CN106546457A - A kind of rut plate test specimen ingot stripper and die trial - Google Patents
A kind of rut plate test specimen ingot stripper and die trial Download PDFInfo
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- CN106546457A CN106546457A CN201610871668.2A CN201610871668A CN106546457A CN 106546457 A CN106546457 A CN 106546457A CN 201610871668 A CN201610871668 A CN 201610871668A CN 106546457 A CN106546457 A CN 106546457A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention provides a kind of rut plate test specimen ingot stripper, including housing, enclosure interior is provided with lowering or hoisting gear, force application apparatus, load transfer device and stopping means；Lowering or hoisting gear is vertically be arranged in parallel and is connected by load transfer device with force application apparatus；Lowering or hoisting gear provides the power of vertical direction motion by load transfer device for force application apparatus；Stopping means include support frame and installation die trial erecting bed on the support frame, die trial erecting bed is arranged on the surface of force application apparatus for fixing die trial, drive force application apparatus to increase a power straight up to test specimen by rotating lifting gear, test specimen is released from die trial.The rut plate test specimen ingot stripper and die trial that the present invention is provided is used cooperatively, demoulding efficiency is high, and it is conveniently stripped fixing and removing, save manpower, it is to avoid the drawbacks of beaing delivery with rubber hammer so that the die trial of taking-up is more complete, and conclusion (of pressure testing) is more accurate.
Description
Technical field
The invention belongs to Asphalt Mixture Experiment equipment innovation area, and in particular to a kind of rut plate test specimen ingot stripper and examination
Mould.
Background technology
According to JTG E20-2011《Highway engineering Colophonium and Asphalt Mixture Experiment code》, wheel milling process is applied to be grown
The molding of the plate-like test specimen of 300mm × wide 300mm × thickness 50-100mm.Before the board-like specimen molding of compound, need in die trial
One newspaper for cutting out of internal paving so that the bottom surface and side of die trial is isolated by paper, facilitates follow-up demoulding work.
The die trial now selected in test is made up of high-carbon steel or tool steel, and four side plates of die trial pass through bolt two-by-two
Link together, and an entirety is constituted with base plate respectively.When the demoulding is carried out to rut test piece, need to twist bolt one by one
Pine, due to the adhesiveness of Colophonium it is larger, so need using small-sized compaction hammer carry out beaing die trial to help the demoulding work it is suitable
Profit is carried out.
Find through lot of experiments, after above-mentioned process of the test, the waste paper for speckling with Colophonium in a large number can be produced, and these waste paper are difficult
To be recycled, the waste of paper and the pollution of environment are caused；The demoulding is carried out by the elastic principle of bolt easily makes spiral shell
Bolt is deformed or is stained with bolt the use that Colophonium etc. can all affect in die trial once, has a strong impact on the matter of specimen molding
Amount and the every time demoulding are required for frequently backing out bolt and bolt of screwing on, and lose time；Other striking for a long time with small-sized compaction hammer
Beat, the construction of the damage that can cause die trial and the inside for affecting board-like rut test piece affects the accuracy of result of the test.
The content of the invention
In order to solve that paper waste and environmental pollution are caused in prior art, need frequently when fixing die trial using bolt
Twist and take bolt and lose time, the quality of specimen molding is had a strong impact on when Colophonium use next time is stained with bolt, is hit with small-sized
Beaing for a long time for real hammer, can cause the construction of the damage of die trial and the inside of the board-like rut test piece of impact, affect result of the test
Accuracy problem, the present invention provides a kind of rut test piece ingot stripper and die trial.
A kind of rut plate test specimen ingot stripper, including housing, are provided with lowering or hoisting gear, force application apparatus, power transmission in enclosure interior
Device and stopping means；Lowering or hoisting gear is vertically be arranged in parallel and is connected by load transfer device with force application apparatus；
Lowering or hoisting gear provides the power of vertical direction motion by load transfer device for force application apparatus；Described stopping means bag
Include support frame and die trial erecting bed on the support frame be installed, die trial erecting bed be arranged on the surface of force application apparatus for
Fixed die trial；
Force application apparatus include passive power transmission shaft and thrust plate, and thrust plate is arranged on the upper end of passive power transmission shaft and its centre bit
Put and be connected with passive power transmission shaft by bearing, bearing cause thrust plate and passive power transmission shaft do together move on vertical direction while
Do not rotate with passive power transmission shaft, lowering or hoisting gear drives passive power transmission shaft to move straight up, thrust plate to test specimen straight up
Power causes test specimen to release from die trial.
Lowering or hoisting gear includes exert a force rotating disk, main body framework and initiative drive shaft, and described force rotating disk is arranged on and actively passes
The upper end of moving axis, the circumferential surface of described initiative drive shaft are provided with screw thread, initiative drive shaft be arranged in main body framework and
The contact position of entablature, middle cross beam and sill in initiative drive shaft and main body framework is threaded connection.
The circumferential surface of passive power transmission shaft is provided with screw thread, the first fixed plate in passive power transmission shaft and support frame, the
Using threaded connection, the sill in the 3rd fixed plate and main body framework is solid for the contact position of two fixed plates and the 3rd fixed plate
Even.
Load transfer device includes master gear, secondary gear and chain, master gear and time gear be separately mounted to initiative drive shaft and
On passive power transmission shaft, connected by chain between master gear and secondary gear.
Die trial erecting bed includes the first base plate, and the upper surface of the first base plate is provided with the first rectangle frame, the first rectangle frame
Four angles at be provided with pin hole, described the first base plate is provided centrally with first through hole, the shape of the first through hole,
Size is identical with described thrust plate, and the position of first through hole is corresponding with the position in the vertical direction of thrust plate.
Radius of the radius of master gear more than time gear.
Support frame and main body framework are welded using steel plate.
The upper surface of the second base plate is provided with the second rectangle frame, on the second rectangle frame a line frame therein and its opposite
Frame on be provided with hollow pipe, the center position of the second base plate is provided with the second through hole, the shape of second through hole, size and
Thrust plate it is identical；The area equation of the area and the second base plate of described overlying base plate, the length of side of described the second rectangle frame
Less than the first rectangle frame.
On the hollow pipe and ingot stripper that latch coordinates in die trial, pin hole is for die trial is fixed on ingot stripper.
The center position on the two other side of the second rectangle frame is hinged with handle.
Above technical scheme is compared with following technique effect with prior art effect：
1st, the present invention adopts lowering or hoisting gear and force application apparatus to coordinate, and manually controls lowering or hoisting gear and provides to force application apparatus
Power straight up, by thrust plate (11) to the uniform force of test specimen, realizes the lossless demoulding, and the radius of main driving wheel more than secondary
The radius of drive, so that people is to more laborsaving when force application apparatus applying power.
2nd, the present invention is fixed using bolt when die trial and ingot stripper are fixed, it is to avoid traditional knockout course repetition backs out,
Screw on the complicated processes of bolt, save time and manpower, improve demoulding efficiency；Overcome delivery is beaten using rubber hammer
Drawback so that the die trial of taking-up is more complete, and conclusion (of pressure testing) is more accurate, while avoid using waste paper, economizes on resources and ring
Border is pollution-free.
3rd, the present invention facilitates people to take by handle is arranged on the frame of die trial during demoulding, and handle and side
Frame does not waste the space on ingot stripper so that the fixation of die trial is more consolidated by being hinged when die trial is installed.
Description of the drawings
Fig. 1 is the overall schematic of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
Fig. 3 is force application apparatus structural representation of the present invention；
Fig. 4 is die trial structural representation of the present invention；
The implication that each label is represented in figure is：1- force rotating disks, 2- entablatures, 3- initiative drive shafts, 4- master gears, 5- quilts
Dynamic power transmission shaft, 6- pin holes, 7- first through hole, the first base plates of 8-, 9- chains, 10- gear, 11- thrust plates, 12- middle cross beams,
13- sills, the first fixed plates of 14-, the second fixed plates of 15-, the 3rd fixed plates of 16-, 17- bearings, the second base plates of 18-, 19- are empty
Heart pipe, 20- handles.
Specific embodiment
The rut plate test specimen ingot stripper that the present invention is provided, as shown in Figure 1 and Figure 2, including housing, is provided with enclosure interior
Lowering or hoisting gear, force application apparatus, load transfer device and stopping means；Lowering or hoisting gear is vertically be arranged in parallel with force application apparatus and by passing
Power apparatus connect,
Lowering or hoisting gear provides the power of vertical direction motion by load transfer device for force application apparatus；Stopping means include supporting
Framework and installation die trial erecting bed on the support frame, die trial erecting bed are arranged on the surface of force application apparatus for fixed examination
Mould；
As Fig. 3, force application apparatus include passive power transmission shaft 5 and thrust plate 11, thrust plate 11 is arranged on the upper of passive power transmission shaft 5
Hold and its center is connected with passive power transmission shaft 5 by bearing 17, bearing 17 allows thrust plate 11 with passive power transmission shaft 5
Motion on vertical direction is done together while not rotating with passive power transmission shaft 5, and lowering or hoisting gear drives passive power transmission shaft 5 to transport straight up
Dynamic, power of the thrust plate 11 to test specimen straight up causes test specimen to release from die trial.
Lowering or hoisting gear includes exert a force rotating disk 1, main body framework and initiative drive shaft 3, and force rotating disk 1 is arranged on initiative drive shaft
3 upper end, the circumferential surface of initiative drive shaft 3 are provided with screw thread, and initiative drive shaft 3 is arranged in main body framework and is actively driven
The contact position of entablature 2, middle cross beam 12 and sill 13 in axle 3 and main body framework is threaded connection.
The circumferential surface of passive power transmission shaft 5 is provided with screw thread, the first fixed plate on passive power transmission shaft 5 and support frame
14th, the contact position of the second fixed plate 15 and the 3rd fixed plate 16 adopts threaded connection, in the 3rd fixed plate 16 and main body framework
Sill 13 be connected.
Load transfer device includes that master gear 4, secondary gear 10 and chain 9, master gear 4 and time gear 10 are separately mounted to actively pass
On moving axis 3 and passive power transmission shaft 5, connected by chain 9 between master gear 4 and secondary gear 10.
Die trial erecting bed includes the first base plate 8, is provided with the first rectangle frame, the first square week in four installations of the first base plate 8
It is provided with pin hole 6 at four angles of shape frame, the first base plate 8 is provided centrally with first through hole 7, the shape of the first through hole 7
Shape, size are identical with described thrust plate 11, and the position of first through hole 7 and the position in the vertical direction of thrust plate 11 are relative
Should.
Preferably, radius of the radius of master gear 4 more than time gear 10.
Preferably, support frame and main body framework are welded using steel plate.
The die trial that a kind of and of the invention rut test piece ingot stripper is used cooperatively, such as Fig. 4, including the second base plate 18 and overlying
Base plate, is provided with the second rectangle frame in the surrounding of the second base plate 18, in a line frame and its frame on opposite of the second rectangle frame
On be provided with hollow pipe 19, be provided with the second through hole in the center position of the second base plate 18, the shape of second through hole, size and
Thrust plate 11 it is identical；The area equation of the area of overlying base plate and the second base plate 18, the length of side of the second rectangle frame are less than first
Rectangle frame.
Present invention additionally comprises latch, on the hollow pipe 19 and ingot stripper that latch coordinates in die trial, pin hole 6 is for by die trial
It is fixed on ingot stripper.
Handle is hinged with the center position of two other rectangular shaped rim of the second rectangle frame.
The following is the specific experiment process that inventor provides：
1st, the making of Wheel Tracking Specimens for Asphalt Mixtures
In the present embodiment, the molding of rut test piece is using conventional domestic rolling forming machine, die trial car designed by the present invention
Rut die trial.
(1) preparation
1) carry out the mix-design of rut plate test specimen asphalt.
2) determine mixing and stirring and compacting temperature for shaping asphalt rut test piece.
3) prepare mineral aggregate and Colophonium by formula, the mineral aggregate of all size is placed in 105 DEG C ± 5 DEG C of baking oven and is dried to perseverance
Weight is (typically no less than 4h).According to circumstances, coarse aggregate first can rinse post-drying well with water, also thickness can be gathered materials and use after sieving
Water rinses dry for standby again.
4) by thick, the fine aggregate of drying classification, quality mix homogeneously are weighed with requirement by specimen Design level, is put in baking oven
It is preheated to Colophonium and mixes and stirs that 15 DEG C of more than temperature is standby, breeze is individually heated, Colophonium constant temperature oven, electric jacket fusing is heated to rule
It is standby that fixed asphalt mixes and stirs temperature, but must not exceed 175 DEG C.
5) asphalt mixer is preheated to mix and stir 10 DEG C or so of more than temperature standby and be heated to suitable temperature
It is standby, and metal rut die trial, small-sized compaction hammer, scoop and spade etc. are placed in 100 DEG C of baking ovens heat 1h.
6), during mixing asphalt, it is close that required mixture quality is multiplied by Marshall standard impact density by the volume of 1 block of plate
Degree is multiplied by 1.03 coefficient and calculates.
(2) the board-like test specimen of shaping asphalt
1. the thickness of preheating is gathered materials and is placed in mixer, suitably mixed with little scoop, then adding needs quantity
Be heated to mixing and stirring the Colophonium of temperature, start mixer stir will mix and stir blade insertion compound in mix and stir
1.5min, then suspends and mixes and stirs, add the breeze of individually heating, continues to mix and stir to uniform, and keeps asphalt
Mix and stir in temperature range what is required.
2. the rut die trial of preheating is taken out from baking oven, overlying base plate is placed in into die trial hollow out substrate, then will
The whole asphalts for mixing and stirring, are equably turn-taked in order by side along die trial after slightly being mixed and stirred with scuppit and load examination
Mould, middle part outline are higher than surrounding.
3. turn-taked by Bian Zhizhong with the small-sized compaction hammer of preheating and tamped one time, insert thermometer, material to be mixed is cooled to rule
After fixed compacting temperature, a common paper for cutting out size is spread on surface, this measure is mixed to prevent rolling wheel from sticking Colophonium in die trial
Close material.
5., before rolling, being preheated to 100 DEG C or so and hollow part fill block is placed in hollow part under die trial rolling wheel is carried out
Envelope is filled out, to ensure the uniform force of compound in compacting process.Then, the die trial for filling asphalt is placed in into edge runner mill
Platform on, gently put down rolling wheel, start edge runner mill, first roll 2 in a direction and come and go (4 times), then turn test specimen
Direction is rolled to Marshall standard degree of compaction 100 ± 1% and is stopped, final molding rut test piece.
2nd, the demoulding
The ingot stripper provided using the present invention carries out the demoulding, and process is as follows：
(1) fill block of the second through hole of die trial is removed, the die trial equipped with board-like rut test piece that then health preserving is finished
It is placed in test specimen supporting table, after the pin hole in the hollow pipe alignment supporting table in die trial is placed, die trial is fixed with latch
In supporting table.
(2) force wheel disc is turned, drives thrust plate to rise to and the second through hole of die trial slitless connection.
(3) continue rotation force rotating disk, test specimen is gradually released from die trial by thrust plate, after test specimen comes out completely, stopped
Only exert a force.Test specimen is removed, follow-up test is carried out.
(4) extract latch out, remove die trial, the demoulding terminates.
The embodiment that inventor provides is the following is, it should be noted that these embodiments are preferably examples, the present invention is not
It is limited to the embodiment.
Embodiment：
Conventional AC-20 levels are selected to match somebody with somebody, level is with as follows：
1 AC-20 mix proportion designs of table
2 SBS modified asphalt technology indexs of table
| Technical performance index | |
| Needle penetration (25 DEG C, 0.1mm) | 51.3 |
| Softening point (DEG C) | 79.3 |
| T800(℃) | 77.9 |
| Ductility (15 DEG C, cm) | 138.4 |
| T1,2 (DEG C) | -11.4 |
| Rebound degree (15 DEG C, %) | 53 |
| Pi values | 0.16 |
| Mass loss (%) after RTFOT | 0.02 |
| Penetration ratio (%) after RTFOT | 91 |
What is adopted in test gathers materials as shown in table 1, and Colophonium is that SBS modified pitch is as shown in table 2, and coarse aggregate is limestone,
Fine aggregate is basalt, and the technical specification of various materials meets《Standard specification for construction and acceptance of highway asphalt pavement》(JTG F40-
2004) requirement.
To prove that ingot stripper, in the case where rut plate test specimen performance is not changed, can carry out the demoulding with convenient and safe.Examination
Test with identical material and ratio, at identical conditions, according to concrete process of the test described above, 8 ruts of molding
Test specimen.Two groups each 4 are subsequently classified as, demoulding time contrast is carried out, to prove that the carrying out that the ingot stripper can be convenient and safe takes off
Mould；And rut test piece after the demoulding is cut into into girder carries out low temperature bend test, it was demonstrated that the ingot stripper does not have to rut test piece performance
Damage.
1st, demoulding time compares
Demoulding time is carried out contrast and one-to-one form, the ingot stripper demoulding should be taken to be carried out with the conventional demoulding simultaneously, at the end of
The demoulding time of both record first block of plates, completes remaining 6 pieces of rut test pieces according to same sequence, and the time is compared as follows table institute
Show.
3 time of table correspondence table (S)
By form 3 it can easily be seen that when carrying out the demoulding to the board-like test specimen of 4 blocks of asphalts, the time used by ingot stripper than
89.5s is averagely lacked in the artificial demoulding, and ingot stripper is more safe and reliable, simple and convenient, it is not necessary to any demoulding equipment.
2nd, Performance comparision
Because carrying out kinds of experiments after the rut plate test specimen demoulding of molding, such as bending creep test, low temperature bend test, ooze
Water test, construction depth test etc., wherein low temperature bend test is routine test, the meeting when compound crack resistance at low-temperature is evaluated
It is commonly used, with certain representativeness, so the good result of ingot stripper is proved in embodiment from low temperature bend test.
Rut plate test specimen after the demoulding is made into prism test specimen, the long 250mm ± 2mm of sample dimensions, width with patterning method
30mm ± 2mm, high 35mm ± 2mm, across footpath is 200mm+0.5mm, the high plate for being respectively 300mm, 300mm, 50mm of a block length width
Block generally cleavable 6 test specimens.
During test, the size of test specimen is measured in span centre and two fulcrum section slide calliper rule, when the height or width of two fulcrum sections
When degree difference is more than 2mm, test specimen cancels.The width of spaning middle section is b, is highly h, takes the meansigma methodss of opposite sides, accurately extremely
0.1mm。
Test specimen is placed in insulation in the thermostatic water bath of set point of temperature and is no less than 45min, until test specimen temperature is 15 DEG C ± 0.5
DEG C, the distance between test specimen is not less than 10mm；Subsequently, testing machine environmental cabinet is transferred to into 15 DEG C ± 0.5 DEG C of set point of temperature, test
Machine Liang Shi test specimen bearings are accurately good and sound, and length of support is 200mm ± 0.5mm, and make seaming chuck and push-down head rod iron keeping parallelism
And apart from equal, fixed position；
Test specimen is taken out from thermostatic water bath, is symmetrically placed on bearing immediately, test specimen above-below direction should be with specimen molding
Shi Fangxiang is consistent.Then it is connected with data system using load transducer, LVDT sensors, with X-axis as displacement, Y-axis is load,
Return to zero after selecting suitable range, finally tested with the speed of 50mm/min.
Because the test specimen number that one group of test specimen repeats test is no less than 3, to make data more convincing, battery of tests test specimen
4 girders are selected, and is numbered respectively and is tested with same steps.Test evaluation index is bending tensile strength (MPa), maximum curved drawing
Strain (με), stiffness modulus (MPa).Result of the test is as shown in the table：
4 bend test result of table
As shown in Table 4, the bend test items result of the test specimen for obtaining after the ingot stripper demoulding will be better than conventional knocking
The test specimen that release method is obtained.Test result indicate that, after the demoulding is carried out using ingot stripper, the test specimen quality of acquisition more preferably, institute
Obtain result of the test more accurate.Again because stripping means, other external environments, anthropic factor, examination are only changed in process of the test
Test the influence factors such as material and instrument all identical, but from form can primary data have obvious difference, push away according in specification
The maximum flexural-tensile strain evaluation index recommended understands, stronger using the rut test piece crack resistance at low-temperature after the ingot stripper demoulding.Therefore
Can illustrate that the ingot stripper in the present invention is little to the board-like test specimen performance impact of asphalt, or even rut after the ingot stripper demoulding
The performance of test specimen is better than the artificial demoulding, this is because the ingot stripper is avoided car occurs because of long-term percussion base plate carries out the demoulding
The situation that the internal structure of rut test specimen is damaged, so that result of the test is more accurate.
In summary, a kind of rut die trial of the invention and ingot stripper, not only efficiency is substantially, convenient and safe, and the demoulding
Rut test piece performance afterwards is more nearly reality so that result of the test is more accurate.
Claims (10)
1. a kind of rut plate test specimen ingot stripper, including housing, it is characterised in that enclosure interior is provided with lowering or hoisting gear, force
Device, load transfer device and stopping means；Described lowering or hoisting gear is vertically be arranged in parallel with force application apparatus and by load transfer device
Connection；
Lowering or hoisting gear provides the power of vertical direction motion by load transfer device for force application apparatus；Described stopping means include propping up
Support frame frame and installation die trial erecting bed on the support frame, die trial erecting bed are arranged on the surface of force application apparatus for fixing
Die trial；
Force application apparatus include passive power transmission shaft (5) and thrust plate (11), and thrust plate (11) is arranged on the upper end of passive power transmission shaft (5)
And its center is connected with passive power transmission shaft (5) by bearing (17), bearing (17) causes thrust plate (11) and passive transmission
Axle (5) does motion on vertical direction together while not rotating with passive power transmission shaft (5), and lowering or hoisting gear drives passive power transmission shaft (5)
Move straight up, power of the thrust plate (11) to test specimen straight up causes test specimen to release from die trial.
2. rut plate test specimen ingot stripper as claimed in claim 1, it is characterised in that described lowering or hoisting gear includes the rotating disk that exerts a force
(1), main body framework and initiative drive shaft (3), described force rotating disk (1) are installed in the upper end of initiative drive shaft (3), described
The circumferential surface of initiative drive shaft (3) is provided with screw thread, and initiative drive shaft (3) is in main body framework and initiative drive shaft
(3) it is threaded connection with the contact position of entablature (2), middle cross beam (12) and sill (13) in main body framework.
3. rut plate test specimen ingot stripper as claimed in claim 1, it is characterised in that the circumference of described passive power transmission shaft (5)
Surface is provided with screw thread, the first fixed plate (14), the second fixed plate (15) and the 3rd on passive power transmission shaft (5) and support frame
Using threaded connection, the sill (13) in the 3rd fixed plate (16) and main body framework is connected for the contact position of fixed plate (16).
4. rut plate test specimen ingot stripper as claimed in claim 1, it is characterised in that described load transfer device includes master gear
(4), secondary gear (10) and chain (9), master gear (4) and time gear (10) are separately mounted to initiative drive shaft (3) and passive biography
On moving axis (5), connected by chain (9) between master gear (4) and time gear (10).
5. rut plate test specimen ingot stripper as claimed in claim 1, it is characterised in that described die trial erecting bed includes the first bottom
Plate (8), is provided with the first rectangle frame in the upper surface of the first base plate (8), is provided with latch at four angles of the first rectangle frame
Hole (6), described the first base plate (8) are provided centrally with first through hole (7), the shape of the first through hole (7), size and described
Thrust plate (11) it is identical, the position of first through hole (7) is corresponding with the position in the vertical direction of thrust plate (11).
6. rut plate test specimen ingot stripper as claimed in claim 1, it is characterised in that the radius of described master gear (4) is more than
The radius of secondary gear (10).
7. the rut plate test specimen ingot stripper as described in claim 1 and 2, it is characterised in that described support frame and main body bone
Frame is welded using steel plate.
8. the die trial that a kind of and rut plate test specimen ingot stripper described in claim 1 is used cooperatively, including the second base plate (18) and
Overlying base plate, it is characterised in that the upper surface of the second base plate (18) is provided with the second rectangle frame, it is therein in the second rectangle frame
Hollow pipe (19) is provided with the frame on a line frame and its opposite, the center position of the second base plate (18) is provided with second and leads to
Hole, the shape of second through hole, size are identical with thrust plate (11)；The area and the second base plate (18) of described overlying base plate
Area equation, the length of side of described the second rectangle frame is less than the first rectangle frame.
9. die trial as claimed in claim 8, it is characterised in that also including latch, described latch coordinate hollow in die trial
On pipe (19) and ingot stripper, pin hole (6) is for die trial is fixed on ingot stripper.
10. die trial as claimed in claim 8, it is characterised in that at the center on the two other side of the second described rectangle frame
Handle is hinged with position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871668.2A CN106546457B (en) | 2016-09-30 | 2016-09-30 | A kind of track plate test specimen ingot stripper and die trial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871668.2A CN106546457B (en) | 2016-09-30 | 2016-09-30 | A kind of track plate test specimen ingot stripper and die trial |
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| Publication Number | Publication Date |
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| CN106546457A true CN106546457A (en) | 2017-03-29 |
| CN106546457B CN106546457B (en) | 2019-05-10 |
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| CN201610871668.2A Expired - Fee Related CN106546457B (en) | 2016-09-30 | 2016-09-30 | A kind of track plate test specimen ingot stripper and die trial |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279147A (en) * | 2018-02-01 | 2018-07-13 | 长安大学 | A kind of electronic hammering device of compaction test apparatus |
| CN114441277A (en) * | 2020-11-06 | 2022-05-06 | 山东科技大学 | Novel bituminous mixture rut test piece demoulding equipment |
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