
On brilliant passage, positioned at the lower section of graphite annulus；Totally two rows, the longitudinally spaced preset distance of two row's hole for water sprayings arrange the hole for water spraying, and
And the hole for water spraying is obliquely installed with different angle, the current that two row's hole for water sprayings spray are made to interlock up and down；
The hole for water spraying is connected with cooling-water duct, and the connectivity part of the cooling-water duct and crystallizer outer body is provided with
Screen pack；
Hydroecium is additionally provided with the crystallizer body, the hydroecium is connected with cooling-water duct, before being sprayed for cooling water
Aggregation and buffering.
As the improvement of such scheme, the oil gas micropore is evenly distributed in graphite annulus, makes graphite annular into thermal insulation layer,
The cooling effect of hole for water spraying is limited in the lower section of graphite annulus；Lubricating oil separates out from oil gas micropore, is formed and contained in graphite ring surface
Oil reservoir, lubricating oil are completely burned before following aluminium liquid to leave graphite annulus.
Implement the embodiment of the present invention, have the advantages that：
Oil-air lubrication casting system provided by the invention, including oily device, air register and crystallizer are adjusted, it is described to adjust oil dress
Put and be connected with fuel tank, for controlling the flow for the lubricating oil for being passed through crystallizer；The air register is connected with gas supply mechanism, including
Gas flow adjusting means, the gas that the gas flow adjusting means are used to gas supply mechanism being passed through are evenly distributed to crystallization
Device, and the flow of the separately adjustable each crystallizer of energy, enter knot so as to the lubricating oil and protective gas of stability contorting casting process
The flow of brilliant device, improve surface quality of continuous castings.
Crystallizer provided by the invention, including crystallizer body, pinboard and graphite annulus, the crystallizer body center are set
There is crystallization channel, pinboard is provided with the top of the crystallization channel, the graphite annulus, the pinboard are provided with below the pinboard
Provided with crystallization mouth.Wherein, the diameter for crystallizing mouth is less than the bore of crystallization channel and graphite annulus, and aluminium liquid is separated into two up and down
Point, the aluminium liquid for preventing from crystallizing below mouth is cooled the cooling of water and cools down the aluminium liquid crystallized above mouth, influences crystalline quality.
Crystallizer provided by the invention, the lower side edge of the crystallization mouth are provided with downwardly projecting gas storage ring, the gas storage
Ring, pinboard and graphite annulus are in turn connected to form air chamber, and the air chamber is used to prevent aluminium liquid and the handing-over of pinboard and graphite annulus
Place contacts and the crystallisation by cooling that taken the lead in, and then the metal solid scratch for preventing casting from first being crystallized, and lifts the surface quality of casting.
Crystallizer provided by the invention, the crystallizer body are additionally provided with hole for water spraying, and the hole for water spraying circumferential array is in knot
On brilliant passage, positioned at the lower section of graphite annulus；Totally two rows, the longitudinally spaced preset distance of two row's hole for water sprayings arrange the hole for water spraying, and
And the hole for water spraying is obliquely installed with different angle, the current that two row's hole for water sprayings spray are made to interlock up and down.Cooling water is sprayed on casting
Complementation can be obtained during circumferential surface, is really achieved casting cooling uniformly without dead angle, and impact of the cooling water to cast(ing) surface
Uniformly, prevent that cooling water is excessive to casting local assault and causes casting surface defect.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of oil-air lubrication casting system of the present invention；
Fig. 2 is the structural representation of the gas flow adjusting means of the present invention；
Fig. 3 is Fig. 2 A-A faces sectional view；
Fig. 4 is the structural representation of the crystallizer of the present invention；
Fig. 5 is the structural representation at another visual angle of the crystallizer of the present invention；
Fig. 6 is the sectional view of the crystallizer of the present invention；
Fig. 7 is Fig. 6 A portions enlarged drawing.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.Only this is stated, appearance in the text of the invention or the side such as the up, down, left, right, before and after that will appear from, inside and outside
Position word, only on the basis of the accompanying drawing of the present invention, it is not the specific restriction to the present invention.
As shown in figure 1, the embodiments of the invention provide a kind of oil-air lubrication casting system, including oily device 1 is adjusted, regulating the qi flowing in the channels dress
2 and crystallizer 3 are put,
It is described to adjust oily device 1 to be connected with fuel tank 11, for controlling the flow for the lubricating oil for being passed through crystallizer 3；
The air register 2 includes the gas flow adjusting means 21 being connected with gas supply mechanism, the gas flow regulation
The gas that device 21 is used to gas supply mechanism being passed through is evenly distributed to crystallizer 3, and the stream of the separately adjustable each crystallizer 3 of energy
Amount；
The crystallizer 3 is used to metal bath being cast as casting.
Oil-air lubrication casting system provided by the invention, including adjust oily device 1, air register 2 and crystallizer 3, the tune
Oily device 1 is connected with fuel tank 11, for controlling the flow for the lubricating oil for being passed through crystallizer 3；The air register 2 and gas supply mechanism
Connection, including gas flow adjusting means 21, the gas that the gas flow adjusting means 21 are used to gas supply mechanism being passed through are put down
Be assigned to crystallizer 3, and can separately adjustable each crystallizer 3 flow, so as to stability contorting casting process lubricating oil and
Protective gas enters the flow of crystallizer 3, improves surface quality of continuous castings.
With reference to Fig. 2 and Fig. 3, the gas flow adjusting means 21 include adjusting means body 211, the adjusting means sheet
Body 211 is provided with main inlet channel 212, regulating valve 213, mark pipe 214 and branch outlet passageway 215；It is provided with the mark pipe 214
Steel ball 216, the internal diameter of the mark pipe 214 are gradually reduced from top to bottom；The mark pipe 214 is located at adjusting means vertically side by side
In the observation chamber 217 of body 211, the regulating valve 213 is capable of the gas flow of separately adjustable corresponding mark pipe 214, described
Chamber surface is observed covered with transparent shrouding 218.It is aobvious that operating personnel can easily observe mark pipe 214 by transparent shrouding 218
The gas flow shown.And because the mark pipe 214 is located in the observation chamber 217 of adjusting means body 211 vertically side by side, when certain
When deviation occurs in the flow of individual mark pipe 214, the height of the steel ball 216 in pipe can be different from others, and operating personnel can be with non-
Often intuitively perceive, and highly consistent with other mark pipes 214, simple in construction, sight is adjusted to by regulating valve 213
Examine and adjust and be convenient rapid.
Preferably, the both ends for identifying pipe 214 are provided with ventilation stifled 219, and stifled 219 center of ventilation is provided with passage 220.Institute
The effect for stating ventilation stifled 219 is to block the both ends for identifying pipe 214, gas is only passed in and out mark pipe 214 from passage 220, protects
The registration of card mark pipe 214 is accurate.
Preferably, the regulating valve 213 includes stepped adjustable valve element, and the adjustable valve element includes front end 222, middle-end
223 and rear end 224, its front end 222 is cone, and middle-end 223 is connected by screw thread with adjusting means body 211, and rear end 224 is stretched
Go out adjusting means body 211；The rear end 224 of the adjustable valve element is provided with preloading spring 225.The preloading spring 221 is used to protect
Adjusting deviation will not be produced because of the diastema between screw thread by demonstrate,proving adjustable valve element.The gas flow in pipe 214 is identified when needing regulation
When, the front end 222 of adjustable valve element with the adjustable valve element of turn, can be made to produce change, gas with the fit clearance of adjusting means body 211
The flow area size of body produces change, so as to adjust the flow of gas.
According to embodiments of the present invention, the air register 2 also includes pressure sensor 22, the cool dryers being sequentially connected
23rd, spinner flowmeter 24 and electrohydraulic pressure control regulating valve 25, the pressure sensor 22 is used to monitor the pressure for being passed through gas, described
Cool dryers 23 are used to absorb the moisture being passed through in gas, and the spinner flowmeter 24 is used to monitor the total stream for being passed through gas
Amount, the electrohydraulic pressure control regulating valve 25 are used for the pressure for adjusting output gas.By above-mentioned setting, the gas being passed through can be ensured
Moisture-free, while ensure that the gas pressure for being passed through crystallizer 3 is stable.
According to embodiments of the present invention, it is described to adjust oily device 1 to include oil dispenser 12 and micro- fixed-quantity injector 13, the oil
Orchestration 12 is used to the lubricating oil that fuel tank 11 supplies being evenly distributed to micro- fixed-quantity injector 13, micro- fixed-quantity injector 13 and knot
Brilliant device 3 connects one to one, for supplying the lubricating oil of casting for crystallizer 3.Micro- fixed-quantity injector 13 is by it
The movement of portion's piston, lubricating oil is pressed into crystallizer.
With reference to Fig. 4-Fig. 7, according to embodiments of the present invention, the crystallizer 3 includes crystallizer body 31, pinboard 32 and stone
Black ring 33, the center of crystallizer body 31 are provided with crystallization channel 311, and the top of crystallization channel 311 is provided with pinboard 32, institute
State the lower section of pinboard 32 and be provided with the graphite annulus 33, oil gas micropore 331 is provided with the graphite annulus 33；The pinboard 32 is provided with
Mouth 321 is crystallized, the lower side edge of the crystallization mouth 321 is provided with downwardly projecting gas storage ring 322, the gas storage ring 322, pinboard
32 and graphite annulus 33 be in turn connected to form air chamber 34, the air chamber 34 is used to prevent aluminium liquid and the friendship of pinboard 32 and graphite annulus 33
Connect place's contact.
Crystallizer 3 provided by the invention, including crystallizer body 31, pinboard 32 and graphite annulus 33.Wherein, pinboard 32
The diameter of crystallization mouth 321 be less than the bore of crystallization channel 311 and graphite annulus 33, the poor pinboard 32 of heat conductivility is by aluminium
Liquid is separated into two parts up and down, prevents the aluminium liquid for crystallizing the lower section of mouth 321 to be cooled the cooling of water and will crystallize the top of mouth 321
Aluminium liquid cools down, and influences crystalline quality.
Preferably, oil pipe 312 and breather pipe 313, the breather pipe 313 and logical oil are provided with the crystallizer body 31
Pipe 312 is communicated to the back side of graphite annulus 33.The gas storage ring 322, pinboard 32 and graphite annulus 33 mentioned above connect successively
Connect and to form air chamber 34 and refer to：In casting process, gas is passed through graphite annulus 33 by the breather pipe 313, and gas is from graphite annulus 33
Front is separated out, and the space surrounded is sequentially connected because Action of Gravity Field accumulates in the gas storage ring 322, pinboard 32 and graphite annulus 33
It is interior.Because above-mentioned gas can be continuously replenished, even if portion gas is taken away by aluminium liquid, also certain gas is maintained to dynamic to stay
In the air chamber 34, the air chamber 34 is used to prevent that aluminium liquid from contacting with the junction of pinboard 32 and graphite annulus 33 and is taken the lead in
Crystallisation by cooling, and then the metal solid scratch for preventing casting from first being crystallized, lift the surface quality of casting.
In order to coordinate with the air chamber 34, the gas storage ring 322 is provided with arc-shaped transition section 323 close to the side of graphite annulus 33.
The arc-shaped transition section 323 coordinates with air chamber 34, and making aluminium liquid under the pressure of the gas, mobile smoothly turn to is erected from horizontal direction
Directly move down, and steering procedure is only completed by the gas pressure in gravity and air chamber 34, will not be connect with the inwall of crystallizer 3
Touch, reduce crystallizer 3 influences on the non-essential temperature of aluminium liquid.The oil gas micropore 331 is evenly distributed in graphite annulus 33, is made
Graphite annulus 33 forms thermal insulation layer, and the cooling effect of hole for water spraying is limited in the lower section of graphite annulus 33.Lubricating oil is from oil gas micropore 331
Separate out, form oil-bearing layer on the surface of graphite annulus 33, lubricating oil is completely burned before following aluminium liquid to leave graphite annulus 33, prevents from moistening
Lubricating oil enters in cooling water, causes environmental pollution.
In order to accelerate cooling velocity of the aluminium liquid in the lower end of crystallizer body 31, the crystallizer body 31 is additionally provided with hole for water spraying
314, the circumferential array of hole for water spraying 314 is on crystallization channel 311, positioned at the lower section of graphite annulus 33；The hole for water spraying 314 totally two
Row, two row's hole for water sprayings, 314 longitudinally spaced preset distance arrangement, and the hole for water spraying 314 is obliquely installed with different angle, makes two
The current that row's hole for water spraying 314 sprays interlock up and down.Cooling water can obtain complementation when being sprayed on casting circumferential surface, be really achieved casting
Part is cooled down uniformly without dead angle, and impact of the cooling water to cast(ing) surface is uniform, prevents that cooling water is excessive to casting local assault
And cause casting surface defect.
Wherein, the hole for water spraying 314 connects with cooling-water duct 317, the cooling-water duct 317 and crystallizer body 31
The connectivity part in outside is provided with screen pack 315, prevents the impurity in cooling water from entering, and prevents impurity from blocking hole for water spraying 314.It is preferred that
Ground, hydroecium 316 is additionally provided with the crystallizer body 31, the hydroecium 316 is connected with cooling-water duct 317, for cooling water
Aggregation and buffering before ejection, prevent from being mixed with gas in cooling water and causing hydraulic pressure suddenly to increase to cast(ing) surface and cause to damage,
Also the length of hole for water spraying 314 is shortened, the possibility that hole for water spraying 314 blocks is reduced, also ensure that the water velocity of each hole for water spraying 314
Unanimously.
The operation principle of this crystallizer 3 is as follows：When casting starts, dummy bar head is located near the hole for water spraying 314 of this crystallizer 3,
By the bottom lock of crystallization channel 311.Metal bath enters above pinboard 32, accumulates and starts and graphite annulus on dummy bar head
33 contacts.Then dummy bar head slowly moves down, until casting is completed.In casting process, the oil gas on the surface of graphite annulus 33 is micro-
Hole 331 starts to separate out lubricating oil and protective gas, and metal bath starts to form the light of predetermined diameter under the limitation of graphite annulus 33
Sliding surface.Wherein, by adjusting oily device 1 to provide, protective gas is provided lubricating oil by air register 2.Graphite annulus 33 itself, which has, to be contained
Oiliness, lubricating oil can burn totally during following metal bath to move down, and will not enter in cooling water, avoid damage to ring
Border.Protective gas accumulates in the bottom of pinboard 32 after separating out, and under the guide effect of gas storage ring 322, follow-up aluminium liquid is from switching
, can be to the direction transverse shifting of graphite annulus 33 after the crystallization mouth 321 of plate 32 enters crystallizer 3, arcuately changeover portion 323 is to switching
The bottom surface of plate 32 is close, and still, because protective gas is built up in air chamber 34, metal bath will not be with graphite annulus 33 and pinboard
32 junction contact, prevents metal bath rapid crystallization from forming sharp metallic particles, ensures surface quality of continuous castings.Casting
During, the protective gas in air chamber 34 can be continuously obtained supplement.When metal bath enters the lower section of graphite annulus 33, hole for water spraying
314 spray cooling water, to the quick cooling of casting.Due to the presence of pinboard 32, metal bath above pinboard 32 by
Influence to cooling water is less, can adapt to the casting speed demand under different technology conditions.
The above disclosed power for being only a kind of preferred embodiment of the present invention, the present invention can not being limited with this certainly
Sharp scope, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
- A kind of 1. oil-air lubrication casting system, it is characterised in that including adjusting oily device, air register and crystallizer,It is described to adjust oily device to be connected with fuel tank, for controlling the flow for the lubricating oil for being passed through crystallizer；The air register includes the gas flow adjusting means being connected with gas supply mechanism, and the gas flow adjusting means are used for The gas that gas supply mechanism is passed through is evenly distributed to crystallizer, and the flow of the separately adjustable each crystallizer of energy；The crystallizer, including crystallizer body, pinboard and graphite annulus, the crystallizer body center are provided with crystallization channel, Pinboard is provided with the top of the crystallization channel, the graphite annulus is provided with below the pinboard, oil gas is provided with the graphite annulus Micropore；The pinboard is provided with crystallization mouth, and the lower side edge of the crystallization mouth is provided with downwardly projecting gas storage ring, the gas storage Ring, pinboard and graphite annulus are in turn connected to form air chamber, and the air chamber is used to prevent aluminium liquid and the handing-over of pinboard and graphite annulus Place's contact.
- 2. oil-air lubrication casting system as claimed in claim 1, it is characterised in that the gas flow adjusting means include adjusting Regulating device body, the adjusting means body are provided with main inlet channel, regulating valve, mark pipe and branch outlet passageway；The mark Steel ball is provided with pipe, the internal diameter of the mark pipe is gradually reduced from top to bottom；The mark tube side-by-side is located at adjusting means vertically The observation intracavitary of body, the regulating valve are capable of the gas flow of separately adjustable corresponding mark pipe, and the observation chamber surface is covered It is stamped transparent shrouding.
- 3. oil-air lubrication casting system as claimed in claim 2, it is characterised in that the both ends for identifying pipe are provided with stifled, the institute that ventilates State the stifled center of ventilation and be provided with passage.
- 4. oil-air lubrication casting system as claimed in claim 3, it is characterised in that the regulating valve includes the adjustable of step type Valve element, the adjustable valve element include front end middle-end and rear end, and its front end is cone, and middle-end passes through screw thread and adjusting means body Adjusting means body is stretched out in connection, rear end；The rear end of the adjustable valve element is provided with preloading spring.
- 5. oil-air lubrication casting system as claimed in claim 1, it is characterised in that the air register also includes being sequentially connected Pressure sensor, cool dryers, spinner flowmeter and electrohydraulic pressure control regulating valve, the pressure sensor is passed through for monitoring The pressure of gas, the cool dryers are used to absorb the moisture being passed through in gas, and the spinner flowmeter is passed through for monitoring The total flow of gas, the electrohydraulic pressure control regulating valve are used for the pressure for adjusting output gas.
- 6. oil-air lubrication casting system as claimed in claim 1, it is characterised in that it is described adjust oily device include oil dispenser and Micro- fixed-quantity injector, the oil dispenser is used to the lubricating oil of fuel tank supply being evenly distributed to micro- fixed-quantity injector, described micro- Fixed-quantity injector connects one to one with crystallizer, for supplying the lubricating oil of casting for crystallizer.
- 7. oil-air lubrication casting system as claimed in claim 1, it is characterised in that be provided with oil pipe in the crystallizer body And breather pipe, the breather pipe and oil pipe are communicated to the back side of graphite annulus；Gas storage ring, pinboard and the graphite annulus are successively Connection forms air chamber and referred to：In casting process, gas is passed through graphite annulus, front analysis of the gas from graphite annulus by the breather pipe Go out, be sequentially connected because Action of Gravity Field accumulates in gas storage ring, pinboard and the graphite annulus in the space surrounded.
- 8. oil-air lubrication casting system as claimed in claim 7, it is characterised in that the gas storage ring is set close to graphite annulus side There is arc-shaped transition section.
- 9. oil-air lubrication casting system as claimed in claim 7 or 8, it is characterised in that the crystallizer body is additionally provided with spray Water hole, the hole for water spraying circumferential array is on crystallization channel, positioned at the lower section of graphite annulus；Spray by totally two rows, two rows for the hole for water spraying The longitudinally spaced preset distance arrangement in water hole, and the hole for water spraying is obliquely installed with different angle, makes what two row's hole for water sprayings sprayed Current interlock up and down；The hole for water spraying connects with cooling-water duct, and the connectivity part of the cooling-water duct and crystallizer outer body is provided with filtering Net；Hydroecium is additionally provided with the crystallizer body, the hydroecium is connected with cooling-water duct, poly- before being sprayed for cooling water Collection and buffering.
- 10. oil-air lubrication casting system as claimed in claim 9, it is characterised in that the oil gas micropore is evenly distributed on stone In Mo Huan, make graphite annular into thermal insulation layer, the cooling effect of hole for water spraying is limited in the lower section of graphite annulus；Lubricating oil is micro- from oil gas Hole separates out, and forms oil-bearing layer in graphite ring surface, lubricating oil is completely burned before following aluminium liquid to leave graphite annulus.
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| CN201710780492.4A CN107377912A (en) | 2017-09-01 | 2017-09-01 | A kind of oil-air lubrication casting system |
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| CN201710780492.4A CN107377912A (en) | 2017-09-01 | 2017-09-01 | A kind of oil-air lubrication casting system |
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| CN201710780492.4A Pending CN107377912A (en) | 2017-09-01 | 2017-09-01 | A kind of oil-air lubrication casting system |
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