CN106670378B - One kind uphanging water base cast paint of buoyancy and preparation method thereof - Google Patents
One kind uphanging water base cast paint of buoyancy and preparation method thereof Download PDFInfo
- Publication number
- CN106670378B CN106670378B CN201710110725.XA CN201710110725A CN106670378B CN 106670378 B CN106670378 B CN 106670378B CN 201710110725 A CN201710110725 A CN 201710110725A CN 106670378 B CN106670378 B CN 106670378B
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- CN
- China
- Prior art keywords
- buoyancy
- water
- cast paint
- base cast
- water base
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/042—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling using a particular milling fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses one kind to uphang water base cast paint of buoyancy and preparation method thereof, each component is as follows by weight percentage: refractory aggregate accounts for 39 ~ 49%, sodium bentonite 0.99 ~ 1.6%, hydroxypropyl methyl cellulose (abbreviation HPMC) 0.04 ~ 0.09%, sodium carboxymethylcellulose (abbreviation CMC) 0.6 ~ 0.9%, polyvinyl alcohol (abbreviation PVA) 0.14 ~ 0.23%, defoaming agent 0.2 ~ 0.4%, water 49 ~ 58%.It is mixed after all powders are weighed respectively in proportion, part water is taken to be added in agitator, start blender, powder is gradually added into wherein, is stirred 30 ~ 60 minutes, is stirred into paste, be slow added into remaining water, defoaming agent is then added, is stirred 10 ~ 20 minutes,.It is still 100% that the present invention prepared, which uphangs suspensibility after the water base cast paint of buoyancy is stored for a long time, common water base cast paint suspension deficiency is overcome, the shortcomings that cannot saving for a long time.
Description
Technical field
The present invention relates to a kind of sand casting coating, and in particular to one kind uphangs the water base cast paint of buoyancy and its preparation side
Method.
Background technique
The water base cast paint of tradition measures or compares its suspension and usually measured with the shorter time, such as 2 small
When or 12 hours or 24 hours, for the storage period of coating (generally in terms of the moon), this time is far from satisfying
It is required that coating has been more than after the above-mentioned time or hardened, it is difficult to stir evenly again or aggregate sinks in doughy state, out
It is now layered, needing to stir again just can make it again uniform.For this kind of suspension containing solid particle, ideal suspension
It should be that coating does not occur to precipitate or be layered when permanently storing.In the case where not stirring again, arbitrarily position is taken at any time
A part of coating all has and whole identical viscosity, density, solid content etc. out.Especially variable grain is usually contained in aggregate
Material, coarse particle often be easier sink, therefore make coating have super suspension it is particularly important, the present invention passes through painting
Material prepares a kind of permanent uniformly type with when preparation process and uphangs buoyancy cast paint.
Summary of the invention
Present invention aim to greatly improve its suspension for water base cast paint suspension deficiency.Due to normal
It is 100% that the suspensibility of rule coating, which is generally only able to maintain in several hours or tens hours, after long-term storage, suspensibility meeting
It reduces, or even can be hardened, seriously affects the performance of coating.The method of coating is prepared generally by colloid mill or ball mill or is mixed
Mill etc..
The purpose of the present invention is realized by the following technologies:
One kind uphanging the water base cast paint of buoyancy, composed of the following components by weight percentage:
The refractory aggregate is zirconium English powder, mullite powder, schmigel, bauxite, chromite powder, graphite powder, silica flour
One or more of arbitrary proportion mixture.
The hydroxypropyl methyl cellulose is cold water-soluble, and granularity is 600 mesh, viscosity 50mPa.s.
The polyvinyl alcohol is cold water-soluble, and granularity is 600 mesh, and viscosity is 10~15mPa.s.
The granularity of the sodium bentonite is 400 mesh.
The sodium carboxymethylcellulose is cold water-soluble, and granularity is 600 mesh, and viscosity is less than 800mPa.s.
A kind of preparation method for uphanging the water base cast paint of buoyancy, includes the following steps:
(1) by the refractory aggregate of 39~49 parts by weight, the sodium bentonite of 0.99~1.6 parts by weight, 0.04~0.09 weight
Measure the poly- second of the hydroxypropyl methyl cellulose of part, the sodium carboxymethylcellulose of 0.6~0.9 parts by weight, 0.14~0.23 parts by weight
Enol pours into batch mixer together, mixes well to obtain mixture, takes out spare；
(2) water of 22~29 parts by weight is poured into blender, starts blender, then step (1) is prepared
Mixture is slowly added into blender, after adding, continues stirring 30~60 minutes, and mixture is in paste；
(3) water of 20~36 parts by weight is slowly added into blender, the defoaming agent of 0.2~0.4 parts by weight is then added,
Continue stirring 10~20 minutes,.
Technical principle of the invention is as follows: first is that water-soluble additives different using several performances simultaneously, such as: HPMC,
CMC, PVA, the cheap sodium bentonite of suspending agent, binder PVA, since PVA and HPMC has certain surface-active concurrently
It acts on, common surfactant JFC is not used in coating, other activating agents are not used, because activating agent can be stirred in coating yet
A large amount of bubble is generated during mixing, seriously affects the quality of coating in whipping process；Second is that paying attention to when stating material in use
Its powder particles is relatively thin, and more finely divided property is better, and dissolubility is also more abundant, and obtained dispersion liquid is also more uniform, and
Material will be mixed equably in advance before use, certain substance not made to accumulate locally；Third is that unique stirring technique:
Be embodied in the following, be first start stirring when water to control it is less, in this way under the conditions of identical powder additional amount, stirring make
Firmly larger, material is easier to be uniformly dispersed, and certainly, moisture can not be very little, otherwise also will affect the dissolution of material, followed by
The addition speed of material is appropriate, cannot be too fast, and addition is too fast, influences the speed of material dissolution and the uniformity of dispersion, material
It is easy conglomeration, and stir resistance can sometime surge, causes stirring motor to overload, or even burn motor, it can not be too
Slowly, the material being otherwise first added can drift about in the water since the chance for being stirred machine blade contact is few, conglomeration, it is difficult to dissolve and equal
It is even.
The present invention has the following advantages and beneficial effects:
(1) suspending agent of the present invention selects sodium bentonite, cheap and easy to get；Binder is selected and HPMC has certain surface concurrently
The PVA of active function is avoided in whipping process and a large amount of bubbles is occurred.
(2) preparation process of the present invention is unique, avoids some common problems in preparation process, is prepared with shirtsleeve operation
The water base cast paint of buoyancy is gone out to uphang.
(3) suspensibility after the water base cast paint of buoyancy is stored for a long time of uphanging that the present invention prepares still is 100%, is overcome
Common water base cast paint suspension is insufficient, the shortcomings that cannot saving for a long time.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
(1) prepare 49 kilograms of zirconium English powder, it is spare；
(2) prepare 0.99 kilogram of sodium bentonite, HPMC50 grams, CMC600 grams, PVA160 grams, for use；
(3) prepare 200 grams of defoaming agent, 49 kilograms of water；
(4) powder that step (1) and step (2) prepare is poured into batch mixer, mixes well to obtain mixture, taken out standby
With；
(5) 25 kilograms of water for taking step (3) to prepare pour into blender；
(6) start blender, mixture prepared by step (4) is slowly added into blender, after adding, stir 40 points
Clock, mixture are in paste；
(7) it does not shut down, remaining water is slowly added into blender for 24 kilograms, defoaming agent is then added, continues stirring 10
Minute, obtain the coating of required viscosity.
Coating suspension rates are as follows:
Table 1
Embodiment 2
(1) prepare 43 kilograms of zirconium English powder, it is spare；
(2) prepare 1.57 kilograms of sodium bentonite, HPMC90 grams, CMC750 grams, PVA230 grams, for use；
(3) prepare 360 grams of defoaming agent, 54 kilograms of water；
(4) powder that step (1) and step (2) prepare is poured into batch mixer, mixes well to obtain mixture, taken out standby
With；
(5) 27 kilograms of water for taking step (3) to prepare pour into blender；
(6) start blender, mixture prepared by step (4) is slowly added into blender, after adding, stir 60 points
Clock, mixture are in paste；
(7) it does not shut down, remaining water is slowly added into blender for 27 kilograms, defoaming agent is then added, continues stirring 15
Minute, obtain the coating of required viscosity.
Coating suspension rates are as follows:
Table 2
Embodiment 3
(1) prepare 39 kilograms of zirconium English powder, it is spare；
(2) 1.6 kilograms of sodium bentonite of preparation, HPMC40 grams, CMC880 grams, PVA160 grams, for use；
(3) prepare 320 grams of defoaming agent, 58 kilograms of water；
(4) powder that step (1) and step (2) prepare is poured into batch mixer, mixes well to obtain mixture, taken out standby
With；
(5) 29 kilograms of water for taking step (3) to prepare pour into blender；
(6) start blender, mixture prepared by step (4) is slowly added into blender, after adding, stir 30 points
Clock is in paste；
(7) it does not shut down, remaining water is slowly added into blender for 29 kilograms, defoaming agent is then added, continues stirring 20
Minute, obtain the coating of required viscosity.
Coating suspension rates are as follows:
Table 3
Embodiment 4
(1) prepare 40 kilograms of zirconium English powder, it is spare；
(2) 1.47 kilograms of sodium bentonite of preparation, HPMC90 grams, CMC900 grams, PVA140 grams, for use；
(3) prepare 400 grams of defoaming agent, 57 kilograms of water；
(4) powder that step (1) and step (2) prepare is poured into batch mixer, mixes well to obtain mixture, taken out standby
With；
(5) 28 kilograms of water for taking step (3) to prepare pour into blender；
(6) start blender, mixture prepared by step (4) is slowly added into blender, after adding, stir 60 points
Clock, mixture are in paste；
(7) it does not shut down, remaining water is slowly added into blender for 29 kilograms, defoaming agent is then added, continues stirring 20
Minute, obtain the coating of required viscosity.
Coating suspension rates are as follows:
Table 4
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
Knowing the personnel of this technology can all carry out modifications and changes to above-described embodiment without prejudice under spirit and scope of the invention.Cause
This, the technical field those having ordinary skill in the art is completed without departing from the spirit and technical ideas disclosed in the present invention such as
All equivalent modifications or change should be covered by the claims of the present invention.
Claims (8)
1. one kind uphangs the water base cast paint of buoyancy, which is characterized in that composed of the following components by weight percentage:
2. according to claim 1 uphang the water base cast paint of buoyancy, it is characterised in that: the refractory aggregate is zirconium English
The arbitrary proportion of one or more of powder, mullite powder, schmigel, bauxite, chromite powder, graphite powder, silica flour mixes
Object.
3. according to claim 2 uphang the water base cast paint of buoyancy, it is characterised in that: the granularity of the refractory aggregate is
325 mesh.
4. according to claim 1 uphang the water base cast paint of buoyancy, it is characterised in that: the hydroxypropyl methyl fiber
Element is cold water-soluble, and granularity is 600 mesh, viscosity 50mPa.s.
5. according to claim 1 uphang the water base cast paint of buoyancy, it is characterised in that: the polyvinyl alcohol is cold water
Molten type, granularity are 600 mesh, and viscosity is 10~15mPa.s.
6. according to claim 1 uphang the water base cast paint of buoyancy, it is characterised in that: the granularity of the sodium bentonite
For 400 mesh.
7. according to claim 1 uphang the water base cast paint of buoyancy, it is characterised in that: the sodium carboxymethylcellulose
For cold water-soluble, granularity is 600 mesh, and viscosity is less than 800mPa.s.
8. a kind of such as the described in any item preparation methods for uphanging the water base cast paint of buoyancy of claim 1-7, which is characterized in that
Include the following steps:
(1) by the refractory aggregate of 39~49 parts by weight, the sodium bentonite of 0.99~1.6 parts by weight, 0.04~0.09 parts by weight
Hydroxypropyl methyl cellulose, the sodium carboxymethylcelluloses of 0.6~0.9 parts by weight, 0.14~0.23 parts by weight polyvinyl alcohol
It pours into batch mixer together, mixes well to obtain mixture, take out spare；
(2) water of 22~29 parts by weight is poured into blender, starts blender, the mixing that then step (1) is prepared
Material is slowly added into blender, after adding, continues stirring 30~60 minutes, and mixture is in paste；
(3) water of 20~36 parts by weight is slowly added into blender, the defoaming agent of 0.2~0.4 parts by weight is then added, continued
Stirring 10~20 minutes,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110725.XA CN106670378B (en) | 2017-02-28 | 2017-02-28 | One kind uphanging water base cast paint of buoyancy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110725.XA CN106670378B (en) | 2017-02-28 | 2017-02-28 | One kind uphanging water base cast paint of buoyancy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670378A CN106670378A (en) | 2017-05-17 |
| CN106670378B true CN106670378B (en) | 2019-02-26 |
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| CN201710110725.XA Expired - Fee Related CN106670378B (en) | 2017-02-28 | 2017-02-28 | One kind uphanging water base cast paint of buoyancy and preparation method thereof |
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| CN107081414A (en) * | 2017-06-27 | 2017-08-22 | 董永明 | A kind of casting iron pan centrifugal casting machine and its centrifugal casting process |
| CN109396327A (en) * | 2018-12-18 | 2019-03-01 | 苏州美迈快速制造技术有限公司 | A kind of water-based dip applicating paint and preparation method thereof for 3D printing sand mold |
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| US5573982A (en) * | 1994-03-05 | 1996-11-12 | Mitsubishi Chemical Basf Company Limited | Slurry composition, shaping method using the same, and fired body |
| CN1666828A (en) * | 2005-01-18 | 2005-09-14 | 湖北工业大学 | Anti-seepage burnon casting paint made from alcohol base or aqueous sand powder |
| CN101319104B (en) * | 2008-06-20 | 2010-09-08 | 中国矿业大学(北京) | Composite suspending agent of alcohol-based dry powder coating, preparation method of composite suspending agent and prepared coating |
| CN101428328B (en) * | 2008-12-06 | 2010-06-30 | 华中科技大学 | Powdery paint for lost foam casting of cast iron |
| CN105935742B (en) * | 2016-05-31 | 2018-09-14 | 湖北工业大学 | A kind of powdery cast paint and preparation method thereof and application method |
| CN105880465B (en) * | 2016-07-05 | 2018-06-19 | 湖北工业大学 | A kind of lost foam paint paste additive and preparation method |
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Granted publication date: 20190226 |