CN215296878U - Processing apparatus behind single crystal superalloy hollow blade macroscopic corrosion - Google Patents
Processing apparatus behind single crystal superalloy hollow blade macroscopic corrosion Download PDFInfo
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- CN215296878U CN215296878U CN202121477271.8U CN202121477271U CN215296878U CN 215296878 U CN215296878 U CN 215296878U CN 202121477271 U CN202121477271 U CN 202121477271U CN 215296878 U CN215296878 U CN 215296878U
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Abstract
The utility model relates to a processing apparatus after hollow blade macroscopical corruption of single crystal superalloy, the device adopt high-pressure draught to sweep the blade inner chamber with certain angle in box airtight space, make the corruption raffinate atomizing in the blind chamber of U type of hollow blade to flow under the air current drives, wash through high-pressure rivers again, repeated atomization operation can get rid of the corrosive liquid in the blind chamber of hollow blade U type of single crystal completely. The device can also remove corrosion products on the surface of the blade, and the surface of the blade does not need to be cleaned one by using a hairbrush, so that the working efficiency is improved. The sealing device can protect operators and avoid sucking harmful corrosive liquid.
Description
Technical Field
The utility model relates to a processing apparatus behind single crystal superalloy hollow blade macroscopical corruption belongs to the preparation technical field of gas turbine engine single crystal superalloy blade.
Background
The nickel-based single crystal superalloy has high endurance strength and creep property at high temperature, sufficient toughness, good thermal fatigue resistance and mechanical fatigue resistance, good oxidation resistance, thermal corrosion resistance and other excellent high-temperature properties, so that the single crystal superalloy is a key material for manufacturing advanced aeroengines and gas turbine blades at present, and single crystal superalloy turbine blades are widely applied to advanced military and civil aeroengines. The gas turbine blade has strict working conditions, and is very complicated in stress, temperature and environmental conditions, so that the quality requirement of the gas turbine blade is very strict. The single crystal high temperature alloy blade can form defects such as small angle crystal boundary, large angle crystal boundary, mixed crystal, freckle and the like in the casting process, and recrystallization defects formed in the heat treatment process. The formation of these defects destroys the single crystal integrity of the single crystal superalloy blade, degrading the performance of the single crystal blade and even rendering it useless. In order for an inspector to accurately pick out defects of the single crystal superalloy blade, the defects must be etched down by a developing etchant before inspection. The corrosive agent adopts a hydrogen peroxide and hydrochloric acid corrosion process or an iron chloride and hydrochloric acid corrosion process. After the corrosion is finished, corrosive liquid in the inner cavity of the blade is not easy to pour out, and neutralizing liquid is not easy to enter, so that the corrosive liquid can be remained in the inner cavity of the blade for a long time, the surface of the inner cavity of the blade can be corroded for a long time, and the surface quality of the inner cavity of the blade is seriously reduced.
Disclosure of Invention
The utility model discloses just to the problem that exists among the above-mentioned prior art and design and provide a processing apparatus behind single crystal superalloy hollow blade macroscopical corrosion, its purpose is with the blade inner chamber sanitization.
The purpose of the utility model is realized through the following technical scheme:
the processing device for the monocrystalline high-temperature alloy hollow blade after low-power corrosion is characterized in that: the device includes a box 1, 1 upper portion of box is apron 2, process two holes on the preceding curb plate of box 1 as the handle hole 3 of inserting the hand, from the extroversion through going into two pipelines in the box 1, be oral siphon 6 respectively, compressed air pipeline 7, these two pipelines get into and converge and spray through nozzle 8 behind the box 1, drain pipe 9 is installed on the bottom plate of box 1, box 1 is equipped with four supporting legs 10 all around, the universal wheel 11 is installed to the lower extreme of every supporting leg 10 moves the position when conveniently washing.
Further, the box body 1 is made of corrosion-resistant plastics.
Further, the cover plate (2) is made of transparent plastic materials.
Further, the front side plate of the box body 1 can be opened through the rotating shaft 4 on one side to conveniently put in and take out the blade, and the edge of the other side is provided with a handle 5.
Further, the number of the nozzles 8 is three.
Further, the water inlet line 6 and the compressed air line 7 are controlled in flow rate by valves, and the operation of the valves controls a foot switch 12 provided on the ground below the cabinet 1.
The device is in box airtight space, adopts high-pressure draught to sweep the blade inner chamber with certain angle, makes the corruption raffinate atomizing in the blind chamber of U type of hollow blade to flow under the air current drives, and the rethread water washes, and repeated atomization is operated, can get rid of the corrosive liquid in the blind chamber of hollow blade U type of single crystal completely, improves the blade quality, increases the blade reliability of being on active service.
The device can also remove corrosion products on the surface of the blade, and the surface of the blade does not need to be cleaned one by using a hairbrush, so that the working efficiency is improved. The closed device can protect operators and avoid sucking harmful corrosive liquid; meanwhile, the device can also be used as a cleaning tool before final blade inspection, and can be used for cleaning liquid, fluorescent liquid, sand, abrasive and other foreign matters in the inner cavity of the blade.
Drawings
FIG. 1 is a schematic structural view of the device of the present invention
Detailed Description
The technical scheme of the invention is further detailed in the following by combining the drawings and the embodiment:
referring to the attached figure 1, the processing device after the low corrosion of the single crystal high temperature alloy hollow blade comprises a box body 1 made of corrosion resistant plastics, a cover plate 2 is arranged at the upper part of the box body 1, the cover plate 2 is made of transparent plastic materials, two holes are processed on the front side plate of the box body 1 to be used as operation holes 3 for inserting hands, the front side plate of the box body 1 can be opened through a rotating shaft 4 at one side to conveniently put in and take out the blade, a handle 5 is arranged at the edge of the other side, two pipelines are led in the box body 1 from the outside, namely a water inlet pipeline 6 and a compressed air pipeline 7 respectively, the two pipelines are converged after entering the box body 1 and are sprayed through three nozzles 8, the water inlet pipeline 6 and the compressed air pipeline 7 control the flow through valves, a foot switch 12 is arranged on the ground below the box body 1 through the action control of the valves, a water outlet pipe 9 is arranged on the bottom plate of the box body 1, four supporting legs 10 are arranged around the box body 1, and universal wheels 11 are installed at the lower ends of the supporting legs 10 to facilitate moving positions during washing.
In the embodiment, a DD15 single crystal superalloy blade sample is taken as an example, the blade is of a double-wall cold structure, the structure is very complex, a U-shaped core blind cavity structure exists in a blade back and a blade basin, and the blade is not easy to flow out after entering liquid. Adopt washing unit handles, the step as follows:
the method comprises the following steps: corrosion of blade
The casting is placed in a corrosion basket, the casting is prevented from being overlapped, collided and scratched when the casting is placed, and the corrosion basket is placed in a corrosion groove. And (3) measuring hydrochloric acid by using a beaker, slowly pouring the hydrochloric acid into the corrosion tank along the wall of the corrosion tank, wherein the pouring amount is preferably enough to submerge the casting. The volume of hydrochloric acid poured was recorded, as 10: 1, measuring hydrogen peroxide according to the volume ratio, and uniformly adding the hydrogen peroxide along the liquid level.
And when the corrosive liquid reacts to generate a large amount of bubbles, the recrystallization or the dendritic crystal on the surface of the casting is clearly revealed, and the macroscopic corrosion is considered to be finished. Pouring water directly into the corrosion tank to cool the casting, and then quickly putting the cooled casting in the corrosion basket into running water to wash. And (4) soaking the corroded casting in the neutralization solution for 2-3 minutes, and then washing the casting clean by running water.
Step two: cleaning after corrosion of blades
A long-sleeve latex glove is arranged, the front side plate of the box body 1 is opened, and a basket of corroded single crystal hollow blades is put in; after closing, a hand is inserted into the operation hole 3, each blade is taken up in sequence, the two foot switches 12 are stepped, water and compressed air are introduced together, the surfaces of the blades are aligned to the nozzle 8 and washed at an angle of 45 degrees, and corrosion products on the surfaces of the blades are removed; treading down the ventilation foot switch, aligning the ventilation hole of the blade tenon with the nozzle 8 at an angle of 45 degrees, and blowing out the corrosive liquid in the blind cavity of the blade by adopting high-pressure airflow; treading a water-through pedal switch, aligning the blade tenon vent hole with the nozzle 8 at an angle of 45 degrees, and flushing the inner cavity of the blade by adopting water flow; repeating the operation, blowing out residual liquid in the blind cavity of the blade, and starting the next blade operation; washing all the blades and taking out the blades. The cleaned DD15 single crystal high temperature alloy blade sample piece has a clean surface, corrosion products on the surface are completely removed, the blade is shaken, the inner cavity of the blade is checked, and no residual liquid flows out of the inner cavity.
Claims (6)
1. A processing apparatus after single crystal superalloy hollow blade macroscopic corrosion, characterized by: the device includes a box (1), box (1) upper portion is apron (2), process two holes as handle hole (3) of inserting hand on the preceding curb plate of box (1), through going into two pipelines in the outside box (1), be oral siphon way (6) respectively, compressed air pipeline (7), these two pipelines get into and converge and spray through nozzle (8) behind box (1), install on the bottom plate of box (1) drain pipe (9), box (1) is equipped with four supporting legs (10) all around, universal wheel (11) are installed to the lower extreme of every supporting leg (10) in order to move the position when conveniently washing.
2. The apparatus of claim 1, wherein the apparatus is configured to perform post-macro-erosion treatment on a single crystal superalloy hollow blade: the box body (1) is made of corrosion-resistant plastics.
3. The apparatus of claim 1, wherein the apparatus is configured to perform post-macro-erosion treatment on a single crystal superalloy hollow blade: the cover plate (2) is made of transparent plastic materials.
4. The apparatus of claim 1, wherein the apparatus is configured to perform post-macro-erosion treatment on a single crystal superalloy hollow blade: the front side plate of the box body (1) can be opened through the rotating shaft (4) on one side to conveniently put in and take out the blade, and the edge of the other side is provided with a handle (5).
5. The apparatus of claim 1, wherein the apparatus is configured to perform post-macro-erosion treatment on a single crystal superalloy hollow blade: the number of the nozzles (8) is three.
6. The apparatus of claim 1, wherein the apparatus is configured to perform post-macro-erosion treatment on a single crystal superalloy hollow blade: the water inlet pipeline (6) and the compressed air pipeline (7) control the flow through valves, and the action of the valves controls a foot switch (12) to be arranged on the ground below the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477271.8U CN215296878U (en) | 2021-06-30 | 2021-06-30 | Processing apparatus behind single crystal superalloy hollow blade macroscopic corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477271.8U CN215296878U (en) | 2021-06-30 | 2021-06-30 | Processing apparatus behind single crystal superalloy hollow blade macroscopic corrosion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544631A (en) * | 2022-02-25 | 2022-05-27 | 中国航发北京航空材料研究院 | Method for evaluating recrystallization formation tendency of turbulence column of single crystal high-temperature alloy hollow blade |
-
2021
- 2021-06-30 CN CN202121477271.8U patent/CN215296878U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544631A (en) * | 2022-02-25 | 2022-05-27 | 中国航发北京航空材料研究院 | Method for evaluating recrystallization formation tendency of turbulence column of single crystal high-temperature alloy hollow blade |
| CN114544631B (en) * | 2022-02-25 | 2023-03-14 | 中国航发北京航空材料研究院 | Method for evaluating recrystallization formation tendency of turbulence column of single crystal high-temperature alloy hollow blade |
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