CN108489895A - A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane - Google Patents
A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane Download PDFInfo
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- CN108489895A CN108489895A CN201810231786.6A CN201810231786A CN108489895A CN 108489895 A CN108489895 A CN 108489895A CN 201810231786 A CN201810231786 A CN 201810231786A CN 108489895 A CN108489895 A CN 108489895A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The invention discloses a kind of detection methods and detecting instrument for the anti-wiping property value of reverse osmosis membrane.Detection method includes preparing sample to be tested, preparing detecting instrument, sample to be tested is placed on the datum plate of detecting instrument, dyeing processing is carried out after so that sample to be tested is made linear uniform motion relative to friction head and counterweight, judge sample situation according to coloration result, anti-wiping property value is calculated according to the counterweight gross mass placed；Detecting instrument includes casing, motor, leading screw, datum plate and brake pad, motor, guide rail are fixedly connected with machine class, datum plate is flat on guide rail, and brake pad is fixedly connected with casing and is flat on datum plate upper surface, and leading screw both ends are connect with motor output shaft and datum plate respectively.Technical solution using the present invention realizes the quantitative test of wiping property value anti-to barrier film, simplifies the operation difficulty of testing staff, improve measurement accuracy and sensitivity, effectively reduces defective products reverse osmosis membrane and flow into production process.
Description
Technical field
The invention belongs to water purification element testing technical fields, especially relate to a kind of detection side for the anti-wiping property value of reverse osmosis membrane
Method and detecting instrument.
Background technology
With the raising of people's living standard, people promote purification and set to drinking water safety pay attention to day by day
The continuous development of standby and related purification treatment technology, in existing purification apparatus, various filtration, purification membrane components are net
Change the core of equipment, wherein all kinds of cleaning equipments that reverse osmosis membrane and use reverse osmosis membrane manufacture are widely used general.It is right
For reverse osmosis membrane production firm, the anti-wiping property of reverse osmosis membrane is an important quality detecting index, can be according to this
Testing result judges whether the reverse osmosis membrane of each different production batch is non-defective unit or defective products, determines whether to need to adopt
Measure is taken to be reprocessed.However, in the prior art, there is no can carry out the anti-wiping value of reverse osmosis membrane accurately to quantify
The detecting instrument and method of measurement, reviewer have to by virtue of experience judge, or by manual methods is reverse osmosis
Diaphragm destroy, after dyeing observe reverse osmosis membrane the situation that is damaged, if reverse osmosis membrane surface breakdown seriously if be judged as
Defective products is determined as that non-defective unit, this detection method want the experience of testing staff if reverse osmosis membrane surface breakdown unobvious
It asks very high, and testing result error is very big, is easy to cause defective products reverse osmosis membrane and flows into production process, affect
The qualification rate of manufacturing enterprise.
Invention content
In order to solve the above technical problems, the present invention provides a kind of detection method for the anti-wiping property value of reverse osmosis membrane and inspections
Survey instrument.
The present invention is achieved by the following technical programs.
The present invention provides a kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane, described for reverse osmosis
Detection method includes the following steps for the anti-wiping property value of film：
Step 1：Prepare sample to be tested：Several reverse osmosis membranes are chosen, all reverse osmosis membranes are manufactured into shape ruler
Several very little identical samples to be tested, if it is membrane surface that sample to be tested, which has using a side surface of function, relative to described
The another side of membrane surface is diaphragm bottom surface；
Step 2：Prepare detecting instrument：Prepare the detecting instrument for the anti-wiping property value of reverse osmosis membrane, the detector utensil
There is the datum plate of horizontal in the horizontal direction, is equipped with brake pad above the datum plate, the brake pad is relative to the datum plate
Position is set as initial position at the orthographic projection of upper surface, and the datum plate can be at the uniform velocity flat in the horizontal direction relative to the brake pad
It moves；
Step 3：Place sample to be tested：One is picked up from sample to be tested described in step 1, by the sample to be tested of pickup
It is laid on datum plate described in step 2, and makes the membrane surface of the sample to be tested towards direction straight up；
Step 4：Test and dyeing：One piece of weights is placed in the vertical top of the brake pad described in step 2, makes described in step 3
After datum plate and sample to be tested evenly move a distance relative to brake pad and counterweight along horizontal direction simultaneously, then it will wait for
Test specimens are dyed using dyestuff, observe and judge the membrane surface quality of the sample to be tested after dyeing, and by evaluation result
Divide into impaired sample to be tested and undamaged sample to be tested；
Step 5：Record test result：If acquired in from step 4 is undamaged sample to be tested, from step 1
Again a sample to be tested is picked up in the sample to be tested, an increment weight is placed in the vertical top of the brake pad described in step 2
Code repeats step 3 to step 4, sample to be tested is damaged until obtaining；If acquired in from step 4 is impaired to be tested
Sample then records the gross mass for being positioned over all counterweights on the brake pad at this time；
Step 6：Step 3 to step 5 repeats repeatedly to calculate the counterweight gross mass after repeatedly test
Arithmetic mean of instantaneous value, the result are the anti-wiping value of the sample to be tested.
It further includes being put into sample to be tested in the pure water that temperature is 20 DEG C that sample to be tested is prepared described in step 1, by extremely
Sample to be tested is taken out after impregnating within few 24 hours.
The appearance profile size of sample to be tested described in step 1 is 10cm × 10cm.
The quality of increment counterweight described in step 4 is 1g.
Dyestuff described in step 4 is the rhodamine B solution that mass concentration is 0.1%-10%.
In addition, the present invention also provides a kind of detecting instrument for the anti-wiping property value of reverse osmosis membrane, including casing, motor, silk
Thick stick, datum plate and brake pad, the motor are fixedly installed in the casing, and the casing upper surface is equipped with guide rail, institute
It states datum plate and is flat on the guide rail and parallel with horizontal plane, the brake pad is fixedly connected with the casing and horizontal
In the datum plate upper surface, one end of the leading screw is fixedly connected with the motor output shaft, the other end of the leading screw with
The datum plate is spirally connected.
The detecting instrument for the anti-wiping property value of reverse osmosis membrane further includes the dye being fixedly connected with the casing lateral wall
Hopper, and the dyestuff slot is close with the leading screw joining distal ends.
A brake pad side surface opposite with the datum plate upper surface is downwardly convex, radian is 2 π/3 circular arc
Face.
The datum plate upper table surface roughness is less than Ra0.1.
The beneficial effects of the present invention are：Technical solution using the present invention, wiping property value anti-to barrier film are tested
When, so that reverse osmosis membrane is laid on the datum plate with certain roughness, is applied vertically to reverse osmosis membrane by counterweight
Downward normal pressure makes reverse osmosis membrane be completely attached to benchmark plate surface, then by making to make phase between reverse osmosis membrane and datum plate
To linear uniform motion, at this moment tractive force suffered by reverse osmosis membrane and datum plate is applied to rubbing for reverse osmosis membrane with brake pad and counterweight
It is identical to wipe power size, and direction is on the contrary, when gradually increasing counterbalance mass, the frictional force suffered by reverse osmosis membrane and datum plate by
It is cumulative big, when counterweight pressure reaches the critical pressure that reverse osmosis membrane can bear, at this moment under linear uniform motion state by
Dynamic balance is broken, and reverse osmosis membrane surface layer is made to be destroyed, and therefore, at this moment can quantitatively judge reverse osmosis from the quality of counterweight
The anti-wiping property value of permeable membrane, to easily make testing staff be easy to quantitatively judge the anti-wiping value of the reverse osmosis membrane.Using this
The detection method provided and detecting instrument are provided, the operation difficulty of testing staff is simplified, testing staff is made no longer to sentence by rule of thumb
The quality for determining reverse osmosis membrane improves accuracy of detection and the sensitivity of the anti-wiping property value of reverse osmosis membrane, it is anti-to effectively reduce defective products
Diaphragm is permeated to flow into production process,
Description of the drawings
Fig. 1 is structural schematic diagram of the present invention for the detecting instrument of the anti-wiping property value of reverse osmosis membrane.
In figure：1- casings, 2- motors, 3- leading screws, 4- datum plates, 5- brake pads, 6- guide rails, 7- dyestuff slots, 8- counterweights, 9-
Diaphragm press strip, 10- belt drivers, 11- programmable controllers.
Specific implementation mode
Be described further below technical scheme of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1, the present invention provides a kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane, including
Following steps：
Step 1：Prepare sample to be tested：Several reverse osmosis membranes are chosen, all reverse osmosis membranes are manufactured into shape ruler
Several very little identical samples to be tested, if it is membrane surface that sample to be tested, which has using a side surface of function, relative to diaphragm
The another side on surface is diaphragm bottom surface；Further, prepare sample to be tested further include by sample to be tested be put into temperature be 20 DEG C
In pure water, sample to be tested is taken out after at least 24 hours impregnate.The appearance profile size of sample to be tested is 10cm × 10cm.Instead
The quantity of infiltration diaphragm is at least 5.
Step 2：Prepare detecting instrument：Prepare the detecting instrument for the anti-wiping property value of reverse osmosis membrane, detecting instrument has edge
The datum plate 4 of horizontal direction horizontal, 4 top of datum plate are equipped with brake pad 5, positive throwing of the brake pad 5 relative to 4 upper surface of datum plate
Position is set as initial position at shadow, and datum plate 4 can be relative to the uniform translation in the horizontal direction of brake pad 5；
Step 3：Place sample to be tested：One is picked up from sample to be tested in step 1, and the sample to be tested of pickup is tiled
In on step 2 datum plate 4, and make the membrane surface of the sample to be tested towards direction straight up；
Step 4：Test and dyeing：One piece of weights is placed in the vertical top of step 2 brake pad 5, makes step 3 datum plate 4
After evenly a distance being moved with sample to be tested along horizontal direction relative to brake pad 5 and counterweight simultaneously, then will be to be tested
Sample is dyed using dyestuff, observes and judge the membrane surface quality of the sample to be tested after dyeing, and evaluation result is distinguished
For impaired sample to be tested and undamaged sample to be tested；Further, the quality of increment counterweight is 1g in step 4.It is contaminated in step 4
Material is the rhodamine B solution that mass concentration is 0.1%-10%.
Step 5：Record test result：If acquired in from step 4 is undamaged sample to be tested, from step 1
Again a sample to be tested is picked up in sample to be tested, is placed an increment counterweight in the vertical top of step 2 brake pad 5, is repeated to walk
Rapid three are damaged sample to be tested to step 4, until obtaining；If acquired in from step 4 is impaired sample to be tested, record
It is positioned over the gross mass of all counterweights on brake pad 5 at this time；
Step 6：Step 3 to step 5 repeats repeatedly to calculate the counterweight gross mass after repeatedly test
Arithmetic mean of instantaneous value, the result are the anti-wiping value of the sample to be tested.Further, step 3 to step 5 repeats in step 6
Carry out number at least three times.Result of calculation shows that the gross mass of all counterweights when scratch is bigger, then the anti-wiping of reverse osmosis membrane
It is better to hinder performance.Quantitative analysis preferably can be carried out to the anti-wiping performance of reverse osmosis membrane using the detection method, be reverse osmosis membrane
The anti-wiping performance judgement of piece provides accurate foundation.
Technical solution using the present invention makes reverse osmosis membrane be laid in tool when wiping property value anti-to barrier film is tested
Have on the datum plate of certain roughness, normal pressure vertically downwards is applied to reverse osmosis membrane by counterweight, is made reverse osmosis
Film is completely attached to benchmark plate surface, then by making to make opposite linear uniform motion between reverse osmosis membrane and datum plate, at this moment instead
It is identical that tractive force suffered by permeable membrane and datum plate and brake pad and counterweight are applied to the frictional force size of reverse osmosis membrane, and direction phase
Instead, when gradually increasing counterbalance mass, the frictional force suffered by reverse osmosis membrane and datum plate gradually increases, when counterweight pressure reaches
When the critical pressure that reverse osmosis membrane can bear, at this moment the stress balance under linear uniform motion state is broken, and is made reverse osmosis
Film surface layer is destroyed, and therefore, at this moment can quantitatively judge the anti-wiping property value of reverse osmosis membrane from the quality of counterweight, to convenient
Ground makes testing staff be easy to quantitatively judge the anti-wiping value of the reverse osmosis membrane.
Using detection method provided by the invention and detecting instrument, the operation difficulty of testing staff is simplified, makes detection people
Member no longer judges the quality of reverse osmosis membrane by rule of thumb, improves accuracy of detection and the sensitivity of the anti-wiping property value of reverse osmosis membrane, effectively
Reduce defective products reverse osmosis membrane to flow into production process,
In addition, the present invention also provides a kind of detecting instrument for the anti-wiping property value of reverse osmosis membrane, including casing 1, motor
2, leading screw 3, datum plate 4 and brake pad 5, motor 2 are fixedly installed in casing 1, and 1 upper surface of casing is equipped with guide rail 6, benchmark
Plate 4 is flat on guide rail 6 and parallel with horizontal plane, and brake pad 5 is fixedly connected with casing 1 and is flat on 4 upper table of datum plate
The one end in face, leading screw 3 is fixedly connected with 2 output shaft of motor, and the other end and the datum plate 4 of leading screw 3 are spirally connected.
Further, the detecting instrument for the anti-wiping property value of reverse osmosis membrane further includes being fixedly connected with 1 lateral wall of casing
Dyestuff slot 7, and the dyestuff slot 7 is close with 3 joining distal ends of leading screw.
Further, the material of brake pad 5 is the stainless steel that the trade mark is 316.4 upper table surface roughness of datum plate is less than
Ra0.1.The side surface opposite with 4 upper surface of datum plate of brake pad 5 is downwardly convex, radian is 2 π/3 arc surface.Meanwhile
Brake pad 5 be symmetrical structure, when not on brake pad 5 place counterweight when be static balance state, not with film contact.
Further, for reverse osmosis membrane it is anti-wipe property value detecting instrument further include diaphragm press strip 9, belt driver 10 with
And programmable controller 11,2 speed of service of motor are controlled by programmable controller 11, motor 2 is driven by belt driver 10
Leading screw 3 rotates, to make datum plate 4 on guide rail 6 can bidirectionally uniform motion, make brake pad 5 in the compression weight of counterweight 8
Under, with contacted with 9 fixed sample to be tested reverse osmosis membrane of diaphragm press strip after returned just after entering dyestuff slot 7 after sliding friction
Beginning position.
After completing test process, whether observation sample to be tested reverse osmosis membrane abrades, increasing counterweight 8 if scratch does not occur
Weight simultaneously replaces sample to be tested reverse osmosis membrane, and the weight that counterweight 8 is reduced if scratch has occurred re-starts test process, until
The gross mass of the critical scratch counterweight 8 of the sample to be tested reverse osmosis membrane is found, test process at least three times, take and test three times
As a result anti-wiping value of the average value as the sample to be tested reverse osmosis membrane.
Claims (9)
1. a kind of detection method for the anti-wiping property value of reverse osmosis membrane, it is characterised in that：Include the following steps：
Step 1：Prepare sample to be tested：Several reverse osmosis membranes are chosen, all reverse osmosis membranes are manufactured into appearance and size phase
Several same samples to be tested, if it is membrane surface that sample to be tested, which has using a side surface of function, relative to the diaphragm
The another side on surface is diaphragm bottom surface；
Step 2：Prepare detecting instrument：Prepare the detecting instrument for the anti-wiping property value of reverse osmosis membrane, the detecting instrument has edge
The datum plate (4) of horizontal direction horizontal, datum plate (4) top are equipped with brake pad (5), and the brake pad (5) is relative to institute
It states position at the orthographic projection of datum plate (4) upper surface and is set as initial position, the datum plate (4) can be relative to the brake pad
(5) uniform translation in the horizontal direction；
Step 3：Place sample to be tested：One is picked up from sample to be tested described in step 1, and the sample to be tested of pickup is tiled
On the datum plate described in step 2 (4), and make the membrane surface of the sample to be tested towards direction straight up；
Step 4：Test and dyeing：One piece of weights is placed in the vertical top of the brake pad described in step 2 (5), makes described in step 3
After datum plate (4) and sample to be tested evenly move a distance relative to brake pad (5) and counterweight along horizontal direction simultaneously,
Sample to be tested is dyed using dyestuff again, observes and judge the membrane surface quality of the sample to be tested after dyeing, and will be commented
Sentence result and divides into impaired sample to be tested and undamaged sample to be tested；
Step 5：Record test result：If acquired in from step 4 is undamaged sample to be tested, described in step 1
Again a sample to be tested is picked up in sample to be tested, an increment counterweight is placed in the vertical top of the brake pad described in step 2 (5),
Step 3 is repeated to step 4, sample to be tested is damaged until obtaining；If acquired in from step 4 is impaired sample to be tested,
Record the gross mass for being positioned over all counterweights on the brake pad (5) at this time；
Step 6：Step 3 to step 5 repeats repeatedly to calculate the arithmetic of the counterweight gross mass after repeatedly test
Average value, the result are the anti-wiping value of the sample to be tested.
2. the detection method for the anti-wiping property value of reverse osmosis membrane as described in claim 1, it is characterised in that：Described in step 1
It further includes being put into sample to be tested in the pure water that temperature is 20 DEG C to prepare sample to be tested, takes out and waits for after at least 24 hours impregnate
Test specimens.
3. the detection method for the anti-wiping property value of reverse osmosis membrane as described in claim 1, it is characterised in that：Described in step 1
The appearance profile size of sample to be tested is 10cm × 10cm.
4. the detection method for the anti-wiping property value of reverse osmosis membrane as described in claim 1, it is characterised in that：Described in step 4
The quality of increment counterweight is 1g.
5. the detection method for the anti-wiping property value of reverse osmosis membrane as described in claim 1, it is characterised in that：Described in step 4
Dyestuff is the rhodamine B solution that mass concentration is 0.1%-10%.
6. a kind of detecting instrument for the anti-wiping property value of reverse osmosis membrane, it is characterised in that：Including casing (1), motor (2), leading screw
(3), datum plate (4) and brake pad (5), the motor (2) are fixedly installed in the casing (1), casing (1) upper table
Face is equipped with guide rail (6), and the datum plate (4) is flat on the guide rail (6) and, the brake pad parallel with horizontal plane
(5) be fixedly connected with and be flat on the datum plate (4) upper surface with the casing (1), one end of the leading screw (3) with it is described
Motor (2) output shaft is fixedly connected, and the other end and the datum plate (4) of the leading screw (3) are spirally connected.
7. the detecting instrument for the anti-wiping property value of reverse osmosis membrane as claimed in claim 6, it is characterised in that：It is described to be used for reverse osmosis
The detecting instrument of the anti-wiping property value of permeable membrane further includes the dyestuff slot (7) being fixedly connected with the casing (1) lateral wall, and the dyestuff
Slot (7) is close with the leading screw (3) joining distal ends.
8. the detection method for the anti-wiping property value of reverse osmosis membrane as claimed in claim 6, it is characterised in that：The brake pad
(5) side surface opposite with the datum plate (4) upper surface is the arc surface downwardly convex, radian is 2 π/3.
9. the detecting instrument for the anti-wiping property value of reverse osmosis membrane as claimed in claim 6, it is characterised in that：The datum plate
(4) upper table surface roughness is less than Ra0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231786.6A CN108489895A (en) | 2018-03-20 | 2018-03-20 | A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810231786.6A CN108489895A (en) | 2018-03-20 | 2018-03-20 | A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane |
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| CN108489895A true CN108489895A (en) | 2018-09-04 |
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ID=63318593
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810231786.6A Pending CN108489895A (en) | 2018-03-20 | 2018-03-20 | A kind of detection method and detecting instrument for the anti-wiping property value of reverse osmosis membrane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849741A (en) * | 2019-11-28 | 2020-02-28 | 万华化学集团股份有限公司 | Flat-plate membrane crease mechanical durability detection instrument and detection method |
| CN115414788A (en) * | 2022-08-03 | 2022-12-02 | 佛山市麦克罗美的滤芯设备制造有限公司 | Reverse osmosis membrane detection device and reverse osmosis membrane detection method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348377Y (en) * | 1998-07-16 | 1999-11-10 | 机械工业部上海材料研究所 | Test device for surface friction properties of wire |
| CN1776398A (en) * | 2005-11-29 | 2006-05-24 | 中国乐凯胶片集团公司 | High temperature scratch-resistant detecting instrument |
| CN101051020A (en) * | 2007-05-17 | 2007-10-10 | 公安部上海消防研究所 | Anti-slip property detector for shoes |
| CN101556238A (en) * | 2009-05-11 | 2009-10-14 | 中国船舶重工集团公司第七二五研究所 | Device and method for testing linear reciprocating sliding friction and abrasion |
| CN102507357A (en) * | 2011-10-24 | 2012-06-20 | 温州意华通讯接插件有限公司 | Plating surface wear resistance tester |
| CN102908914A (en) * | 2012-10-25 | 2013-02-06 | 贵阳时代沃顿科技有限公司 | Composite separating membrane with alloy ultrafiltration layer and preparation method of composite separating membrane |
| CN103551045A (en) * | 2013-11-11 | 2014-02-05 | 国家电网公司 | Dye determination method for oxidization condition of reverse osmosis membrane |
| CN104941461A (en) * | 2014-03-27 | 2015-09-30 | 贵阳时代沃顿科技有限公司 | Nanofiltration membrane for seawater desalination and preparation method thereof |
| CN106053335A (en) * | 2016-05-30 | 2016-10-26 | 华为技术有限公司 | Sliding simulation testing system |
| CN205679473U (en) * | 2016-06-12 | 2016-11-09 | 苏州瑞荣精密机械厂 | Friction testing fixture and friction testing instrument |
| CN206248526U (en) * | 2016-12-16 | 2017-06-13 | 北京金风科创风电设备有限公司 | Friction coefficient measuring apparatus |
| CN106908379A (en) * | 2017-03-24 | 2017-06-30 | 重庆邮电大学 | The controllable coefficient of sliding friction detection method and device of a kind of magnetosensitive rubber |
| CN206362655U (en) * | 2017-01-10 | 2017-07-28 | 东莞市辉达仪器有限公司 | A kind of electric abrasion resistance testing machine |
-
2018
- 2018-03-20 CN CN201810231786.6A patent/CN108489895A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348377Y (en) * | 1998-07-16 | 1999-11-10 | 机械工业部上海材料研究所 | Test device for surface friction properties of wire |
| CN1776398A (en) * | 2005-11-29 | 2006-05-24 | 中国乐凯胶片集团公司 | High temperature scratch-resistant detecting instrument |
| CN101051020A (en) * | 2007-05-17 | 2007-10-10 | 公安部上海消防研究所 | Anti-slip property detector for shoes |
| CN101556238A (en) * | 2009-05-11 | 2009-10-14 | 中国船舶重工集团公司第七二五研究所 | Device and method for testing linear reciprocating sliding friction and abrasion |
| CN102507357A (en) * | 2011-10-24 | 2012-06-20 | 温州意华通讯接插件有限公司 | Plating surface wear resistance tester |
| CN102908914A (en) * | 2012-10-25 | 2013-02-06 | 贵阳时代沃顿科技有限公司 | Composite separating membrane with alloy ultrafiltration layer and preparation method of composite separating membrane |
| CN103551045A (en) * | 2013-11-11 | 2014-02-05 | 国家电网公司 | Dye determination method for oxidization condition of reverse osmosis membrane |
| CN104941461A (en) * | 2014-03-27 | 2015-09-30 | 贵阳时代沃顿科技有限公司 | Nanofiltration membrane for seawater desalination and preparation method thereof |
| CN106053335A (en) * | 2016-05-30 | 2016-10-26 | 华为技术有限公司 | Sliding simulation testing system |
| CN205679473U (en) * | 2016-06-12 | 2016-11-09 | 苏州瑞荣精密机械厂 | Friction testing fixture and friction testing instrument |
| CN206248526U (en) * | 2016-12-16 | 2017-06-13 | 北京金风科创风电设备有限公司 | Friction coefficient measuring apparatus |
| CN206362655U (en) * | 2017-01-10 | 2017-07-28 | 东莞市辉达仪器有限公司 | A kind of electric abrasion resistance testing machine |
| CN106908379A (en) * | 2017-03-24 | 2017-06-30 | 重庆邮电大学 | The controllable coefficient of sliding friction detection method and device of a kind of magnetosensitive rubber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849741A (en) * | 2019-11-28 | 2020-02-28 | 万华化学集团股份有限公司 | Flat-plate membrane crease mechanical durability detection instrument and detection method |
| CN110849741B (en) * | 2019-11-28 | 2023-03-28 | 万华化学集团股份有限公司 | Flat-plate diaphragm crease mechanical durability detection instrument and detection method |
| CN115414788A (en) * | 2022-08-03 | 2022-12-02 | 佛山市麦克罗美的滤芯设备制造有限公司 | Reverse osmosis membrane detection device and reverse osmosis membrane detection method |
| CN115414788B (en) * | 2022-08-03 | 2024-04-26 | 佛山市麦克罗美的滤芯设备制造有限公司 | Reverse osmosis membrane detection device and reverse osmosis membrane detection method |
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Application publication date: 20180904 |