CN105268911B - A kind of highly-breathable lost foam paint and preparation method thereof - Google Patents
A kind of highly-breathable lost foam paint and preparation method thereof Download PDFInfo
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- CN105268911B CN105268911B CN201510704085.6A CN201510704085A CN105268911B CN 105268911 B CN105268911 B CN 105268911B CN 201510704085 A CN201510704085 A CN 201510704085A CN 105268911 B CN105268911 B CN 105268911B
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Abstract
The invention provides a kind of highly-breathable lost foam paint prepared by casting waste and old resin sand and preparation method thereof, including following components：Cast waste and old resin sand, sial system refractory aggregate, crystalline flake graphite, polystyrene resin beads, aluminium powder, oxidant, fluoride, carbon fiber, suspending agent, binding agent, surfactant, defoamer, water.Wherein, waste and old 100 parts of resin sand, 60 100 parts of sial system refractory aggregate, 5 25 parts of crystalline flake graphite, 26 parts of polystyrene resin beads, 13 parts of aluminium powder, 2 10 parts of oxidant, 15 parts of fluoride, 15 parts of carbon fiber, 3 10 parts of suspending agent, 5 15 parts of binding agent, 0.2 0.5 parts of surfactant, 0.5 1.5 parts of defoamer, 80 120 parts of water are cast.The lost foam paint of the present invention is using the waste and old resin sand of casting as Main Refractory, it is effectively utilized foundry waste, meet " Green foundry " and the sustainable theory of circulation, and solve the problems, such as carbon defects, the shrink defects of waste and old resin sand lost foam paint, have a good application prospect.
Description
Technical field
The present invention relates to cast paint preparation field, more particularly to a kind of highly-breathable prepared by casting waste and old resin sand
Lost foam paint.
Background technology
Casting industry produces substantial amounts of waste sand every year, in recent years, because environmental issue becomes increasingly conspicuous, domestic many castings
Factory is faced with the environmental pressure of sternness.With the development of industry, foundry industry starts to change to " green " casting direction, large quantities of castings
Make factory's installation casting resin sand sand regeneration treatment production line.It is most of directly to discharge but the old sand after handling focuses on, it is few
Part is used for the structure filling material of some road engineering projects, recycles caused value relatively low.
Cast the SiO containing 60%-80% in waste and old resin sand2, 20-40% Al2O3And other a small amount of materials, thus have
There is certain refractoriness, it is compound by being additionally properly added other fire resistant infillings progress, can be as the fire resisting bone of cast paint
Material, it is possible to the production for cast paint.At present, phase of the waste and old resin sand for foundry facing production will be cast
Patented technology is closed, such as Publication No. CN 104741515A patent of invention, it discloses " prepared using resin sand regeneration dust
The technology contents of cast paint, to improve its cyclic utilization rate ", it simply will simply cast waste and old resin sand and be used for coating
Prepare, be not related to prepare the lost foam paint with requirements such as highly-breathables, the gas permeability for more not solving such coating is asked
Topic（Cause casting carbon defects）And caused by the gasification of waste sand surface resin the problem of molten iron temperature reduction（Casting cold shut is caused to lack
Sunken or misrun）, meanwhile, Publication No. CN 101259518A are similar therewith with CN101423792A patent.Further
, the A of Publication No. CN 102672098 patent of invention, which discloses, prepares lost foam paint, has the feature of good permeability, but
It does not have the clearly technical problem, and provides the solution for solving the ventilative sex chromosome mosaicism of above-mentioned lifting coating, in addition, it is important that
Be some the A of patent CN 102672098 and be not used casting waste sand be used as fire resistant infilling, but use routine fire resisting bone
Expect the lost foam paint prepared, the requirement of its permeability is less than the lost foam paint prepared with casting waste sand, therefore, the latter
Because aggregate accumulation is close, gas permeability requirements are very high, so " highly-breathable " is two different concepts.Come with regard to testing
See, the gas permeability of common lost foam paint just can reach requirement between 70-90, and the disappearance die coating prepared with casting waste sand
Material, its gas permeability must could meet field requirement more than 120.
In summary, under the limitation of technical merit at this stage, application of the waste and old resin sand in terms of cast paint is cast only
It is limited to the production of traditional sand casting coating, and is unable to normal use in lost foam paint.First, waste and old resin sand is cast to pass through
After breaking, regenerating, particle degree of irregularity substantially increases, and heap density improves, and the gas permeability straight line of material declines, thus does not take it
Its measure and the coating directly configured, its gas permeability can not meet the requirement of lost foam casting, it will make casting produce carbon lack
Fall into.Secondly, the unfired waste and old resin sand of casting, the tree do not decomposed completely by particle surface cladding only with machinery regeneration
Adipose membrane, under pouring condition, resin film gasification, which is decomposed, absorbs substantial amounts of heat, causes iron liquid to cool down too early, and then be possible to produce
Shrink defects.Therefore, how using the lost foam paint for casting waste and old resin sand and preparing highly-breathable solution is needed badly as this area
Certainly the problem of.
The content of the invention
The present invention in view of the shortcomings of the prior art, designs and develops a kind of height prepared by casting waste and old resin sand and breathe freely
Property（Hot permeability is good）, cost is cheap, environment-friendly lost foam paint, effectively prevent casting from producing carbon defects and contraction
Defect.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of highly-breathable lost foam paint prepared by casting waste and old resin sand, it is characterised in that including following components：
Cast waste and old resin sand, sial system refractory aggregate, crystalline flake graphite, polystyrene resin beads, aluminium powder, oxidant, fluoride, carbon
Fiber, suspending agent, binding agent, surfactant, defoamer, water.
Further, wherein, the ratio of each component is：Cast waste and old 100 parts of resin sand, sial system refractory aggregate 60-100
Part, crystalline flake graphite 5-25 parts, polystyrene resin beads 2-6 parts, aluminium powder 1-3 parts, oxidant 2-10 parts, fluoride 1-5 parts, carbon
Fiber 1-5 parts, suspending agent 3-10 parts, binding agent 5-15 parts, surfactant 0.2-0.5 parts, defoamer 0.5-1.5 parts, water 80-
120 parts.
Further, the waste and old resin sand of casting is the mechanical regenerating resin sand without high-temperature roasting, and particle mesh number is
The mesh of 100 mesh -200.
Further, sial system refractory aggregate be alumine, it is M70 mullites, one or more of in Brown Alundum,
For alundum (Al2O3) content more than 60%, particle mesh number is the mesh of 100 mesh -200 in sial system refractory aggregate.
Further, waste and old resin sand, sial system refractory aggregate, crystalline flake graphite common combination are cast, as the resistance to of coating
Fiery filler systems.
Further, a diameter of 40-150 μm of the polystyrene resin beads.
Further, the oxidant is in di-iron trioxide, ferroso-ferric oxide, manganese dioxide, potassium nitrate, potassium permanganate
It is one or more of, the fluoride is sodium fluoride, calcirm-fluoride, one or more of in cryolite.
Further, the polystyrene resin beads can use acetal resin particle or polyethylene-acrylate tree
Fat particle replaces.
Further, the phosphorus content of the carbon fiber is more than 95%, between length is 50-200 μm.
Meanwhile the invention provides a kind of using casting the method that waste and old resin sand prepares highly-breathable lost foam paint,
It is characterised in that it includes following steps：
1) water, defoamer, surfactant are added into Scattered Kettle, then adds suspending agent under high-speed stirred, disperses 10
Minute；
2) polystyrene resin beads, carbon fiber, binding agent are added to Scattered Kettle, disperseed 10 minutes；
3) waste and old resin sand, sial system refractory aggregate, crystalline flake graphite are cast to Scattered Kettle addition, disperseed 20 minutes；
4) aluminium powder, oxidant, fluoride are added to Scattered Kettle, disperseed 10 minutes；
5) disperse after terminating, discharging packaging.
The beneficial effects of the present invention are：
（1）The coating has good high temperature venting performance, ensure that coating has good deslagging ability, is poured in high temperature
Caused eps foam pyrolysis product can be smoothly discharged out outside die cavity under the conditions of casting, prevented carbon slag and be involved in molten iron or attachment
In the possibility of cast(ing) surface, the generation of casting carbon defects is effectively prevented, lifts casting quality.
（2）The coating has good heat-insulating property and certain heat compensation effect, reduces molten iron in casting cycle
Thermal loss, alleviate molten steel solidification, so as to avoid casting from shrink defects occur.
（3）The coating because using waste and old resin sand is cast as Main Refractory, being effectively utilized foundry waste, into
This is cheap, meets " Green foundry " and the sustainable theory of circulation, and solves the waste and old resin sand lost foam paint of casting
Carbon defects, shrink defects problem, have a good application prospect and promotional value.
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.It is applied to the preparation of lost foam paint in order to which waste and old resin sand will be cast, and meets ventilative
Property and the requirement that keeps of temperature, the present invention improved in the prior art on the basis of coating components, particular content is as follows：
As it was previously stated, in the prior art, cast discarded sand and two technological difficulties be present for lost foam casting coating, one
It is：The resin of discarded sand surface parcel issues angryization in molten iron casting condition, molten iron temperature can be caused to reduce, and then cause to pour
The defects of deficiency, cold shut；Second,：The degree of irregularity of waste resin sand particle is significantly larger than common refractory aggregate, and granularity
Skewness, thus tight ness rating height is accumulated, coating's permeability is poor, can cause the generation of casting carbon defects.
In order to solve first problem, the present invention introduces special material in coating, it is discharged under pouring temperature
Extra heat, so as to compensate the loss of this partial heat, ensure that molten iron temperature will not occur substantially to reduce, eliminate waste sand and disappear
The defects of issuable misrun of die coating material, cold shut.Specifically, two class materials are introduced in coating, therebetween can be in height
Reacted under the conditions of temperature, and release substantial amounts of heat, there is provided compensation, and to ensure this two classes material in normal temperature condition following table
It is now inertia, does not react.Preferably, in embodiment of the invention, introducing oxidant, aluminium powder in coating, this two groups
Divide and specific reaction occurs at high temperature, release heat, there is provided heat compensation, and some fluorine class chemical combination specified are added in coating
Thing, it can act on above-mentioned reaction, increase the reactivity of aluminium powder and oxide, improve rate of heat release and heat compensation efficiency.
In order to solve Second Problem, the present invention introduces a kind of macromolecule resin granular materials, the granular material in coating
Material is stablized at normal temperatures and under coating drying temperature, and physicochemical change does not occur, can under the hot conditions of molten iron casting
Generation gasification cracking reacts, and so as to form microscopic holes in the coating, improves the high temperature venting performance of coating, ensures EPS cracking
Product can smoothly discharge die cavity, reduce the occurrence probability of casting carbon defects.
In addition, adding carbon fiber in inventive formulation, the solution to above-mentioned two problems also functions to certain effect.First,
Carbon fiber has good function of heat insulation, and thermal conductivity is very low, can effectively reduce the thermal conductivity factor of coating, can reduce molten iron
The speed of cooling；Secondly, carbon fiber has the bar-shaped microstructure of special length, promotes the generation of microcosmic connected region, so as to rise
To the effect of the permeability of increase coating.
To sum up, the invention provides a kind of highly-breathable lost foam paint prepared by casting waste and old resin sand, including with
Lower constituent：Cast waste and old resin sand, sial system refractory aggregate, crystalline flake graphite, polystyrene resin beads, aluminium powder, oxidation
Agent, fluoride, carbon fiber, suspending agent, binding agent, surfactant, defoamer, water.Preferably, each component ratio is：Casting
Waste and old 100 parts of resin sand, sial system refractory aggregate 60-100 parts, crystalline flake graphite 5-25 parts, polystyrene resin beads 2-6 parts,
Aluminium powder 1-3 parts, oxidant 2-10 parts, fluoride 1-5 parts, carbon fiber 1-5 parts, suspending agent 3-10 parts, binding agent 5-15 parts, surface
Activating agent 0.2-0.5 parts, defoamer 0.5-1.5 parts, water 80-120 parts.
Now the purposes and preferred parameter of each component are described in detail：
The waste and old resin sand of casting is the mechanical regenerating resin sand without high-temperature roasting, and particle mesh number is 100 mesh -200
Mesh, optimal particle diameter are 150 mesh.Sial system refractory aggregate is fire resisting bone of the alundum (Al2O3) content more than 60%
Material, specially one or more of in alumine, M70 mullites, Brown Alundum, particle mesh number is the mesh of 100 mesh -200, most preferably
Particle diameter be 150 mesh.Waste and old resin sand, sial system refractory aggregate, crystalline flake graphite common combination are cast, as the resistance to of coating
Fiery filler systems.Crystalline flake graphite and alumine or mullite are added in waste and old resin sand, aggregate system can be improved
Refractoriness, reach anti-burnon requirement.A diameter of 40-150 μm of the polystyrene resin beads, optimal particle is straight
Footpath is 100 μm.Under molten steel pouring temperature, the polystyrene resin beads added gasify, and form microscopic holes structure, so as to
The high temperature venting performance of coating is lifted, coating highly-breathable is assigned, has prevented the generation of casting carbon defects.The oxidant is three
Aoxidize one or more of in two iron, ferroso-ferric oxide, manganese dioxide, potassium nitrate, potassium permanganate.Described aluminium powder and oxidant
Exothermic reaction can occur under pouring condition, there is provided heat, the resin film on waste and old resin sand surface can be compensated in time and gathered
The heat that polyglass particle gasifies and consumed, will not cause molten iron quickly to cool down, so as to avoid casting from producing shrink defects.
The fluoride is one or more of in sodium fluoride, calcirm-fluoride, cryolite.The addition of these villiaumites can effectively strengthen coating
The reactivity of middle aluminium powder, improve the speed of exothermic reaction.The phosphorus content of the carbon fiber is more than 95%, and length is 50-200 μ
Between m.The addition of carbon fiber not only acts as the effect of insulation, is effectively increased high temperature hold time, reduces casting and shrinks and inclines
To, and because the special club shaped structure of carbon fiber, the permeability and high-temperature behavior of coating can be increased to a certain extent.
In addition, described polystyrene resin beads can with other plastic grains such as acetal resin particle, polyethylene-
Acrylate particle replaces.
In the application of reality, the specific preparation of the above-mentioned highly-breathable lost foam paint prepared by casting waste and old resin sand
Method comprises the following steps：1. adding water, defoamer, surfactant into Scattered Kettle, then add suspending under high-speed stirred
Agent, disperse 10 minutes；2. adding polystyrene resin beads, carbon fiber, binding agent to Scattered Kettle, disperse 10 minutes；3. to point
Dissipate kettle addition and cast waste and old resin sand, sial system refractory aggregate, crystalline flake graphite, disperse 20 minutes；4. to Scattered Kettle add aluminium powder,
Oxidant, fluoride, disperse 10 minutes, disperse after terminating, discharging packaging.
It is the embodiment of preferred parameter below：
Embodiment one：
Cast waste and old 100 parts of resin sand, 80 parts of M70 mullites, 15 parts of crystalline flake graphite, 4 parts of polystyrene resin beads, aluminium
2 parts of powder, 5 parts of di-iron trioxide, 3 parts of sodium fluoride, 3 parts of carbon fiber, 6 parts of suspending agent, 10 parts of binding agent, 0.3 part of surfactant,
1 part of defoamer, 100 parts of water.
1. adding 100 parts of water, 1 part of defoamer, 0.3 part of surfactant into Scattered Kettle, then added under high-speed stirred
6 parts of suspending agent, disperse 10 minutes；
2. adding 4 parts of polystyrene resin beads, 3 parts of carbon fiber, 10 parts of binding agent to Scattered Kettle, disperse 10 minutes；
3. casting waste and old resin sand 100,80 parts of M70 mullites, 15 parts of crystalline flake graphite to Scattered Kettle addition, disperse 20 points
Clock；
4. adding 2 parts of aluminium powder, 5 parts of di-iron trioxide, 3 parts of sodium fluoride to Scattered Kettle, disperse 10 minutes, disperse after terminating,
Discharging packaging.
Embodiment two：
Cast waste and old 100 parts of resin sand, 60 parts of alumine, 25 parts of crystalline flake graphite, 5 parts of polystyrene resin beads, aluminium
2 parts of powder, 8 parts of ferroso-ferric oxide, 5 parts of calcirm-fluoride, 2 parts of carbon fiber, 3 parts of suspending agent, 13 parts of binding agent, 0.5 part of surfactant,
1.5 parts of defoamer, 120 parts of water.
1. adding 100 parts of water, 1.5 parts of defoamer, 0.5 part of surfactant into Scattered Kettle, then add under high-speed stirred
Add 3 parts of suspending agent, disperse 10 minutes；
2. adding 5 parts of polystyrene resin beads, 2 parts of carbon fiber, 13 parts of binding agent to Scattered Kettle, disperse 10 minutes；
3. casting waste and old resin sand 100,60 parts of alumine, 25 parts of crystalline flake graphite to Scattered Kettle addition, disperse 20 points
Clock；
4. adding 2 parts of aluminium powder, 8 parts of ferroso-ferric oxide, 5 parts of calcirm-fluoride to Scattered Kettle, disperse 10 minutes, disperse after terminating,
Discharging packaging.
Embodiment three：
Cast waste and old 100 parts of resin sand, 90 parts of Brown Alundum, 10 parts of crystalline flake graphite, 6 parts of polystyrene resin beads, aluminium powder 1
Part, 10 parts of manganese dioxide, 3 parts of cryolite, 5 parts of carbon fiber, 10 parts of suspending agent, 10 parts of binding agent, 0.3 part of surfactant,
1.5 parts of defoamer, 90 parts of water.
1. adding 90 parts of water, 1.5 parts of defoamer, 0.3 part of surfactant into Scattered Kettle, then add under high-speed stirred
Add 10 parts of suspending agent, disperse 10 minutes；
2. adding 6 parts of polystyrene resin beads, 5 parts of carbon fiber, 10 parts of binding agent to Scattered Kettle, disperse 10 minutes；
3. casting waste and old resin sand 100,90 parts of Brown Alundum, 10 parts of crystalline flake graphite to Scattered Kettle addition, disperse 20 minutes；
4. adding 1 part of aluminium powder, 10 parts of manganese dioxide, 3 parts of cryolite to Scattered Kettle, disperse 10 minutes, disperse to terminate
Afterwards, discharging packaging.
Example IV：
Cast waste and old 100 parts of resin sand, 100 parts of alumine, 5 parts of crystalline flake graphite, 2 parts of polystyrene resin beads, aluminium
3 parts of powder, 10 parts of potassium nitrate, 3 parts of sodium fluoride, 5 parts of carbon fiber, 10 parts of suspending agent, 15 parts of binding agent, 0.2 part of surfactant, disappear
0.5 part of infusion, 80 parts of water.
1. adding 80 parts of water, 0.5 part of defoamer, 0.2 part of surfactant into Scattered Kettle, then add under high-speed stirred
Add 10 parts of suspending agent, disperse 10 minutes；
2. adding 2 parts of polystyrene resin beads, 5 parts of carbon fiber, 15 parts of binding agent to Scattered Kettle, disperse 10 minutes；
3. casting waste and old resin sand 100,100 parts of alumine, 5 parts of crystalline flake graphite to Scattered Kettle addition, disperse 20 points
Clock；
4. adding 3 parts of aluminium powder, 10 parts of potassium nitrate, 3 parts of sodium fluoride to Scattered Kettle, disperse 10 minutes, disperse after terminating, go out
Material packaging.
Embodiment five：
Cast waste and old 100 parts of resin sand, 60 parts of M70 mullites, 20 parts of crystalline flake graphite, 3 parts of polystyrene resin beads, aluminium
2 parts of powder, 3 parts of potassium permanganate, 5 parts of cryolite, 3 parts of carbon fiber, 7 parts of suspending agent, 10 parts of binding agent, 0.5 part of surfactant,
1.5 parts of defoamer, 110 parts of water.
1. adding 110 parts of water, 1.5 parts of defoamer, 0.5 part of surfactant into Scattered Kettle, then add under high-speed stirred
Add 7 parts of suspending agent, disperse 10 minutes；
2. adding 3 parts of polystyrene resin beads, 3 parts of carbon fiber, 10 parts of binding agent to Scattered Kettle, disperse 10 minutes；
3. casting waste and old resin sand 100,60 parts of M70 mullites, 20 parts of crystalline flake graphite to Scattered Kettle addition, disperse 20 points
Clock；
4. adding 2 parts of aluminium powder, 3 parts of potassium permanganate, 5 parts of cryolite to Scattered Kettle, disperse 10 minutes, disperse after terminating,
Discharging packaging.
In summary, lost foam paint of the invention casts waste and old resin sand as Main Refractory, success because using
Solve the requirement of lost foam paint high temperature venting performance and heat compensation performance, and be effectively utilized foundry waste,
Cost is cheap, meets " Green foundry " and the sustainable theory of circulation, and solves the waste and old resin sand lost foam paint of casting
Carbon defects, shrink defects problem, have a good application prospect and promotional value.
Above to it is provided by the present invention it is a kind of by cast highly-breathable lost foam paint prepared by waste and old resin sand and its
Preparation method is described in detail, and embodiment used herein is set forth to the principle and embodiment of the application,
The explanation of above example is only intended to help and understands the present processes and its core concept；Meanwhile for the one of this area
As technical staff, according to the thought of the application, there will be changes in specific embodiments and applications, to sum up institute
State, this specification content should not be construed as the limitation to the application.
Claims (8)
1. a kind of highly-breathable lost foam paint prepared by casting waste and old resin sand, it is characterised in that including following components：Casting
It is fine to make waste and old resin sand, sial system refractory aggregate, crystalline flake graphite, polystyrene resin beads, aluminium powder, oxidant, fluoride, carbon
Dimension, suspending agent, binding agent, surfactant, defoamer, water；Wherein, the ratio of each component is：Cast waste and old resin sand 100
Part, sial system refractory aggregate 60-100 parts, crystalline flake graphite 5-25 parts, polystyrene resin beads 2-6 parts, aluminium powder 1-3 parts, oxidation
Agent 2-10 parts, fluoride 1-5 parts, carbon fiber 1-5 parts, suspending agent 3-10 parts, binding agent 5-15 parts, surfactant 0.2-0.5
Part, defoamer 0.5-1.5 parts, water 80-120 parts；Wherein, the waste and old resin sand of casting is the machinery regeneration without high-temperature roasting
Resin sand, particle mesh number are the mesh of 100 mesh -200.
2. highly-breathable lost foam paint according to claim 1, sial system refractory aggregate is alumine, M70
One or more of in mullite, Brown Alundum, alundum (Al2O3) content is more than 60% in sial system refractory aggregate, particle mesh number
For the mesh of 100 mesh -200.
3. highly-breathable lost foam paint according to claim 1, cast waste and old resin sand, sial system refractory aggregate, squama
Piece graphite common combination, the fire resistant infilling system as coating.
4. highly-breathable lost foam paint according to claim 1, the polystyrene resin beads a diameter of 40-
150μm。
5. highly-breathable lost foam paint according to claim 1, the oxidant is di-iron trioxide, four oxidations three
One or more of in iron, manganese dioxide, potassium nitrate, potassium permanganate, the fluoride is sodium fluoride, calcirm-fluoride, cryolite
In it is one or more of.
6. highly-breathable lost foam paint according to claim 1, the polystyrene resin beads can use polyformaldehyde
Resin particle or polyethylene-acrylate resin particle replace.
7. highly-breathable lost foam paint according to claim 1, the phosphorus content of the carbon fiber is more than 95%, length
Between 50-200 μm.
8. a kind of waste and old resin sand of casting using as described in claim any one of 1-7 prepares highly-breathable lost foam paint
Method, it is characterised in that comprise the following steps：
1) water, defoamer, surfactant are added into Scattered Kettle, then adds suspending agent under high-speed stirred, is disperseed 10 minutes；
2) polystyrene resin beads, carbon fiber, binding agent are added to Scattered Kettle, disperseed 10 minutes；
3) waste and old resin sand, sial system refractory aggregate, crystalline flake graphite are cast to Scattered Kettle addition, disperseed 20 minutes；
4) aluminium powder, oxidant, fluoride are added to Scattered Kettle, disperseed 10 minutes；
5) disperse after terminating, discharging packaging.
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| CN201510704085.6A CN105268911B (en) | 2015-10-27 | 2015-10-27 | A kind of highly-breathable lost foam paint and preparation method thereof |
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| CN105834355A (en) * | 2016-06-12 | 2016-08-10 | 安徽工程大学 | Self-heating high-temperature coating |
| CN106583633B (en) * | 2017-02-06 | 2018-11-30 | 宁夏共享化工有限公司 | A kind of foundry facing and preparation method thereof |
| CN107214293B (en) * | 2017-04-26 | 2019-01-08 | 共享智能装备有限公司 | A method of cast paint is prepared with discarded haydite resin sand |
| CN107096868B (en) * | 2017-05-03 | 2019-03-26 | 西安工程大学 | A kind of high fire resistance precoated sand of highly-breathable and preparation method thereof |
| CN107096874B (en) * | 2017-05-03 | 2019-06-21 | 西安工程大学 | A kind of highly-breathable alcohol radical lost foam paint and preparation method thereof |
| CN110625063B (en) * | 2019-10-11 | 2020-10-27 | 柳州市顺昇机械有限公司 | V-method casting process for producing engineering machinery counterweight block |
| CN110625061B (en) * | 2019-10-11 | 2020-10-02 | 柳州市顺昇机械有限公司 | Multifunctional coating for casting and preparation method thereof |
| CN111715844B (en) * | 2020-07-02 | 2021-11-09 | 宁夏共享化工有限公司 | Ceramic coating for casting process of evaporative pattern with hollow shell formed by sintering before pouring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS62292235A (en) * | 1986-06-12 | 1987-12-18 | Hagiwara Kazuyoshi | Water-base mold coating material and its production |
| JP5054308B2 (en) * | 2006-01-12 | 2012-10-24 | アイシン精機株式会社 | Casting method and water-soluble mold release agent for casting mold |
| CN101195146A (en) * | 2007-12-19 | 2008-06-11 | 济南圣泉集团股份有限公司 | Coal ash casting paint |
| CN102240776A (en) * | 2011-07-15 | 2011-11-16 | 浙江宸宇重工有限公司 | Coating for lost mould cast steel and manufacture method thereof |
| CN102423792A (en) * | 2011-11-28 | 2012-04-25 | 芜湖火龙铸造有限公司 | Casting coating prepared from casting resin sand regeneration dust |
| CN103084540B (en) * | 2013-01-30 | 2015-12-23 | 巢湖诺信建材机械装备有限公司 | A kind of lost foam paint compound method for casting heat-resistant steel or wear-resisting alloy steel |
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