CN106290039A - steel ball abrasion test machine - Google Patents
steel ball abrasion test machine Download PDFInfo
- Publication number
- CN106290039A CN106290039A CN201610948339.3A CN201610948339A CN106290039A CN 106290039 A CN106290039 A CN 106290039A CN 201610948339 A CN201610948339 A CN 201610948339A CN 106290039 A CN106290039 A CN 106290039A
- Authority
- CN
- China
- Prior art keywords
- gyroaxis
- feed tank
- body feed
- casing
- steel ball
- Prior art date
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- Granted
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
A kind of steel ball abrasion test machine, belongs to piano plate equipment technical field.Including a body feed tank casing, it is equipped with a residue-removing door in the front side of this body feed tank casing or rear side；Single-revolution axle and single-revolution axle drive mechanism, the left end of gyroaxis is rotatably supported on the left tank wall of described body feed tank casing and is stretched over outside the casing chamber of body feed tank casing and is in transmission connection with described gyroaxis drive mechanism, the middle part of gyroaxis is positioned at box cavity and at the middle part of this gyroaxis, space state is provided with test ball and fixes bar, the right-hand member of gyroaxis is rotatably supported on the right tank wall of body feed tank casing, and gyroaxis drive mechanism is arranged on body feed tank casing in the position of the left end corresponding to described gyroaxis.Make steel ball test under Simulated Service Environment, be possible not only to avoid blindness, embody good specific aim simultaneously, it is possible to ensure and obtain truthful data.
Description
Technical field
The invention belongs to piano plate equipment technical field, be specifically related to a kind of steel ball abrasion test machine.
Background technology
As is known in the industry, ball mill is widely used at the production industry of mineral products, cement, carbide etc, and used by ball mill
Ball-milling medium be steel ball, the quality of steel ball anti-wear performance and the production cost of this type of industry have direct cause effect relation, with
Time grinding efficiency also produced corresponding impact.Therefore, as steel ball production firm while considering steel ball toughness, often need
The abrasion resistance of steel ball to be taken into account.
As Chinese invention patent publication No. CN104101538A(steel ball life testing machine) description the 0002nd
Section is alleged: " in decades, domestic factories for steel balls uses manual testing's method that its steel ball produced is carried out the life-span mostly
Test, ability and skill requirement condition to testing staff are harsh, and manual detection has certain limitation and randomness, no
Can meet constant quality standard, steel ball quality of dispatching from the factory cannot ensure ... ".It addition, according to known to the applicant, current domestic steel
The another kind of detection method of the steel ball that it produces is by ball production firm: is delivered by the steel ball periodically or non-periodically extracted and has
The professional testing agency of qualification tests, and on the one hand this way is difficult to be held by steel ball production firm because testing expense is high
It is subject to；On the other hand the requirement understanding steel ball quality at any time can not be met because of test period length；Another further aspect cannot meet and know
Know that Focus On Quality demand, because, as steel ball professional production manufacturer, it is quite necessary to understand the steel ball that colleague manufacturer produces
Quality, mends the shortest purpose reaching to take other people length.
In addition to the CN104101538A having already mentioned above, it is also shown in all about steel ball test in disclosed patent documentation
The technical information of device, as CN102435517A recommendation has " high-speed underwater steel ball abrasion tester ", and for example
CN103344400A is provided with " a kind of steel ball test device carrying out corrosion-resistant test ", etc..
Although being not limited to patent exemplified above each there is corresponding technique effect, but there is inclined face property and blind
The logical fraud of mesh, specifically, the teaching of aforementioned patent does not have practicality, because its test is to depart from steel ball in military service ring
Carry out under border, the specific aim relative mistake of the data obtained.
And then as is known in the industry, the Service Environment of steel ball is different, its abrasion performance requires also different, to production technology and right
The requirement of material the most difference.But for the steel ball used under identical Service Environment, its abrasion performance requires should be as far as possible
It is consistent, is generally not allowed and bigger change or error occur between the steel ball of different batches.Therefore simulation steel ball is on active service
Environment carries out wear test and is only the desired aforementioned practicality test of steel ball production firm steel ball.But it is public up to now
Being showed no the enlightenment of all corresponding technology in the professional journals opened and China and foreign countries' patent documentation, technical scheme described below is just
Produce under this background.
Summary of the invention
The task of the present invention is to provide one to contribute to making steel ball carry out testing and using and keep away under Simulated Service Environment
Exempt from blindness embody good specific aim simultaneously and obtained the steel ball abrasion test machine of real test data.
The task of the present invention is performed by, and a kind of steel ball abrasion test machine, including a body feed tank casing, at this thing
The front side of hopper casing or rear side are equipped with a residue-removing door；Single-revolution axle and single-revolution axle drive mechanism, the left end of gyroaxis turns
It is bearing on the left tank wall of described body feed tank casing dynamicly and is stretched over outside the casing chamber of body feed tank casing and described gyroaxis
Drive mechanism is in transmission connection, and the middle part of gyroaxis is positioned at box cavity and is provided with space state at the middle part of this gyroaxis
Test ball fixes bar, and the right-hand member of gyroaxis is rotatably supported on the right tank wall of body feed tank casing, and gyroaxis drive mechanism exists
Position corresponding to the left end of described gyroaxis is arranged on body feed tank casing.
In a specific embodiment of the present invention, at the middle part of described gyroaxis and corresponding to described tested steel
Ball is fixed the position of bar and is offered the test ball that quantity fixes the quantity of bar equal with test ball and fix bar screw, in test
Steel ball is fixed bar and is constituted towards one end of gyroaxis and fix bar thread head, and this fixing bar thread head and test ball fix bar
Screw screw thread connects, and in a state of use, fixes bar at test ball and constitutes away from one end of gyroaxis and have a test ball even
Connect thread head.
In another specific embodiment of the present invention, rear side left end in the bottom of described body feed tank casing and
Position corresponding to described gyroaxis drive mechanism is extended with a motor bearing wing plate, and described gyroaxis drive mechanism includes electricity
Machine, drivewheel, driven pulley and transmission band, motor bearing is also fixed on motor bearing wing plate, and drivewheel is fixed on the electricity of motor
On arbor, driven pulley is fixed on the left end of described gyroaxis, and one end of transmission band is nested with on drivewheel, the other end be nested with from
On driving wheel.
In another specific embodiment of the present invention, described drivewheel and driven pulley are belt pulley, described biography
Dynamic band is belt.
In another specific embodiment of the present invention, described drivewheel and driven pulley are chain, described transmission
Band is chain.
Also having in a specific embodiment in the present invention, is respectively equipped with one in four corners of described body feed tank casing
Body feed tank support foot, makes body feed tank casing soar in terrace by this body feed tank support foot.
In more and in a specific embodiment of the present invention, at the top of described body feed tank casing and surround case case
The surrounding of body to extend out be provided with one material case lid coordinate stack limit, corresponding to this material case lid coordinate stack limit position be equipped with one
Material case lid.
The present invention's and then in a specific embodiment, the front side on stack limit is coordinated to be fixed with one at described material case lid
To box cover lock buckle shaft seat, between this is to box cover lock buckle shaft seat, hub setting has a box cover lock buckle shaft, at the middle part of this box cover lock buckle shaft
Connect the lower end having a locking nut screw rod, be equipped with a locking nut in the upper end of this locking nut screw rod, at described material
The front side of case lid and offer screw rod slot to make way in the position corresponding to locking nut screw rod, the rear side of material case lid passes through one
Hinged with the rear side that described material case lid coordinates stack limit to case lid hinge.
In the most more and in a specific embodiment of the present invention, the diapire in the casing chamber of described body feed tank casing is opened
It is provided with an osculum, is fixed with a filter screen in the position corresponding to this osculum by filter screen pressing plate, at body feed tank casing
Bottom and be fixed with a drain connection in the position corresponding to osculum, this drain connection is equipped an electromagnetism
Valve.
In again and then in a specific embodiment of the present invention, described body feed tank lid is constituted have a water jacket every
Chamber, offers the hole for water spraying for spraying water to described box cavity with high density state on the diapire of this water jacket separate space, and at water
Having connected a water inlet tube interface on the roof of set separate space, this water inlet tube interface is connected with watering by pipeline.
The technical scheme that the present invention provides is fixed owing in use steel ball and test ball being fixed bar, and at casing
Intracavity puts into the material identical with the Service Environment of steel ball, thus steel ball can be made to test under Simulated Service Environment, not only
Blindness can be avoided, embody good specific aim simultaneously, and acquisition truthful data can be ensured.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is the sectional view of Fig. 1.
Detailed description of the invention
In order to be more clearly understood from technical spirit and the beneficial effect of the present invention, applicant is below with embodiment
Mode elaborate, but the description to embodiment is not the restriction to the present invention program, any according to structure of the present invention
Pro forma rather than the substantial equivalent transformation that is only done by think of is regarded as technical scheme category.
The most every relate to upper and lower, left and right, the directivity of front and rear or claim directionality concept be all
For Fig. 1 and Fig. 2 location state, thus the spy to the technical scheme that the present invention provides can not be understood as
Do not limit.
Embodiment 1:
Refer to Fig. 1 and Fig. 2, it is shown that a body feed tank casing 1, be equipped with a residue-removing door 11 in the front side of this body feed tank casing 1,
This feeding gate 11 also can be disposed in the rear side of body feed tank casing 1；Show single-revolution axle 2 and single-revolution axle drive mechanism 3, revolution
The left end of axle 2 is rotatably supported on the left tank wall of afore-mentioned materials box body 1 by left shaft holder 23 and is stretched over body feed tank
The casing chamber 12 of casing 1 is outer to be in transmission connection with aforementioned gyroaxis drive mechanism 3, and the middle part of gyroaxis 2 is positioned at casing chamber 12 also
And at the middle part of this gyroaxis 2, space state is provided with test ball and fixes bar 21, the right-hand member of gyroaxis 2 passes through right bearing seat
24 are rotatably supported on the right tank wall of body feed tank casing 1, and gyroaxis drive mechanism 3 is at the left end corresponding to aforementioned gyroaxis 2
Position be arranged on body feed tank casing 1.
The middle part of aforementioned gyroaxis 2 and offer in the position fixing bar 21 corresponding to aforementioned test ball quantity with
The test ball that test ball fixes the quantity of bar 21 equal fixes bar screw 22, fixes bar 21 towards gyroaxis at test ball
One end of 2 is constituted fixes bar thread head 211, and this fixing bar thread head 211 and test ball are fixed bar screw 22 screw thread and joined
Connect.In a state of use, test ball fix bar 21 away from gyroaxis 2 one end constitute have one test ball connect thread head
212, when the most i.e. test ball 5 being tested, on test ball 5, first it is drilled with a test ball fixing threaded hole 51, then will
Test ball fixing threaded hole 51 is connected thread head 212 with test ball to be fixed.Test ball 5 can also be fixed with test ball
Bar is welded and fixed away from one end of gyroaxis 2, can save in this case aforesaid test ball connect thread head 212 with
And test ball fixing threaded hole 51.
Rear side left end in the bottom of afore-mentioned materials box body 1 and in the position corresponding to aforementioned gyroaxis drive mechanism 3
Putting and be extended with a motor bearing wing plate 13, aforesaid gyroaxis drive mechanism 3 includes motor 31, drivewheel 32, driven pulley 33 and
Transmission band 34, motor 31 supports and is fixed on motor bearing wing plate 13, also show in FIG for the motor by motor 31
Seat fixes screw 312 with the fixing motor of motor bearing wing plate 13, and drivewheel 32 is fixed on the motor shaft of motor 31 by flat key
On 321, driven pulley 33 is fixed on the left end of aforementioned gyroaxis 2 by flat key, and one end of transmission band 34 is nested with on drivewheel 32,
The other end is nested with on driven pulley 33.
In the present embodiment, aforesaid drivewheel 32 and driven pulley 33 are belt pulley, and aforesaid transmission band 34 is belt.But
It is if replacing belt pulley with sprocket wheel, to replace belt with chain, then equivalence should be considered as simultaneously.
Respectively it is equipped with a body feed tank support foot 14 in four corners of afore-mentioned materials box body 1, supports by this body feed tank
Foot 14 and make body feed tank casing 1 soar in terrace.
Surrounding at the top of afore-mentioned materials box body 1 and surround box body 1 is provided with a material case lid and joins to extending out
Close stack limit 15, be equipped with a material case lid 4 coordinating the position on stack limit 15 corresponding to this material case lid.
Preferably, the front side on stack limit 15 is coordinated to be welded with a pair box cover lock buckle shaft seat 151 at afore-mentioned materials case lid,
This has a box cover lock buckle shaft 1511 to hub setting between box cover lock buckle shaft seat 151, and connecting at the middle part of this box cover lock buckle shaft 1511 has
The lower end of one locking nut screw rod 1512, is equipped with a locking nut 15121, front in the upper end of this locking nut screw rod 1512
State the front side of material case lid 4 and offer screw rod slot to make way 41, body feed tank in the position corresponding to locking nut screw rod 1512
The rear side that the rear side of lid 4 coordinates stack limit 15 by a pair case lid hinge 42 with afore-mentioned materials case lid is hinged.
As preferred scheme, can afore-mentioned materials case lid coordinate stack limit 15 towards on side offer a seal groove
152, in this seal groove 152, it is embedded a sealing ring 1521, so that the material case lid of material case lid 4 and body feed tank casing 1 is joined
Close and form good sealing between the upper surface on stack limit 15.
When locking nut screw rod 1512 is in the position of screw rod slot to make way 41 and is screwed by locking nut 15121, thing
Hopper lid 4 is just in the state closed with body feed tank casing 1 phase lid, and vice versa.
As shown in the above description, the material 6 of the present embodiment simulation is dryness material.
Embodiment 2:
The diapire in the casing chamber 12 of afore-mentioned materials box body 1 offers an osculum 121, corresponding to this osculum
The position of 121 is fixed with a filter screen 1211 by filter screen pressing plate 12111, in the bottom of body feed tank casing 1 and corresponding to row
The position in water hole 121 is fixed with a drain connection 16, is equipped with an electromagnetic valve 161 on this drain connection 16.
Aforesaid material case lid 4 is constituted and has a water jacket separate space 43, with intensive shape on the diapire of this water jacket separate space 43
State offers for the hole for water spraying 431 of water spray in aforementioned casing chamber 12, and has connected one on the roof of water jacket separate space 43 and entered
Waterpipe jointing 432, this water inlet tube interface 432 is connected with watering by pipeline.From the present embodiment, test ball 5 is simulated
Material 6 be moist or thick material.Remaining is all with the description to embodiment 1.
Embodiment 3:
Asking for an interview Fig. 2, the rotary encoder 7 that the right-hand member and of aforementioned gyroaxis 2 is set up matches, and this rotary encoder 7 is arranged
On rotary encoder seat 71, rotary encoder seat 71 is fixed by the right tank wall of fixed mount 711 with body feed tank casing 1.Revolution
The rotating cycle of axle 2 is obtained by rotary encoder 7 and flows to the electric control box with display screen.Remaining is all with to embodiment
The description of 1.
Application examples 1:
Continuing with seeing Fig. 1 and Fig. 2, applicant describes the use of the present invention, first test ball 5 and test ball is fixed bar 21
Carry out threaded, namely test ball fixing threaded hole 51 is connected with test ball thread head 212 threaded engagement and fixes, then
Test ball is fixed bar 21 weigh together with test ball 5, it is also possible to individually weighing test ball 5, the weight of this weighing is
Initial weight, and perform record, then test ball is fixed bar 21 in the position fixing bar screw 22 corresponding to test ball
Fix with gyroaxis 2.Then by material such as broken ore leading-in box body cavity 12, closure hopper lid 4(also can not close body feed tank
Lid 4), connect the working power of gyroaxis drive mechanism 3, motor 31 works, motor shaft 311 drive drivewheel 32, by actively
Wheel 32 drive transmission band 34, is driven driven pulley 33 by transmission band 34, driven pulley 33 drives gyroaxis 2, by gyroaxis 2 by surveying
Examination steel ball is fixed bar 21 and is driven test ball 5, makes test ball 5 and material friction.Through being wanted under the rotating speed setting motor 31
Shut down after the time asked such as 38-72h, test ball is fixed bar 21 and unloads from gyroaxis 2 together with test ball 5, again claim
Weight, deducts the weight again weighed by aforesaid initial weight, just may know that the abrasion of test ball 5 according to the weight difference obtained
Situation, is analyzed steel ball production technology, steel ball material etc. in order to steel ball production firm.Additionally other manufacturer can be produced
Steel ball with oneself produce steel ball use aforesaid way carry out contrast test, in order to find gap, promote steel ball quality.By this
Application examples understands, and the grinding that the steel ball representated by aforesaid test ball 5 is applied in the future to ore charge and for dry method (is ground
Carefully), thus there is strong point with strong points.When material 6 in casing chamber 12 to be cleared out, can implement by opening residue-removing door 11
Clear material.
Application examples 2:
When material case lid 4 is in closedown, through water supply line, water is introduced water jacket separate space 43 through water inlet tube interface 432,
Sprayed into the material 6 in casing chamber 12 by hole for water spraying 431, test terminates rear opens solenoid valve 161, is put by the water in casing chamber 12
Remove.Remaining is all with the description of application examples 1.From this application examples 2, it is right that the steel ball representated by test ball 5 is applied in the future
The ore charge of hygrometric state grinds, thus has strong point with strong points equally.
Application examples 3:
Referring to Fig. 2, owing to rotary encoder 7 matches with gyroaxis, thus the spin data of gyroaxis 2 is by rotating volume
Code device 7 obtains and is transferred to the electric controller with display screen, and remaining is all with the description to application examples 1 or 2.
In sum, the technical scheme that the present invention provides compensate for the shortcoming in prior art, has favorably accomplished invention
Task, has cashed the technique effect referred in applicant's superincumbent technique effect hurdle faithfully.
Claims (10)
1. a steel ball abrasion test machine, it is characterised in that include a body feed tank casing (1), before this body feed tank casing (1)
Side or rear side are equipped with a residue-removing door (11)；Single-revolution axle (2) and single-revolution axle drive mechanism (3), the left end of gyroaxis (2) turns
Be bearing on the left tank wall of described body feed tank casing (1) dynamicly and be stretched over the casing chamber (12) of body feed tank casing (1) outward with
Described gyroaxis drive mechanism (3) is in transmission connection, and the middle part of gyroaxis (2) is positioned at casing chamber (12) and at this gyroaxis
(2) middle part is provided with test ball with space state and fixes bar (21), and the right-hand member of gyroaxis (2) is rotatably supported at body feed tank
On the right tank wall of casing (1), gyroaxis drive mechanism (3) is arranged on thing in the position of the left end corresponding to described gyroaxis (2)
On hopper casing (1).
Steel ball the most according to claim 1 abrasion test machine, it is characterised in that the middle part of described gyroaxis (2) and
Fix the position of bar (21) corresponding to described test ball to offer quantity fix the quantity of bar (21) with test ball equal
Test ball fixes bar screw (22), test ball fix bar (21) towards gyroaxis (2) one end constitute fix bar
Thread head (211), this fixing bar thread head (211) fixes bar screw (22) screw thread with test ball and connects, in a state of use,
Test ball fix bar (21) away from gyroaxis (2) one end constitute have one test ball connect thread head (212).
Steel ball the most according to claim 1 abrasion test machine, it is characterised in that in the bottom of described body feed tank casing (1)
Rear side left end and be extended with a motor bearing wing plate (13) in the position corresponding to described gyroaxis drive mechanism (3), described
Gyroaxis drive mechanism (3) include motor (31), drivewheel (32), driven pulley (33) and transmission band (34), motor (31)
Holding and be fixed on motor bearing wing plate (13), drivewheel (32) is fixed on the motor shaft (321) of motor (31), driven pulley
(33) being fixed on the left end of described gyroaxis (2), one end of transmission band (34) is nested with on drivewheel (32), and the other end is nested with
On driven pulley (33).
Steel ball the most according to claim 3 abrasion test machine, it is characterised in that described drivewheel (32) and driven pulley
(33) being belt pulley, described transmission band (34) is belt.
Steel ball the most according to claim 3 abrasion test machine, it is characterised in that described drivewheel (32) and driven pulley
(33) being chain, described transmission band (34) is chain.
6. wear away test machine according to the steel ball described in claim 1 or 3, it is characterised in that the four of described body feed tank casing (1)
Individual corner is respectively equipped with a body feed tank support foot (14), makes body feed tank casing (1) soar by this body feed tank support foot (14)
In terrace.
Steel ball the most according to claim 6 abrasion test machine, it is characterised in that on the top of described body feed tank casing (1) also
And the surrounding of surround box body (1) to extend out be provided with one material case lid coordinate stack limit (15), joining corresponding to this material case lid
The position closing stack limit (15) is equipped with a material case lid (4).
Steel ball the most according to claim 7 abrasion test machine, it is characterised in that coordinate stack limit (15) at described material case lid
Front side be fixed with a pair box cover lock buckle shaft seat (151), between this is to box cover lock buckle shaft seat (151), hub setting has a case lid snap close
Axle (1511), connects at the middle part of this box cover lock buckle shaft (1511) and has the lower end of a locking nut screw rod (1512), in this locking
The upper end of nut-screw (1512) is equipped with a locking nut (15121), in the front side of described material case lid (4) and in correspondence
Offer screw rod slot to make way (41) in the position of locking nut screw rod (1512), the rear side of material case lid (4) passes through a pair case lid
Hinge (42) coordinates the rear side on stack limit (15) hinged with described material case lid.
Steel ball the most according to claim 1 abrasion test machine, it is characterised in that in the casing chamber of described body feed tank casing (1)
(12) osculum (121) is offered on diapire, in the position corresponding to this osculum (121) by filter screen pressing plate
(12111) filter screen (1211) it is fixed with, in the bottom of body feed tank casing (1) and in the position corresponding to osculum (121)
It is fixed with a drain connection (16), this drain connection (16) is equipped an electromagnetic valve (161).
10. wear away test machine according to the steel ball described in claim 1 or 7 or 8, it is characterised in that at described material case lid (4)
Upper composition has a water jacket separate space (43), offers for described casing with high density state on the diapire of this water jacket separate space (43)
The hole for water spraying (431) of water spray in chamber (12), and on the roof of water jacket separate space (43), connected a water inlet tube interface (432), should
Water inlet tube interface (432) is connected with watering by pipeline.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948339.3A CN106290039B (en) | 2016-10-26 | 2016-10-26 | Steel ball abrasion tester |
| PCT/CN2017/088672 WO2018076718A1 (en) | 2016-10-26 | 2017-06-16 | Steel ball abrasion testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610948339.3A CN106290039B (en) | 2016-10-26 | 2016-10-26 | Steel ball abrasion tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290039A true CN106290039A (en) | 2017-01-04 |
| CN106290039B CN106290039B (en) | 2023-06-02 |
Family
ID=57720460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610948339.3A Active CN106290039B (en) | 2016-10-26 | 2016-10-26 | Steel ball abrasion tester |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106290039B (en) |
| WO (1) | WO2018076718A1 (en) |
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| CN106769481A (en) * | 2017-02-28 | 2017-05-31 | 山东鲲鹏新材料科技股份有限公司 | A kind of method for determining wearable ceramic ball crushing strength and abrasion |
| WO2018076718A1 (en) * | 2016-10-26 | 2018-05-03 | 常熟非凡新材股份有限公司 | Steel ball abrasion testing machine |
| CN108458922A (en) * | 2018-05-10 | 2018-08-28 | 芜湖市黄山松工业地坪新材料有限公司 | Industry ground slab friction performance testing device |
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| CN109827895A (en) * | 2019-03-14 | 2019-05-31 | 贵州大学 | A kind of salt air corrosion experimental provision and its operating method for material metal experiment |
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| CN108458922A (en) * | 2018-05-10 | 2018-08-28 | 芜湖市黄山松工业地坪新材料有限公司 | Industry ground slab friction performance testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106290039B (en) | 2023-06-02 |
| WO2018076718A1 (en) | 2018-05-03 |
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