CN209157053U - A kind of Langaloy butterfly valve body sand mold mould - Google Patents
A kind of Langaloy butterfly valve body sand mold mould Download PDFInfo
- Publication number
- CN209157053U CN209157053U CN201822070822.3U CN201822070822U CN209157053U CN 209157053 U CN209157053 U CN 209157053U CN 201822070822 U CN201822070822 U CN 201822070822U CN 209157053 U CN209157053 U CN 209157053U
- Authority
- CN
- China
- Prior art keywords
- core sand
- valve body
- sand
- forming blocks
- langaloy
- 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.)
- Withdrawn - After Issue
Links
- 239000004576 sand Substances 0.000 title claims abstract description 105
- 238000005336 cracking Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 36
- 238000004512 die casting Methods 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000035553 feeding performance Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of Langaloy butterfly valve body sand mold moulds; including valve body upper mold, valve body lower die and core sand; the core sand is molded as by core sand; the core sand mould includes core sand external mold; the elastic compensating groove extended downwards from the upper end is provided on the core sand, the core sand mould further includes the forming blocks for forming the elastic compensating groove；The forming blocks small big positive prismatic table shape under being in, the through slot in up-small and down-big positive prismatic table shape is provided in the forming blocks, and the through slot and the forming blocks are coaxially arranged, the similar regular polygon that the cross section of the through slot is parallel to each other to the cross section of the forming blocks for each side.A possibility that the utility model can increase deformability of the core sand in casting, and making casting inwardly has better shrinkage, reduce drawing crack inadequate because of feeding when casting cools down after pouring has preferable casting quality using the casting of this die casting.
Description
Technical field
The utility model relates to valve manufacture fields, relate in particular to a kind of Langaloy butterfly valve body sand mould
Tool.
Background technique
Large-diameter butterfly valve belongs to thin wall component, and valve body bore is big, and wall thickness is thin, is unfavorable for the MOLTEN STEEL FLOW and benefit of high temperature
Contracting, and valve belongs to pressure-bearing class part, has higher sealing performance requirement to casting, so the foundry engieering one of large-diameter butterfly valve
Directly a casting problem, and nickel-base alloy to cast temperature, cooling velocity, riser compensation, sand mold deformability etc. have compared with
High requirement is easy to appear stomata and crackle, is difficult to meet requirement in the butterfly valve body for Langaloy of casting.
Langaloy butterfly valve body has following difficult point when casting:
(1) Langaloy is very sensitive to cast temperature, and excessively high cast temperature faces heat dissipation problem, too low cast temperature face
Face the problem of fluidity molten steel difference；
(2) Langaloy requires the compensation of riser higher, needs to have preferable feeding under the premise of guaranteeing cooling
Function；
(3) Langaloy is while cooling, temperature sensitive, is easy to produce crackle, so core sand and molding sand is needed all to have
Preferable deformability can make a concession in time in casting cooling meat, guarantee casting not by drawing crack.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can increase deformability of the core sand in casting, has
There is the Langaloy butterfly valve body sand mold mould of preferable casting quality.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of Langaloy butterfly valve body
It is molded as with sand mold mould, including valve body upper mold, valve body lower die and core sand, the core sand by core sand, the core sand mould includes
Core sand external mold is provided with the elastic compensating groove extended downwards from the upper end on the core sand, and the core sand mould further includes being used for
Form the forming blocks of the elastic compensating groove；
The forming blocks small big positive prismatic table shape under being in is provided in up-small and down-big positive prismatic table shape in the forming blocks
Through slot, and the through slot and the forming blocks are coaxially arranged, the cross section of the cross section of the through slot and the forming blocks is each
While the similar regular polygon being parallel to each other；
When making the core sand, the forming blocks lower end is embedded to the upper end of the core sand inwardly, and the forming blocks with
The core sand external mold is coaxially arranged, forms the trapezoidal elastic compensating ditch in cricoid cross section on the core sand with this
Slot.
Further, the lower end of the forming blocks is provided with leading to described for multiple circumferentially-spaced distributions along the forming blocks
The U-shaped breach of slot connection.
Further, the cracking strip that the outer peripheral surface of the core sand is equipped with multiple circumferentially-spaced distributions along the core sand forms
Slot, and the cracking strip forming tank is in bar shaped and the circumferential direction for being parallel to the core sand.
Further, the lower end surface of the core sand is provided with multiple gas vents being connected to the elastic compensating groove.
Further, the dead head of the Langaloy butterfly valve body sand mold mould is arranged in the valve body upper mold.
Further, the cross section of the forming blocks is octagon.
The utility model has the following beneficial effects:
The utility model considers the intensity and elasticity of core sand, and the trapezoidal elasticity in cricoid cross section is opened up on core sand
Groove is compensated, deformability of the core sand in casting can be increased, reduces casting because the crackle that core sand deformability not enough generates, makes
Casting inwardly has better shrinkage, it is ensured that will not be because of feeding not enough drawing crack, the mould when casting cools down after pouring
Have the Langaloy butterfly valve of casting, there is preferable casting quality, the butterfly valve body casting for solving heavy caliber Langaloy is difficult
Topic.
In addition, forming blocks and through slot are designed to positive prismatic table shape by the utility model, facilitate modulus, it is ensured that core sand has
Good deformability and stability have intensity using the core sand of forming blocks production and elasticity are suitable for, and cast-internal rigidity is preferable,
The sand inside elastic groove can also solidify in molding together simultaneously, in high volume can reliably produce.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Fig. 2 is the three-dimensional section view of core sand in an embodiment of the present invention.
Fig. 3 is the usage state diagram of an embodiment of the present invention core sand mo(u)ld.
Fig. 4 is the structural exploded view of Fig. 3.
Fig. 5 is the schematic perspective view of forming blocks in an embodiment of the present invention.
Fig. 6 is the schematic diagram of core sand formed valve body blank in an embodiment of the present invention.
The label of each component in attached drawing are as follows: 01 valve body upper mold, 02 valve body lower die, 03 core sand, 031 elastic compensating groove, 032
Positioning column, 033 location hole, 034 cracking strip forming tank, 035 gas vent, 04 valve body blank, 1 core sand external mold, 2 forming blocks, 21 lead to
Slot, 22 U-shaped breach.
Specific embodiment
It is described in detail the utility model below with reference to the accompanying drawings.It should be noted that in the absence of conflict, this Shen
Please in embodiment and embodiment in feature can be combined with each other.
Referring to Fig. 1 to Fig. 6.
The utility model Langaloy butterfly valve body sand mold mould, including valve body upper mold 01, valve body lower die 02 and core
Sand 03, the core sand 03 are molded as by core sand, and the core sand mould includes core sand external mold 1, are provided on the core sand 03 from the upper end
The elastic compensating groove 031 extended downwards, the core sand mould further include the molding for forming the elastic compensating groove 031
Block 2；
The forming blocks 2 small big positive prismatic table shape under being in is provided in up-small and down-big positive prismatic table shape in the forming blocks 2
Through slot 21, and the through slot 21 and the forming blocks 2 are coaxially arranged, the cross section of the through slot 21 and the forming blocks 2
Cross section is the similar regular polygon that each side is parallel to each other；
When making the core sand 03,2 lower end of forming blocks is embedded to the upper end of the core sand 03, and the molding inwardly
Block 2 and the core sand external mold 1 are coaxially arranged, form the trapezoidal elasticity in cricoid cross section on the core sand 03 with this
Compensate groove 031.
The utility model considers the intensity and elasticity of core sand, and the trapezoidal elasticity in cricoid cross section is opened up on core sand
Groove is compensated, deformability of the core sand in casting can be increased, reduces casting because the crackle that core sand deformability not enough generates, makes
Casting inwardly has better shrinkage, it is ensured that casting after pouring cool down when will not because feeding not enough and drawing crack, in addition,
Forming blocks and through slot are designed to positive prismatic table shape by the utility model, facilitate modulus, it is ensured that core sand has good deformability
And stability.
Conventional method such as needs core sand to have preferable shrinkage, it is common practice that by core when casting particulate metal
It after sand is carried out, will be emptied among core sand with tool, convenient for there is yielding space, such way can increase core to a certain extent
The deformability of sand, reduce casting while cooling by drawing crack a possibility that, but have the following drawbacks in this way:
(1) it is emptied manually again after forming, the intensity of core sand may be influenced, be easy to cause core sand broken；
(2) extent control emptied is bad, empties too much, is easy to keep its rigidity inadequate, casting mutability, empties very little again
It will affect elasticity；
(3) after emptying, the sand inside core sand is loose condition (of surface), it is possible to it is washed away, brings into casting by molten steel in casting,
Burning into sand is caused, casting quality is influenced；
And the utility model makes core sand using forming blocks, can avoid above listed all problems, and the core made
Sand has intensity and elasticity is suitable for, and cast-internal rigidity is preferable, while the sand inside elastic groove can also be consolidated in molding together
Change, in high volume can reliably produce.
In one embodiment, the lower end of the forming blocks 2 be provided with multiple circumferentially-spaced distributions along the forming blocks 2 with
The U-shaped breach 22 that the through slot 21 is connected to.It designs in this way, the reinforcing rib (sand i.e. in the space of U-shaped breach can be increased to core sand
Son), preferably guarantee its intensity, guarantees that it is not easy loosely.Preferably, multiple U-shaped breach are uniformly distributed, and effect is more preferable.
In one embodiment, the outer peripheral surface of the core sand 03 is equipped with the anti-of multiple circumferentially-spaced distributions along the core sand 03
Muscle forming tank 034 is split, and the cracking strip forming tank 034 is in bar shaped and the circumferential direction for being parallel to the core sand 03.Because of heavy caliber
Butterfly valve belongs to thin-walled parts, and Langaloy has biggish requirement to feeding again, can be in casting by cracking strip forming tank
Multiple tracks cracking strip is formed on wall can effectively reduce crackle in this way, there is cracking strip support in inside after casting cast molding
Occur, improves casting quality.Preferably, multiple cracking strip forming tanks are uniformly distributed, and effect is more preferable.
In one embodiment, the dead head of the Langaloy butterfly valve body sand mold mould is arranged in the valve body upper mold
On 01.The utility model is that valve body lies low casting, and dead head is arranged in valve body upper mold, rubbish and slag inclusion can be made to float up to and emitted
Mouth position and upper flange machining allowance position, it will there is preferable Internal Quality of Cast, better feeding performance is provided.
In one embodiment, the lower end surface of the core sand 03 is provided with multiple gas vents being connected to the elastic compensating groove
035.It designs in this way, molten steel can be allowed preferably to flow, guarantee the abundant flowing of casting molten steel.
In one embodiment, the cross section of the forming blocks 2 is octagon.During implementing the utility model,
Utility model people discovery design, compensation effect in this way is more preferable.
In one embodiment, the upper surface center of the core sand 03 has positioning column 032, the lower end surface side of the core sand 03
Edge is provided with location hole 033.It designs in this way, mold has multiple positioning, it is ensured that casting die joint is without obvious lapping defect.Core sand external mold one
As be divided into up and down two parts, be easy demoulding.
It should be understood that example as described herein and embodiment are not intended to limit the utility model only for explanation, this
Field technical staff can make various modifications or variation according to it, within the spirit and principle of the utility model, made
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of Langaloy butterfly valve body sand mold mould, including valve body upper mold, valve body lower die and core sand, the core sand by
Core sand is molded as, and the core sand mould includes core sand external mold, it is characterised in that: is provided on the core sand from the upper end and is extended downwards
Elastic compensating groove, the core sand mould further includes the forming blocks for forming the elastic compensating groove；
The forming blocks small big positive prismatic table shape under being in is provided in the logical of up-small and down-big positive prismatic table shape in the forming blocks
Slot, and the through slot and the forming blocks are coaxially arranged, the cross section of the cross section of the through slot and the forming blocks is each side
The similar regular polygon being parallel to each other；
When making the core sand, the forming blocks lower end is embedded to the upper end of the core sand inwardly, and the forming blocks with it is described
Core sand external mold is coaxially arranged, forms the trapezoidal elastic compensating groove in cricoid cross section on the core sand with this.
2. Langaloy butterfly valve body sand mold mould according to claim 1, it is characterised in that: under the forming blocks
End is provided with the U-shaped breach of multiple circumferentially-spaced distributions along the forming blocks being connected to the through slot.
3. Langaloy butterfly valve body sand mold mould according to claim 1 or 2, it is characterised in that: the core sand
Outer peripheral surface is equipped with the cracking strip forming tank of multiple circumferentially-spaced distributions along the core sand, and the cracking strip forming tank is in bar shaped
And it is parallel to the circumferential direction of the core sand.
4. Langaloy butterfly valve body sand mold mould according to claim 1 or 2, it is characterised in that: the core sand
Lower end surface is provided with multiple gas vents being connected to the elastic compensating groove.
5. Langaloy butterfly valve body sand mold mould according to claim 1 or 2, it is characterised in that: the nickelic conjunction
The dead head of Kingdee valve body sand mold mould is arranged in the valve body upper mold.
6. Langaloy butterfly valve body sand mold mould according to claim 1 or 2, it is characterised in that: the forming blocks
Cross section be octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070822.3U CN209157053U (en) | 2018-12-11 | 2018-12-11 | A kind of Langaloy butterfly valve body sand mold mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070822.3U CN209157053U (en) | 2018-12-11 | 2018-12-11 | A kind of Langaloy butterfly valve body sand mold mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209157053U true CN209157053U (en) | 2019-07-26 |
Family
ID=67343108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070822.3U Withdrawn - After Issue CN209157053U (en) | 2018-12-11 | 2018-12-11 | A kind of Langaloy butterfly valve body sand mold mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209157053U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332587A (en) * | 2018-12-11 | 2019-02-15 | 无锡斯考尔自动控制设备有限公司 | Langaloy butterfly valve body sand mold mould |
| CN117444257A (en) * | 2023-12-26 | 2024-01-26 | 无锡斯考尔自动控制设备有限公司 | Bearing bracket turning mould of ball valve |
-
2018
- 2018-12-11 CN CN201822070822.3U patent/CN209157053U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332587A (en) * | 2018-12-11 | 2019-02-15 | 无锡斯考尔自动控制设备有限公司 | Langaloy butterfly valve body sand mold mould |
| CN109332587B (en) * | 2018-12-11 | 2024-03-08 | 无锡斯考尔自动控制设备有限公司 | Sand mould for high nickel alloy butterfly valve body |
| CN117444257A (en) * | 2023-12-26 | 2024-01-26 | 无锡斯考尔自动控制设备有限公司 | Bearing bracket turning mould of ball valve |
| CN117444257B (en) * | 2023-12-26 | 2024-02-23 | 无锡斯考尔自动控制设备有限公司 | Bearing bracket turning mould of ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240308 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240308 |