CN107876695A - Prevent process structure of lost foam pattern deformation and preparation method thereof - Google Patents
Prevent process structure of lost foam pattern deformation and preparation method thereof Download PDFInfo
- Publication number
- CN107876695A CN107876695A CN201711353195.8A CN201711353195A CN107876695A CN 107876695 A CN107876695 A CN 107876695A CN 201711353195 A CN201711353195 A CN 201711353195A CN 107876695 A CN107876695 A CN 107876695A
- Authority
- CN
- China
- Prior art keywords
- model
- circle
- tamper
- process structure
- tamper circle
- 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
Abstract
The invention discloses a kind of process structure for preventing lost foam pattern from deforming, described model (1) is tubular construction；The end inner stopper of described model (1), the tamper circle (2) of annular is set, is formed and is engaged with described model (1).The invention also discloses the preparation method of the process structure.Using above-mentioned technical proposal, suit is convenient, accurate positioning；By being set with tamper circle when coating is in hygrometric state, model is fully held round with tamper circle, improves model rounding precision；By the use of coating as bond medium, tamper circle and model are bonded firm, effectively prevent that model tamper circle during sand, jolt ramming is added from coming off failure.
Description
Technical field
The invention belongs to the technical field of ductile iron pipe production technology.More particularly it relates to one kind prevents from disappearing
Lose the process structure of mould model deformation.In addition, the invention further relates to the preparation method of the process structure.
Background technology
Using founding casing with vacuum production casting, especially produce nodular cast iron pipe fittings, precise control model roundness
It is the basis for obtaining castings.
According to statistics, the generation more than 60% that circle is lost in its deformation of lost foam process production pipe fitting comes from Huang Mo influence.For
Prevent from deforming, be generally provided with liner sand circle in interface, generally model dip-coating is toasted and dries rear enclosure sand loading circle, following ask be present
Topic：
1st, rear enclosure sand loading circle is dried in coating, due to the inhomogeneities of matching part coating, causes sand circle sealing surface and mould
The corresponding docking site of type can not accomplish to fit like a glove, do not have fully, be accurately positioned the effect of holding round；
2nd, it can not be completely fixed with model after sand snare dress, displacement is easily produced during sand molding is added, causes to determine circle
Failure.
The content of the invention
The present invention provides a kind of process structure for preventing lost foam pattern from deforming, and the purpose is to prevent the change of lost foam pattern
Shape.
To achieve these goals, the technical scheme taken of the present invention is：
The present invention's prevents process structure that lost foam pattern deforms, and described model is tubular construction, described model
End inner stopper, the tamper circle of annular is set, is formed and is engaged with described model.
Described tamper circle uses resin sand material.
The outer face of described tamper circle is provided with brace rod.
Described brace rod is the reinforcing bar of cruciform shape, and four ends and the described tamper circle of reinforcing bar are fastenedly connected.
Between described model and the faying face of tamper circle, provided with glued coating.
In order to realize with above-mentioned technical proposal identical goal of the invention, prevent from disappearing present invention also offers above-described
The preparation method of the process structure of mould model deformation, its technical scheme are：
The process of described preparation method is：
Model is made by shape using EPS；
Using molding sand and resin by tamper circle；
Brace rod is fixed on tamper circle；
After described model dip-coating, tamper circle snare is attached to the inner stopper of the end face of model immediately, formation one is whole
Body；
Model and tamper circle are together toasted, until drying is qualified.
The present invention uses above-mentioned technical proposal, and suit is convenient, accurate positioning；By being set with tamper when coating is in hygrometric state
Circle, model is fully held round, improve model rounding precision with tamper circle；By the use of coating as bond medium, by tamper circle with
Model bonding is firm, effectively prevents that model tamper circle during sand, jolt ramming is added from coming off failure.
Brief description of the drawings
Content shown in accompanying drawing and the mark in figure are briefly described as follows：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the schematic top plan view of structure shown in Fig. 1.
In figure mark for：
1st, model, 2, tamper circle, 3, brace rod, 4, glued coating.
Embodiment
Below against accompanying drawing, by the description to embodiment, embodiment of the invention is made further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical scheme
Solution.
Structure of the invention as shown in Figure 1 and Figure 2, for a kind of process structure for preventing lost foam pattern from deforming, described mould
Type 1 is tubular construction, and process is set with applied to by the wet method of model dip-coating rear enclosure sand loading lining ring.
The defects of in order to overcome prior art, the goal of the invention for the deformation for preventing lost foam pattern is realized, the present invention takes
Technical scheme be：
As shown in Figure 1 and Figure 2, the process structure for preventing lost foam pattern deformation of the invention, the end of described model 1
Inner stopper, the tamper circle 2 of annular is set, is formed and is engaged with described model 1.
Tamper circle 2 is sleeved on by the structure immediately by changing tamper circle 2 in suit mode after the completion of the dip-coating of model 1
Model 1, it is sufficiently engaged with using tamper circle 2 and model 1, is fitted close by glued coating using model 1 and tamper circle.
Described tamper circle 2 uses resin sand material.
Above-mentioned technical proposal can make model 1 have tamper circle 2 in baking process as fixed circle, have no resistance after supporting dip-coating
The yellow mould of shape ability is in the state of a rounding, and until baking terminates, coating establishes intensity, now yellow mould and tamper circle 2 are logical
The bonding one integrated mass of coating is crossed, improves follow-up resistance to deformation, the ability of peel.
The outer face of described tamper circle 2 is provided with brace rod 3.
Brace rod 3 serves the effect of reinforcement, makes model 1 less yielding.
Described brace rod 3 is the reinforcing bar of cruciform shape, and four ends of reinforcing bar connect with the described fastening of tamper circle 2
Connect.
Between described model 1 and the faying face of tamper circle 2, provided with glued coating 4.
The glued coating 4 is the adhesive that model needs dip-coating before baking, plays the protective effect to model 1.
In order to realize with above-mentioned technical proposal identical goal of the invention, prevent from disappearing present invention also offers above-described
The preparation method of the process structure of mould model deformation, its technical scheme are：
The process of described preparation method is：
Model 1 is made by shape using EPS；
Using molding sand and resin by tamper circle 2；
Brace rod 3 is fixed on tamper circle 2；
After the described dip-coating of model 1, the snare of tamper circle 2 is attached to the inner stopper of the end face of model 1 immediately, forms one
It is overall；
Model 1 and tamper circle 2 are together toasted, until drying is qualified.
After evaporative pattern EPS model dip-coatings, before baking, resin sand lining ring set is attached to the interface inner face of pipe fitting model,
Together toast, until drying is qualified.So, tamper circle and models coupling, one integrated mass are kept during subsequent technique.
The technological advantage：
1st, it is set with convenient, accurate positioning；
2nd, by being set with tamper circle when coating is in hygrometric state, model is fully held round with tamper circle, improves model circle
Whole precision；
3rd, by the use of coating as bond medium, tamper circle and model is bonded, effectively prevent model from adding sand, jolt ramming process
Middle tamper circle comes off failure.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (6)
1. a kind of process structure for preventing lost foam pattern from deforming, described model (1) is tubular construction, it is characterised in that：Institute
The end inner stopper for the model (1) stated, the tamper circle (2) of annular is set, is formed and is engaged with described model (1).
2. according to the process structure for preventing lost foam pattern deformation described in claim 1, it is characterised in that：Described tamper circle
(2) resin sand material is used.
3. according to the process structure for preventing lost foam pattern deformation described in claim 1, it is characterised in that：Described tamper circle
(2) outer face is provided with brace rod (3).
4. according to the process structure for preventing lost foam pattern deformation described in claim 1, it is characterised in that：Described brace rod
(3) it is the reinforcing bar of cruciform shape, four ends of reinforcing bar are fastenedly connected with described tamper circle (2).
5. according to the process structure for preventing lost foam pattern deformation described in claim 1, it is characterised in that：Described model
(1) between the faying face of tamper circle (2), provided with glued coating (4).
6. according to any one of claim 1 to 5 prevent lost foam pattern deform process structure preparation method, its
Being characterised by the process of described preparation method is：
Model (1) is made by shape using EPS；
Using molding sand and resin by tamper circle (2)；
Brace rod (3) is fixed on tamper circle (2)；
After described model (1) dip-coating, tamper circle (2) snare is attached to the inner stopper of the end face of model (1) immediately, forms one
Individual entirety；
Model (1) and tamper circle (2) are together toasted, until drying is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353195.8A CN107876695A (en) | 2017-12-15 | 2017-12-15 | Prevent process structure of lost foam pattern deformation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353195.8A CN107876695A (en) | 2017-12-15 | 2017-12-15 | Prevent process structure of lost foam pattern deformation and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107876695A true CN107876695A (en) | 2018-04-06 |
Family
ID=61770851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711353195.8A Pending CN107876695A (en) | 2017-12-15 | 2017-12-15 | Prevent process structure of lost foam pattern deformation and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107876695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655337A (en) * | 2018-05-15 | 2018-10-16 | 芜湖新兴新材料产业园有限公司 | A kind of foamed model of baffle ring and baffle ring lost foam casting process |
| CN109226698A (en) * | 2018-11-29 | 2019-01-18 | 芜湖新兴新材料产业园有限公司 | The anti-deformation device and large-caliber pipe fittings casting technique that dip-coating process uses |
| CN109317617A (en) * | 2018-11-29 | 2019-02-12 | 芜湖新兴新材料产业园有限公司 | Sand circle and preparation method thereof suitable for lost foam casting process |
| CN112427603A (en) * | 2020-10-15 | 2021-03-02 | 桃江新兴管件有限责任公司 | Large-size pipe fitting and lost foam casting method thereof |
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| JPH0592233A (en) * | 1991-09-30 | 1993-04-16 | Tokyo Tekko Kk | Lost pattern for casting and manufacture of the same |
| JPH0899152A (en) * | 1994-09-29 | 1996-04-16 | Kubota Corp | Foamed pattern for casting lost foam pattern |
| CN201244658Y (en) * | 2008-08-06 | 2009-05-27 | 河北海钺耐磨材料科技有限公司 | Recyclable evaporative pattern anti-deforming lacing wire |
| CN102717031A (en) * | 2012-07-02 | 2012-10-10 | 山西模范机械制造有限公司 | Large-scale thin-wall valve body lost foam casting process |
| JP2012192418A (en) * | 2011-03-15 | 2012-10-11 | Hara Kogyosho:Kk | Casting method using rod-like sand core and deformation preventing tool of rod-like sand core |
| CN103008545A (en) * | 2012-12-11 | 2013-04-03 | 中联重科股份有限公司 | Disappearance die casting method and casting product |
| CN203044804U (en) * | 2012-12-28 | 2013-07-10 | 桃江新兴管件有限责任公司 | Lining ring for pipe fitting insertion port |
| CN204108227U (en) * | 2014-08-08 | 2015-01-21 | 山东蒙凌工程机械股份有限公司 | Gearbox body evaporative pattern apperance fixture |
| CN204545323U (en) * | 2015-04-29 | 2015-08-12 | 宁波通达精密铸造有限公司 | The dispellable mould casting bubbles model of solid casting |
| CN105964916A (en) * | 2016-06-20 | 2016-09-28 | 福建立松金属工业有限公司 | Submersible pump body casting technology |
| CN206009727U (en) * | 2016-08-19 | 2017-03-15 | 当阳市瑞丰机械制造有限公司 | The frame device of lost pattern |
| CN206286502U (en) * | 2016-11-29 | 2017-06-30 | 芜湖新兴铸管有限责任公司 | Evaporative pattern magnesium iron pipe fitting bellmouth anti-deformation device |
| CN207681425U (en) * | 2017-12-15 | 2018-08-03 | 芜湖新兴新材料产业园有限公司 | A kind of process structure for preventing lost foam pattern from deforming |
-
2017
- 2017-12-15 CN CN201711353195.8A patent/CN107876695A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0592233A (en) * | 1991-09-30 | 1993-04-16 | Tokyo Tekko Kk | Lost pattern for casting and manufacture of the same |
| JPH0899152A (en) * | 1994-09-29 | 1996-04-16 | Kubota Corp | Foamed pattern for casting lost foam pattern |
| CN201244658Y (en) * | 2008-08-06 | 2009-05-27 | 河北海钺耐磨材料科技有限公司 | Recyclable evaporative pattern anti-deforming lacing wire |
| JP2012192418A (en) * | 2011-03-15 | 2012-10-11 | Hara Kogyosho:Kk | Casting method using rod-like sand core and deformation preventing tool of rod-like sand core |
| CN102717031A (en) * | 2012-07-02 | 2012-10-10 | 山西模范机械制造有限公司 | Large-scale thin-wall valve body lost foam casting process |
| CN103008545A (en) * | 2012-12-11 | 2013-04-03 | 中联重科股份有限公司 | Disappearance die casting method and casting product |
| CN203044804U (en) * | 2012-12-28 | 2013-07-10 | 桃江新兴管件有限责任公司 | Lining ring for pipe fitting insertion port |
| CN204108227U (en) * | 2014-08-08 | 2015-01-21 | 山东蒙凌工程机械股份有限公司 | Gearbox body evaporative pattern apperance fixture |
| CN204545323U (en) * | 2015-04-29 | 2015-08-12 | 宁波通达精密铸造有限公司 | The dispellable mould casting bubbles model of solid casting |
| CN105964916A (en) * | 2016-06-20 | 2016-09-28 | 福建立松金属工业有限公司 | Submersible pump body casting technology |
| CN206009727U (en) * | 2016-08-19 | 2017-03-15 | 当阳市瑞丰机械制造有限公司 | The frame device of lost pattern |
| CN206286502U (en) * | 2016-11-29 | 2017-06-30 | 芜湖新兴铸管有限责任公司 | Evaporative pattern magnesium iron pipe fitting bellmouth anti-deformation device |
| CN207681425U (en) * | 2017-12-15 | 2018-08-03 | 芜湖新兴新材料产业园有限公司 | A kind of process structure for preventing lost foam pattern from deforming |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655337A (en) * | 2018-05-15 | 2018-10-16 | 芜湖新兴新材料产业园有限公司 | A kind of foamed model of baffle ring and baffle ring lost foam casting process |
| CN108655337B (en) * | 2018-05-15 | 2023-11-07 | 芜湖新兴新材料产业园有限公司 | Baffle ring foam plastic model and baffle ring lost foam casting process |
| CN109226698A (en) * | 2018-11-29 | 2019-01-18 | 芜湖新兴新材料产业园有限公司 | The anti-deformation device and large-caliber pipe fittings casting technique that dip-coating process uses |
| CN109317617A (en) * | 2018-11-29 | 2019-02-12 | 芜湖新兴新材料产业园有限公司 | Sand circle and preparation method thereof suitable for lost foam casting process |
| CN112427603A (en) * | 2020-10-15 | 2021-03-02 | 桃江新兴管件有限责任公司 | Large-size pipe fitting and lost foam casting method thereof |
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