CN115406787A - Stator nitriding detection tool and detection method thereof - Google Patents
Stator nitriding detection tool and detection method thereof Download PDFInfo
- Publication number
- CN115406787A CN115406787A CN202210984325.2A CN202210984325A CN115406787A CN 115406787 A CN115406787 A CN 115406787A CN 202210984325 A CN202210984325 A CN 202210984325A CN 115406787 A CN115406787 A CN 115406787A
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 238000005121 nitriding Methods 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 claims abstract description 64
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000004321 preservation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- -1 nitrogen ions Chemical class 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Biochemistry (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to a stator nitriding detection tool and a detection method thereof, wherein the stator nitriding detection tool comprises a pipe body, wherein the pipe body is provided with at least one opening communicated with the inside of the pipe body and at least one heat energy circulation hole, the near end of the pipe body is connected with the far end of a limiting seat, the stator nitriding detection tool also comprises at least one test block, each test block is abutted against the pipe body through the opening, and at least one pipe sleeve is movably arranged on the outer side of the pipe body and used for sealing the test block in the opening or taking out the test block. According to the invention, the plurality of openings are formed along the length direction of the tube body, the test block which is made of the same material as the stator is arranged on each opening, and the test block is taken out after nitridation and the nitridation result is detected, so that whether the hardness of each section of the tube body after nitridation in the length direction meets the nitridation requirement is judged, the requirement that the nitridation hardness does not meet the standard after mass nitridation is avoided, defective products are reduced, and the detection efficiency of an enterprise is effectively improved.
Description
Technical Field
The invention relates to the field of heat treatment process equipment, in particular to a stator nitriding detection tool and a detection method thereof.
Background
For wells with perforated intervals not exceeding 1500m, surface-driven downhole screw pumps are often used as pumping tools. The ground driving underground screw pump is characterized in that a ground driving device transmits a rotating torque to a rotor through a sucker rod string to drive the rotor to rotate so as to realize liquid discharge. The stator is a key component of the screw pump and directly influences the service life of the underground unit. The higher the stator manufacturing quality, the longer the life of the downhole assembly. The stator functions as a spiral cavity for rotor operation and liquid pumping.
At present, in order to meet the requirements of customers, the stators need to be nitrided, and because the length of the stators is very long, the situation that the hardness of two ends of each stator after nitriding reaches the standard often occurs when the stators are integrally nitrided, but the nitriding hardness of the middle part of each stator does not reach the standard occurs, so how to detect the nitriding result of the stators, and the urgent need is to relate to a detection structure capable of being used for stator nitriding.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a stator nitridation detection tool and a detection method thereof, so as to solve one or more problems in the prior art.
In order to realize the purpose, the technical scheme of the invention is as follows:
stator nitrogenize and detect frock, stator nitrogenize detects frock includes the pipe body set up on the pipe body at least one with the opening and the at least one heat energy runner hole of the inside intercommunication of pipe body, the near-end of pipe body is connected with the distal end of spacing seat, stator nitrogenize detects frock still includes at least one test piece, every the test piece passes through the opening with pipe body butt, the movably setting of at least one pipe box is in the outside of pipe body, be used for with the test piece seal in the opening or be used for taking out the test piece.
Furthermore, the test block comprises a test block body, an open slot is formed in the inner side of the test block body, and the open slot is provided with a plane for hardness detection.
Furthermore, the test block is semicircular, the outer diameter of the test block is the same as that of the pipe body, and the inner diameter of the test block is the same as that of the pipe body.
Further, the outer diameter of the limiting seat is larger than that of the pipe body.
Further, at least two fasteners are connected to the outer side of the pipe sleeve.
Furthermore, the near end of the limiting seat is connected with a mounting seat, and the mounting seat is connected with at least two lifting lugs.
Correspondingly, the invention also provides a detection method using the stator nitridation detection tool, which comprises the following steps:
exposing an opening in the tube body;
placing a test block in the opening;
sealing the test block in the pipe sleeve;
the rod body is put into the tube body;
hoisting the pipe body with the test block into a nitriding furnace for nitriding;
and detecting the hardness of the test block after the nitridation is finished.
Further, the temperature of the nitriding furnace is 400-550 ℃.
Further, the heat preservation time of the nitriding furnace is 2-30 h.
Further, before nitriding, the nitriding furnace needs to be vacuumized, the vacuumizing time is 10-15 min, and the vacuumizing pressure is 100-110 MPa.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the plurality of openings are formed along the length direction of the pipe body, the test block which is made of the same material as the stator is arranged on each opening, and the test block is taken out after nitridation and the nitridation result is detected, so that whether the hardness of each section of the pipe body after nitridation in the length direction meets the nitridation requirement is judged, the requirement that the nitridation hardness does not meet the standard after bulk nitridation is avoided, defective products are reduced, and the detection efficiency of an enterprise is effectively improved.
Drawings
Fig. 1 shows a schematic structural diagram of a stator nitridation detection tool according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating the movement of the cover plate in the stator nitridation detection tool according to the embodiment of the invention.
Fig. 3 shows a schematic structural diagram of a test block in the stator nitridation detection tool and the detection method thereof according to the embodiment of the invention.
Fig. 4 shows a schematic structural diagram of a stator nitridation detection tool and a detection method thereof according to an embodiment of the present invention, where no test block is installed.
Fig. 5 shows a schematic structural diagram of an installation test block in the stator nitridation detection tool and the detection method thereof according to the embodiment of the invention.
Fig. 6 shows a schematic diagram of the stator nitridation detection tool and the detection method thereof, wherein the stator nitridation detection tool is installed in a nitridation furnace.
In the drawings, the reference numbers: 1. a tube body; 100. an opening; 101. a thermal energy circulation hole; 2. a limiting seat; 200. a first rod body mounting hole; 3. a mounting base; 300. a second rod body mounting hole; 4. lifting lugs; 5. pipe sleeve; 500. a threaded hole; 6. a test block; 600. a test block body; 601. an open slot; 7. a fastener; 8. and (5) fixing the nitriding furnace.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following will explain the stator nitridation detection tool and the detection method thereof in detail with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, etc. shown in the drawings and attached to the description are only for understanding and reading the disclosure of the present disclosure, and are not for limiting the scope of the present disclosure, so they do not have the essential meaning in the art, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure.
In order to describe the stator nitriding detection tool more clearly, the invention defines terms "far end" and "near end", specifically, the "far end" refers to the end close to the bottom of the nitriding furnace during the nitriding process, the "near end" refers to the end far away from the bottom of the nitriding furnace during the nitriding process, and taking fig. 1 as an example, the left side of fig. 1 is the near end, and the right side of fig. 1 is the far end.
Referring to fig. 1, the stator nitriding detection tool includes a tube body, and the tube body 1 is provided with at least one opening 100 communicated with the inside of the tube body 1 and at least one heat energy circulation hole 101, specifically, in the stator nitriding detection tool of the present embodiment, the opening 100 may be provided at 1/3 of the length of the tube body 1. The length of the pipe body 1 is the same as that of a stator needing nitriding in the follow-up process, and the pipe body is made of the same material and plays a role in simulating the structure of the stator.
Further, referring to fig. 1 and 6, the proximal end of the tube body 1 is connected to the distal end of the limiting seat 2, the outer diameter of the limiting seat 2 is larger than the outer diameter of the tube body 1, and the stator nitridation detection tool can be connected and fixed to the fixed disk 8 of the nitriding furnace after being hung in the nitriding furnace by the limiting seat 2, so that the stator nitridation detection tool is prevented from being separated from the fixed disk 8 due to the fact that the outer diameter of the tube body 1 is too small.
Further, referring to fig. 1, 2 and 3, the stator nitriding detection tool further includes at least one test block 6, a material of the test block 6 is the same as a material of a stator to be nitrided, each test block 6 abuts against the pipe body 1 through the opening 100, at least one pipe sleeve 5 is movably disposed on the outer side of the pipe body 1 to seal the test block 6 in the opening 100 or to take out the test block 6, specifically, an inner diameter of the pipe sleeve 5 is larger than an outer diameter of the pipe body 1, so that the pipe sleeve 5 can be sleeved on the outer side of the pipe body 1, and the inner side of the pipe sleeve 5 is in clearance fit with the outer side of the pipe body 1, thereby enabling the pipe sleeve 5 to move along the outer side of the pipe body 1.
Further, referring to fig. 4 and 5, the pipe sleeve 5 is provided with at least two threaded holes 500, the threaded holes 500 are used for connecting the fastening members 7, the fastening members 7 and the threaded holes 500 can fix the position of the pipe sleeve 5, and force can be applied to the outer side of the testing block 6, so that the testing block 6 is abutted against the pipe body 1, and the axial movement of the testing block is avoided.
Specifically, with continuing reference to fig. 1, fig. 2 and fig. 3, the testing block 6 includes a testing block body 600, an opening groove 601 is formed in the testing block body 600, and the opening groove 601 has a flat surface for hardness testing. Preferably, in the stator nitridation detection tool according to this embodiment, the open slot 601 is preferably square. In other embodiments of the present invention, the open slot 601 may have any shape other than a square shape, such as a circle, a triangle, etc., as long as it has a flat surface for hardness detection.
Further, referring to fig. 4 and 5, the cross section of the test block 6 is semicircular, the outer diameter of the test block 6 is the same as the outer diameter of the pipe body 1, and the inner diameter of the test block 1 is the same as the inner diameter of the pipe body 1.
Further, referring to fig. 1 and fig. 2, in order to facilitate the hoisting of the stator nitridation detection tool into the nitridation furnace, the proximal end of the limiting seat 2 is connected to an installation seat 3, and the installation seat 3 is connected to at least two lifting lugs 4.
Further, please refer to fig. 6, because the pipe body 1 is relatively long, in order to avoid the middle portion of the pipe body 1 not to obtain the nitriding hardness meeting the requirement, the inside of the pipe body 1 needs to be put into the rod body, so the first rod body mounting hole 200 is opened in the inside of the limiting seat 2, the second rod body mounting hole 300 is opened in the inside of the mounting seat 3, the rod body can enter the inside of the pipe body 1 through the first rod body mounting hole 200 and the second rod body mounting hole 300, and further the nitriding of the test block 6 of each length section on the pipe body 1 is realized.
Correspondingly, the invention also provides a detection method using the stator nitridation detection tool, which is characterized by comprising the following steps of:
s1: referring to fig. 2, the openings 100 in the respective lengths of the pipe body 1 are exposed, that is, the pipe sleeve 5 corresponding to each opening 100 is moved in the axial direction, and in the example of fig. 2, the pipe sleeve 5 is moved in the axial direction to the right, so that the openings 100 are exposed.
S2: the test block 6 is put into the opening 100, the open slot 601 of the test block 6 faces the inner wall of the pipe body 1, please continue to refer to fig. 2, then the pipe sleeve 5 is moved to the left in the axial direction, so that the test block 6 is enclosed inside the pipe sleeve 5, then the position of the pipe sleeve 5 is fixed by the fastening piece 7 and the threaded hole 500, meanwhile, the fastening piece 7 is rotated to make the fastening piece 7 contact the outer side of the test block 6, and then the test block 6 is pressed to abut against the pipe body 1.
S3: a rod (not shown) is placed inside the tube body 1, and the rod 1 can be engaged with the inside of the tube body 1 to prevent the rod 1 from falling out of the tube body 1.
Of course, in other embodiments of the present invention, a threaded sleeve may be screwed on the mounting seat 3, the outer side of the threaded sleeve is screwed with the mounting seat 3, and the inner side of the threaded sleeve is connected with the rod body, which may also prevent the rod body from falling out of the pipe body.
S4: and hoisting the pipe body 1 with the test block 6 into a nitriding furnace by using a crane through the lifting lug 4 for nitriding.
Specifically, before nitriding in a nitriding furnace, vacuumizing is firstly needed, the vacuumizing time is 10-15 min, and the vacuumizing pressure is 100-110 Mpa.
The pipe body 1 is hung in a nitriding furnace and then placed on a tray of the nitriding furnace, the pipe body 1 is taken as a cathode, the furnace wall of the nitriding furnace is taken as an anode, ion nitriding is carried out through glow discharge generated between the cathode and the anode, direct current of 400-750V is introduced, ammonia gas is ionized into positive ions and electrons of nitrogen and hydrogen, glow is formed on the surface of the pipe body 1, nitrogen ions with high energy bombard the surface of the pipe body 1 at the maximum speed, kinetic energy is converted into heat energy, the surface of the pipe body 1 is heated to 400-550 ℃, the heat preservation time of the nitriding furnace is 2-30 h, and similarly, medium is needed for guiding nitriding due to heat energy conduction, so that the nitrogen ions enter the interior of the pipe body 1 and contact with a rod body through the opening of a heat energy circulation hole 101, the nitrogen ions can bombard the interior of the pipe body 1 through the guidance of the rod body, atomic sputtering is generated inside the pipe body 1 and the test block 6, and the nitrogen permeates into the surface and the interior of the pipe body 1 and the test block 6.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. Stator nitrogenize detects frock, its characterized in that: the stator nitriding detection tool comprises a tube body, wherein at least one opening and at least one heat energy circulation hole are formed in the tube body, the opening is communicated with the inside of the tube body, the near end of the tube body is connected with the far end of a limiting seat, the stator nitriding detection tool further comprises at least one test block, each test block passes through the opening and is abutted to the tube body, and at least one pipe sleeve is movably arranged on the outer side of the tube body and used for sealing the test block in the opening or taking out the test block.
2. The stator nitriding detection tool according to claim 1, characterized in that: the test block comprises a test block body, wherein an open slot is formed in the inner side of the test block body, and the open slot is provided with a plane for hardness detection.
3. The stator nitriding detection tool according to claim 1, characterized in that: the testing block is semicircular, the outer diameter of the testing block is the same as that of the pipe body, and the inner diameter of the testing block is the same as that of the pipe body.
4. The stator nitriding detection tool according to claim 1, characterized in that: the outer diameter of the limiting seat is larger than that of the pipe body.
5. The stator nitriding detection tool according to claim 1, characterized in that: at least two fasteners are connected to the outside of the sleeve.
6. The stator nitriding detection tool of claim 1, wherein: the near-end of spacing seat connects the mount pad, at least two lugs are connected to the mount pad.
7. The detection method by using the stator nitriding detection tool according to any one of claims 1 to 6, characterized by comprising the following steps:
exposing an opening in the tube body;
placing a test block in the opening;
sealing the test block in the pipe sleeve;
the rod body is put into the tube body;
hoisting the pipe body with the test block into a nitriding furnace for nitriding;
and detecting the hardness of the test block after the nitridation is finished.
8. The detection method of the stator nitriding detection tool according to claim 7, characterized in that: the temperature of the nitriding furnace is 400-550 ℃.
9. The detection method of the stator nitriding detection tool according to claim 7, characterized in that: the heat preservation time of the nitriding furnace is 2-30 h.
10. The detection method of the stator nitriding detection tool according to claim 7, characterized in that: before nitriding, the nitriding furnace needs to be vacuumized, the vacuumizing time is 10-15 min, and the vacuumizing pressure is 100-110 Mpa.
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|---|---|---|---|
| CN202210984325.2A CN115406787B (en) | 2022-08-17 | 2022-08-17 | Stator nitriding detection tool and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210984325.2A CN115406787B (en) | 2022-08-17 | 2022-08-17 | Stator nitriding detection tool and detection method thereof |
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| CN115406787B CN115406787B (en) | 2023-10-24 |
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| Title |
|---|
| 焦中庆: "42CrMo汽车转向泵齿轮离子氮化工艺", 《金属加工》, no. 23, pages 146 - 147 * |
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| Publication number | Publication date |
|---|---|
| CN115406787B (en) | 2023-10-24 |
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