CN101954454A - Method for eliminating casting heating cracks - Google Patents
Method for eliminating casting heating cracks Download PDFInfo
- Publication number
- CN101954454A CN101954454A CN 201010507519 CN201010507519A CN101954454A CN 101954454 A CN101954454 A CN 101954454A CN 201010507519 CN201010507519 CN 201010507519 CN 201010507519 A CN201010507519 A CN 201010507519A CN 101954454 A CN101954454 A CN 101954454A
- Authority
- CN
- China
- Prior art keywords
- formwork
- roasting
- asbestos
- wax
- pattern module
- 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
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a method for eliminating casting heating cracks, which is carried out according to the following steps of: firstly, taking a wax mould module corresponding to a casting with great different in thickness, coating paint on the surface of the wax mould module, and sequentially carrying out dewaxing, roasting and cooling treatment to obtain a mould shell; then, wrapping the mould shell on the part corresponding to the thin wall of the casting with asbestos; next, roasting the wrapped mould shell; finally taking the roasted mould shell out and pouring. The invention improves the pass rate of the castings, is convenient to operate, has no increment on subsequent polishing work amount, and is an effective method for solving the problem that the casting heating cracks are generated on the castings with greatly different walls in thickness due to shrinkage stress.
Description
Technical field
The present invention relates generally to the hot investment casting field, relates in particular to a kind of method that solves the casting thermal fragmentation line of thin-walled, wall thickness great disparity.
Background technology
Foundry goods is in process of setting, and when alloy temperature dropped near actual solidus, its intensity and plasticity were extremely low, in case shrinkage stress surpasses strength degree, very easily produced fire check.Usually occur in that foundry goods is thick, thin-walled handing-over, thermal center or corner.Exist severe crack to damage its mechanical performance in the foundry goods, can have an accident because of the crackle expansion makes the foundry goods fracture during use.So neither crackle that allows of any foundry goods.
Summary of the invention
The object of the invention is exactly in order to remedy the defective of prior art, a kind of method that solves the casting thermal fragmentation line to be provided, and the method both can improve casting qualified rate, reduces production costs, is convenient to again operation.
The present invention is achieved by the following technical solutions:
A kind of method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get the wax-pattern module corresponding, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module with thin-section casting.
Secondly, wrap up at formwork external application asbestos.
Next, parcel is good formwork carries out roasting.
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
A kind of method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get and the wall thickness corresponding wax-pattern module of foundry goods that differs greatly, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module.
Secondly, wrap up with asbestos at the position of corresponding foundry goods thin-walled on formwork.
Next, parcel is good formwork carries out roasting.
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
Described a kind of method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get the wax-pattern module corresponding, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module with thin-section casting.
Secondly,, outside asbestos, fix with iron wire at formwork external application asbestos parcel, perhaps bonding with waterglass at the position of asbestos interface.
Next, parcel formwork is well put into roaster and carry out roasting.
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
Described a kind of method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get and the wall thickness corresponding wax-pattern module of foundry goods that differs greatly, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module.
Secondly, wrap up with asbestos at the position of corresponding foundry goods thin-walled on formwork, fixes outside asbestos with iron wire, perhaps bonding with waterglass at the position of asbestos interface.
Next, parcel formwork is well put into roaster and carry out roasting.
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
The present invention adopts the asbestos parcel after coagulation time obviously to prolong, and reduces foundry goods because of solidifying the too fast fire check that produces.
The present invention is applicable to the foundry goods of thin-walled, wall thickness great disparity.At first, thin-section casting because cooling velocity is too fast, easily produces fire check after cast.Adopting asbestos that the wax-pattern module is incubated slow cooling is effective solution.Secondly, the part that wall thickness differs greatly, the cooling velocity difference easily produces fire check everywhere.Adopt asbestos that foundry goods thin-walled place is incubated slow cooling, make its cooling velocity and heavy wall place approaching consistent, can effectively solve the fire check that shrinkage stress causes.
Advantage of the present invention is:
The present invention improved foundry goods qualification rate, be convenient to operation, and do not increase follow-up polishing workload, be a kind of effective ways that solve the casting thermal fragmentation line that thin-walled, wall thickness great disparity class foundry goods produce because of shrinkage stress.
Description of drawings:
Fig. 1 is the structural representation corresponding with embodiment one.
Fig. 2 is the structural representation corresponding with embodiment two.
The specific embodiment:
Embodiment one:
A kind of method that solves the casting thermal fragmentation line, carry out according to following steps successively:
At first, get the wax-pattern module corresponding, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork 1 on the surface of described wax-pattern module with thin-section casting.
Secondly, at formwork 1 external application asbestos 2 parcels, bonding with waterglass at the position of asbestos 2 interfaces.
Next, parcel formwork 1 is well put into roaster and carry out roasting.
At last, the formwork 1 that roasting is good takes out to be poured into a mould, and gets final product.
Embodiment two:
A kind of method that solves the casting thermal fragmentation line, carry out according to following steps successively:
At first, get and the wall thickness corresponding wax-pattern module of foundry goods that differs greatly, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork 1 on the surface of described wax-pattern module.
Secondly, the position of corresponding foundry goods thin-walled uses waterglass bonding with asbestos 2 parcels at the position of asbestos 2 interfaces on formwork 1.
Next, parcel formwork 2 is well put into roaster and carry out roasting.
At last, the formwork 2 that roasting is good takes out to be poured into a mould, and gets final product.
Claims (4)
1. method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get the wax-pattern module corresponding, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module with thin-section casting;
Secondly, wrap up at formwork external application asbestos;
Next, parcel is good formwork carries out roasting;
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
2. method that solves the casting thermal fragmentation line is characterized in that: carry out according to following steps successively:
At first, get and the wall thickness corresponding wax-pattern module of foundry goods that differs greatly, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module;
Secondly, wrap up with asbestos at the position of corresponding foundry goods thin-walled on formwork;
Next, parcel is good formwork carries out roasting;
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
3. a kind of method that solves the casting thermal fragmentation line according to claim 1 is characterized in that: carry out according to following steps successively:
At first, get the wax-pattern module corresponding, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module with thin-section casting;
Secondly,, outside asbestos, fix with iron wire at formwork external application asbestos parcel, perhaps bonding with waterglass at the position of asbestos interface;
Next, parcel formwork is well put into roaster and carry out roasting;
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
4. a kind of method that solves the casting thermal fragmentation line according to claim 2 is characterized in that: carry out according to following steps successively:
At first, get and the wall thickness corresponding wax-pattern module of foundry goods that differs greatly, be coated with extension coating, and dewax successively, after the roasting, cooling processing, obtain formwork on the surface of described wax-pattern module;
Secondly, wrap up with asbestos at the position of corresponding foundry goods thin-walled on formwork, fixes outside asbestos with iron wire, perhaps bonding with waterglass at the position of asbestos interface;
Next, parcel formwork is well put into roaster and carry out roasting;
At last, the formwork that roasting is good takes out and pours into a mould, and gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507519 CN101954454A (en) | 2010-10-14 | 2010-10-14 | Method for eliminating casting heating cracks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507519 CN101954454A (en) | 2010-10-14 | 2010-10-14 | Method for eliminating casting heating cracks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101954454A true CN101954454A (en) | 2011-01-26 |
Family
ID=43482179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010507519 Pending CN101954454A (en) | 2010-10-14 | 2010-10-14 | Method for eliminating casting heating cracks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101954454A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506574A (en) * | 2012-06-27 | 2014-01-15 | 嘉善鑫海精密铸件有限公司 | Casting method for pouring and molding thin-wall investment pattern steel casting |
| CN104439076A (en) * | 2014-12-08 | 2015-03-25 | 中国南方航空工业(集团)有限公司 | Method for controlling grain size of casting |
| CN105057645A (en) * | 2015-05-25 | 2015-11-18 | 中国航空工业集团公司北京航空材料研究院 | Method for preventing crack defect in ZTG 6 alloy casting cooling process |
| CN107685134A (en) * | 2017-09-12 | 2018-02-13 | 东方电气集团东方汽轮机有限公司 | It is a kind of to solve the method with hat combustion engine movable vane piece fire check |
| CN107755635A (en) * | 2017-09-12 | 2018-03-06 | 东方电气集团东方汽轮机有限公司 | A kind of method for solving combustion engine shrouded blade leaf top R angles fire check |
| CN107843115A (en) * | 2017-12-12 | 2018-03-27 | 安徽应流集团霍山铸造有限公司 | A kind of large-scale precision casting formwork calciner |
| CN114535506A (en) * | 2022-04-26 | 2022-05-27 | 河北钢研德凯科技有限公司 | Method for controlling solidification of investment casting magnesium alloy casting and investment casting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704188A (en) * | 2004-05-28 | 2005-12-07 | 沈阳铸造研究所 | Hot investment precision casting technique for rare earth ceramic cased titanium alloys |
| CN101362187A (en) * | 2008-09-03 | 2009-02-11 | 湖北省丹江口丹传汽车传动轴有限公司 | Investment casting method |
| CN101530892A (en) * | 2009-03-31 | 2009-09-16 | 宁波通达精密铸造有限公司 | Investment casting thin-walled part casting method |
| CN101829776A (en) * | 2010-05-26 | 2010-09-15 | 中国科学院金属研究所 | Method for preparing high-temperature alloy thin wall cast with fine structure |
-
2010
- 2010-10-14 CN CN 201010507519 patent/CN101954454A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704188A (en) * | 2004-05-28 | 2005-12-07 | 沈阳铸造研究所 | Hot investment precision casting technique for rare earth ceramic cased titanium alloys |
| CN101362187A (en) * | 2008-09-03 | 2009-02-11 | 湖北省丹江口丹传汽车传动轴有限公司 | Investment casting method |
| CN101530892A (en) * | 2009-03-31 | 2009-09-16 | 宁波通达精密铸造有限公司 | Investment casting thin-walled part casting method |
| CN101829776A (en) * | 2010-05-26 | 2010-09-15 | 中国科学院金属研究所 | Method for preparing high-temperature alloy thin wall cast with fine structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506574A (en) * | 2012-06-27 | 2014-01-15 | 嘉善鑫海精密铸件有限公司 | Casting method for pouring and molding thin-wall investment pattern steel casting |
| CN103506574B (en) * | 2012-06-27 | 2015-11-25 | 嘉善鑫海精密铸件有限公司 | The casting method of thin-walled Steel Casting in Investment Casting moulding by casting |
| CN104439076A (en) * | 2014-12-08 | 2015-03-25 | 中国南方航空工业(集团)有限公司 | Method for controlling grain size of casting |
| CN105057645A (en) * | 2015-05-25 | 2015-11-18 | 中国航空工业集团公司北京航空材料研究院 | Method for preventing crack defect in ZTG 6 alloy casting cooling process |
| CN107685134A (en) * | 2017-09-12 | 2018-02-13 | 东方电气集团东方汽轮机有限公司 | It is a kind of to solve the method with hat combustion engine movable vane piece fire check |
| CN107755635A (en) * | 2017-09-12 | 2018-03-06 | 东方电气集团东方汽轮机有限公司 | A kind of method for solving combustion engine shrouded blade leaf top R angles fire check |
| CN107843115A (en) * | 2017-12-12 | 2018-03-27 | 安徽应流集团霍山铸造有限公司 | A kind of large-scale precision casting formwork calciner |
| CN114535506A (en) * | 2022-04-26 | 2022-05-27 | 河北钢研德凯科技有限公司 | Method for controlling solidification of investment casting magnesium alloy casting and investment casting method |
| CN114535506B (en) * | 2022-04-26 | 2022-07-19 | 河北钢研德凯科技有限公司 | Method for controlling solidification of investment casting magnesium alloy casting and investment casting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101954454A (en) | Method for eliminating casting heating cracks | |
| CN102717029B (en) | Casting method for large thin-wall shell aluminium alloy casting | |
| CN102091757B (en) | Integral precision casting method for large thin-wall casing part | |
| CN104493091A (en) | Investment casting method of aluminum alloy pores | |
| CN105364002B (en) | A kind of full form casting process for accelerating casting solidification to cool down | |
| CN101670418A (en) | Shell making process for elongated hole flange investment casting | |
| CN103170578A (en) | Ceramic type precise casting method | |
| CN104190875A (en) | Composite casting mold forming method for complex thin-wall casing | |
| CN107755635A (en) | A kind of method for solving combustion engine shrouded blade leaf top R angles fire check | |
| CN104550715B (en) | Method for manufacturing integral casting metal mould | |
| CN102699279A (en) | Large-size impeller processing technique in precise casting | |
| CN102896278A (en) | Preparation method for hollow mold core having high temperature deformability and removability | |
| CN104745854A (en) | Vacuum-air pressure casting method of three-dimensional network ceramic-metal friction composite material | |
| CN107695295A (en) | A kind of casting processing method of fusible pattern | |
| CN103894549A (en) | Integral precision casting method for metal slot drum blank of automatic winder | |
| CN103949587B (en) | A kind of casting mold preparation method reducing antigravity casting large-scale wall thickness sudden change class nickel base superalloy cast casting stress | |
| CN107520405A (en) | A kind of high-performance investment casting shell | |
| CN104841883A (en) | Precision casting process of casting part | |
| CN104550700A (en) | Cold mold casting method of rubber | |
| CN102274940A (en) | Centrifugal pouring method for water glass investment casting | |
| CN103350183A (en) | Reinforced-layer paint for investment casting | |
| CN102463322A (en) | Method for improving quality of investment precision cast shuttering | |
| CN202199719U (en) | Fired mold for casting high temperature alloy thin section casting | |
| CN101992286A (en) | Vacuum low-pressure casting method for casting copper impeller of water pump | |
| CN202087770U (en) | Improved structure of wax mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110126 |