Classifications

• • 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
  • G01N3/60—Investigating resistance of materials, e.g. refractory materials, to rapid heat changes
• • 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
• • 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

Definitions

• the present invention relates to a liquid tank type thermal shock test apparatus, and more particularly to a liquid tank type thermal shock test apparatus for testing durability, strength, etc. due to thermal shock of parts such as small precision machines or electronic parts. It is. book
• Parts such as precision instruments and electronic parts are subjected to thermal shock tests in order to confirm their durability against thermal effects in addition to their general tests.
• a test method is adopted in which the test sample is alternately moved between a liquid bath that exhibits a liquid state at a low temperature and a high-temperature liquid bath and is immersed in this. Yes.
• FIG. 9 is a front view showing a schematic structure of a conventional liquid tank type thermal shock test apparatus as disclosed in, for example, Japanese Patent Publication No. Sho 6 0-2 6 3 8 3 6
• the liquid tank type thermal shock test device 69 has a low temperature tank 15 and a high temperature tank 16 in a parallel state through a heat insulating layer 17 below the box-shaped device main body 14. Yes.
• a low temperature liquid 21 is stored inside the low temperature tank 15, and a high temperature liquid 2 2 is stored inside the high temperature tank 16.
• the upper part of the low-temperature tank 15 is open, but an open / close lid 70 is attached to make it sealed.
• an open / close lid 73 is similarly attached to the upper surface of the high-temperature tank 16.
• a sample basket 3 1 in which the sample is stored. It is location.
• the sample basket 3 1 is attached to the lower surface of the temporary lid 7 1.
• a movable plate 74 is disposed above the temporary lid 71, and the movable plate 74 is moved downward by a predetermined length by the first lifting cylinder 75a and the first lifting cylinder 75b located above the movable lid 74. It is configured to be movable.
• the center of the temporary lid 71 is configured to connect the piston port of the second lifting cylinder 76 fixed to the movable platen 4.
• the sample basket 31 can be moved further downward by the action of the second elevating cylinder 76.
• Base 7 2 is configured to move horizontally along support frame 7 7 arranged in the horizontal direction Has been.
• FIG. 10 is a schematic view showing a state in which the sample basket 31 is lowered into the low temperature tank 15 from the state of FIG.
• the first elevating cylinder 75a and the first elevating cylinder 75b are activated, and the temporary lid 71 and the movable plate 74 are lowered.
• the lowered temporary lid 7 1 closes the open surface of the upper surface of the low-temperature tank 15 and seals the inside of the low-temperature tank 15.
• the second lifting cylinder 76 is further driven to lower the sample basket 31.
• the lowered sample basket 3 1 is immersed in the low temperature liquid 21 stored in the low temperature tank 15 and maintained in a low temperature state.
• the second lifting cylinder 76, the first lifting cylinder 75a, and the first lifting cylinder 75b are driven to return to the state shown in FIG.
• the open / close lid 73 is opened, and the sample basket 31 moves in the horizontal direction and is positioned above the high-temperature bath 16.
• the open / close lid 3 1 is closed and the inside of the low-temperature chamber 15 is sealed.
• the sample basket 31 is lowered and stored in the high-temperature chamber 16 as shown in FIG. Immerse in the hot liquid 2 2 stored. This keeps the sample at a high temperature.
• the sample basket 31 is taken out from the high temperature bath 16 and moved further in the horizontal direction to return to the state shown in FIG.
• a desired thermal shock test of the sample is performed by repeating such a cycle a predetermined number of times according to the sample.
• an object of the present invention is to provide a liquid tank type thermal shock test apparatus that is less consumed due to liquid diffusion and is suitable for a long-term test. Disclosure of the invention.
• a liquid tank type thermal shock test apparatus is a liquid tank type thermal shock test apparatus, comprising: a low temperature tank having a low temperature first bath liquid; A high-temperature tank adjacent to the low-temperature tank and holding a second bath liquid higher in temperature than the first bath liquid, and the upper part of the low-temperature tank and the high-temperature tank are hermetically sealed, and an opening is formed on the upper surface thereof.
• a lid drive mechanism that is movable in the vertical direction, and the hermetic lid is almost hermetically sealed, below the hermetic lid
• a horizontal drive mechanism that allows the sample basket located in the horizontal movement between the low temperature side position above the low temperature tank and the high temperature side position above the high temperature tank, and a horizontal drive mechanism, to hold the sample basket It is provided with a vertical drive mechanism that is movable in the vertical direction between the low temperature side position and the position in the low temperature tank and between the high temperature side position and the position in the high temperature tank.
• the sample basket moves between the low temperature chamber and the high temperature chamber in the sealed box.
• the liquid tank type thermal shock test apparatus is the structure of the invention according to the first aspect, wherein the box, the low temperature tank, and the high temperature tank are housed in a substantially box-shaped apparatus main body.
• the inside of the device is divided into a test area inside the box and a carry-in area outside the box, and the pressure in the carry-in area is set higher than the pressure in the test area.
• a liquid tank type thermal shock test apparatus that responds to the completion of movement of the sealing lid to the first position in the configuration of the invention in the second aspect, and Is supplied with dehumidified compressed air.
• the liquid tank type thermal shock test apparatus according to any one of the first to third aspects of the invention, wherein the sealing lid has an inspection window through which the inside can be visually confirmed. Is formed.
• liquid tank type thermal shock test apparatus according to any one of the first aspect to the fourth aspect, wherein:
• the high temperature bath is partitioned by a heat insulating layer, and the upper surface of the heat insulating layer between the low temperature bath and the high temperature bath is inclined so as to descend toward the low temperature bath.
• each of the bath liquid which fell on the inclined surface of a heat insulation layer will flow into a low-temperature tank.
• a liquid tank type thermal shock test apparatus is, in the configuration of the invention according to any one of the first aspect to the fifth aspect, attached in a box and above a high temperature tank. And a recovery device for recovering the second bath liquid from the generated steam.
• the liquid tank type thermal shock test apparatus is the first bath liquid because the sample basket moves between the low temperature tank and the high temperature tank in the sealed box. And consumption by diffusion of the second bath liquid is reduced. As a result, it is advantageous in terms of cost, and it becomes easy to manage each bath solution, so that it is suitable for a long-term test.
• the gas in the test area is less likely to diffuse into the carry-in area.
• the vapors vaporized from the first bath liquid and the second bath liquid are less likely to leak into the carry-in area, and consumption of each bath liquid is further reduced.
• the liquid tank type thermal shock test apparatus in the third aspect of the present invention has an extremely low humidity inside the box, so that the freezing phenomenon in the low temperature tank is prevented. Reliability is improved.
• the liquid tank type thermal shock test apparatus covers the opening of the box body. Even inside the box, the inside of the box can be seen. Usability is further improved.
• the liquid tank type thermal shock test apparatus provides a bath that has fallen on the inclined surface of the heat insulating layer. Since each liquid flows into the low temperature bath, the recovery efficiency of each bath liquid is further improved.
• the liquid bath type thermal shock test apparatus is capable of recovering the vapor of the second bath liquid from the collector. Therefore, the second bath liquid can be efficiently recovered from the vapor diffusing above the high-temperature tank in the test area. In this case, since the test area is smaller than the volume of the entire box, the vapor diffusion density is high. Therefore, the collection efficiency by the collector is improved compared to the conventional device.
• FIG. 1 is a front view showing a schematic configuration of a liquid tank type thermal shock test apparatus according to a first embodiment of the present invention.
• FIG. 2 is a side view showing a schematic configuration of the test apparatus shown in FIG. 1.
• FIG. 3 is a plan view showing a schematic configuration of the test apparatus shown in FIG.
• FIG. 4 is a schematic diagram showing a control flow relating to the management of the bath liquid of the test apparatus shown in FIG.
• FIG. 5 is a diagram corresponding to FIG. 1 and showing the state of the first stage of the test process.
• FIG. 6 is a view corresponding to FIG. 5 and showing the state of the second stage of the test process.
• FIG. 7 is a view corresponding to FIG. 6 and showing the state of the third stage of the test process.
• FIG. 8 is a diagram corresponding to FIG. 5 and showing the final stage of the test process.
• FIG. 9 is a view showing a schematic structure of a conventional liquid tank type thermal shock test apparatus.
• FIG. 10 is a view corresponding to FIG. 9 and shows the state of the first stage of the test process.
• FIG. 1 is a front view showing a schematic structure of a liquid tank type thermal shock test apparatus according to a first embodiment of the present invention
• FIG. 2 is a schematic side view of the test apparatus shown in FIG. Fig. 3 is a schematic plan view of the test apparatus shown in Fig. 1. o
• the liquid tank type thermal shock test apparatus 13 is mainly composed of a rectangular parallelepiped apparatus main body 14 whose outer shape is substantially a sealed structure.
• a low temperature tank 1 5 holding a low temperature liquid 2 1 as a first bath liquid and a high temperature tank 16 holding a high temperature liquid 2 2 as a second bath liquid are in parallel.
• the surrounding area is filled and partitioned by a heat insulating layer 17.
• a cooling coil 19 is installed on the side wall of the low-temperature tank 15, and 20 is installed at the bottom of the high-temperature tank 16.
• the low temperature liquid 2 1 and the high temperature liquid 2 2 use the same fluorine-based inert liquid (for example, the trade name Galden).
• the low temperature liquid 21 and the high temperature liquid 2 2 are not necessarily the same liquid, but different liquids may be used. However, if this is the same solution as in this embodiment It is preferable because there is no need to worry about a change in viscosity or an increase in consumption due to mixing of the low temperature liquid and the high temperature liquid during the test.
• An airtight box 2 5 is installed above the low temperature tank 1 5 and the high temperature tank 1 6, and the test area 2 3 inside thereof is sealed against the carry-in area 2 8 outside the box 2 5. It is installed to become.
• the upper surface of the box 25 has an opening 26, and a shielding lid 2 7a and a shielding lid 27 b for closing the opening 26 outside the test are attached. Therefore, as will be described later, when the opening 26 is sealed by the sealing lid 37, the test area 23 inside the box 25 is the inside of the low temperature tank 15 and the high temperature tank 16. Including this, the carry-in area 28 outside the box 25 is kept sealed.
• a recovery device 29a to a recovery device 29c are attached to the side wall surface of the box 25 and above the high temperature tank 16, and this function will be described later.
• the upper surface of the heat insulating layer 17 between the low temperature tank 15 and the high temperature tank 16 is an inclined surface 24 that is inclined so as to descend toward the low temperature tank 15. The effect of the inclined surface 24 will also be described later.
• a sealing lid 3 7 is installed in the space inside the apparatus main body 14 and above the box 2 5.
• the size of the sealing lid 37 in plan view is set to a size that can completely close the opening 26 of the box 25.
• a vertical plate 3 8 is connected to the back side of the hermetic lid 3 7, and the vertical plate 3 8 is engaged with the lid driving mechanism 41 via a connecting body 48.
• the sealing lid 37 has a rectangular inspection window 49 on the front panel 43 side.
• a pair of guides 4 5 a and 4 5 b extending in the left-right direction are attached to the center of the sealing lid 3 7.
• a fixed plate 3 4 is attached so as to span the guide 45a and guide 45b.
• the back side of the fixed plate 3 4 is engaged with a horizontal drive mechanism 39 attached to the hermetic lid 37 via a connecting body 47. In this way, by driving the horizontal drive mechanism 39, the fixed plate 34 is configured to be movable in the left-right direction via the connection body 47.
• a bellows 4 6 a is attached to the right side, and a bellows 4 6 b is attached to the left side of the fixed plate 3 4.
• Each of the bellows 4 6 a and the bellows 4 6 b is configured to be able to expand and contract with the movement of the fixing plate 3 4 to the left and right, and the sealing lid 3 in any of the expanded and contracted states. It is comprised so that the airtightness between the upper direction of 7 and the downward direction may not be inhibited.
• a vertical drive mechanism 3 2 is attached to the upper surface of the fixed plate 34, and the piston rod 3 3 is fixed to the upper surface of the sample basket 3 1.
• a cable tube 35 is attached so as to be slidable up and down with respect to the fixed plate 34, and its lower end is connected to the sample basket 31. Accordingly, when the vertical drive mechanism 3 2 is driven, the sample basket 3 1 can be lowered with respect to the sealing lid 3 7.
• FIG. 4 is a schematic diagram showing a control flow for managing the bath liquid used in the test apparatus shown in FIG.
• a temperature sensor 6 3 for detecting the temperature of the bath liquid is installed inside the low temperature tank 15.
• the pump 62 is driven based on the detection result of the temperature sensor 63, and the low temperature liquid 21 is circulated through the heat exchanger 61.
• the cryogenic liquid 21 in the cryogenic tank 15 is maintained at a desired temperature by the action of the cooling coil 19 and the heat exchanger 61 located in the cryogenic tank 15.
• the temperature of the high-temperature liquid 2 2 contained in the high-temperature tank 1 6 is also increased.
• a temperature sensor 6 6 for detection is attached.
• the temperature of the hot liquid 22 is controlled by a heater 20 installed in the hot bath 16.
• the pump 65 is driven based on the detection result of the temperature sensor 66, and the high temperature liquid 22 is circulated through the heat exchanger 64.
• the high temperature liquid 22 can be quickly lowered from a high temperature state to a normal temperature state by the action of the heat exchanger 64.
• a predetermined bath solution is supplied from the outside (A) to the reservoir chamber 5 1 included in the liquid tank type thermal shock test equipment 1 3 and arranged outside the equipment body 1 4. Fill.
• the liquid level of the bath liquid inside the liquid level sensor 5 4 included in the liquid tank type thermal shock test equipment 1 3 and installed in the auxiliary tank 5 3 placed outside the equipment body 1 4 When it is detected that the liquid level is below a predetermined level, the pump 52 is driven based on this detection signal. As a result, the bath liquid filled in the reserve tank 51 is put into the auxiliary tank 53.
• the low temperature tank 15 and the high temperature tank 1 6 are also provided with a liquid level sensor 5 6 and a liquid level sensor 5 8 for detecting the liquid levels of the low temperature liquid 21 and the high temperature liquid 22 respectively. ing.
• the detection valve changes the solenoid valve 5 7 from the closed state to the open state and fills the auxiliary tank 5 3.
• the bath solution is put into the cryogenic tank 1 5.
• the solenoid valve 5 9 is opened by the detection signal, and the auxiliary tank 5 3 is filled.
• the bath solution is in the hot bath 1 6 It is thrown.
• the liquid level of the low temperature liquid 21 and the high temperature liquid 2 2 in the low temperature tank 15 and high temperature tank 16 can be set to a desired level simply by replenishing the bath liquid from the outside (A). Will be maintained.
• the high temperature liquid 2 2 overflowed from the high temperature tank 16 is configured to flow into the reserve tank 51 through the fill liquid 68 for removing moisture and foreign matter.
• the condensate from the vapor of the high-temperature liquid 22 collected by the collector 29 located in the box 25 flows into the reservoir 51 via the filter 68. Is configured to do.
• the bath liquid dropped on the inclined surface 24 between the low temperature tank 15 and the high temperature tank 16 is collected in the low temperature tank 15 by the inclination.
• the amount and temperature of the bath liquid are controlled in this manner, the consumption due to diffusion of the bath liquid is extremely reduced.
• the bath liquid held in the low temperature tank 15 or the high temperature tank 16 decreases during the test, the bath liquid is automatically supplied. Therefore, as long as a sufficient amount of bath solution is placed in the reservoir at the start of the test, it is possible to continue the test for a long time without running out of bath solution in the test area.
• the door 4 4 For the test, first open the door 4 4 attached to the front panel 4 3 of the main body 14 as shown in FIG. Place the sample basket 31 containing the sample to be tested in this state on a frame (not shown) attached to the lower end of the piston rod 3 3.
• the door 4 4 is closed and the operation start is instructed via a control panel (not shown).
• the shielding lid 27a and the shielding lid 27b are first moved from the closed state to the open state from the state shown in FIGS. 1 and 2, and then the lid driving mechanism 4 1 is driven and the sealing lid 3 7 is lowered.
• the sample basket 31 located below the hermetic lid 37 also descends simultaneously.
• FIG. 5 is a diagram corresponding to FIG. 1 and is a schematic diagram showing a state where the lowering of the sealing lid 37 is completed.
• the sealing lid 37 lowered by the driving of the eaves driving mechanism 41 is brought into contact with the upper surface of the box 25 so as to close the opening 26 of the box 25.
• a packing (not shown) is installed on the entire outer periphery of the sealing lid 37, and this packing comes into contact with the upper surface of the box body 25 to maintain the sealed state by the sealing lid 37.
• the sample basket 31 is positioned above the high-temperature bath 16.
• the compressed air dehumidified at 75 ° C. is supplied to the carry-in area 28 from an opening (not shown).
• the pressure of the compressed air that is, the pressure in the carry-in area 28 is set to be larger than the pressure in the box, that is, the pressure of the vapor of the high-temperature liquid 22.
• the specific gravity of the steam is larger than that of air, the steam in the test area 23 hardly diffuses outside the box 25 due to these synergistic effects. Further, even when the sealing lid 37 is raised after the test is completed, the vapor of the bath liquid in the box 25 is difficult to leak.
• FIG. 6 is a view corresponding to FIG. 5 and shows a state in which the sample basket 31 has completed the upward movement of the cryogenic bath 15.
• the sample basket 3 1 is moved to the upper side of the low temperature chamber 15 by the driving of the horizontal drive mechanism 39.
• the vertical drive mechanism 3 2 is not driven. Therefore, the upper and lower positions of the sample basket 31 are the same as before the movement, and there is no obstacle to the horizontal movement.
• the sealing state of the sealing lid 37 is maintained by changing the length of each of the bellows 4 6a and bellows 4 6b. ing.
• the vertical driving mechanism 3 2 is driven, and the sample basket 3 1 is lowered into the low temperature chamber 15.
• FIG. 7 is a view corresponding to FIG. 6 and shows a state in which the sample basket 31 is lowered to the inside of the cryogenic bath 15.
• the piston rod 3 3 extends downward and the sample basket 3 1 descends. Then, the sample basket 31 is immersed in the low-temperature liquid 21 stored in the low-temperature tank 15 so that the sample is maintained at a low temperature. At this time, since the cable tube 35 is fixed to the sample basket 31, it moves downward from the fixing plate 34. Even in this case, the upper end of the cable pipe 35 is configured to be positioned above the fixed plate 34. As a result, cables connected to the sample in the sample basket 3 1 via the cable tube 3 5 will be affected if there is a margin in the length in the carry-in area 28. The test can be performed without any problems.
• the vertical drive mechanism 32 When the state in which the sample basket 31 is immersed in the low-temperature liquid 21 elapses for a predetermined time, the vertical drive mechanism 32 is driven to raise the sample basket 31 and return to the state shown in FIG. Then, the horizontal drive mechanism 39 is driven, and the sample basket 31 moves in the horizontal direction and returns to the state shown in FIG. At this time, a part of the low temperature liquid 21 attached to the sample basket 31 is dropped, but the bath liquid dropped on the inclined surface 24 is collected on the low temperature tank 15 side. The sample basket 31 returned to the state shown in FIG. 5 is further lowered by the vertical drive mechanism 32 being driven.
• FIG. 8 is a view corresponding to FIG. 5 and is a schematic view showing a state in which the lowered sample basket 31 is stored in the high temperature bath 16.
• the lowered sample basket 3 1 is immersed in the hot liquid 2 2 in the hot bath 1 6 It is pickled and kept at a high temperature. — Even in this state, the upper end of the cable tube 35 is located above the fixed plate 34, so it does not affect the cape connected to the sample.
• the vertical drive mechanism 3 2 is driven to raise the sample basket 3 1. Along with this rise, a large amount of vapor generated from the high temperature liquid 22 is condensed by the recovery unit 29 and recovered as a condensate.
• the raising of the sample basket 31 is completed, the state shown in Fig. 5 is restored.
• the impact test is completed by repeating the states shown in Figs. 5 to 8 a predetermined number of times according to the test contents.
• the reliability of the device is further improved because the state of the sample basket 31 immersed in the low-temperature liquid 21 or the high-temperature liquid 22 can be directly checked.
• the state shown in FIG. 5 is obtained.
• the lid driving mechanism 41 is driven in this state, the sealing lid 37 is raised and returns to the state shown in FIGS. By opening the door 4 4, the sample basket 3 1 can be taken out and the test result can be confirmed.
• the main body of the apparatus has a sealed structure, but it does not necessarily have a sealed structure, and there is no need to supply compressed air to the carry-in area. Instead of this, another inert gas may be supplied.
• the inspection window is provided on the sealing lid, but the inspection window is not necessarily required.
• the upper surface of the heat insulating layer between the low temperature bath and the high temperature bath is an inclined surface, but it may be a horizontal plane.
• three collection devices are provided in the box, but the number is not limited to this, and the collection devices themselves may not be provided.
• each drive mechanism is premised on a cylinder structure, but the same effect can be obtained with other drive mechanisms.
• the liquid tank type thermal shock test apparatus is suitable for a thermal shock test for confirming durability and strength against thermal effects of parts such as small precision machines and electronic parts. Yes.

Landscapes

• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth 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)
• Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37073606

Family Applications (1)

Country Status (5)

Cited By (3)

Families Citing this family (13)

Citations (3)

Family Cites Families (3)

• 2005
  • 2005-04-05 JP JP2005108123A patent/JP3898210B2/ja not_active Expired - Fee Related
• 2006
  • 2006-03-29 KR KR1020077018496A patent/KR100916580B1/ko not_active IP Right Cessation
  • 2006-03-29 CN CN2006800049064A patent/CN101120241B/zh not_active Expired - Fee Related
  • 2006-03-29 WO PCT/JP2006/307181 patent/WO2006107070A1/ja active Application Filing
  • 2006-03-30 TW TW095111093A patent/TW200643413A/zh not_active IP Right Cessation

Patent Citations (3)

Also Published As

Similar Documents

Legal Events