CN110238376A - The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism - Google Patents
The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism Download PDFInfo
- Publication number
- CN110238376A CN110238376A CN201910572469.5A CN201910572469A CN110238376A CN 110238376 A CN110238376 A CN 110238376A CN 201910572469 A CN201910572469 A CN 201910572469A CN 110238376 A CN110238376 A CN 110238376A
- Authority
- CN
- China
- Prior art keywords
- lower plate
- argon gas
- control mechanism
- argon
- steel
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 328
- 239000007789 gas Substances 0.000 claims abstract description 194
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 174
- 239000010959 steel Substances 0.000 claims abstract description 174
- 229910052786 argon Inorganic materials 0.000 claims abstract description 164
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 38
- 238000006467 substitution reaction Methods 0.000 claims description 21
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 20
- 230000008018 melting Effects 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 12
- 239000012188 paraffin wax Substances 0.000 claims description 11
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- 230000005496 eutectics Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009491 slugging Methods 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004540 pour-on Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000001993 wax Substances 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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
- B22D41/30—Manufacturing or repairing thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/38—Means for operating the sliding gate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/42—Features relating to gas injection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses the lower plate structures and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism, the lower plate structure is arranged below lower plate motherboard pours steel hole argon blowing system, it includes ar gas passage and argon gas inlet tube that this, which pours steel hole argon blowing system, ar gas passage one connect with argon gas inlet tube, other end and pour steel Kong Liantong, the other end of argon gas inlet tube is connected to lower plate steel shell surface, and it is connected to the argon air box of external supply argon gas, argon gas is directly blown to and pours steel hole, gas leakage occurs when compensating for filling pipe end Argon, argon gas cannot be blown into the deficiency for pouring steel hole when blocking, meet demand of the middle packet sliding plate flow-control system to argon gas amount, the Argon effect in steel channel and the stability of crystallizer slugging effect are poured in guarantee.
Description
Technical field
The present invention relates to continuously casting technical fields, lower plate structure more particularly to a kind of Zhong Bao sliding plate flow-control mechanism and
Its manufacturing method.
Background technique
It designs in the flow control mechanism of middle packet slide plate to the structure for pouring Argon in steel hole, makes Argon Bubble with pouring in steel hole
Liquid steel stream enters crystallizer, improves the degree of disturbing of steel stream, realizes the effect of slugging.It is typically designed to steel hole blowing argon gas is poured in slide plate
In the filling pipe end of flow control mechanism, but it sometimes appear that situations such as gas leakage, blocking occur for filling pipe end, causes argon gas that cannot be blown into and pours steel
Hole makes whole system that can not provide enough argon gas to crystallizer to meet slugging effect so that argon gas cannot imported into crystallizer
The requirement of fruit, while not can guarantee the argon gas-sealed effect for entirely pouring steel hole yet.
Currently, Argon design general in the lower plate in sliding plate flow-control mechanism has air supply trough in slide plate bottom, downwards
It is blown into argon gas between plate and soaking water gap plate face, guarantees the sealing between them, lower plate does not provide generally logical to the air blowing for pouring steel hole
Road.
Summary of the invention
When problem occurs the present invention solves the technical problem of filling pipe end Argon in middle packet sliding plate flow-control system, to argon
The unappeasable problem of the demand of tolerance is blown into argon gas to pouring in steel hole by other approach, flows through in steel hole to pour
Steel stream provides enough argon gas, and whole system is made to provide enough argon gas to crystallizer, guarantee to pour the Argon effect in steel channel with
The stability of crystallizer slugging effect, while guaranteeing the argon gas-sealed effect for entirely pouring steel hole.
In order to achieve the above objectives, the technical solution adopted by the present invention to solve the technical problems is:
The lower plate structure of a kind of Zhong Bao sliding plate flow-control mechanism, comprising: lower plate motherboard, lower plate steel shell and lower plate pour steel hole Argon
System,
The lower plate steel shell is wrapped up by the side of the lower plate motherboard and far from the portion lower surface for pouring steel hole；
The lower plate motherboard leans on entad setting one to pour steel hole perpendicular to lower plate motherboard upper surface；
It includes ar gas passage and argon gas inlet tube that the lower plate, which pours steel hole argon blowing system, is all set in below lower plate motherboard,
The ar gas passage one is connect with argon gas inlet tube, and other end connects with steel Kong Liantong, the other end of the argon gas inlet tube is poured
Lower plate steel shell surface is passed to, and is connected to the argon air box of external supply argon gas.
When filling pipe end because situations such as gas leakage, blocking, when causing argon gas that cannot be blown into pour steel hole, starts in lower plate and pour steel
Hole argon blowing system, by the argon gas of the certain flow generated in argon air box by argon gas inlet tube, dispersion flows through ar gas passage, finally
It blows to and pours steel hole, flow through and pour the liquid steel stream in steel hole and enter crystallizer entrainment of these argon gas, realize the effect of slugging, blow simultaneously
The argon gas for entering to pour steel hole also prevents air to enter and pours steel hole, ensure that the argon gas-sealed effect for pouring steel hole, and steel quality is poured in raising.
Preferably, the ar gas passage is pinhole arrangement.The channel of pinhole arrangement is conducive to make argon gas logical by argon gas
Uniform small Argon Bubble is formed behind road.
Preferably, the quantity of the ar gas passage is at least 4, radially arranges, and converges at and the argon gas import
The junction of pipe, with it is described pour one end that steel hole is connected to and be uniformly dispersed be distributed in the circumference for pouring steel hole.By experiment screening, argon
When gas channel is at least 4, the argon gas of formation can be relatively evenly into the steel stream poured in steel hole, and equally distributed Argon Bubble has
Conducive to equably slugging.
Preferably, the ar gas passage has consistent aperture and length.The aperture of ar gas passage is consistent with length, to argon
The resistance of gas is also just consistent, can play the role of uniform divided flows, the argon gas stream for pouring steel hole is finally blown into from each ar gas passage
Flow velocity it is also just consistent, to obtain uniform argon gas stream, be further conducive to equably slugging.
Preferably, the pore diameter range of the ar gas passage is 0.5-1.5mm.When aperture is greater than 1.5mm, in ar gas passage
For negative pressure, easily causes molten steel sucking ar gas passage to seep steel, become manufacturing contingences；When aperture is in 1.5mm or less, argon gas is logical
Positive pressure is changed by negative pressure in road, molten steel is prevented to suck, safety in production；If aperture is less than 0.5mm, channel internal resistance is excessive,
The total flow for being blown into argon gas is affected, easily causes and is blown into argon gas deficiency, to influence slugging effect.
To pour steel hole argon blowing system in preferably fixed lower plate structure, it is preferable that the lower section of the lower plate motherboard is arranged
There is a lower plate pour mass, the upper surface of the lower plate pour mass and the lower surface of lower plate motherboard are poured and connect, and the lower plate is poured
Injection body by entad be provided with lower plate motherboard pour steel pore radius it is identical and coaxial pour steel hole, the lower plate pours steel
Hole argon blowing system is set in the lower plate pour mass.The lower plate pour mass is made of castable, is capable of fixing and is poured steel hole Argon
System.
It is stronger for certain aggressivities, the erosion for the steel stream that lower plate motherboard is not enough to resist, to improve the anti-of lower plate structure
Aggressivity, it is preferable that pour steel hole peripheral part as replaced one piece of lower plate core plate in the center of the lower plate motherboard.
Preferably, contain zirconium in the material of the lower plate core plate.It, can be to improve lower plate since the corrosion resistance of zirconium is strong
The corrosion resistance of structure.
Preferably, the minimum wall thickness (MINI W.) of the lower plate core plate is more than or equal to 15mm.
A method of the lower plate structure manufacturing a kind of above-mentioned Zhong Bao sliding plate flow-control mechanism, it will be identical as the ar gas passage
The channel substitution material of quantity, same radius, equal length, is embedded in the corresponding position that lower plate is poured intracorporal ar gas passage, institute in advance
It states channel substitution material to be made of low melting material, then castable is poured into the position of lower plate pour mass, while will be described logical
Road substitution material is fixed in lower plate pour mass；After 150-400 DEG C of drying process, lower plate pour mass hardened forming, while institute
The low melting point part stated in the substitution material of channel is melted and flows out, and forms the space of ar gas passage.
Preferably, the channel substitution material is lower than the drying temperature by fusing point and is at normal temperature the low melting point of solid
Material composition.
For the habit of stablizing for improving form, it further includes that cannot melt under the drying temperature that the channel, which substitutes in material,
Thread-shaped body, such as cotton thread, nylon wire, silk thread are enclosed with the low melting material around the status object, when described low
After melting material melts and flows out in the drying process, the status object is pulled out into the lower plate pour mass, forms argon gas
The space in channel.
Preferably, channel substitution material by one of paraffin, naphthalene, rare-earth wires or a variety of forms.
Steel stream stronger for certain aggressivities, when the lower plate pour mass in lower plate structure is not enough to resist the erosion of steel stream
When, it is preferable that an inner nozzle is arranged in the lower section of the lower plate motherboard, and the center of the inner nozzle is provided with and lower plate mother
Plate pour steel hole same radius and what is be connected to pour steel hole, this pours steel hole and coaxial, the inner nozzle of pouring steel hole on lower plate motherboard
Upper surface and lower plate motherboard lower surface be in close contact, set below the outside of the inner nozzle and the lower plate motherboard
It is equipped with lower plate pour mass, the upper surface of the lower plate pour mass and the lower surface of lower plate motherboard are poured and connect, and the lower plate pours steel
Hole argon blowing system is set in the lower plate pour mass and the upper surface of the inner nozzle.In this way, after steel stream flows through lower plate motherboard
Inner nozzle is flowed through, does not need directly to contact with lower plate pour mass.
Such structure is designed, ar gas passage just needs to design by inner nozzle.Since inner nozzle is prefabricated component,
Wherein aperture is not easy, thus using the upper surface of inner nozzle fluting by the way of obtain ar gas passage.Preferably, the inner nozzle
An annular argon gas slot is provided on the outside of upper surface, which is connected to the argon gas inlet tube, the inner nozzle
Upper surface is additionally provided with slit, and one of the slit is connected to the annular argon gas slot, and other end, which is connected to, pours steel hole, the ring
Shape argon gas slot and the slit collectively form the ar gas passage.In this way, argon gas can enter annular argon by argon gas inlet tube
In air drain, then is uniformly assigned to enter by slit after argon gas by annular argon gas slot and pour steel hole.Slit design radial is equal
Even distribution then can be uniformly distributed in into the argon gas for pouring steel hole and pour on the circumference of steel hole, ensure that uniform point of argon gas in steel stream
Cloth is conducive to equably slugging.
Preferably, the quantity of the slit in the ar gas passage is at least 4, radially arranges, described all narrow
One end of seam is communicated with the annular argon gas slot, the other end of all slits and pours steel Kong Liantong, and is uniformly dispersed
It is distributed on the circumference for pouring steel hole.
Preferably, in the ar gas passage shape of the cross section of slit be triangle, it is circle, square, rectangle, more
Any one in the shape of side.
Preferably, the slit in the ar gas passage has consistent length.
Preferably, the cross sectional area range of the slit in the ar gas passage is 2-10mm2.
Preferably, the shape of the cross section of the annular argon gas slot in the ar gas passage be triangle, circle, square,
Any one in rectangle, polygon.
Preferably, the cross-sectional area of the annular argon gas slot in the ar gas passage is at least 8mm2.
Above each preferred embodiment is provided to the tiny Argon Bubble being evenly distributed in steel stream, to improve argon
The slugging effect of gas.
Steel stream stronger similarly, for certain aggressivities, that lower plate motherboard is not enough to resist, to improve the anti-of lower plate structure
Aggressivity, it is preferable that pour steel hole peripheral part as replaced one piece of lower plate core plate in the center of the lower plate motherboard.
Preferably, contain zirconium in the material of the lower plate core plate, to improve the corrosion resistance of lower plate structure.
Preferably, the minimum wall thickness (MINI W.) of the lower plate core plate is more than or equal to 15mm.
A method of manufacturing a kind of lower plate structure of above-mentioned Zhong Bao sliding plate flow-control mechanism with inner nozzle, the interior water
The upper surface of mouth is provided with and the annular argon gas slot and slit same shape, phase in ar gas passage in the position of the ar gas passage
The groove of same quantity, identical cross-section size, by with the channel of the ar gas passage same shape, identical quantity, identical size
Material is substituted, is embedded in the corresponding recesses of inner nozzle upper surface in advance and lower plate is poured the corresponding position of intracorporal ar gas passage, it is described
Channel substitution material is made of low melting material, then castable is poured into the position of lower plate pour mass, while by the channel
Substitution material is fixed in lower plate pour mass；After 150-400 DEG C of drying process, lower plate pour mass hardened forming, and meanwhile it is described
Low melting point part in the substitution material of channel is melted and flows out, and forms the space of ar gas passage.
Preferably, the channel substitution material is lower than the drying temperature by fusing point and is at normal temperature the low melting point of solid
Material composition.
Detailed description of the invention
Fig. 1 is the top view of the lower plate structure of the Zhong Bao sliding plate flow-control mechanism of the present invention with lower plate pour mass.
Fig. 2 is the bottom view of the lower plate structure of the Zhong Bao sliding plate flow-control mechanism of the present invention with lower plate pour mass.
Fig. 3 be along Fig. 1 A-A split, the lower plate structure of Zhong Bao sliding plate flow-control mechanism of the present invention a kind of cuts open
View.
Fig. 4 is the lower plate structure of the Zhong Bao sliding plate flow-control mechanism of the present invention with lower plate core plate and lower plate pour mass
Top view.
Fig. 5 be along Fig. 4 B-B split, the lower plate structure of Zhong Bao sliding plate flow-control mechanism of the present invention a kind of cuts open
View.
Fig. 6 is the lower plate structure of the Zhong Bao sliding plate flow-control mechanism of the present invention with inner nozzle and lower plate pour mass
Top view.
Fig. 7 be along Fig. 6 C-C split, the lower plate structure of Zhong Bao sliding plate flow-control mechanism of the present invention a kind of cuts open
View.
Fig. 8 is under the Zhong Bao sliding plate flow-control mechanism of the present invention with zirconium core plate, inner nozzle and lower plate pour mass
The top view of hardened structure.
Fig. 9 be along Fig. 8 D-D split, the lower plate structure of Zhong Bao sliding plate flow-control mechanism of the present invention a kind of cuts open
View.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment 1
Fig. 1 illustrates a kind of top view of the lower plate structure of Zhong Bao sliding plate flow-control mechanism of the present invention.Fig. 2 is illustrated
The bottom view of the lower plate structure of Fig. 1, Fig. 3 are A-A sectional view in Fig. 1.
Lower plate motherboard 3 is provided with one on the entad and pours steel hole 5 perpendicular to lower plate motherboard upper surface, this is poured
Steel hole 5 be using by lower plate motherboard 3 by entad and the longitudinal axis with the upper surface of the lower plate motherboard vertical as the center of circle with
The cylindrical hole that certain radius is formed.Lower plate steel shell 1 is by the side of the lower plate motherboard 3 and far from the part following table for pouring steel hole 5
Bread is wrapped up in.Preferably closely to connect the two, gap therebetween is filled with chamotte 2 and is closely joined together.
It includes ar gas passage 7 and argon gas inlet tube 6 that lower plate proposed by the present invention, which pours steel hole argon blowing system, is all set in lower plate
3 lower section of motherboard.Ar gas passage 7 one connect with argon gas inlet tube 6, and other end is connected to steel hole 5 is poured, argon gas inlet tube 6 it is another
One is connected to 1 surface of lower plate steel shell, and is connected to the argon air box of external supply argon gas.Argon gas inlet tube 6 usually by copper or
The metals such as iron or steel are made.The argon gas that external argon air box generates as a result, first passes through argon gas inlet tube 6 and enters in lower plate structure, then
It is equably transported to by several ar gas passages 7 and pours steel hole 5, argon gas is enable to pour around steel hole 5 evenly into pouring steel hole 5
In interior steel stream.Ar gas passage 7 is pinhole arrangement, and the pore diameter range of ar gas passage 7 is 0.5-1.5mm.
For the uniformity being distributed on pouring 5 circumference of steel hole when guaranteeing that argon gas enters and pours steel hole 5, the quantity of ar gas passage 7 is extremely
Less it is 4, radially arranges, converge at the junction with the argon gas inlet tube 6, and described to pour one end that steel hole 5 is connected to equal
Even ground dispersed distribution is evenly distributed on the circumference for pouring steel hole 5 in the circumference for pouring steel hole 5, the quantity of usual ar gas passage 7
When for the even numbers such as 6,8,10, it is more evenly distributed.The design ensure that argon gas enters uniformity when pouring steel hole 5 in position.Figure
Ar gas passage in 1-3 is 6, and the length and diameter in each channel be it is identical, this makes each channel be to the resistance of argon gas
It is identical, since argon gas is after argon gas inlet tube 6 while to enter each ar gas passage 7, by identical resistance
The argon gas speed entered when pouring steel hole 5 after each ar gas passage 7 is also just identical, to ensure that into the argon gas for pouring steel hole 5
Uniformity, that is, ensure that into pouring the uniformity of the argon gas of steel stream in steel hole 5, and argon gas uniformity in steel stream, can make
Steel stream has good slugging effect after entering crystallizer, and steel quality is poured in guarantee.
It is preferably fixed below lower plate to make lower plate pour steel hole argon blowing system, is fixed in using lower plate pour mass 4
Wherein.The lower section of lower plate motherboard 3 is provided with a lower plate pour mass 4, under the upper surface of lower plate pour mass 4 and lower plate motherboard 3
Surface casting connection, lower plate pour mass 4 by entad be provided with lower plate motherboard 3 to pour steel pore radius identical and coaxial
Pour steel hole 5, lower plate is poured steel hole argon blowing system and is set in the lower plate pour mass 4.
In practical manufacturing process, heating paraffin is melted into liquid, is immersed with the diameter cotton thread more slightly smaller than ar gas passage
It is taken out after in paraffin liquid, at normal temperature the paraffin cooled and solidified on cotton thread surface.Then interception and each ar gas passage equal length
6, cotton thread with wax, one of 6 cotton threads is flocked together, and is connected with argon gas inlet tube 6, remainder arrangement
On the position of ar gas passage 7.The position that steel hole 5 is poured among lower plate motherboard 3 is filled out with one with the mold for pouring steel hole same shape
It fills, castable is filled in pouring the cavity formed among steel punch die, lower plate motherboard lower surface and steel shell, through 150-400 DEG C
After drying process, the cotton thread on argon gas inlet tube 6 and ar gas passage position is fixed on lower plate motherboard 3 by castable hardened forming
Lower section forms lower plate pour mass 4.In heat drying process, upper thread surface paraffin melting is simultaneously flowed out, and pours cotton thread with lower plate
There is gap between injection body 4.Steel punch die is poured in taking-up, and cotton thread is extracted out, and the gap between cotton thread and lower plate pour mass 4 makes cotton
Line is easy to be extracted.Just ar gas passage 7 is formd after extraction in lower plate pour mass.
Embodiment 2
On the basis of embodiment 1, stronger for certain aggressivities, the erosion for the steel stream that lower plate motherboard is not enough to resist,
For the corrosion resistance for improving lower plate structure, steel hole peripheral part is poured by one piece of lower plate core plate in the center of the lower plate motherboard
Replaced, the minimum wall thickness (MINI W.) of lower plate core plate is more than or equal to 15mm.Since the corrosion resistance of zirconium is strong, it is preferable that the lower plate core plate
Containing zirconium, to improve the corrosion resistance of lower plate structure.
Fig. 4 illustrates hardened under the Zhong Bao sliding plate flow-control mechanism of the present invention with zirconium core plate and lower plate pour mass
The top view of structure.Fig. 5 is the cross-sectional view that B-B is splitted along Fig. 4.As seen from Figure 4, steel hole is poured instead of original on zirconium core plate 8
The lower plate motherboard 3 come pours steel hole, so that the steel stream poured in steel hole 5 is directly contacted with zirconium core plate 8, prevents steel stream from corroding lower plate female
Plate 3.In the production process, the part around steel hole 5 will be poured in lower plate motherboard 3 to cut out, zirconium core plate 8 is shaped to and lower plate
Motherboard 3 pours the identical shape of cutouts around steel hole, and is put into the part cut out in lower plate motherboard 3, is preferably fixed
Connection, is bonded between lower plate motherboard 3 and zirconium core plate 8 with chamotte.Then, it according to the production method in embodiment 1, is sequentially loaded into
Then cotton thread, castable on argon gas inlet tube 6, ar gas passage dry hardened forming, finally take out cotton thread, ar gas passage is complete
At production.
Embodiment 3
Steel stream stronger for certain aggressivities, when the lower plate pour mass in lower plate structure is not enough to resist the erosion of steel stream
When, a prefabricated inner nozzle is set below lower plate motherboard, and the center of the inner nozzle is provided with and lower plate main body
Pour steel hole same radius and be connected to pour steel hole, this pours steel hole, and steel hole is coaxial, this pours steel hole and lower plate with pouring on lower plate motherboard
Steel hole is poured using the same longitudinal axis as the center of circle in main body, the upper surface of the inner nozzle and the lower surface of lower plate main body are in close contact,
Lower plate pour mass, the upper table of the lower plate pour mass are provided with below the outside of the inner nozzle and the lower plate main body
The lower surface of face and lower plate main body, which is poured, to be connected, and the lower plate is poured steel hole argon blowing system and is set in the lower plate pour mass and institute
State the upper surface of inner nozzle.In this way, steel stream flows through inner nozzle after flowing through lower plate motherboard, do not need directly to connect with lower plate pour mass
Touching.
Fig. 6 illustrates hardened under the Zhong Bao sliding plate flow-control mechanism of the present invention with inner nozzle and lower plate pour mass
The top view of structure.Fig. 7 is the cross-sectional view that C-C is splitted along Fig. 6.
Lower plate steel shell 1 is wrapped up by the side of the lower plate motherboard 3 and far from the portion lower surface for pouring steel hole 5, for preferably
The two is closely connected, fill gap therebetween with chamotte 2 and is closely joined together.It is interior water below lower plate motherboard 3
Mouthfuls 9, what the centre bit of the rwo was equipped with identical circle core shaft and same radius pours steel hole 5, the lower surface and inner nozzle of lower plate motherboard 3
It is closely connected between 9 upper surface by chamotte.
Such structure is designed, ar gas passage just needs to design by inner nozzle 9.Since inner nozzle 9 is prefabricated component,
Aperture is not easy wherein, thus using the upper surface of inner nozzle 9 fluting by the way of obtain ar gas passage.
Lower plate in the present embodiment is poured steel hole argon blowing system and is made of argon gas inlet tube 6, annular argon gas slot 10 and slit 11.
As it can be seen that one of argon gas inlet tube 6 is connected to lower plate steel shell surface in Fig. 7, can be connected to the argon air box of external supply argon gas,
Other end is connected with annular argon gas slot 10.An annular argon gas slot 10, the annular argon are provided on the outside of 9 upper surface of inner nozzle
Air drain 10 is connected to the argon gas inlet tube 6, and 9 upper surface of inner nozzle is additionally provided with slit 11, one of the slit 11 with
The annular argon gas slot 10 is connected to, and other end, which is connected to, pours steel hole 5, and the annular argon gas slot 10 and the slit 11 collectively form
The ar gas passage.
As shown in fig. 6, annular argon gas slot 10 is the circle groove being arranged on the outside of 9 upper surface of inner nozzle, slit 11 is to set
Several grooves in 9 upper surface of inner nozzle, at least 4 are set, are radially arranged, one end of all slits 11 and institute
It states annular argon gas slot 10 to communicate, the other end of all slits 11 is connected to steel hole 5 is poured, and is uniformly dispersed to be distributed in and be poured
On the circumference in steel hole 5.The present embodiment design is 6 slits, and what which surrounded inner nozzle 9 pours steel hole radially
It is uniformly distributed, one of every slit is connected to annular argon gas slot 10, and other end, which is connected to, pours steel hole.Appearance in inner nozzle 9
Face, the lower section of lower plate motherboard 3, around argon gas inlet tube 6, lower plate steel shell 1 be internally provided with lower plate pour mass 4.When work, argon
Gas enters in lower plate structure by argon gas inlet tube 6, subsequently enters annular argon gas slot 10, is then equably conveyed by slit 11
To steel hole 5 is poured, slugging is finally completed as steel stream enters crystallizer evenly into the steel stream poured in steel hole 5.
The shape of the cross section of slit 11 and annular argon gas slot 10 all can be triangle, circle, pros in ar gas passage
Shape, rectangle, any one in polygon.Slit 11 in ar gas passage has consistent length.It is narrow in ar gas passage
The cross sectional area range of seam 11 is 2-10mm2.The cross-sectional area of annular argon gas slot in the ar gas passage is at least 8mm2.This
In embodiment, the cross section of annular argon gas slot 10 is designed as equilateral right angled triangle, and a bevel edge abuts against the appearance of inner nozzle 9
The upper edge in face, the upper surface of another bevel edge and inner nozzle 9 in the same plane, bevel edge a length of 8mm, cross-sectional area 32mm2.
6 equably the slit 11 of radial distribution with a thickness of 1mm, width 8mm, cross-sectional area 8mm2.
The production method of the present embodiment is, will be golden after lower plate motherboard 3 and lower plate steel shell 2 have been connected and fixed by chamotte 2
One for belonging to argon gas inlet tube 6 connect with the surface of lower plate steel shell 1；Then, inner nozzle 9 upper surface in the ar gas passage
Position output with the groove of slit same shape, identical quantity, identical cross-section size in ar gas passage, will be with the argon
The paraffin item of gas channel same shape, identical quantity, identical size is embedded in the recessed of the respective slit 11 of 9 upper surface of inner nozzle in advance
In slot, the corresponding position of the upper edge of 9 outer surface of inner nozzle and the ar gas passage in lower plate pour mass 4；It then, will be interior with chamotte 2
9 close adhesion of the mouth of a river lower plate motherboard 3 lower section and the steel hole site of pouring that both keeps be aligned；Then, castable is poured into
The position of lower plate pour mass, the i.e. lower section of lower plate motherboard 3, the inside of lower plate steel shell 1, inner nozzle 9 outer surface, while by argon gas
Inlet tube 6 and the paraffin item of annular 10 position of argon gas slot are fixed in lower plate pour mass；Finally, dry through 150-400 DEG C
After dry processing, lower plate pour mass hardened forming, while paraffin item in the ar gas passage is melted and flows out, and forms argon gas
The space in channel.
Embodiment 4
It is stronger for certain aggressivities on the basis of embodiment 3, the erosion for the steel stream that lower plate motherboard is not enough to resist,
For the corrosion resistance for improving lower plate structure, steel hole peripheral part is poured by one piece of lower plate core plate in the center of the lower plate motherboard
Replaced, the minimum wall thickness (MINI W.) of lower plate core plate is more than or equal to 15mm.Since the corrosion resistance of zirconium is strong, it is preferable that the lower plate core plate
Containing zirconium, to improve the corrosion resistance of lower plate structure.
Fig. 8 illustrates hardened under the Zhong Bao sliding plate flow-control mechanism of the present invention with zirconium core plate and lower plate pour mass
The top view of structure.Fig. 9 is the cross-sectional view that D-D is splitted along Fig. 8.As seen from Figure 8, steel hole is poured instead of original on zirconium core plate 8
The lower plate motherboard 3 come pours steel hole, so that the steel stream poured in steel hole 5 is directly contacted with zirconium core plate 8, prevents steel stream from corroding lower plate female
Plate 3.In the production process, the part around steel hole 5 will be poured in lower plate motherboard 3 to cut out, zirconium core plate 8 is shaped to and lower plate
Motherboard 3 pours the identical shape of cutouts around steel hole, and is put into the part cut out in lower plate motherboard 3, is preferably fixed
Connection, is bonded between lower plate motherboard 3 and zirconium core plate 8 with chamotte.Then, it according to the production method in embodiment 3, is sequentially loaded into
Argon gas inlet tube 6, inner nozzle 9, paraffin item, castable, then dry hardened forming, and paraffin item is melted at a high temperature of drying
It is flowed out after liquid, ar gas passage completes the production.
Claims (26)
1. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism, comprising: lower plate motherboard, lower plate steel shell and lower plate pour steel hole Argon system
System, it is characterised in that:
The lower plate steel shell is wrapped up by the side of the lower plate motherboard and far from the portion lower surface for pouring steel hole；
The lower plate motherboard leans on entad setting one to pour steel hole perpendicular to lower plate motherboard upper surface；
It includes ar gas passage and argon gas inlet tube that the lower plate, which pours steel hole argon blowing system, is all set in below lower plate motherboard, described
Ar gas passage one connect with argon gas inlet tube, other end and pours steel Kong Liantong, and the other end of the argon gas inlet tube is connected to
Lower plate steel shell surface, and be connected to the argon air box of external supply argon gas.
2. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 1, it is characterised in that: the argon gas is logical
Road is pinhole arrangement.
3. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 2, it is characterised in that: the argon gas is logical
The quantity in road is at least 4, radially arranges, and converges at the junction with the argon gas inlet tube, pours steel Kong Lian with described
Logical one end is uniformly dispersed the circumference for being distributed in and pouring steel hole.
4. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 3, it is characterised in that: the argon gas is logical
Road has consistent aperture and length.
5. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 4, it is characterised in that: the argon gas is logical
The pore diameter range in road is 0.5-1.5mm.
6. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 5, it is characterised in that: the lower plate is female
A lower plate pour mass is provided with below plate, the upper surface of the lower plate pour mass and the lower surface of lower plate motherboard are poured and connect
Connect, the lower plate pour mass by entad be provided with lower plate motherboard pour steel pore radius it is identical and coaxial pour steel
Hole, the lower plate are poured steel hole argon blowing system and are set in the lower plate pour mass.
7. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 6, it is characterised in that: the lower plate is female
Steel hole peripheral part is poured as replaced one piece of lower plate core plate in the center of plate.
8. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 7, it is characterised in that: the lower plate core
Contain zirconium in the material of plate.
9. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 8, it is characterised in that: the lower plate core
The minimum wall thickness (MINI W.) of plate is more than or equal to 15mm.
10. a kind of manufacture is according to a kind of side of the lower plate structure of the described in any item Zhong Bao sliding plate flow-control mechanisms of claim 2-9
Method, it is characterised in that: the channel of quantity identical as the ar gas passage, same radius, equal length is substituted into material, is embedded in down in advance
Plate is poured the corresponding position of intracorporal ar gas passage, and the channel substitution material is made of low melting material, then pours castable
It infuses to the position of lower plate pour mass, while channel substitution material being fixed in lower plate pour mass；Through 150-400 DEG C of drying
After processing, lower plate pour mass hardened forming, while the low melting point part in the substitution material of the channel is melted and flows out, and forms argon
The space in gas channel.
11. manufacturing method according to claim 10, it is characterised in that: the channel substitution material is dry lower than described by fusing point
Dry temperature and at normal temperature for solid low melting material form.
12. manufacturing method according to claim 11, it is characterised in that: further include described dry in the channel substitution material
The thread-shaped body that cannot melt at dry temperature is enclosed with the low melting material around the thread-shaped body, when the eutectic
After point material melts and flows out in the drying process, the thread-shaped body is pulled out into the lower plate pour mass, it is logical to form argon gas
The space in road.
13. manufacturing method according to claim 12, it is characterised in that: the channel substitution material is by paraffin, naphthalene, rare-earth wires
One of or a variety of compositions.
14. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 1, it is characterised in that: the lower plate
The lower section of motherboard is arranged an inner nozzle, and the center of the inner nozzle, which is provided with, pours steel hole same radius with lower plate motherboard
And what is be connected to pours steel hole, this pours steel hole, and steel hole is coaxial with pouring on lower plate motherboard, the upper surface of the inner nozzle and lower plate motherboard
Lower surface be in close contact, be provided with lower plate pour mass, institute below the outside of the inner nozzle and the lower plate motherboard
The lower surface casting of the upper surface and lower plate motherboard of stating lower plate pour mass connects, and the lower plate pours steel hole argon blowing system and is set to institute
State the upper surface in lower plate pour mass with the inner nozzle.
15. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 14, it is characterised in that: the interior water
An annular argon gas slot is provided on the outside of mouth upper surface, which is connected to the argon gas inlet tube, the interior water
Mouth upper surface is additionally provided with slit, and one of the slit is connected to the annular argon gas slot, and other end, which is connected to, pours steel hole, described
Annular argon gas slot and the slit collectively form the ar gas passage.
16. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 15, it is characterised in that: the argon gas
The quantity of slit in channel is at least 4, radially arranges, one end of all slits and the annular argon gas slot
It communicates, the other end of all slits and pours steel Kong Liantong, and be uniformly dispersed on the circumference for being distributed in and pouring steel hole.
17. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 16, it is characterised in that: the argon gas
The shape of the cross section of slit is triangle, circle, square, rectangle, any one in polygon in channel.
18. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 17, it is characterised in that: the argon gas
Slit in channel has consistent length.
19. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 18, it is characterised in that: the argon gas
The cross sectional area range of slit in channel is 2-10mm2。
20. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 19, it is characterised in that: the argon gas
The shape of the cross section of annular argon gas slot in channel is triangle, circle, square, rectangle, any one in polygon
Kind.
21. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 20, it is characterised in that: the argon gas
The cross-sectional area of annular argon gas slot in channel is at least 8mm2。
22. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 21, it is characterised in that: the lower plate
Steel hole peripheral part is poured as replaced one piece of lower plate core plate in the center of motherboard.
23. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 22, it is characterised in that: the lower plate
Contain zirconium in the material of core plate.
24. a kind of lower plate structure of Zhong Bao sliding plate flow-control mechanism according to claim 23, it is characterised in that: the lower plate
The minimum wall thickness (MINI W.) of core plate is more than or equal to 15mm.
25. a kind of method for the lower plate structure for manufacturing a kind of Zhong Bao sliding plate flow-control mechanism described in 4-24 according to claim 1,
Be characterized in that: the upper surface of the inner nozzle is provided with and the annular argon gas slot in ar gas passage in the position of the ar gas passage
It, will be with the ar gas passage same shape, identical number with the groove of slit same shape, identical quantity, identical cross-section size
The channel substitution material of amount, identical size, is embedded in advance in the corresponding recesses of inner nozzle upper surface and lower plate is poured intracorporal argon gas and leads to
The corresponding position in road, the channel substitution material are made of low melting material, then castable is poured into the position of lower plate pour mass
It sets, while channel substitution material being fixed in lower plate pour mass；After 150-400 DEG C of drying process, lower plate pour mass
Hardened forming, while the low melting point part in the substitution material of the channel is melted and flows out, and forms the space of ar gas passage.
26. manufacturing method according to claim 25, it is characterised in that: the channel substitution material is dry lower than described by fusing point
Dry temperature and at normal temperature for solid low melting material form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572469.5A CN110238376A (en) | 2019-06-28 | 2019-06-28 | The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910572469.5A CN110238376A (en) | 2019-06-28 | 2019-06-28 | The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110238376A true CN110238376A (en) | 2019-09-17 |
Family
ID=67890123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910572469.5A Pending CN110238376A (en) | 2019-06-28 | 2019-06-28 | The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110238376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700487A (en) * | 2022-02-24 | 2022-07-05 | 鞍山浦项特种耐火材料有限公司 | Manufacturing method of continuous casting tundish breathable sliding plate and breathable sliding plate |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613545A (en) * | 1991-11-12 | 1997-03-25 | Shinagawa Refractories Co. Ltd. | Inert gas injecting plate brick or insert nozzle brick for use in a sliding gate valve apparatus of molten metal |
| US5958279A (en) * | 1992-05-29 | 1999-09-28 | Toshiba Ceramics Co., Ltd | Refractory slide-gate plate |
| CN1233984A (en) * | 1996-10-17 | 1999-11-03 | 维苏维尤斯·克鲁斯布公司 | Refractory assemblies |
| JP2004255433A (en) * | 2003-02-27 | 2004-09-16 | Toshiba Ceramics Co Ltd | Slide gate plate |
| CN1747803A (en) * | 2002-12-10 | 2006-03-15 | 维苏维尤斯集团有限公司 | Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device |
| CN201817512U (en) * | 2010-10-25 | 2011-05-04 | 莱芜钢铁股份有限公司 | Inner nozzle brick for converter tap hole slide gate |
| CN102189249A (en) * | 2010-03-19 | 2011-09-21 | 维苏维尤斯集团有限公司 | Inner nozzle for transferring molten metal contained in a metallurgical vessel and device for transferring molten metal |
| CN202539509U (en) * | 2011-12-15 | 2012-11-21 | 北京利尔高温材料股份有限公司 | Oriented-argon blowing purging upper nozzle of continuous casting tundish |
| JP2015016499A (en) * | 2013-07-12 | 2015-01-29 | Ｊｆｅスチール株式会社 | Continuous casting method of steel |
| CN210334349U (en) * | 2019-06-28 | 2020-04-17 | 维苏威高级陶瓷(中国)有限公司 | Lower plate structure of flow control mechanism of tundish sliding plate |
-
2019
- 2019-06-28 CN CN201910572469.5A patent/CN110238376A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613545A (en) * | 1991-11-12 | 1997-03-25 | Shinagawa Refractories Co. Ltd. | Inert gas injecting plate brick or insert nozzle brick for use in a sliding gate valve apparatus of molten metal |
| US5958279A (en) * | 1992-05-29 | 1999-09-28 | Toshiba Ceramics Co., Ltd | Refractory slide-gate plate |
| CN1233984A (en) * | 1996-10-17 | 1999-11-03 | 维苏维尤斯·克鲁斯布公司 | Refractory assemblies |
| CN1747803A (en) * | 2002-12-10 | 2006-03-15 | 维苏维尤斯集团有限公司 | Refractory plate for a device for the insertion and/or removal of a nozzle for a casting installation combined with a sliding plate flow-control device |
| JP2004255433A (en) * | 2003-02-27 | 2004-09-16 | Toshiba Ceramics Co Ltd | Slide gate plate |
| CN102189249A (en) * | 2010-03-19 | 2011-09-21 | 维苏维尤斯集团有限公司 | Inner nozzle for transferring molten metal contained in a metallurgical vessel and device for transferring molten metal |
| CN201817512U (en) * | 2010-10-25 | 2011-05-04 | 莱芜钢铁股份有限公司 | Inner nozzle brick for converter tap hole slide gate |
| CN202539509U (en) * | 2011-12-15 | 2012-11-21 | 北京利尔高温材料股份有限公司 | Oriented-argon blowing purging upper nozzle of continuous casting tundish |
| JP2015016499A (en) * | 2013-07-12 | 2015-01-29 | Ｊｆｅスチール株式会社 | Continuous casting method of steel |
| CN210334349U (en) * | 2019-06-28 | 2020-04-17 | 维苏威高级陶瓷(中国)有限公司 | Lower plate structure of flow control mechanism of tundish sliding plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114700487A (en) * | 2022-02-24 | 2022-07-05 | 鞍山浦项特种耐火材料有限公司 | Manufacturing method of continuous casting tundish breathable sliding plate and breathable sliding plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3849101A (en) | Cooling system for glass forming mold | |
| CN209481864U (en) | A kind of two-component spinning pack | |
| CN113909442B (en) | Casting gating system and precision casting method for improving quality of magnesium alloy casting | |
| CN107020383B (en) | It is used to prepare the tundish and its jetting method, vacuum melting furnace of metal dust | |
| CN208035219U (en) | A kind of hot-runner nozzle | |
| CN110238376A (en) | The lower plate structure and its manufacturing method of a kind of Zhong Bao sliding plate flow-control mechanism | |
| JP2668849B2 (en) | Manufacturing method of spinneret | |
| CN107855468A (en) | A kind of Al-alloy metal casting mould | |
| CN206632347U (en) | A kind of solder casting conduction part flow arrangement | |
| CN210334349U (en) | Lower plate structure of flow control mechanism of tundish sliding plate | |
| CN208964788U (en) | The cooling structure of mould for glass bottle | |
| CN216230466U (en) | Static mixer and injection molding machine with same | |
| CN206763913U (en) | For preparing tundish, the vacuum melting furnace of metal dust | |
| JP3230210U (en) | Tips for hot runners | |
| CN101138784A (en) | Graphite jig | |
| CN208697902U (en) | A kind of pipeline molding die | |
| CN209289687U (en) | Sharp-tongued, hot mouth component and hot runner system | |
| JP2002128538A (en) | Bushing for glass fiber | |
| CN207578907U (en) | A kind of hot nozzle structure of anti-wire drawing | |
| CN207521704U (en) | A kind of metal ball manufacturing machine | |
| CA1223738A (en) | Manufacture of moulded articles of glassware | |
| CN205337580U (en) | Take capsule water dropper device for cigarette of control by temperature change | |
| CN205818355U (en) | Hot flow path lining water route | |
| CN101744723B (en) | Dripper | |
| CN204685963U (en) | A kind of cast pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |