CN211741009U - Simple experimental device for testing stainless steel intergranular corrosion - Google Patents
Simple experimental device for testing stainless steel intergranular corrosion Download PDFInfo
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- CN211741009U CN211741009U CN202020126226.7U CN202020126226U CN211741009U CN 211741009 U CN211741009 U CN 211741009U CN 202020126226 U CN202020126226 U CN 202020126226U CN 211741009 U CN211741009 U CN 211741009U
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Abstract
The utility model relates to a simple experimental device for stainless steel intergranular corrosion test, which relates to the technical field of intergranular corrosion test and comprises a fume hood, an operating platform, a heating device and a corrosion test container, wherein a condensation pipe is inserted at the mouth part of the corrosion test container, the condensation pipe is connected with a water outlet hose and a water inlet hose, and a hollow limiting pipe which is vertical to the inner top wall of the fume hood is arranged on the inner top wall of the fume hood; one end of the condensation pipe, which is far away from the heating device, is inserted in the limiting pipe; the top wall in the fume hood is slidably connected with a sliding block which can move along the direction vertical to the axis of the condensing pipe, and a fixing device for fixing the sliding block is arranged on the top wall in the fume hood; the sliding block is connected with a cable, the limiting pipe is provided with a connecting hole for the cable to pass through, and one end of the cable, which is far away from the sliding block, passes through the connecting hole and then is connected to the condensation pipe; the limiting pipe is provided with a channel for the water outlet hose to penetrate out along the axis direction, and the water outlet hose can move along the channel. The utility model discloses have easy operation, be convenient for dismouting condenser pipe's effect.
Description
Technical Field
The utility model belongs to the technical field of the technique of intergranular corrosion test and specifically relates to a simple and easy experimental apparatus for stainless steel intergranular corrosion test is related to.
Background
The intergranular corrosion test adopts various test solutions which can enable the corrosion potential of metal to be in a specific interval of a constant potential anodic polarization curve, and accelerates the display of intergranular corrosion by utilizing the obvious difference of corrosion current of crystal grains and crystal boundaries of the metal in the potential interval so as to know whether the chemical composition, the heat treatment and the processing technology of the material are reasonable or not. The method comprises the main steps of sample selection, sample preparation, solvent preparation, sample placement, heating and heat preservation, sample taking out, cleaning, drying and bending test.
In the heating and heat-preserving step, the solvent is always in a slightly boiling state, so that the solvent is volatilized, and in order to ensure that the concentration of the solvent is not changed, a condensing tube is often inserted above the test container to enable the gasified solvent to flow back.
There is an intercrystalline corrosion test device as disclosed in chinese patent of grant publication No. CN207964576U, including cooling water set, heating furnace and safety cabinet, the lower part of safety cabinet is equipped with the cooling water set, the upper portion of cooling water set is equipped with the baffle, the upper portion of baffle is equipped with the heating furnace, the upper portion of heating furnace is equipped with corrosion test container, corrosion test container's upper portion is equipped with the condenser pipe, the right side of condenser pipe is equipped with the water inlet, the side of water inlet is equipped with the water inlet hose, the left side of condenser pipe is equipped with the delivery port, the side of delivery port is equipped with the water outlet hose, the lower part of condenser pipe is equipped with the fixation clamp, the fixation clamp includes first dead lever, second dead lever and spacing clamp, safety cabinet's lateral wall is equipped with the limiting plate, the middle part of limiting plate is equipped with first.
The above prior art solutions have the following drawbacks: before the heating step, the corrosion test container is placed on a heating furnace, then the limiting clamp is extruded by the condensing tube, the limiting clamp extrudes the limiting block through a repulsion spring, at the moment, the limiting clamp is forced to clamp the condensing tube due to the reaction force of the limiting block, and one end of the condensing tube is inserted into the opening of the corrosion test container; when the sample is taken out, the limiting clamp needs to be loosened, the condensation pipe is detached, and then the corrosion test container is taken out. In the process, in order to take and place the corrosion test container, the condensation pipe needs to be disassembled and assembled back and forth, and the operation is inconvenient. Therefore, an intercrystalline corrosion testing device which is simple to operate and convenient for dismounting and mounting the condenser tube is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple and easy experimental apparatus for stainless steel intergranular corrosion test to the not enough of prior art existence.
The above object of the present invention can be achieved by the following technical solutions:
a simple experimental device for stainless steel intergranular corrosion testing comprises a fume hood, wherein an operation table is arranged in the fume hood, a heating device is arranged on the operation table, a corrosion test container is arranged at the upper part of the heating device, a condensation pipe is inserted into the opening part of the corrosion test container, one end, far away from the heating device, of the condensation pipe is connected with a water outlet hose, the other end of the condensation pipe is connected with a water inlet hose, and a hollow limiting pipe perpendicular to the inner top wall of the fume hood is arranged on the inner top wall of the fume hood; one end of the condensation pipe, which is far away from the heating device, is inserted into the limiting pipe; the top wall in the fume hood is slidably connected with a sliding block capable of moving along the direction vertical to the axis of the condensing tube, and a fixing device for fixing the sliding block is arranged on the top wall in the fume hood; the sliding block is connected with a cable, the limiting pipe is provided with a connecting hole for the cable to pass through, and one end of the cable, which is far away from the sliding block, passes through the connecting hole and then is connected to the condensation pipe; the limiting pipe is provided with a channel for the water outlet hose to penetrate out along the axis direction, and the water outlet hose can move along the channel.
In the original test method, when an experiment is started, a container containing a test solvent is placed on a heating device, the lower end of a condenser pipe is inserted into the opening of the container, and the condenser pipe is fixed by a clamp; after the experiment is finished, the clamp is loosened, the condenser pipe is taken down, and the container is taken out. By adopting the technical scheme, when a test is started, the container containing the test solvent is placed on the heating device, then the fixing device on the sliding block is loosened, the sliding block is moved along the direction close to the condensation pipe, and the condensation pipe descends along the vertical direction under the action of the gravity of the condensation pipe until the lower end of the condensation pipe is inserted into the opening part of the container; when the test finishes, along keeping away from condenser pipe direction removal slider, then the cable removes along with the slider, drives the condenser pipe and rises in vertical direction, then locks fixing device, makes the condenser pipe fixed, takes out the container at last. The limiting pipe is additionally arranged to limit the condensation pipe to move up and down in the vertical direction only, and the shaking of the condensation pipe in the horizontal direction is reduced. In the operation process, the condenser pipe does not need to be repeatedly disassembled and assembled, the container can be taken and placed only by sliding the sliding block, and the operation is very simple and convenient.
The utility model discloses further set up to: the top wall is equipped with the spout of dovetail along the spacing pipe axis direction of perpendicular to on the fume hood inner wall, the slider is located the spout.
Through adopting above-mentioned technical scheme, the slider removes along the spout, then the cable removes along with the slider, drives the condenser pipe and reciprocates in the vertical direction.
The utility model discloses further set up to: the fixing device comprises a plurality of fixing holes which are uniformly distributed along the length direction of the sliding groove, the fixing holes are communicated with the sliding groove, a fixing bolt is inserted on the sliding block, and the fixing bolt penetrates through the sliding block and is inserted into the fixing holes.
Through adopting above-mentioned technical scheme, fixing bolt runs through the slider, inserts the fixed orifices on the spout, fixes the slider in the spout. And the distance between the condensation pipe and the heating device can be changed by adjusting the position of the sliding block, so that the condensation pipe is suitable for containers with different heights.
The utility model discloses further set up to: and the sliding block is connected with a driving device for driving the sliding block to move along the length direction of the sliding chute.
By adopting the technical scheme, the driving device drives the sliding block to move, so that an operator does not need to manually stir the sliding block, the operation steps of the operator are reduced, the operation flow of the test is simplified, and the possibility of experiment errors caused by misoperation of the operator is reduced.
The utility model discloses further set up to: the driving device comprises a roller which is rotatably connected to the top wall in the fume hood, and the axial direction of the roller is vertical to the axial direction of the sliding chute; one end of the roller in the axial direction is provided with a driving motor for driving the roller to rotate along the circumferential direction; the connecting wire is arranged on the roller, and one end, far away from the roller, of the connecting wire is connected with the sliding block.
Through adopting above-mentioned technical scheme, when needs are with condenser pipe from container oral area separation, driving motor corotation drives the cylinder and rotates, and the cylinder drives the connecting wire and twines toward the cylinder to drive the slider and remove to a certain fixed orifices department, then pass the locating hole on the slider with fixing bolt and insert in the fixed orifices, fixed slider. In the moving process, the slider pulls the condensation pipe to rise through the cable; when the condenser pipe is required to be installed at the opening of the container, the driving motor rotates reversely to drive the roller to rotate reversely, the connecting wire wound on the roller is released, the sliding block moves towards the direction of the condenser pipe under the action of gravity of the condenser pipe, and the condenser pipe descends until the lower end part of the condenser pipe is inserted into the opening of the container.
The utility model discloses further set up to: the condensing pipe is coaxially sleeved with a lantern ring, the lantern ring is fixed on the condensing pipe, and the lantern ring is positioned between the condensing pipe and the limiting pipe; the cable is connected to the collar.
Through adopting above-mentioned technical scheme, the condenser pipe can not the spacing pipe of direct contact when taking place to rock, has reduced the friction between condenser pipe and spacing intertube, has played the effect of protection condenser pipe.
The utility model discloses further set up to: the periphery of the connecting hole is provided with a rubber gasket.
Through adopting above-mentioned technical scheme, the cable can not direct and connecting hole periphery friction when the condenser pipe reciprocates, can reduce because the continuous friction between cable and the connecting hole leads to the possibility that the cable epidermis rubs open.
The utility model discloses further set up to: the fume hood is provided with a smoke alarm above the operating table.
By adopting the technical scheme, when abnormal smoke appears in the air, the smoke alarm gives out alarm sound to remind an operator to disconnect the power supply in time and stop the test.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the test is started, firstly placing the container containing the test solvent on the heating device, then loosening the fixing device on the sliding block, moving the sliding block along the direction close to the condensation pipe, and descending the condensation pipe along the vertical direction under the action of the gravity of the condensation pipe until the lower end of the condensation pipe is inserted into the opening part of the container; when the test is finished, the sliding block is moved in the direction far away from the condensation pipe, the cable moves along with the sliding block to drive the condensation pipe to ascend in the vertical direction, then the fixing device is locked to fix the condensation pipe, and finally the container is taken out; the limiting pipe is additionally arranged to limit the condensation pipe to move up and down only in the vertical direction, and the shaking of the condensation pipe in the horizontal direction is reduced; in the operation process, the condenser pipe is not required to be repeatedly disassembled and assembled, and the container can be taken and placed only by sliding the sliding block, so that the operation is very simple and convenient;
2. the driving device is arranged to drive the sliding block to move, so that an operator does not need to manually stir the sliding block, the operation steps of the operator are reduced, the operation flow of the test is simplified, and the possibility of test errors caused by misoperation of the operator is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a simple experimental apparatus for testing stainless steel intergranular corrosion in the example;
FIG. 2 is a sectional view of a simple experimental apparatus for testing intergranular corrosion of stainless steel in the example;
FIG. 3 is a cross-sectional view of the drum, the slider, and the chute;
FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;
FIG. 5 is a cross-sectional view of the chute, slide and condenser tube;
FIG. 6 is a schematic view of the structure of the condensation duct;
fig. 7 is a partially enlarged schematic view of a portion B in fig. 6.
In the figure, 1, a fume hood; 11. a limiting pipe; 111. connecting holes; 112. a channel; 113. a rubber gasket; 12. a chute; 121. a fixing hole; 122. fixing the bolt; 13. a slider; 131. a cable; 132. positioning holes; 133. a connecting wire; 14. a drum; 141. a drive motor; 142. a support bar; 15. a transverse plate; 151. an upper cavity; 152. a lower cavity; 2. an operation table; 31. heating an electric furnace; 41. a flask; 5. a condenser tube; 51. a water outlet hose; 52. a water inlet hose; 53. a collar; 6. a smoke alarm; 71. a water tank; 711. a normally closed solenoid valve; 72. a contact water sensor; 73. an intelligent power supply; 8. a faucet; 81. a water conduit; 82. and (4) a water pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, for the utility model discloses a simple and easy experimental apparatus for stainless steel intergranular corrosion test, including the fume hood 1 of vertical cabinet formula, it has the cavity to open on the fume hood 1, is equipped with a diaphragm 15 that is on a parallel with the fume hood 1 roof in the cavity, forms the operation panel 1 that is used for carrying on test operation. The transverse plate 15 divides the cavity into an upper cavity 151 and a lower cavity 152, a rectangular operation opening communicated with the upper cavity 151 is formed in a plate body on the front surface of the fume hood 1, and the lower edge of the operation opening is flush with the transverse plate 15.
Referring to fig. 1, an electric heating furnace 31 is placed on a table 1, a conical flask 41 for containing an intercrystalline corrosion test solvent is placed on the electric heating furnace 31, and a condensation pipe 5 for condensing and refluxing the evaporated test solvent is inserted into a mouth portion of the flask 41. A water inlet is arranged at one end of the condensation pipe 5 close to the flask 41, a water inlet hose 52 is connected at the water inlet, and a water tap 8 positioned at one side of the upper cavity 151 is connected at one end of the water inlet hose 52 far away from the condensation pipe 5. During the test, the water tap 8 can continuously fill the interlayer of the condensation pipe 5 with cooling water through the water inlet hose 52.
Referring to fig. 2, a water tank 71 having a rectangular cross section and an open top is disposed on the bottom wall of the lower cavity 152 of the hood 1. One end of the condensation pipe 5 far away from the flask 41 is provided with a water outlet, and the water outlet is connected with a water outlet hose 51. The end of the water outlet hose 51 far away from the condensation pipe 5 is inserted into the water tank 71, and the water outlet hose 51 can guide the cooling water in the interlayer of the condensation pipe 5 into the water tank 71.
Referring to fig. 2, a water conduit 81 of the water tap 8 is inserted into the water tank 71 from a side wall of the water tank 71, and a water pump 82 located on a bottom wall of the water tank 71 is connected to an end of the water conduit 81 remote from the water tap 8. The water conduit 81 is provided with a normally closed electromagnetic valve 711, the normally closed electromagnetic valve 711 is connected with an intelligent power supply 73 for controlling the normally closed electromagnetic valve 711 to be opened and closed, the intelligent power supply 73 is placed on the operating platform 2, and the intelligent power supply 73 is connected with the electric heating furnace 31. A contact type water sensor 72 located on the side of the water tank 71 is placed on the inner bottom wall of the lower cavity 152, the product model of the contact type water sensor 72 is JRFW-2-18, and the contact type water sensor 72 can send instructions to the intelligent power supply 73. When the test is normally carried out, the electric heating furnace 31 is communicated with the intelligent power supply 73, the normally closed electromagnetic valve 711 is communicated with the intelligent power supply 73, and then the water can be normally electrified and supplied. When water in the water tank 71 overflows and water flows on the bottom wall of the lower cavity 152, the contact type water sensor 72 sends a power-off instruction to the intelligent power supply 73, the intelligent power supply 73 is powered off, the power supply of the electric heating furnace 31 is cut off, automatic power-off operation is completed, meanwhile, the power supply of the normally closed solenoid valve 711 is cut off, water-off operation is completed, and the test is automatically stopped.
Referring to fig. 2, a smoke alarm 6 is provided on the top wall of the upper chamber 151 above the console 2. When smoke is generated due to reasons such as dry burning of the flask 41, the smoke alarm 6 immediately gives an alarm sound to remind an operator to disconnect the power supply in time, stop the test and avoid expansion of the disaster.
Referring to fig. 2, a vertical downward hollow limiting pipe 11 is fixedly connected to the top wall of the upper cavity 151, the length of the limiting pipe 11 is half of the length of the condensation pipe 5, the inner diameter of the limiting pipe 11 is larger than the outer diameter of the condensation pipe 5, and the top end of the condensation pipe 5 is inserted into the limiting pipe 11. One side of the limiting pipe 11 is provided with a long strip-shaped channel 112 along the length direction of the limiting pipe 11, and the water outlet hose 51 passes through the channel 112, so that the condensation pipe 5 can move smoothly in the limiting pipe 11.
Referring to fig. 3 and 4, a dovetail-shaped sliding groove 12 is arranged on the top wall of the upper cavity 151 along the direction perpendicular to the axis of the limiting pipe 11, and a sliding block 13 matched with the sliding groove 12 in shape is arranged in the sliding groove 12. Two vertical support rods 142 arranged downwards are fixedly connected to the inner top wall of the upper cavity 151, a roller 14 is connected between the two support rods 142, and two ends of the roller 14 are respectively rotatably connected to the two support rods 142. The roller 14 is disposed in a horizontal direction, and an axial direction of the roller 14 is perpendicular to an axial direction of the chute 12. The slider 13 is connected with a connecting wire 133, and one end of the connecting wire 133 far away from the slider 13 is wound on the roller 14. One end of the drum 14 in the axial direction is connected with a driving motor 141 for driving the drum 14 to rotate in the circumferential direction, and the driving motor 141 is connected to the inner top wall of the upper cavity 151.
Referring to fig. 5, the slider 13 is provided with a positioning hole 132 penetrating through the slider 13, the fixing bolt 122 is inserted into the positioning hole 132, and five fixing holes 121 for inserting the fixing bolt 122 are uniformly distributed in the sliding slot 12 along the length direction of the sliding slot 12. The fixing bolt 122 is inserted into the fixing hole 121 through the positioning hole 132 of the slider 13, and fixes the slider 13 to the chute 12. And the distance between the condensation pipe 5 and the electric heating furnace 31 can be changed by adjusting the position of the sliding block 13, so that the condensation pipe 5 can adapt to containers with different heights.
Referring to fig. 5 and 6, a collar 53 is coaxially sleeved on the condensation pipe 5, and the collar 53 is fixed at the top end of the condensation pipe 5 and is located above the water outlet hose 51. The lantern ring 53 is connected with a cable 131, the limiting pipe 11 is provided with a square connecting hole 111, and one end, far away from the lantern ring 53, of the cable 131 penetrates through the connecting hole 111 and is connected to the sliding block 13. Referring to fig. 7, a rubber gasket 113 is provided around the connection hole 111. Because the condenser pipe 5 ascends and descends to drive the cable 131 to continuously rub the connecting hole 111, the rubber gasket 113 is additionally arranged, the cable 131 can be prevented from directly contacting the connecting hole 111, and the possibility that the skin of the cable 131 is worn due to continuous friction between the cable 131 and the connecting hole 111 is reduced.
The implementation principle of the embodiment is as follows: when the test is started, the driving motor 141 is reversed, the driving motor 141 drives the roller 14 to rotate reversely, the connecting wire 133 wound on the roller 14 is released, the slider 13 is moved towards the direction of the condenser pipe 5 under the action of the gravity of the condenser pipe 5, and the condenser pipe 5 descends until the lower end of the condenser pipe 5 is inserted into the mouth of the flask 41. After the test is finished, the driving motor 141 is turned on, the driving motor 141 rotates forward, the driving motor 141 drives the roller 14 to rotate, the roller 14 drives the connecting wire 133 to wind on the roller 14 and drives the slider 13 to move to a certain fixing hole 121, and then the fixing bolt 122 penetrates through the positioning hole 132 on the slider to be inserted into the fixing hole 121 to fix the slider 13. During the movement, the slider 13 pulls the condensation duct 5 up by the cable 131. In the whole operation process, repeated disassembly and assembly of the condensation pipe 5 are not needed, the container can be taken and placed only by moving the sliding block 13, and the operation is very simple and convenient.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a simple and easy experimental apparatus for corrosion test between stainless steel crystal, includes fume hood (1), be equipped with operation panel (2) in fume hood (1), be equipped with heating device on operation panel (2), heating device's upper portion is equipped with corrosion test container, corrosion test container's oral area is inserted and is equipped with condenser pipe (5), heating device one end is kept away from in condenser pipe (5) and is connected with out water hose (51), condenser pipe (5) other end is connected with into water hose (52), its characterized in that: a hollow limiting pipe (11) vertical to the inner top wall of the fume hood (1) is arranged on the inner top wall of the fume hood (1); one end of the condensation pipe (5) far away from the heating device is inserted into the limiting pipe (11); the inner top wall of the fume hood (1) is connected with a sliding block (13) which can move along the direction vertical to the axis of the condensation pipe (5) in a sliding way, and a fixing device for fixing the sliding block (13) is arranged on the inner top wall of the fume hood (1); the sliding block (13) is connected with a cable (131), the limiting pipe (11) is provided with a connecting hole (111) for the cable (131) to pass through, and one end, far away from the sliding block (13), of the cable (131) passes through the connecting hole (111) and then is connected to the condensation pipe (5); and a channel (112) for the water outlet hose (51) to penetrate through is arranged on the limiting pipe (11) along the axial direction, and the water outlet hose (51) can move along the channel (112).
2. The simple experimental device for testing stainless steel intergranular corrosion according to claim 1, characterized in that: the top wall is equipped with dovetail spout (12) along perpendicular to spacing pipe (11) axis direction on fume hood (1) interior roof, slider (13) are located spout (12).
3. The simple experimental device for testing stainless steel intergranular corrosion according to claim 2, characterized in that: the fixing device comprises a plurality of fixing holes (121) which are uniformly distributed along the length direction of the sliding chute (12), the fixing holes (121) are communicated with the sliding chute (12), a fixing bolt (122) is inserted on the sliding block (13), and the fixing bolt (122) penetrates through the sliding block (13) and is inserted into the fixing holes (121).
4. The simple experimental device for testing stainless steel intergranular corrosion according to claim 3, characterized in that: the sliding block (13) is connected with a driving device for driving the sliding block (13) to move along the length direction of the sliding chute (12).
5. The simple experimental device for testing stainless steel intergranular corrosion according to claim 4, wherein: the driving device comprises a roller (14) which is rotatably connected to the inner top wall of the fume hood (1), and the axial direction of the roller (14) is vertical to the axial direction of the sliding chute (12); one end of the roller (14) is provided with a driving motor (141) for driving the roller (14) to rotate along the circumferential direction; the roller (14) is provided with a connecting wire (133), and one end of the connecting wire (133) far away from the roller (14) is connected with the sliding block (13).
6. The simple experimental device for testing stainless steel intergranular corrosion according to claim 1, characterized in that: a lantern ring (53) is coaxially sleeved on the condensation pipe (5), the lantern ring (53) is fixed on the condensation pipe (5), and the lantern ring (53) is positioned between the condensation pipe (5) and the limiting pipe (11); the cable (131) is connected to the collar (53).
7. The simple experimental device for testing stainless steel intergranular corrosion according to claim 1, characterized in that: and a rubber gasket (113) is arranged on the periphery of the connecting hole (111).
8. The simple experimental device for testing stainless steel intergranular corrosion according to claim 1, characterized in that: and a smoke alarm (6) positioned above the operating platform (2) is arranged on the inner top wall of the fume hood (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020126226.7U CN211741009U (en) | 2020-01-19 | 2020-01-19 | Simple experimental device for testing stainless steel intergranular corrosion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020126226.7U CN211741009U (en) | 2020-01-19 | 2020-01-19 | Simple experimental device for testing stainless steel intergranular corrosion |
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| CN211741009U true CN211741009U (en) | 2020-10-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008771A (en) * | 2021-02-05 | 2021-06-22 | 宁波甬安检测技术有限公司 | Corrosion test device |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008771A (en) * | 2021-02-05 | 2021-06-22 | 宁波甬安检测技术有限公司 | Corrosion test device |
| CN113008771B (en) * | 2021-02-05 | 2024-05-14 | 宁波甬安检测技术有限公司 | Corrosion test device |
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