CN105583355A - Molding sand binder for pump body sand casting - Google Patents
Molding sand binder for pump body sand casting Download PDFInfo
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- CN105583355A CN105583355A CN201610074642.5A CN201610074642A CN105583355A CN 105583355 A CN105583355 A CN 105583355A CN 201610074642 A CN201610074642 A CN 201610074642A CN 105583355 A CN105583355 A CN 105583355A
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- parts
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- sand
- sodium
- binder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/167—Mixtures of inorganic and organic binding agents
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- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a molding sand binder for pump body sand casting, and relates to the technical field of pump casting. The molding sand binder is prepared by the following raw materials in parts by weight: 100-120 parts of clay, 13-17 parts of polyvinyl alcohol, 10-15 parts of Carbomer resins, 10-15 parts of carrageenan, 8-13 parts of palm oil, 6-10 parts of sodium alginate, 4-8 parts of butyl rubber, 4-8 parts of glucoside, 3-6 parts of crushed crude pearlite, 2-4 parts of soda ash, 2-4 parts of sodium polyacrylate, 1-2 parts of sodium chloride, 15-20 parts of polyethylene glycol, and 25-30 parts of butyl acetate. The molding sand binder is proper in viscosity, and can be easily and uniformly mixed with sand particles under the precondition of guaranteeing viscosity; and mixed molding sand is excellent in fluidity, easy to be molded and fast in hardening speed, and can be hardened after 3-5 seconds of placement without needing heating, so that energy is saved.
Description
Technical field:
The present invention relates to pump casting technology field, be specifically related to a kind of pump housing sand casting moulding sand binder.
Background technology:
Sand casting is a kind of casting method of producing foundry goods, and steel, iron and most of non-ferrous alloy casting are allAvailable sand mould casting method obtains. Because the Modeling Material that sand casting is used is cheap and easy to get, Casting mold manufacturingEasy, single-piece production to foundry goods, produce by batch and produce and all can adapt in a large number, for a long time, alwaysIt is the basic technology in Foundry Production. The basic raw material of manufacturing sand mold is casting model powder and moulding sand binder.For the sand mold and the core that make to make have certain intensity, in the time of carrying, mould assembly and pouring liquid metal notCause distortion or damage, generally will in casting, add moulding sand binder, loose sand grains is bonddFor molding sand. Common clay is as moulding sand binder, have advantages of cheap and easy to get, but its viscosity is limited,How many its water content directly affects the mouldability of molding sand, and moisture evaporation after chance high temperature, and molding sand easily goes outThe phenomenon that now ftractures, is out of shape.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of viscosity suitable, easy to use, high temperature resistantPump housing sand casting moulding sand binder.
Technical problem to be solved by this invention adopts following technical scheme to realize:
A kind of pump housing sand casting moulding sand binder, made by the raw material of following parts by weight:
Clay 100-120 part, polyvinyl alcohol 13-17 part, carbomer 10-15 part, carragheen 10-15Part, palm oil 8-13 part, sodium alginate 6-10 part, butyl rubber 4-8 part, glucoside 4-8 part,Crushed crude pearlite 3-6 part, soda ash 2-4 part, Sodium Polyacrylate 2-4 part, sodium chloride 1-2 part, poly-second twoAlcohol 15-20 part, butyl acetate 25-30 part;
Its preparation method is as follows:
(1) polyethylene glycol and butyl acetate are mixed, then add palm oil, carbomer and carragheen,Mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, obtains material I;
(2) in material I, add polyvinyl alcohol, butyl rubber and Sodium Polyacrylate while hot, after mixingSealing and standing 30min, obtains material II;
(3) in material II, add sodium alginate, glucoside and soda ash, stir and form after even slurryBe placed in 8-12h at 0-5 DEG C, then add clay, crushed crude pearlite and sodium chloride, fully mix.
Described carragheen needs through pretreatment before using, and its processing method is: Xiang Shuizhong adds 60-80 partCarragheen and 5-8 part nano silicon micronization, after mixing under microwave frequency 2450MHz, power 600WMicrowave treatment 10min, then add 7-11 part cyclodextrin and 3-6 part rice bran wax, continue microwave treatment 5min,Finally heating is condensed into the lotion of water content 15-20%.
The invention has the beneficial effects as follows:
(1) suitable viscosity can mix with sand grains easily under the prerequisite that ensures viscosity, and mixedSand fluidity is good, is easy to moulding;
(2) setting rate is fast, and the molding sand of moulding can harden after placing 3-5h, without heating, thus jointThe about energy;
(3) after sclerosis, intensity is high, can reduce gas generating capacity in pouring metal melt process, reduces the pump housing and producesThe probability of gas hole defect;
(4) be difficult for the moisture absorption and rotten, after mulling the up time long, and harmless, to environment withoutPollute.
Detailed description of the invention:
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understandSeparate, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
(1) 15 parts of polyethylene glycol and 25 parts of butyl acetates are mixed, then add 8 parts of palm oils, 15 partsCarbomer and 10 parts of carragheens, mixture is microwave place under microwave frequency 2450MHz, power 600WReason 15min, obtains material I;
(2) in material I, add 13 parts of polyvinyl alcohol, 5 parts of butyl rubbers and 2 parts of Sodium Polyacrylates while hot,Mix rear sealing and standing 30min, obtain material II;
(3) in material II, add 8 parts of sodium alginates, 6 portions of glucosides and 2 portions of soda ash, stir and form allHomogenate body is placed on 12h at 0-5 DEG C, then adds 100 parts of clays, 4 parts of crushed crude pearlites and 1 part of sodium chloride,Fully mix.
The pretreatment of carragheen: Xiang Shuizhong adds 60 parts of carragheens and 6 parts of nano silicon micronizations, after mixingMicrowave treatment 10min under microwave frequency 2450MHz, power 600W, then add 8 parts of cyclodextrin and 6Part rice bran wax, continues microwave treatment 5min, and finally heating is condensed into the lotion of water content 15-20%.
Embodiment 2
(1) 20 parts of polyethylene glycol and 30 parts of butyl acetates are mixed, then add 11 parts of palm oils, 10Part carbomer and 12 parts of carragheens, mixture is microwave under microwave frequency 2450MHz, power 600WProcess 15min, obtain material I;
(2) in material I, add 15 parts of polyvinyl alcohol, 8 parts of butyl rubbers and 4 parts of Sodium Polyacrylates while hot,Mix rear sealing and standing 30min, obtain material II;
(3) in material II, add 10 parts of sodium alginates, 4 portions of glucosides and 3 portions of soda ash, stir and formEven slurry is placed on 12h at 0-5 DEG C, then adds 120 parts of clays, 6 parts of crushed crude pearlites and 2 parts of sodium chloride,Fully mix.
The pretreatment of carragheen: Xiang Shuizhong adds 80 parts of carragheens and 8 parts of nano silicon micronizations, after mixingMicrowave treatment 10min under microwave frequency 2450MHz, power 600W, then add 10 parts of cyclodextrin and 4Part rice bran wax, continues microwave treatment 5min, and finally heating is condensed into the lotion of water content 15-20%.
More than show and described general principle of the present invention and principal character and advantage of the present invention. One's own professionThe technical staff of industry should understand, and the present invention is not restricted to the described embodiments, above-described embodiment and explanationThat in book, describes just illustrates principle of the present invention, without departing from the spirit and scope of the present invention,The present invention also has various changes and modifications, and these changes and improvements all fall into claimed model of the present inventionIn enclosing. The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a pump housing sand casting moulding sand binder, is characterized in that, former by following parts by weightMaterial is made:
Clay 100-120 part, polyvinyl alcohol 13-17 part, carbomer 10-15 part, carragheen 10-15Part, palm oil 8-13 part, sodium alginate 6-10 part, butyl rubber 4-8 part, glucoside 4-8 part,Crushed crude pearlite 3-6 part, soda ash 2-4 part, Sodium Polyacrylate 2-4 part, sodium chloride 1-2 part, poly-second twoAlcohol 15-20 part, butyl acetate 25-30 part;
Its preparation method is as follows:
(1) polyethylene glycol and butyl acetate are mixed, then add palm oil, carbomer and carragheen,Mixture is microwave treatment 15min under microwave frequency 2450MHz, power 600W, obtains material I;
(2) in material I, add polyvinyl alcohol, butyl rubber and Sodium Polyacrylate while hot, after mixingSealing and standing 30min, obtains material II;
(3) in material II, add sodium alginate, glucoside and soda ash, stir and form after even slurryBe placed in 8-12h at 0-5 DEG C, then add clay, crushed crude pearlite and sodium chloride, fully mix.
2. pump housing sand casting moulding sand binder according to claim 1, is characterized in that: instituteState before carragheen uses and need through pretreatment, its processing method is: Xiang Shuizhong adds 60-80 part carragheenWith 5-8 part nano silicon micronization, after mixing under microwave frequency 2450MHz, power 600W microwave placeReason 10min, then add 7-11 part cyclodextrin and 3-6 part rice bran wax, continue microwave treatment 5min, finally addHeat is condensed into the lotion of water content 15-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074642.5A CN105583355A (en) | 2016-02-01 | 2016-02-01 | Molding sand binder for pump body sand casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074642.5A CN105583355A (en) | 2016-02-01 | 2016-02-01 | Molding sand binder for pump body sand casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105583355A true CN105583355A (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610074642.5A Pending CN105583355A (en) | 2016-02-01 | 2016-02-01 | Molding sand binder for pump body sand casting |
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| Country | Link |
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| CN (1) | CN105583355A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111884A (en) * | 2016-08-18 | 2016-11-16 | 江阴联华铸造有限公司 | A kind of automobile engine casting core sand and preparation method thereof |
| CN107457345A (en) * | 2017-08-12 | 2017-12-12 | 合肥市田源精铸有限公司 | A kind of clay green-sand without coal dust |
| CN108856638A (en) * | 2018-08-30 | 2018-11-23 | 安徽惠明机械制造有限公司 | A kind of machine casting moulding sand binder |
| CN108941441A (en) * | 2018-09-26 | 2018-12-07 | 安徽江杰实业有限公司 | A kind of foundry clay reinforcing agent and preparation method |
| CN109093060A (en) * | 2018-08-30 | 2018-12-28 | 安徽惠明机械制造有限公司 | A kind of high-strength sand and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| US3960798A (en) * | 1974-08-26 | 1976-06-01 | Hitachi, Ltd. | Process for regulating hardening speed of self-hardening mold |
| CN101302410A (en) * | 2008-06-04 | 2008-11-12 | 江南大学 | Preparation of graft modification protein-based adhesive |
| CN101475785A (en) * | 2009-01-22 | 2009-07-08 | 济南圣泉集团股份有限公司 | Binder and preparation thereof |
| CN102407278A (en) * | 2011-11-29 | 2012-04-11 | 朱小英 | Method for preparing coating for metal molds for magnesium-alloy low-pressure casting |
| CN104231692A (en) * | 2014-09-03 | 2014-12-24 | 天长市开林化工有限公司 | Composite organic silicon coating |
-
2016
- 2016-02-01 CN CN201610074642.5A patent/CN105583355A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960798A (en) * | 1974-08-26 | 1976-06-01 | Hitachi, Ltd. | Process for regulating hardening speed of self-hardening mold |
| CN101302410A (en) * | 2008-06-04 | 2008-11-12 | 江南大学 | Preparation of graft modification protein-based adhesive |
| CN101475785A (en) * | 2009-01-22 | 2009-07-08 | 济南圣泉集团股份有限公司 | Binder and preparation thereof |
| CN102407278A (en) * | 2011-11-29 | 2012-04-11 | 朱小英 | Method for preparing coating for metal molds for magnesium-alloy low-pressure casting |
| CN104231692A (en) * | 2014-09-03 | 2014-12-24 | 天长市开林化工有限公司 | Composite organic silicon coating |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111884A (en) * | 2016-08-18 | 2016-11-16 | 江阴联华铸造有限公司 | A kind of automobile engine casting core sand and preparation method thereof |
| CN107457345A (en) * | 2017-08-12 | 2017-12-12 | 合肥市田源精铸有限公司 | A kind of clay green-sand without coal dust |
| CN108856638A (en) * | 2018-08-30 | 2018-11-23 | 安徽惠明机械制造有限公司 | A kind of machine casting moulding sand binder |
| CN109093060A (en) * | 2018-08-30 | 2018-12-28 | 安徽惠明机械制造有限公司 | A kind of high-strength sand and preparation method thereof |
| CN108941441A (en) * | 2018-09-26 | 2018-12-07 | 安徽江杰实业有限公司 | A kind of foundry clay reinforcing agent and preparation method |
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Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |