CN108956352A - For evaluating the experimental rig and test method of exemplar erosive wear resistant performance - Google Patents
For evaluating the experimental rig and test method of exemplar erosive wear resistant performance Download PDFInfo
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- CN108956352A CN108956352A CN201810703164.9A CN201810703164A CN108956352A CN 108956352 A CN108956352 A CN 108956352A CN 201810703164 A CN201810703164 A CN 201810703164A CN 108956352 A CN108956352 A CN 108956352A
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- 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
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
The invention discloses a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, including rotating platform, tests exemplar and seal case for shelf test medium, rotating platform is arranged in seal case, and tests exemplar connects on the rotating platform, and tests exemplar is steel for pipe sample.Experimental rig further includes driving mechanism, driving mechanism is connected on seal case, the connection of the center of driving mechanism and rotating platform, and driving mechanism driving rotating platform rotation, tests exemplar on rotating platform also and then rotates, tests exemplar rubs during rotating with the test(ing) medium in seal case structure, test(ing) medium simulates the medium in actual working environment in pipeline, the revolving speed of rotating platform simulates the flow velocity of medium in pipeline in actual working environment, the erosive wear situation of pipeline in actual working environment is speculated according to the erosive wear situation of tests exemplar.The invention also discloses a kind of for evaluating the test method of exemplar erosive wear resistant performance.
Description
Technical field
The invention belongs to duct test technical fields, and in particular to a kind of for evaluating the examination of exemplar erosive wear resistant performance
Experiment device and test method.
Background technique
Steel for pipe is in life everywhere as it can be seen that being widely used in the media such as sewer, natural gas line, crude oil pipeline.
While conveying various media, steel for pipe be responsible for burn into wash away, the situations such as pressure, stress and deformation.Steel for pipe
Slurry body (solid small particles, liquid two-phase medium) is carry in many cases by erosive wear, erosive wear is
Refer to that a kind of wear phenomenon destroyed occurs in surface when material is impacted by small and loose fluidized particle.For conveyance conduit, greatly
Part conveyance conduit is typically buried in underground, generally does not consider to replace in the length of service, therefore be directed to various transport environments, pipe
The evaluation and test of the performance indexes of road steel is very crucial.
There are suitable laboratory installation and side for the test of the performances such as the corrosion-resistant of steel for pipe, pressure distortion at present
Method is evaluated.But its working condition can not simulated directly for the erosive wear performance of steel for pipe and measured
Laboratory installation.In addition according to the abrasion mechanism of steel, the wearability of erosive wear performance and steel cannot function as a kind of property
Can and mutually compare.
Summary of the invention
For the deficiencies in the prior art, the purpose of the present invention is to provide one kind for evaluating exemplar resistance to erosion mill
Damage the experimental rig of performance, the simulation pipe line steel erosive wear state which can be fast and convenient.The present invention also provides
It is a kind of for evaluating the test method of exemplar erosive wear resistant performance, by the test method by simulation steel for pipe in reality
Prolonged erosive wear situation in the environment of border can be verified such with the erosive wear resistant performance of the Fast Evaluation steel for pipe
Whether steel for pipe meets the requirement under actual working environment.
To achieve the above object, the technical solution of the present invention is as follows: it is a kind of for evaluating steel for pipe erosive wear resistant performance
Experimental rig, including rotating platform, tests exemplar and seal case for shelf test medium, the rotating platform setting
In the seal case, the tests exemplar is connected on the rotating platform.
Further, the experimental rig further includes driving mechanism, and the driving mechanism is connected on the seal case,
The driving mechanism is connect with the center of the rotating platform, and the driving mechanism drives the rotating platform rotation.
Further, the rotating platform is circular rotating platform, and the circumference of the rotating platform is equipped with bolt, described
One end of bolt is fixedly connected on the rotating platform, and the other end of the bolt connects the tests exemplar.
Further, one end that the bolt is connect with the tests exemplar is equipped with external screw thread, sets in the tests exemplar
There is mounting hole, the mounting hole is fastened with the bolt with merga pass nut.
Further, the mounting hole is counter bore structure, and the mounting hole includes threaded hole and unthreaded hole, the unthreaded hole it is straight
Diameter is greater than the diameter of the threaded hole, and the threaded hole and the bolt cooperate, and the nut is arranged in the unthreaded hole, described
The top of bolt and the top of the nut are below the top of the unthreaded hole.
Further, the seal case is equipped with the opening for adding test(ing) medium into seal case, described to open
It is equipped at mouthful and the sealing cover for being open and being adapted to.
Further, on the housing, when test, the seal case was vertically arranged for opening setting, was equipped with described
Upward, the test(ing) medium added in the seal case did not had the tests exemplar of highest point, the seal case for one end of opening
Including substrate and shell, the opening setting is on the housing.
The invention further relates to a kind of for evaluating the test method of exemplar erosive wear resistant performance, based on described for commenting
The test method of the experimental rig of valence exemplar erosive wear resistant performance includes the following steps::
Step 1. measures the thickness of the tests exemplar first, uses W1Label；The tests exemplar is connected to again described
On rotating platform, the rotating platform is connected to the substrate and connect with the driving mechanism；
Step 2. links together the substrate and the housing seal, and seal case is vertically arranged, and is equipped with described
Upward, by described be open test(ing) medium is added into seal case until test(ing) medium did not had the examination of highest point in one end of opening
Until testing exemplar；
Step 3. starts the driving mechanism and drives the rotating platform rotation, and institute is recorded after rotating platform stable rotation
The revolving speed for stating driving mechanism is the revolving speed of rotating platform, uses V1Label, while on-test is recorded to used when off-test
Time, use T1Label；
Step 4. off-test takes out tests exemplar, measures the average value of the tests exemplar thickness direction minimum thickness,
Use W2Label；The mistake thickness rate (%) for calculating the tests exemplar in test period is used to evaluate and test the erosive wear resistant of such steel for pipe
Performance；
Step 5. needs to be on active service running time T according to the set length of service of such steel for pipe2With practical work
Make the flow velocity V of medium in such pipeline of environment2, the thick rate (%) of the practical mistake of use environment of such steel for pipe is calculated, this is evaluated
Whether kind steel for pipe meets the requirement under such working environment.
Further, it is calculated in the step 4 and loses formula used in thick rate (%) are as follows:Institute
It states and calculates formula used in the thick rate (%) of the practical mistake of use environment in step 5 are as follows: use Test(ing) medium in the step 2 is obtained using water and variable grain degree quartz sand proportion
?.
Further, the operation in the step 3 can be divided into two ways, mode one: according to actual job environmental Kuznets Curves
The revolving speed of the driving mechanism is to simulate the actual flow velocity of medium in pipeline；Mode two: accelerate the revolving speed of the driving mechanism with
Situation in speeding-up simulation actual environment simulates steel for pipe in the actual environment for a long time with the laboratory test of short time
Erosive wear situation.
The advantages of using technical solution of the present invention are as follows:
1. test(ing) medium simulates the medium in actual working environment in pipeline, the revolving speed of rotating platform when present invention test
The flow velocity of medium in pipeline in actual working environment is simulated, after the test rushing according to tests exemplar (i.e. steel for pipe sample)
Brush wear situation speculates the erosive wear situation of pipeline in actual working environment；The experimental rig structure is simple and convenient to operate, energy
Enough erosive wear resistant performances for fast and accurately evaluating steel for pipe in a short time.
2. the present invention has an impact in order to avoid erosive wear effect of the other factors to steel for pipe specimen surface, will pacify
Dress hole is designed as counter bore structure, because if the height of the bolt of fixed -piping steel curved beam is more than the table of steel for pipe sample
Face, can to steel for pipe sample, test(ing) medium washes away pipeline and is had an impact with the effect on steel curved beam surface during exercise, design spiral shell
The top of bolt and the top of nut are below the surface of steel for pipe sample, and such screw bolt and nut will not try steel for pipe
The erosive wear effect on sample surface has an impact, and ensure that the accuracy of test.
3. test method of the invention is used to be filled in sealed environment and is similar in test steel grade actual working environment
Slurry medium simulates in actual environment slurry medium to pipeline by revolving speed of the control steel for pipe sample in test(ing) medium
Eroding velocity, can also by accelerate driving mechanism revolving speed come the situation in speeding-up simulation actual environment, can be according to reality
Demand Selection experiment mode.
4. Sample devices and test method through the invention can conveniently simulate pipeline use under lab
Steel prolonged erosive wear situation in the actual environment, and can be tied according to the thick rate formula of the practical mistake of use environment and test
Fruit calculates mistake thickness rate of this steel grade under actual working environment, the straightforward erosive wear resistant for evaluating this steel grade
Energy.
5. experimental rig of the present invention is using seal case in order to storage test medium, steel for pipe sample is tried using rectangle
Sample is in order to measure the abrasion condition of sample, according to actual slurry medium in steel for pipe to be tested and working condition with having a competition
Test medium, placed vertically in seal case can circular rotating platform, the rectangular specimen of steel for pipe to be evaluated, circle are fixed on platform
Shape optional platform center connects outboard motor or motor, controls the adjustable built-in circular rotating of revolving speed of motor or motor
The revolving speed of platform is tried with driving steel for pipe sample to rotate in the environment of slurry medium using test(ing) medium and steel for pipe
Washing away between sample achievees the effect that simulate erosive wear test in actual environment.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the overall structure diagram of experimental rig of the present invention.
Fig. 2 is the structural schematic diagram of experimental rig of the present invention.
Fig. 3 is inventive pipeline steel curved beam and bolted structural schematic diagram.
Fig. 4 is the structural schematic diagram of inventive pipeline steel curved beam.
Label in above-mentioned figure is respectively as follows: 1, substrate；2, shell；3, rotating platform；4, tests exemplar；41, mounting hole；
42, threaded hole；43, unthreaded hole；5, seal case；51, it is open；52, sealing cover；6, driving mechanism；7, bolt；8, nut.
Specific embodiment
In the present invention, it is to be understood that term " length ", " width ", "upper", "lower", "front", "rear", " left side ",
" right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description present invention and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore be not considered as limiting the invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, including rotation
Turn platform 3, tests exemplar 4 and the seal case 5 for shelf test medium, rotating platform 3 is arranged in seal case 5, examination
It tests exemplar 4 to be connected on rotating platform 3, experimental rig further includes driving mechanism 6, and driving mechanism 6 is connected on seal case 5.
Seal case 5 includes substrate 1 and shell 2, and tests exemplar 4 is steel for pipe sample, and rotating platform 3 connects sealing on substrate 1
The outside of cabinet 5 is equipped with driving mechanism 6, and driving mechanism 6 connects on substrate 1.For the uniform of guarantee test exemplar erosive wear
Property, guarantee not influenced by bias concussion, driving mechanism 6 is connect with the center of rotating platform 3, and driving mechanism 6 drives
Rotating platform 3 rotates, and the tests exemplar 4 on rotating platform 3 also and then rotates, tests exemplar 4 rotate during with seal box
Test(ing) medium in body 5 rubs, and when test, test(ing) medium simulates the medium in actual working environment in pipeline, rotary flat
The revolving speed of platform 3 simulates the flow velocity of medium in pipeline in actual working environment, and according to tests exemplar 4, (i.e. pipeline is used after the test
Steel curved beam) erosive wear situation speculate actual working environment in pipeline erosive wear situation.The experimental rig structure is simple,
It is easy to operate, the erosive wear resistant performance of steel for pipe can be fast and accurately evaluated in a short time.
Facilitate installation for guarantee test device and test the stability of process, rotating platform 3 is designed as circular rotating and is put down
Platform, 3 circumference of rotating platform are equipped with bolt 7, and bolt 7 is distributed along the even circumferential of rotating platform 3, and one end of bolt 7 is fixed to be connected
It connects on rotating platform 3, the other end joint test exemplar 4 of bolt 7.One end that bolt 7 is connect with tests exemplar 4 is equipped with outer spiral shell
Line, tests exemplar 4 are equipped with mounting hole 41, and mounting hole 41 is fastened with bolt 7 with merga pass nut 8.
, can be to tests exemplar 4 in view of if the height of the bolt 1 of fixed tests exemplar 4 is more than the surface of tests exemplar 4
The effect on 4 surface of test(ing) medium washout test exemplar has an impact during exercise, in order to avoid other factors are to 4 table of tests exemplar
The erosive wear effect in face has an impact, and mounting hole 41 is designed as counter bore structure, and mounting hole 41 includes threaded hole 42 and light
Hole 43, the diameter of unthreaded hole 43 are greater than the diameter of threaded hole 42, and threaded hole 42 and bolt 7 cooperate, and nut 8 is arranged in unthreaded hole 43,
The top of bolt 7 and the top of nut 8 are below the top of unthreaded hole 43, and such bolt 7 and nut 8 will not be to tests exemplars 4
The erosive wear effect on surface has an impact, and ensure that the accuracy of test.When prepared by tests exemplar 4, installed in tests exemplar 4
The size in hole 41 carries out preparation according to the size of bolt 7 and nut 8 on experimental rig for fixing sample
Seal case 5 is equipped with the opening 51 for adding test(ing) medium into seal case 5, is equipped with and opens at opening 51
The sealing covers 52 of 51 adaptation of mouth.Opening 51 is arranged on shell 2, and seal case 5 is vertically arranged when test, one equipped with opening 51
Upward, the test(ing) medium added in seal case 5 did not had the tests exemplar 4 of highest point at end, then will be open 51 with sealing cover 52
It is sealed.
For convenience of the abrasion condition of measurement sample, rectangle is set by the shape of tests exemplar 4, test(ing) medium is little particle
Solid, liquid two-phase medium, driving mechanism 6 are motor or motor, and driving mechanism 6 controls the revolving speed of rotating platform 3.Control motor
Or the revolving speed of rotating platform 3 built in the adjustable seal case 5 of revolving speed of motor, drive tests exemplar 4 to starch in test(ing) medium
It is rotated in the environment of body medium, is reached in simulation actual environment using washing away between test(ing) medium and tests exemplar 4 and wash away mill
Damage the effect of test.
Experimental rig of the present invention using seal case in order to storage test medium, tests exemplar 4 use rectangular specimen with
Convenient for measuring the abrasion condition of sample, it is situated between according to actual slurry medium in steel for pipe to be tested and working condition proportioning test
Matter, placed in seal case vertically can circular rotating platform, the rectangular specimen of steel for pipe to be evaluated, circle choosing are fixed on platform
Assembling platform center connects outboard motor or motor, controls the adjustable built-in circular rotating platform of revolving speed of motor or motor
Revolving speed, to drive tests exemplar 4 to rotate in the environment of slurry medium, utilizing test(ing) medium and tests exemplar 4, (i.e. pipeline is used
Steel curved beam) between wash away achieve the effect that simulate actual environment in erosive wear test.
The invention further relates to a kind of test method in evaluation exemplar erosive wear resistant performance, which is based on upper
Experimental rig progress is stated, is included the following steps:
Step 1. measures the thickness of tests exemplar 4 first, uses W1Label, for convenience of the original size for measuring tests exemplar 4
With the actual size after erosive wear, tests exemplar 4 is designed as rectangular specimen；Tests exemplar 4 is connected to rotating platform 3 again
On, rotating platform 3 is connected to substrate 1 and connect with driving mechanism 6, and driving mechanism 6 controls the revolving speed of rotating platform 3.
Substrate 1 and shell 2 are sealed connected together by step 2., and seal case 5 is vertically arranged, one equipped with opening 51
Upward, by opening 51 test(ing) medium is added into seal case 5 until test(ing) medium did not had the tests exemplar 4 of highest point in end
Only, it is then sealed with sealing cover 52 and 51 cooperation of opening；The test(ing) medium is matched using water and variable grain degree quartz sand
It obtains, the configuration of test(ing) medium is configured according to the property of medium in real work.
Step 3. starts driving mechanism 6 and rotating platform 3 is driven to rotate, and records driving machine after 3 stable rotation of rotating platform
The revolving speed of structure 6 is the revolving speed of rotating platform 3, uses V1Label, while on-test to time used when off-test is recorded,
Use T1Label；In test for the working condition of control driving mechanism 6, can be carried out using following two mode: mode one:
The actual flow velocity of medium in pipeline is simulated according to the revolving speed of actual job environmental Kuznets Curves driving mechanism 6；Mode two: accelerate driving
The revolving speed of mechanism 6 simulates steel for pipe in reality with the laboratory test of short time with the situation in speeding-up simulation actual environment
Prolonged erosive wear situation in environment；Two ways is selected according to actual needs.
Tests exemplar 4 is taken out in step 4. off-test, measures the average value of 4 thickness direction minimum thickness of tests exemplar, uses
W2Label；According to the thick rate % calculation formula of mistake:The mistake for calculating the tests exemplar 4 in test period is thick
Rate % is used to evaluate and test the erosive wear resistant performance of such steel for pipe；Wherein: W1The thickness of=steel for pipe sample, W2=multiple
The average value of steel for pipe sample thickness direction minimum thickness after test.
Step 5. needs to be on active service running time T according to the set length of service of such steel for pipe2With practical work
Make the flow velocity V of medium in such pipeline of environment2, the thick rate % of the practical mistake of use environment of such steel for pipe is calculated, is evaluated such
Whether steel for pipe meets the requirement under such working environment.Calculate formula used in the thick rate % of the practical mistake of use environment are as follows:
It usesWherein: W1The thickness of=steel for pipe sample, W2=multiple tests
The average value of steel for pipe sample thickness direction minimum thickness afterwards, V1=experimental rig revolving speed, that is, rotating platform revolving speed, V2=real
The flow velocity of medium, T in such pipeline of border working environment1=test period, T2=such steel for pipe needs the real work being on active service
Time.
Test method of the invention uses the slurry for being filled with and being similar in test steel grade actual working environment in sealed environment
Body medium is simulated slurry medium in actual environment by revolving speed of the Control experiment exemplar 4 in test(ing) medium and rushed to pipeline
Brush speed, can also be by the revolving speed of quickening driving mechanism 6 come the situation in speeding-up simulation actual environment, can be according to actual needs
Selection experiment mode.
Sample devices and test method through the invention, can conveniently simulate steel for pipe under lab
Prolonged erosive wear situation in the actual environment, and can according to the thick rate formula of the practical mistake of use environment and test result,
Calculate mistake thickness rate of this steel grade under actual working environment, the straightforward erosive wear resistant performance for evaluating this steel grade.
The present invention is exemplarily described in conjunction with attached drawing above, it is clear that the present invention implements not by aforesaid way
Limitation, as long as use technical solution of the present invention carry out various unsubstantialities improvement, or it is not improved will be of the invention
Conception and technical scheme directly apply to other occasions, within the scope of the present invention.
Claims (10)
1. a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: including rotating platform (3), examination
Exemplar (4) and the seal case (5) for shelf test medium are tested, the rotating platform (3) is arranged in the seal case (5)
Interior, the tests exemplar (4) is connected on the rotating platform (3).
2. as described in claim 1 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: institute
Stating experimental rig further includes driving mechanism (6), and the driving mechanism (6) is connected on the seal case (5), the driving machine
Structure (6) is connect with the center of the rotating platform (3), and the driving mechanism (6) drives the rotating platform (3) to turn
It is dynamic.
3. as claimed in claim 1 or 2 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, feature exists
In: the rotating platform (3) is circular rotating platform, and the circumference of the rotating platform (3) is equipped with bolt (7), the bolt
(7) one end is fixedly connected on the rotating platform (3), and the other end of the bolt (7) connects the tests exemplar (4).
4. as claimed in claim 3 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: institute
It states one end that bolt (7) is connect with the tests exemplar (4) and is equipped with external screw thread, the tests exemplar (4) is equipped with mounting hole
(41), the mounting hole (41) is fastened with the bolt (7) with merga pass nut (8).
5. as claimed in claim 4 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: institute
Stating mounting hole (41) is counter bore structure, and the mounting hole (41) includes threaded hole (42) and unthreaded hole (43), the unthreaded hole (43)
Diameter is greater than the diameter of the threaded hole (42), and the threaded hole (42) and the bolt (7) cooperate, nut (8) setting
In the unthreaded hole (43), the top of the bolt (7) and the top of the nut (8) are below the top of the unthreaded hole (43)
End.
6. as claimed in claim 3 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: institute
It states seal case (5) to be equipped with for the opening (51) to addition test(ing) medium in seal case (5), be set at the opening (51)
There is the sealing cover (52) being adapted to the opening (51).
7. as claimed in claim 6 a kind of for evaluating the experimental rig of exemplar erosive wear resistant performance, it is characterised in that: institute
It states seal case (5) to be vertically arranged, is equipped with one end of the opening (51) upward, the test added in the seal case (5)
Medium did not had the tests exemplar (4) of highest point, and the seal case (5) includes substrate (1) and shell (2), the opening (51)
It is arranged on the shell (2).
8. a kind of for evaluating the test method of exemplar erosive wear resistant performance, it is characterised in that: be based on claim 1 to 7 times
The test method of experimental rig described in meaning one for evaluating exemplar erosive wear resistant performance includes the following steps:
Step 1. measures the thickness of the tests exemplar (4) first, uses W1Label；The tests exemplar (4) is connected to again described
On rotating platform (3), the rotating platform (3) is connected to the substrate (1) and connect with the driving mechanism (6)；
The substrate (1) and the shell (2) are sealed connected together by step 2., and seal case structure (5) is vertically arranged,
Upward, by the opening (51), into seal case structure (5), addition test(ing) medium is straight for one end equipped with the opening (51)
Until test(ing) medium did not had the tests exemplar (4) of highest point；
Step 3. starts the driving mechanism (6) and drives rotating platform (3) rotation, after rotating platform (3) stable rotation
The revolving speed for recording the driving mechanism (6) is the revolving speed of rotating platform (3), uses V1Label, while on-test is recorded to examination
The time used, uses T at the end of testing1Label；
Step 4. off-test takes out tests exemplar (4), measures being averaged for the tests exemplar (4) thickness direction minimum thickness
Value, uses W2Label；The mistake thickness rate (%) for calculating the tests exemplar (4) in test period is used to evaluate and test the resistance to punching of such steel for pipe
Brush wear performance；
Step 5. needs to be on active service running time T according to the set length of service of such steel for pipe2And actual working environment
The flow velocity V of medium in such pipeline2, the thick rate (%) of the practical mistake of use environment of such steel for pipe is calculated, such pipeline is evaluated
Whether meet the requirement under such working environment with steel.
9. as claimed in claim 8 for evaluating the test method of steel for pipe erosive wear resistant performance, it is characterised in that: institute
It states to calculate in step 4 and loses formula used in thick rate (%) are as follows:It calculates and uses in the step 5
Formula used in the thick rate (%) of the practical mistake of environment are as follows: use environment is practicalIt is described
Test(ing) medium in step 2 is obtained using water and variable grain degree quartz sand proportion.
10. as claimed in claim 8 for evaluating the test method of steel for pipe erosive wear resistant performance, it is characterised in that:
Operation in the step 3 can be divided into two ways, mode one: according to the revolving speed of driving mechanism described in actual job environmental Kuznets Curves
To simulate the actual flow velocity of medium in pipeline；Mode two: accelerate the revolving speed of the driving mechanism in speeding-up simulation actual environment
The case where, with the laboratory test of short time, simulate steel for pipe prolonged erosive wear situation in the actual environment.
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| CN109900576A (en) * | 2019-01-03 | 2019-06-18 | 中国科学院近代物理研究所 | A kind of experimental provision and method for assessing particle stream collective friction and wear behavior |
| CN110346233A (en) * | 2019-07-31 | 2019-10-18 | 中国人民解放军海军工程大学 | A kind of new coating flushing resistance test platform |
| CN110608962A (en) * | 2019-09-26 | 2019-12-24 | 山东科技大学 | Concrete injection pipeline abrasion test device and method |
| CN110823738A (en) * | 2019-10-22 | 2020-02-21 | 西北工业大学 | Testing device and testing method for simulating erosion corrosion of blades |
| CN111693394A (en) * | 2020-05-19 | 2020-09-22 | 三联泵业股份有限公司 | Wear-resisting corrosion resistant flow passage component performance test device |
| CN113376044A (en) * | 2021-06-10 | 2021-09-10 | 中国兵器工业第五九研究所 | High-temperature high-pressure gas scouring experimental device |
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