CN110631983A - Salt spray testing machine - Google Patents
Salt spray testing machine Download PDFInfo
- Publication number
- CN110631983A CN110631983A CN201910839310.5A CN201910839310A CN110631983A CN 110631983 A CN110631983 A CN 110631983A CN 201910839310 A CN201910839310 A CN 201910839310A CN 110631983 A CN110631983 A CN 110631983A
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- seat
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- compression
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- 238000012360 testing method Methods 0.000 title claims abstract description 128
- 150000003839 salts Chemical class 0.000 title claims abstract description 57
- 239000007921 spray Substances 0.000 title claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 58
- 238000007906 compression Methods 0.000 claims description 58
- 238000005507 spraying Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000005260 corrosion Methods 0.000 abstract description 9
- 238000012546 transfer Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000037237 body shape Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
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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
- G01N17/002—Test chambers
Abstract
A salt spray testing machine relates to a testing device for salt spray corrosion resistance of articles, and is provided with a test box and a box cover, wherein a test piece placing table and a salt spray system are arranged in the test box, a turntable is arranged in the test box, the test piece placing table is arranged on the turntable, a transmission shaft with the lower end extending out of the test box is arranged on the turntable, and a power source is connected with the transmission shaft; the test piece placing table comprises a connecting seat, a loading slideway, a loading slide block, a loading seat and a loading screw rod, wherein the loading screw rod is provided with a locking device, and the loading slide block and the loading seat are provided with sample clamps; the case lid is articulated with the proof box, and one side rear portion of proof box is articulated through the articulated shaft that uncaps has branch, and branch is connected with the case lid, is equipped with the cylinder, is equipped with link block on the piston rod of cylinder, and link block articulates there is the transfer line, and the transfer line is articulated with branch. The invention has the advantages of simple structure, convenient use, good test performance, high precision and the like.
Description
Technical Field
The invention relates to a test device for salt spray corrosion resistance of articles, in particular to a salt spray tester which has the advantages of simple structure, convenient operation, uniform contact of a test piece with salt spray and high test precision.
Background
It is known that a salt spray tester is a test box for detecting the salt spray corrosion resistance of a tested sample (test piece) by using a salt spray corrosion method, and is suitable for salt spray corrosion tests of parts, electronic components, protective layers of metal materials and industrial products.
The structure of the existing salt spray testing machine structure is provided with a test box, the upper side of the test box is provided with a box cover, a test piece placing table is arranged in the test box, a salt spray spraying system is arranged, and a spray head of the salt spray spraying system is arranged in the test box. The structure and the function of the existing salt spray testing machine are simple, and the design is not perfect enough. For example, the salt spray of the existing salt spray testing machine is not uniform enough, so that the corrosion of a test piece of the salt spray test is not uniform enough, and the test precision is influenced; the salt spray test piece needs to consider various working conditions, but the existing salt spray testing machine cannot perform a salt spray test under mechanical stress, and the obtained data has larger difference with the corrosion resistance of the test piece in a use state. Meanwhile, the salt spray tester generally has the body shape of 100cm, the width of 50cm and the height of 90cm, and the upper end cover of the salt spray tester is larger; when the salt spray testing machine is used for testing, the test piece needs to be placed and taken through opening of the upper end cover, and the angle of the opened cover is avoided as much as possible when the salt spray testing machine is used for testing, so that the testing environment is prevented from being interfered by the outside. When an operator puts and takes a test piece, the test piece needs to be operated by two hands, the end cover of the salt spray testing machine is large, manual treatment is needed by the operator, and the end cover of the salt spray testing machine is kept balanced, so that the operation is inconvenient, and the experiment efficiency is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the salt spray testing machine which is simple in structure, convenient to use, good in testing performance and high in precision.
The technical scheme adopted by the invention for solving the defects of the prior art is as follows:
a salt spray testing machine is provided with a test box, a box cover is arranged on the upper side of the test box, a test piece placing table is arranged in the test box, a salt spray spraying system is arranged, and a spraying head of the salt spray spraying system is arranged in the test box; the test piece placing table is structurally characterized in that: the test device is provided with a connecting seat, a loading slide way is arranged on the connecting seat, a loading slide block capable of sliding in the axial direction of the loading slide way is arranged on the loading slide way, a loading seat matched with the loading slide block is arranged on the connecting seat, a loading lead screw is arranged on the connecting seat, a locking device is arranged on the loading lead screw, a hand wheel is arranged at one end of the loading lead screw, and sample clamps are respectively arranged on the loading slide block and the loading seat; the rear side of the box cover is hinged to the rear side of the test box, the rear portion of one side of the test box is provided with an opening and closing seat, a supporting rod is hinged to the opening and closing seat through an opening hinge shaft coaxial with a hinge shaft of the box cover and the test box, the front end of the supporting rod is fixedly connected with the front upper portion of the box cover, one side of the test box is provided with an air cylinder, a connecting slide block is arranged on a piston rod of the air cylinder, a transmission rod is hinged to the upper side of the connecting slide block. The cylinder is a double-acting cylinder and can quickly open and close the box cover.
The turntable is arranged in the test box through a turntable bearing. A sealing device is arranged between the transmission shaft and the test box, so that salt mist is prevented from diffusing out of the test box.
The loading slide way is two guide slide rails which are arranged in parallel. The two guide slide rails are symmetrically arranged on two sides of the loading screw rod, so that the operation is more stable.
The loading seat comprises a tensile loading seat and a compressive loading seat, the tensile loading seat and the compressive loading seat are arranged in the middle of the connecting seat, the loading sliding block comprises a tensile loading sliding block and a compressive loading sliding block, and the loading lead screw comprises a tensile loading lead screw and a compressive loading lead screw. The tensile loading seat sets up in the left side of compression loading seat, and the left end portion and the right-hand member portion of connecting seat are equipped with tensile lead screw supporting seat and compression lead screw supporting seat respectively, install tensile loading lead screw on tensile lead screw supporting seat and the tensile loading seat, install compression loading lead screw on compression lead screw supporting seat and the compression loading seat, and the nut and the tensile loading slider of tensile loading lead screw are connected, the nut and the compression loading slider of compression loading lead screw are connected. The tension loading seat and the compression loading seat can be integrally formed.
The locking device is characterized in that a tensile locking screw and a compression locking screw are respectively arranged on a tensile lead screw supporting seat and a compression lead screw supporting seat, and the front ends of the tensile locking screw and the compression locking screw can respectively abut against a tensile loading lead screw and a compression loading lead screw to lock the tensile loading lead screw and the compression loading lead screw; and the rear ends of the stretching locking screw rod and the compressing locking screw rod are respectively provided with a locking handle.
The tensile loading seat and the tensile loading slide block are provided with opposite sample tensile clamps, and the structure of the sample tensile clamps is as follows: the clamp is provided with a clamp base, a clamping bolt is arranged on the clamp base, a rotating handle is arranged at the upper end of the clamping bolt, a downward pressing boss is arranged on the clamping bolt, and a clamping head capable of freely rotating is arranged on the clamping bolt below the downward pressing boss. The clamping bolt rotates to drive the downward pressing boss to move downwards, so that the clamping head can be tightly pressed on the clamping head seat. The clamping head is in a U-shaped groove shape with a downward opening, and the lower part of the U-shaped groove shape at the opposite side of the tensile loading seat and the tensile loading slide block is provided with a clamping pressure plate. The lower side of the clamping head is provided with a guide bulge, a guide groove matched with the guide bulge is arranged on the position, opposite to the guide bulge, of the clamping head seat, and the guide bulge is located in the guide groove, so that the clamping head can be prevented from rotating along with the clamping bolt. A return spring is arranged between the clamping head and the clamping head seat, so that the clamping head is more beneficial to control. The chuck seat is arranged on the tensile loading seat or the tensile loading sliding block through a bolt.
The compression loading seat and the compression loading slide block are provided with opposite sample compression clamps, and the structure of the sample compression clamp is as follows: is provided with a compression clamping seat, and a V-shaped positioning groove with an opening at the upper side is arranged on the compression clamping seat. The compression clamping seats are fixedly arranged on the compression loading seat and the compression loading sliding block through bolts, and the V-shaped positioning grooves on the two compression clamping seats matched with the compression loading seat and the compression loading sliding block are opposite. Because the cylindrical test piece radially deforms when compressed, and one side of the V-shaped groove is used for supporting, even if the cylindrical test piece radially deforms, the other side of the cylindrical test piece is not fixed, so that the center of the circle of the test piece deviates, the center of the circle of the test piece is always tangent to the V-shaped groove, and deformation is not influenced.
The loading scales are arranged on the connecting seat and the loading slideway in the axial direction. And the loading standard is matched with the tensile loading slide block and the compressive loading slide block and used for calculating the loading distance of the test piece. The tensile loading screw rod and the compressive loading screw rod are respectively provided with a position display; and after the position display is coordinated with the screw pitch of the screw rod through the internal pitch, the specific moving position is displayed through the rotating number of turns of the screw rod, and the loading distance is calculated.
When the invention is used, the cylinder is connected with an air source through the control valve, the control valve can be a foot control valve, and the box cover can be quickly opened and closed through the operation of feet. The piston rod of the control cylinder drives the connecting slide block to slide backwards, and the transmission rod supporting support rod rotates around the cover hinge shaft to open the cover. The test piece that uses the sample anchor clamps will await measuring is installed on loading slider and loading seat, and salt fog spraying system is to the test incasement blowout salt fog, and the carousel power supply drives the carousel, drives the sample and rotates, can make the test piece contact salt fog in the salt fog testing machine more even, rotates hand wheel, can drive lead screw work, makes the relative loading seat of loading slider be close or keep away from, compresses or tensile to the rubber test piece, carries out rubber salt fog tensile compression test. The test data is more accurate, and the corrosion resistance of the test piece in the use state can be accurately measured. When a test piece needs to be put and taken, the box cover can be automatically opened, particularly the foot air box cover is opened, the test piece can be quickly and conveniently put and taken, the test piece taking and taking time is shortened, the opening angle of the box cover is controllable, and the experimental environment is prevented from being interfered by the outside and polluting the outside environment to the greatest extent; the experimental efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic diagram of the internal structure of the present invention with the cover removed and the cylinder for opening and closing the cover removed.
Fig. 4 is a schematic top view of the present invention with the cover removed.
Fig. 5 is a schematic structural diagram of a test piece placing table in the invention.
Detailed Description
The salt spray testing machine shown in fig. 1-5 is provided with a test box 3, a box cover 4 is arranged on the upper side of the test box 3, a test piece placing table is arranged in the test box 3 and provided with a salt spray spraying system, a spraying head 9 of the salt spray spraying system is arranged in the test box 3 and provided with a support frame 2, the test box 3 is arranged on the support frame 2, a turntable 12 is arranged in the test box, and the turntable 12 is arranged in the test box through a turntable bearing 11. The test piece placing table is arranged on a rotary table, a transmission shaft 14 with the lower end extending out of a test box is arranged on the lower side of the center of the rotary table 12, a sealing device (shaft seal) is arranged between the transmission shaft 14 and the test box 3, a rotary table power source 1 is arranged, the rotary table power source 1 is connected with the transmission shaft 14 and used for driving the rotary table to rotate, and as can be seen from the figure, the rotary table power source is a motor which is connected with the transmission shaft 14 through a speed reducer and a transmission. The test piece placing table is structurally characterized in that: the device is provided with a connecting seat 13, a loading slide way is arranged on the connecting seat 13, a loading slide block capable of sliding in the axial direction of the loading slide way is arranged on the loading slide way, and the loading slide way is two guide slide rails arranged in parallel; the two guide slide rails are symmetrically arranged on two sides of the loading screw rod, so that the operation is more stable. A loading seat matched with the loading sliding block is arranged on the connecting seat 13, the loading seat is fixedly arranged on the connecting seat, a loading screw rod is arranged on the connecting seat and on the loading slideway in the axial direction, a locking device is arranged on the loading screw rod, a hand-operated wheel 10 is arranged at one end of the loading screw rod, and a sample clamp is respectively arranged on the loading sliding block and the loading seat; case lid 4 rear side and 3 rear sides of proof box articulated, case lid 4 can be opened and close around articulated shaft with the proof box articulated, proof box right side rear portion is equipped with the switching seat, it has branch 5 to articulate through the articulated shaft that uncaps coaxial with case lid and proof box articulated shaft on the switching seat, upper portion fixed connection before 5 front ends of branch and the case lid right side, the proof box right side is equipped with seesaw's cylinder 8, be equipped with link block 7 on cylinder 8's the piston rod, cylinder 8 and link block 7 set up in the spout, cylinder 8's piston rod drives link block 7 and slides around in the spout, link block 7 upside articulates there is transfer line 6, the other end of transfer line 6 is articulated with link block 7 rear portion in the branch 5 of rear side. The cylinder 8 is a double-acting cylinder and can rapidly open and close the box cover and control the opening and closing angle of the box cover.
The invention further improves, the loading seat comprises a tensile loading seat 26 and a compressive loading seat 25, the tensile loading seat 26 and the compressive loading seat 25 are arranged in the middle of the connecting seat 13, the loading slide block comprises a tensile loading slide block 20 and a compressive loading slide block 24, and the loading screw rod comprises a tensile loading screw rod 21 and a compressive loading screw rod. Tensile loading seat 26 sets up in the left side of compression loading seat 25, and the left end portion and the right-hand member portion of connecting seat 13 are equipped with tensile lead screw supporting seat 16 and compression lead screw supporting seat respectively, and tensile loading lead screw 21, the compression lead screw supporting seat of installation on compression loading seat are installed on tensile lead screw supporting seat 16 and the tensile loading seat, and the compression loading lead screw is installed on compression loading seat, and tensile loading lead screw 21's nut is connected with tensile loading slider 20, and the nut and the compression loading slider of compression loading lead screw are connected. The tension loading seat and the compression loading seat can be integrally formed. The locking device is characterized in that a tensile locking screw and a compression locking screw are respectively arranged on the tensile lead screw supporting seat 16 and the compression lead screw supporting seat, and the front ends of the tensile locking screw and the compression locking screw can respectively abut against the tensile loading lead screw and the compression loading lead screw to lock the tensile loading lead screw and the compression loading lead screw; and the rear ends of the stretching locking screw rod and the compressing locking screw rod are respectively provided with a locking handle 15. Tensile and compressive salt spray tests can be performed on the test specimen simultaneously.
The invention further improves that the tensile loading seat and the tensile loading slide block are provided with opposite sample tensile clamps, and the structure of the sample tensile clamps is as follows: the clamp is provided with a clamp base 19, a clamping bolt is arranged on the clamp base 19, a rotating handle 17 is arranged at the upper end of the clamping bolt, a downward pressing boss is arranged on the clamping bolt, and a clamping head 18 capable of freely rotating is arranged on the clamping bolt below the downward pressing boss. The clamping bolt rotates to drive the downward pressing boss to move downwards, so that the clamping head 18 can be tightly pressed on the clamping head seat. The clamping head 18 is in a U-shaped groove shape with a downward opening, and a clamping pressure plate is arranged at the lower part of the U-shaped groove shape at the opposite side of the tensile loading seat and the tensile loading slide block. The lower side of the clamping head is provided with a guide bulge, a guide groove matched with the guide bulge is arranged on the position, opposite to the guide bulge, of the clamping head seat, and the guide bulge is located in the guide groove, so that the clamping head can be prevented from rotating along with the clamping bolt. A return spring is arranged between the clamping head and the clamping head seat, so that the clamping head is more beneficial to control. The chuck seat is arranged on the tensile loading seat or the tensile loading sliding block through a bolt. Compression loading seat and compression loading slider on be equipped with relative sample compression anchor clamps, sample compression anchor clamps's structure is: a compression clamping seat 22 is arranged, and a V-shaped positioning groove 23 with an open upper side is arranged on the compression clamping seat 22. The compression clamp holder 22 is fixedly arranged on the compression loading seat and the compression loading slide block through bolts, and the V-shaped positioning grooves 23 on the two compression clamp holders matched with the compression loading seat and the compression loading slide block are opposite. Because the cylindrical test piece radially deforms when compressed, and one side of the V-shaped positioning groove is adopted for supporting, even if the cylindrical test piece radially deforms, the other side of the cylindrical test piece is not fixed, so that the center of the circle of the test piece deviates, the center of the circle of the test piece is always kept tangent to the V-shaped positioning groove, and deformation is not influenced. And loading scales 27 are arranged on the connecting seat and the loading slide way in the axial direction. The loading scale 27 is matched with the tension loading slide block and the compression loading slide block and calculates the loading distance of the test piece. The tensile loading screw rod and the compressive loading screw rod are respectively provided with a position display; after the internal pitch of the position display is coordinated with the screw pitch of the screw rod, the specific moving position is displayed through the number of turns of the screw rod, the loading distance is calculated, the sample can be quantitatively compressed or stretched, and the using state is truly simulated.
When the invention is used, the cylinder is connected with an air source through the control valve, the control valve can be a foot control valve, and the box cover can be quickly opened and closed through the operation of feet. The piston rod of the control cylinder drives the connecting slide block to slide backwards, and the transmission rod supporting support rod rotates around the cover hinge shaft to open the cover. The test piece that uses the sample anchor clamps will await measuring is installed on loading slider and loading seat, and salt fog spraying system is to the test incasement blowout salt fog, and the carousel power supply drives the carousel, drives the sample and rotates, can make the test piece contact salt fog in the salt fog testing machine more even, rotates hand wheel, can drive lead screw work, makes the relative loading seat of loading slider be close or keep away from, compresses or tensile to the rubber test piece, carries out rubber salt fog tensile compression test. The test data is more accurate, and the corrosion resistance of the test piece in the use state can be accurately measured. When a test piece needs to be put and taken, the box cover can be automatically opened, particularly the foot air box cover is opened, the test piece can be quickly and conveniently put and taken, the test piece taking and taking time is shortened, the opening angle of the box cover is controllable, and the experimental environment is prevented from being interfered by the outside and polluting the outside environment to the greatest extent; the experimental efficiency is greatly improved.
Claims (8)
1. A salt spray testing machine is provided with a test box, a box cover is arranged on the upper side of the test box, a test piece placing table is arranged in the test box, a salt spray spraying system is arranged, and a spraying head of the salt spray spraying system is arranged in the test box; the test piece placing table is structurally characterized in that: the test device is provided with a connecting seat, a loading slide way is arranged on the connecting seat, a loading slide block capable of sliding in the axial direction of the loading slide way is arranged on the loading slide way, a loading seat matched with the loading slide block is arranged on the connecting seat, a loading lead screw is arranged on the connecting seat, a locking device is arranged on the loading lead screw, a hand wheel is arranged at one end of the loading lead screw, and sample clamps are respectively arranged on the loading slide block and the loading seat; the rear side of the box cover is hinged to the rear side of the test box, the rear portion of one side of the test box is provided with an opening and closing seat, a supporting rod is hinged to the opening and closing seat through an opening hinge shaft coaxial with a hinge shaft of the box cover and the test box, the front end of the supporting rod is fixedly connected with the front upper portion of the box cover, one side of the test box is provided with an air cylinder, a connecting slide block is arranged on a piston rod of the air cylinder, a transmission rod is hinged to the upper side of the connecting slide block.
2. The salt fog testing machine of claim 1, wherein the turntable is mounted to the test chamber via a turntable bearing.
3. The salt fog testing machine of claim 1, wherein the loading slide is two guide rails arranged in parallel.
4. The salt fog testing machine of claim 1, wherein the loading seat comprises a tensile loading seat and a compressive loading seat, the tensile loading seat and the compressive loading seat are arranged in the middle of the connecting seat, the loading slider comprises a tensile loading slider and a compressive loading slider, and the loading screw comprises a tensile loading screw and a compressive loading screw.
5. The salt fog testing machine of claim 4, wherein the locking device is a tensile locking screw and a compressive locking screw respectively disposed on the tensile lead screw supporting seat and the compressive lead screw supporting seat, and the front ends of the tensile locking screw and the compressive locking screw can respectively abut against and lock the tensile loading lead screw and the compressive loading lead screw; and the rear ends of the stretching locking screw rod and the compressing locking screw rod are respectively provided with a locking handle.
6. The salt fog testing machine of claim 5, wherein the tensile loading base and the tensile loading slide block are provided with opposite sample tensile clamps, and the structure of the sample tensile clamps is as follows: the clamp is provided with a clamp base, a clamping bolt is arranged on the clamp base, a rotating handle is arranged at the upper end of the clamping bolt, a downward pressing boss is arranged on the clamping bolt, and a clamping head capable of freely rotating is arranged on the clamping bolt below the downward pressing boss.
7. The salt fog testing machine of claim 6, wherein the compression loading seat and the compression loading slide block are provided with opposite sample compression clamps, and the structure of the sample compression clamps is as follows: is provided with a compression clamping seat, and a V-shaped positioning groove with an opening at the upper side is arranged on the compression clamping seat.
8. The salt spray testing machine of claim 7, wherein the loading scale is arranged on the connecting seat and on the loading slideway in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839310.5A CN110631983A (en) | 2019-09-05 | 2019-09-05 | Salt spray testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910839310.5A CN110631983A (en) | 2019-09-05 | 2019-09-05 | Salt spray testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110631983A true CN110631983A (en) | 2019-12-31 |
Family
ID=68971016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910839310.5A Pending CN110631983A (en) | 2019-09-05 | 2019-09-05 | Salt spray testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110631983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125332A (en) * | 2021-03-22 | 2021-07-16 | 同济大学 | Automatic rotating fatigue loading device for salt spray test |
-
2019
- 2019-09-05 CN CN201910839310.5A patent/CN110631983A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125332A (en) * | 2021-03-22 | 2021-07-16 | 同济大学 | Automatic rotating fatigue loading device for salt spray test |
| CN113125332B (en) * | 2021-03-22 | 2022-02-18 | 同济大学 | Automatic rotating fatigue loading device for salt spray test |
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