CN108274671A - Epoxy sleeve device for casting and method for filling - Google Patents
Epoxy sleeve device for casting and method for filling Download PDFInfo
- Publication number
- CN108274671A CN108274671A CN201810196430.3A CN201810196430A CN108274671A CN 108274671 A CN108274671 A CN 108274671A CN 201810196430 A CN201810196430 A CN 201810196430A CN 108274671 A CN108274671 A CN 108274671A
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- Prior art keywords
- defoaming
- funnel
- level
- porous
- epoxy sleeve
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 58
- 238000005266 casting Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 230000010412 perfusion Effects 0.000 claims abstract description 44
- 230000000740 bleeding effect Effects 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims description 65
- 239000000463 material Substances 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005429 filling process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/42—Casting under special conditions, e.g. vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- External Artificial Organs (AREA)
Abstract
The invention belongs to epoxy sleeve perfusion technique field, a kind of epoxy sleeve device for casting and method for filling are provided；Device for casting includes device for casting ontology；Device for casting ontology is equipped with defoaming balancing device；It includes porous defoaming funnel to defoam balancing device；Loading hopper, vacuum extractor, surge tank and defoaming staving are additionally provided on device for casting ontology；Porous defoaming funnel is set in defoaming staving, and loading hopper is connect after passing through defoaming staving with the feed end of porous defoaming funnel；The other end for defoaming staving is perfusion end, and perfusion end is connect with one end of epoxy sleeve when use；The other end of epoxy sleeve is connect with vacuum extractor bleeding point；Vacuum extractor bleeding point is also connect with defoaming staving by surge tank；Method for filling is perfused for negative pressure, and filling liquid is before being perfused epoxy sleeve, by defoaming treatment.The present invention is perfused using negative-pressure balancing mode, and balance perfusion chamber pressure, makes filling process more stablize, perfusion effect is more preferable while eliminating bubble.
Description
Technical field
The invention belongs to epoxy sleeve perfusion technique fields, and in particular to a kind of epoxy sleeve device for casting and perfusion side
Method.
Background technology
In recent years, steel epoxy sleeve reinforcement recovery technology is widely used in because it can effectively share fault location stress
Oil and gas pipeline defect repair.The key of steel epoxy sleeve repair is the closely knit of perfusion materia and the full journey of filling
Degree.But there are mainly two types of method for filling for the steel epoxy sleeve being commonly used：Positive pressure perfusion, negative pressure perfusion.Perfusion is applied
Work technique is：A, filling liquid is stirred；B, filling liquid is perfused by pipeline.1, positive pressure is perfused：Since filling liquid has higher glue
Degree when compression pump injects filling liquid by air pressure, can bring large quantity of air into, and air is wrapped in sticky filling liquid and is formed
Stomata causes filling liquid performance to decline to a great extent；Also bubble can be brought into during being further stirred for because of agitation to reside in filling liquid, into
One step causes filling liquid performance to decline；2, negative pressure is perfused：The device for casting that ZL201020231777.6 is proposed uses negative pressure mode,
Reduce the bubble generated when pump injection, positive influences can be generated to the exclusion of bubble in filling liquid, but since filling liquid has
There is viscosity higher, when being filled into certain height, the filling liquid removal of bubbles ability entered to its follow-up feed inlet is limited.Separately
Outside when that will fill, bleeding point periphery filling liquid is easily pumped into exhaust pipe by the negative pressure that bleeding point is formed, and causes pumping end
Peripheral extent perfusion is discontented.
Invention content
In order to solve the above problem of the existing technology at least one of, present invention aims at provide a kind of epoxy set
Cylinder device for casting and method for filling.
The technical solution adopted in the present invention is：
A kind of epoxy sleeve device for casting, including device for casting ontology；The device for casting ontology is equipped with defoaming and balances
Device；The defoaming balancing device includes porous defoaming funnel；It is additionally provided with loading hopper on the device for casting ontology, vacuumizes
Device, surge tank and defoaming staving；The porous defoaming funnel be set to defoaming staving in, loading hopper pass through defoaming staving after with
The feed end connection of porous defoaming funnel；The other end for defoaming staving is perfusion end, when use the perfusion end and epoxy sleeve
One end connection；The other end of epoxy sleeve is connect with the vacuum extractor bleeding point；The vacuum extractor bleeding point is also
It is connect by surge tank with defoaming staving.
Further, the vacuum extractor is connect by the first control valve with surge tank；In use, epoxy sleeve is another
One end is connect by the second control valve with vacuum extractor.
Further, the porous defoaming funnel is more by the porous defoaming funnel of level-one, the porous defoaming funnel of two level and three-level
Hole defoaming funnel is sequentially connected composition；The feed end of the porous defoaming funnel of level-one is connect with loading hopper；The porous defoaming leakage of three-level
The discharge end of bucket is connect with perfusion end.
Further, it is evenly distributed with the first fluid hole on the porous defoaming funnel of the level-one, first fluid hole
Aperture is d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel, mm；U is filling liquid stream
Cross the speed of defoaming funnel, m/s；
Multiple second fluid holes are distributed in the middle part of the porous defoaming funnel of two level, the porous defoaming funnel of two level
Edge distribution has multiple third fluid holes；The aperture of second fluid hole is d2, d2Size meet formula：d2≤0.8d1(2)；
The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：dOutside 2≥2d2(3)；
Multiple 4th fluid holes are distributed in the middle part of the porous defoaming funnel of three-level, the porous defoaming funnel of three-level
Edge distribution has multiple 5th fluid holes；The aperture of 4th fluid hole is d3, d3Size meet formula：
d3≤0.8d2(4)；
The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:
dOutside 3≥2d2 (5)。
Further, the loading hopper is equipped with third control valve.
Further, the vacuum degree of first control valve and the second control valve is identical.
A kind of epoxy sleeve method for filling, the method for filling be negative pressure perfusion, filling liquid before epoxy sleeve is perfused,
By defoaming treatment.
Further, the defoaming treatment the specific steps are：
A, the porous defoaming treatment of level-one：Filling liquid is poured into the porous defoaming funnel of level-one, from the porous defoaming funnel of level-one
Outlet obtains level-one defoaming liquid；It is evenly distributed with the first fluid hole, first fluid hole on the porous defoaming funnel of level-one
Aperture be d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel, mm；U is filling liquid stream
Cross the speed of defoaming funnel, m/s；
B, the porous defoaming treatment of two level：Level-one defoaming liquid is poured into the porous defoaming funnel of two level, from the porous defoaming leakage of two level
The outlet of bucket obtains two level defoaming liquid；It is distributed with multiple second fluid holes in the middle part of the porous defoaming funnel of two level, described two
The edge distribution of the porous defoaming funnel of grade has multiple third fluid holes；The aperture of second fluid hole is d2, d2Size meet it is public
Formula：d2≤0.8d1(2)；The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：dOutside 2≥2d2(3)；
C, the porous defoaming treatment of three-level：Two level defoaming liquid is poured into the porous defoaming funnel of three-level, from the porous defoaming leakage of three-level
The outlet of bucket obtains three-level defoaming liquid；It is distributed with multiple 4th fluid holes in the middle part of the porous defoaming funnel of three-level, described three
The edge distribution of the porous defoaming funnel of grade has multiple 5th fluid holes；The aperture of 4th fluid hole is d3, d3Size meet
Formula：d3≤0.8d2(4)；The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:dOutside 3≥2d2(5)。
Further, the negative pressure perfusion further includes the step that three-level defoaming liquid is under vacuum conditions perfused epoxy sleeve
Suddenly.
Beneficial effects of the present invention are：The epoxy sleeve device for casting of the present invention defoams balancing device by increase, is filling out
Filling liquid eliminates the bubble entrained by stirring before entering epoxy sleeve, to improve the effect of perfusion；Defoaming balancing device is adopted
The bubble of 98% or more packing material can be removed by folding defoaming mode with multistage pore layer, solve to be more than 4000CPS high viscosity liquid
Body bubble wraps problem；The epoxy sleeve device for casting of the present invention is perfused using negative-pressure balancing mode, is eliminated flat while bubble
Weighing apparatus perfusion chamber pressure, makes the filling process of epoxy sleeve more stablize.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment.
Fig. 2 is the vertical view of the porous defoaming funnel of the level-one of embodiment.
Fig. 3 is the vertical view of the porous defoaming funnel of the two level of embodiment.
Fig. 4 is the vertical view of the porous defoaming funnel of the three-level of embodiment.
In figure：1- loading hoppers；2- third control valves；The porous defoaming funnel of 3- level-ones；The porous defoaming funnel of 4- two levels；5-
The porous defoaming funnel of three-level；6- epoxy sleeves；7- defoams staving；8- vacuum extractors；The second control valves of 9-；10- first is controlled
Valve；11- surge tanks；The first fluid holes of 12-；13- third fluid holes；The second fluid holes of 14-；The 4th fluid holes of 15-；16- the 5th
Fluid hole.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment does further explaination to the present invention.
Embodiment 1
As shown in Figs 1-4, a kind of epoxy sleeve device for casting of the present embodiment, device for casting ontology；The perfusion dress
It sets ontology and is equipped with defoaming balancing device；The defoaming balancing device includes porous defoaming funnel；On the device for casting ontology
It is additionally provided with loading hopper, vacuum extractor, surge tank and defoaming staving；The porous defoaming funnel is set in defoaming staving, into
Funnel is connect after passing through defoaming staving with the feed end of porous defoaming funnel；The other end for defoaming staving is perfusion end, is used
Shi Suoshu perfusions end is connect with one end of epoxy sleeve；The other end of epoxy sleeve is connect with vacuum extractor；Vacuum extractor
It is connect by surge tank with defoaming staving.
As shown in Figure 1, a kind of epoxy sleeve device for casting of the present embodiment, existing epoxy sleeve generally uses steel
It is made；Positive pressure perfusion and negative pressure perfusion can be used in its device for casting ontology, it is preferable that the present embodiment is perfused using negative pressure；Due to
Existing device for casting ontology can not effectively eliminate bubble, and to influence the effect of perfusion, the present invention is filled in existing perfusion
It sets and improves the effect of perfusion for eliminating the bubble in filling process provided with defoaming balancing device on ontology；Whole perfusion
Device is as shown in Figure 1, in use, filling liquid (generally in sticky glue) is entered defoaming by loading hopper 1 under the action of vacuum
Balancing device eliminates bubble；The perfusion end of defoaming balancing device is connect with the import of epoxy sleeve, the outlet of epoxy sleeve and pumping
Vacuum plant connects；Vacuum extractor 8 is also connect by surge tank 11 with defoaming balancing device, to which vacuum means are set to defoaming
Balancing device and perfusion pipe fitting provide vacuum environment, are conducive to the tank note of filling liquid in defoaming balancing device.Preferably, the defoaming
Balancing device includes porous defoaming funnel；Bubble is eliminated by porous defoaming funnel, porous defoaming funnel is placed in defoaming staving
Interior, loading hopper is connect after passing through the top for defoaming staving 7 with the feed inlet of porous defoaming funnel, and defoams the top of staving also
It is connect with vacuum extractor 8 by surge tank, to defoam direction of the gas in staving according to arrow as shown in Figure 1, is taken out
It walks, makes to keep vacuum state in defoaming staving, and perfusion operation can be carried out at the same time, due to the defoaming balancing device and filling of which
Vacuum environment when noting epoxy sleeve is both connected on the same vacuum extractor to make whole device in perfusion in pressure
Dynamic balance state defoams the pressure balance of balancing device and epoxy sleeve 6, to which which effectively eliminates bleeding point limit
It is discontented to solve the problems, such as that bleeding point is perfused caused by negative pressure causes to take filling liquid away for effect.Further, first control
The vacuum degree of valve and the second control valve is identical.
Further, the vacuum extractor is connect by the first control valve with surge tank；In use, epoxy sleeve is another
One end is connect by the second control valve with vacuum extractor.Further, the loading hopper is equipped with third control valve.
The effect of surge tank is to slow down promotion and the decrease speed of vacuum degree when vacuum pump booting, and prevent defoaming bucket and go out
After packing material is full of defoaming bucket when existing failure, tank is observed into buffering, reserves time enough to stop vacuum pump work, from
And packing material is avoided to be directly entered vacuum pump, cause the damage of vacuum pump.
For the ease of actual perfusion operation in vacuum extractor 8, is provided between vacuum extractor and surge tank
One control valve 10, when being actually perfused, the right end of epoxy sleeve passes through the second control valve 9 in the other end, that is, Fig. 1 of epoxy sleeve
It is connect with vacuum extractor, so as to adjust the aperture of the first control valve and the second control valve as needed；Consequently facilitating filling
Note operation；In order to adjust the charging rate of loading hopper 1, the loading hopper is equipped with third control valve 2.Preferably, it feeds
The height of filling liquid in funnel 1 is h1, h1>=0.08/ ρ gh, ρ is the density of filling liquid；G is acceleration of gravity, and h is filling liquid
Height of the liquid level from horizontal plane.
Further, the porous defoaming funnel is more by the porous defoaming funnel of level-one, the porous defoaming funnel of two level and three-level
Hole defoaming funnel is sequentially connected composition；The feed end of the porous defoaming funnel of level-one is connect with loading hopper；The porous defoaming leakage of three-level
The discharge end of bucket is connect with perfusion end.
In order to further increase the effect of defoaming, porous defoaming funnel of the invention is using the porous defoaming funnel of level-one 3, two
The porous defoaming funnel 4 of grade and the porous defoaming funnel of three-level 5 are sequentially connected composition；As shown in Figure 1, the porous defoaming funnel of level-one is upper
Portion is connect by third control valve 2 with the lower end of loading hopper 1；Filling liquid enters two level after the porous defoaming funnel processing of level-one
Porous defoaming funnel 4, the porous defoaming funnel of two level enter the porous defoaming funnel of three-level after treatment；The present embodiment is not limited to herein
On the basis of, increase level Four, the porous defoaming funnel of Pyatyi, can be adjusted according to the actual needs.
It is respectively the porous defoaming funnel 3 of level-one, the porous defoaming funnel 4 of two level and the porous defoaming leakage of three-level as in Figure 2-4
The vertical view of bucket 5, in order to preferably eliminate the bubble in filling liquid, the porous defoaming funnel of the porous defoaming funnel 3 of level-one, two level 4
It is determined as follows with the porous position in hole defoamed on funnel 5 of three-level and the size in hole.
Further, the first fluid hole 12, first fluid hole are evenly distributed on the porous defoaming funnel of the level-one
Aperture be d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel, mm；U is filling liquid stream
Cross the speed of defoaming funnel, m/s；
Multiple second fluid holes are distributed in the middle part of the porous defoaming funnel of two level, the porous defoaming funnel of two level
Edge distribution has multiple third fluid holes 13；The aperture of second fluid hole 14 is d2, d2Size meet formula：
d2≤0.8d1(2)；
The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：dOutside 2≥2d2(3)；
Multiple 4th fluid holes 15, the porous defoaming funnel of three-level are distributed in the middle part of the porous defoaming funnel of three-level
Edge distribution have multiple 5th fluid holes 16；The aperture of 4th fluid hole is d3, d3Size meet formula：d3≤
0.8d2(4)；
The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:
dOutside 3≥2d2 (5)。
By the setting of the size of the position and hole in the hole of above-mentioned porous defoaming funnels at different levels, ensure that greatest extent most
Basic bubble-free residual in filling liquid when being perfused afterwards.
Specifically, the porous defoaming balancing device course of work of the invention is as follows：
1, porous defoaming balancing device is made of >=1 grade of porous defoaming funnel；
2, it closes third valve and the filling liquid stirred evenly is poured into loading hopper, form the liquid level h1 of filling liquid,
h1≥0.08/ρgh；
3, vacuum extractor is opened, 1,2 control valves are opened, after negative pressure reaches 0.08MPa, opens 3# control valves.1 grade porous
Funnel is defoamed to start to work；
4, the porous defoaming funnel d of setting level-one1≥6.25λlu2；The porous defoaming funnel d of two level2≤0.8d1, external aperture
dOutside 2≥2d1；Aperture d inside the porous defoaming funnel of three-level3≤0.8d2, external aperture dOutside 3≥2d2；
5, bubble is tentatively eliminated by the porous defoaming funnel of level-one, filling liquid enters the porous defoaming funnel of two level and disappears
Bubble；
6, bubble is further eliminated by the porous defoaming funnel of two level, filling liquid enters the porous defoaming funnel of three-level and disappears
Bubble, filling liquid are simultaneously filled into steel loop oxygen sleeve；
7, when filling liquid is extracted out from steel epoxy sleeve pumping end pipe road, the second control valve of closing, holding vacuum degree >=
0.08MPa 1 minute or more closes third control valve, keeps vacuum degree >=0.08MPa 1 minute or more, closes 1# valves, close
Vacuum extractor, preferably vacuum means are set to vacuum pump.
Aperture selects explanation：
According to hydromechanical formula：
V=ρ gd2P/(32μL) (6)
Q=π d4ρgP/(128μL) (7)
Wherein v is flowing velocity, m/s；Q is flow, m3/s；ρ is filling material density, kg/m3；G is acceleration of gravity,
m/s2；D is defoaming funnel maximum diameter of hole, mm；P is that pressure at two ends is poor, Pa；μ is packing material viscosity, Pa.s；L is defoaming funnel
Thickness, mm；
The volume V, m of known perfusion cavity3；Provide infusion time t, s；Pressure at two ends difference P, Pa；Filling material density ρ,
kg/m3；
Can calculate defoaming funnel maximum diameter of hole (d) by formula (7) need to reach elimination gas thus according to test case
Minimum-value aperture d needed for the bubble of bubble >=98%It is minimum, i.e. aperture quantity >=d/dIt is minimum
The maximum distance that packing material flows through can be determined by the relationship of formula (6) speed v and time t, you can determine three
Maximum distance between grade defoaming funnel.
The present embodiment defoams balancing device by increasing perfusion end on original device for casting, enters sleeve in filling liquid
It is preceding to eliminate the bubble entrained by stirring；Defoaming balancing device folds defoaming mode using multistage pore layer can remove filling liquid
98% or more bubble solves the problems, such as to wrap more than 4000CPS high viscosity liquid bubbles；It is perfused, is disappeared using negative-pressure balancing mode
Balance perfusion chamber pressure while bubble removing, eliminates bleeding point edge effect, and solution bleeding point is taken filling liquid away because of negative pressure and made
At perfusion be discontented with problem.
Embodiment 2
The present embodiment provides a kind of epoxy sleeve method for filling, the method for filling is perfused for negative pressure, and filling liquid is being perfused
Before epoxy sleeve, by defoaming treatment.
A kind of epoxy sleeve method for filling of the present embodiment is suitable for the epoxy sleeve device for casting of embodiment 1.
A kind of epoxy sleeve method for filling of the present embodiment adds elimination filling on the basis of existing method for filling
The step of bubble in liquid, to keep filling effect more preferable.
Further, the defoaming treatment the specific steps are：
A, the porous defoaming treatment of level-one：Filling liquid is poured into the porous defoaming funnel of level-one, from the porous defoaming funnel of level-one
Outlet obtains level-one defoaming liquid；It is evenly distributed with the first fluid hole, first fluid hole on the porous defoaming funnel of level-one
Aperture be d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel；U flows through for filling liquid
Defoam the speed of funnel；
B, the porous defoaming treatment of two level：Level-one defoaming liquid is poured into the porous defoaming funnel of two level, from the porous defoaming leakage of two level
The outlet of bucket obtains two level defoaming liquid；It is distributed with multiple second fluid holes in the middle part of the porous defoaming funnel of two level, described two
The edge distribution of the porous defoaming funnel of grade has multiple third fluid holes；The aperture of second fluid hole is d2, d2Size meet it is public
Formula：d2≤0.8d1(2)；The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：dOutside 2≥2d2(3)；
C, the porous defoaming treatment of three-level：Two level defoaming liquid is poured into the porous defoaming funnel of three-level, from the porous defoaming leakage of three-level
The outlet of bucket obtains three-level defoaming liquid；It is distributed with multiple 4th fluid holes in the middle part of the porous defoaming funnel of three-level, described three
The edge distribution of the porous defoaming funnel of grade has multiple 5th fluid holes；The aperture of 4th fluid hole is d3, d3Size meet
Formula：d3≤0.8d2(4)；The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:dOutside 3≥2d2(5)。
Further, the negative pressure perfusion further includes the step that three-level defoaming liquid is under vacuum conditions perfused epoxy sleeve
Suddenly.
The aperture for defoaming the middle part of funnel in this method from level-one to three-level gradually reduces, to the gas in defoaming liquid at different levels
Bubble is also one and reduced process is gradually reduced, and more advanced defoaming funnel can be arranged according to demand；And two level and three-level disappear
The aperture for steeping the edge of funnel is larger, avoids the edge of two level and three-level defoaming funnel due to being asked caused by pressure imbalance
Topic.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific implementation mode should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (9)
1. a kind of epoxy sleeve device for casting, it is characterised in that：Including device for casting ontology；The device for casting ontology is equipped with
Defoam balancing device；The defoaming balancing device includes porous defoaming funnel；Charging leakage is additionally provided on the device for casting ontology
Bucket, vacuum extractor, surge tank and defoaming staving；The porous defoaming funnel is set in defoaming staving, and loading hopper, which passes through, to disappear
It is connect with the feed end of porous defoaming funnel after bubble staving；The other end for defoaming staving is perfusion end, when use the perfusion end
It is connect with one end of epoxy sleeve；The other end of epoxy sleeve is connect with the vacuum extractor bleeding point；The vacuum means
Bleeding point is set also to connect by surge tank with defoaming staving.
2. epoxy sleeve device for casting according to claim 1, it is characterised in that：The vacuum extractor passes through the first control
Valve processed is connect with surge tank；In use, the other end of epoxy sleeve is connect by the second control valve with vacuum extractor.
3. epoxy sleeve device for casting according to claim 2, it is characterised in that：The porous defoaming funnel is more by level-one
Hole defoaming funnel, the porous defoaming funnel of two level and the porous defoaming funnel of three-level are sequentially connected composition；The porous defoaming funnel of level-one
Feed end is connect with loading hopper；The discharge end of the porous defoaming funnel of three-level is connect with perfusion end.
4. epoxy sleeve device for casting according to claim 3, it is characterised in that：On the porous defoaming funnel of level-one
Even that the first fluid hole is distributed with, the aperture of first fluid hole is d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel, mm；U flows through for filling liquid to disappear
Steep the speed of funnel, m/s；
Multiple second fluid holes, the edge of the porous defoaming funnel of two level are distributed in the middle part of the porous defoaming funnel of two level
Multiple third fluid holes are distributed with；The aperture of second fluid hole is d2, d2Size meet formula：d2≤0.8d1(2)；
The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：dOutside 2≥2d2(3)；
Multiple 4th fluid holes, the edge of the porous defoaming funnel of three-level are distributed in the middle part of the porous defoaming funnel of three-level
Multiple 5th fluid holes are distributed with；The aperture of 4th fluid hole is d3, d3Size meet formula：d3≤0.8d2(4)；
The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:
dOutside 3≥2d2 (5)。
5. epoxy sleeve device for casting according to claim 4, it is characterised in that：The loading hopper is equipped with third control
Valve processed.
6. epoxy sleeve device for casting according to claim 2, it is characterised in that：First control valve and the second control
The vacuum degree of valve is identical.
7. a kind of epoxy sleeve method for filling, the method for filling is perfused for negative pressure, which is characterized in that filling liquid is in perfusion epoxy
Before sleeve, by defoaming treatment.
8. a kind of epoxy sleeve method for filling according to claim 7, which is characterized in that the specific step of the defoaming treatment
Suddenly it is：
A, the porous defoaming treatment of level-one：Filling liquid is poured into the porous defoaming funnel of level-one, from the outlet of the porous defoaming funnel of level-one
Obtain level-one defoaming liquid；It is evenly distributed with the first fluid hole, the hole of first fluid hole on the porous defoaming funnel of level-one
Diameter is d1；
d1Size meet formula：d1≥6.25λlu2(1)；
Wherein, λ is the friction coefficient for defoaming the material that funnel uses；L is the thickness for defoaming funnel, mm；U flows through for filling liquid to disappear
Steep the speed of funnel, m/s；
B, the porous defoaming treatment of two level：Level-one defoaming liquid is poured into the porous defoaming funnel of two level, from the porous defoaming funnel of two level
Outlet obtains two level defoaming liquid；Multiple second fluid holes are distributed in the middle part of the porous defoaming funnel of two level, the two level is more
The edge distribution of hole defoaming funnel has multiple third fluid holes；The aperture of second fluid hole is d2, d2Size meet formula：
d2≤0.8d1(2)；
The aperture of third fluid hole is dOutside 2；dOutside 2Size meet formula：
dOutside 2≥2d2(3)；
C, the porous defoaming treatment of three-level：Two level defoaming liquid is poured into the porous defoaming funnel of three-level, from the porous defoaming funnel of three-level
Outlet obtains three-level defoaming liquid；Multiple 4th fluid holes are distributed in the middle part of the porous defoaming funnel of three-level, the three-level is more
The edge distribution of hole defoaming funnel has multiple 5th fluid holes；The aperture of 4th fluid hole is d3, d3Size meet it is public
Formula：
d3≤0.8d2(4)；
The aperture of 5th fluid hole is dOutside 3；dOutside 3Size meet formula:
dOutside 3≥2d2 (5)。
9. a kind of epoxy sleeve method for filling according to claim 8, which is characterized in that negative pressure perfusion further include by
The step of three-level defoaming liquid is under vacuum conditions perfused epoxy sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196430.3A CN108274671A (en) | 2018-03-09 | 2018-03-09 | Epoxy sleeve device for casting and method for filling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810196430.3A CN108274671A (en) | 2018-03-09 | 2018-03-09 | Epoxy sleeve device for casting and method for filling |
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| Publication Number | Publication Date |
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| CN108274671A true CN108274671A (en) | 2018-07-13 |
Family
ID=62809442
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810196430.3A Pending CN108274671A (en) | 2018-03-09 | 2018-03-09 | Epoxy sleeve device for casting and method for filling |
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| Country | Link |
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Application publication date: 20180713 |