CN109406379B - Contact material corrosion test tool and system - Google Patents
Contact material corrosion test tool and system Download PDFInfo
- Publication number
- CN109406379B CN109406379B CN201811550805.8A CN201811550805A CN109406379B CN 109406379 B CN109406379 B CN 109406379B CN 201811550805 A CN201811550805 A CN 201811550805A CN 109406379 B CN109406379 B CN 109406379B
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- 239000000463 material Substances 0.000 title claims abstract description 87
- 238000012360 testing method Methods 0.000 title claims abstract description 78
- 238000005260 corrosion Methods 0.000 title claims abstract description 53
- 230000007797 corrosion Effects 0.000 title claims abstract description 52
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 7
- 238000002955 isolation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- Environmental & Geological Engineering (AREA)
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The embodiment of the application discloses a contact material corrosion test tool, which is provided with a first insulating clamping plate and a second insulating clamping plate, wherein the first insulating clamping plate and the second insulating clamping plate are oppositely arranged at two sides and are used for clamping a test power supply contact and a contact material sample; at least two through holes are formed in the first insulating clamping plate; the second insulating clamping plate is arranged in the same way as the first insulating clamping plate; the screw rod respectively passes through the through hole on the first insulating clamping plate and the through hole on the corresponding position of the second insulating clamping plate; tightening nuts are arranged at two ends of the screw rod; the number of the screws is the same as that of the through holes on the first insulating clamping plate; the screws are parallel. The contact material corrosion test tool disclosed by the embodiment of the application solves the technical problem that the test is difficult to carry out because no reliable and stable test tool capable of enabling the contact material to be subjected to clamping force and under high current exists at present.
Description
Technical Field
The application relates to the technical field of equipment tests, in particular to a contact material corrosion test tool and a contact material corrosion test system.
Background
In high-voltage transmission equipment, outdoor high-voltage isolating switches are completely exposed to the atmosphere, and the contact parts of the high-voltage isolating switches are easily corroded by various atmospheric pollutants in the environment, so that the service life of the isolating switches is directly influenced.
The research of the corrosion condition of the contact materials has important guiding function for the formulation of anti-corrosion measures. When the corrosion test is carried out on the contact material, in order to make the obtained data have more reference value, the actual operation working condition of the site needs to be simulated, namely the contact material is under the clamping force to simulate the stress of the actual contact, and meanwhile, the contact material is under the operation current of hundreds of amperes to thousands of amperes to simulate the actual bearing current. However, there is currently no reliable and stable test tool that can subject the contact material to both clamping forces and high currents, resulting in difficult tests.
Disclosure of Invention
The embodiment of the application provides a contact material corrosion test tool and a system, which solve the technical problem that the test is difficult to carry out because a reliable and stable test tool which enables the contact material to be subjected to clamping force and to be under high current is not available at present.
In view of the above, a first aspect of the present application provides a contact material corrosion test tool, which has a first insulating clamping plate and a second insulating clamping plate, wherein the first insulating clamping plate and the second insulating clamping plate are disposed on two opposite sides, and are used for clamping a test power supply contact and a contact material sample;
At least two through holes are formed in the first insulating clamping plate;
the second insulating clamping plate is arranged in the same way as the first insulating clamping plate;
The screw rod respectively passes through the through holes on the first insulating clamping plate and the through holes on the corresponding positions of the second insulating clamping plate; tightening nuts are arranged at two ends of the screw rod;
The number of the screws is the same as that of the through holes on the first insulating clamping plate;
The screws are parallel.
Preferably, the first insulating clamping plate is provided with three through holes, and the three through holes form an isosceles triangle in position.
Preferably, the method further comprises: an insulating support rod;
and a supporting hole matched with the insulating supporting rod is formed in the isosceles triangle on the first insulating clamping plate.
Preferably, the support hole is specifically disposed at the center of the isosceles triangle.
Preferably, the insulating support rod is specifically an insulating support rod of epoxy glass fiber reinforced plastic.
Preferably, the first insulating clamping plate specifically comprises an insulating layer and a stress layer;
the insulating layer is arranged on the inner side and opposite to the insulating layer of the second insulating clamping plate;
the stress layer is arranged on the outer side and is in contact with the tightening nut.
Preferably, the insulating layer is specifically a PVC insulator plate, and the stress layer is specifically a stainless steel sheet.
Preferably, the system further comprises a first pressure sensor and a second pressure sensor;
The first pressure sensor and the second pressure sensor are arranged between the first insulating clamping plate and the second insulating clamping plate and are parallel to the screw rod;
The contact point of the first pressure sensor and the first insulating clamping plate is a first contact point, the contact point of the second pressure sensor and the first insulating clamping plate is a second contact point, and the first contact point and the second contact point are both on the symmetry axis of the isosceles triangle and are symmetrical relative to the center of the isosceles triangle.
Preferably, the device further comprises a spring gasket;
the spring washer is disposed between the tightening nut and the first insulating clamping plate, and between the tightening nut and the second insulating clamping plate.
The second aspect of the application also provides a contact material corrosion test system comprising a test power supply and a contact material corrosion test tool as claimed in any one of the first aspects above;
The test power supply is provided with a first contact and a second contact which are in a plate shape, and the first contact, at least one contact material sample and the second contact are sequentially clamped between a first insulating clamping plate and a second insulating clamping plate of the contact material corrosion test tool.
From the above technical solutions, the embodiment of the present application has the following advantages:
In the embodiment of the application, a contact material corrosion test tool is provided, which is provided with two insulating clamping plates, namely a first insulating clamping plate and a second insulating clamping plate, wherein through holes are formed in the two insulating clamping plates, and a screw rod can penetrate through the through holes to connect the two insulating clamping plates. The distance between the two insulating clamping plates can be shortened through tightening nuts at the two ends of the screw, and the contact material sample between the two insulating clamping plates is clamped and fixed, so that the contact material sample is under the clamping force, and the stress between the moving contact and the fixed contact during closing is simulated and isolated. The two insulating clamping plates are made of insulating materials, so that the test tool can be isolated from current, the test safety is improved, the on-site corrosion system is well restored, the corrosion dynamics of the corrosion system is not affected, and the contact material corrosion test tool capable of highly reducing the real operation working condition of the contact material is provided.
Drawings
FIG. 1 is a schematic diagram of a contact material corrosion test tool according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another contact material corrosion test tool according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a contact material corrosion test system according to an embodiment of the present application;
reference numerals: the test power supply 0, the screw 1, the tightening nut 2, the insulating layer 3, the stress layer 4, the spring washer 5, the insulating support rod 6, the second contact 7, the contact material sample 8 and the first contact 9.
Detailed Description
The following description of the embodiments of the present application will be made in detail, but not necessarily all embodiments, with reference to the accompanying drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the embodiments of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in embodiments of the present application will be understood in detail by those of ordinary skill in the art.
The embodiment of the application provides a contact material corrosion test tool, which solves the technical problem that the test is difficult to carry out because no reliable and stable test tool capable of enabling the contact material to be subjected to clamping force and under high current exists at present. The embodiment of the application also provides a contact material corrosion test system.
A contact material corrosion test tool according to an embodiment of the present application will be described with reference to fig. 1 to 2.
The contacts of the isolating switch generally comprise a moving contact and a fixed contact. When the isolating switch is closed, the moving contact and the fixed contact are in close contact under the action of a clamping mechanism such as a spring, and a large clamping force exists between the moving contact and the fixed contact. In the corrosion test of the contact material, the stress condition of the contact material sample 8 will affect the corrosion test, and in order to obtain test data with more reference value, the contact material sample 8 needs to be under similar clamping force. Furthermore, it is necessary to subject the contact material sample 8 to high currents while ensuring safety.
The contact material corrosion test tool provided by the embodiment of the application comprises a first insulating clamping plate and a second insulating clamping plate. Two insulating clamping plates are arranged opposite each other, between which a contact material sample 8 is clamped, and of course also the contacts of the test power supply 0 (i.e. the first contact 9 and the second contact 7).
When the clamping between the two insulating clamping plates is realized, the screw 1 and the tightening nut 2 can be matched. In particular, the first insulating clamping plate may be provided with a through hole through which the screw 1 passes, and the second insulating clamping plate should be provided with a through hole at the same position, in conformity with the first insulating clamping plate. Thus, the screw 1 can respectively pass through the through hole on the first insulating clamping plate and the through hole on the corresponding position of the second insulating clamping plate to form a framework of the clamping structure.
Two ends of the screw rod 1 are also provided with matched tightening nuts 2, and a spring gasket 5 can be arranged between the tightening nuts 2 and the insulating clamping plates.
The number of the screws 1 should be identical to the number of the through holes on the first insulating clamping plate or the second insulating clamping plate, and in specific implementation, two screws 1 may be provided, or three or four screws 1 may be provided, as long as the number of the screws 1 is greater than or equal to two, which is possible. Of course, the number of through holes in the first insulating clamping plate or the second insulating clamping plate is matched with that of the screw rods 1.
For example, if a clamping structure of two screws 1 is provided, through holes may be provided at both sides of the first insulating clamping plate, so that the space between two parallel screws 1 after the through holes penetrate the screws 1 may be used for clamping the contact material sample 8. And for the contact material sample 8, the stress can be adjusted by the screws 1 symmetrically arranged at the two sides, so that the stress deviation is avoided, and the stress balance is realized.
Similarly, no matter what the number of through holes is provided on the first insulating clamping plate or the second insulating clamping plate, in order to ensure that the clamping force provided by the first insulating clamping plate and the second insulating clamping plate to the contact material sample 8 is opposite to the contact material sample 8 in the direction (i.e. perpendicular to the two insulating clamping plates), the through holes provided on the first insulating clamping plate or the second insulating clamping plate should form an isosceles triangle, rectangle or other symmetrical shape.
In the embodiment of the application, the clamping structure comprises three mutually parallel screws 1. Specifically, three through holes can be formed in the first insulating clamping plate, an isosceles triangle is formed in the position of the three through holes, the second insulating clamping plate and the first insulating clamping plate are arranged in the same mode, and three screws 1 penetrate through the through holes in the two insulating clamping plates to form a clamping structure. The triangular prism space formed by the three screws 1 and the two insulating clamping plates can be used for arranging the contact material sample 8, and the three screws 1 can not form obstruction to the contact material sample 8.
Further, an insulating support rod 6 may be further provided, and in an isosceles triangle formed between the through holes of the first insulating clamping plate, a support hole matching with the insulating support rod 6 is provided, and the second insulating clamping plate is also provided. In this way, during the test, the insulating support rod 6 can sequentially pass through the first insulating clamping plate, the first contact 9 of the test power supply 0, the contact material samples 8 stacked together, the second contact 7 of the test power supply 0 and the second insulating clamping plate, so that the positioning of the contact material samples 8 and the alignment between the contact material samples 8 are realized, and the contact areas between the contact material samples 8 are the same as much as possible.
It will be appreciated that, in use, the insulating support rod 6 should be provided with corresponding holes for the insulating support rod 6 to pass through, for example, the first contact 9, the second contact 7, and the contact material sample 8 of the test power supply 0.
The support hole matching the insulating support bar 6 is preferably provided at the center in the isosceles triangle, but may be provided at a non-center position in the isosceles triangle. But set up in the center, insulating bracing piece 6 sets up in the axis of clamp structure, and is more convenient when test tool and contact material sample 8 equipment, and the counterpoint effect between the contact material sample 8 is also better.
The insulating support rod 6 can be made of epoxy resin glass fiber reinforced plastic, has enough strength, and can block current, so that the current cannot pass through, and the corrosion dynamics of a corrosion system is not affected.
Further, considering that the insulating material is often not stiff enough, the first insulating clamping plate and the second insulating clamping plate are stressed greatly and are easy to damage when the screw 1 is tightened. Therefore, can set up insulating splint into bilayer structure, including insulating layer 3 and atress layer 4 two-layer, insulating layer 3 that plays the insulating effect sets up in clamping structure's inboard, and atress layer 4 that plays the transmission pressure effect sets up in the outside, with tightening nut 2 direct contact to ingenious intensity that has strengthened insulating splint under the prerequisite that does not influence insulating splint insulating properties.
Specifically, the insulating layer 3 may be a PVC insulator plate, and the stress layer 4 may be a stainless steel sheet.
Whether the clamping force to which the contact material sample 8 is subjected is positive or slightly deviated is mainly determined by visually observing the position of the tightening nut 2, and obviously, the determination by the naked eye is not accurate enough. Thus, a first pressure sensor and a second pressure sensor may be provided.
The first and second pressure sensors should be disposed between the first and second insulating clamping plates in parallel with the respective screws 1. The contact point of the first pressure sensor with the first insulating clamping plate may be referred to as a first contact point, and the contact point of the second pressure sensor with the first insulating clamping plate may be referred to as a second contact point. The first contact point and the second contact point can be both on the symmetry axis of the isosceles triangle, and the two contact points should be symmetrical relative to the center of the isosceles triangle, so that the left and right sides symmetry of the clamping force applied to the contact material sample 8 can be judged by comparing the pressure values between the first pressure sensor and the second pressure sensor.
In the embodiment of the application, a contact material corrosion test tool is provided, which is provided with two insulating clamping plates, namely a first insulating clamping plate and a second insulating clamping plate, wherein through holes are formed in the two insulating clamping plates, and a screw rod can penetrate through the through holes to connect the two insulating clamping plates. The distance between the two insulating clamping plates can be shortened through tightening nuts at the two ends of the screw, and the contact material sample between the two insulating clamping plates is clamped and fixed, so that the contact material sample is under the clamping force, and the stress between the moving contact and the fixed contact during closing is simulated and isolated. The two insulating clamping plates are made of insulating materials, so that the test tool can be isolated from current, the test safety is improved, the on-site corrosion system is well restored, the corrosion dynamics of the corrosion system is not affected, and the contact material corrosion test tool capable of highly reducing the real operation working condition of the contact material is provided.
The above is a detailed description of a contact material corrosion test tool provided by the embodiment of the present application, and in the following, with reference to fig. 3, fig. 3 is a schematic structural diagram of a contact material corrosion test system provided by the embodiment of the present application, and the description of the contact material corrosion test system provided by the embodiment of the present application is provided, where the system includes:
Test power supply 0 and any contact material corrosion test tool provided by the application.
The test power supply 0 has a first contact 9 and a second contact 7 in the form of a plate, so that the flat surfaces of the first contact 9 and the second contact 7 can be well matched with a first insulating clamping plate and a second insulating clamping plate of the corrosion test tool, so that the contact material sample 8 is more stable in clamping.
During testing, the first contact 9 of the test power supply 0, the contact material sample 8 to be tested and the second contact 7 of the test power supply 0 are sequentially clamped between the first insulating clamping plate and the second insulating clamping plate of the contact material corrosion test tool.
It should be noted that the contact material sample 8 should also be provided in a plate shape, so that the clamping effect is better.
In the embodiment of the application, a contact material corrosion test system is provided, wherein a contact material corrosion test tool is provided with two insulating clamping plates, namely a first insulating clamping plate and a second insulating clamping plate, through holes are formed in the two insulating clamping plates, and a screw rod can penetrate through the through holes to connect the two insulating clamping plates. The distance between the two insulating clamping plates can be shortened through tightening nuts at the two ends of the screw, and the contact material sample between the two insulating clamping plates is clamped and fixed, so that the contact material sample is under the clamping force, and the stress between the moving contact and the fixed contact during closing is simulated and isolated. The two insulating clamping plates are made of insulating materials, so that the test tool can be isolated from current, the test safety is improved, the on-site corrosion system is well restored, the corrosion dynamics of the corrosion system is not affected, and the contact material corrosion test tool capable of highly reducing the real operation working condition of the contact material is provided.
The terms "comprises" and "comprising," along with any variations thereof, in the description of the application and in the above-described figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (4)
1. The contact material corrosion test tool is characterized by comprising a first insulating clamping plate and a second insulating clamping plate, wherein the first insulating clamping plate and the second insulating clamping plate are oppositely arranged at two sides and used for clamping a test power supply contact and a contact material sample;
the second insulating clamping plate is arranged in the same way as the first insulating clamping plate;
The screw rod respectively passes through the through holes on the first insulating clamping plate and the through holes on the corresponding positions of the second insulating clamping plate; tightening nuts are arranged at two ends of the screw rod;
The number of the screws is the same as that of the through holes on the first insulating clamping plate;
the screws are parallel;
three through holes are formed in the first insulating clamping plate, and an isosceles triangle is formed in the position of the three through holes;
Further comprises: an insulating support rod;
A supporting hole matched with the insulating supporting rod is formed in the isosceles triangle on the first insulating clamping plate;
The supporting hole is specifically arranged in the center of the isosceles triangle;
corresponding hole sites are formed in the first contact, the second contact and the contact material samples of the test power supply, and the insulating support rod sequentially penetrates through the first insulating clamping plate, the first contact of the test power supply, the contact material samples stacked together, the second contact of the test power supply and the second insulating clamping plate, so that positioning of the contact material samples and alignment among the contact material samples are realized;
The system also comprises a first pressure sensor and a second pressure sensor;
The first pressure sensor and the second pressure sensor are arranged between the first insulating clamping plate and the second insulating clamping plate and are parallel to the screw rod;
the contact point of the first pressure sensor and the first insulating clamping plate is a first contact point, the contact point of the second pressure sensor and the first insulating clamping plate is a second contact point, and the first contact point and the second contact point are both on the symmetry axis of the isosceles triangle and are symmetrical relative to the center of the isosceles triangle;
the first insulating clamping plate and the second insulating clamping plate specifically comprise an insulating layer and a stress layer;
the insulation layers of the first insulation clamping plate and the second insulation clamping plate are arranged on the inner sides, and the insulation layer of the first insulation clamping plate is opposite to the insulation layer of the second insulation clamping plate;
The stress layers of the first insulating clamping plate and the second insulating clamping plate are arranged on the outer sides and are in contact with the tightening nut;
the insulating layer is specifically a PVC insulator plate, and the stress layer is specifically a stainless steel sheet;
The contact material sample is under the action of clamping force, and the stress between the movable contact and the fixed contact is simulated when the isolation is closed.
2. The contact material corrosion test tool of claim 1, wherein the insulated support rod is specifically an insulated support rod of epoxy glass fiber reinforced plastic.
3. The contact material corrosion test tool of claim 1, further comprising a spring washer;
the spring washer is disposed between the tightening nut and the first insulating clamping plate, and between the tightening nut and the second insulating clamping plate.
4. A contact material corrosion test system comprising a test power source and a contact material corrosion test tool according to any one of claims 1 to 3;
The test power supply is provided with a first contact and a second contact which are in a plate shape, and the first contact, a plurality of contact material samples which are laminated together and the second contact are sequentially clamped between a first insulating clamping plate and a second insulating clamping plate of the contact material corrosion test tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550805.8A CN109406379B (en) | 2018-12-18 | 2018-12-18 | Contact material corrosion test tool and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811550805.8A CN109406379B (en) | 2018-12-18 | 2018-12-18 | Contact material corrosion test tool and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109406379A CN109406379A (en) | 2019-03-01 |
| CN109406379B true CN109406379B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811550805.8A Active CN109406379B (en) | 2018-12-18 | 2018-12-18 | Contact material corrosion test tool and system |
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| CN (1) | CN109406379B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111366528B (en) * | 2020-06-01 | 2020-08-18 | 广东电网有限责任公司东莞供电局 | Salt fog corrosion testing machine of conductive paste |
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| US4606891A (en) * | 1984-06-28 | 1986-08-19 | Nl Industries, Inc. | Electrode holder useful in a corrosion testing device |
| CN203101196U (en) * | 2013-03-21 | 2013-07-31 | 西安科技大学 | Multifunctional shear strength tester |
| CN205562276U (en) * | 2016-05-06 | 2016-09-07 | 清华大学 | Developments perforation test device's test piece installation mechanism and test device |
| CN107238456A (en) * | 2017-05-17 | 2017-10-10 | 河南平高电气股份有限公司 | A kind of disconnecting switch clamping force test fixture |
| CN206930566U (en) * | 2017-07-25 | 2018-01-26 | 广东电网有限责任公司电力科学研究院 | A kind of test system for evaluating the powered military service performance of isolation switch contact material |
| CN209264528U (en) * | 2018-12-18 | 2019-08-16 | 广东电网有限责任公司 | A kind of contact material corrosion test tool and system |
-
2018
- 2018-12-18 CN CN201811550805.8A patent/CN109406379B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4606891A (en) * | 1984-06-28 | 1986-08-19 | Nl Industries, Inc. | Electrode holder useful in a corrosion testing device |
| CN203101196U (en) * | 2013-03-21 | 2013-07-31 | 西安科技大学 | Multifunctional shear strength tester |
| CN205562276U (en) * | 2016-05-06 | 2016-09-07 | 清华大学 | Developments perforation test device's test piece installation mechanism and test device |
| CN107238456A (en) * | 2017-05-17 | 2017-10-10 | 河南平高电气股份有限公司 | A kind of disconnecting switch clamping force test fixture |
| CN206930566U (en) * | 2017-07-25 | 2018-01-26 | 广东电网有限责任公司电力科学研究院 | A kind of test system for evaluating the powered military service performance of isolation switch contact material |
| CN209264528U (en) * | 2018-12-18 | 2019-08-16 | 广东电网有限责任公司 | A kind of contact material corrosion test tool and system |
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| Publication number | Publication date |
|---|---|
| CN109406379A (en) | 2019-03-01 |
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