CN104550718A - Preparation method of investment-casted mold shell - Google Patents
Preparation method of investment-casted mold shell Download PDFInfo
- Publication number
- CN104550718A CN104550718A CN201310488442.0A CN201310488442A CN104550718A CN 104550718 A CN104550718 A CN 104550718A CN 201310488442 A CN201310488442 A CN 201310488442A CN 104550718 A CN104550718 A CN 104550718A
- Authority
- CN
- China
- Prior art keywords
- quartz sand
- preparation
- wax
- mold
- rice husk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
The invention discloses a preparation method of an investment-casted mold shell. The method comprises preparation steps as follows: taking and placing silica gel into a stirrer to be evenly stirred, then wrapping a wax mold wrapped with slurry with the silica gel which is 1 mm thick, continuously scattering quartz sand and rice husks onto the wax mold wrapped with the silica gel until the surface of the wax mold is wrapped with quartz sand and the rice husks which are 2 mm thick, placing the wax mold in a ventilated position for air drying, and directly placing the wax mold into a roasting furnace for roasting after the wax mold is air-dried. The method has the characteristics that the strength of the mold shell can be increased, the mold does not deform after demolding, sufficient burning of the rice husks can be realized in the high-temperature roasting process, the air permeability during casting can be improved, and the rice husks after burning can produce a large quantity of silicon dioxide to play a deoxidization role.
Description
Technical field
The present invention is a kind of investment casting shell, particularly relates to a kind of preparation method of investment casting shell, is applied to casting field.
Background technology
In traditional process for making shell, easily occur insufficient strength, the shortcomings such as permeability difference, some intensity reaches, and does not but have good gas permeability, some good permeabilities, and intensity does not but reach, and causes the housing produced not reach requirement.
Summary of the invention
For above-mentioned technical problem, the invention provides one have increase form strength, after formed product, the preparation method of the investment casting shell of pore-free, shrinkage cavity
.
Technical problem solved by the invention realizes by the following technical solutions: a kind of preparation method of investment casting shell, its preparation process is: by the Ludox got, put into mixer to stir, then the wax-pattern wrapping slurry being wrapped again thickness is 1 millimeter of Ludox, quartz sand and rice husk is constantly sprinkled into by the wax-pattern wrapping up in Ludox, until after wax-pattern surface wraps the quartz sand of 2 mm of thickness, rice husk, be placed on and carry out in ventilation air-dry, air-dry rear roasting stove of directly putting into carries out roasting.
Described quartz sand, rice husk, the content of each composition is: quartz sand is 50-100 kilogram, and rice husk is 100-150 kilogram.
Described rice husk produces the rice hull ash containing silica after combustion.
The invention has the beneficial effects as follows: in the process of shell processed, after adding rice husk, can increase the intensity of formwork, and demoulding rear mold is indeformable, when casting, rice husk is energy Thorough combustion in the roasting process of high temperature, the oxygen of at substantial in the process of combusting rice hull, can increase gas permeability during casting, the rice husk after burning can produce a large amount of silica, play the effect of deoxidation.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Be 50 kilograms to get quartz sand, rice husk is that the present invention will be described further for how many double centners:
By the Ludox got, put into mixer to stir, then the wax-pattern wrapping slurry being wrapped again thickness is 1 millimeter of Ludox, quartz sand 50 kilograms is constantly sprinkled into by the wax-pattern wrapping up in Ludox, with rice husk double centner, until after wax-pattern surface wraps the quartz sand of 2 mm of thickness, rice husk, be placed on and carry out in ventilation air-dry, air-dry rear roasting stove of directly putting into carries out roasting.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Therefore, although this description with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (3)
1. the preparation method of an investment casting shell, it is characterized in that: its preparation process is: by the Ludox got, put into mixer to stir, then the wax-pattern wrapping slurry being wrapped again thickness is 1 millimeter of Ludox, quartz sand and rice husk is constantly sprinkled into by the wax-pattern wrapping up in Ludox, until after wax-pattern surface wraps the quartz sand of 2 mm of thickness, rice husk, be placed on and carry out in ventilation air-dry, air-dry rear roasting stove of directly putting into carries out roasting.
2. the preparation method of a kind of investment casting shell according to claim 1, is characterized in that: described quartz sand, rice husk, and the content of each composition is: quartz sand is 50-100 kilogram, and rice husk is 100-150 kilogram.
3. the preparation method of a kind of investment casting shell according to claim 1 and 2, is characterized in that: described rice husk produces the rice hull ash containing silica after combustion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310488442.0A CN104550718A (en) | 2013-10-18 | 2013-10-18 | Preparation method of investment-casted mold shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310488442.0A CN104550718A (en) | 2013-10-18 | 2013-10-18 | Preparation method of investment-casted mold shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550718A true CN104550718A (en) | 2015-04-29 |
Family
ID=53068381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310488442.0A Pending CN104550718A (en) | 2013-10-18 | 2013-10-18 | Preparation method of investment-casted mold shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104550718A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826987A (en) * | 2015-05-05 | 2015-08-12 | 柳州科尔特锻造机械有限公司 | Process for improving surface quality of casting |
| CN106825390A (en) * | 2016-12-28 | 2017-06-13 | 西安西工大超晶科技发展有限责任公司 | A kind of preparation of the method and investment-casting for improving investment casting formwork collapsibility |
| CN107745076A (en) * | 2017-09-01 | 2018-03-02 | 东风精密铸造安徽有限公司 | A kind of Investigation of Technics Manufacturing Colloidal Silica Shell Mould in Investment Casting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001080745A (en) * | 1999-09-13 | 2001-03-27 | Sugano Farm Mach Mfg Co Ltd | Transshipping device for water-permeable material such as chaff |
| CN101184563A (en) * | 2005-03-31 | 2008-05-21 | 邦特罗克实业公司 | Investment casting mold and method of manufacture |
| CN101213036A (en) * | 2005-06-08 | 2008-07-02 | 邦特罗克实业公司 | Investment casting shells and compositions including rice hull ash |
| CN202199719U (en) * | 2011-08-29 | 2012-04-25 | 贵州安吉航空精密铸造有限责任公司 | Fired mold for casting high temperature alloy thin section casting |
-
2013
- 2013-10-18 CN CN201310488442.0A patent/CN104550718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001080745A (en) * | 1999-09-13 | 2001-03-27 | Sugano Farm Mach Mfg Co Ltd | Transshipping device for water-permeable material such as chaff |
| CN101184563A (en) * | 2005-03-31 | 2008-05-21 | 邦特罗克实业公司 | Investment casting mold and method of manufacture |
| CN101213036A (en) * | 2005-06-08 | 2008-07-02 | 邦特罗克实业公司 | Investment casting shells and compositions including rice hull ash |
| CN202199719U (en) * | 2011-08-29 | 2012-04-25 | 贵州安吉航空精密铸造有限责任公司 | Fired mold for casting high temperature alloy thin section casting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826987A (en) * | 2015-05-05 | 2015-08-12 | 柳州科尔特锻造机械有限公司 | Process for improving surface quality of casting |
| CN106825390A (en) * | 2016-12-28 | 2017-06-13 | 西安西工大超晶科技发展有限责任公司 | A kind of preparation of the method and investment-casting for improving investment casting formwork collapsibility |
| CN107745076A (en) * | 2017-09-01 | 2018-03-02 | 东风精密铸造安徽有限公司 | A kind of Investigation of Technics Manufacturing Colloidal Silica Shell Mould in Investment Casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |