CN220579364U - Surface treatment tool for annular workpiece comb teeth - Google Patents
Surface treatment tool for annular workpiece comb teeth Download PDFInfo
- Publication number
- CN220579364U CN220579364U CN202322012391.6U CN202322012391U CN220579364U CN 220579364 U CN220579364 U CN 220579364U CN 202322012391 U CN202322012391 U CN 202322012391U CN 220579364 U CN220579364 U CN 220579364U
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- China
- Prior art keywords
- surface treatment
- workpiece
- bottom plate
- comb teeth
- annular
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- 238000004381 surface treatment Methods 0.000 title claims abstract description 36
- 244000126211 Hericium coralloides Species 0.000 claims abstract description 16
- 125000004122 cyclic group Chemical group 0.000 claims 3
- 238000000576 coating method Methods 0.000 abstract description 32
- 239000011248 coating agent Substances 0.000 abstract description 31
- 239000002344 surface layer Substances 0.000 abstract description 27
- 239000004576 sand Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 21
- 238000007664 blowing Methods 0.000 abstract description 19
- 238000005507 spraying Methods 0.000 abstract description 18
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 16
- 239000007921 spray Substances 0.000 description 13
- 238000007750 plasma spraying Methods 0.000 description 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 238000007751 thermal spraying Methods 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000007788 roughening Methods 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The utility model provides a surface treatment tool for a ring-shaped workpiece comb tooth, which comprises a bottom plate, a cover plate and a supporting block, wherein the bottom plate is fixedly connected with the cover plate, the bottom plate and the cover plate are used for clamping the ring-shaped workpiece, the comb tooth fixedly connected with the surface of the ring-shaped workpiece extends out of the bottom plate or the cover plate, the supporting block is fixedly connected with the cover plate, and the supporting block is used for supporting a reference test piece. By adopting the technical scheme of the utility model, when the surface treatment such as sand blowing and spraying is carried out on the annular workpiece, the reference test piece and the supporting block can be fixedly connected, in the process of carrying out the surface treatment on the workpiece, an operator can compare the size elements of the surface layer of the workpiece with the corresponding size elements on the surface layer of the reference test piece at any time, and the corresponding size elements on the surface layer of the reference test piece are used as references, so that the whole process accurate monitoring of the surface treatment process of the workpiece is realized, the conditions of overhigh or overlow thickness of the coating and overhigh or overlow roughness of sand blowing are avoided, the qualification rate of parts is improved, and the resource waste is reduced.
Description
Technical Field
The utility model relates to the field of surface treatment process equipment, in particular to a surface treatment tool for a ring-shaped workpiece comb tooth.
Background
At present, when parts are processed and molded by a mechanical enterprise, the surfaces of the parts are often required to be sprayed so as to improve the service performance of finished parts, and when the parts are sprayed, different coating materials are required to be selected due to different materials, shapes or structures of the parts, and Al is required to be sprayed 2 O 3 As the surface coating is coated on the surface of a part, the wear resistance of the surface of the part can be obviously improved, and a common large-size annular workpiece (1) on an aeroengine is provided, as shown in figure 1, the peripheral side surfaces of the workpiece are fixedly connected with a plurality of comb teeth (2), and in order to improve the wear resistance of the surface of the comb teeth (2), al needs to be sprayed on the surface of the comb teeth (2) 2 O 3 Coatings, however, due to Al 2 O 3 The coating has poor adhesiveness, in the prior art, the surface of a workpiece is often required to be sprayed with a basal layer firstly and then sprayed with Al 2 O 3 Coating to improve Al 2 O 3 The bonding of the coating to the workpiece substrate material.
For example, publication No.: patent document CN105316618B discloses a process method for plasma spraying an alumina coating with high bonding strength, which comprises the following steps: cleaning and roughening the surface of the coating part of the Ni alloy material part matrix; preheating the Ni alloy material part matrix subjected to the cleaning roughening treatment; spray coating Ni 5 An Al bottom layer: the current is 500-530A, argon and hydrogen are used as plasma working gases, wherein the flow of the argon is 40-50 standardThe standard liter minute, the hydrogen flow is 4-6 standard liter minute, the distance between the spray nozzle of the spray gun (6) and the spraying surface is 100-130mm, and the powder feeding speed is 30-40g/min; spraying Al 2 O 3 -3TiO 2 Surface layer: the current is 600-630A, argon and hydrogen are used as plasma working gases, wherein the flow rate of the argon is 38-40 standard liter min, the flow rate of the hydrogen is 12-14 standard liter min, the distance between the nozzle of the spray gun (6) and the spraying surface is 90-100mm, and the powder feeding rate is 16-25g/min. By adopting the technical proposal of the patent document, ni is firstly sprayed on the surface of the workpiece by adopting a plasma thermal spraying process 5 Al is sprayed with Al 2 O 3 -3TiO 2 The surface layer adopts reasonable technological parameters, and enhances Al 2 O 3 -3TiO 2 The bonding strength of the surface layer; as another example, publication No.: patent literature of CN111250368A discloses a preparation process of a polyphenyl ester sealing coating for aeroengine casing parts, which comprises the following steps: preparing before spraying, cleaning and degreasing, drying, blowing sand protection by using a high-temperature-resistant adhesive tape, blowing sand by using corundum sand, plasma spraying a bottom layer, plasma spraying a surface layer, cleaning parts and the like. The technology firstly carries out sand blasting roughening on the surface of a workpiece, then carries out plasma spraying on a bottom layer, and then carries out plasma spraying on a surface layer, thereby improving the bonding strength of the surface layer coating.
However, the prior art focuses on solving the problem of the bonding strength of the surface coating and neglects the thickness of the coating, different technological parameters are selected in the plasma thermal spraying process, the thickness of the coating is different, and in the spraying process, the coating thickness is difficult to accurately control only depending on related equipment, in addition, in the prior art, the workpiece is generally sprayed firstly, after the whole spraying technological process is finished, the thickness of the coating on the surface of the workpiece is checked, the thickness of the coating is not too high or too low, if the thickness of the coating does not reach the standard, the whole workpiece can only be abandoned, a great amount of resources are wasted, and Al is sprayed on the surface of the comb teeth (2) of the annular workpiece (1) 2 O 3 Because the external dimension of the comb teeth (2) is extremely small, the thickness of the comb teeth (2) is extremely thin, al 2 O 3 The thickness of the coating is generally 0.08-0.25mm, and the primer can be Ni 5 The thickness of the Al primer is preferably 0.07-0.12mm, and the external dimension is small due to the extremely thin thickness of the comb teeth (2), so that the thickness of the coating is difficult to control accurately.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a surface treatment tool for annular workpiece comb teeth.
The utility model is realized by the following technical scheme.
The utility model provides a surface treatment tool for ring-shaped workpiece comb teeth, which comprises a bottom plate, a cover plate and a supporting block, wherein the bottom plate is fixedly connected with the cover plate, the bottom plate and the cover plate are used for clamping a ring-shaped workpiece, the comb teeth fixedly connected with the surface of the ring-shaped workpiece extend out of the bottom plate or the cover plate, the supporting block is fixedly connected with the cover plate, and the supporting block is used for supporting a reference test piece.
The surface treatment fixture for the annular workpiece comb teeth further comprises a locating pin, one end of the locating pin is fixedly connected with the bottom plate, and the other end of the locating pin is sleeved in the locating hole.
The whole bottom plate is annular.
The cover plate is also fixedly connected with a plurality of lifting rings.
The cover plate is annular as a whole.
The number of the comb teeth is multiple, the number of the supporting blocks is equal to that of the comb teeth, the comb teeth and the supporting blocks are uniformly arranged along the periphery of the annular workpiece 1 in an array mode, and the supporting blocks correspond to the comb teeth one by one.
The whole supporting block is L-shaped.
The number of the comb teeth is 6.
The utility model has the beneficial effects that: by adopting the technical scheme of the utility model, when the surface treatment such as sand blowing and spraying is carried out on the annular workpiece, the reference test piece and the supporting block can be fixedly connected, in the process of carrying out the surface treatment on the workpiece, an operator can compare the size elements of the surface layer of the workpiece with the corresponding size elements on the surface layer of the reference test piece at any time, and the corresponding size elements on the surface layer of the reference test piece are used as references, so that the whole process of accurately monitoring the surface treatment process of the workpiece is realized, the excessive high or low thickness of the coating and the excessive high or low roughness of the sand blowing are avoided, the thickness of the finally obtained surface coating of the workpiece completely meets the technical requirements, the qualification rate of parts is improved, and the condition of resource waste is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an annular workpiece and a grate of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a schematic view of the structure of the plasma sprayed substrate layer of the present utility model;
FIG. 5 is a schematic view of the structure of the plasma sprayed wear surface layer of the present utility model;
FIG. 6 is a schematic view of the structure of the utility model when the grate is subjected to sand blasting.
In the figure: the device comprises a 1-annular workpiece, a 2-comb tooth, a 4-first reference test piece, a 5-second reference test piece, a 6-spray gun, a 7-bottom plate, an 8-cover plate, a 9-supporting block, a 10-sand blowing gun, 11-positioning pins and 12-lifting rings.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 2 to 3, the utility model provides a surface treatment fixture for ring-shaped workpiece comb teeth, which comprises a bottom plate 7, a cover plate 8 and a supporting block 9, wherein the bottom plate 7 is fixedly connected with the cover plate 8, the bottom plate 7 and the cover plate 8 are used for clamping the ring-shaped workpiece 1, the comb teeth 2 fixedly connected with the surface of the ring-shaped workpiece 1 extend out of the bottom plate 7 or the cover plate 8, the supporting block 9 is fixedly connected with the cover plate 8, and the supporting block 9 is used for supporting a reference test piece. The reference test piece serves as a reference for the surface treatment of the annular workpiece.
By adopting the technical scheme of the utility model, when the surface treatment such as sand blowing and spraying is carried out on the annular workpiece, the reference test piece and the supporting block can be fixedly connected, in the process of carrying out the surface treatment on the workpiece, an operator can compare the size elements of the surface layer of the workpiece with the corresponding size elements on the surface layer of the reference test piece at any time, and the corresponding size elements on the surface layer of the reference test piece are used as references, so that the whole process of accurately monitoring the surface treatment process of the workpiece is realized, the excessive high or low thickness of the coating and the excessive high or low roughness of the sand blowing are avoided, the thickness of the finally obtained surface coating of the workpiece completely meets the technical requirements, the qualification rate of parts is improved, and the condition of resource waste is reduced.
Specifically, the surface of the cover plate 8 is provided with a positioning hole, the surface treatment tool for the annular workpiece comb tooth further comprises a positioning pin 11, one end of the positioning pin 11 is fixedly connected with the bottom plate 7, and the other end of the positioning pin 11 is sleeved in the positioning hole. Preferably, the bottom plate 7 is annular in shape as a whole. Therefore, when the cover plate 8 and the bottom plate 7 are assembled, the positioning pins 11 can be used for positioning, and the clamping accuracy, reliability and stability of the annular workpiece are ensured.
In addition, the cover plate 8 is also fixedly connected with a plurality of lifting rings 12. So as to facilitate lifting and transferring the whole surface treatment tool, and the cover plate 8 is preferably circular in shape as a whole. The number of the comb teeth 2 is multiple, the number of the supporting blocks 9 is equal to that of the comb teeth 2, the comb teeth 2 and the supporting blocks 9 are uniformly arranged in an array along the periphery of the annular workpiece 1, and the supporting blocks 9 are in one-to-one correspondence with the comb teeth 2. The support block 9 is generally L-shaped. Preferably the number of the grate teeth 2 is 6.
Specifically, as shown in fig. 4 to 6, when the thermal spraying is performed on the grate teeth of the annular workpiece as shown in fig. 1, the following steps may be performed:
step one: providing an annular workpiece 1, wherein the surface of the annular workpiece 1 is fixedly connected with a comb tooth 2;
step two: providing plasma thermal spraying equipment, a first reference test piece 4 and a second reference test piece 5, wherein the surface of the first reference test piece 4 is coated with a reference bottom layer, the surface of the second reference test piece 5 is coated with a reference surface layer, the plasma thermal spraying equipment comprises a spray gun 6, an annular workpiece 1 is clamped between a bottom plate 7 and a cover plate 8 by using the surface treatment tool, meanwhile, a grate 2 extends out of the bottom plate 7 or the cover plate 8, and a supporting block 9 is fixedly connected with the cover plate 8;
step three: the first reference test piece 4 is fixedly connected with the supporting block 9, plasma spraying equipment in the second step is started, the spray gun 6 is enabled to move from one side of the comb teeth 2 to the other side of the comb teeth 2 at a uniform speed, meanwhile, base coating is sprayed out of the spray gun 6, and a base layer is obtained on the surface of the comb teeth 2;
step four: measuring the thickness of the reference bottom layer in the second step and the thickness of the substrate layer in the third step respectively, comparing the thicknesses, and repeating the third step when the thickness of the substrate layer is smaller than the thickness of the reference bottom layer;
step five: fixedly connecting a second reference test piece 5 with a supporting block 9, starting a second plasma spraying device in the step, enabling a spray gun 6 to move from one side of the comb teeth 2 to the other side of the comb teeth 2 at a uniform speed, and simultaneously enabling surface coating to be sprayed out of the spray gun 6 to obtain a wear-resistant surface layer on the surface of a basal layer;
step six: and (3) measuring the thickness of the reference surface layer in the second step and the thickness of the wear-resistant surface layer in the third step respectively, comparing the thicknesses, and repeating the fifth step when the thickness of the wear-resistant surface layer is smaller than the thickness of the reference surface layer.
The surface treatment is carried out on the comb teeth of the annular workpiece by adopting the process steps, and the Ni is sprayed by adopting a plasma thermal spraying process 5 An Al bottom layer is sprayed with Al by adopting a plasma thermal spraying process 2 O 3 The surface layer effectively promotes Al 2 O 3 The bonding strength of the surface layer and the workpiece matrix material is measured in each moving period of the spray gun in the plasma thermal spraying process, namely the thickness of the coating is measured, and the thickness of the coating sprayed on the test piece is used as a standard reference.
Specifically, when the third step or the fifth step is performed, the surface treatment tool 3 is rotated at a constant speed around its own central axis. The constant speed rotation speed of the surface treatment tool 3 around the central axis of the surface treatment tool is not more than 120rpm. Therefore, the base coating or the surface coating can be uniformly sprayed and attached on the surface of the workpiece, and the spraying quality is improved.
In addition, when the third step or the fifth step is carried out, spraying is also carried outThe inclination angle between the central axis of the gun 6 and the normal to the surface of the grate 2 is less than 40 deg.. The distance between the spray gun 6 and the surface of the comb tooth 2 is not more than 190mm when the third step or the fifth step is carried out. In the third or fifth step, the spray gun 6 moves from one side of the comb 2 to the other side of the comb 2 at a constant speed along the vertical direction. In the third or fifth step, the moving speed of the spray gun 6 is not more than 18mm/s. Preferably, in the third step, the base coating is Ni 5 Al. In the fifth step, the surface layer coating is Al 2 O 3 。
Specifically, in the third step, the technological parameters of spraying the substrate layer are as follows: the output power of the plasma spraying equipment is 46kW, the main spraying gas is argon, the auxiliary spraying gas is hydrogen, the argon flow is 60NLPM, the hydrogen flow is 15NLPM, and the powder feeding amount is 45g/min.
In the fifth step, the process parameters of spraying the wear-resistant surface layer are as follows: the output power of the plasma spraying equipment is 36kW, the main spraying gas is argon, the auxiliary spraying gas is hydrogen, the argon flow is 30NLPM, the hydrogen flow is 7.5NLPM, and the powder feeding amount is 34g/min.
In addition, the surface treatment tool for the annular workpiece comb tooth further comprises the following steps of:
step 1: before the second step, the comb teeth 2 are cleaned;
step 2: before the second step, sand blowing treatment is carried out on the comb teeth 2.
And (3) in the step (1), cleaning the comb teeth (2) by adopting acetone or absolute ethyl alcohol. In the step 2, a sand blowing device is provided, the sand blowing device comprises a sand blowing gun 10, the sand blowing gun 10 moves back and forth at a constant speed between two opposite side edges of the comb teeth 2, and simultaneously sand materials are ejected through the sand blowing gun 10 to perform sand blowing treatment on the comb teeth 2. Step 1, the comb teeth 2 are cleaned, various greasy dirt and impurities attached to the surface of a workpiece are removed, and step 2, sand blasting treatment is carried out on the comb teeth 2, so that the surface of the comb teeth 2 is roughened, and Ni is caused 5 Al base layer, al 2 O 3 The surface layer is easier to be adhered on the surface of the workpiece, and Ni is added 5 Al base layer, al 2 O 3 Bonding strength between the facing layer and the workpiece matrix material.
In addition, when step 2 is performed, the sand blowing gun 10 moves reciprocally in a vertical direction at a constant speed between the upper and lower side edges of the grate 2. So as to perform uniform sand blowing treatment on the surface of the comb teeth 2, and the inclination angle between the central axis of the sand blowing gun 10 and the normal direction of the surface of the comb teeth 2 is smaller than 35 degrees when the step 2 is performed. The sand material is 60# white corundum sand grain.
Claims (8)
1. A surface treatment frock for cyclic annular work piece comb tooth, its characterized in that: including bottom plate (7), apron (8) and supporting shoe (9), bottom plate (7) link firmly with apron (8), bottom plate (7) are used for centre gripping cyclic annular work piece (1) with apron (8), and make comb tooth (2) that cyclic annular work piece (1) surface link firmly stretch out outside bottom plate (7) or apron (8), supporting shoe (9) link firmly with apron (8), supporting shoe (9) are used for supporting the benchmark test piece.
2. The surface treatment tooling for the annular workpiece comb tooth according to claim 1, wherein: the surface treatment fixture for the annular workpiece comb teeth further comprises a positioning pin (11), one end of the positioning pin (11) is fixedly connected with the bottom plate (7), and the other end of the positioning pin (11) is sleeved in the positioning hole.
3. The surface treatment fixture for the annular workpiece comb tooth according to claim 1 or 2, wherein: the whole bottom plate (7) is annular.
4. The surface treatment tooling for the annular workpiece comb tooth according to claim 2, wherein: the cover plate (8) is also fixedly connected with a plurality of lifting rings (12).
5. The surface treatment fixture for the annular workpiece comb tooth according to claim 1, 2 or 4, wherein: the cover plate (8) is annular as a whole.
6. The surface treatment tooling for the annular workpiece comb tooth according to claim 1, wherein: the number of the comb teeth (2) is multiple, the number of the supporting blocks (9) is equal to that of the comb teeth (2), the comb teeth (2) and the supporting blocks (9) are uniformly arranged along the periphery of the annular workpiece (1) in an array mode, and the supporting blocks (9) are in one-to-one correspondence with the comb teeth (2).
7. The surface treatment tooling for the annular workpiece comb tooth according to claim 1 or 6, wherein: the whole supporting block (9) is L-shaped.
8. The surface treatment tooling for the annular workpiece comb tooth according to claim 6, wherein: the number of the comb teeth (2) is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322012391.6U CN220579364U (en) | 2023-07-28 | 2023-07-28 | Surface treatment tool for annular workpiece comb teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322012391.6U CN220579364U (en) | 2023-07-28 | 2023-07-28 | Surface treatment tool for annular workpiece comb teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220579364U true CN220579364U (en) | 2024-03-12 |
Family
ID=90112350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322012391.6U Active CN220579364U (en) | 2023-07-28 | 2023-07-28 | Surface treatment tool for annular workpiece comb teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220579364U (en) |
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2023
- 2023-07-28 CN CN202322012391.6U patent/CN220579364U/en active Active
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