CN105108054A - Transition layer coating for manufacturing shell of precision casting and preparation method of transition layer coating - Google Patents
Transition layer coating for manufacturing shell of precision casting and preparation method of transition layer coating Download PDFInfo
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- CN105108054A CN105108054A CN201510628729.8A CN201510628729A CN105108054A CN 105108054 A CN105108054 A CN 105108054A CN 201510628729 A CN201510628729 A CN 201510628729A CN 105108054 A CN105108054 A CN 105108054A
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Abstract
The invention relates to a transition layer coating for manufacturing a shell of a precision casting and a preparation method of the transition layer coating. The transition layer coating for manufacturing the shell of the precision casting consists of the following raw materials in part by weight: 10 parts of silica sol, 16-20 parts of zircon powder, 0.015-0.02 part of defoamer and 0.04-0.045 part of wetting agents. The flow cup viscosity value of the transition layer coating is 7-9s. The quality of the prepared shell is stable, the surface of the shell is compact, high-temperature strength is high, the dimensional accuracy of the casting is high, and surface quality of a product is good. Shelling property and fire resistance are good, and the shell is good in thermal conductivity, low in thermal expansion and excellent in thermal vibration stability. Moreover, the adding amount of the wetting agents and the adding amount of the defoamer are improved, and a transition layer has good breathability.
Description
Technical field
The invention belongs to precision casting technology field, be specifically related to a kind of precision casting shell transition zone coating and preparation method thereof.
Background technology
The product that precision-investment casting obtains is accurate, complicated, and close to part final form, can not to process or seldom processing just directly uses, be a kind of advanced technologies of near-net shaping, and be an excellent technology in casting industry, its application widely.It is not only applicable to the casting of all kinds, various alloy, and the casting dimension accuracy produced, surface quality are higher than Castingother method, even Castingother method be difficult to cast complexity, high temperature resistant, be not easy to the foundry goods processed, precision-investment casting all can be adopted to cast.
In precision casting process, shell affects one of the most key factor of casting quality, and it not only decides dimensional accuracy and the surface roughness of foundry goods, and directly affect manufacturing cost and the production efficiency of foundry goods.At present, the shell manufacture method that domestic precision castings extensively adopts in producing mainly contains following 3 kinds: sodium silicate shell, composite shell and silicasol case.Wherein, Ludox is applied to casting field as ceramic shell mo(u)ld binding agent, progressively instead of that once widely used preparation technology is numerous and diverse immediately, the waterglass that has pollution, cost high and ethyl silicate hydrolyzate with its unrivaled advantage.Facts have proved to have following advantages by silica sol liquid as ceramic shell mo(u)ld stick: preparing process is easy, coating is convenient to storage, can continue after the slip adjusting component of dip-coating to use, reduce material consumption, dipping process stable performance, easily operates, eliminate and do with ammonia during ethyl silicate hydrolyzate, working environment improves, and adopt the heated-air drying of controlled humidity, shell mould intensity is high, adopt water base Ludox, security is good.It is said, after using Ludox instead from silester, energy resource consumption reduces 20 ~ 30%, and shell mould qualification rate improves 15 ~ 20%, and working environment improves greatly.
In existing silicasol case preparation process, when the viscosity of transition zone slurry less (be coated with-4 and be less than 10s), the composite effect of defoamer or wetting agent and slurry is poor, desirable compatibility and surface smoothness cannot be obtained, and when defoamer or wetting agent addition excessive time, wax part surface is caused corrode to a certain extent again.
Summary of the invention
In order to overcome the problems referred to above, the invention provides a kind of precision casting shell transition zone coating and preparation method thereof, preferred by wetting agent and defoamer and slurry additional proportion, while the surface smoothness improving the compatibility on transition zone slurry and wax part surface, product shell membrane, avoid defoamer or wetting agent corrodes wax part; Meanwhile, be also surprised to find the linear contraction stability of product shell membrane and puncture resistance in research and have also been obtained lifting to a certain degree.
For achieving the above object, the present invention adopts following technique:
A kind of precision casting shell transition zone coating, is made up of the raw material of following weight part ratio: Ludox 10 parts, zirconium English powder 16-20 part, defoamer 0.015-0.02 part, wetting agent 0.04-0.045 part, now, the viscosity number of product is generally 7-9s.(viscosity described in the present invention is all and is coated with-4 viscosity)
Preferably, described defoamer is organic siliconresin defoamer (called after GPE30 defoamer), and wherein, the mass percent of organic siliconresin is less than 10%.Described wetting agent is formed (called after A-35 type wetting agent) by phosphoric acid, different monooctyl ester and oxireme mixed with polymers, and wherein, each component addition is the conventional amount used of this area.
The quality of investment shell adopting above-mentioned transition zone coating to prepare is stablized, surface compact, and casting dimension accuracy is high, and surface quality is good, has excellent elevated temperature strength, shelling property and fire resistance; Meanwhile, the shell stability advantages of higher that also has that thermal conductivity is good, thermal expansivity is little, heat is shaken.
In actual production, because the viscosity of transition zone slurry of the present invention is larger, when adopting conventional antifoam or wetting agent adding proportion, defoaming effect is poor, easily there is folder beans (as shown in Figure 1) in product surface, the wetability of slurry promotes little simultaneously, cannot effectively reduce pulp surface energy, slurry be coated with weak effect, there is burr in product surface.In order to overcome the problems referred to above, the present invention comprehensively analyzes the fusion mechanism of Ludox and zirconium English powder surface property, concentration and adhesive force interactively and the two and organic solvent, grope through the experiment of thousands of times and verify again, when discovery adopts the weight ratio of wetting agent and defoamer to be 8-9:3-4, effectively can improve the compatibility on transition zone slurry and wax part surface, improve the surface smoothness of product shell membrane, avoid defoamer or wetting agent to corrode wax part simultaneously.
Also find in an experiment, for transition zone slurry of the present invention, when the ratio of defoamer and wetting agent changes time, particularly when wetting agent ratio increases time, greatly can improve slurry with the compatibility of wax part, when defoamer and the additional proportion of wetting agent be 1:1 time, the burr on product shell membrane surface is grown thickly, as shown in Figure 1; When the weight part ratio of the two is 1:2, burr phenomena makes moderate progress, but compatibility, surface smoothness and flatness are still difficult to reach requirement, as shown in Figure 2; By contrast experiment repeatedly, finally find that the product shell mould of acquisition not only has preferably compatibility, fineness and flatness when the weight part ratio of defoamer and wetting agent is 3:8, and linear contraction stability and puncture resistance significantly strengthen; Continue adding than when being greater than 4:9 to the two mass ratio of increase wetting agent, corroding in various degree appears in wax part surface, for overcoming the problems referred to above, in the application, the mass ratio of defoamer and wetting agent is limited to 3:8-4:9.
Preferably, above-mentioned transition zone coating is made up of the raw material of following weight part ratio: Ludox 10 parts, zirconium English powder 18-20 part, GPE30 defoamer 0.015 part, A-35 type wetting agent 0.04 part.
Our proportioning is Ludox 10 parts at present, zirconium English powder 16-20 part, wetting agent 0.04 part, defoamer 0.015 part, this proportioning compared with traditional slurry, do not need binding agent, make operation more convenient, and there will not be the separation case of transition zone and backing layer, make its compatibility stronger, and we consider the granularity of backing layer sand and the thickness of shell mould, effectively combine to allow it, improve shell mould intensity and permeability, comprehensive many experiments result is (higher by Zirconium English powder viscosity, associativity is poorer, if but it is too low, also poorer with the compatibility of backing layer) we draw this proportioning, the advantage of this proportioning is to make the fissility of transition zone and backing layer improve, simultaneously the robustness of shell mould and gas permeability improve, drying time is short simultaneously, production efficiency is high, the attached associativity of parent improves, and substantially increase surface quality, particularly for low Co base, Ni base alloy has good effect, the various parameter requests of this kind of alloy to shell mould are very high, this technique makes the coefficient of expansion of its shell mould improve, gas permeability improves, reduce pore, the formation of pin hole, and ensure that the intensity of shell mould, firm transition zone surface quality.This is also the advantage place of this invention.
With regard to transition zone coating of the present invention, in GPE30 defoamer, content of organics is higher, apt to deteriorate, particularly in summer high-temperature situation, not easily preserves, and therefore its mass concentration is diluted to 0.12-0.15%.In multiple preferred version of the present invention, when A-35 type wetting agent mass concentration is greater than 0.4%, slurry fluidity declines, and produces undue thickness phenomenon.When A-35 type wetting agent mass concentration is less than 0.36%, surface property and the permeability of slurry are bad, adhesive force declines.Confirm following result: make A-35 type wetting agent mass concentration respectively more than 0.36% and the scope of less than 0.4% time, good surface property, permeability and adhesive force can be obtained.
Preferably, ZrO in described zirconium English powder
2(HfO
2) mass fraction be greater than 65%, Fe
2o
3mass fraction be less than 0.1%, TiO
2mass fraction be less than 0.14%.
Present invention also offers a kind of preparation method of precision casting shell transition zone coating, in Ludox, add A-35 type wetting agent, zirconium English powder, GPE30 defoamer successively, and mix, adjustment viscosity is 7-9s, after continuing the time being stirred to technological requirement, to obtain final product.
Described A-35 type wetting agent and GPE30 defoamer all purchased from Weifang Hua Zhong advanced composite material (ACM) Co., Ltd, No. 8, Venture Road, Nan Haozhen industry park, Changyue County of address Shandong Province.Item Number: AIB040A35, AIB06F79P.
Preferably, the concrete steps of described adjustment viscosity are: the viscosity of preliminary survey coating, if viscosity number is greater than 7-9s, then add Ludox adjustment; If viscosity number is lower than 7-9s, then add refractory powder adjustment.
Preferably, when described transition zone coating is all virgin material, mixing time >=24h, mixing time >=12h when transition zone coating portion is virgin material.
Above-mentioned transition zone coating can be used for Hardware fitting, golf boats and ships, architectural hardware, mechanical fitting, aircraft manufacturing, weaponry, valve, the pump housing, or aircraft, train, naval vessel the manufacture of the precision casting such as impeller, blade, hollow blade.
Low Ni under the melting in air that Ni base and Co base alloy mainly refer to and low-Co alloy (general content is below 50%), the molten steel of these alloys to the intensity on shell mould surface and expansion coefficient requirements higher, and existing transition zone coating cannot meet above-mentioned technological requirement, this is also that the present invention is to one of reason that transition zone improves, by above-mentioned research, transition zone coating of the present invention better enhances compatibility and the stability on the surface of shell mould, the any surface finish of alloy, dimensionally stable.
Therefore, present invention also offers a kind of Ni base alloy precision foundry goods shell transition zone coating, be made up of the raw material of following weight part ratio: Ludox 10 parts, zirconium English powder 16-20 part, defoamer 0.015-0.02 part, wetting agent 0.04-0.045 part, being coated with 4-viscosity is 48-57s.
Preferably, described defoamer is GPE30 defoamer, and described wetting agent is A-35 type wetting agent.
A kind of Co base alloy precision foundry goods shell transition zone coating, be made up of the raw material of following weight part ratio: Ludox 10 parts, zirconium English powder 16-20 part, defoamer 0.015-0.02 part, wetting agent 0.04-0.045 part, being coated with 4-viscosity is 48-57s.
Described defoamer is GPE30 defoamer, and described wetting agent is A-35 type wetting agent.
Beneficial effect of the present invention:
1., while transition zone coating of the present invention improves the surface smoothness of the compatibility on transition zone slurry and wax part surface, product shell membrane, avoid defoamer or wetting agent corrodes wax part; The linear contraction stability of product shell membrane and puncture resistance have also been obtained effective lifting.
2. the quality of investment shell adopting transition zone coating of the present invention to prepare is stablized, surface compact, and casting dimension accuracy is high, and surface quality is good, has excellent elevated temperature strength, shelling property and fire resistance; Meanwhile, the shell stability advantages of higher that also has that thermal conductivity is good, thermal expansivity is little, heat is shaken.
3., when transition zone coating of the present invention is used for Ni base and Co base alloy, better enhance compatibility and the stability on the surface of shell mould, any surface finish of alloy, dimensionally stable.
4. the quality of investment shell adopting above-mentioned transition zone coating to prepare is stablized, surface compact, and casting dimension accuracy is high, and surface quality is good, has excellent elevated temperature strength, shelling property and fire resistance; Meanwhile, the shell stability advantages of higher that also has that thermal conductivity is good, thermal expansivity is little, heat is shaken.
Accompanying drawing explanation
Easily there is folder beans figure in Fig. 1 product surface.
The aspect graph of product surface when the additional proportion of Fig. 2 GPE30 defoamer and A-35 type wetting agent is 1:2.
Fig. 3 defoamer reaction principle figure.
Concrete implementing measure
Below in conjunction with accompanying drawing, the present invention will be further elaborated.Should be noted that following explanation is only to explain the present invention, its content not being limited.
Embodiment 1
A kind of precision casting shell transition zone coating, is made up of the raw material of following weight part ratio: Ludox 10 parts, 18 parts, zirconium English powder, defoamer 0.015 part, wetting agent 0.04 part.
Preparation method is as follows:
At the shell membrane surface coating transition zone of coating surface layer, concrete steps are as follows:
Room temperature 22-27 DEG C, when temperature is more than 27 DEG C time, will cause shell mould to occur crackle, the bad phenomenon such as dry transition, will there will be iron wing, overlap, the shell that rises etc. bad in foundry goods.
Mixing time >=24h when transition zone coating is all virgin material, part virgin material mixing time >=12h;
Mixing time >=10h when transition zone coating and backing layer coating are all virgin material, part virgin material mixing time >=5h;
Virgin material less than 50%: mixing time 4-5h;
Virgin material more than 50%: mixing time 6-12h;
Virgin material more than 75%: mixing time 12-17h;
Virgin material 100%: mixing time 18-24h;
In proportion Ludox is poured in paint can (being stained with pulp grinder bucket).
Start and be stained with pulp grinder, make it rotate.
Add wetting agent with the ratio of per kilogram Ludox, be mixed even.
In proportion refractory powder slowly being added in paint can, note preventing refractory powder from luming, by stirring, powder being stirred out.
Add defoamer with the ratio of per kilogram Ludox, be mixed even.
Coating be substantially mixed even after, with Zhan Shi cup preliminary survey dope viscosity.As viscosity is too high, add Ludox adjustment; As viscosity is too low, add refractory powder adjustment, the viscosity of the comparable requirement of first viscosimetric is slightly high, will slightly decline because coating stirs rear viscosity.
After dope viscosity is adjusted, after continuing the time being stirred to technological requirement, reexamine dope viscosity, reach technological requirement and can use (viscosity is 7-9s).
Coating should be prepared before leaving offices in proportion in shell workshop processed, is coated with slurry level and should reaches working stamndard requirement, and measure dope viscosity, and adjustment proportion scale, until viscosity is qualified.After Hours paint can must continue to stir.
In actual production, the height of liquid level is limited, within the 15cm of slurry bucket top edge, when liquid level is lower than this height, virgin material will be carried out and supplement, to ensure the liquid level of slurry.
In operation, the minimum altitude that we will control liquid level will reach cup bonding place, otherwise liquid level is too low, and shell mould will be shapeless, imperfect, and cup also obscission can occur.
When in use procedure, dope viscosity increases, available Ludox is adjusted.
Strictly charging sequence be to press during transition zone coating, Ludox, wetting agent, zirconium English powder, defoamer added successively,
Charging sequence should be correct.
Module slowly immersed transition zone with the angle about 45-60 degree to be coated with in slip and slightly to rotate, notice that the air that wax-pattern groove and sharp corner are wrapped in coating minimizes, with hairbrush brushing or spray paint in advance when having typefounding or a thin narrow groove; Take out module with slightly fast speed, unnecessary painting gob is removed, blow bale broken with compressed air and be attached to bubble in wax-pattern hole and wedge angle, ceaselessly rotate module, module is formed complete uniform coating; Stretched into by the module being covered with uniform coating to drench in sand machine and overturn, allow all surfaces uniform fold last layer sand, after waiting for natural drying, the transition zone of shell is namely to be formed, and follow-uply can make back-up coat by the preparation method identical with transition zone shell.The preparation method of described surface layer is also identical with transition zone, the materials of surface layer and back-up coat, follow-up to bake, casting process can carry out routine according to the state of the art and select.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 2
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 20 parts, zirconium English powder, defoamer 0.015 part, wetting agent 0.04 part.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 3
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 16 parts, zirconium English powder, defoamer 0.015 part, wetting agent 0.04 part.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 4
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 18 parts, zirconium English powder, defoamer 0.015 part, wetting agent 0.04 part.The mass concentration of GPE30 defoamer is 0.12%, and the mass concentration of wetting agent is 0.36%.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 5
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 20 parts, zirconium English powder, GPE30 defoamer 0.015 part, A-35 type wetting agent 0.04 part.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, surface smoothness comparatively dimethicone defoamer or n-octyl alcohol defoamer promotes 1-2 grade, the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 6
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 16 parts, zirconium English powder, GPE30 defoamer 0.015 part, A-35 type wetting agent 0.04 part.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, surface smoothness comparatively dodecyl sodium sulfate or AEO wetting agent promotes 1-2 grade, the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
Embodiment 7
A kind of precision casting shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 18 parts, zirconium English powder, GPE30 defoamer 0.015 part, A-35 type wetting agent 0.04 part.The mass concentration of GPE30 defoamer is 0.12%, and the mass concentration of wetting agent is 0.36%.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.
The arbitrary described scheme of embodiment 1-7 prepares Hardware fitting, golf boats and ships, architectural hardware mechanical fitting, aircraft manufacturing weaponry, valve, the pump housing that transition zone manufactures, or aircraft, train, naval vessel the product quality of the precision casting such as impeller, blade, hollow blade all reach the target level of product quality of hot investment casting.
Embodiment 8
A kind of Ni base alloy precision foundry goods shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 20 parts, zirconium English powder, defoamer 0.015 part, wetting agent 0.04 part.The mass concentration of defoamer is 0.132%, and the mass concentration of wetting agent is 0.38%.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.Properties of product are obviously better than general non-Co base alloy precision foundry goods.
Embodiment 9
A kind of Co base alloy precision foundry goods shell transition zone coating, is characterized in that, be made up of the raw material of following weight part ratio: Ludox 10 parts, 16 parts, zirconium English powder, GPE30 defoamer 0.015 part, A-35 type wetting agent 0.04 part.The mass concentration of GPE30 defoamer is 0.5%, and the mass concentration of wetting agent is 0.4%.
Preparation method is with embodiment 1.
The product of preparation can be avoided occurring shrinkage cavity or shrinkage defect, and surface smoothness is high, and the linear contraction stability of product shell membrane and puncture resistance excellence, product quality can reach the target level of product quality of hot investment casting.Properties of product are obviously better than general non-Ni base alloy precision foundry goods.
The precision casting that described in embodiment 1-9 prepared by transition zone coating can meet the corresponding Industry code requirements of various product, and described standard comprises: JB/T7946.1-1999; JB/T4153-1999; JB/T4007-1999; JB/T2980.2-1999; JB/T2980.1-1999; GB/T14235.9-1993; GB/T14235.8-1993; GB/T14235.7-1993; GB/T14235.6-1993; GB/T14235.5-1993; GB/T14235.4-1993; GB/T14235.3-1993; GB/T14235.2-1993; GB/T14235.1-1993; GB/T12215-1990; GB/T12214-1990.
Comparative example 1;
Be with the difference of embodiment 1, the weight part ratio of defoamer and wetting agent is 1:1.Product surface fineness is poor, occur shrinkage cavity or shrinkage defect, and product quality cannot reach the target level of product quality of hot investment casting.
Comparative example 2
Be with the difference of embodiment 1, the weight part ratio of defoamer and wetting agent is 3:4.Product surface fineness is poor, shrinkage cavity and porosity and burr, and product quality cannot reach the target level of product quality of hot investment casting.
Comparative example 3
Be with the difference of embodiment 1, the weight part ratio of defoamer and wetting agent is 1:2.Product surface fineness is poor, occur shrinkage cavity and porosity and burr, and product quality cannot reach the target level of product quality of hot investment casting.
Comparative example 4
Be with the difference of embodiment 1, the weight part ratio of defoamer and wetting agent is 4:10.Product surface fineness is poor, occur shrinkage cavity or shrinkage defect, and product quality cannot reach the target level of product quality of hot investment casting.
Comparative example 5
Be with the difference of embodiment 1, the mass concentration of A-35 type wetting agent is 0.42%.The undue thickness of slurry, seriously causes slurry to be scrapped.Product surface fineness is poor, and product quality cannot reach the target level of product quality of hot investment casting.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. a precision casting shell transition zone coating, is characterized in that, is made up of the raw material of following weight part ratio: Ludox 10 parts, zirconium English powder 16-20 part, defoamer 0.015-0.02 part, wetting agent 0.04-0.045 part, and being coated with 4-viscosity is 7-9s.
2. coating as claimed in claim 1, it is characterized in that, described defoamer is GPE30 defoamer, and described wetting agent is A-35 type wetting agent.
3. coating as claimed in claim 2, it is characterized in that, the mass concentration of described GPE30 defoamer is 0.12-0.15%, and the mass concentration of wetting agent is 0.36-0.4%.
4. coating as claimed in claim 1, is characterized in that, ZrO in described zirconium English powder
2(HfO
2) mass fraction be greater than 65%, Fe
2o
3mass fraction be less than 0.1%, TiO
2mass fraction be less than 0.14%.
5. the precision casting shell preparation method of transition zone coating described in any one of claim 1-4, is characterized in that, adds wetting agent, zirconium English powder, defoamer in Ludox successively, and mix, adjustment viscosity is 7-9s, after continuing the time being stirred to technological requirement, to obtain final product.
6. method as claimed in claim 5, it is characterized in that, the concrete steps of described adjustment viscosity are: the viscosity of preliminary survey coating, if viscosity number is greater than 7-9s, then add Ludox adjustment; If viscosity number is lower than 7-9s, then add refractory powder adjustment.
7. method as claimed in claim 5, is characterized in that, when described transition zone coating is all virgin material, and mixing time >=24h, mixing time >=12h when transition zone coating portion is virgin material.
8. the transition zone coating as described in as arbitrary in claim 1-4 is preparing Hardware fitting, golf boats and ships, architectural hardware, mechanical fitting, aircraft manufacturing, weaponry, valve, the pump housing, or aircraft, train, the impeller on naval vessel, blade, application in hollow blade.
9. the transition zone coating of the precision casting shell described in any one of claim 1-4 is manufacturing the application in Ni base alloy precision foundry goods.
10. the transition zone coating of the precision casting shell described in any one of claim 1-4 is manufacturing the application in Co base alloy precision foundry goods.
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| CN108746484A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108746485A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108838324A (en) * | 2018-08-21 | 2018-11-20 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN112296250A (en) * | 2020-10-12 | 2021-02-02 | 山东燕山精密机械有限公司 | Preparation process of shell-making slurry for precision casting shell |
| CN112453313A (en) * | 2020-11-13 | 2021-03-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Preparation method of shell material of high-temperature alloy case investment casting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04371348A (en) * | 1991-06-18 | 1992-12-24 | Mitsubishi Heavy Ind Ltd | Mold coating material for casting |
| JP2000051994A (en) * | 1998-08-17 | 2000-02-22 | Kao Corp | Coating agent composition for casting |
| CN101362184A (en) * | 2008-09-08 | 2009-02-11 | 莱芜市泰钢新材料有限责任公司 | Manufacture method of stainless steel, carbon steel precision casting surface shell |
| CN101480707A (en) * | 2008-01-09 | 2009-07-15 | 南车资阳机车有限公司 | Metal casting method |
| CN103600030A (en) * | 2013-08-30 | 2014-02-26 | 泰州枫叶冶金设备有限公司 | Preparation method of heat-resisting alloy sliding-block shell by investment casting |
| CN104190861A (en) * | 2014-09-15 | 2014-12-10 | 内蒙古第一机械集团有限公司 | Investment precoat for making shell in investment casting |
| CN104722703A (en) * | 2015-04-03 | 2015-06-24 | 莱芜市泰钢新材料有限责任公司 | Production method of precision casting surface layer sizing agent |
-
2015
- 2015-09-28 CN CN201510628729.8A patent/CN105108054B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04371348A (en) * | 1991-06-18 | 1992-12-24 | Mitsubishi Heavy Ind Ltd | Mold coating material for casting |
| JP2000051994A (en) * | 1998-08-17 | 2000-02-22 | Kao Corp | Coating agent composition for casting |
| JP3801788B2 (en) * | 1998-08-17 | 2006-07-26 | 花王株式会社 | Casting composition |
| CN101480707A (en) * | 2008-01-09 | 2009-07-15 | 南车资阳机车有限公司 | Metal casting method |
| CN101362184A (en) * | 2008-09-08 | 2009-02-11 | 莱芜市泰钢新材料有限责任公司 | Manufacture method of stainless steel, carbon steel precision casting surface shell |
| CN103600030A (en) * | 2013-08-30 | 2014-02-26 | 泰州枫叶冶金设备有限公司 | Preparation method of heat-resisting alloy sliding-block shell by investment casting |
| CN104190861A (en) * | 2014-09-15 | 2014-12-10 | 内蒙古第一机械集团有限公司 | Investment precoat for making shell in investment casting |
| CN104722703A (en) * | 2015-04-03 | 2015-06-24 | 莱芜市泰钢新材料有限责任公司 | Production method of precision casting surface layer sizing agent |
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