CN109332587A - Langaloy butterfly valve body sand mold mould - Google Patents
Langaloy butterfly valve body sand mold mould Download PDFInfo
- Publication number
- CN109332587A CN109332587A CN201811508879.5A CN201811508879A CN109332587A CN 109332587 A CN109332587 A CN 109332587A CN 201811508879 A CN201811508879 A CN 201811508879A CN 109332587 A CN109332587 A CN 109332587A
- 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.)
- Granted
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 35
- 238000004512 die casting Methods 0.000 abstract description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000001816 cooling 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 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention 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 present invention 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 present invention relates to valve manufacture fields, relate in particular to a kind of Langaloy butterfly valve body sand mold mould.
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, and too low cast temperature faces steel
The problem of water flowing difference；
(2) Langaloy requires the compensation of riser higher, needs to have preferable feeding function under the premise of guaranteeing cooling
Energy；
(3) Langaloy is while cooling, temperature sensitive, is easy to produce crackle, so needing core sand and molding sand all has preferably
Deformability, can in casting cooling meat, in time make a concession, guarantee casting not by drawing crack.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind can increase deformability of the core sand in casting, have compared with
The Langaloy butterfly valve body sand mold mould of good casting quality.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of Langaloy butterfly valve body sand
Pattern tool, including valve body upper mold, valve body lower die and core sand, the core sand are molded as by core sand, and 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 for forming
The forming blocks of 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.
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 invention has the benefit that
The present invention considers the intensity and elasticity of core sand, and the trapezoidal elastic compensating ditch in cricoid cross section is opened up on core sand
Slot, can increase deformability of the core sand in casting, reduce casting because of the crackle that core sand deformability not enough generates, make casting to
It is interior that there is better shrinkage, it is ensured that will not be because of feeding not enough drawing crack, the die casting when casting cools down after pouring
Langaloy butterfly valve, have preferable casting quality, solve heavy caliber Langaloy butterfly valve body casting problem.
In addition, forming blocks and through slot are designed to positive prismatic table shape by the present invention, facilitate modulus, it is ensured that core sand has good
Deformability and stability, having intensity and elasticity using the core sand of forming blocks production is suitable for that cast-internal rigidity is preferable, simultaneously
Sand inside elastic groove can also solidify in molding together, in high volume can reliably produce.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the three-dimensional section view of core sand in one embodiment of the invention.
Fig. 3 is the usage state diagram of one embodiment of the 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 one embodiment of the invention.
Fig. 6 is the schematic diagram of core sand formed valve body blank in one embodiment of the 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 next below with reference to the accompanying drawings that the present invention will be described in detail.It should be noted that in the absence of conflict, in the application
Embodiment and embodiment in feature can be combined with each other.
Referring to Fig. 1 to Fig. 6.
Langaloy butterfly valve body sand mold mould of the present invention, including valve body upper mold 01, valve body lower die 02 and core sand 03,
The core sand 03 is molded as by core sand, and the core sand mould includes core sand external mold 1, is provided with from the upper end downwards on the core sand 03
The elastic compensating groove 031 of extension, the core sand mould further include the forming blocks 2 for forming the elastic compensating groove 031；
The forming blocks 2 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 2
Slot 21, and the through slot 21 and the forming blocks 2 are coaxially arranged, the cross section of the through slot 21 is transversal with the forming blocks 2
Face 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 forming blocks 2 inwardly
It is coaxially arranged with the core sand external mold 1, the trapezoidal elasticity in cricoid cross section is formed on the core sand 03 with this and is mended
Repay groove 031.
The present invention considers the intensity and elasticity of core sand, and the trapezoidal elastic compensating in cricoid cross section is opened up on core sand
Groove can increase deformability of the core sand in casting, reduce casting because the crackle that core sand deformability not enough generates, makes casting
Inwardly there is better shrinkage, it is ensured that will not be because of feeding not enough drawing crack, in addition, this hair when casting cools down after pouring
It is bright that forming blocks and through slot are designed to positive prismatic table shape, 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 meeting shadow again
Ring elasticity；
(3) after emptying, the sand inside core sand is loose condition (of surface), it is possible to be washed away in casting by molten steel, bring into casting, cause
Burning into sand influences casting quality；
And the present invention makes core sand using forming blocks, can avoid above listed all problems, and the core sand made has by force
Degree and elasticity are suitable for that cast-internal rigidity is preferable, while the sand inside elastic groove can also solidify in molding together, can be large quantities of
The reliable production of amount.
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 present invention is that valve body lies low casting, and dead head is arranged in valve body upper mold, and rubbish and slag inclusion can be made to float up to riser position
It sets 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.In implementing the present invention, it may, invention
People's 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 restrict the invention, this field only for explanation
Technical staff can make various modifications or variation according to it, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
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 |
|---|---|---|---|
| CN201811508879.5A CN109332587B (en) | 2018-12-11 | 2018-12-11 | Sand mould for high nickel alloy butterfly valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508879.5A CN109332587B (en) | 2018-12-11 | 2018-12-11 | Sand mould for high nickel alloy butterfly valve body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332587A true CN109332587A (en) | 2019-02-15 |
| CN109332587B CN109332587B (en) | 2024-03-08 |
Family
ID=65304184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508879.5A Active CN109332587B (en) | 2018-12-11 | 2018-12-11 | Sand mould for high nickel alloy butterfly valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109332587B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331083A (en) * | 2020-04-08 | 2020-06-26 | 厦门市佳嘉达机械有限公司 | A mould for preventing foundry goods fracture |
| CN112387938A (en) * | 2020-09-17 | 2021-02-23 | 南通冠峰铸造有限公司 | Casting process of 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 |
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| CN103433434A (en) * | 2013-09-02 | 2013-12-11 | 山东墨龙石油机械股份有限公司 | Method for casting valve body of flat gate valve |
| KR101382643B1 (en) * | 2013-03-15 | 2014-04-07 | 강성태 | Mold device of the main controls for hydraulic valve block |
| CN106513590A (en) * | 2017-01-09 | 2017-03-22 | 浙江欧冶达机械制造有限公司 | High-performance butterfly valve casting |
| CN107234213A (en) * | 2017-07-25 | 2017-10-10 | 苏州市鑫渭阀门有限公司 | The ceramic precision casting method of the high pressure stainless steel pump housing |
| CN107884258A (en) * | 2017-11-24 | 2018-04-06 | 四川共享铸造有限公司 | A kind of sand core strength test block mould |
| CN108339944A (en) * | 2018-04-27 | 2018-07-31 | 遵义江星机械模具有限公司 | For the molding casting mould of water pump vane |
| CN209157053U (en) * | 2018-12-11 | 2019-07-26 | 无锡斯考尔自动控制设备有限公司 | A kind of Langaloy butterfly valve body sand mold mould |
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2018
- 2018-12-11 CN CN201811508879.5A patent/CN109332587B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974774A (en) * | 2012-12-10 | 2013-03-20 | 衡阳风顺车桥有限公司 | Production process of irregular ring type casting |
| KR101382643B1 (en) * | 2013-03-15 | 2014-04-07 | 강성태 | Mold device of the main controls for hydraulic valve block |
| CN103433434A (en) * | 2013-09-02 | 2013-12-11 | 山东墨龙石油机械股份有限公司 | Method for casting valve body of flat gate valve |
| CN106513590A (en) * | 2017-01-09 | 2017-03-22 | 浙江欧冶达机械制造有限公司 | High-performance butterfly valve casting |
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| CN107884258A (en) * | 2017-11-24 | 2018-04-06 | 四川共享铸造有限公司 | A kind of sand core strength test block mould |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331083A (en) * | 2020-04-08 | 2020-06-26 | 厦门市佳嘉达机械有限公司 | A mould for preventing foundry goods fracture |
| CN111331083B (en) * | 2020-04-08 | 2021-01-26 | 厦门市佳嘉达机械有限公司 | A mould for preventing foundry goods fracture |
| CN112387938A (en) * | 2020-09-17 | 2021-02-23 | 南通冠峰铸造有限公司 | Casting process of 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109332587B (en) | 2024-03-08 |
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