CN207996984U - A kind of cast gate sheath assembly - Google Patents
A kind of cast gate sheath assembly Download PDFInfo
- Publication number
- CN207996984U CN207996984U CN201820443047.9U CN201820443047U CN207996984U CN 207996984 U CN207996984 U CN 207996984U CN 201820443047 U CN201820443047 U CN 201820443047U CN 207996984 U CN207996984 U CN 207996984U
- Authority
- CN
- China
- Prior art keywords
- thermal insulation
- insulation cup
- cup liner
- screw thread
- external screw
- 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.)
- Active
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model belongs to technical field of metallurgical manufacturing, and in particular to a kind of novel cast gate sheath assembly.Including sprue bush, the first thermal insulation cup liner, the second thermal insulation cup liner and thermal insulation material;The first external screw thread, the first thermal insulation cup liner upper end setting and matched first internal thread of the first external screw thread is arranged in the sprue bush lower end outside;The second external screw thread, upper end setting and matched second internal thread of the second external screw thread of the second thermal insulation cup liner is arranged in the first thermal insulation cup liner lower end;The thermal insulation material is arranged on the outside of the first thermal insulation cup liner and the second thermal insulation cup liner.It solves and easily there is gap between existing cast gate sheath assembly sprue bush and thermal insulation cup, and insulating lining hole depth is long, the technical issues of low production efficiency.
Description
Technical field
The utility model belongs to technical field of metallurgical manufacturing, and in particular to a kind of novel cast gate sheath assembly.
Background technology
Low pressure casting refers to applying 0.01~0.05Mpa bigger than atmospheric pressure on the molten soup surface of closed holding stove
Air pressure or inert gas pressure, molten soup are pressed into and stove by soaking rising to soup pipe (stalk) in molten soup
In the mold for the top being connected to.Molten soup is filled since the lower part of cavity is slowly, is solidified after keeping the pressure of a period of time.
Solidification is shifted to cast gate direction since product top, and gate portions are exactly the time that pressurization terminates at the time of solidification.Then
Just perfect casting has been obtained by the directional solidification of cast gate and the riser pressure effect since cast gate.Finally when casting is cold
But to product can be removed from the molds below solid-state temperature.
Cast gate sheath assembly is the running channel of low pressure casting, generally comprises sprue bush and thermal insulation cup.Cast gate in the prior art
The sprue bush and thermal insulation cup of sheath assembly are embedded connection, and this connection type can have the gap presence in junction, low
During die casting is made, when low-pressure machine is pressurized, it can flow out, immerse in the thermal insulation material of thermal insulation cup from seam crossing after molten aluminum is pressurized,
Since the metallic aluminium heat conduction of immersion is fast, heat insulation effect is influenced, causes temperature of aluminum liquid unstable, influences cast article quality.
Utility model content
The utility model provides a kind of novel cast gate sheath assembly, solve existing cast gate sheath assembly sprue bush and
Easily there is gap between thermal insulation cup, to influence cast the technical issues of.
Specific technical solution is the cast gate sheath assembly, including sprue bush, the first thermal insulation cup liner, the second thermal insulation cup
Liner and thermal insulation material;The inner upper end inflated diameter of the sprue bush is more than lower diameter;The sprue bush lower end outside is set
Set the first external screw thread, the first thermal insulation cup liner upper end setting and matched first internal thread of the first external screw thread;Described first
The second external screw thread, upper end setting and the second external screw thread matched the of the second thermal insulation cup liner is arranged in thermal insulation cup liner lower end
Two internal threads;The thermal insulation material is arranged on the outside of the first thermal insulation cup liner and the second thermal insulation cup liner.
It is additionally provided with convex shoulder in the middle part of the second thermal insulation cup liner.
The boring upper end diameter of second thermal insulation cup liner is less than lower end diameter.
It is provided with raised particle on the outside of first thermal insulation cup liner and the second thermal insulation cup liner.
Advantageous effect, by the way that muff to be designed to be divided into two parts, to make the combination of sprue bush and thermal insulation cup dismantle more
It is convenient to add;By the way that sprue bush lower end is designed to external screw thread, and it is screw thread therewith by the upper design of the first thermal insulation cup liner
The internal thread matched, to both make even closer combination, between gap smaller, it is small preferably that molten aluminum is close in low-pressure state
It is enclosed in inside running channel, prevents molten aluminum from leaking;Molten aluminum can be reduced by being more than lower diameter by the inner upper end inflated diameter of sprue bush
The appearance for situation of boiling;Contribute to the positioning of sprue bush by being provided with convex shoulder more in the middle part of the second thermal insulation cup liner;It is logical
The raised particle of outside setting of the first thermal insulation cup liner and the second thermal insulation cup liner is crossed to easily facilitate thermal insulation material first
The attachment of lining in thermal insulation cup liner and the second thermal insulation cup.
Description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, attached drawing needed for embodiment description will be made below
It is simple to introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the utility model, common to this field
For technical staff, without creative efforts, other attached drawings are can also be obtained according to these attached drawings, these
The technical solution that attached drawing is directly obtained should also belong to the protection scope of the utility model.
Fig. 1 is the sectional view of the utility model.
Reference sign:1, sprue bush;1.1, the first external screw thread;2, the first thermal insulation cup liner;2.1, the first external screw thread;
2.2, the second internal thread;3, the second thermal insulation cup liner;3.1, the second external screw thread;3.2, convex shoulder;3.3, raised particle;4, thermal insulating material
Material.
Specific implementation mode
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below to the utility model
Specific implementation mode elaborate.Many details are elaborated in the following description in order to fully understand this practicality
It is novel.But the utility model can be much to implement different from other manner described here, those skilled in the art can
To do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public specific reality
Apply the limitation of mode.
Embodiment 1 is as shown in Figure 1, the cast gate sheath assembly, including sprue bush 1, the first thermal insulation cup liner 2, second are protected
Warm cup liner 3 and thermal insulation material 4;Sprue bush 1, the first thermal insulation cup liner 2, the second thermal insulation cup liner 3 are that bosom is sky
The cylindrical structure of pipe;Wherein sprue bush and thermal insulation cup select nichrome combination composite ceramic material;The sprue bush 1 it is interior
Portion upper end inflated diameter is more than lower diameter;The first external screw thread 1.1, first heat preservation is arranged in 1 lower end outside of the sprue bush
The setting of 2 upper end of cup liner and 1.1 matched first internal thread 2.1 of the first external screw thread, that is, the lower end of sprue bush 1 are protected with first
Warm 2 upper end of cup liner is matched realization with the screw thread of the first internal thread 2.1 by the first external screw thread 1.1 and is tightly connected;Described first
The second external screw thread 2.2, upper end setting and the second external screw thread 2.2 of the second thermal insulation cup liner 3 is arranged in 2 lower end of thermal insulation cup liner
The lower end of 3.1 namely first thermal insulation cup liner 2 of matched second internal thread passes through second with the upper end of the second thermal insulation cup liner 3
External screw thread 2.2 is connected and sealed with the second internal thread 3.1;The thermal insulation material 4 is arranged in the first thermal insulation cup liner 2 and second
3 outside of thermal insulation cup liner, is used for molten aluminum to insulation effect.The thermal insulation material 4 can be alumina powder, alumina silicate fibre,
One kind in white alundum powder, micropore haydite, silica gel bonding agent.By the way that muff to be designed to be divided into two parts, to make sprue bush
More convenient with the combination dismounting of thermal insulation cup, avoid influences the defect of production because insulating lining hole is too deep;By by cast gate
Set lower end is designed to external screw thread, and is the matched internal thread of screw thread therewith by the upper design of the first thermal insulation cup liner, to make
The even closer combination of the two, between gap smaller preferably molten aluminum is sealed in inside running channel low-pressure state is small, prevent
Molten aluminum leaks;It is more than the appearance that lower diameter can reduce molten aluminum boiling situation by the inner upper end inflated diameter of sprue bush.
Using process, sprue bush 2 is installed on the central hole location of mold, is connected as one with mold, when molten aluminum injects mould
During tool, flow-induced corrosion is sprue bush rather than mold.The stalk of thermal insulation cup liner lower end and holding furnace connects, and two
Asbestos sealing washer is used between person, by the weight of mold itself, is pressed and sealed the effect for enclosing closing molten aluminum.Institute
State after cast gate sheath assembly installs can continuous online production, lower machine maintenance mold is without replacement, after mold installation, low-pressure machine
Supercharging, molten aluminum is risen to by low-pressure machine holding furnace inside thermal insulation cup injects mold by sprue bush, low after the mold is cooled
Press pressure release, molten aluminum are back in holding furnace, and waiting produces again, and whole process is repeated once for every 5 minutes or so, production process
Middle integral type cast gate casing forms closing running channel with low-pressure machine, prevents molten aluminum from leaking, and completely cuts off with thermal insulation material, ensures temperature of aluminum liquid
Stablize, casting parameter adjustment magnitude is small, and production status is steady, and product qualification rate is high.
Embodiment 2 is additionally provided with convex shoulder 3.2 at the middle part of the second thermal insulation cup liner 3, that is, a circle protrusion, by
Being provided with convex shoulder more in the middle part of second thermal insulation cup liner contributes to the positioning of sprue bush, more convenient to use.
Embodiment 3, as shown in Figure 1, the cast gate sheath assembly, including sprue bush 1, the first thermal insulation cup liner 2, second are protected
Warm cup liner 3 and thermal insulation material 4;Sprue bush 1, the first thermal insulation cup liner 2, the second thermal insulation cup liner 3 are that bosom is sky
The cylindrical structure of pipe;Wherein sprue bush and thermal insulation cup select nichrome combination composite ceramic material;The sprue bush 1 it is interior
Portion upper end inflated diameter is more than lower diameter;The first external screw thread 1.1, first heat preservation is arranged in 1 lower end outside of the sprue bush
The setting of 2 upper end of cup liner and 1.1 matched first internal thread 2.1 of the first external screw thread, that is, the lower end of sprue bush 1 are protected with first
Warm 2 upper end of cup liner is matched realization with the screw thread of the first internal thread 2.1 by the first external screw thread 1.1 and is tightly connected;Described first
The second external screw thread 2.2, upper end setting and the second external screw thread 2.2 of the second thermal insulation cup liner 3 is arranged in 2 lower end of thermal insulation cup liner
The lower end of 3.1 namely first thermal insulation cup liner 2 of matched second internal thread passes through second with the upper end of the second thermal insulation cup liner 3
External screw thread 2.2 is connected and sealed with the second internal thread 3.1;The thermal insulation material 4 is arranged in the first thermal insulation cup liner 2 and second
3 outside of thermal insulation cup liner, is used for molten aluminum to insulation effect.Further, the boring upper end of the second thermal insulation cup liner 3 is straight
Diameter is less than lower end diameter.The outside of first thermal insulation cup liner 2 and the second thermal insulation cup liner 3 is provided with raised particle 3.2, for making
Thermal insulation material can be even closer be attached on the first thermal insulation cup liner 2 and the second thermal insulation cup liner 3 and play insulation effect, prevent
It only generates gap or falls off.By the way that muff to be designed to be divided into two parts, to make the combination of sprue bush and thermal insulation cup dismantle
It is more convenient;By the way that sprue bush lower end is designed to external screw thread, and it is screw thread therewith by the upper design of the first thermal insulation cup liner
Matched internal thread, to both make even closer combination, between gap smaller it is small preferably by molten aluminum in low-pressure state
It is sealed in inside running channel, prevents molten aluminum from leaking;Aluminium can be reduced by being more than lower diameter by the inner upper end inflated diameter of sprue bush
The appearance of liquid boiling situation;Contribute to the positioning of sprue bush by being provided with convex shoulder more in the middle part of the second thermal insulation cup liner;
Raised particle is set by the outside of the first thermal insulation cup liner and the second thermal insulation cup liner to easily facilitate thermal insulation material the
The attachment of lining in one thermal insulation cup liner and the second thermal insulation cup;Since insulating lining hole depth is long, influence to produce and process efficiency, therefore
Two bodies or trimeric structure are designed as to improve processing efficiency.
Claims (4)
1. a kind of cast gate sheath assembly, it is characterised in that:Including sprue bush, the first thermal insulation cup liner, the second thermal insulation cup liner and
Thermal insulation material;The inner upper end inflated diameter of the sprue bush is more than lower diameter;The sprue bush lower end outside setting first
External screw thread, the first thermal insulation cup liner upper end setting and matched first internal thread of the first external screw thread;First thermal insulation cup
The second external screw thread, upper end setting and the spiral shell in the second external screw thread matched second of the second thermal insulation cup liner is arranged in liner lower end
Line;The thermal insulation material is arranged on the outside of the first thermal insulation cup liner and the second thermal insulation cup liner.
2. cast gate sheath assembly according to claim 1, it is characterised in that:It is also set up in the middle part of the second thermal insulation cup liner
There is convex shoulder.
3. cast gate sheath assembly according to claim 2, it is characterised in that:The boring upper end of second thermal insulation cup liner
Diameter is less than lower end diameter.
4. cast gate sheath assembly according to claim 3, it is characterised in that:In first thermal insulation cup liner and the second thermal insulation cup
Raised particle is provided on the outside of lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443047.9U CN207996984U (en) | 2018-03-29 | 2018-03-29 | A kind of cast gate sheath assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443047.9U CN207996984U (en) | 2018-03-29 | 2018-03-29 | A kind of cast gate sheath assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207996984U true CN207996984U (en) | 2018-10-23 |
Family
ID=63840222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820443047.9U Active CN207996984U (en) | 2018-03-29 | 2018-03-29 | A kind of cast gate sheath assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207996984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014584A (en) * | 2019-12-07 | 2020-04-17 | 王德忠 | Pouring gate structure of metal casting pouring system |
| CN113732268A (en) * | 2021-11-04 | 2021-12-03 | 中铁建电气化局集团轨道交通器材有限公司 | Low-pressure die for positioning support body |
-
2018
- 2018-03-29 CN CN201820443047.9U patent/CN207996984U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111014584A (en) * | 2019-12-07 | 2020-04-17 | 王德忠 | Pouring gate structure of metal casting pouring system |
| CN113732268A (en) * | 2021-11-04 | 2021-12-03 | 中铁建电气化局集团轨道交通器材有限公司 | Low-pressure die for positioning support body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207996984U (en) | A kind of cast gate sheath assembly | |
| CN105750499B (en) | A kind of method using profile-followed chill and forced convertion to investment-casting Local cooling | |
| CN104607595A (en) | Large-scale casting device for aluminum-water utensil | |
| CN104625017B (en) | A kind of dual chamber holding furnace cast continuously for low pressure and operational approach | |
| CN207057570U (en) | A kind of pouring gypsum casting mold for having built-in radiating tube | |
| CN204770502U (en) | Water -cooling hub die | |
| CN204700243U (en) | A kind of aluminum alloy gravity casting insulated feeder | |
| CN206605025U (en) | A kind of double heat insulation mould devices of wheel hub | |
| CN207071670U (en) | A kind of big part forming machine of crucible furnace formula compression solidification aluminium alloy | |
| CN201537678U (en) | Vacuum heat insulation central gate bushing | |
| CN103252485B (en) | Steel ladle and method for using steel ladle to reduce heat absorption in pouring process | |
| CN207057591U (en) | A kind of pick housing of pneumatic pick mold | |
| CN209110103U (en) | A kind of double riser molding sand casting dies of station column | |
| CN203235946U (en) | Sprue bush for low-pressure casting | |
| CN207071669U (en) | A kind of crucible furnace formula compression solidification aluminium alloy smallclothes forming machine | |
| CN202591561U (en) | Novel steel ingot water-cooling pouring mould | |
| CN202239572U (en) | Injection piston for pressure casting | |
| CN207873073U (en) | A kind of thin-wall Mg alloy workpiece die casting molding system | |
| CN206952135U (en) | A kind of sub-sectional cooling process structure hub mold | |
| CN207358142U (en) | A kind of sand mold low pressure casting stalk with heating and heat preserving function | |
| CN207402088U (en) | A kind of piston lower pressure casting device | |
| CN219598055U (en) | Alloy adding device of pressure casting furnace | |
| CN207343735U (en) | A kind of crystallizer of the continuous newly net forming equipment of aluminium alloy | |
| CN104259393A (en) | Casting technology for lead-free brass tap | |
| CN205043087U (en) | Casting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |