CN110090919A - Aluminium brone casting melts casting technique - Google Patents
Aluminium brone casting melts casting technique Download PDFInfo
- Publication number
- CN110090919A CN110090919A CN201910185365.9A CN201910185365A CN110090919A CN 110090919 A CN110090919 A CN 110090919A CN 201910185365 A CN201910185365 A CN 201910185365A CN 110090919 A CN110090919 A CN 110090919A
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- Prior art keywords
- casting
- wax
- direct current
- pattern
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Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/086—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of aluminium brone castings to melt casting technique, include the following steps: the preparation of wax-pattern, prepare shell, dewaxing, Baking, molding casting, wherein the preparation of wax-pattern includes melting paraffin, and it is shaped to wax-pattern, the wax-pattern includes U-shaped runner and multiple part bodies, the U-shaped runner is made of the first direct current section, the second direct current section and circular sliding slopes section, ceramic filter is connected at the circular sliding slopes section, multiple part bodies are symmetricly set on the two sides of the second direct current section；Bottom pouring type pouring technique is used when molding casting, by the liquid metal of melting through the first direct current section, and it is poured upwards by the bottom of the first direct current section, liquid metal flows through ceramic filter, and it is finally injected at part body and is shaped to the part that need to be prepared, this process optimization form of runner occurs turbulent flow so as to cause a large amount of generations of casting flaw, and more easily keeps away slag when reducing traditional single runner.
Description
Technical field
The present invention relates to the melting casting techniques of aluminium brone casting.
Background technique
With the development of industry, various industries develop rapidly, and die industry is exactly using relatively extensive a kind of.Mold is
In industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain the various of required product
Mould and tool are mainly realized the processing of article shape by the change of physical state of the formed material, are known as " industry
The title of mother ".
Fusible pattern obtains large quantities of on probation in recent years, and fusible pattern is the mold that can be melted in hot water or steam.Precision-investment casting
Technique is made, is briefly exactly that meltability model is made with fusible material, the special fireproof coating of several layers is coated on it, passes through
It dries and hardens after forming a whole shell, then melt model from shell with steam or hot water, shell is then placed in sand
In case, dry moulding is filled in its surrounding, finally casting mold is put into roaster by high-temperature roasting, casting mold or shell are fired
Afterwards, Yu Qizhong casting molten metal and obtain casting.But existing investment precision casting technology mobility is poor, may meet
The problems such as to decarburization, cracking and folding, this is just that the production of people brings inconvenience.
Especially top pouring type technique is widely used in melting casting now, and Forming Quality cannot be guaranteed, and slag inclusion inside also can
More, the probability that typical casting flaw occurs in product is larger.
Summary of the invention
The purpose of the present invention is to solve the above the deficiencies in the prior art, replace existing top pouring type using bottom filling method
Method provides a kind of aluminium brone casting melting casting technique.
A kind of aluminium brone casting melting casting technique, includes the following steps:
1) preparation of wax-pattern: paraffin being melted, and is shaped to wax-pattern, and the wax-pattern includes U-shaped runner and multiple parts
Body, the U-shaped runner are made of the first direct current section, the second direct current section and circular sliding slopes section, at the circular sliding slopes section
It is connected with ceramic filter, multiple part bodies are symmetricly set on the two sides of the second direct current section；
2) shell is prepared；
3) it dewaxes；
4) Baking: by shell through high-temperature roasting, make shell that there is certain hardness；
5) molding casting: using bottom pouring type pouring technique, by the liquid metal of melting through the first direct current section, and it is straight by first
The bottom of stream section is poured upwards, and liquid metal flows through ceramic filter, and is finally injected at part body and is shaped to
The part that need to be prepared.
In order to guarantee the stability of ceramic filter, shaking of the ceramic filter in shell, the ceramic mistake are reduced
The diameter of filter disc is greater than the diameter at circular sliding slopes section.
Preferably, it is included in wax pattern surface spray refractory coating in the step 2, and sprays one layer and do not carry out sand, then by wax
Mould is placed in constant-temperature constant-humidity environment, is passed through high wind dry 4-6 hours and is dehydrated, above step is repeated several times, until wax-pattern table
The shell of face formation about 8mm thickness.
Preferably, the step 5 molding casting further includes the spectrum analysis to liquid metal before.
Preferably, the liquid metal is liquid aluminium bronze.
Complete part is as follows by being casted into mach integrated artistic process:
1) preparation of wax-pattern: paraffin being melted, and is shaped to wax-pattern, and the wax-pattern includes U-shaped runner and multiple parts
Body, the U-shaped runner are made of the first direct current section, the second direct current section and circular sliding slopes section, at the circular sliding slopes section
It is connected with ceramic filter, multiple part bodies are symmetricly set on the two sides of the second direct current section；
2) it prepares shell: being included in wax pattern surface spray refractory coating, and spray one layer and do not carry out sand, then wax-pattern is placed into perseverance
In constant temperature and humidity environment, it is passed through high wind dry 4-6 hours and is dehydrated, repeat above step several times, until wax pattern surface is formed about
The shell of 8mm thickness；
3) it dewaxes: by the way of first steam dewaxing again water dewaxing, dewaxing in two times to shell, it is subsequent to reduce
Casting slag inclusion；
4) Baking: by shell through high-temperature roasting, make shell that there is certain hardness；
5) molding casting: using bottom pouring type pouring technique, by the liquid metal of melting through the first direct current section, and it is straight by first
The bottom of stream section is poured upwards, and liquid metal flows through ceramic filter, and is finally injected at part body and is shaped to
The part that need to be prepared；Wherein temperature when casting pouring and the temperature of shell through test of many times it can be concluded that, to guarantee volume production
When yields, wherein when the production of copper water, using fast melting high temperature add refining agent, stand and reasonable charging sequence,
To obtain clean liquid metal；
6) casting cleaning: cutting dead head is put into shot-blasting machine and removes sand, reuses abrasive machine after removing sand and beaten
Mill；
7) it receives Sha Zaisheng: the old sand of shell is recycled, the dust passages through which vital energy circulates flush bag-type that shell generates when broken removes
Recycling and reusing after dirt is collected；
8) wet lapping: using water-spraying control, and dust, metal fillings are with water sedimentation during this；And regular scarfing cinder, use are wet
Formula grinds the problems such as fugitive dust can be effectively prevented, and the waste water after grinding is weakly acidic to be discharged into precipitating plus alkali neutralization heel row in cesspool
Enter waste water pipe network；
9) it is machined: Precision Machining, this process being carried out to the accessory after ball blast by machining modes such as milling, vehicle, mills
The metal fillings of middle generation can be with recycling and reusing.
The utility model has the advantages that
1, on the basis of traditional unidirectional runner, increase the first direct current section and circular sliding slopes section, and pass through the first direct current
The bottom of section carries out the injection of liquid metal upwards, guarantees that the liquid metal of melting is laminar as far as possible and is poured into
Type, the less risk that turbulent flow occurs more easily keep away slag to promote casting quality.
2, ceramic filter is placed in wax-pattern when preparing wax-pattern, after shaping investment pattern shell, it is molten that wax-pattern loses wax
Solution discharge, and ceramic filter stays in shell, and is in circular sliding slopes section and is filtered processing to the liquid metal of casting, with
Reduce oxide slag inclusion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wax-pattern；
1. 2. circular sliding slopes section of the first direct current section, 21. 3. second direct current section of ceramic filter, 4. part body.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
The examples are only for explaining the invention, is not intended to limit the scope of the present invention..
Aluminium brone casting melts casting technique, includes the following steps:
1) preparation of wax-pattern: paraffin being melted, and is shaped to wax-pattern, and the wax-pattern includes U-shaped runner and multiple parts
Body, the U-shaped runner are made of the first direct current section 1, the second direct current section 3 and circular sliding slopes section 2, the circular sliding slopes section
Ceramic filter 21 is connected at 2, the diameter of the ceramic filter 21 is greater than the diameter at circular sliding slopes section, and described is multiple
Part body 4 is symmetricly set on the two sides of the second direct current section 3；
2) it prepares shell: being included in wax pattern surface spray refractory coating, and spray one layer and do not carry out sand, then wax-pattern is placed into perseverance
In constant temperature and humidity environment, it is passed through high wind dry 4-6 hours and is dehydrated, repeat above step several times, until wax pattern surface is formed about
The shell of 8mm thickness；
3) it dewaxes: by the way of first steam dewaxing again water dewaxing, dewaxing in two times to shell, it is subsequent to reduce
Casting slag inclusion；
4) Baking: by shell through high-temperature roasting, make shell that there is certain hardness；
5) molding casting: the spectrum analysis to liquid metal, then bottom pouring type pouring technique is used, by the liquid metal of melting
It is poured upwards through the first direct current section 1, and by the bottom of the first direct current section 1, liquid metal flows through ceramic filter, and final
It is injected at part body 4 and is shaped to the part that need to be prepared；The liquid metal is liquid aluminium bronze.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. aluminium brone casting melts casting technique, which comprises the steps of:
1) preparation of wax-pattern: paraffin being melted, and is shaped to wax-pattern, and the wax-pattern includes U-shaped runner and multiple part bodies,
The U-shaped runner is made of the first direct current section, the second direct current section and circular sliding slopes section, is connected with pottery at the circular sliding slopes section
Porcelain filter, multiple part bodies are symmetricly set on the two sides of the second direct current section；
2) shell is prepared；
3) it dewaxes；
4) Baking: by shell through high-temperature roasting, form shell；
5) molding casting: bottom pouring type pouring technique is used, by the liquid metal of melting through the first direct current section, and by the first direct current section
Bottom be poured upwards, liquid metal flows through ceramic filter, and is finally injected at part body and is shaped to need to make
Standby part.
2. aluminium brone casting according to claim 1 melts casting technique, which is characterized in that the ceramic filter
Diameter is greater than the diameter at circular sliding slopes section.
3. aluminium brone casting according to claim 1 melts casting technique, which is characterized in that be included in the step 2
Wax pattern surface spray refractory coating, and spray one layer and do not carry out sand, then wax-pattern is placed in constant-temperature constant-humidity environment, it is dry to be passed through high wind
It is dehydrated within 4-6 hours, repeats above step several times, until wax pattern surface forms the shell of about 8mm thickness.
4. aluminium brone casting according to claim 1 melts casting technique, which is characterized in that step 5 molding is poured
It further include the spectrum analysis to liquid metal before note.
5. aluminium brone casting according to claim 1 melts casting technique, which is characterized in that the liquid metal is liquid
State aluminium bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185365.9A CN110090919A (en) | 2019-03-12 | 2019-03-12 | Aluminium brone casting melts casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185365.9A CN110090919A (en) | 2019-03-12 | 2019-03-12 | Aluminium brone casting melts casting technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110090919A true CN110090919A (en) | 2019-08-06 |
Family
ID=67443118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910185365.9A Pending CN110090919A (en) | 2019-03-12 | 2019-03-12 | Aluminium brone casting melts casting technique |
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Citations (10)
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|---|---|---|---|---|
| BG100162A (en) * | 1993-05-19 | 1996-07-31 | Pont-A-Mousson S.A. | Device for molten metal feeding, in particular for molten cast iron, for casting machine and casting installation supplied with such a device |
| CN102211143A (en) * | 2011-05-21 | 2011-10-12 | 王吉龙 | Copper-aluminum alloy bottom pouring type pouring system structure |
| CN202123210U (en) * | 2011-05-21 | 2012-01-25 | 王吉龙 | Bottom gating system structure of aluminum copper alloy |
| CN203992254U (en) * | 2014-07-29 | 2014-12-10 | 扬州峰明金属制品有限公司 | Alloy in lightweight rising pouring Slot Gating System |
| CN104259389A (en) * | 2014-09-09 | 2015-01-07 | 西安航空动力股份有限公司 | Central casting pipe for single crystal casting and preparation method thereof |
| CN104907495A (en) * | 2015-07-14 | 2015-09-16 | 哈尔滨工业大学 | Preparation method of TiAl alloy investment casting shell |
| CN105057593A (en) * | 2015-07-30 | 2015-11-18 | 宁波天业精密铸造有限公司 | Investment casting technology for copper alloy casting |
| CN105290333A (en) * | 2015-12-02 | 2016-02-03 | 株洲中航动力精密铸造有限公司 | Bottom pouring type pouring system |
| CN107931543A (en) * | 2017-12-21 | 2018-04-20 | 马鞍山市华达冶金机械有限公司 | A kind of tubulose thin wall steel pieces casting mould and its design method |
| CN107931523A (en) * | 2017-12-27 | 2018-04-20 | 安徽应流航源动力科技有限公司 | A kind of small-medium size single crystal blade wax module tree structure and preparation method thereof |
-
2019
- 2019-03-12 CN CN201910185365.9A patent/CN110090919A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG100162A (en) * | 1993-05-19 | 1996-07-31 | Pont-A-Mousson S.A. | Device for molten metal feeding, in particular for molten cast iron, for casting machine and casting installation supplied with such a device |
| CN102211143A (en) * | 2011-05-21 | 2011-10-12 | 王吉龙 | Copper-aluminum alloy bottom pouring type pouring system structure |
| CN202123210U (en) * | 2011-05-21 | 2012-01-25 | 王吉龙 | Bottom gating system structure of aluminum copper alloy |
| CN203992254U (en) * | 2014-07-29 | 2014-12-10 | 扬州峰明金属制品有限公司 | Alloy in lightweight rising pouring Slot Gating System |
| CN104259389A (en) * | 2014-09-09 | 2015-01-07 | 西安航空动力股份有限公司 | Central casting pipe for single crystal casting and preparation method thereof |
| CN104907495A (en) * | 2015-07-14 | 2015-09-16 | 哈尔滨工业大学 | Preparation method of TiAl alloy investment casting shell |
| CN105057593A (en) * | 2015-07-30 | 2015-11-18 | 宁波天业精密铸造有限公司 | Investment casting technology for copper alloy casting |
| CN105290333A (en) * | 2015-12-02 | 2016-02-03 | 株洲中航动力精密铸造有限公司 | Bottom pouring type pouring system |
| CN107931543A (en) * | 2017-12-21 | 2018-04-20 | 马鞍山市华达冶金机械有限公司 | A kind of tubulose thin wall steel pieces casting mould and its design method |
| CN107931523A (en) * | 2017-12-27 | 2018-04-20 | 安徽应流航源动力科技有限公司 | A kind of small-medium size single crystal blade wax module tree structure and preparation method thereof |
Non-Patent Citations (1)
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| 胡忠等: "《铝镁合金铸造工艺及质量控制》", 30 April 1990, 航空工业出版社 * |
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Application publication date: 20190806 |