CN106734886A - A kind of method for preventing the formwork cracking during shell processed - Google Patents
A kind of method for preventing the formwork cracking during shell processed Download PDFInfo
- Publication number
- CN106734886A CN106734886A CN201710058279.2A CN201710058279A CN106734886A CN 106734886 A CN106734886 A CN 106734886A CN 201710058279 A CN201710058279 A CN 201710058279A CN 106734886 A CN106734886 A CN 106734886A
- Authority
- CN
- China
- Prior art keywords
- wax
- formwork
- shell
- ceramic rod
- sprue
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- 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
- B22C9/04—Use of lost patterns
- B22C9/043—Removing the consumable pattern
-
- 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
- B22C9/082—Sprues, pouring cups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of method for preventing formwork or module cracking during shell processed, in the methods of the invention by increased ceramic rod, the stress that wax-pattern expansion brings in dewaxing process can be transferred on ceramic rod, easily hanging at the position of ceramic rod is set up simultaneously, so that the position of addition ceramic rod ensure that enough slurries and sand material, the effect of enhancing formwork is reached, the ability for making formwork meet with stresses is improved, it is to avoid it produces cracking.In addition by setting ceramic rod between sprue cup and cross gate or sprue during shell processed, the intensity withstood forces between each running channel and sprue cup can not only be increased, and manipulator is in shell action process processed, during the power part born between sprue cup and cross gate or the junction of sprue is dispersed to ceramic rod, thus effectively prevent due to intensity is too low between sprue cup and cross gate or sprue and the formwork problem of Cracking that causes.
Description
Technical field
The present invention relates to model casting field, more particularly to a kind of method for preventing the formwork cracking during shell processed.
Background technology
During the entire process of model casting production, shell processed is one of main production process, and formwork is generally required and passed through
It is stained with slurry and drenches sand and successively prepare, the preparation of general formwork is required to several layers of or even ten several layers of, therefore shell process period processed is more long,
Formwork needs to remove formwork inside wax material by dewaxing after the completion of preparing, and can obtain for casting and the mould with cavity
Shell.
In actual production process, formwork in dewaxing process due to wax material expanded by heating, when formwork local location intensity
It is relatively low cannot bear wax-pattern expansion bring stress when, formwork can be cracking (cracking) in the region of low intensity, crackle
The workload, the reduction yield rate that occur not only to complete being mingled with of postemphasis part in formwork casting, increasing subsequent handling, more
Having can notably run away, so as to bring huge economic loss and influence production safety.In addition during shell processed (especially
During the formwork that preparation group tree is complicated, part is heavier) occur because module sprue cup and running channel junction insufficient strength occur mould
Shell cracking or the phenomenon of breakage, not only waste manpower and materials, while also bringing huge economic loss.
The content of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement, there is provided one kind prevents the mould during shell processed
The method of shell cracking, its intensity that can improve formwork corresponding site endurance, the phenomenon for preventing formwork from ftractureing.
The technical solution adopted in the present invention is as follows：
A kind of method for preventing the formwork cracking during shell processed, comprises the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and add
Gu；
4th step：After the 3rd step is to wax mould coating, pouring sand to the specified number of plies, at the wax pattern surface low-intensity position
Fixed ceramic rod, then continues to be stained with slurry, drenches sand to the wax-pattern with ceramic rod again, and shell is obtained after finally dry, hardening；
5th step：Steam dewaxing, roasting are carried out to the shell；
6th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after the aluminium alloy solidification.
Its further technical scheme is：
The ceramic rod is adhesively fixed by refractory cement with trailing edge or leading edge；
A kind of method for preventing the formwork cracking during shell processed, comprises the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and add
Gu；
3rd step：To the 3rd step gained cere coating, drench sand and reinforce to the specified number of plies, formwork sprue cup outer wall with
Ceramic rod is fixed between cross gate or sprue；
4th step：Wax-pattern of the 4th step with ceramic rod is placed in coating using shell making mechanical hand is impregnated, make coating equal
It is even to be covered in wax pattern surface, obtain shell after then drenching sand, drying, hardening using manipulator；
5th step：Steam dewaxing, roasting are carried out to the shell；
6th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after the aluminium alloy solidification.
Its further technical scheme is：
The ceramic rod is adhesively fixed by refractory cement with sprue cup and cross gate or sprue；
The ceramic rod is arranged symmetrically centered on sprue cup.
Beneficial effects of the present invention are as follows：
In the present invention by increased ceramic rod, the stress that wax-pattern expansion brings in dewaxing process can be transferred to ceramics
On rod, while set up easily hanging at the position of ceramic rod so that the position of addition ceramic rod ensure that it is enough
Slurry and sand material, reach the effect of enhancing formwork, and the ability for making formwork meet with stresses is improved, it is to avoid it produces cracking.Exist in addition
By setting ceramic rod between sprue cup and cross gate or sprue during shell processed, each running channel and sprue cup can not only be increased
Between the intensity that withstands forces, and manipulator is in shell action process processed, in sprue cup and the junction of cross gate or sprue
Between the power part born be dispersed in ceramic rod, so as to effectively prevent due between sprue cup and cross gate or sprue
The formwork problem of Cracking that intensity is too low and causes.
Brief description of the drawings
Fig. 1 is the structural representation of leading edge or trailing edge the setting ceramic rod in formwork.
Fig. 2 is mplifying structure schematic diagrams of the Fig. 1 at A.
Fig. 3 is the structural representation that ceramic rod is set between sprue cup and cross gate.
Fig. 4 is the structural representation that ceramic rod is set between sprue cup and sprue.
Wherein：1st, leading edge；2nd, trailing edge；3rd, ceramic rod；4th, sprue cup；5th, cross gate；6th, sprue.
Specific embodiment
Specific embodiment of the invention is illustrated below.
Embodiment 1：
A kind of method for preventing the formwork cracking in shell dewaxing process processed is comprised the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and add
Gu；
4th step：After the 3rd step is to wax mould coating, pouring sand to the specified number of plies, at the wax pattern surface low-intensity position
Fixed ceramic rod 3, is leading edge 2 or trailing edge 1 at the low-intensity position in embodiment, and this is low strong in actual production process
Degree position is easily the position of crackle occur after dewaxing.Then again the wax-pattern with ceramic rod 3 continued to be stained with slurry, drench sand, finally done
Shell is obtained after dry, hardening；Ceramic rod is adhesively fixed by refractory cement with trailing edge 1 or leading edge 2.
5th step：Steam dewaxing, roasting are carried out to shell；
6th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after aluminium alloy solidification.
In the embodiment dewaxing process, due to increased ceramic rod 3, the stress that wax-pattern expansion brings in dewaxing process
Can be transferred on ceramic rod, while easily hanging at the position of ceramic rod is set up, so that the position of addition ceramic rod can
Guarantee has enough slurries and sand material, reaches the effect of enhancing formwork, makes the height that meets with stresses of formwork, it is to avoid it produces cracking.
Embodiment 2：
A kind of method for preventing the formwork cracking during shell processed is comprised the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and add
Gu；
4th step：After the 3rd step is to wax mould coating, pouring sand to the specified number of plies, as shown in Figure 3, Figure 4, in the cast gate of formwork
Ceramic rod 3 is fixed between 4 outer walls of cup and cross gate 51 or sprue 52；Ceramic rod 3 is by refractory cement and sprue cup and horizontal pours
Road 51 or sprue 52 are adhesively fixed, and ceramic rod 3 is arranged symmetrically centered on sprue cup 4.
5th step：Wax-pattern of the 4th step with ceramic rod 3 is placed in coating using shell making mechanical hand is impregnated, make coating equal
It is even to be covered in wax pattern surface, obtain shell after then drenching sand, drying, hardening using manipulator；
6th step：Steam dewaxing, roasting are carried out to shell；
7th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after aluminium alloy solidification.
In this embodiment, by setting ceramic rod 3 between sprue cup 4 and cross gate 51 or sprue 52, it is not only
The intensity of the endurance between each running channel and sprue cup can be increased, and manipulator is in shell action process processed, in sprue cup 4
The power part born and the junction of cross gate 51 or sprue 52 between is dispersed in ceramic rod 3, so as to effectively prevent
Due to intensity is too low between sprue cup 4 and cross gate 51 or sprue 52 and the formwork problem of Cracking that causes.
Above description is explanation of the invention, is not the restriction to inventing, and limited range of the present invention is referring to right
It is required that, in the case of without prejudice to basic structure of the invention, the present invention can make any type of modification.
Claims (5)
1. it is a kind of to prevent the method that formwork ftractures during shell processed, it is characterised in that to comprise the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and reinforce；
4th step：After the 3rd step is to wax mould coating, pouring sand to the specified number of plies, fixed at the wax pattern surface low-intensity position
Ceramic rod, then continues to be stained with slurry, drenches sand to the wax-pattern with ceramic rod again, and shell is obtained after finally dry, hardening；
5th step：Steam dewaxing, roasting are carried out to the shell；
6th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after the aluminium alloy solidification.
It is 2. a kind of as claimed in claim 1 to prevent the method that formwork ftractures during shell processed, it is characterised in that：The ceramics
Rod is adhesively fixed by refractory cement with trailing edge or leading edge.
3. it is a kind of to prevent the method that formwork ftractures during shell processed, it is characterised in that to comprise the following steps：
The first step：Configuration mould material；
Second step：Mould material is injected in Wax mold, wax-pattern is obtained after condensation shaping；
3rd step：The wax-pattern is placed in coating and is stained with slurry, make coating uniform fold in wax pattern surface, then drenched sand and reinforce；
3rd step：3rd step gained cere coating, pouring sand are reinforced to the specified number of plies, is poured with horizontal in the sprue cup outer wall of formwork
Ceramic rod is fixed between road or sprue；
4th step：Wax-pattern of the 4th step with ceramic rod is placed in coating using shell making mechanical hand is impregnated, coating is uniformly covered
Wax pattern surface is placed on, shell is obtained after then drenching sand, drying, hardening using manipulator；
5th step：Steam dewaxing, roasting are carried out to the shell；
6th step：To pouring into a mould aluminium alloy in the shell after roasting, casting is obtained after the aluminium alloy solidification.
It is 4. a kind of as claimed in claim 3 to prevent the method that formwork ftractures during shell processed, it is characterised in that：The ceramics
Rod is adhesively fixed by refractory cement with sprue cup and cross gate or sprue.
It is 5. a kind of as claimed in claim 3 to prevent the method that formwork ftractures during shell processed, it is characterised in that：The ceramics
Rod is arranged symmetrically centered on sprue cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058279.2A CN106734886A (en) | 2017-01-23 | 2017-01-23 | A kind of method for preventing the formwork cracking during shell processed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058279.2A CN106734886A (en) | 2017-01-23 | 2017-01-23 | A kind of method for preventing the formwork cracking during shell processed |
Publications (1)
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|---|---|
| CN106734886A true CN106734886A (en) | 2017-05-31 |
Family
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Family Applications (1)
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|---|---|---|---|
| CN201710058279.2A Pending CN106734886A (en) | 2017-01-23 | 2017-01-23 | A kind of method for preventing the formwork cracking during shell processed |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
| CN107931525A (en) * | 2017-11-21 | 2018-04-20 | 中国船舶重工集团公司第十二研究所 | A kind of method for controlling model casting casting solidification |
| CN110293208A (en) * | 2019-07-15 | 2019-10-01 | 深圳市万泽中南研究院有限公司 | Shell side method processed and formwork for blade class casting investment pattern precision casting |
| CN110560636A (en) * | 2019-10-09 | 2019-12-13 | 西安皓森精铸有限公司 | Method for reducing shell cracking in investment casting process |
| CN111112577A (en) * | 2019-12-31 | 2020-05-08 | 西安西工大超晶科技发展有限责任公司 | Automatic preparation method of C-shaped opening casting formwork |
| CN114101585A (en) * | 2021-11-22 | 2022-03-01 | 泰州市金鹰精密铸造有限公司 | Research method for casting formwork based on thin-wall high-strength investment casting |
| CN115069978A (en) * | 2021-03-16 | 2022-09-20 | 中国航发商用航空发动机有限责任公司 | Casting system and casting method for splash plate of combustion chamber |
| CN115351241A (en) * | 2022-08-16 | 2022-11-18 | 江苏永瀚特种合金技术股份有限公司 | Method for locally increasing shell strength |
| CN117161319A (en) * | 2023-10-30 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07236941A (en) * | 1994-02-28 | 1995-09-12 | Mitsubishi Heavy Ind Ltd | Production of mold for single crystal precision casting |
| JPH0994631A (en) * | 1995-09-28 | 1997-04-08 | Mitsubishi Heavy Ind Ltd | Mold for single crystal precision casting |
| JPH09317402A (en) * | 1996-05-30 | 1997-12-09 | Hitachi Ltd | Single crystal vane for gas turbine, vane segment and method for manufacturing the same |
| JPH1034280A (en) * | 1996-05-24 | 1998-02-10 | Mitsubishi Heavy Ind Ltd | Mold for precision molding of single crystal |
| CN1605408A (en) * | 2003-08-28 | 2005-04-13 | 联合工艺公司 | Investment casting |
| CN101011724A (en) * | 2006-01-30 | 2007-08-08 | 联合工艺公司 | Investment casting mold design and motor for investment casting using the same |
| CN101823123A (en) * | 2009-10-30 | 2010-09-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of shangdian soil type shell used for heavy gas turbine plant guide vane investment casting |
| CN204234669U (en) * | 2014-11-18 | 2015-04-01 | 连云港源钰金属制品有限公司 | Be convenient to the hot investment casting wax tree structure departed from |
| CN104923734A (en) * | 2015-05-18 | 2015-09-23 | 东方电气集团东方汽轮机有限公司 | Vertical ceramic mould housing for single crystal blade forming and forming method of ceramic mould housing |
| CN105855468A (en) * | 2016-04-13 | 2016-08-17 | 东方电气集团东方汽轮机有限公司 | Ceramic shell manufacturing method and method for manufacturing ceramic shell of turbine blade |
-
2017
- 2017-01-23 CN CN201710058279.2A patent/CN106734886A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07236941A (en) * | 1994-02-28 | 1995-09-12 | Mitsubishi Heavy Ind Ltd | Production of mold for single crystal precision casting |
| JPH0994631A (en) * | 1995-09-28 | 1997-04-08 | Mitsubishi Heavy Ind Ltd | Mold for single crystal precision casting |
| JPH1034280A (en) * | 1996-05-24 | 1998-02-10 | Mitsubishi Heavy Ind Ltd | Mold for precision molding of single crystal |
| JPH09317402A (en) * | 1996-05-30 | 1997-12-09 | Hitachi Ltd | Single crystal vane for gas turbine, vane segment and method for manufacturing the same |
| CN1605408A (en) * | 2003-08-28 | 2005-04-13 | 联合工艺公司 | Investment casting |
| CN101011724A (en) * | 2006-01-30 | 2007-08-08 | 联合工艺公司 | Investment casting mold design and motor for investment casting using the same |
| CN101823123A (en) * | 2009-10-30 | 2010-09-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Manufacturing method of shangdian soil type shell used for heavy gas turbine plant guide vane investment casting |
| CN204234669U (en) * | 2014-11-18 | 2015-04-01 | 连云港源钰金属制品有限公司 | Be convenient to the hot investment casting wax tree structure departed from |
| CN104923734A (en) * | 2015-05-18 | 2015-09-23 | 东方电气集团东方汽轮机有限公司 | Vertical ceramic mould housing for single crystal blade forming and forming method of ceramic mould housing |
| CN105855468A (en) * | 2016-04-13 | 2016-08-17 | 东方电气集团东方汽轮机有限公司 | Ceramic shell manufacturing method and method for manufacturing ceramic shell of turbine blade |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931525A (en) * | 2017-11-21 | 2018-04-20 | 中国船舶重工集团公司第十二研究所 | A kind of method for controlling model casting casting solidification |
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
| CN107803465B (en) * | 2017-12-06 | 2024-01-05 | 安徽应流航源动力科技有限公司 | Anti-cracking bottom plate for single crystal castings and preparation method thereof |
| CN110293208A (en) * | 2019-07-15 | 2019-10-01 | 深圳市万泽中南研究院有限公司 | Shell side method processed and formwork for blade class casting investment pattern precision casting |
| CN110560636A (en) * | 2019-10-09 | 2019-12-13 | 西安皓森精铸有限公司 | Method for reducing shell cracking in investment casting process |
| CN111112577A (en) * | 2019-12-31 | 2020-05-08 | 西安西工大超晶科技发展有限责任公司 | Automatic preparation method of C-shaped opening casting formwork |
| CN115069978A (en) * | 2021-03-16 | 2022-09-20 | 中国航发商用航空发动机有限责任公司 | Casting system and casting method for splash plate of combustion chamber |
| CN114101585A (en) * | 2021-11-22 | 2022-03-01 | 泰州市金鹰精密铸造有限公司 | Research method for casting formwork based on thin-wall high-strength investment casting |
| CN115351241A (en) * | 2022-08-16 | 2022-11-18 | 江苏永瀚特种合金技术股份有限公司 | Method for locally increasing shell strength |
| CN117161319A (en) * | 2023-10-30 | 2023-12-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
| CN117161319B (en) * | 2023-10-30 | 2024-01-23 | 中国航发沈阳黎明航空发动机有限责任公司 | Module for solving cracking of investment casting manipulator shell and casting method |
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Application publication date: 20170531 |