CN110253432A - A kind of fixture and its application method grinding brittleness thermoelectric material cuboid sample - Google Patents
A kind of fixture and its application method grinding brittleness thermoelectric material cuboid sample Download PDFInfo
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- CN110253432A CN110253432A CN201910543259.3A CN201910543259A CN110253432A CN 110253432 A CN110253432 A CN 110253432A CN 201910543259 A CN201910543259 A CN 201910543259A CN 110253432 A CN110253432 A CN 110253432A
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- 239000000463 material Substances 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 22
- 244000137852 Petrea volubilis Species 0.000 claims abstract description 39
- 241000209094 Oryza Species 0.000 claims description 22
- 235000007164 Oryza sativa Nutrition 0.000 claims description 22
- 235000009566 rice Nutrition 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims description 12
- 239000005357 flat glass Substances 0.000 claims description 9
- 229910005642 SnTe Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910005900 GeTe Inorganic materials 0.000 claims description 2
- 229910019752 Mg2Si Inorganic materials 0.000 claims description 2
- 229910002665 PbTe Inorganic materials 0.000 claims description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 2
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000004576 sand Substances 0.000 claims 1
- 239000000523 sample Substances 0.000 description 144
- 238000010586 diagram Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of fixture and its application method grinding brittleness thermoelectric material cuboid sample, the present invention relates to a kind of fixture for grinding cuboid sample and its application methods.Solve the thermoelectric material cuboid of existing measured resistivity, it is difficult to guarantee the flatness and face and the orthogonal problem in face in each face.Fixture includes circle ring part, cylindrical member, side fixture and end face fixture；Method: strip sample sticks at cylindrical member end face, is inserted in inside circle ring part, pushes after preceding on sand paper, and obtaining tool, there are two the samples of parallel surface；It is placed in the sample side clip slot of side fixture, is inserted in inside circle ring part, pushed after preceding on sand paper, then stick at cylindrical member end face again, be inserted in inside circle ring part, pushed after preceding on sand paper, obtaining tool, there are four the samples of vertical plane；It is placed in the sample end face clip slot of end face fixture, is inserted in inside circle ring part, pushed after preceding on sand paper.The present invention is for grinding brittleness thermoelectric material cuboid sample.
Description
Technical field
The present invention relates to a kind of fixture for grinding cuboid sample and its application methods.
Background technique
Research thermoelectric material needs its resistivity of precise measurement, and the equipment of existing commercial measurement thermoelectric material resistivity is general
It is required that test specimens are the cuboid of rule.Upper and lower two electrode clamps cuboid both ends of the surface, and two probes of constant spacing connect simultaneously
Touch certain one side, electric current flows through sample through upper/lower electrode, and two probes measure potential difference between contact point, further according to probe spacing from
And cuboid cross-sectional area calculates resistivity.Cuboid specimen size length direction is generally 8mm~12mm, cross-sectional aspect
For 2mm~3mm.Required between rectangular body side surface it is orthogonal, with guarantee cross-sectional area calculate accuracy, and then influence resistance
The accuracy of rate；Cuboid both ends of the surface need in parallel, to guarantee the stability of sample holder.Thermoelectric material is usually semiconductor material
Material, bad mechanical strength, brittleness is larger, and since specimen size is smaller, no special grinding equipment.Preparation method of sample is mostly at present
Strip sample is cut out using diamond wire saw machine in advance, is then simply polished on sand paper.The flatness in each face is difficult to ensure,
It is difficult to ensure between face and face orthogonal.
Summary of the invention
The invention solves the thermoelectric material cuboid of existing measured resistivity, the flatness in each face is difficult to ensure, face with
It is difficult to ensure orthogonal problem between face, and a kind of fixture for grinding brittleness thermoelectric material cuboid sample is provided and its is made
Use method.
A kind of fixture grinding brittleness thermoelectric material cuboid sample includes cylinder ring component, cylindrical member, side fixture
And end face fixture；
The end face of the cylinder ring component with it is axially vertical；
The side fixture is by sample side clip slot, the first counterweight tank and screw flute profile on the first cylinder side end face
At；The sample side clip slot is arranged along the first cylindrical body radial direction, and prolongs radial direction through the first cylindrical body；It is described
Flight side be parallel to sample side clip slot side, and multiple first threaded holes are set on flight side, described
One threaded hole is through-hole, and the first threaded hole is axially perpendicular to sample side clip slot side；The sample side clip slot
Two sides are parallel surface, and the sample side clip slot bottom surface and two sides of sample side clip slot are perpendicular；Sample side
The identical semicircle thread groove of and radius corresponding with the first screw thread hole site is arranged in face clip slot bottom surface；
The end face fixture is by sample end face clip slot, the second counterweight tank and planar shaped on the second cylindrical body outer circumference surface
At；The sample end face clip slot is arranged along the second cylindrical body axial direction, and prolongs axial direction through the second cylindrical body；It is described
Plane be parallel to sample end face clip slot side, and multiple second threaded holes are set, second threaded hole is logical in plane
Hole, and the second threaded hole is axially perpendicular to sample end face clip slot side；The sample end face clip slot two sides are parallel surface；
The sample end face clip slot bottom surface and two sides of sample end face clip slot are perpendicular；
The cylinder ring component respectively with cylindrical member, side fixture and end face fixture clearance fit, and cylinder ring portion
The axial height of part is lower than cylindrical member, side fixture and end face fixture.
A kind of application method for the fixture grinding brittleness thermoelectric material cuboid sample, it is to sequentially include the following steps:
One, flat glass is placed in horizontal table top, then sand paper is placed on flat glass；
Two, using transparent double face glue, the side plane of strip sample along its length is sticked at into cylindrical member end face, then will
Cylindrical member is inserted in cylinder ring components interior, is then placed in the one end for being stained with strip sample on sand paper downward, gives cylinder ring
Component radial force makes to push after it is preceding on sand paper；
The material of the strip sample is brittleness thermoelectric material；The transparent double face glue thickness is less than or equal to 0.1mm；
Three, the side surface polished in step 2 is sticked at into cylindrical member end face, and is repeated by step 2, obtain having two
The sample of a parallel surface；
Four, removing tool, there are two the samples of parallel surface, and are placed in the sample side clip slot of side fixture, and sample
Parallel surface is axially vertical with the first threaded hole, and using machine-processed rice screw means tool, there are two the samples of parallel surface, so that after fixed
Sample perpendicular to the first cylinder axis to a side surface be higher than the first cylindrical body setting sample side clip slot end face, and
Have and cushion block is set between sample and machine-processed rice screw there are two parallel surface, then side fixture is inserted in cylinder ring components interior, so
The one end for being equipped with sample side clip slot is placed on sand paper downward afterwards, makes its front and back on sand paper to cylinder ring component radial force
It pushes；
Five, the side surface polished in step 4 is sticked at into cylindrical member end face, and is repeated by step 2, obtain having four
The sample of a vertical plane；
Six, removing tool, there are four the samples of vertical plane, and are placed in the sample end face clip slot of end face fixture, and sample
Vertical plane is axially vertical with the second threaded hole, and using machine-processed rice screw means tool, there are four the samples of vertical plane, so that after fixed
Sample perpendicular to the first cylinder axis to a side surface be higher than the second cylindrical end face, and tool there are four vertical plane examination
Cushion block is set between sample and machine-processed rice screw, then end face fixture is inserted in cylinder ring components interior, specimen surface is then higher than the
One end of two cylindrical end faces is placed on sand paper downward, makes its preceding rear promotion on sand paper to cylinder ring component radial force；
Seven, the back side of buffed surface in step 6 is repeated by step 6, obtains brittleness thermoelectric material cuboid sample.
The beneficial effects of the present invention are:
The fixture and its application method of brittleness thermoelectric material cuboid sample, resulting thermoelectric material are ground using the present invention
Cuboid sample, the perpendicular relationship of each adjacent plane, and accuracy to size are high, repeatedly measure length and width and height in different location,
The difference for the length maxima and minima that different location measures is less than or equal to 0.01mm, the width maximum value that different location measures
It is less than or equal to 0.01mm with the difference of minimum value, the height maxima that different location measures and the difference of minimum value are less than or equal to
0.01mm.It ensure that the stability of sample holder and the accuracy of resistivity measurement.
The present invention is used for a kind of fixture and its application method for grinding brittleness thermoelectric material cuboid sample.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cylinder ring component of the present invention；
Fig. 2 is the structural schematic diagram of cylindrical member of the present invention；
Fig. 3 is the structural schematic diagram of side fixture of the present invention；
Fig. 4 is the structural schematic diagram of end face fixture of the present invention；
Fig. 5 is the structural schematic diagram that cylindrical member of the present invention installs sample；
Fig. 6 is the structural schematic diagram that cylindrical member of the present invention and cylinder ring component are used cooperatively；
Fig. 7 is the structural schematic diagram that side fixture of the present invention installs sample；
Fig. 8 is side fixture of the present invention and the structural schematic diagram that cylinder ring component is used cooperatively；
Fig. 9 is the structural schematic diagram that end face fixture of the present invention installs sample；
Figure 10 is the structural schematic diagram that end face fixture of the present invention and cylinder ring component are used cooperatively；
Figure 11 is the pictorial diagram of brittleness thermoelectric material cuboid sample prepared by embodiment one.
Specific embodiment
Specific embodiment 1: illustrating in conjunction with Fig. 1-4, present embodiment one kind grinds brittleness thermoelectric material cuboid
The fixture of sample includes cylinder ring component 1, cylindrical member 2, side fixture 3 and end face fixture 4；
The end face of the cylinder ring component 1 with it is axially vertical；
The side fixture 3 is by sample side clip slot 3-4, the first counterweight tank 3-3 on mono- side end face the first cylindrical body 3-1
And flight 3-2 is formed；The sample side clip slot 3-4 is arranged along the first cylindrical body 3-1 radial direction, and prolongs radial direction
Through the first cylindrical body 3-1；The side flight 3-2 is parallel to the sample side side clip slot 3-4, and the side flight 3-2
Multiple first threaded hole 3-6 are set on face, and the first threaded hole 3-6 is through-hole, and the first threaded hole 3-6's is axially vertical
In the sample side side clip slot 3-4；Two sides of the sample side clip slot 3-4 are parallel surface, the sample side
The bottom surface clip slot 3-4 and two sides of sample side clip slot 3-4 are perpendicular；The setting of the sample side bottom surface clip slot 3-4 and the first spiral shell
The position pit 3-6 is corresponding and the identical semicircle thread groove 3-5 of radius；
The end face fixture 4 is by sample end face clip slot 4-2, the second counterweight tank 4-3 on the second cylindrical body 4-1 outer circumference surface
And plane 4-4 is formed；The sample end face clip slot 4-2 is arranged along the second cylindrical body 4-1 axial direction, and prolongs axial direction and pass through
Wear the second cylindrical body 4-1；The plane 4-4 is parallel to the sample end face side clip slot 4-2, and multiple are arranged on plane 4-4
Two threaded hole 4-5, the second threaded hole 4-5 are through-hole, and the second threaded hole 4-5 is axially perpendicular to sample end face clip slot
The side 4-2；The sample end face two sides clip slot 4-2 are parallel surface；The sample end face bottom surface clip slot 4-2 and sample end
Two sides of face clip slot 4-2 are perpendicular；
The cylinder ring component 1 respectively with 4 clearance fit of cylindrical member 2, side fixture 3 and end face fixture, and cylinder
The axial height of ring component 1 is lower than cylindrical member 2, side fixture 3 and end face fixture 4.
First counterweight tank 3-3 and the second counterweight tank 4-3 is for counterpoise loss, so that side fixture 3 and end face fixture 4
Center of gravity is fallen on axis.
The beneficial effect of present embodiment is: grinding the examination of brittleness thermoelectric material cuboid using present embodiment
The fixture and its application method of sample, resulting thermoelectric material cuboid sample, the perpendicular relationship of each adjacent plane, and size essence
Exactness is high, repeatedly measures length and width and height in different location, the difference for the length maxima and minima that different location measures is less than
The difference of 0.01mm, the width maxima and minima that different location measures are less than 0.01mm, and the height that different location measures is most
The difference of big value and minimum value is less than 0.01mm.It ensure that the stability of sample holder and the accuracy of resistivity measurement.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: the cylinder ring component 1,
The material of cylindrical member 2, side fixture 3 and end face fixture 4 is stainless steel.It is other same as the specific embodiment one.
Specific embodiment 3: illustrating in conjunction with Fig. 5-10, it is rectangular that present embodiment one kind grinds brittleness thermoelectric material
The application method of the fixture of body sample, it is to sequentially include the following steps:
One, flat glass is placed in horizontal table top, then sand paper is placed on flat glass；
Two, using transparent double face glue 6, the side plane of strip sample 5-1 along its length is sticked at into 2 end of cylindrical member
Face, then cylindrical member 2 is inserted in inside cylinder ring component 1, then the one end for being stained with strip sample is placed on sand paper downward,
Make its preceding rear promotion on sand paper to 1 radial force of cylinder ring component；
The material of the strip sample 5-1 is brittleness thermoelectric material；6 thickness of transparent double face glue is less than or equal to
0.1mm；
Three, the side surface polished in step 2 is sticked at into 2 end face of cylindrical member, and is repeated by step 2, had
The sample 5-2 of two parallel surfaces；
Four, removing tool, there are two the sample 5-2 of parallel surface, and are placed in the sample side clip slot 3-4 of side fixture 3,
And the parallel surface of sample and the first threaded hole 3-6's is axially vertical, screwing tool using machine-processed rice screw 8, there are two the samples of parallel surface
5-2, so that the sample after fixed is higher than the first cylindrical body 3-1 setting examination perpendicular to a side surface of the first cylindrical body 3-1 axial direction
The end face of sample side clip slot 3-4, and cushion block 7 is set between sample 5-2 and machine-processed rice screw 8 of the tool there are two parallel surface, then will
Side fixture 3 is inserted in inside cylinder ring component 1, is then placed in one end equipped with sample side clip slot 3-4 on sand paper downward,
Make its preceding rear promotion on sand paper to 1 radial force of cylinder ring component；
Five, the side surface polished in step 4 is sticked at into 2 end face of cylindrical member, and is repeated by step 2, had
The sample 5-3 of four vertical planes；
Six, removing tool, there are four the sample 5-3 of vertical plane, and are placed in the sample end face clip slot 4-2 of end face fixture 4,
And the vertical plane of sample and the second threaded hole 4-5's is axially vertical, screwing tool using machine-processed rice screw 8, there are four the samples of vertical plane
5-3, so that the sample after fixed is higher than the second end face cylindrical body 4-1 perpendicular to a side surface of the first cylindrical body 3-1 axial direction, and
Cushion block 7 is set between sample 5-3 and machine-processed rice screw 8 of the tool there are four vertical plane, then end face fixture 4 is inserted in cylinder ring component
Inside 1, then one end that specimen surface is higher than the second end face cylindrical body 4-1 is placed on sand paper downward, gives cylinder ring component 1
Radial force makes to push after it is preceding on sand paper；
Seven, the back side of buffed surface in step 6 is repeated by step 6, obtains brittleness thermoelectric material cuboid sample.
Principle: sample is in the vertical direction only by cylindrical member 2, the pressure of side fixture 3 and end face fixture 4 straight down
The upward support force with flat glass；Only by the horizontal thrust of circle ring part 1 and the frictional force of sand paper in horizontal direction, level is pushed away
Power and frictional force are strictly parallel to glass planar, the component on no vertical direction.Therefore, each position of sample in the vertical direction by
Power is uniform, if the plane ground out hand-held sample friction parallel with the one side of adhesive tape, it is oblique that hand is applied to the power on sample
Under, there are the component of vertical direction, the position unbalance stress before and after frictional direction sample, the plane ground is difficult flat with opposite
Row.
According to required surface roughness in step 1, sand paper can successively be replaced by trumpet to large size.
The perpendicular relationship of each adjacent plane of brittleness thermoelectric material cuboid sample of present embodiment preparation, and it is full
The roughness needed enough.
Present embodiment is different according to the material hardness of strip sample, Step 2: pushing away in step 4 and step 6
Dynamic number may be different, when the precision that the brittleness thermoelectric material cuboid sample that this specific embodiment party obtains measures is unable to reach mark
It on time, can be by present embodiment repetitive operation.
Cushion block 7 described in present embodiment step 4 and six can prevent sample broken.
Specific embodiment 4: present embodiment is unlike specific embodiment three: sand paper described in step 1
For 400 mesh~3000 mesh sand paper.It is other to be the same as the specific implementation mode 3.
Specific embodiment 5: unlike one of present embodiment and specific embodiment three or four: institute in step 2
The strip sample 5-1 stated is the strip sample that wire cutting machine is cut out in advance.It is other identical as specific embodiment three or four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment three to five: institute in step 7
The brittleness thermoelectric material cuboid specimen length stated is 8mm~12mm, the examination of brittleness thermoelectric material cuboid described in step 7
Sample is high and width is 2mm~3mm.It is other identical as specific embodiment three or five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment three to six: institute in step 2
The transparent double face glue 6 stated is 3M transparent double face glue.It is other identical as specific embodiment three to six.
Specific embodiment 8: unlike one of present embodiment and specific embodiment three to seven: institute in step 2
The brittleness thermoelectric material stated is SnTe, PbTe, GeTe, SiGe, Mg2Si or skutterudite.Other and specific embodiment three to seven
It is identical.
Specific embodiment 9: unlike one of present embodiment and specific embodiment three to eight: machine in step 4
After rice screw 8 screws, end face of 7 end face of cushion block lower than the first cylindrical body 3-1 setting sample side clip slot 3-4.It is other with it is specific
Embodiment three to eight is identical.
Specific embodiment 10: unlike one of present embodiment and specific embodiment three to nine: machine in step 6
After rice screw 8 screws, 7 end face of cushion block is lower than the end face of the second cylindrical body 4-1.It is other identical as specific embodiment three to nine.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one:
It is illustrated in conjunction with Fig. 1~10, a kind of fixture grinding brittleness thermoelectric material cuboid sample includes cylinder ring portion
Part 1, cylindrical member 2, side fixture 3 and end face fixture 4；
The end face of the cylinder ring component 1 with it is axially vertical；
The side fixture 3 is by sample side clip slot 3-4, the first counterweight tank 3-3 on mono- side end face the first cylindrical body 3-1
And flight 3-2 is formed；The sample side clip slot 3-4 is arranged along the first cylindrical body 3-1 radial direction, and prolongs radial direction
Through the first cylindrical body 3-1；The side flight 3-2 is parallel to the sample side side clip slot 3-4, and the side flight 3-2
Multiple first threaded hole 3-6 are set on face, and the first threaded hole 3-6 is through-hole, and the first threaded hole 3-6's is axially vertical
In the sample side side clip slot 3-4；Two sides of the sample side clip slot 3-4 are parallel surface, the sample side
The bottom surface clip slot 3-4 and two sides of sample side clip slot 3-4 are perpendicular；The setting of the sample side bottom surface clip slot 3-4 and the first spiral shell
The position pit 3-6 is corresponding and the identical semicircle thread groove 3-5 of radius；
The end face fixture 4 is by sample end face clip slot 4-2, the second counterweight tank 4-3 on the second cylindrical body 4-1 outer circumference surface
And plane 4-4 is formed；The sample end face clip slot 4-2 is arranged along the second cylindrical body 4-1 axial direction, and prolongs axial direction and pass through
Wear the second cylindrical body 4-1；The plane 4-4 is parallel to the sample end face side clip slot 4-2, and multiple are arranged on plane 4-4
Two threaded hole 4-5, the second threaded hole 4-5 are through-hole, and the second threaded hole 4-5 is axially perpendicular to sample end face clip slot
The side 4-2；The sample end face two sides clip slot 4-2 are parallel surface；The sample end face bottom surface clip slot 4-2 and sample end
Two sides of face clip slot 4-2 are perpendicular；
The cylinder ring component 1 respectively with 4 clearance fit of cylindrical member 2, side fixture 3 and end face fixture, and cylinder
The axial height of ring component 1 is lower than cylindrical member 2, side fixture 3 and end face fixture 4.
The cylinder ring component 1, cylindrical member 2, side fixture 3 and end face fixture 4 material be stainless steel.
A kind of application method of above-mentioned fixture for grinding brittleness thermoelectric material cuboid sample, it be according to the following steps into
Row:
One, flat glass is placed in horizontal table top, then sand paper is placed on flat glass；
Two, using transparent double face glue 6, the side plane of strip sample 5-1 along its length is sticked at into 2 end of cylindrical member
Face, then cylindrical member 2 is inserted in inside cylinder ring component 1, then the one end for being stained with strip sample is placed on sand paper downward,
Make its preceding rear promotion 10 times~30 time on sand paper to 1 radial force of cylinder ring component；
The material of the strip sample 5-1 is brittleness thermoelectric material；
Three, the side surface polished in step 2 is sticked at into 2 end face of cylindrical member, and is repeated by step 2, had
The sample 5-2 of two parallel surfaces；
Four, removing tool, there are two the sample 5-2 of parallel surface, and are placed in the sample side clip slot 3-4 of side fixture 3,
And the parallel surface of sample and the first threaded hole 3-6's is axially vertical, screwing tool using machine-processed rice screw 8, there are two the samples of parallel surface
5-2, so that the sample after fixed is higher than the first cylindrical body 3-1 setting examination perpendicular to a side surface of the first cylindrical body 3-1 axial direction
The end face of sample side clip slot 3-4, and cushion block 7 is set between sample 5-2 and machine-processed rice screw 8 of the tool there are two parallel surface, then will
Side fixture 3 is inserted in inside cylinder ring component 1, is then placed in one end equipped with sample side clip slot 3-4 on sand paper downward,
Make its preceding rear promotion 10 times~30 time on sand paper to 1 radial force of cylinder ring component；
Five, the side surface polished in step 4 is sticked at into 2 end face of cylindrical member, and is repeated by step 2, had
The sample 5-3 of four vertical planes；
Six, removing tool, there are four the sample 5-3 of vertical plane, and are placed in the sample end face clip slot 4-2 of end face fixture 4,
And the vertical plane of sample and the second threaded hole 4-5's is axially vertical, screwing tool using machine-processed rice screw 8, there are four the samples of vertical plane
5-3, so that the sample after fixed is higher than the second end face cylindrical body 4-1 perpendicular to a side surface of the first cylindrical body 3-1 axial direction, and
Cushion block 7 is set between sample 5-3 and machine-processed rice screw 8 of the tool there are four vertical plane, then end face fixture 4 is inserted in cylinder ring component
Inside 1, then one end that specimen surface is higher than the second end face cylindrical body 4-1 is placed on sand paper downward, gives cylinder ring component 1
Radial force makes to push 10 times~30 times after it is preceding on sand paper；
Seven, the back side of buffed surface in step 6 is repeated by step 6, obtains brittleness thermoelectric material cuboid sample.
Sand paper described in step 1 is 800 mesh；
Strip sample 5-1 described in step 2 is the strip sample that wire cutting machine is cut out in advance；
Strip sample 5-1 length described in step 2 is 12mm~12.7mm, and strip sample described in step 2 is high
And wide is 2.8~3.0mm；
The 3M transparent double face glue with a thickness of 0.1mm is utilized in step 2；
Brittleness thermoelectric material described in step 2 is SnTe；
After machine-processed rice screw 8 screws in step 4, sample side clip slot 3-4 is arranged lower than the first cylindrical body 3-1 in 7 end face of cushion block
End face；
After machine-processed rice screw 8 screws in step 6,7 end face of cushion block is lower than the end face of the second cylindrical body 4-1.
Figure 11 is the pictorial diagram of brittleness thermoelectric material cuboid sample prepared by embodiment one, using vernier caliper, crisp
The different location of property thermoelectric material cuboid sample repeatedly measures length and width and height, and test point is evenly distributed with specimen surface, measures length
Value is respectively 2.281mm, 2.284mm and 2.290mm, and the difference for being computed length maxima and minima is 0.009mm, measures width
Angle value is respectively 2.220mm, 2.221mm and 2.225mm, and the difference for being computed width maxima and minima is 0.005mm, is measured
Height value is respectively 11.482mm, 11.485mm and 11.489mm, and the difference for being computed height maxima and minimum value is
0.007mm。
Claims (10)
1. a kind of fixture for grinding brittleness thermoelectric material cuboid sample, feature grind brittleness thermoelectric material cuboid in one kind
The fixture of sample includes cylinder ring component (1), cylindrical member (2), side fixture (3) and end face fixture (4)；
The end face of the cylinder ring component (1) with it is axially vertical；
The side fixture (3) is by sample side clip slot (3-4), the first counterweight tank on the first cylindrical body (3-1) side end face
The formation of (3-3) and flight (3-2)；The sample side clip slot (3-4) is arranged along the first cylindrical body (3-1) radial direction,
And prolong radial direction through the first cylindrical body (3-1)；Described side flight (3-2) is parallel to sample side clip slot (3-4)
Side, and multiple first threaded holes (3-6) are set on the side flight (3-2), first threaded hole (3-6) is through-hole,
And first threaded hole (3-6) be axially perpendicular to the side sample side clip slot (3-4)；The sample side clip slot (3-4)
Two sides are parallel surface, and two sides of the sample side clip slot bottom surface (3-4) and sample side clip slot (3-4) are mutually hung down
Directly；The identical semicircle thread groove of and radius corresponding with the first threaded hole position (3-6) is arranged in the sample side clip slot bottom surface (3-4)
(3-5)；
The end face fixture (4) is by sample end face clip slot (4-2), the second counterweight tank on the second cylindrical body (4-1) outer circumference surface
The formation of (4-3) and plane (4-4)；The sample end face clip slot (4-2) is arranged along the second cylindrical body (4-1) axial direction, and
Prolong axial direction through the second cylindrical body (4-1)；The plane (4-4) is parallel to the side sample end face clip slot (4-2), and flat
Multiple second threaded holes (4-5) are set on face (4-4), and second threaded hole (4-5) is through-hole, and the second threaded hole (4-
5) be axially perpendicular to the side sample end face clip slot (4-2)；The sample end face clip slot two sides (4-2) are parallel surface；Institute
The sample end face clip slot bottom surface (4-2) stated and two sides of sample end face clip slot (4-2) are perpendicular；
The cylinder ring component (1) respectively with cylindrical member (2), side fixture (3) and end face fixture (4) clearance fit, and
The axial height of cylinder ring component (1) is lower than cylindrical member (2), side fixture (3) and end face fixture (4).
2. a kind of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 1, it is characterised in that described
Cylinder ring component (1), cylindrical member (2), side fixture (3) and end face fixture (4) material be stainless steel.
3. a kind of application method for the fixture for grinding brittleness thermoelectric material cuboid sample as described in claim 1, feature
It is that it is to sequentially include the following steps:
One, flat glass is placed in horizontal table top, then sand paper is placed on flat glass；
Two, using transparent double face glue (6), the side plane of strip sample (5-1) along its length is sticked at into cylindrical member (2) end
Face, then cylindrical member (2) is inserted in cylinder ring component (1) inside, the one end for being stained with strip sample is then placed in sand downward
On paper, make its preceding rear promotion on sand paper to cylinder ring component (1) radial force；
The material of the strip sample (5-1) is brittleness thermoelectric material；Described transparent double face glue (6) thickness is less than or equal to
0.1mm；
Three, the side surface polished in step 2 is sticked at into cylindrical member (2) end face, and is repeated by step 2, obtain having two
The sample (5-2) of a parallel surface；
Four, removing tool, there are two the samples (5-2) of parallel surface, and are placed in the sample side clip slot (3-4) of side fixture (3)
In, and the parallel surface of sample and the first threaded hole (3-6) is axially vertical, screwing tool using machine-processed rice screw (8), there are two parallel
The sample (5-2) in face, so that the sample after fixed is higher than the first cylinder perpendicular to a side surface of the first cylindrical body (3-1) axial direction
The end face of sample side clip slot (3-4) is arranged in body (3-1), and there are two the samples (5-2) of parallel surface and machine-processed rice screw (8) in tool
Between cushion block (7) are set, then that side fixture (3) is inserted in cylinder ring component (1) is internal, then will be equipped with sample side clip slot
The one end of (3-4) is placed on sand paper downward, makes its preceding rear promotion on sand paper to cylinder ring component (1) radial force；
Five, the side surface polished in step 4 is sticked at into cylindrical member (2) end face, and is repeated by step 2, obtain having four
The sample (5-3) of a vertical plane；
Six, removing tool, there are four the samples (5-3) of vertical plane, and are placed in the sample end face clip slot (4-2) of end face fixture (4)
In, and the vertical plane of sample and the second threaded hole (4-5) is axially vertical, screwing tool using machine-processed rice screw (8), there are four vertical
The sample (5-3) in face, so that the sample after fixed is higher than the second cylinder perpendicular to a side surface of the first cylindrical body (3-1) axial direction
The end face body (4-1), and setting cushion block (7) between sample (5-3) and machine-processed rice screw (8) of the tool there are four vertical plane, then by end
Face fixture (4) is inserted in cylinder ring component (1) inside, then specimen surface is higher than to one end court of the end face the second cylindrical body (4-1)
Under be placed on sand paper, to cylinder ring component (1) radial force make its on sand paper it is preceding after push；
Seven, the back side of buffed surface in step 6 is repeated by step 6, obtains brittleness thermoelectric material cuboid sample.
4. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
Sign is that sand paper described in step 1 is 400 mesh~3000 mesh sand paper.
5. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
Sign is that strip sample (5-1) described in step 2 is the strip sample that wire cutting machine is cut out in advance.
6. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
Sign is that brittleness thermoelectric material cuboid specimen length described in step 7 is 8mm~12mm, brittleness described in step 7
Thermoelectric material cuboid sample is high and width is 2mm~3mm.
7. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
Sign is that transparent double face glue (6) described in step 2 is 3M transparent double face glue.
8. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
Sign is that brittleness thermoelectric material described in step 2 is SnTe, PbTe, GeTe, SiGe, Mg2Si or skutterudite.
9. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
After sign is that machine-processed rice screw (8) screws in step 4, cushion block (7) end face is pressed from both sides lower than the first cylindrical body (3-1) setting sample side
The end face of slot (3-4).
10. a kind of application method of fixture for grinding brittleness thermoelectric material cuboid sample according to claim 3, special
After sign is that machine-processed rice screw (8) screws in step 6, cushion block (7) end face is lower than the end face of the second cylindrical body (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910543259.3A CN110253432B (en) | 2019-06-21 | 2019-06-21 | Clamp for grinding brittle thermoelectric material cuboid sample and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543259.3A CN110253432B (en) | 2019-06-21 | 2019-06-21 | Clamp for grinding brittle thermoelectric material cuboid sample and using method thereof |
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| CN110253432A true CN110253432A (en) | 2019-09-20 |
| CN110253432B CN110253432B (en) | 2020-10-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474026A (en) * | 2020-04-27 | 2020-07-31 | 淮阴师范学院 | Manual manufacturing method of mudstone standard test piece |
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| JP2002036103A (en) * | 2000-07-18 | 2002-02-05 | Mitsubishi Electric Corp | Grinding sample preparation jig |
| CN201532331U (en) * | 2009-11-06 | 2010-07-21 | 宝钢集团新疆八一钢铁有限公司 | Auxiliary metallographic sample preparation fixture of semi-automatic grinding and polishing machine |
| DE102012017662A1 (en) * | 2012-09-07 | 2013-03-21 | Daimler Ag | Sample holder for grinding device of sample preparation device, comprises replaceable sacrificial stop elements vertically adjustable in normal direction, where grinding plane lying parallel to plane is formed by sacrificial stop elements |
| CN105606422A (en) * | 2016-01-26 | 2016-05-25 | 西北工业大学 | Multifunctional grinding tool |
| CN205538403U (en) * | 2016-04-19 | 2016-08-31 | 西华大学 | Metallographic specimen grinding device |
| CN208945856U (en) * | 2018-10-10 | 2019-06-07 | 自贡安博尔新型装饰材料有限公司 | A kind of metallic phase polishing mechanism for laboratory |
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2019
- 2019-06-21 CN CN201910543259.3A patent/CN110253432B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002036103A (en) * | 2000-07-18 | 2002-02-05 | Mitsubishi Electric Corp | Grinding sample preparation jig |
| CN201532331U (en) * | 2009-11-06 | 2010-07-21 | 宝钢集团新疆八一钢铁有限公司 | Auxiliary metallographic sample preparation fixture of semi-automatic grinding and polishing machine |
| DE102012017662A1 (en) * | 2012-09-07 | 2013-03-21 | Daimler Ag | Sample holder for grinding device of sample preparation device, comprises replaceable sacrificial stop elements vertically adjustable in normal direction, where grinding plane lying parallel to plane is formed by sacrificial stop elements |
| CN105606422A (en) * | 2016-01-26 | 2016-05-25 | 西北工业大学 | Multifunctional grinding tool |
| CN205538403U (en) * | 2016-04-19 | 2016-08-31 | 西华大学 | Metallographic specimen grinding device |
| CN208945856U (en) * | 2018-10-10 | 2019-06-07 | 自贡安博尔新型装饰材料有限公司 | A kind of metallic phase polishing mechanism for laboratory |
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| CN111474026A (en) * | 2020-04-27 | 2020-07-31 | 淮阴师范学院 | Manual manufacturing method of mudstone standard test piece |
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| CN110253432B (en) | 2020-10-30 |
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