CN102942887B - Foamed plastic binder for lost form casting and method for preparing binder - Google Patents
Foamed plastic binder for lost form casting and method for preparing binder Download PDFInfo
- Publication number
- CN102942887B CN102942887B CN201210476488.6A CN201210476488A CN102942887B CN 102942887 B CN102942887 B CN 102942887B CN 201210476488 A CN201210476488 A CN 201210476488A CN 102942887 B CN102942887 B CN 102942887B
- Authority
- CN
- China
- Prior art keywords
- binding agent
- porous plastics
- binder
- lost foam
- foam casting
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a foamed plastic binder for lost form casting and a method for preparing the binder. The foamed plastic binder for lost form casting comprises, by mass, 62.4% to 66.4% of methanol or ethanol, 11.1% to 12.5% of polyvinyl butyral (PVB), 11.1% to 12.5% of phenolic resins, 11.1% to 12.5% of rosin and 0.12% to 0.44% of surface active agents, wherein the total content of the constituents is 100%. The invention further discloses a method for preparing the foamed plastic binder, the weighed methanol or ethanol, the PVB, the phenolic resins, the rosin and the surface active agents are mixed to be stirred fully and evenly. The binder is rapid in bonding speed, the strength is high, and defects that the gas evolution is high, the residues are many after burning, the bonding capability is weak, and the usage amount is large of prior binders are overcome.
Description
Technical field
The invention belongs to the Technology of EPC field, be specifically related to a kind of binding agent of the porous plastics for lost foam casting, the invention still further relates to the preparation method of the porous plastics binding agent of above-mentioned lost foam casting.
Background technology
The preparation of dispellable mould casting foam mould is one of important procedure in lost foam casting.And if apperance while preparing binding agent select improper, as too much or very few as the binder amount be coated with, not only affect molding efficiency, the residue after the gas forming amount in the time of also can increasing cast and burning, and make the apperance each several part in conjunction with bad, cause indenture or the veining defect of cast(ing) surface.In order to obtain the foundry goods of high-quality, in the pouring metal melt process, not only require plastic mold gasification fully, not stay residue, require simultaneously apperance with the binding agent gasification rapidly, noresidue.
In the apperance preparation process, the consumption of binding agent is more few better, otherwise too much binding agent there will be following phenomenon: be unfavorable for the rapid gasification of porous plastics; Because increasing of residue affects the quality of foundry goods; Because of the water-absorbent of porous plastics with ventilation property official post time of drying longly delayed the moulding cycle, and because porous plastics is dissolved in ester, benzene muriate and most of organic solvents such as ether, acetone, and being insoluble to alcohol and water, this just makes the binding agent that is adapted to porous plastics be subject to considerable restraint.
Summary of the invention
The purpose of this invention is to provide a kind of binding agent of the porous plastics for lost foam casting, solved that existing binding agent exists that gas forming amount is high, the low large problem of usage quantity that reaches of many, the cohesiveness of residue after burning.
Another object of the present invention is to provide the preparation method of the porous plastics binding agent of above-mentioned lost foam casting.
The technical solution adopted in the present invention is that the porous plastics binding agent for lost foam casting is comprised of following active principle according to mass percent:
Methyl alcohol or ethanol 62.4% ~ 66.4%, polyvinyl butyral resin PVB11.1% ~ 12.5%, resol 11.1% ~ 12.5%, rosin 11.1% ~ 12.5% and tensio-active agent 0.12% ~ 0.44%, the content summation of above component is 100%.
Characteristics of the present invention also are,
Tensio-active agent adopts a kind of in JFC, OP or peregal.
The second technical scheme of the present invention is, the preparation method for the porous plastics binding agent of lost foam casting specifically implements according to following steps:
Step 1, weighing medicine:
Take respectively by mass percentage methyl alcohol or ethanol 62.4% ~ 66.4%, polyvinyl butyral resin PVB11.1% ~ 12.5%, resol 11.1% ~ 12.5%, rosin 11.1% ~ 12.5% and tensio-active agent 0.12% ~ 0.44%, the content summation of above component is 100%;
Step 2, prepare the porous plastics binding agent of lost foam casting of the present invention:
The methyl alcohol or ethanol, polyvinyl butyral resin PVB, resol, rosin and the tensio-active agent that take in step 1 are mixed, stir, obtain the porous plastics binding agent of lost foam casting of the present invention.
The characteristics of the second technical scheme of the present invention also are,
Tensio-active agent adopts a kind of in JFC, OP or peregal.
The invention has the beneficial effects as follows,
(1) dispellable mould casting porous plastics binding agent cohesive strength of the present invention and use properties all are significantly increased, and rate of drying is fast, and dry rear cohesive strength is good;
(2) adopt in dispellable mould casting porous plastics binding agent of the present invention molding consumption few, improve molding efficiency, the residue after the gas forming amount while simultaneously reducing cast and burning, reduce indenture or the veining defect of cast(ing) surface, can obtain the foundry goods of high-quality;
(3) adhesive coated of the present invention is on foamed polystyrene pattern vacant several minutes, treats that organic solvent slightly volatilizees, and foamed polystyrene pattern is fastened and presses a little, can immediately set up cohesive strength preferably, and bonding efficiency is high;
(4) raw material sources that adopt in the inventive method are extensive, and cost is low, and manufacture craft is simple.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
The present invention, for the porous plastics binding agent of lost foam casting, is comprised of following active principle according to mass percent:
Methyl alcohol or ethanol 62.4% ~ 66.4%, polyvinyl butyral resin PVB11.1% ~ 12.5%, resol 11.1% ~ 12.5%, rosin 11.1% ~ 12.5% and tensio-active agent 0.12% ~ 0.44%, the content summation of above component is 100%.
Tensio-active agent wherein adopts a kind of in JFC, OP or peregal.
Tensio-active agent JFC: be nonionogenic tenside, there is good infiltration, wetting, emulsification, dispersive ability.
Surfactant OP: be nonionogenic tenside, outward appearance is white and oyster white mashed prod, has good level dyeing, emulsification, wetting, diffustivity.
Tensio-active agent peregal: be oyster white, beige paste or solid state, there is good wet performance, and there is emulsification preferably, dispersion, the performance such as clean.
The preparation method of the porous plastics binding agent of lost foam casting of the present invention, specifically implement according to following steps:
Step 1, weighing medicine:
Take respectively by mass percentage methyl alcohol or ethanol 62.4% ~ 66.4%, polyvinyl butyral resin PVB11.1% ~ 12.5%, resol 11.1% ~ 12.5%, rosin 11.1% ~ 12.5% and tensio-active agent 0.12% ~ 0.44%, the content summation of above component is 100%;
Step 2, prepare the porous plastics binding agent of lost foam casting of the present invention:
The methyl alcohol or ethanol, polyvinyl butyral resin PVB, resol, rosin and the tensio-active agent that take in step 1 are mixed, stir, obtain the porous plastics binding agent of lost foam casting of the present invention.
Wherein, binding agent is polyvinyl butyral resin PVB, adds rosin can improve its cohesive strength; Wherein adopt methyl alcohol or ethanol as carrier fluid; Add tensio-active agent JFC, OP and average Calais further to improve its wetting and penetrating power.
Embodiment 1
Take respectively by mass percentage methyl alcohol or ethanol 62.4%, polyvinyl butyral resin PVB12.3%, resol 12.5%, rosin 12.5% and tensio-active agent JFC0.3%, the content summation of above component is 100%.And methyl alcohol, polyvinyl butyral resin PVB, resol, rosin and tensio-active agent JFC are mixed, stir, obtain the porous plastics binding agent of lost foam casting of the present invention.
Embodiment 2
Take respectively by mass percentage methyl alcohol or ethanol 64.8%, polyvinyl butyral resin PVB12.1%, resol 11.6%, rosin 11.2% and Surfactant OP 0.3%, the content summation of above component is 100%.And methyl alcohol, polyvinyl butyral resin PVB, resol, rosin and Surfactant OP are mixed, stir, obtain the porous plastics binding agent of lost foam casting of the present invention.
Embodiment 3
Take respectively by mass percentage methyl alcohol or ethanol 66.4%, polyvinyl butyral resin PVB11.1%, resol 11.2%, rosin 11.1% and tensio-active agent peregal 0.2%, the content summation of above component is 100%.And methyl alcohol, polyvinyl butyral resin PVB, resol, rosin and tensio-active agent peregal are mixed, stir, obtain the porous plastics binding agent of lost foam casting of the present invention.
Claims (4)
1. for the porous plastics binding agent of lost foam casting, it is characterized in that, formed by following active principle according to mass percent:
Methyl alcohol or ethanol 62.4%～66.4%, polyvinyl butyral resin PVB11.1%～12.5%, resol 11.1%～12.5%, rosin 11.1%～12.5% and tensio-active agent 0.12%～0.44%, the content summation of above component is 100%.
2. the binding agent of the porous plastics for lost foam casting according to claim 1, is characterized in that, described tensio-active agent adopts a kind of in JFC, OP or peregal.
3. for the preparation method of the porous plastics binding agent of lost foam casting, it is characterized in that, specifically implement according to following steps:
Step 1, weighing medicine:
Take respectively by mass percentage methyl alcohol or ethanol 62.4%～66.4%, polyvinyl butyral resin PVB11.1%～12.5%, resol 11.1%～12.5%, rosin 11.1%～12.5% and tensio-active agent 0.12%～0.44%, the content summation of above component is 100%;
Step 2, prepare the porous plastics binding agent of lost foam casting:
The methyl alcohol or ethanol, polyvinyl butyral resin PVB, resol, rosin and the tensio-active agent that take in step 1 are mixed, stir, obtain the porous plastics binding agent of lost foam casting.
4. the preparation method of the binding agent of the porous plastics for lost foam casting according to claim 3, is characterized in that, described tensio-active agent is a kind of in JFC, OP or peregal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476488.6A CN102942887B (en) | 2012-11-22 | 2012-11-22 | Foamed plastic binder for lost form casting and method for preparing binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210476488.6A CN102942887B (en) | 2012-11-22 | 2012-11-22 | Foamed plastic binder for lost form casting and method for preparing binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102942887A CN102942887A (en) | 2013-02-27 |
| CN102942887B true CN102942887B (en) | 2014-01-08 |
Family
ID=47725882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210476488.6A Expired - Fee Related CN102942887B (en) | 2012-11-22 | 2012-11-22 | Foamed plastic binder for lost form casting and method for preparing binder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102942887B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368383A (en) * | 2015-10-21 | 2016-03-02 | 安徽埃斯克制泵有限公司 | Foamed plastic binder for centrifugal pump lost foam casting |
| CN105290312A (en) * | 2015-10-21 | 2016-02-03 | 和县科嘉阀门铸造有限公司 | Foamed plastic binder for lost foam casting of valve |
| CN105694771B (en) * | 2016-02-01 | 2018-01-23 | 安徽埃斯克制泵有限公司 | A kind of foamed sheet material binding agent of pump housing evaporative pattern manufacture |
| CN108838330B (en) * | 2018-08-01 | 2020-06-16 | 安徽信息工程学院 | Repairing method of lost foam |
| CN109014037B (en) * | 2018-08-01 | 2020-06-16 | 安徽信息工程学院 | Repair paste for lost foam and preparation method thereof |
| CN109909448B (en) * | 2019-03-28 | 2020-10-16 | 河北科技大学 | Preparation method of foam model and method for preparing metal matrix composite material |
| CN110079251A (en) * | 2019-05-05 | 2019-08-02 | 宁夏共享化工有限公司 | A kind of dispellable mould casting aqua type cold glue and preparation method thereof |
| CN110180993A (en) * | 2019-05-27 | 2019-08-30 | 西安工程大学 | The preparation method of special-shaped bent hole in a kind of metal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04372645A (en) * | 1991-06-24 | 1992-12-25 | Matsushita Electric Works Ltd | Phenol resin molding material |
| CN102061138A (en) * | 2009-11-17 | 2011-05-18 | 张维民 | Polyvinyl butyral (PVB) adhesive and preparation process thereof |
| CN102337096A (en) * | 2010-07-19 | 2012-02-01 | 张苏侠 | Preparation method of phenolic-polyvinyl acetal resin adhesive |
| CN102218502A (en) * | 2011-07-15 | 2011-10-19 | 浙江宸宇重工有限公司 | Isopropanol-based coating for lost foam casting steel and production method thereof |
-
2012
- 2012-11-22 CN CN201210476488.6A patent/CN102942887B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102942887A (en) | 2013-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102942887B (en) | Foamed plastic binder for lost form casting and method for preparing binder | |
| CN102139342B (en) | High-permeability sand-burning-preventing paint for casting and preparation method thereof | |
| CN100534664C (en) | Molding process and molds made by the process | |
| CN102218502A (en) | Isopropanol-based coating for lost foam casting steel and production method thereof | |
| CN108543908B (en) | Curing agent for 3D sand mold printing furan resin and preparation method thereof | |
| CN103586400A (en) | Preparation process of furan resin sand | |
| CN104525849A (en) | Wet-type molding sand environmental protection material and preparation method thereof | |
| CN107052231A (en) | A kind of full-mold casting coating and preparation method thereof | |
| CN105081198A (en) | Modified furan resin sand with sodium bentonite for casting steel and preparation method of modified furan resin sand | |
| CN101941046B (en) | Composite sodium silicate binder for sand mold and preparing method thereof | |
| CN105081202A (en) | Nano diatomite containing modified furan resin sand for steel casting and preparation method for nano diatomite containing modified furan resin sand | |
| CN103600024A (en) | Precoated sand mixing process | |
| CN104226893A (en) | Lost foam casting coating and preparation method thereof | |
| CN105880465B (en) | A kind of lost foam paint paste additive and preparation method | |
| CN102861866A (en) | Curing agent for furan resin self-hardening sand for casting and preparation method thereof | |
| CN110090917B (en) | Preparation method of cast-infiltration coating and preparation method of cast-infiltration coating | |
| CN104308073B (en) | A kind of production method of binder for casting | |
| CN100434388C (en) | Raw material formulation for ceramics polymer composite material and preparing method | |
| CN106166597A (en) | A kind of fast drying paint formula for refractory material production and preparation method thereof | |
| CN100469725C (en) | Ceramic epoxy resin composite material | |
| CN110238931A (en) | A kind of high efficiency bronze ware manufacture craft | |
| CN102688980A (en) | Environment-friendly casting molding sand and preparation method thereof | |
| CN101347817A (en) | Resin-bonded sand for clearing molding for casting mould | |
| CN102153972B (en) | Normal temperature quick-drying adhesive for assembling and installing complex core and preparation method | |
| CN104262921A (en) | Bamboo fiber reinforced styrene-free unsaturated polyester composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |