CN205732833U - A kind of cup insulation combining shell and sealing structure - Google Patents
A kind of cup insulation combining shell and sealing structure Download PDFInfo
- Publication number
- CN205732833U CN205732833U CN201620529551.1U CN201620529551U CN205732833U CN 205732833 U CN205732833 U CN 205732833U CN 201620529551 U CN201620529551 U CN 201620529551U CN 205732833 U CN205732833 U CN 205732833U
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- shell
- cup
- clay
- muff
- periphery
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Abstract
The utility model discloses a kind of cup insulation combining shell and seal structure, combination shell includes the most through product shell, ingate shell, cross gate shell and cup shell, cup shell is up-small and down-big horn mouth, the lower end of cup shell is positioned in the centre bore of moulding steel plate, and it is filled with asbestos cord between the center bore inner wall of the lower, outer perimeter of cup shell and moulding steel plate, the upper periphery of cup shell is coated with clay-bonded sand, the periphery of clay-bonded sand is filled with dry sand, the lower port of cup shell seals with the upper port of stalk and docks.The upper periphery of cup shell is coated with asbestos pad, and the periphery of asbestos pad is coated with muff, and muff is surrounded by symmetrical two halves and is spliced.Asbestos cord plays sealing and positioning action, asbestos pad and muff and stops the heat at cup to scatter and disappear, and the molten metal in cup can flow back to holding furnace after formed product, saves the consumption of molten metal.
Description
Technical field
This utility model relates to the shell structure of a kind of model casting, particularly to a kind of cup insulation combining shell
And sealing structure, belong to metal casting technique field.
Background technology
Model casting is also known as lost-wax casting, and the production process of lost-wax casting is to coat several layers of refractory material at wax pattern surface,
After its dry through, molten the going of wax-pattern therein is made shell, then shapes through roasting, then pour into a mould, after cooling
Obtain foundry goods.Foundry goods owing to obtaining has higher dimensional accuracy and surface smoothness, therefore also known as precision-investment casting.
Low pressure casting is to make liquid metal filling die cavity under pressure, to form a kind of method of foundry goods.Low die casting
The technical process made is as follows: being passed through dry compressed air in airtight holding furnace, the molten metal in holding furnace is in gas pressure
Rise along stalk under power, enter die cavity by cast gate, keep the pressure of insulation furnace gas until the molten metal in die cavity is complete
Full solidification forms foundry goods.Then release insulation furnace pressure, make not solidified molten metal in stalk flow back to holding furnace, then release
Casting mold top hold down gag pressure, takes out foundry goods.
Fired mold precision casting type shell is generally manually to pour into a mould under gravity state, but, wall complicated for structure
The bigger foundry goods of thick great disparity pours into a mould under gravity state that the product often internal flaw obtained is more, and mechanical property is the most up to standard,
And solve the effective method of this problem and exactly precision investment casting mould case is placed on low-pressure die casting plant under low voltage situations
Cast.Because liquid metal filling is steady during low pressure casting, can reduce the defects such as oxide slag inclusion, foundry goods solidifies under stress, so
Dense structure's mechanical property is high.
When using the method casting fine casting shell of low pressure casting, first have to solve the interface between shell and air injection machine
Problem, existing method is to use phenolic sand molding, shell is placed in sandbox and is then coated with completely by shell with resin sand, then
The sandbox made is placed in low-pressure casting machine work platforms pour into a mould, but the method has a disadvantage in that (1) ordinary circumstance
The shell of lower investment pattern precision casting is to pour into a mould when shell itself has higher temperature, thus can ensure that filling of thin-wall shell
Type.And if shell cladding is carried out low-pressure casting by employing resin sand, shell is necessary for being that room ambient conditions just can be carried out, such one
Coming, investment pattern precision casting can the advantage of forming thin-walled part just be obliterated.(2) this technique needs to consume substantial amounts of resin sand, resin sand valency
Lattice costly, add production cost.(3) resin sand solidification needs the longer time, affects production efficiency.(4) aluminium alloy warp
Can be heated by resin when crossing resin sand, produce a large amount of gas, gas is understood some and is had little time to discharge and enter after entering die cavity
Foundry goods, causes being formed gas hole defect in foundry goods.(5) near cast gate, resin sand easily makes resin consumption through long baking
Totally thus cause molding sand defeated and dispersed, defeated and dispersed after molding sand can through stalk enter low-pressure casting thermal insulation furnace, again cast time stove
Interior molding sand can enter the cast-internal poured into a mould behind, produces the defects such as sand holes in foundry goods.
Utility model content
The purpose of this utility model is, overcomes problems of the prior art, it is provided that a kind of cast gate combining shell
Cup insulation and sealing structure, it is not necessary to using resin sand, reduce the defect such as pore, sand holes, production cost is low.
For solving above technical problem, a kind of cup insulation combining shell of the present utility model and sealing structure, bag
Include the combination shell being positioned in sandbox, described combination shell include the most through product shell, ingate shell,
Cross gate shell and cup shell, described cup shell is up-small and down-big horn mouth, the lower end of described cup shell
Be positioned in the centre bore of moulding steel plate, and the center bore inner wall of the lower, outer perimeter of described cup shell and described moulding steel plate it
Between be filled with asbestos cord, the upper periphery of described cup shell is coated with clay-bonded sand, and the periphery of described clay-bonded sand is filled with dry
Sand, the lower port of described cup shell seals with the upper port of stalk and docks.
Relative to prior art, this utility model achieves following beneficial effect: can first be placed on flat by moulding steel plate
On whole ground, by combination shell be placed in the centre bore of moulding steel plate and cup shell down；Due in moulding steel plate
Central hole is smaller, and asbestos cord achieves the sealing between cup shell bottom and moulding steel plate centre bore and location, prevents from doing
Sand spills from gap between the two, and the heat conductivity of asbestos cord is low, plays the effect of insulation；The adhesive property of clay-bonded sand
Good, intensity is high, can improve the stability of combination shell, dry sand and asbestos cord be separated, further ensure that dry sand will not be from making
The gap of shape steel plate centre bore leaks into holding furnace, pollutes molten metal.Can be permissible by handling moulding steel plate after moulding success
It is transferred to lift on steel plate by sandbox and combination shell easily.
As improvement of the present utility model, the upper port of described cup shell be connected with the center of cross gate shell and
Being mutually communicated, each termination of described cross gate shell is horizontally outward symmetrically extended, and divides above each termination of described cross gate shell
Be not connected with the lower port of described ingate shell and be mutually communicated, the upper port of each described ingate shell respectively with described product
The lower surface of product shell connects and is mutually communicated.Molten metal rises along stalk, enters combination from the lower port of cup shell
In the die cavity of shell, and the most successively by cup shell, cross gate shell, ingate shell and the die cavity of product shell
Being full of, then the molten metal of product type intracavity solidifies under stress；Then the gas-phase space of holding furnace is exitted, stalk
And the non-frozen metal liquid stream of top returns in holding furnace.
As improvement of the present utility model, the upper periphery of described cup shell is coated with asbestos pad, described asbestos pad
Periphery be coated with muff, described muff be covered over described clay-bonded sand.Cup shell top arranges asbestos pad
The heat that can stop cup shell with muff scatters and disappears, it is to avoid the molten metal solidification in cup, it is ensured that product type intracavity
Foundry goods molding after, the molten metal in cup can flow back to holding furnace, to save the consumption of molten metal.
As improvement of the present utility model, described muff is surrounded by symmetrical two halves and is spliced.By asbestos pad
After being wrapped in the periphery of cup shell, muff is stuck in opposite directions the outside of asbestos pad, then by bolt through locking ear by both sides
Muff couple together, convenience quick for installation.
As improvement of the present utility model, the top of described clay-bonded sand is filled in the lower section of described cross gate shell, described
The underfill of clay-bonded sand is above described moulding steel plate.Can the most stabilized combination shell.
Accompanying drawing explanation
Being described in further detail this utility model with detailed description of the invention below in conjunction with the accompanying drawings, accompanying drawing only provides ginseng
Examine and use is described, being not used to limit this utility model.
Fig. 1 is the structural representation of combination shell.
Fig. 2 is the axonometric chart before muff surrounds.
Fig. 3 is the axonometric chart after muff surrounds.
Fig. 4 is cup insulation and the installation diagram of sealing structure of this utility model combination shell.
In figure: 1. combination shell；1a. product shell；1b. ingate shell；1c. cross gate shell；1d. cast gate cup type
Shell；2. moulding steel plate；3. stalk；3a. stalk flange；4. sealing gasket；5. asbestos cord；6. asbestos pad；7. muff；7a.
Lock ear；8. clay-bonded sand；9. dry sand.
Detailed description of the invention
As shown in Figures 1 to 4, cup insulation and the sealing structure of this utility model combination shell includes being positioned in sandbox
Combination shell 1, combination shell 1 includes the most through product shell 1a, ingate shell 1b, cross gate shell
1c and cup shell 1d, cup shell 1d are up-small and down-big horn mouth, and the lower end of cup shell 1d is positioned at moulding steel
In the centre bore of plate 2, and it is filled with asbestos cord between the lower, outer perimeter of cup shell 1d and the center bore inner wall of moulding steel plate 2
5, the upper periphery of cup shell 1d is coated with clay-bonded sand 8, and the periphery of clay-bonded sand 8 is filled with dry sand 9, cup shell 1d's
Lower port seals with the upper port of stalk 3 and docks.
First moulding steel plate 2 is placed on smooth ground, by combination shell 1 be placed in the centre bore of moulding steel plate 2 and
Cup shell 1d is down；Owing to the centre bore of moulding steel plate 2 is smaller, asbestos cord 5 achieve cup shell 1d bottom with
Sealing between moulding steel plate centre bore and location, prevent dry sand 9 from spilling from gap between the two, and the leading of asbestos cord 5
Hot coefficient is low, plays the effect of insulation；The adhesive property of clay-bonded sand 8 is good, and intensity is high, can improve the stability of combination shell 1,
Dry sand 9 is separated with asbestos cord 5, further ensures that dry sand 9 will not leak into holding furnace from the gap of moulding steel plate centre bore, dirty
Dye molten metal.The upper end of stalk 3 is provided with stalk flange 3a, logical between stalk flange 3a and the lower surface of moulding steel plate 2
Cross sealing gasket 4 to realize sealing.Can pass through handling moulding steel plate 2 after moulding success can be easily by sandbox and combination shell
1 is transferred to lift on steel plate.
The upper port of cup shell 1d is connected with the center of cross gate shell 1c and is mutually communicated, cross gate shell 1c
Each termination be horizontally outward symmetrically extended, above each termination of cross gate shell 1c respectively with the lower port of ingate shell 1b even
Connecing and be mutually communicated, the upper port of each ingate shell 1b lower surface with product shell 1a respectively is connected and is mutually communicated.Gold
Belong to liquid to rise along stalk 3, enter in the die cavity of combination shell 1 from the lower port of cup shell 1d, and the most successively
The die cavity of cup shell 1d, cross gate shell 1c, ingate shell 1b and product shell 1a is full of, then product type intracavity
Molten metal solidify under stress；Then the gas-phase space of holding furnace is exitted, stalk 3 and top thereof do not solidify gold
Belong to liquid stream to return in holding furnace.
The upper periphery of cup shell 1d is coated with asbestos pad 6, and the periphery of asbestos pad 6 is coated with muff 7, muff
7 be covered over clay-bonded sand 8.Cup shell 1d top arranges asbestos pad 6 and muff 7 can stop cup shell 1d
Heat scatter and disappear, it is to avoid molten metal in cup solidification, it is ensured that after the foundry goods molding of product type intracavity, the metal in cup
Liquid can flow back to holding furnace, to save the consumption of molten metal.
Muff 7 is surrounded by symmetrical two halves and is spliced.Asbestos pad 6 is wrapped in the periphery of cup shell 1d
After, muff 7 is stuck in opposite directions the outside of asbestos pad 6, then the muff 7 of both sides is coupled together through lock ear 7a by bolt,
Convenience quick for installation.
The top of clay-bonded sand 8 is filled in the lower section of cross gate shell 1c, and the underfill of clay-bonded sand 8 is at moulding steel plate 2
Top.Can the most stabilized combination shell 1.
The foregoing is only the preferable possible embodiments of this utility model, non-therefore limit to patent of the present utility model
Protection domain.In addition to the implementation, this utility model can also have other embodiments.All employing equivalents or equivalence become
Change the technical scheme of formation, all fall within the protection domain of this utility model requirement.
Claims (5)
1. combine the cup insulation of shell and seal a structure, including the combination shell being positioned in sandbox, described combined
Shell includes the most through product shell, ingate shell, cross gate shell and cup shell, described cup
Shell is up-small and down-big horn mouth, it is characterized in that: the lower end of described cup shell is positioned in the centre bore of moulding steel plate, and
It is filled with asbestos cord, described cup between lower, outer perimeter and the center bore inner wall of described moulding steel plate of described cup shell
The upper periphery of shell is coated with clay-bonded sand, and the periphery of described clay-bonded sand is filled with dry sand, the lower port of described cup shell
Seal with the upper port of stalk and dock.
The cup insulation of combination shell the most according to claim 1 and sealing structure, is characterized in that, described cast gate cup type
The upper port of shell is connected with the center of cross gate shell and is mutually communicated, and each termination of described cross gate shell is the most right
Claiming to extend, above each termination of described cross gate shell, lower port with described ingate shell is connected and is mutually communicated respectively,
The upper port of each described ingate shell lower surface with described product shell respectively is connected and is mutually communicated.
The cup insulation of combination shell the most according to claim 1 and sealing structure, is characterized in that, described cast gate cup type
The upper periphery of shell is coated with asbestos pad, and the periphery of described asbestos pad is coated with muff, being covered over of described muff
Described clay-bonded sand.
Combination shell the most according to claim 3 cup insulation and seal structure, it is characterized in that, described muff by
Symmetrical two halves surround and are spliced.
The cup insulation of combination shell the most according to claim 1 and sealing structure, is characterized in that, described clay-bonded sand
Top is filled in the lower section of described cross gate shell, and the underfill of described clay-bonded sand is above described moulding steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529551.1U CN205732833U (en) | 2016-06-03 | 2016-06-03 | A kind of cup insulation combining shell and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620529551.1U CN205732833U (en) | 2016-06-03 | 2016-06-03 | A kind of cup insulation combining shell and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205732833U true CN205732833U (en) | 2016-11-30 |
Family
ID=57360171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620529551.1U Expired - Fee Related CN205732833U (en) | 2016-06-03 | 2016-06-03 | A kind of cup insulation combining shell and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205732833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769563A (en) * | 2016-12-12 | 2017-05-31 | 中国科学院武汉岩土力学研究所 | The Triaxial tester and its method of soil body Frozen-thawed cycled dynamic load coupling |
| CN111906246A (en) * | 2020-07-02 | 2020-11-10 | 中国航发贵州红林航空动力控制科技有限公司 | Casting system and manufacturing method and pouring method thereof |
-
2016
- 2016-06-03 CN CN201620529551.1U patent/CN205732833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769563A (en) * | 2016-12-12 | 2017-05-31 | 中国科学院武汉岩土力学研究所 | The Triaxial tester and its method of soil body Frozen-thawed cycled dynamic load coupling |
| CN111906246A (en) * | 2020-07-02 | 2020-11-10 | 中国航发贵州红林航空动力控制科技有限公司 | Casting system and manufacturing method and pouring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225117 9, Feng Ming Road, Fang Xiang Industrial Park, Hanjiang District, Yangzhou, Jiangsu Patentee after: Yangzhou Feng Ming photoelectric New Material Co., Ltd. Address before: 225117 9, Feng Ming Road, Fang Xiang Industrial Park, Hanjiang District, Yangzhou, Jiangsu Patentee before: Yangzhou Feng Ming Metal Products Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20210603 |