CN107321911A - Improve resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof - Google Patents
Improve resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof Download PDFInfo
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- CN107321911A CN107321911A CN201710531100.0A CN201710531100A CN107321911A CN 107321911 A CN107321911 A CN 107321911A CN 201710531100 A CN201710531100 A CN 201710531100A CN 107321911 A CN107321911 A CN 107321911A
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- parts
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof is improved, is related to model casting correlative technology field, the coating liquid used is divided into top layer coating liquid, middle level coating liquid and nexine coating liquid.The present invention by the wax pattern surface of model casting carry out respectively table, in, inner three-layer coating layer making; with reference to the heat-resisting ability of coat; effectively increase the case hardness and resistant to elevated temperatures temperature of cast member; cast member can be protected well injury-free, it is ensured that the useful life of cast member and use quality when receiving high temperature and high pressure situation.
Description
Technical field：
The present invention relates to model casting correlative technology field, and in particular to one kind improves the resistant to elevated temperatures wax-pattern coating of cast member
And preparation method thereof.
Background technology：
Model casting is also known as lost-wax casting, including presses wax, repair wax, group tree, be stained with slurry, dewaxing, casting metals liquid and post processing
Etc. process.Lost-wax casting is, with the waxed wax-pattern for making to be cast part, then mud to be coated with wax-pattern, here it is mud mould.Mud
After mould dries, Tao Mo is being fired into.One is fired, and all fusing is lost in wax-pattern, only surplus Tao Mo.It is left with during general mud mould processed
Sprue gate, then molten metal is poured into from sprue gate, after cooling, required part is just made.
Model casting uses the coating refractory material in the apperance being made up of fusible material to form shell, melts out mould
Sample, after injection liquid metal cooling, the method for obtaining casting.
During model casting in order to improve cast member various performances and in order to reach higher technological standards will
Ask, the coating of correlation function typically can be all coated in wax pattern surface the purpose for improving correlated performance is reached with this, this patent is carried
The technical scheme of confession is exactly a kind of raising resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of coating for the wax pattern surface being coated in model casting
Structure, and the structure method for production.
The technical problems to be solved by the invention are realized using following technical scheme：
Improve the resistant to elevated temperatures wax-pattern coating of cast member, the coating liquid used be divided into top layer coating liquid, middle level coating liquid and in
Layer coating liquid；
Wherein top layer coating liquid by：40-45 parts of quartz sand, anti-oxidant comminuted steel shot 10-12 parts, 5-8 parts of silica flour, tungsten carbide 7-9
5-10 parts of part, 8-10 parts of silicate, 3-5 parts of coupling agent, 6-7 parts of accelerator, 3-5 parts of diluent and releasing agent are prepared from；
Wherein middle level coating liquid by：45-50 parts of dolomite, anti-oxidant comminuted steel shot 8-10 parts, 5-8 parts of clay, tungsten carbide 7-9
5-10 parts of part, 8-10 parts of silicate, 3-5 parts of coupling agent, 6-7 parts of accelerator, 3-5 parts of diluent and releasing agent are prepared from；
Wherein nexine coating liquid by：50-58 parts of quartz sand, anti-oxidant comminuted steel shot 6-8 parts, 5-8 parts of glass dust, tungsten carbide 7-9
5-10 parts of part, 8-10 parts of silicate, 3-5 parts of coupling agent, 6-7 parts of accelerator, 3-5 parts of diluent and releasing agent are prepared from；
The preparation method of above-mentioned top layer coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80-85 DEG C, is stirred
Mix uniform rear enclosed reactor to be incubated, stop during insulation after heating, insulation 1-2h, open reactor and add tungsten carbide inward
And silica flour, it is sufficiently stirred for again, is taken out after stirring and carry out air-cooled, completion preparation；
The preparation method of above-mentioned middle level coating liquid is：Dolomite, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80-85 DEG C, is stirred
Mix uniform rear enclosed reactor to be incubated, stop during insulation after heating, insulation 1-2h, open reactor and add tungsten carbide inward
And clay, it is sufficiently stirred for again, is taken out after stirring and carry out air-cooled, completion preparation；
The preparation method of above-mentioned nexine coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80-85 DEG C, is stirred
Mix uniform rear enclosed reactor to be incubated, stop during insulation after heating, insulation 1-2h, open reactor and add tungsten carbide inward
And glass dust, it is sufficiently stirred for again, is taken out after stirring and carry out air-cooled, completion preparation；
Improve the resistant to elevated temperatures wax-pattern coating of cast member preparation method be：Using top layer coating liquid, middle level coating liquid and in
Layer coating liquid is coated to wax pattern surface successively, and nexine coating liquid first is coated uniformly on into wax pattern surface during coating, then adopted
It is 0.3-0.5m/s with speed, temperature is handled wax pattern surface for 30-40 DEG C of hot blast, and processing carries out middle level painting after 3-5 minutes
The coating of covering liquid, the painting method of middle level coating liquid is identical with the painting method of nexine coating liquid, and top layer coating is then carried out again
Wax-pattern is placed on standing in the environment of temperature is set as 80-90 DEG C after terminating and taken out after 20-30 minutes by the coating of liquid, coating,
Natural cooling after taking-up, so far improves the resistant to elevated temperatures wax-pattern coating of cast member and completes；
The above-mentioned resistant to elevated temperatures wax-pattern coating of raising cast member by table, in, inner three layers wax-pattern is carried out respectively it is different degrees of
Resistance to elevated temperatures lifting, then after wax-pattern dissolves improve the resistant to elevated temperatures wax-pattern coating of cast member can be transferred to outside wax-pattern
Mud mould inwall on, then merged again by the moulding by casting of molten metal with molten metal, when molten metal is cooled into cast member
Protective layer can be formed to improve the resistance to elevated temperatures of cast member on cast member surface by improving the resistant to elevated temperatures wax-pattern coating of cast member；
In order to more accurately represent the resistant to elevated temperatures ability that this technology is brought, wax-pattern is carried out using the above method
The coating of coating, the cast member then made using the wax-pattern carries out the dependence test of high temperature resistant energy, and record data to it：In detail
It is shown in Table 1
Table 1：
| Thermal conductivity factor | High temperature resistant temperature | Case hardness |
| 0.06-0.08w/m*k | 1500-1600 | 20-30HRC |
Drawn by upper table data analysis：The cast member that the method provided using this patent is made thermal conductivity factor,
All there is fabulous performance capabilities to be all greatly improved in terms of high temperature resistant temperature and case hardness；
The beneficial effects of the invention are as follows：By the wax pattern surface of model casting carry out respectively table, in, inner three-layer coating layer
Making, with reference to the heat-resisting ability of coat, effectively increase the case hardness and resistant to elevated temperatures temperature of cast member, receiving
Cast member can be protected well injury-free, it is ensured that the useful life of cast member and use product during high temperature and high pressure situation
Matter.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Specific example is closed, the present invention is expanded on further.
Embodiment 1：
Improve the resistant to elevated temperatures wax-pattern coating of cast member, the coating liquid used be divided into top layer coating liquid, middle level coating liquid and in
Layer coating liquid；
Wherein top layer coating liquid by：40 parts of quartz sand, 10 parts of anti-oxidant comminuted steel shot, 5 parts of silica flour, 7 parts of tungsten carbide and silicate 8
5 parts of part, 3 parts of coupling agent, 6 parts of accelerator, 3 parts of diluent and releasing agent are prepared from；
Wherein middle level coating liquid by：45 parts of dolomite, 8 parts of anti-oxidant comminuted steel shot, 5 parts of clay, 7 parts of tungsten carbide and silicate 8
5 parts of part, 3 parts of coupling agent, 6 parts of accelerator, 3 parts of diluent and releasing agent are prepared from；
Wherein nexine coating liquid by：50 parts of quartz sand, 6 parts of anti-oxidant comminuted steel shot, 5 parts of glass dust, 7 parts of tungsten carbide and silicate
5 parts of 8 parts, 3 parts of coupling agent, 6 parts of accelerator, 3 parts of diluent and releasing agent are prepared from；
The preparation method of above-mentioned top layer coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 2h, is opened reactor and add tungsten carbide and silicon inward
Powder, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
The preparation method of above-mentioned middle level coating liquid is：Dolomite, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 2h, is opened reactor and is added tungsten carbide inward and viscous
Soil, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
The preparation method of above-mentioned nexine coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 80 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 1h, is opened reactor and add tungsten carbide and glass inward
Powder, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
Improve the resistant to elevated temperatures wax-pattern coating of cast member preparation method be：Using top layer coating liquid, middle level coating liquid and in
Layer coating liquid is coated to wax pattern surface successively, and nexine coating liquid first is coated uniformly on into wax pattern surface during coating, then adopted
It is 0.3m/s with speed, temperature is handled wax pattern surface for 40 DEG C of hot blast, and processing carries out the painting of middle level coating liquid after 3 minutes
Cover, the painting method of middle level coating liquid is identical with the painting method of nexine coating liquid, and the coating of top layer coating liquid is then carried out again,
Wax-pattern is placed on standing in the environment of temperature is set as 80 DEG C after terminating and taken out after 30 minutes by coating, natural cooling after taking-up,
So far the resistant to elevated temperatures wax-pattern coating of cast member is improved to complete；
Embodiment 2：
Improve the resistant to elevated temperatures wax-pattern coating of cast member, the coating liquid used be divided into top layer coating liquid, middle level coating liquid and in
Layer coating liquid；
Wherein top layer coating liquid by：45 parts of quartz sand, 12 parts of anti-oxidant comminuted steel shot, 8 parts of silica flour, 9 parts of tungsten carbide and silicate
10 parts of 10 parts, 5 parts of coupling agent, 7 parts of accelerator, 5 parts of diluent and releasing agent are prepared from；
Wherein middle level coating liquid by：50 parts of dolomite, 10 parts of anti-oxidant comminuted steel shot, 8 parts of clay, 9 parts of tungsten carbide and silicate
10 parts of 10 parts, 5 parts of coupling agent, 7 parts of accelerator, 5 parts of diluent and releasing agent are prepared from；
Wherein nexine coating liquid by：58 parts of quartz sand, 8 parts of anti-oxidant comminuted steel shot, 8 parts of glass dust, 9 parts of tungsten carbide and silicate
10 parts of 10 parts, 5 parts of coupling agent, 7 parts of accelerator, 5 parts of diluent and releasing agent are prepared from；
The preparation method of above-mentioned top layer coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 85 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 1h, is opened reactor and add tungsten carbide and silicon inward
Powder, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
The preparation method of above-mentioned middle level coating liquid is：Dolomite, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 85 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 1h, is opened reactor and is added tungsten carbide inward and viscous
Soil, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
The preparation method of above-mentioned nexine coating liquid is：Quartz sand, anti-oxidant comminuted steel shot are added in reactor first and carried out
Heating stirring, silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added when temperature rises to 85 DEG C, and stirring is equal
Even rear enclosed reactor is incubated, and is stopped during insulation after heating, insulation 1h, is opened reactor and add tungsten carbide and glass inward
Powder, is sufficiently stirred for again, is taken out after stirring and is carried out air-cooled, completion preparation；
Improve the resistant to elevated temperatures wax-pattern coating of cast member preparation method be：Using top layer coating liquid, middle level coating liquid and in
Layer coating liquid is coated to wax pattern surface successively, and nexine coating liquid first is coated uniformly on into wax pattern surface during coating, then adopted
It is 0.5m/s with speed, temperature is handled wax pattern surface for 30 DEG C of hot blast, and processing carries out the painting of middle level coating liquid after 5 minutes
Cover, the painting method of middle level coating liquid is identical with the painting method of nexine coating liquid, and the coating of top layer coating liquid is then carried out again,
Wax-pattern is placed on standing in the environment of temperature is set as 90 DEG C after terminating and taken out after 20 minutes by coating, natural cooling after taking-up,
So far the resistant to elevated temperatures wax-pattern coating of cast member is improved to complete；
The coating of coating is carried out to wax-pattern using embodiment 1 and embodiment 2 respectively, then respectively to using the He of embodiment 1
The cast member that the wax-pattern that embodiment 2 makes makes carries out the dependence test of high temperature resistant energy, and record data：Refer to table 2
Table 2：
| Classification | Thermal conductivity factor | High temperature resistant temperature | Case hardness |
| Embodiment 1 | 0.06w/m*k | 1550 | 25HRC |
| Embodiment 2 | 0.07w/m*k | 1580 | 30HRC |
Drawn by upper table data analysis：The cast member that the method provided using this patent is made thermal conductivity factor,
All there is fabulous performance capabilities to be all greatly improved in terms of high temperature resistant temperature and case hardness, by model casting
Wax pattern surface carry out respectively table, in, inner three-layer coating layer making, with reference to the heat-resisting ability of coat, effectively increase
The case hardness of cast member and resistant to elevated temperatures temperature, cast member can be protected well not when receiving high temperature and high pressure situation
It is damaged, it is ensured that the useful life of cast member and use quality.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. improve the resistant to elevated temperatures wax-pattern coating of cast member, it is characterised in that：The coating liquid used is divided into top layer coating liquid, middle level and applied
Covering liquid and nexine coating liquid；Wherein top layer coating liquid by：40-45 parts of quartz sand, anti-oxidant comminuted steel shot 10-12 parts, 5-8 parts of silica flour,
7-9 parts of tungsten carbide and 8-10 parts of silicate, 3-5 parts of coupling agent, 6-7 parts of accelerator, 5-10 parts of systems of 3-5 parts of diluent and releasing agent
It is standby to form；Wherein middle level coating liquid by：45-50 parts of dolomite, anti-oxidant comminuted steel shot 8-10 parts, 5-8 parts of clay, 7-9 parts of tungsten carbide
It is prepared from 5-10 parts of 8-10 parts of silicate, 3-5 parts of coupling agent, 6-7 parts of accelerator, 3-5 parts of diluent and releasing agent；Wherein
Nexine coating liquid by：50-58 parts of quartz sand, anti-oxidant comminuted steel shot 6-8 parts, 5-8 parts of glass dust, 7-9 parts of tungsten carbide and silicate 8-
5-10 parts of 10 parts, 3-5 parts of coupling agent, 6-7 parts of accelerator, 3-5 parts of diluent and releasing agent are prepared from.
2. the raising resistant to elevated temperatures wax-pattern coating of cast member according to claim 1, it is characterised in that：The top layer coating liquid
Preparation method be：Quartz sand, anti-oxidant comminuted steel shot are added to progress heating stirring in reactor first, when temperature rises to 80-
Silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added at 85 DEG C, the rear enclosed reactor that stirs is carried out
Insulation, stops after heating, insulation 1-2h during insulation, opens reactor and add tungsten carbide and silica flour inward, fully stirred again
Mix, taken out after stirring and carry out air-cooled, completion preparation.
3. the raising resistant to elevated temperatures wax-pattern coating of cast member according to claim 1, it is characterised in that：The middle level coating liquid
Preparation method be：Dolomite, anti-oxidant comminuted steel shot are added to progress heating stirring in reactor first, when temperature rises to 80-
Silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added at 85 DEG C, the rear enclosed reactor that stirs is carried out
Insulation, stops after heating, insulation 1-2h during insulation, opens reactor and add tungsten carbide and clay inward, fully stirred again
Mix, taken out after stirring and carry out air-cooled, completion preparation.
4. the raising resistant to elevated temperatures wax-pattern coating of cast member according to claim 1, it is characterised in that：The nexine coating liquid
Preparation method be：Quartz sand, anti-oxidant comminuted steel shot are added to progress heating stirring in reactor first, when temperature rises to 80-
Silicate, coupling agent, accelerator, diluent and releasing agent are sequentially added at 85 DEG C, the rear enclosed reactor that stirs is carried out
Insulation, stops after heating, insulation 1-2h during insulation, opens reactor and add tungsten carbide and glass dust inward, carry out again abundant
Stirring, takes out after stirring and carries out air-cooled, completion preparation.
5. improve the preparation method of the resistant to elevated temperatures wax-pattern coating of cast member, it is characterised in that：Coated using top layer coating liquid, middle level
Liquid and nexine coating liquid are coated to wax pattern surface successively, and nexine coating liquid first is coated uniformly on into wax pattern surface during coating,
Then speed is used for 0.3-0.5m/s, temperature is handled wax pattern surface for 30-40 DEG C of hot blast, processing is carried out after 3-5 minutes
The coating of middle level coating liquid, the painting method of middle level coating liquid is identical with the painting method of nexine coating liquid, and table is then carried out again
Layer coating liquid coating, coating terminate after by wax-pattern be placed in the environment of temperature is set as 80-90 DEG C stand 20-30 minutes after
Take out, natural cooling after taking-up, so far improve the resistant to elevated temperatures wax-pattern coating of cast member and complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531100.0A CN107321911A (en) | 2017-07-03 | 2017-07-03 | Improve resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710531100.0A CN107321911A (en) | 2017-07-03 | 2017-07-03 | Improve resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN107321911A true CN107321911A (en) | 2017-11-07 |
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|---|---|---|---|
| CN201710531100.0A Pending CN107321911A (en) | 2017-07-03 | 2017-07-03 | Improve resistant to elevated temperatures wax-pattern coating of cast member and preparation method thereof |
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Citations (6)
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|---|---|---|---|---|
| GB2309037B (en) * | 1995-12-27 | 1997-12-24 | Mando Machine Co Ltd | Method of coating a mould cavity with release agents |
| CN101406934A (en) * | 2008-11-13 | 2009-04-15 | 莱芜市泰钢新材料有限责任公司 | Shell-making method of investment casting of flow guiding body |
| CN101992263A (en) * | 2010-11-08 | 2011-03-30 | 上海市机械制造工艺研究所有限公司 | Process for large high-alloy steel resin bonded sand mould composite coating |
| CN102000762A (en) * | 2010-11-08 | 2011-04-06 | 上海市机械制造工艺研究所有限公司 | Combined coating layer process for large-scale steel casting water glass sand molds |
| CN103861997A (en) * | 2012-12-13 | 2014-06-18 | 江苏万恒铸业有限公司 | Process for manufacturing nickel-base alloy precision cast mold shell |
| CN105414485A (en) * | 2015-11-30 | 2016-03-23 | 湖州南丰机械制造有限公司 | Method for preparing casting shell of fired mold |
-
2017
- 2017-07-03 CN CN201710531100.0A patent/CN107321911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2309037B (en) * | 1995-12-27 | 1997-12-24 | Mando Machine Co Ltd | Method of coating a mould cavity with release agents |
| CN101406934A (en) * | 2008-11-13 | 2009-04-15 | 莱芜市泰钢新材料有限责任公司 | Shell-making method of investment casting of flow guiding body |
| CN101992263A (en) * | 2010-11-08 | 2011-03-30 | 上海市机械制造工艺研究所有限公司 | Process for large high-alloy steel resin bonded sand mould composite coating |
| CN102000762A (en) * | 2010-11-08 | 2011-04-06 | 上海市机械制造工艺研究所有限公司 | Combined coating layer process for large-scale steel casting water glass sand molds |
| CN103861997A (en) * | 2012-12-13 | 2014-06-18 | 江苏万恒铸业有限公司 | Process for manufacturing nickel-base alloy precision cast mold shell |
| CN105414485A (en) * | 2015-11-30 | 2016-03-23 | 湖州南丰机械制造有限公司 | Method for preparing casting shell of fired mold |
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| 王再友等: "《铸造工艺设计及应用》", 29 February 2016, 北京：机械工业出版社 * |
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Application publication date: 20171107 |