CN106734938A - A kind of method that core is made with carbon dioxide hardening resin - Google Patents
A kind of method that core is made with carbon dioxide hardening resin Download PDFInfo
- Publication number
- CN106734938A CN106734938A CN201611082740.XA CN201611082740A CN106734938A CN 106734938 A CN106734938 A CN 106734938A CN 201611082740 A CN201611082740 A CN 201611082740A CN 106734938 A CN106734938 A CN 106734938A
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- CN
- China
- Prior art keywords
- carbon dioxide
- core
- hardened
- resin
- sand
- 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
- 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
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
- B22C9/123—Gas-hardening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of method that core is made with carbon dioxide hardening resin, mixed preparing is carried out using silica sand and resin, make blade sand core, and according to actual requirement, it is ensured that forming, hardened using carbon dioxide, after molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out, carbon dioxide hardening is carried out again, make up to satisfactory hardening strength.By the present invention in that being hardened with carbon dioxide, ensure that the up time of molding sand is long, making steel-casting impeller can be hardened on the basis of fully shaping, ensure that the shaping of blade, the shaping of molding is also ensure that, and solves the ropy problem of steel-casting impeller surface, provided to product quality and ensured, production cost is greatly reduced simultaneously, good economic benefit is created to factory.
Description
Technical field
The present invention relates to core manufacturing technology field, specifically a kind of side that core is made with carbon dioxide hardening resin
Method.
Background technology
The conventional core method of making of steel-casting impeller is using furan resin-sand coremaking.This kind of scheme drawback is furans
The resin sand up time is short, just hardened before blade is without shaping well, and can not be good during molding
Hold the degree of molding sand hardening, it is impossible to ensure that blade is molded well, cause the surface quality of product poor, size Control is difficult,
Production cost is high.
The content of the invention
It is an object of the invention to provide a kind of method that core is made with carbon dioxide hardening resin, product matter is improved
Amount, reduces enterprise's production capacity, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of method that core is made with carbon dioxide hardening resin, step is as follows：
(1) mixed preparing is carried out using silica sand and resin, silica sand is 100 with the mass ratio of resin：2.5
~3.5；
(2) blade sand core is made, and according to actual requirement, it is ensured that forming；
(3) hardened using carbon dioxide, firm time is 3~15min；
(4) after the molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out；
(5) carbon dioxide hardening is carried out again to blade using carbon dioxide, makes up to satisfactory hardening strength.
As further scheme of the invention：In the step (1), the particle diameter of silica is 40~70 mesh.
As further scheme of the invention：In the step (1), silica sand is 100 with the mass ratio of resin：3.
As further scheme of the invention：In the step (3), firm time is 5~10min.
Compared with prior art, the beneficial effects of the invention are as follows：
Hardened by using carbon dioxide, ensure that the up time of molding sand is long, made steel-casting impeller energy
It is enough to be hardened on the basis of fully shaping, it is ensured that the shaping of blade, the shaping of molding is also ensure that, finally ensure that product
Product surface quality, solves the ropy problem of steel-casting impeller surface, is provided to product quality and ensured, while substantially reducing
Production cost, to factory creates good economic benefit.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
The step of making core with carbon dioxide hardening resin is as follows：
(1) mixed preparing is carried out using silica sand and resin, silica sand is 100 with the mass ratio of resin：
2.5；The particle diameter of silica is 40 mesh；
(2) blade sand core is made, and according to actual requirement, it is ensured that forming；
(3) hardened using carbon dioxide, firm time is 15min；
(4) after the molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out；
(5) carbon dioxide hardening is carried out again to blade using carbon dioxide, makes up to satisfactory hardening strength.
Embodiment 2
The step of making core with carbon dioxide hardening resin is as follows：
(1) mixed preparing is carried out using silica sand and resin, silica sand is 100 with the mass ratio of resin：3；
The particle diameter of silica is 55 mesh；
(2) blade sand core is made, and according to actual requirement, it is ensured that forming；
(3) hardened using carbon dioxide, firm time is 9min；
(4) after the molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out；
(5) carbon dioxide hardening is carried out again to blade using carbon dioxide, makes up to satisfactory hardening strength.
Embodiment 3
The step of making core with carbon dioxide hardening resin is as follows：
(1) mixed preparing is carried out using silica sand and resin, silica sand is 100 with the mass ratio of resin：
3.5；The particle diameter of silica is 70 mesh；
(2) blade sand core is made, and according to actual requirement, it is ensured that forming；
(3) hardened using carbon dioxide, firm time is 3min；
(4) after the molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out；
(5) carbon dioxide hardening is carried out again to blade using carbon dioxide, makes up to satisfactory hardening strength.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Claims (4)
1. a kind of method that core is made with carbon dioxide hardening resin, it is characterised in that step is as follows：
(1) mixed preparing is carried out using silica sand and resin, silica sand is 100 with the mass ratio of resin：2.5~
3.5；
(2) blade sand core is made, and according to actual requirement, it is ensured that forming；
(3) hardened using carbon dioxide, firm time is 3~15min；
(4) after the molding sand after to be hardened reaches the intensity of regulation, blade mold is taken out；
(5) carbon dioxide hardening is carried out again to blade using carbon dioxide, makes up to satisfactory hardening strength.
2. the method that core is made with carbon dioxide hardening resin according to claim 1, it is characterised in that the step
(1) in, the particle diameter of silica is 40~70 mesh.
3. the method that core is made with carbon dioxide hardening resin according to claim 1, it is characterised in that the step
(1) in, silica sand is 100 with the mass ratio of resin：3.
4. the method that core is made with carbon dioxide hardening resin according to claim 1, it is characterised in that the step
(3) in, firm time is 5~10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082740.XA CN106734938A (en) | 2016-11-30 | 2016-11-30 | A kind of method that core is made with carbon dioxide hardening resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611082740.XA CN106734938A (en) | 2016-11-30 | 2016-11-30 | A kind of method that core is made with carbon dioxide hardening resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106734938A true CN106734938A (en) | 2017-05-31 |
Family
ID=58901515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611082740.XA Pending CN106734938A (en) | 2016-11-30 | 2016-11-30 | A kind of method that core is made with carbon dioxide hardening resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106734938A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195151A (en) * | 2007-12-19 | 2008-06-11 | 西安汇群机械科技有限公司 | Thermal couple protector tube processing technique |
| CN101314175A (en) * | 2007-05-28 | 2008-12-03 | 洛阳双瑞特钢科技有限公司 | Alkalescent phenol resin sand carbonic anhydride induration cold box core-manufacturing method and application thereof |
| CN101402131A (en) * | 2008-11-12 | 2009-04-08 | 齐齐哈尔轨道交通装备有限责任公司 | Integral sand core, mould for casting coupler knuckle, producing method and coupler knuckle |
| CN103192031A (en) * | 2013-04-03 | 2013-07-10 | 苏州苏铸成套装备制造有限公司 | Forming method of optimized sand core |
| CN103611875A (en) * | 2013-10-15 | 2014-03-05 | 湘潭新力机械有限公司 | Impeller air-lock valve impeller rotor production process |
| CN105537530A (en) * | 2015-12-27 | 2016-05-04 | 无锡市灵通铸造有限公司 | Sand core good in breathability and manufacturing method of sand core |
| US20160297002A1 (en) * | 2014-12-02 | 2016-10-13 | Halliburton Energy Services, Inc. | Mold assemblies used for fabricating downhole tools |
-
2016
- 2016-11-30 CN CN201611082740.XA patent/CN106734938A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101314175A (en) * | 2007-05-28 | 2008-12-03 | 洛阳双瑞特钢科技有限公司 | Alkalescent phenol resin sand carbonic anhydride induration cold box core-manufacturing method and application thereof |
| CN101195151A (en) * | 2007-12-19 | 2008-06-11 | 西安汇群机械科技有限公司 | Thermal couple protector tube processing technique |
| CN101402131A (en) * | 2008-11-12 | 2009-04-08 | 齐齐哈尔轨道交通装备有限责任公司 | Integral sand core, mould for casting coupler knuckle, producing method and coupler knuckle |
| CN103192031A (en) * | 2013-04-03 | 2013-07-10 | 苏州苏铸成套装备制造有限公司 | Forming method of optimized sand core |
| CN103611875A (en) * | 2013-10-15 | 2014-03-05 | 湘潭新力机械有限公司 | Impeller air-lock valve impeller rotor production process |
| US20160297002A1 (en) * | 2014-12-02 | 2016-10-13 | Halliburton Energy Services, Inc. | Mold assemblies used for fabricating downhole tools |
| CN105537530A (en) * | 2015-12-27 | 2016-05-04 | 无锡市灵通铸造有限公司 | Sand core good in breathability and manufacturing method of sand core |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |