CN106825424A - Convey the stalk of casting molten metal and its casting mould of application - Google Patents
Convey the stalk of casting molten metal and its casting mould of application Download PDFInfo
- Publication number
- CN106825424A CN106825424A CN201710210368.4A CN201710210368A CN106825424A CN 106825424 A CN106825424 A CN 106825424A CN 201710210368 A CN201710210368 A CN 201710210368A CN 106825424 A CN106825424 A CN 106825424A
- Authority
- CN
- China
- Prior art keywords
- stalk
- skeleton body
- coating
- thermal insulation
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of casting mould of the stalk and its application for conveying casting molten metal, it is characterized in that, include substantially tubular skeleton body, relief region is respectively arranged with inside and outside the skeleton body, inside holding coating and external thermal insulation coating is coated in the relief region inside and outside respectively, the mechanical strength of the skeleton body is more than the external thermal insulation coating, the mechanical strength of inside holding coating；The external thermal insulation coating and inside holding coating are the coatings being made up of adiabatic mineral compound, and it includes aluminum oxide, talcum powder, mica, diatomite and titanium oxide.So it is easy to the maintenance of the stalk, extends the life-span of the stalk.
Description
Technical field
The present invention relates to a kind of accessory being applied on casting mould, more particularly to a kind of liter for feeding molten metal
Liquid pipe.
Background technology
Stalk is a kind of transition delivery pipe being installed between casting mold cavity and liquation storage chamber, for the liquation
Molten metal in cavity volume is transported in the casting mold cavity casting for carrying out metal casting.At present, relatively conventional stalk
Generally steel pipe, iron pipe or earthenware, but either steel pipe, iron pipe or earthenware, effect are all less desirable, main cause
Be the steel pipe and iron pipe thermal conductivity it is high, heat insulation effect is poor.Although the earthenware low thermal conductivity, protecting effect is good,
It is easier to damage during use, broken potsherd can pollute molten metal influence metal casting quality, and
Also it is very easy to damage occur in the process for dismantling the earthenware, results in the need for the earthenware for constantly more renewing, so not only
Maintenance cost is increased, the manufacturing schedule for also delaying.
Regarding to the issue above, Chinese utility patent 201120371120.4 proposes a kind of combination stalk, and it includes steel
The supervisor (1) of matter or irony, the supervisor (1) be arranged with by aluminium carbonate or alumina silicate or carborundum or silicon nitride or corundum or
Neck bush (2) and external bushing (3) that quartz is made, one end of the supervisor (1) are provided with and neck bush (2) and external bushing
(3) end face is close to the sealing ring (4) to form sealing and then prevent aluminium liquid from being contacted with supervisor (1), and the other end of the supervisor (1) sets
Have and be close to the ring assembly to form sealing and then prevent aluminium liquid from being contacted with supervisor (1) with neck bush (2) and external bushing (3) end face
(9).The combination stalk for being used for low pressure casting die of aluminum alloy hub has long service life, lower-cost advantage.
The content of the invention
The combination stalk proposed in above-mentioned patent 201120371120.4 solves stalk insulation effect in the prior art
It is really undesirable, be easily damaged, the problem that service life is short.But the combination stalk proposed in patent 201120371120.4
Structure is relative complex, and maintenance is also not easy to after damage.
In consideration of it, being necessary to be improved further the structure of the stalk.The present invention proposes a kind of conveying casting
With the stalk of molten metal, it is characterised in that include substantially tubular skeleton body, divide inside and outside the skeleton body
Relief region is not provided with, inside holding coating and external thermal insulation coating is coated in the relief region inside and outside respectively,
The mechanical strength of the skeleton body is more than the external thermal insulation coating, the mechanical strength of inside holding coating；The external thermal insulation coating and
Inside holding coating is the coating being made up of adiabatic mineral compound, and it includes aluminum oxide, talcum powder, mica, diatomite and oxygen
Change titanium.
Wherein, the stalk is a kind of transition delivery pipe being arranged between casting mold cavity and liquation storage chamber, is used for
Conveying casting molten metal.
Wherein, the skeleton body is substantially tubular, and features described above defines the architectural feature of the skeleton body, in the bone
Upper end pore is provided with the upper end top surface of support body, and lower end pore is provided with the top surface of lower end, the upper end pore and lower end
Pipeline is provided with and communicated between pore.Further, the pipeline of the skeleton body is tapered into from bottom to top.The skeleton body is
As the base rack body for supporting, shaping the external thermal insulation coating and inside holding coating, when the external thermal insulation coating and inside holding
Coating is coated on the skeleton body after making dry sizing, also substantially tubular.
In addition, it is necessary to explanation, the upper end top surface and the lower end top surface be with the relative bearing residing for them to
Name is given, is usually under installment state in the stalk, face above is defined as upper end top surface, conversely
Definition be lower end top surface.In the case of being not particularly illustrated below, the upper end top surface and the lower end top surface are using above-mentioned
Identical is defined.
Wherein, relief region is respectively arranged with inside and outside the skeleton body, the relief region inside and outside
Upper that external thermal insulation coating and inside holding coating are coated respectively, features described above further defines the structure of the skeleton body, described
Relief region refers to the region with sag and swell body.The relief region can be by the medial surface in the skeleton body and outer
Salient point is respectively arranged with side to be formed.Wherein, the salient point is that relative protrusion is arranged on the medial surface of the skeleton body and outer
Convex tectosome on side, hesitate big marine isolated island.So, the inside holding coating can be increased by the salient point
And frictional force of the external thermal insulation coating respectively and between the medial surface and lateral surface of the skeleton body, so as to optimize the inside holding apply
The adhesive force of layer and external thermal insulation coating, under making the inside holding coating and external thermal insulation coating be not easy to be peeled off from the skeleton body
Come.Or, it is respectively arranged with inner groovy on the medial surface and lateral surface of the skeleton body and external groove is formed.Wherein, institute
It is the recessed tectosome being arranged on the medial surface and lateral surface of the skeleton body that is recessed to state inner groovy and external groove, in the indent
Also the host cavity that depression is set is formed on groove and external groove, so, can not only be excellent by the inner groovy and external groove
Change the adhesive force of the inside holding coating and external thermal insulation coating, additionally it is possible to house the substantial amounts of adiabatic mineral compound, increase
The thickness of the inside holding coating and external thermal insulation coating, and reduce the consumable quantity of the skeleton body.And in order to reduce in described
Influence of the setting of groove and external groove to the skeleton body mechanical strength, further technical scheme is also possible that in described
Groove and external groove are shifted to install.So, seen in radial direction, the inner groovy and external groove be not using the cloth just to setting
Office's mode, make the skeleton body that there is rational wall thickness to set influences its machinery strong without causing local wall body excessively thin
Degree.
Wherein, the mechanical strength of the skeleton body is more than the external thermal insulation coating, the mechanical strength of inside holding coating, above-mentioned
Technical characteristic defines the relatively described external thermal insulation coating of the skeleton body, inside holding coating with more excellent mechanical strength.
The mechanical strength refers to resistance destruction under external force（Deformation and fracture）Ability.So, the skeleton body has foot
Enough mechanical strength support, shape the external thermal insulation coating and inside holding coatings, also make with enough mechanical strength resistances
During or load and unload the external force born during the stalk, it is ensured that the skeleton body during long-term use with
And will not easily occur damaging after experience being dismounted for multiple times.
Wherein, the external thermal insulation coating and inside holding coating are the coatings being made up of adiabatic mineral compound, and it is included
Aluminum oxide, talcum powder, mica, diatomite and titanium oxide, features described above define the external thermal insulation coating and inside holding coating
Main constituents, aluminum oxide, talcum powder, mica, diatomite and titanium oxide are the external thermal insulation coating and inside holding coating
Main constituents, but be not precluded from also including other auxiliary elements.Described in the adiabatic mineral compound is made
External thermal insulation coating and inside holding coating can not only have high-temperature stability, additionally it is possible to resist the rotten of molten metal.Secondly, institute
Stating adiabatic mineral compound also makes the external thermal insulation coating and the inside holding coating have the characteristic of low thermal conductivity such that it is able to a large amount of
Reduce scattering and disappearing for molten metal heat in ground.In addition, the aluminum oxide, talcum powder, mica, diatomite and titanium oxide add liquid to stir
Described adiabatic mineral compound as semisolid after mixing, now described adiabatic mineral compound is a kind of the partly solid of similar clay
State material, with certain adhesion characteristics and plasticity, by the adiabatic mineral compound be coated on respectively inside and outside institute
Stating and become the external thermal insulation coating and inside holding coating after made in relief region dry sizing, as the external thermal insulation coating and Nei Bao
Being repaired by smearing the adiabatic mineral compound again after rupture, defect etc. are damaged occurs in warm coating, and thus may be used
See, the external thermal insulation coating and inside holding coating being made of the adiabatic mineral compound also have easily repairs characteristic.
According to above-mentioned technical proposal, compared with prior art, Advantageous Effects of the invention are：
1. because the mechanical strength of the skeleton body is more than the external thermal insulation coating, the mechanical strength of inside holding coating, the bone
Support body can not only be supported, shape the external thermal insulation coating and inside holding coating, also be made with enough mechanical strength resistances
During or load and unload the external force born during the stalk, it is ensured that the skeleton body during long-term use and
Will not easily occur damaging after experience being dismounted for multiple times, be conducive to extending the service life of the stalk.
2., because the external thermal insulation coating and inside holding coating are the coatings that are made up of adiabatic mineral compound, it is included
Aluminum oxide, talcum powder, mica, diatomite and titanium oxide, so, can be common by the external thermal insulation coating and inside holding coating
Reduction is transported to scattering and disappearing for the heat of the molten metal in the stalk.Secondly, the adiabatic mineral compound has certain
Adhesion characteristics, the external thermal insulation coating and inside holding coating is consolidated and is closely coated on the skeleton body, and
The fixing device external thermal insulation coating and inside holding coating being fixedly installed on the skeleton body need not be set in addition, greatly
The earth simplifies the structure of the stalk.Again, also due to the external thermal insulation coating and inside holding coating are by adiabatic mineral
The coating that compound is made, so when leading to after rupture, defect etc. are damaged occur in the external thermal insulation coating and inside holding coating
Cross and smear again the adiabatic mineral compound and repaired, particularly in the case where there is little damage, can be in breakage
The adiabatic mineral compound is filled up in area, it is not necessary to external thermal insulation coating described in integral replacing and inside holding coating, is more not required to
Want stalk described in integral replacing, the stalk repeated multiple times can use, so, with by the adiabatic mineral compound
The external thermal insulation coating and the stalk of inside holding coating being made not only easy maintenance, additionally it is possible to reduce maintenance cost,
Greatly extend service life.
Together with the stalk is easily connected with the casting mold cavity of casting mould, further technical side
Case is also possible that and connection bulge loop is provided with the upper end top surface of the skeleton body, and the upper end pore of the skeleton body is arranged on
In the ring of the connection bulge loop in space.So, the connection bulge loop can't block the upper end pore and influence the liter
Liquid pipe transmits molten metal.Further technical scheme be can also be, connection method is provided with the bottom of the skeleton body
It is blue.
The present invention is except proposing a kind of new stalk, it is also proposed that a kind of casting mould of the application stalk,
Characterized in that, the casting mould includes base plate and the casting mold cavity for casting being arranged on above the base plate,
The stalk is also included, the upper end of the stalk is upward through the base plate and is connected with the casting mold cavity, and institute
Bottom is stated to be connected on the base plate.
Further technical scheme is also possible that and also includes sprue bush, the upper end of the sprue bush and the casting
Die cavity is connected, and bottom is fitted in the ring of the connection bulge loop in space.So, the bottom of the sprue bush is by institute
Connection bulge loop is stated to be positioned.
Further technical scheme is also possible that the pressing plate for also including and being arranged on below the base plate, the stalk
Adpting flange support on the pressing plate, trip bolt is locked onto on the base plate through the pressing plate.So, it is described by
The base plate support, the positioning stalk, it is convenient not only to dismount, nor easily to the external thermal insulation coating and inside holding
Coating causes to damage.
Because the present invention has These characteristics and advantage, may apply to convey the stalk of casting molten metal for this
And its casting mould of application.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the skeleton body；
Fig. 2 is the cross-sectional view using the stalk of technical solution of the present invention；
Fig. 3 is the cross-sectional view using the casting mould of the stalk；
Fig. 4 is the A portions enlarged drawing in Fig. 3.
Specific embodiment
It is as depicted in figs. 1 and 2 a kind of stalk 2 for feeding molten metal, the stalk 2 is included substantially in pipe
The skeleton body 20 of shape, is coated external thermal insulation coating 21 respectively on the lateral surface and medial surface of the skeleton body 20 and inside holding is applied
Layer 22；The mechanical strength of the skeleton body 20 is more than the external thermal insulation coating 21, the mechanical strength of inside holding coating 22；It is described outer
Heat insulation coating 21 and inside holding coating 22 are adiabatic mineral compounds, its include aluminum oxide, talcum powder, mica, diatomite and
Titanium oxide.
The structure of the stalk of application technical solution of the present invention is further described with reference to accompanying drawing first below.
As shown in figure 1, the skeleton body 20 is substantially tubular, to hold be provided with upper end pore 201, lower end on top surface thereon
Lower end pore 202 is provided with top surface, pipeline 200, institute are provided with and communicated between the upper end pore 201 and lower end pore 202
The caliber for stating pipeline 200 is tapered into from bottom to top.Connection bulge loop 202 is provided with the upper end top surface of the skeleton body 20,
The upper end pore 201 of the skeleton body 20 is arranged in the ring of the connection bulge loop 202 in space 2020.In the skeleton body 20
Bottom on be provided with adpting flange 204.The skeleton body 20 is used as supporting, shaping the external thermal insulation coating 21 and Nei Bao
The base rack body of warm coating 22, makes dry when the external thermal insulation coating 21 and inside holding coating 22 are coated on the skeleton body 20
It is also substantially tubular after sizing.
In actual application, the skeleton body 20 do not need only have enough mechanical strength supports, shape it is described outer
Heat insulation coating 21 and inside holding coating 22, in addition it is also necessary to enough mechanical strength resistances during the stalk 2 is loaded and unloaded
The external force born, it is ensured that will not easily occur damaging after being dismounted for multiple times is experienced, so it is excellent to need the skeleton body 20 to have
Different mechanical strength, its mechanical strength is more than the external thermal insulation coating 21, the mechanical strength of inside holding coating 22.On meeting
Requirement is stated, the skeleton body 20 is preferably using the manufacture of the metal materials such as steel, iron.
As shown in Fig. 2 being coated respectively on the lateral surface and medial surface of the skeleton body 20 by adiabatic mineral compound
The external thermal insulation coating 21 and inside holding coating 22 being made, the main constituents of the adiabatic mineral compound are oxidation
Aluminium, talcum powder, mica, diatomite and titanium oxide, but be not precluded from also including other auxiliary elements.With the adiabatic mineral
The external thermal insulation coating and inside holding coating that compound is made not only have the characteristic of low thermal conductivity, can in large quantities reduce gold
Scattering and disappearing for category liquation heat, also with corrosion resistance characteristic, effectively can be reduced or avoided to go out after being contacted with molten metal for a long time
The phenomenon such as now rotten, and high-temperature stability, can resist the heat passed over by molten metal without easily occurring
Melt and damage.
The aluminum oxide, talcum powder, mica, diatomite and titanium oxide turn into the described exhausted of semisolid after adding liquid agitation
Hot mineral compound, now described adiabatic mineral compound is a kind of semisolid of similar clay, with certain adhesion
Characteristic and plasticity, the adiabatic mineral compound are coated on the lateral surface of the skeleton body 20 and medial surface respectively and make dry
The external thermal insulation coating and inside holding coating are become after sizing, so, by gluing that the adiabatic mineral compound has
Attached characteristic, enables the external thermal insulation coating 21 and inside holding coating 22 to consolidate and is closely coated on the interior of the skeleton body 20
On side and lateral surface, the external thermal insulation coating and inside holding coating are fixedly installed the skeleton without setting in addition
Fixing device on body, significantly simplify the structure of the stalk.And when the external thermal insulation coating 21 and inside holding are applied
Being repaired by smearing the adiabatic mineral compound again after rupture, defect etc. are damaged occurs in layer 22, and particularly exists
In the case of there is little damage, the adiabatic mineral compound can be filled up in damage zone, it is not necessary to integral replacing institute
External thermal insulation coating 21 and inside holding coating 22 are stated, stalk 2 described in integral replacing is not needed more, the stalk 2 can be repeatedly
It is used for multiple times, so, with the external thermal insulation coating 21 and inside holding coating 22 being made up of the adiabatic mineral compound
The stalk 2 has easily repairs characteristic, easy maintenance, additionally it is possible to reduce maintenance cost, greatly extend service life.
When manufacturing the stalk 2, the adiabatic ore deposit is smeared respectively on the lateral surface and medial surface of the skeleton body 20
Thing compound, just distinguishes after the adiabatic mineral compound system does sizing on the lateral surface and medial surface of the skeleton body 20
Form the external thermal insulation coating 21 and inside holding coating 22.And in order to optimize the adhesive force of the heat insulation coating, except can
It is improved outward with by the physical property to the adiabatic mineral compound, can also be by the structure to the skeleton body 20
It is improved.
As shown in figure 1, being also respectively provided with salient point on the medial surface and lateral surface of the skeleton body 20（This project plan comparison
Simply, accompanying drawings are omitted）.The salient point region forms the relief region.Wherein, the salient point is relative protrusion
The convex tectosome on the medial surface and lateral surface of the skeleton body 20 is arranged on, hesitate big marine isolated island.So, by
The salient point can increase the inside holding coating 22 and external thermal insulation coating 21 respectively with the medial surface of the skeleton body 20 and outer
Frictional force between side, so as to optimize the adhesive force of the inside holding coating 22 and external thermal insulation coating 21, makes the inside holding
Coating 22 and external thermal insulation coating 21 are not easy to be peeled off from the skeleton body 20.
Or, as shown in figure 1, being respectively arranged with inner groovy 206 on the medial surface and lateral surface of the skeleton body 20
With external groove 205, the inner groovy 206 and the region of external groove 205 form the relief region.Wherein, the inner groovy
206 and external groove 205 be the recessed tectosome that is arranged on the medial surface and lateral surface of the skeleton body 20 of depression, in the indent
Also the host cavity that depression is set is formed on groove 206 and external groove 205, so, by the inner groovy 206 and external groove
205 adhesive force that can not only optimize the inside holding coating 22 and external thermal insulation coating 21, additionally it is possible to house substantial amounts of described exhausted
Hot mineral compound, increases the thickness of the inside holding coating 22 and external thermal insulation coating 21, and reduces the skeleton body 20
Consumable quantity.
And in order to reduce influence of the setting of the inner groovy 206 and external groove 205 to the mechanical strength of the skeleton body 20,
Further technical scheme is that the inner groovy 206 and external groove 205 are shifted to install.So, seen in radial direction, it is described interior
Groove 206 and external groove 205 make the skeleton body 20 be set with rational wall thickness not using the layout type just to setting
Its mechanical strength is influenceed without causing local wall body excessively thin.
The present invention is except proposing a kind of stalk 2 of new structure, it is also proposed that a kind of casting of the application stalk 2
Mould 100, as shown in Figure 3 and Figure 4, the casting mould 100 includes base plate 11 and is arranged on the top of the base plate 11
For the casting mold cavity 1 for casting.Sprue bush 4 is provided with and communicated with the charging aperture of the casting mold cavity 1.The stalk 2
Upper end is upward through the base plate 11 and is connected with the sprue bush 4, and the bottom 42 of the sprue bush 4 is fitted to the connection
In the ring of bulge loop 202 in space 2020.So, the bottom of the sprue bush 4 is positioned by the connection bulge loop 202.
On pressing plate 3, the pressing plate 3 sets the lower section of the base plate 11 to the support of adpting flange 204 on the bottom of the stalk 2,
Trip bolt is locked onto on the base plate 11 through the pressing plate 3.So, it is described described by the support of the base plate 11, positioning
Stalk 2, it is convenient not only to dismount, nor easily the external thermal insulation coating 21 and inside holding coating 22 are caused to damage.
Claims (7)
1. the stalk of casting molten metal is conveyed, it is characterised in that include substantially tubular skeleton body, the skeleton
Relief region is respectively arranged with inside and outside body, inside holding coating is coated respectively in the relief region inside and outside
With external thermal insulation coating, the mechanical strength of the skeleton body is more than the external thermal insulation coating, the mechanical strength of inside holding coating；It is described
External thermal insulation coating and inside holding coating are the coatings being made up of adiabatic mineral compound, and it includes aluminum oxide, talcum powder, cloud
Female, diatomite and titanium oxide.
2. stalk according to claim 1, it is characterised in that the caliber of the skeleton body is tapered into from bottom to top.
3. stalk according to claim 1 and 2, it is characterised in that be provided with the upper end top surface of the skeleton body
Connection bulge loop, the upper end pore of the skeleton body is arranged in the ring of the connection bulge loop in space.
4. stalk according to claim 3, it is characterised in that the bottom of the skeleton body is provided with connection method
It is blue.
5. using the casting mould of any stalk of Claims 1-4, it is characterised in that the casting mould is included
Base plate and the casting mold cavity for casting being arranged on above the base plate, also include the stalk, the stalk
Upper end be upward through the base plate and be connected with the casting mold cavity, and the bottom is connected on the base plate.
6. casting mould according to claim 5, it is characterised in that also include sprue bush, the upper end of the sprue bush
Portion is connected with the casting mold cavity, and bottom is fitted in the ring of the connection bulge loop of the skeleton body in space.
7. the casting mould according to claim 5 or 6, it is characterised in that also include and be arranged on below the base plate
Pressing plate, on the pressing plate, trip bolt locks onto the base plate to the adpting flange support of the skeleton body through the pressing plate
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210368.4A CN106825424B (en) | 2017-03-31 | 2017-03-31 | Convey the stalk of casting molten metal and its casting mould of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210368.4A CN106825424B (en) | 2017-03-31 | 2017-03-31 | Convey the stalk of casting molten metal and its casting mould of application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106825424A true CN106825424A (en) | 2017-06-13 |
| CN106825424B CN106825424B (en) | 2019-09-24 |
Family
ID=59141216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710210368.4A Active CN106825424B (en) | 2017-03-31 | 2017-03-31 | Convey the stalk of casting molten metal and its casting mould of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106825424B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940152A (en) * | 2017-12-21 | 2019-06-28 | 沈阳铸造研究所有限公司 | A kind of high temperature alloy antigravity casting stalk and its manufacturing method |
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| CN109940152A (en) * | 2017-12-21 | 2019-06-28 | 沈阳铸造研究所有限公司 | A kind of high temperature alloy antigravity casting stalk and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106825424B (en) | 2019-09-24 |
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