CN103752810A - Alumina-based ceramic core removal method and special device thereof - Google Patents
Alumina-based ceramic core removal method and special device thereof Download PDFInfo
- Publication number
- CN103752810A CN103752810A CN201410007414.7A CN201410007414A CN103752810A CN 103752810 A CN103752810 A CN 103752810A CN 201410007414 A CN201410007414 A CN 201410007414A CN 103752810 A CN103752810 A CN 103752810A
- Authority
- CN
- China
- Prior art keywords
- ceramic core
- based ceramic
- hollow blade
- alumina based
- reactor
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 58
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000009835 boiling Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 6
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 149
- 239000003513 alkali Substances 0.000 claims description 59
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 239000002585 base Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Disclosed are an alumina-based ceramic core removal method and a special device thereof. The method includes placing a hollow blade with an alumina-based ceramic core into a reaction kettle fully filled with lye, and then sealing the reaction kettle; heating the reaction kettle in high-temperature, high-pressure and airtight environment; decreasing the pressure of the reaction kettle till being lower than the saturated vapor pressure of the lye, allowing the lye to be boiled to enter channels of the hollow blade for 10 to 30 seconds; recovering the pressure in the reaction kettle to stop boiling the lye and recover stable statues; removing residual lye and removed ceramic core from the hollow blade, and finally utilizing acid to neutralize residual lye on the hollow blade, and washing with water. The method has the advantages that reacted waste lye in the cavity of the hollow blade can be discharged rapidly through high temperature and increasing and decreasing the pressure repeatedly, good stirring effect is provided by periodically boiling the lye, the lye is guaranteed contacting with the alumina-based ceramic core fully, reacting efficiency is improved, and removal speed of the alumina-based ceramic core is increased significantly.
Description
Technical field
The invention belongs to high temperature alloy hollow blade and remove technical field, relate to a kind of method that removes alumina based ceramic core, the invention still further relates to the special equipment that removes alumina based ceramic core.
Background technology
Along with improving constantly of aero-engine performance, before the turbine of engine, inlet temperature has approached the fusing point that even exceedes turbo blade material, must adopt air cooling method to carry out cooling to blade.In high temperature alloy air cooling hollow blade foundry production, generally adopt ceramic core to form its complicated inner cavity structure.
Alumina base core has more excellent heat resistance and heat endurance, is particularly suitable for the casting of high-temperature alloy blades under directional solidification and monocrystalline condition.Because the main component of alumina base core is corundum, it reacts with concentrated acid concentrated base hardly under the condition of normal mild heat, is therefore difficult to remove.
Many scholars both domestic and external have carried out system research to ceramic core removing process, three kinds of methods of general employing remove ceramic core: the one, by the melting villiaumite of 200～400 ℃ of foundry goods immersions, because being dissolved in water, villiaumite deviates from core, or assisted water under high pressure to rinse to accelerate depoling speed, but this is only applicable to the simple foundry goods of cavity structure, for complicated inner cavity structure, effect is very limited; The 2nd, it is depoling in the KOH of 400～500 ℃ or NaOH or melting alkali lye that both mix that foundry goods is immersed in to temperature, this medium is very fast to the corrosion rate of ceramic core, but in actual production, find that foundry goods also can be subject to the corrosion of certain degree, when serious, foundry goods is thoroughly scrapped.The 3rd, the KOH of employing high concentration or the NaOH aqueous solution additional mechanical stir or ultrasonic wave vibrates etc., and such technique is smaller to the corrosivity of cast(ing) surface, but exists the depoling time long, inefficient problem, and equipment mechanism complexity.How the alumina based ceramic core that removes of the low damage of high efficiency remains one of problem demanding prompt solution in current production.
Summary of the invention
The object of this invention is to provide a kind of method that removes alumina based ceramic core, solved the low problem of removal efficiency that existing removal methods exists.
Another object of the present invention is to provide the above-mentioned special equipment that removes alumina based ceramic core.
The technical solution adopted in the present invention is, a kind of method that removes alumina based ceramic core is specifically implemented according to following steps:
Step 1, by be placed in the reactor that is filled with alkali lye with the hollow blade of alumina based ceramic core, then seals reactor;
Step 3, is down to reacting kettle inner pressure below the saturated vapour pressure of alkali lye, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 10～30s;
Feature of the present invention is also,
Alkali lye is that concentration is 40%～60% KOH, NaOH or both mixed solutions.
In step 2, temperature is controlled at 150 ℃～350 ℃, and pressure is controlled at 0.5～5MPa.
Acid in step 5 is that concentration is 3%～5% hydrochloric acid.
Another technical scheme of the present invention is, a kind of special equipment that removes alumina based ceramic core, comprise autoclave, in autoclave, be provided with reactor, between reactor and autoclave, be provided with calandria, above autoclave, be provided with high pressure kettle cover, thermocouple enters in reactor through high pressure kettle cover, thermocouple is connected with temperature control instrument, Pressure gauge passes cooling device by pipeline and high pressure kettle cover is communicated with reactor, manometric pipeline is provided with relief valve and safety valve, is provided with part basket in reactor.
Feature of the present invention is also,
High pressure kettle cover is connected with autoclave by fastening bolt.
Autoclave inside upper part is provided with boss, and part basket is connected on boss.
Thermocouple is provided with protective casing outward, and reactor, high pressure kettle cover and protective casing adopt corrosion and heat resistant nickel-base high-temperature alloy material to be prepared from.
The invention has the beneficial effects as follows, the present invention removes the method for alumina based ceramic core, by high temperature and the spent lye that lifting pressure has reacted the cavity inside of hollow blade repeatedly discharge fast, good stirring action is played in the periodicity of alkali lye boiling simultaneously, allow product be diffused rapidly in aqueous slkali, guaranteed that active alkali lye fully contacts with alumina based ceramic core and reaction efficiency is improved, and obviously improves alumina based ceramic core and removes speed.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention removes the special equipment of alumina based ceramic core.
In figure, 1. autoclave, 2. high pressure kettle cover, 3. reactor, 4. part basket, 5. calandria, 6. thermocouple, 7. temperature control instrument, 8. Pressure gauge, 9. relief valve, 10. safety valve, 11. cooling devices, 12. fastening bolts, 13. hollow blades, 14. alkali lye.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of method that removes alumina based ceramic core of the present invention, specifically according to following steps, implement:
Step 1, will be placed in the reactor that is filled with alkali lye with the hollow blade of alumina based ceramic core, then by reactor sealing, alkali lye is that concentration is 40%～60% KOH, NaOH or both mixed solutions;
Step 3, is down to reacting kettle inner pressure below the saturated vapour pressure of alkali lye, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 10～30s;
The present invention removes the method for alumina based ceramic core, by high temperature and the spent lye that lifting pressure has reacted the cavity inside of hollow blade repeatedly discharge fast, good stirring action is played in the periodicity of alkali lye boiling simultaneously, allow product be diffused rapidly in aqueous slkali, guaranteed that active alkali lye fully contacts with alumina based ceramic core and reaction efficiency is improved, and obviously improves alumina based ceramic core and removes speed.
A kind of special equipment that removes alumina based ceramic core of the present invention, as shown in Figure 1, comprise autoclave 1, in autoclave 1, be provided with reactor 3, between reactor 3 and autoclave 1, be provided with calandria 5, autoclave 1 is provided with high pressure kettle cover 2 above, high pressure kettle cover 2 is connected with autoclave 1 by fastening bolt 12, thermocouple 6 enters in reactor 3 through high pressure kettle cover 2, thermocouple 6 is connected with temperature control instrument 7, Pressure gauge 8 passes cooling device 11 by pipeline and high pressure kettle cover 2 is communicated with reactor 3, the pipeline of Pressure gauge 8 is provided with relief valve 9 and safety valve 10, in reactor 3, be provided with part basket 4, autoclave 1 inside upper part is provided with boss, part basket 4 is connected on boss.The outer protective casing that is provided with of thermocouple 6, reactor 3, high pressure kettle cover 2 and protective casing adopt corrosion and heat resistant nickel-base high-temperature alloy material to be prepared from.
Because thermocouple 6 can not directly contact with alkali lye 14, need carry out casing protection to it, its end, below alkali lye 14 liquid levels, belongs to the annex of thermocouple.
During use, unclamp fastening bolt 12, high pressure kettle cover 2 is risen, after high pressure kettle cover 2 rises completely, in reactor 3, be filled with alkali lye 14, the liquid level of alkali lye 14 need, lower than 2/3rds of reactor 3 whole heights, be placed on the hollow blade with alumina based ceramic core 13 in part basket 4, and the peak of hollow blade 13 is positioned under alkali lye plane, cover high pressure kettle cover 2 and tighten fastening bolt 12, close relief valve 9 and safety valve 10, open cold radiator cooler 12, passes into cooling circulating water.Open temperature control instrument 7, open calandria 5 reactor 3 is heated, utilize thermocouple 6 to carry out thermometric, when alkali liquid temperature reaches 150～350 ℃, utilize temperature control instrument 7 to control alkali lye 14 temperature in still, make it to keep constant.Now still internal pressure is about 0.5～5MPa, and still internal pressure is monitored by Pressure gauge 8, under this state, keeps 10～30min, then opens relief valve 9, still internal pressure is down to below the saturated vapour pressure of alkali lye.Due to reducing of reactor 3 internal pressures, residue gas in hollow blade 13 internal voids is known from experience the spent lye having reacted completely in hole is discharged to hole, and the reducing of pressure also can make alkali lye 14 seethe with excitement, and alkali lye 14 is played to stirring action.Cooling device 11 can make steam condensing reflux to reactor 3, avoids alkali lye 14 concentration to change.Under fluidized state, keep after 10～30s, close relief valve 9, make reactor 3 internal pressures return to the front state of pressure release, alkali lye 14 stops boiling.Repeat aforesaid operations more than 2 times, until aluminium oxide core is completely removed, stop subsequently heating, treat that Pressure Drop is to 0.2MPa, open relief valve 9 and carry out pressure release to atmospheric pressure state, unclamp fastening bolt 12, open high pressure kettle cover 2, take out hollow blade 13, then adopting concentration is in 3%～5% hydrochloric acid solution and residual alkali lye, finally with clear water, cleans.
Embodiment 1
Step 1, the KOH that is 45% by concentration is filled with in reactor, then, by being placed in part basket with the hollow blade of alumina based ceramic core, then reactor is sealed;
Step 3, is down to 2.0MPa by reacting kettle inner pressure, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 15s;
Step 1, the NaOH that is 40% by concentration is filled with in reactor, then, by being placed in part basket with the hollow blade of alumina based ceramic core, then reactor is sealed;
Step 3, is down to 0.5MPa by reacting kettle inner pressure, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 20s;
Embodiment 3
Step 1, the KOH that is 60% by concentration is filled with in reactor, then, by being placed in part basket with the hollow blade of alumina based ceramic core, then reactor is sealed;
Step 3, is down to 1.5MPa by reacting kettle inner pressure, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 30s;
Step 1, the KOH that is 45% by concentration and the mixture of NaOH are filled with in reactor, then, by being placed in part basket with the hollow blade of alumina based ceramic core, then reactor are sealed;
Step 3, is down to 2.0MPa by reacting kettle inner pressure, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 10s;
Claims (9)
1. a method that removes alumina based ceramic core, is characterized in that, specifically according to following steps, implements:
Step 1, by be placed in the reactor that is filled with alkali lye with the hollow blade of alumina based ceramic core, then seals reactor;
Step 2, by high temperature high pressure enclosed environment, heats reactor, alkali lye is penetrated in all spaces with the hollow blade of alumina based ceramic core, and corrosion reaction 10～30min occurs;
Step 3, is down to reacting kettle inner pressure below the saturated vapour pressure of alkali lye, makes alkali lye boiling rolling enter the passage of hollow blade, and this process continues 10～30s;
Step 4, recovers reacting kettle inner pressure, makes alkali lye stop boiling, and recovers stable state;
Step 5 is removed remaining alkali lye and the residual core of pottery removing from hollow blade, finally utilizes acid to neutralize alkali lye residual on hollow blade, with clear water, cleans and obtains hollow blade.
2. the method that removes alumina based ceramic core according to claim 1, is characterized in that, in step 1, alkali lye is that concentration is 40%～60% KOH, NaOH or both mixed solutions.
3. the method that removes alumina based ceramic core according to claim 1, is characterized in that, in step 2, temperature is controlled at 150 ℃～350 ℃, and pressure is controlled at 0.5～5MPa.
4. the method that removes alumina based ceramic core according to claim 1, is characterized in that, step 5 repeats step 2～4 more than 2 times, until alumina based ceramic core removes completely before implementing.
5. the method that removes alumina based ceramic core according to claim 1, is characterized in that, the acid in step 5 is that concentration is 3%～5% hydrochloric acid.
6. according to the arbitrary described special equipment that removes alumina based ceramic core of claim 1～5, it is characterized in that, comprise autoclave (1), in described autoclave (1), be provided with reactor (3), between described reactor (3) and autoclave (1), be provided with calandria (5), described autoclave (1) is provided with high pressure kettle cover (2) above, thermocouple (6) enters in reactor (3) through high pressure kettle cover (2), described thermocouple (6) is connected with temperature control instrument (7), Pressure gauge (8) passes cooling device (11) by pipeline and high pressure kettle cover (2) is communicated with reactor (3), the pipeline of Pressure gauge (8) is provided with relief valve (9) and safety valve (10), in described reactor (3), be provided with part basket (4).
7. the special equipment that removes alumina based ceramic core according to claim 6, is characterized in that, described high pressure kettle cover (2) is connected with autoclave (1) by fastening bolt (12).
8. the special equipment that removes alumina based ceramic core according to claim 6, is characterized in that, described autoclave (1) inside upper part is provided with boss, and described part basket (4) is connected on described boss.
9. the special equipment that removes alumina based ceramic core according to claim 6; it is characterized in that; the outer protective casing that is provided with of described thermocouple (6), described reactor (3), high pressure kettle cover (2) and described protective casing adopt corrosion and heat resistant nickel-base high-temperature alloy material to be prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007414.7A CN103752810B (en) | 2014-01-07 | 2014-01-07 | A kind of method and special equipment thereof that removes alumina based ceramic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007414.7A CN103752810B (en) | 2014-01-07 | 2014-01-07 | A kind of method and special equipment thereof that removes alumina based ceramic core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103752810A true CN103752810A (en) | 2014-04-30 |
| CN103752810B CN103752810B (en) | 2016-05-11 |
Family
ID=50520214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007414.7A Active CN103752810B (en) | 2014-01-07 | 2014-01-07 | A kind of method and special equipment thereof that removes alumina based ceramic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103752810B (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325120A (en) * | 2014-10-29 | 2015-02-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for removing ceramic shell of monocrystalline blade |
| CN104368801A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for removing ceramic core of hollow blade of turbine of aircraft engine |
| CN105618721A (en) * | 2014-12-26 | 2016-06-01 | 沈阳铸造研究所 | Core removal device and core removal method for alumina ceramic core |
| CN105945263A (en) * | 2016-05-09 | 2016-09-21 | 广东富行洗涤剂科技有限公司 | Alkaline shell mold removing agent |
| CN106111909A (en) * | 2016-06-23 | 2016-11-16 | 上海交通大学 | The ultrasonic high-efficiency removing means of ceramic core and method |
| CN106583695A (en) * | 2015-10-14 | 2017-04-26 | 沈阳铸造研究所 | High-temperature high-pressure core-removing device and core-removing method for alumina-based ceramic core |
| CN107127323A (en) * | 2017-06-13 | 2017-09-05 | 西安交通大学 | A kind of method and apparatus for improving ceramic core depoling efficiency |
| CN107350457A (en) * | 2017-06-13 | 2017-11-17 | 西安交通大学 | A kind of high-efficiency cleaning depoling equipment towards hollow turbine vane |
| CN107855503A (en) * | 2017-10-31 | 2018-03-30 | 西安交通大学 | A kind of depoling equipment that alumina based ceramic core removing speed is improved by airflow stirring |
| CN107866550A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of ceramic core removal methods of aero-engine hollow blade |
| CN107962173A (en) * | 2017-11-30 | 2018-04-27 | 江苏隆达超合金航材有限公司 | For removing the device of ceramic core or face coat in waste leaf piece |
| CN108057849A (en) * | 2017-11-06 | 2018-05-22 | 江苏大学 | The removal methods and equipment of ceramic core in a kind of aviation hollow blade |
| CN110328341A (en) * | 2019-08-09 | 2019-10-15 | 兴化市兴东铸钢有限公司 | A kind of silicon-base ceramic core removal methods |
| CN111558705A (en) * | 2020-05-20 | 2020-08-21 | 无锡卡仕精密科技有限公司 | Method for removing ceramic core with silicon dioxide content of more than 90 percent |
| CN111992695A (en) * | 2020-07-13 | 2020-11-27 | 中国科学院金属研究所 | Method for removing ceramic shell of single crystal high-temperature alloy blade |
| CN112191829A (en) * | 2020-10-10 | 2021-01-08 | 中国航发北京航空材料研究院 | Core removing kettle and method for precisely casting hollow blade core |
| CN112427625A (en) * | 2020-11-12 | 2021-03-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for removing ceramic core for blade with integral casting cover plate structure |
| CN112439875A (en) * | 2020-10-28 | 2021-03-05 | 北京航空材料研究院有限公司 | Depoling equipment and depoling method of water-soluble wax core |
| CN114378282A (en) * | 2021-12-01 | 2022-04-22 | 北京航空材料研究院股份有限公司 | Device and method for removing shell and core of titanium-aluminum intermetallic compound casting |
| CN115561390A (en) * | 2022-10-13 | 2023-01-03 | 中国航发北京航空材料研究院 | Method for detecting residual core of hollow turbine blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1211824A (en) * | 1968-07-18 | 1970-11-11 | Trw Inc | Improvements in or relating to the removal of siliceous cores from castings |
| US5332023A (en) * | 1992-05-08 | 1994-07-26 | Rolls-Royce Plc | Leaching of ceramic materials |
| US20040003909A1 (en) * | 2002-04-11 | 2004-01-08 | Schlienger Max Eric | Method and apparatus for removing ceramic material from cast components |
| WO2011017641A1 (en) * | 2009-08-06 | 2011-02-10 | Rolls-Royce Corporation | Systems and methods for leaching a material from an object |
| CN102974767A (en) * | 2012-12-17 | 2013-03-20 | 中国科学院金属研究所 | Composite efficient ceramic core demolding process and special equipment thereof |
| CN103252477A (en) * | 2012-02-15 | 2013-08-21 | 中国科学院金属研究所 | Efficient ceramic core removal device for hollow blade |
-
2014
- 2014-01-07 CN CN201410007414.7A patent/CN103752810B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1211824A (en) * | 1968-07-18 | 1970-11-11 | Trw Inc | Improvements in or relating to the removal of siliceous cores from castings |
| US5332023A (en) * | 1992-05-08 | 1994-07-26 | Rolls-Royce Plc | Leaching of ceramic materials |
| US20040003909A1 (en) * | 2002-04-11 | 2004-01-08 | Schlienger Max Eric | Method and apparatus for removing ceramic material from cast components |
| WO2011017641A1 (en) * | 2009-08-06 | 2011-02-10 | Rolls-Royce Corporation | Systems and methods for leaching a material from an object |
| CN103252477A (en) * | 2012-02-15 | 2013-08-21 | 中国科学院金属研究所 | Efficient ceramic core removal device for hollow blade |
| CN102974767A (en) * | 2012-12-17 | 2013-03-20 | 中国科学院金属研究所 | Composite efficient ceramic core demolding process and special equipment thereof |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325120A (en) * | 2014-10-29 | 2015-02-04 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for removing ceramic shell of monocrystalline blade |
| CN104368801A (en) * | 2014-11-07 | 2015-02-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for removing ceramic core of hollow blade of turbine of aircraft engine |
| CN104368801B (en) * | 2014-11-07 | 2016-03-16 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of aero-turbine ceramic core for hollow vane depoling method |
| CN105618721B (en) * | 2014-12-26 | 2018-03-23 | 沈阳铸造研究所有限公司 | The core-removing device and depoling method of a kind of alumina ceramic core |
| CN105618721A (en) * | 2014-12-26 | 2016-06-01 | 沈阳铸造研究所 | Core removal device and core removal method for alumina ceramic core |
| CN106583695A (en) * | 2015-10-14 | 2017-04-26 | 沈阳铸造研究所 | High-temperature high-pressure core-removing device and core-removing method for alumina-based ceramic core |
| CN106583695B (en) * | 2015-10-14 | 2018-10-02 | 沈阳铸造研究所有限公司 | A kind of alumina based ceramic core high temperature and pressure core-removing device and depoling method |
| CN105945263A (en) * | 2016-05-09 | 2016-09-21 | 广东富行洗涤剂科技有限公司 | Alkaline shell mold removing agent |
| CN105945263B (en) * | 2016-05-09 | 2018-12-04 | 广东富行洗涤剂科技有限公司 | It is a kind of alkaline except shell mold agent |
| CN106111909A (en) * | 2016-06-23 | 2016-11-16 | 上海交通大学 | The ultrasonic high-efficiency removing means of ceramic core and method |
| CN107127323A (en) * | 2017-06-13 | 2017-09-05 | 西安交通大学 | A kind of method and apparatus for improving ceramic core depoling efficiency |
| CN107350457A (en) * | 2017-06-13 | 2017-11-17 | 西安交通大学 | A kind of high-efficiency cleaning depoling equipment towards hollow turbine vane |
| CN107350457B (en) * | 2017-06-13 | 2019-03-01 | 西安交通大学 | A kind of high-efficiency cleaning depoling equipment towards hollow turbine vane |
| CN107855503A (en) * | 2017-10-31 | 2018-03-30 | 西安交通大学 | A kind of depoling equipment that alumina based ceramic core removing speed is improved by airflow stirring |
| CN108057849A (en) * | 2017-11-06 | 2018-05-22 | 江苏大学 | The removal methods and equipment of ceramic core in a kind of aviation hollow blade |
| CN107962173A (en) * | 2017-11-30 | 2018-04-27 | 江苏隆达超合金航材有限公司 | For removing the device of ceramic core or face coat in waste leaf piece |
| CN107866550A (en) * | 2017-12-21 | 2018-04-03 | 西安欧中材料科技有限公司 | A kind of ceramic core removal methods of aero-engine hollow blade |
| CN110328341A (en) * | 2019-08-09 | 2019-10-15 | 兴化市兴东铸钢有限公司 | A kind of silicon-base ceramic core removal methods |
| CN111558705A (en) * | 2020-05-20 | 2020-08-21 | 无锡卡仕精密科技有限公司 | Method for removing ceramic core with silicon dioxide content of more than 90 percent |
| CN111992695A (en) * | 2020-07-13 | 2020-11-27 | 中国科学院金属研究所 | Method for removing ceramic shell of single crystal high-temperature alloy blade |
| CN111992695B (en) * | 2020-07-13 | 2022-05-31 | 中国科学院金属研究所 | Method for removing ceramic shell of single crystal high-temperature alloy blade |
| CN112191829A (en) * | 2020-10-10 | 2021-01-08 | 中国航发北京航空材料研究院 | Core removing kettle and method for precisely casting hollow blade core |
| CN112439875A (en) * | 2020-10-28 | 2021-03-05 | 北京航空材料研究院有限公司 | Depoling equipment and depoling method of water-soluble wax core |
| CN112427625A (en) * | 2020-11-12 | 2021-03-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for removing ceramic core for blade with integral casting cover plate structure |
| CN114378282A (en) * | 2021-12-01 | 2022-04-22 | 北京航空材料研究院股份有限公司 | Device and method for removing shell and core of titanium-aluminum intermetallic compound casting |
| CN115561390A (en) * | 2022-10-13 | 2023-01-03 | 中国航发北京航空材料研究院 | Method for detecting residual core of hollow turbine blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103752810B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103752810B (en) | A kind of method and special equipment thereof that removes alumina based ceramic core | |
| CN102974767B (en) | Composite efficient ceramic core demolding process and special equipment thereof | |
| CN103252477B (en) | Efficient ceramic core removal device for hollow blade | |
| CN104368801B (en) | A kind of aero-turbine ceramic core for hollow vane depoling method | |
| FI3175461T3 (en) | Chemical process for primary system material passivation during hot functional testing of nuclear power plants | |
| US8828214B2 (en) | System, method, and apparatus for leaching cast components | |
| CN102962007A (en) | Pressure-controllable high-pressure hydration reaction device | |
| CN103738909A (en) | Working substance filling and recycling device and method for organic Rankine cycle waste heat generator set | |
| CN102698977A (en) | Vacuum cleaning device | |
| CN105618721B (en) | The core-removing device and depoling method of a kind of alumina ceramic core | |
| CN103523842B (en) | Deaerator exhaust steam recovery device and recovery process | |
| CN205844301U (en) | A kind of purifying molten metal experimental provision | |
| CN104325120A (en) | Method for removing ceramic shell of monocrystalline blade | |
| CN111390143B (en) | Normal-pressure removal method for ceramic core in titanium alloy casting of aircraft engine | |
| CN104596829A (en) | Secondary defect detection solution and method for silicon wafer | |
| CN107127323B (en) | A kind of method and apparatus that ceramic core depoling efficiency can be improved | |
| CN202542235U (en) | Conduction oil system | |
| CN110328341A (en) | A kind of silicon-base ceramic core removal methods | |
| CN203273271U (en) | Condensate water removing device of steam heating equipment | |
| CN201507917U (en) | Exhaust recovery device of deaerator | |
| CN108057849A (en) | The removal methods and equipment of ceramic core in a kind of aviation hollow blade | |
| CN213556968U (en) | Intelligent electric heating equipment special for safe and environment-friendly chemical industry | |
| CN108889925A (en) | A kind of directional solidification blade alumina type core depoling agent and depoling method | |
| CN103014708A (en) | Single crystal blade surface grain etching method | |
| CN217246785U (en) | Evaporation pot for concentrating sedum speckle-removing tablet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170504 Address after: 710018 Xi'an economic and Technological Development Zone, Fengcheng, No., No. two road, No. 45 Co-patentee after: XI'AN JUNENG EQUIPMENT TECHNOLOGY CO.,LTD. Patentee after: XI'AN SINO-EURO MATERIALS TECHNOLOGIES Co.,Ltd. Address before: 710018 Xi'an economic and Technological Development Zone, Fengcheng, No., No. two road, No. 45 Patentee before: XI'AN SINO-EURO MATERIALS TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191126 Address after: 710018 No. two, No. 45, Fengcheng economic and Technological Development Zone, Shaanxi, Xi'an Patentee after: XI'AN SINO-EURO MATERIALS TECHNOLOGIES Co.,Ltd. Address before: 710018 No. two, No. 45, Fengcheng economic and Technological Development Zone, Shaanxi, Xi'an Co-patentee before: XI'AN JUNENG EQUIPMENT TECHNOLOGY CO.,LTD. Patentee before: XI'AN SINO-EURO MATERIALS TECHNOLOGIES Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710018 No. 45, Fengcheng Second Road, Xi'an Economic and Technological Development Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Ouzhong Materials Technology Co.,Ltd. Country or region after: China Address before: No.45, Fengcheng 2nd Road, economic and Technological Development Zone, Xi'an, Shaanxi 710018 Patentee before: XI'AN SINO-EURO MATERIALS TECHNOLOGIES Co.,Ltd. Country or region before: China |