CN205580877U - Multi -functional transverse strength test device - Google Patents
Multi -functional transverse strength test device Download PDFInfo
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- CN205580877U CN205580877U CN201620333318.6U CN201620333318U CN205580877U CN 205580877 U CN205580877 U CN 205580877U CN 201620333318 U CN201620333318 U CN 201620333318U CN 205580877 U CN205580877 U CN 205580877U
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Abstract
The utility model discloses a multi -functional transverse strength test device, including the base, locate slide rail on the base upper surface, locate the spliced pole on the under base surface and be used for corresponding at least one a compression roller device or a roller device of an installation compression roller or a roller the lateral surface of slide rail is equipped with along the scale of slide rail length direction extension, and the scale on the scale has on the top surface of slide rail along the spout of its length direction extension for the zero graduation just scales up to the both ends symmetry in the middle of the scale, and a compression roller device or a roller device demountable installation can follow the spout and slide on the spout, and a compression roller device perhaps roller device has the pointer that is used for instructing scale on the scale. The utility model discloses simple structure, low in manufacturing cost, durability be good, easy and simple to handle, can improve test efficiency greatly, cut down expenses by a wide margin, can satisfy multiple building material test requirement commonly used, and the sample that can realize different kinds, different specification and dimension is tested on concentrating on an instrument.
Description
Technical field
This utility model relates to a kind of rupture strength assay device, tests particularly to a kind of multi-functional rupture strength
Device.
Background technology
Rupture strength reflects limit when construction material unit are bears moment of flexure and fractures stress, strong also known as bending resistance
Degree, bending strength, breaking load etc., be an important mechanical performance index.
Common building material, such as the stone materials such as granite, marble, sandstone, limestone, autoclaved lime-sand brick, steaming
The wall-building bricks such as pressing fly ash brick, concrete road pavement brick, Thistle board, decorated gypsum board, calcium silicate board etc. are built
Building sheet material, curtain wall ceramic plate, gypsum block, foam glass etc. is respectively provided with rupture strength requirement.
Owing to architectural materials mechanics performance, specification are different, rupture strength test method is also not quite similar.Ratio
As stone material rupture strength test requirements document is: 4 loadings, undersetting span L=10 × thickness of sample, upper bracket
Span L/2.For another example the test requirements document of wall-building brick rupture strength is: 3 loadings, and upper lower compression roller radius requirement is
15mm, lower roller should have one for hinged fixing.If according to test method, the dimensions of various materials,
Each being equipped with corresponding instrument equipment, instrument quantity can be the hugest, does not only take up bigger test chamber space, and
And the acquisition expenses of instrument and equipment is also a high spending, also it is not easy to the management of test chamber instrument simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, low cost of manufacture, ruggedness is good, operation is simple
Just, be greatly improved test efficiency, significantly cut down expenses, disclosure satisfy that the multiple common building testing of materials want
The multi-functional rupture strength assay device asked, can realize variety classes, the sample of different specification size concentrates on one
Test on platform instrument.
Above-mentioned purpose of the present utility model is realized by following technical measures: a kind of multi-functional rupture strength tries
Experiment device, it is characterised in that: include base, the slide rail being located on base upper surface, be located in base lower surface
Connect post and pressure roller or at least one press-roller device of roller or a roller arrangement be installed, in institute for correspondence
The lateral surface stating slide rail is provided with the scale extended along slide rail length direction, and the scale on scale is in the middle of scale
Zero graduation and to two ends symmetry be incremented by, the end face of described slide rail has the chute extended along its length, institute
State press-roller device or roller arrangement is removably mounted on chute and can along slide, described press-roller device or
Person props up roller arrangement to be had for indicating the pointer at scale high scale.
This utility model uses the chute on slide rail to be slidably matched with at least one press-roller device or a roller arrangement,
Span is big, goes for the material of different specification size, and can according to pressure roller or a roller not
Same size, selects different press-roller devices or a roller arrangement, to meet the specification requirement of test specimen,
Press-roller device or the dismounting of roller arrangement and change the most simple and convenient, to be applicable to the anti-folding of variety classes sample
Strength test demand, it is possible to realize variety classes, the sample of different specification size concentrates on and carries out on an instrument
Test, and this utility model simple in construction, low cost of manufacture, ruggedness are good, easy and simple to handle, be greatly improved
Test efficiency.It addition, this utility model is applied widely, many this standard can be met, save for test chamber
Test site, has been also convenient for instrument management and has saved fixed assets spending.
As a kind of embodiment of the present utility model, described roller arrangement is fixed roller arrangement, described solid
Fixed pattern prop up roller arrangement mainly by block hold-down support, gauge length screens, fastening nut, screw rod and pin sheet, be used for
Installing the mounting groove of roller and a pair limiting component composition, described chute is V-shaped groove, described hold-down support by
First slide block of bottom and the first mounting blocks composition on top, the bottom of described first slide block and described slide
Coordinating, described pin sheet is vertically arranged along the inner, bottom of described first slide block, and between described pin sheet and chute
Having gap, described screw rod passes the one side of the first slider bottom and is tightened by fastening nut and pushed against by pin sheet
To position hold-down support on chute, described gauge length screens is fixed on the another side of the first slider bottom downwards
Stretch out pointer to indicate on the scale of scale, described mounting groove longitudinally through the first mounting blocks end face thus the
The side of one mounting blocks forms perforate, is provided with for limiting on the side of described first mounting blocks and near perforate
Prop up the limiting component that roller rotates.
As another embodiment of the present utility model, described roller arrangement is that radial type props up roller arrangement, described
Press-roller device is radial type press-roller device, and articulated roller arrangement and radial type press-roller device are all main by block
The pivoting support of shape, gauge length screens, fastening nut, screw rod and pin sheet, for installing roller or an installation for pressure roller
Groove and a pair limiting component composition, described chute is V-shaped groove, and described pivoting support is by the second slide block of bottom
With the second mounting blocks composition on top, the bottom of described second slide block coordinates with described slide, described pin sheet
Vertically arranged along the inner, bottom of described second slide block, and between described pin sheet and chute, there is gap, described
Screw rod passes the one side of the second slider bottom and is tightened by tighting a bolt and be pushed against on chute by pin sheet with fixed
Position pivoting support, described gauge length screens is fixed on the another side of the second slider bottom and extends downwardly from pointer and refers to
Show on the scale of scale, described mounting groove longitudinally through the second mounting blocks end face thus at the second mounting blocks
Form perforate on side, be provided with for limiting roller or a pressure roller in the side of described second mounting blocks and near perforate
The limiting component rotated；Described second mounting blocks and the second slide block for being articulated and connected so that the second mounting blocks can drive
Pressure roller or a roller swing and adjust to correct position.
As a kind of embodiment of the present utility model, described base, the slide rail with scale and connection post composition
Under hold lotus device, under to hold the span of lotus device be 200～900mm, described connection post is provided with fixture, institute
State connection post to be arranged on universal test machine platform, and fixed by fixture.
As a kind of embodiment of the present utility model, described fixture uses pin, and described pin inserts omnipotent
Pin hole on testing machine platform is fixed.
As a kind of improvement of the present utility model, set up between described base and connection post at the bottom of the steel of a tabular
Torr, described collet respectively with base and be connected post connection.
As another embodiment of the present utility model, described base, the slide rail with scale and connection post group
Loading system on one-tenth, the span of upper loading system is 0～300mm, and described connection post is provided with fixture, institute
State connection post to be arranged on universal testing machine crossbeam, and fixed by fixture.
As a kind of embodiment of the present utility model, described fixture uses pin, and described pin inserts omnipotent
Pin hole on testing machine crossbeam is fixed.
As a kind of embodiment of the present utility model, the cross section of described mounting groove is semicircle, roller or pressure
Roller is cylinder, and a roller or the face of cylinder of pressure roller fit tightly with the internal face of mounting groove.
As a kind of embodiment of the present utility model, described limiting component is by screw and the gear being set on screw
Sheet forms, and described screw penetrates the first mounting blocks or the second mounting blocks makes catch spacing at pressure roller or the two of a roller
To avoid pressure roller or a roller to rotate on end face.
Compared with prior art, this utility model has a following significantly effect:
Span the most of the present utility model is big, under hold the span of lotus device up to 200～900mm, upper loading
The span of device is up to 0～300mm, and therefore, this utility model is applicable to the material of different specification size.
(2) this utility model has different-diameter and the pressure roller of different length or a roller, has different-diameter half simultaneously
The pressure of a circular mounting groove/roller arrangement, therefore, this utility model can be torn open according to the specification of tested sample
Unload and change, simple and convenient, it is possible to be applicable to variety classes sample rupture strength test demand.
(3) this utility model test operation is easy, quick, and this technique effect is in the bending test of different cultivars sample
Switching in particularly evident.
(4) this utility model simple in construction, cheap, ruggedness is good, and this utility model has passed through measurement verification
Qualified, use the several years, data are accurate, and assay device is stablized durable, and fault-free occurs.
(5) this utility model adds carried convenient, uses CMT5105 microcomputer controlled electronic universal tester as loading work
Tool, this automation equipment degree is high, precision 0.5 grade, and detection data are accurately and reliably.This testing machine is equipped with two
Force value sensor, respectively 0-10KN, 0-100KN, all by metrological service's assay approval.Difference can be realized
The rupture strength of requirement of strength loads.
(6) this utility model is applied widely, meets many this standard, saves test site, convenience for test chamber
Instrument management, save fixed assets spending.
Accompanying drawing explanation
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is that this utility model embodiment is held lotus device for 1 time and is arranged on down hold on lotus device fixed
Roller arrangement and radial type prop up the front view of roller arrangement；
Fig. 2 is that this utility model embodiment is held lotus device for 1 time and is arranged on down fixed the roller held on lotus device
Device and radial type prop up the top view of roller arrangement；
Fig. 3 is loading system and a pair radial type being arranged on loading system in this utility model embodiment 2
The front view of press-roller device；
Fig. 4 is loading system and a pair radial type being arranged on loading system in this utility model embodiment 2
The top view of press-roller device.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, 2, be a kind of multi-functional rupture strength assay device of this utility model, including base 1,
It is located at the slide rail 2 on base 1 upper surface, the connection post 3 being located on base 1 lower surface and installs for correspondence
Pressure roller or at least one press-roller device of roller 4 or a roller arrangement, the lateral surface at slide rail 2 be provided with along
The scale 5 that slide rail 2 length direction extends, the scale on scale 5 is zero graduation 6 and to two in the middle of the scale 5
End symmetry is incremented by, and the end face of slide rail 2 has a pair the chute 18 extended along its length, press-roller device
Or a roller arrangement is removably mounted on chute 18 and can slide along chute 18, press-roller device or a roller dress
Put and have for indicating the pointer 7 at scale high scale.
In the present embodiment, base 1, there is the slide rail 2 of scale 5, connect post 3 and the steel collet of tabular
Holding lotus device under 19 compositions, steel collet 19 is arranged on base 1 and connects between post 3, steel collet 19
Respectively with base 1 and be connected post 3 and connect.Under to hold the span of lotus device be 200～900mm, connect on post 3
Being provided with fixture, connect post 3 and be arranged on universal test machine platform, and fixed by fixture, fixture is concrete
Using pin 8, pin 8 inserts in the pin hole on universal test machine platform fixing.
In the present embodiment, using two roller arrangements, one of them roller arrangement is fixed roller arrangement,
Fixed roller arrangement is mainly by block hold-down support, gauge length screens 10, fastening nut 11, screw rod and pin
Sheet 20, the mounting groove 12 propping up roller for installation and a pair limiting component composition, chute 18 is V-shaped groove, Gu
Determine bearing to be made up of the first slide block 13 of bottom and first mounting blocks 14 on top, the bottom of the first slide block 13
Being slidably matched with chute 18, pin sheet 20 is vertically arranged along the inner, bottom of the first slide block 13, and pin sheet 20
And there is between chute 18 gap, screw rod is through the one side bottom the first slide block 13 and by fastening nut 11
Tightening and be pushed against pin sheet 20 on chute 18 to position hold-down support, it is sliding that gauge length screens 10 is fixed on first
Another side bottom block 13 also extends downwardly from pointer 7 and indicates on the scale of scale 5, and mounting groove 12 is longitudinally
Run through the end face of the first mounting blocks 14 thus on the side of the first mounting blocks 14, form perforate, install first
It is provided with for limiting the limiting component that a roller rotates on the side of block 14 and near perforate.In the present embodiment,
The cross section of mounting groove 12 is semicircle, and a roller or pressure roller 4 are cylinder, roller or the face of cylinder of pressure roller 4
Fit tightly with the internal face of mounting groove 12.Limiting component is specifically by screw 15 be set on screw 15
Catch forms, screw 15 penetrate the first mounting blocks 14 make catch spacing in the both ends of the surface of roller 4 to avoid
Prop up roller 4 to rotate.
Another roller arrangement is that radial type props up roller arrangement, and radial type props up roller arrangement mainly by block hinged
Seat, gauge length screens 10, fastening nut 11, screw rod and pin sheet 20, for installing roller or a mounting groove for pressure roller
12 and a pair limiting component composition, chute 18 is V-shaped groove, and pivoting support is by the second slide block 16 He of bottom
Second mounting blocks 17 on top forms, and the bottom of the second slide block 16 is slidably matched with chute 18, sells sheet 20
Vertically arranged along the inner, bottom of the second slide block 16, and between pin sheet 20 and chute 18, there is gap, spiral shell
Bar is through the one side bottom the second slide block 16 and tightened by fastening nut 11 and pin sheet 20 is pushed against chute
To position pivoting support on 18, gauge length screens 10 be fixed on the another side bottom the second slide block 16 and to
Under stretch out pointer 7 and indicate on the scale of scale 5, mounting groove 12 is longitudinally through the end face of the second mounting blocks 17
Thus on the side of the second mounting blocks 17, form perforate, set in the side of the second mounting blocks 17 and near perforate
Limited location parts；Second slide block 16 is articulated and connected by jointed shaft 19 and the second mounting blocks 17 so that second pacifies
Dress block 17 band dynamic pressure roller or roller 4 can swing and adjust to correct position.In the present embodiment, mounting groove
The cross section of 12 is semicircle, and a roller or pressure roller 4 are cylinder, a roller or the face of cylinder of pressure roller 4 and installation
The internal face of groove 12 fits tightly.Limiting component is made up of screw 15 and the catch being set on screw 15,
Screw 15 penetrate the second mounting blocks 17 make catch spacing in the both ends of the surface of pressure roller or roller 4 to avoid pressure roller
Or a roller 4 rotates.
Embodiment 2
As shown in Figure 3,4, the present embodiment is with the difference of embodiment 1: base 1, have scale 5
Slide rail 2 and connect the upper loading system of post 3 composition, the span of upper loading system is 0～300mm, connects post 3
Being provided with fixture, connect post 3 and be arranged on universal testing machine crossbeam, and fixed by fixture, fixture has
Body uses pin, and pin inserts in the pin hole on universal testing machine crossbeam fixing.
In the present embodiment, using two press-roller devices, two press-roller devices are all radial type press-roller devices, hinge
Connecing formula press-roller device, prop up the structure of roller arrangement with radial type identical, is not repeated herein.
It is as follows that this utility model meets standard:
GB/T 18601-2009 Specification for Natural Granite for Building Slab
GB/T 19766-2005 natural marble building board
GB/T 23452-2009 natural sandstone building board
GB/T 23453-2009 natural limestone building board
GB/T 9966.2-2001 natural ornamental stone test method part 2
GB 11945-1999 autoclaved lime-sand brick
JC/T 239-2014 autoclaved fly ash brick
GB/T 2542-2012 Test methods for wall bricks
GB 28635-2012 concrete road pavement brick
GB/T 9775-2008-T Thistle board
JC/T 799-2007 decorated gypsum board
JC/T 564.1-2008 asbestos-free calcium silicate board
JC/T 564.2-2008 fiber reinforced calcium silicate board part 2: chrysotile calcium silicate board
JG/T 324-2011 building curtain wall ceramic plate
JC/T 698-2010 gypsum block
JC/T 647-2014 foam glass insulating product
Installation of the present utility model and work process are as follows:
1, according to the standard-required of test material, 3 loadings, 4 loadings are selected；Select fixed, hinge
Connect and under formula, hold lotus device；According to the specification of material, select pressure roller diameter, length；Calculate span, estimation
Required load, selects sensor or the sensor of 0-100KN of universal testing machine 0-10KN range.
2, combination installs loading system and press-roller device, is arranged on CMT5105 universal testing machine afterwards horizontal
Below beam, fix with pin.
3, combination installs down and holds lotus device and a roller arrangement, is arranged on CMT5105 universal testing machine afterwards and puts down
On platform, fix with pin.
4, adjust span according to test requirements document, notice that zero point is symmetrical.
5, Testing Software is opened on computers, editor's test loading scheme, open CMT5105 universal testing machine
Power supply, Testing Software force value resets；Start to load, to sample rupture failure, record data, calculate anti-folding strong
Degree.
Embodiment of the present utility model is not limited to this, according to foregoing of the present utility model, according to this area
Ordinary technical knowledge and customary means, of the present utility model under hold lotus device, upper loading system, fixed
The concrete structure etc. that roller arrangement, radial type prop up roller/press-roller device, span adjusts also has other embodiment,
Therefore, this utility model can also be made the amendment of other various ways, replace or change, and all falls within this practicality
Within the scope of novel rights protection.
Claims (10)
1. a multi-functional rupture strength assay device, it is characterised in that: include base, be located at table on base
Slide rail on face, be located in base lower surface connect post and for correspondence, pressure roller or at least the one of a roller be installed
Individual press-roller device or a roller arrangement, the lateral surface at described slide rail is provided with the mark extended along slide rail length direction
Chi, the scale on scale is zero graduation in the middle of scale and is incremented by two ends symmetry, the end face of described slide rail has
The chute extended along its length, described press-roller device or a roller arrangement is had to be removably mounted at chute a pair
Upper and can be along slide, described press-roller device or a roller arrangement have for indicating the finger at scale high scale
Pin.
Multi-functional rupture strength assay device the most according to claim 1, it is characterised in that: described
Roller arrangement is fixed roller arrangement, and described fixed roller arrangement is mainly by block hold-down support, gauge length card
Position, fastening nut, screw rod and pin sheet, the mounting groove propping up roller for installation and a pair limiting component composition, described
Chute is V-shaped groove, and described hold-down support is made up of the first slide block of bottom and first mounting blocks on top, the
The bottom of one slide block coordinates with described slide, and described pin sheet is inner vertical along the bottom of described first slide block
Arranging, and have gap between described pin sheet and chute, described screw rod passes the one side of the first slider bottom also
Being tightened by tighting a bolt and be pushed against pin sheet on chute to position hold-down support, described gauge length screens is fixed on
The another side of one slider bottom also extends downwardly from pointer and indicates on the scale of scale, and described mounting groove longitudinally passes through
Wear the end face of the first mounting blocks thus form perforate in the side of the first mounting blocks, in the side of described first mounting blocks
It is provided with for limiting the limiting component that a roller rotates on face and near perforate.
Multi-functional rupture strength assay device the most according to claim 1, it is characterised in that: described
Roller arrangement is that radial type props up roller arrangement, and described press-roller device is radial type press-roller device, articulated roller dress
Put with radial type press-roller device all mainly by block pivoting support, gauge length screens, fastening nut, screw rod and pin
Sheet, for installing roller or the mounting groove of pressure roller and a pair limiting component composition, described chute is V-shaped groove,
Described pivoting support is made up of the second slide block of bottom and second mounting blocks on top, the bottom of described second slide block
Coordinating with described slide, described pin sheet is vertically arranged and described along the inner, bottom of described second slide block
Having gap between pin sheet and chute, described screw rod is through the one side of the second slider bottom stubborn by tighting a bolt
Tightly being pushed against pin sheet on chute to position pivoting support, described gauge length screens is fixed on the second slider bottom
On another side and extend downwardly from pointer indicate on the scale of scale, described mounting groove longitudinally through second install
The end face of block thus on the side of the second mounting blocks, form perforate, in the side of described second mounting blocks and close
Perforate is provided with for limiting a roller or the limiting component of pressure roller rotation；Described second mounting blocks and the second slide block are hinge
Connect in succession so that the second mounting blocks band dynamic pressure roller or roller can swing and adjust to correct position.
4. according to the multi-functional rupture strength assay device described in Claims 2 or 3, it is characterised in that: institute
State base, there is the slide rail of scale and connect and hold lotus device under post composition, under hold the span of lotus device and be
200～900mm, described connection post is provided with fixture, and described connection post is arranged on universal test machine platform,
And fixed by fixture.
Multi-functional rupture strength assay device the most according to claim 4, it is characterised in that: described solid
Locking member uses pin, and described pin inserts in the pin hole on universal test machine platform fixing.
Multi-functional rupture strength assay device the most according to claim 5, it is characterised in that: described
Base and connect the steel collet setting up a tabular between post, described collet respectively with base and be connected post connection.
7. according to the multi-functional rupture strength assay device described in Claims 2 or 3, it is characterised in that: institute
Stating base, have the slide rail of scale and connect the upper loading system of post composition, the span of upper loading system is
0～300mm, described connection post is provided with fixture, and described connection post is arranged on universal testing machine crossbeam, and
Fixed by fixture.
Multi-functional rupture strength assay device the most according to claim 7, it is characterised in that: described solid
Locking member uses pin, and described pin inserts in the pin hole on universal testing machine crossbeam fixing.
9. according to the multi-functional rupture strength assay device described in Claims 2 or 3, it is characterised in that: institute
The cross section stating mounting groove is semicircle, and a roller or pressure roller are cylinder, a roller or the face of cylinder of pressure roller and installation
The internal face of groove fits tightly.
Multi-functional rupture strength assay device the most according to claim 9, it is characterised in that: described limit
Position parts are made up of screw and the catch being set on screw, and described screw penetrates the first mounting blocks or second and installs
Block make catch spacing in the both ends of the surface of pressure roller or roller to avoid pressure roller or a roller to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620333318.6U CN205580877U (en) | 2016-04-20 | 2016-04-20 | Multi -functional transverse strength test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620333318.6U CN205580877U (en) | 2016-04-20 | 2016-04-20 | Multi -functional transverse strength test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205580877U true CN205580877U (en) | 2016-09-14 |
Family
ID=56863402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620333318.6U Active CN205580877U (en) | 2016-04-20 | 2016-04-20 | Multi -functional transverse strength test device |
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| CN (1) | CN205580877U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267616A (en) * | 2016-12-30 | 2018-07-10 | 上海优立检测技术股份有限公司 | A kind of insulation support plate for electromagnetic compatibility test |
| CN109387442A (en) * | 2018-10-31 | 2019-02-26 | 中国人民解放军第五七九工厂 | A kind of bend test fixture that can accurately adjust span and method |
| CN109855957A (en) * | 2019-04-03 | 2019-06-07 | 四川大学 | A kind of rock three-point bending fixture for dimensional effect test |
| CN114441335A (en) * | 2022-01-06 | 2022-05-06 | 北新建材（嘉兴）有限公司 | Method and device for measuring flexural strength of calcined gypsum |
| CN117804891A (en) * | 2024-03-01 | 2024-04-02 | 山西诚达工程质量检测有限公司 | Mechanical property test equipment for steel pipe scaffold fastener |
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2016
- 2016-04-20 CN CN201620333318.6U patent/CN205580877U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267616A (en) * | 2016-12-30 | 2018-07-10 | 上海优立检测技术股份有限公司 | A kind of insulation support plate for electromagnetic compatibility test |
| CN109387442A (en) * | 2018-10-31 | 2019-02-26 | 中国人民解放军第五七九工厂 | A kind of bend test fixture that can accurately adjust span and method |
| CN109855957A (en) * | 2019-04-03 | 2019-06-07 | 四川大学 | A kind of rock three-point bending fixture for dimensional effect test |
| CN109855957B (en) * | 2019-04-03 | 2023-12-01 | 四川大学 | Rock three-point bending clamp for size effect test |
| CN114441335A (en) * | 2022-01-06 | 2022-05-06 | 北新建材（嘉兴）有限公司 | Method and device for measuring flexural strength of calcined gypsum |
| CN114441335B (en) * | 2022-01-06 | 2024-06-07 | 泰山石膏(嘉兴)有限公司 | Method and device for measuring flexural strength of calcined gypsum |
| CN117804891A (en) * | 2024-03-01 | 2024-04-02 | 山西诚达工程质量检测有限公司 | Mechanical property test equipment for steel pipe scaffold fastener |
| CN117804891B (en) * | 2024-03-01 | 2024-05-10 | 山西诚达工程质量检测有限公司 | Mechanical property test equipment for steel pipe scaffold fastener |
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| C14 | Grant of patent or utility model | ||
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