CN108036984B - Thermoplastic resin film sample preparation device for polarizing microscope and use method thereof - Google Patents
Thermoplastic resin film sample preparation device for polarizing microscope and use method thereof Download PDFInfo
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- CN108036984B CN108036984B CN201711425415.3A CN201711425415A CN108036984B CN 108036984 B CN108036984 B CN 108036984B CN 201711425415 A CN201711425415 A CN 201711425415A CN 108036984 B CN108036984 B CN 108036984B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 284
- 239000011521 glass Substances 0.000 claims abstract description 123
- 238000005096 rolling process Methods 0.000 claims abstract description 35
- 238000003825 pressing Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 17
- 239000010408 film Substances 0.000 claims description 76
- 238000001816 cooling Methods 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 13
- 238000012512 characterization method Methods 0.000 claims description 12
- -1 polyoxymethylene Polymers 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000007977 PBT buffer Substances 0.000 claims description 3
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 3
- 229920002492 poly(sulfone) Polymers 0.000 claims description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000004626 polylactic acid Substances 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 9
- 238000007605 air drying Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000011218 binary composite Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910052882 wollastonite Inorganic materials 0.000 description 2
- 239000010456 wollastonite Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920006038 crystalline resin Polymers 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006014 semi-crystalline thermoplastic resin Polymers 0.000 description 1
Classifications
-
- 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
- G01N1/2813—Producing thin layers of samples on a substrate, e.g. smearing, spinning-on
-
- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a thermoplastic resin film sample preparation device for a polarizing microscope, which comprises a workbench fixing plane, wherein an air cylinder fixing plane is positioned above the workbench fixing plane; the upper heating plate and the lower heating plate are oppositely arranged and provided with grooves for placing glass slides; a rolling bearing groove is formed in the upper plane of the upper heating plate; the end of the dial indicator is connected with the lower part of the cylinder pressing rod, the bottom end of the cylinder pressing rod props against the rolling bearing fixing pressure-bearing platform, the rolling bearing is arranged at the bottom end of the rolling bearing fixing rod below the bearing fixing pressure-bearing platform, and the rolling bearing is positioned in the rolling bearing groove on the upper plane of the upper heating plate. The dislocation pressing part of the film sample of the invention leads the film to be horizontally stretched and spread to be thinner, and the rolling bearing rotates in the specific groove of the upper heating plate without influencing the operation of the cylinder in the pressing process, thereby effectively preventing the rolling bearing from derailing in the rotating process and preventing the upper heating plate from falling off to damage the telescopic rod of the cylinder.
Description
Technical Field
The invention belongs to the technical field of performance detection of thermoplastic resin products, and particularly relates to a thermoplastic resin film sample preparation device for a polarizing microscope and a use method thereof.
Background
At present, although the domestic synthetic resin industry forms a complete industrial system, and a large number of technical innovation results with international level and independent property rights are obtained while industrial application is realized, a plurality of problems still exist, and the problems are mainly represented by surplus capacity, lower specific gravity of high-end products, weak technical innovation capability, low industry differentiation operation level and the like. In order to accelerate the basic development, design and research of synthetic resin products, the influence of the microstructure of the synthetic resin products on the apparent performance of the products is deeply explored, the market competitiveness of domestic synthetic resin products is further improved, and the sample preparation analysis instrument and equipment matched with the product detection and characterization process are actively developed, so that the method has important significance and good market prospect.
Disclosure of Invention
The invention provides a preparation device and a use method of a thermoplastic resin film sample for a polarizing microscope, which are designed and manufactured aiming at the practical problems of small area and difficult preparation of an ultrathin film in the performance analysis process of a synthetic resin product, so as to meet the use requirements of the practical product characterization analysis process.
The object of the invention is achieved in the following way:
the thermoplastic resin film sample preparation device for the polarizing microscope comprises a workbench fixing plane, wherein three workbench base leveling devices are uniformly arranged on the lower plane of the workbench fixing plane, three cylinder fixing plane positioning bolts are uniformly arranged on the upper plane of the workbench fixing plane, the bottom ends of the cylinder fixing plane positioning bolts are fixed on the upper plane of the workbench fixing plane, the cylinder fixing plane is sleeved on the upper part of the cylinder fixing plane positioning bolts, and the cylinder fixing plane positioning bolts are installed on the upper part of the cylinder fixing plane positioning bolts through cylinder fixing plane leveling nuts; the lower heating plate is arranged on the upper plane of the fixed plane of the workbench through three lower heating plate plane leveling bolts uniformly arranged on the lower plane of the lower heating plate, a first groove for placing a slide glass is arranged on the upper plane of the lower heating plate, a second groove for placing the slide glass is arranged on the lower plane of the upper heating plate, the positions of the first groove and the second groove correspond to each other, a pushing handle is arranged on one side of the upper heating plate, a lower heating plate horizontal calibration tester is arranged on the upper plane of the lower heating plate, and the upper heating plate and the lower heating plate are connected with a temperature control device; a rolling bearing groove is formed in the upper plane of the upper heating plate;
the cylinder sets up on the cylinder fixed plane, and the percentage table passes through the percentage table support to be set up on the cylinder fixed plane, and the tip and the cylinder depression bar lower part of percentage table are connected, and the cylinder depression bar bottom withstands the fixed pressure-bearing platform of antifriction bearing, and antifriction bearing sets up the antifriction bearing dead lever bottom in the fixed pressure-bearing platform below of bearing, and antifriction bearing is located the antifriction bearing recess on the upper plane of upper heating plate, is provided with pressure sensor between cylinder depression bar and the fixed pressure-bearing platform of antifriction bearing, is provided with the fixed plane level calibration tester of cylinder on the plane on the fixed plane of cylinder.
Two cylinder fixing plane leveling nuts are arranged on each cylinder fixing plane positioning bolt, one cylinder fixing plane leveling nut is located above the cylinder fixing plane, and the other cylinder fixing plane leveling nut is located below the cylinder fixing plane.
The lower heating plate is internally provided with a temperature sensor, a temperature sensing head of the temperature sensor is positioned at the center of the lower heating plate, and a through hole is formed in the upper plane of the lower heating plate and corresponds to the temperature sensing head of the temperature sensor, so that the temperature sensing head of the temperature sensor can directly measure the temperature of a slide glass.
The thermoplastic resin is polyoxymethylene, polyethylene, polypropylene, PEO, PPO, nylon, PBT, PET, polyethylene furandicarboxylate, polylactic acid, polysulfone amide or polyether ether ketone.
The heating mode of the lower heating plate and the upper heating plate is electromagnetic heating, heat conducting oil heating or electric stove wire heating.
The lower heating plate horizontal calibration tester and the cylinder fixing plane horizontal calibration tester are embedded horizontal bubbles, and the upper plane of the workbench fixing plane is also provided with the embedded horizontal bubbles.
The workbench base leveling device comprises a workbench base leveling bolt and a workbench base leveling nut, wherein the workbench base leveling bolt is fixed on the lower plane of the workbench fixing plane, and the workbench base leveling nut is installed at the bottom end of the workbench base leveling bolt through threads.
The pressure air source of the air cylinder is steel cylinder air or factory instrument air.
The lower heating plate and the upper heating plate are metal heating plates made of red copper, stainless steel or aluminum magnesium alloy.
The method for using the thermoplastic resin film sample preparation device for the polarizing microscope comprises the following specific steps:
(1) leveling the working table fixing plane, the cylinder fixing plane and the lower heating plate;
(2) starting an air source of the air cylinder, setting the pressure of the air cylinder, pressurizing the air cylinder for the first time, starting a temperature control device, setting the target heating temperature, the heating rate, the cooling rate and the heating time of the heating plate, and preheating the lower heating plate and the upper heating plate;
(3) the cylinder is relieved for the first time, the cylinder pressure lever is lifted, a clean upper slide glass is placed in the second groove, a lower slide glass is placed in the first groove, the cylinder is pressurized for the second time, the lower heating plate and the upper heating plate preheat the lower slide glass and the upper slide glass, and the calibration dial indicator is zeroed;
(4) when the output temperature of the temperature sensor is equal to the target heating temperature of the heating plate, the air cylinder is relieved for the second time, the air cylinder pressure lever is lifted, a dried sample to be measured is placed between a lower slide glass and an upper slide glass, after the dried sample to be measured is melted, the air cylinder is pressurized for the third time, the pushing handle is pulled along one direction, the upper heating plate drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate is not moved, the upper heating plate drives the upper slide glass and the lower slide glass in the lower heating plate to horizontally misplacement movement, so that the film horizontally stretches and stretches to be thin until the thickness of the film reaches the requirement, and the indication number of the percentage table is the thickness of the film;
(5) if the required film thickness is difficult to achieve through the first horizontal dislocation movement of the upper slide glass and the lower slide glass, the cylinder can be relieved for the third time, the cylinder pressure bar is lifted, the upper slide glass is replaced, the sample to be tested stuck on the original upper slide glass is removed, only the sample to be tested on the lower slide glass remains, when the output temperature of the temperature sensor is equal to the target heating temperature of the heating plate, the cylinder is pressurized for the fourth time, the pushing handle is pulled along one direction, the upper heating plate drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate is not moved, the upper heating plate drives the upper slide glass and the lower slide glass in the lower heating plate to horizontally dislocation movement, the film is horizontally stretched, stretched and thinned, and so on until the thickness of the film reaches the requirement, and the indication number of the percentage table is the thickness of the film;
(6) and releasing pressure of the air cylinder, lifting the air cylinder pressure rod, stopping heating the lower heating plate and the upper heating plate, cooling to room temperature, taking out the upper glass slide and the lower glass slide, and placing the upper glass slide and the lower glass slide on a polarizing microscope stage for observation, analysis and characterization.
The invention mainly provides a preparation device of a film sample for observing a desktop polarized microscope for crystalline or semi-crystalline thermoplastic resin and an operation and use method thereof, wherein the preparation device of the thermoplastic resin film sample mainly comprises a cylinder pressure control air source part, a desktop operation workbench part, a cylinder fixing device part, a heating table control part, a film sample dislocation pressing part, a polarized microscope observation part and other related parts, and accessory parts comprise: slide glass, alcohol, absorbent cotton, tweezers, polarized light microscope, sample preparing knife, etc. The film sample preparation process mainly comprises the steps of leveling a workbench, leveling a cylinder fixing device, leveling a heating table, starting an air source, setting working pressure of the cylinder, setting target temperature and heating rate of preheating a heating plate for the first time, preheating the heating table, releasing pressure for the first time, cleaning and drying a glass slide, placing the glass slide into a clamping groove of an upper heating plate and a lower heating plate for the second time, preheating the glass slide, calibrating zero by a dial indicator, releasing pressure for the second time, weighing a sample to be measured, placing the sample to be measured between the upper glass slide and the lower glass slide, heating and melting the sample at constant temperature, pressurizing the cylinder for the third time, prefabricating the film, observing percentage indication number, misplacement sliding and pressing the film (if the film formed by one misplacement sliding and pressing does not meet the test requirement, replacing the glass slide carried by the upper heating plate for a plurality of times to heat misplacement and pressing the film thickness meeting the test requirement), stopping heating by the heating table, releasing pressure for the third time by the cylinder, cooling the glass slide carrying the film sample to room temperature, taking the glass slide carrying the film sample, and placing the glass slide carrying the film sample on a polarizing microscope for observation, analysis and characterization.
Compared with the prior art, the film sample dislocation pressing part mainly drives the slide glass embedded in the upper heating plate and the slide glass embedded in the lower heating plate to horizontally dislocate and move through the drawing and sliding of the upper heating plate, namely the slide glass is fixed, the upper slide glass is pushed by external force to horizontally move along the direction vertical to the radial direction of the rolling bearing along with the rotation of the rolling bearing, so that the film horizontally stretches and extends to be thinner, the rolling bearing rotates in a specific groove of the upper heating plate, the operation of the cylinder pressing process is not influenced, the derailment of the rolling bearing in the rotation process can be effectively prevented, and the damage of a cylinder telescopic rod caused by the falling of the upper heating plate can be prevented.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the upper heating plate.
Fig. 3 is a flow chart of the use of the present invention.
Fig. 4 is a flow chart of the invention in use when a slide needs to be replaced.
Wherein 1 is a workbench base leveling device; 2 is a workbench fixing plane; 3 is a cylinder fixing plane; 4 is a cylinder fixing plane leveling nut; 5 is a cylinder fixing plane positioning bolt; 6 is a lower heating plate plane leveling bolt; 7 is a lower heating plate; 8 is an upper heating plate; 9 is a rolling bearing fixed pressure-bearing platform; 10 is a rolling bearing; 11 is a cylinder compression bar; 12 is a cylinder; 13 is a cylinder reversing regulating valve; 14 is a push handle; 15 is a lower heating plate horizontal calibration tester; 16 is a temperature sensor; 17 is a cylinder fixed plane horizontal calibration tester; 18 is a dial gauge; 19 is a pressure sensor; 20 is a dial indicator bracket; 21 is a rolling bearing fixing rod; 22 is a rolling bearing groove; 23 is a workbench base leveling bolt; 24 is a table base leveling nut.
Detailed Description
As shown in fig. 1-2, the thermoplastic resin film sample preparation device for the polarizing microscope comprises a workbench fixing plane 2, wherein three workbench base leveling devices 1 are uniformly arranged on the lower plane of the workbench fixing plane 2, three cylinder fixing plane positioning bolts 5 are uniformly arranged on the upper plane of the workbench fixing plane 2, the bottom ends of the cylinder fixing plane positioning bolts 5 are fixed on the upper plane of the workbench fixing plane 2, and the cylinder fixing plane 3 is sleeved on the upper part of the cylinder fixing plane positioning bolts 5 and is arranged on the upper part of the cylinder fixing plane positioning bolts 5 through cylinder fixing plane leveling nuts 4; the lower heating plate 7 is arranged on the upper plane of the workbench fixing plane 2 through three lower heating plate plane leveling bolts 6 uniformly arranged on the lower plane of the lower heating plate 7, a first groove for placing a slide glass is arranged on the upper plane of the lower heating plate 7, the upper heating plate 8 is positioned above the upper plane of the lower heating plate 7, a second groove for placing the slide glass is arranged on the lower plane of the upper heating plate 8, the positions of the first groove and the second groove correspond, a pushing handle 14 is arranged on one side of the upper heating plate 8, a lower heating plate horizontal calibration tester 15 is arranged on the upper plane of the lower heating plate 7, and the upper heating plate 8 and the lower heating plate 7 are connected with a temperature control device; a rolling bearing groove 22 is arranged on the upper plane of the upper heating plate 8;
the cylinder 12 is arranged on the cylinder fixing plane 3, the dial indicator 18 is arranged on the cylinder fixing plane 3 through the dial indicator bracket 20, the end part of the dial indicator 18 is connected with the lower part of the cylinder pressing rod 11, the bottom end of the cylinder pressing rod 11 props against the rolling bearing fixing pressure-bearing platform 9, the rolling bearing 10 is arranged at the bottom end of the rolling bearing fixing rod 21 below the bearing fixing pressure-bearing platform 9, the rolling bearing 10 is positioned in the rolling bearing groove 22 on the upper plane of the upper heating plate 8, the pressure sensor 19 is arranged between the cylinder pressing rod 11 and the rolling bearing fixing pressure-bearing platform 9, and the cylinder fixing plane horizontal calibration tester 17 is arranged on the upper plane of the cylinder fixing plane 3.
One end of a lower heating plate plane leveling bolt 6 is in threaded connection with a lower heating plate 7, the other end of the lower heating plate plane leveling bolt 6 is in threaded connection with a workbench fixing plane 2, the lower heating plate plane leveling bolt 6 can only rotate in the lower heating plate 7 and is not movable, the lower heating plate plane leveling bolt 6 can rotate in the workbench fixing plane 2 and can also move up and down in the workbench fixing plane 2, and the lower heating plate plane leveling bolt 6 is screwed and the lower heating plate horizontal calibration tester 15 is observed, so that the lower heating plate 7 is ensured not to incline horizontally.
The rolling bearing 10 rotates in the special rolling bearing groove 22 of the upper heating plate 8, the operation of the pressurizing process of the air cylinder 12 is not influenced, derailment of the rolling bearing 10 in the rotating process can be effectively prevented, and the damage of the air cylinder pressing rod 11 caused by falling of the upper heating plate 8 can be prevented.
Under the condition of constant acting force of the air cylinder 12, the upper heating plate 8 is inserted and slid to drive the upper glass slide embedded in the upper heating plate and the lower glass slide embedded in the lower heating plate 7 to horizontally shift, so that the thin film horizontally stretches and spreads to be thinner. In the horizontal dislocation sliding process of the glass slide inlaid in the upper heating plate and the lower heating plate, the glass slide is fixed, and the glass slide is pushed by external force to move along the direction parallel to the radial direction of the bearing along with the rotation of the bearing in a horizontal dislocation manner.
The pressure sensor 19 between the cylinder compression bar 11 and the rolling bearing fixed pressure-bearing platform 9 is used for conveniently monitoring the pressure transmitted by the cylinder 12 on the upper heating plate in the film-pressing process in real time, and avoiding the breakage of the glass slide caused by overlarge pressure.
The thermocouples are arranged in the upper heating plate 8 and the lower heating plate 7, the heating devices and the thermocouples in the upper heating plate 8 and the lower heating plate 7 are connected with a temperature control device, a control panel is arranged on the temperature control device, the target heating temperature, the heating rate, the cooling rate and the heating time of the heating plates are input through the control panel, the heating temperature operation range is 30-500 ℃, the adjustment precision is 0-1 ℃/min, the heating rate adjustment range is 0-30 ℃/min, the cooling rate adjustment range is 0-30 ℃/min, and the constant temperature heating time adjustment range is 0-60min.
Two cylinder fixing plane leveling nuts 4 are arranged on each cylinder fixing plane positioning bolt 5, one cylinder fixing plane leveling nut 4 is located above the cylinder fixing plane 3, and the other cylinder fixing plane leveling nut 4 is located below the cylinder fixing plane 3. The cylinder fixing plane leveling nut 4 above the cylinder fixing plane 3 plays a role in limiting, the cylinder fixing plane leveling nut 4 below the cylinder fixing plane 3 plays a role in supporting the cylinder fixing plane 3, the cylinder fixing plane leveling nut 4 is adjusted up and down, the cylinder fixing plane horizontal calibration tester 17 is observed, and the cylinder fixing plane 3 is ensured not to incline horizontally.
The temperature sensor 16 is arranged in the lower heating plate 7, the temperature sensing head of the temperature sensor 16 is positioned at the center of the lower heating plate 7, and through holes are formed in the upper plane of the lower heating plate 7 and correspond to the temperature sensing head of the temperature sensor 16, so that the temperature sensing head of the temperature sensor 16 can directly measure the temperature of a slide glass. The sample to be measured is placed on the slide at a position corresponding to the through hole, so that the temperature sensor 16 can accurately measure the temperature at the sample to be measured.
The thermoplastic resin is polyoxymethylene, polyethylene, polypropylene, PEO, PPO, nylon, PBT, PET, polyethylene furandicarboxylate, polylactic acid, polysulfone amide or polyether ether ketone.
The heating mode of the lower heating plate 7 and the upper heating plate 8 is electromagnetic heating, heat conduction oil heating or electric wire heating.
The lower heating plate horizontal calibration tester 15 and the air cylinder fixing plane horizontal calibration tester 17 are embedded horizontal bubbles, and the upper plane of the workbench fixing plane 2 is also provided with the embedded horizontal bubbles.
The workbench base leveling device 1 comprises a workbench base leveling bolt 23 and a workbench base leveling nut 24, wherein the workbench base leveling bolt 23 is fixed on the lower plane of the workbench fixing plane 2, and the workbench base leveling nut 24 is installed at the bottom end of the workbench base leveling bolt 23 through threads. By adjusting the table base leveling nut 24 up and down, the table fixing plane 2 is ensured not to incline horizontally.
The pressure gas source of the cylinder 12 is steel cylinder gas or factory instrument gas, and the steel cylinder gas is nitrogen (N) 2 ) Air, oxygen (O) 2 ) One of the above, wherein the factory instrument gas is nitrogen (N) 2 ) Air, oxygen (O) 2 ) The pressure of the air source ranges from 0MPa to 10MPa, the working range of the air source is 0MPa to 3MPa after the air source pressure is controlled by pressure reduction, the air source pressure control and adjustment mode comprises that a pressure reducing valve is directly controlled or is adjusted by observing through a float flowmeter, the working stroke of an air cylinder compression rod 11 is 0mm to 50mm, the adjustment precision is 0.01mm to 0.1mm, an air cylinder working pressure adjusting device comprises an adjusting knob and a locking knob, and the locking knob is locked after the air source pressure is adjusted to the required working pressure through the adjusting knob, so that the air cylinder pressure is prevented from fluctuating; the cylinder compression bar 11 controls the expansion and contraction of the cylinder compression bar through a cylinder reversing regulating valve; the cylinder compression bar 11 is connected with the end of the dial indicator 18, and the dial indicator 18 is used for calibrating the thickness of the film sample by detecting the telescopic travel of the cylinder.
The cylinder 12 is fixed by a portal frame type, a cantilever type or a tripod type.
The lower heating plate 7 and the upper heating plate 8 are metal heating plates made of red copper, stainless steel or aluminum magnesium alloy.
As shown in fig. 3 to 4, the method for using the thermoplastic resin film sample preparation device for a polarizing microscope as described above comprises the following specific steps:
(1) leveling the workbench fixing plane 2, the cylinder fixing plane 3 and the lower heating plate 7;
(2) starting an air source of the air cylinder 12, setting the pressure of the air cylinder 12, pressurizing the air cylinder 12 for the first time, starting a temperature control device, setting the target heating temperature, the heating rate, the cooling rate and the heating time of the heating plate, and preheating the lower heating plate 7 and the upper heating plate 8; the set target heating temperature of the heating plate is the melting temperature of the sample to be detected or slightly higher than the melting temperature of the sample to be detected;
(3) the cylinder 12 is depressurized for the first time, the cylinder pressing rod 11 is lifted, clean upper glass slides are placed in the second groove, the lower glass slides are placed in the first groove, the cylinder 12 is pressurized for the second time, the lower heating plate 7 and the upper heating plate 8 preheat the lower glass slides and the upper glass slides, and the calibration dial indicator 18 is zeroed;
(4) when the output temperature of the temperature sensor 16 is equal to the target heating temperature of the heating plate, the air cylinder 12 is relieved for the second time, the air cylinder compression rod 11 is lifted, a dried sample to be measured is placed between a lower slide glass and an upper slide glass, after the dried sample to be measured is melted, the air cylinder 12 is pressurized for the third time, the pushing handle 14 is pulled along one direction, the upper heating plate 8 drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate 7 is not moved, the upper heating plate 8 drives the upper slide glass and the lower slide glass in the lower heating plate 7 to horizontally move in a dislocation manner, so that the film is horizontally stretched, stretched and thinned, and the indication number of the dial gauge 18 is the thickness of the film until the thickness of the film reaches the requirement;
(5) if the required film thickness is difficult to achieve through the first horizontal dislocation movement of the upper slide glass and the lower slide glass, the cylinder 12 can be relieved for the third time, the cylinder pressing rod 11 is lifted, the upper slide glass is replaced, the sample to be detected stuck on the original upper slide glass is removed, only the sample to be detected on the lower slide glass remains, when the output temperature of the temperature sensor 16 is equal to the target heating temperature of the heating plate, the cylinder 12 is pressurized for the fourth time, the pushing handle 14 is pulled along one direction, the upper heating plate 8 drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate 7 is not moved, so that the upper heating plate 8 drives the upper slide glass and the lower slide glass in the lower heating plate 7 to horizontally misplace, the film is horizontally stretched, stretched and thinned, and so on until the thickness of the film reaches the requirement, the indication number of the percentage table 18 is the thickness of the film;
(6) the pressure of the air cylinder 12 is relieved, the air cylinder pressure lever 11 is lifted, the lower heating plate 7 and the upper heating plate 8 stop heating, the upper glass slide and the lower glass slide are taken out after cooling to the room temperature, and the glass slide and the lower glass slide are placed on the polarizing microscope stage for observation, analysis and characterization. The thermoplastic resin can be subjected to crystal ball size measurement, crystal ball particle size distribution statistics, melt crystallization process observation, melt crystallization temperature range measurement and the like by a polarizing microscope.
Example 1:
and preparing a CPOM film sample by using high-viscosity Copolyformaldehyde (CPOM) as an experimental object so as to analyze and characterize the melting crystallization process of the CPOM, the crystal ball size of the CPOM, the distribution of the CPOM and other relevant performances under a polarizing microscope by experimental researchers. The experimental procedure was as follows:
1) CPOM with the melt mass flow rate (MI) of 9.0g/10min is selected as a test object;
2) Placing a sample to be tested in a vacuum forced air drying oven (at 80 ℃) for drying for 2 hours, taking out, and weighing 0.1-0.3mg of the dried sample to be tested for later use;
3) The purified factory instrument gas (N) is selected 2 ) As a pressure air source, setting the operating pressure of the air cylinder to be 0.5MPa, leveling the fixed plane of the calibration air cylinder, the fixed plane of the workbench and the lower heating plate, and calibrating the zeroing pressure gauge;
4) Sequentially leveling a working table fixing plane, a cylinder fixing plane and a lower heating plate, starting a cylinder, starting an air source, setting working pressure of the cylinder, pressurizing the cylinder for the first time, starting a heating source (electric heating), preheating the heating plate, setting the target heating temperature of the heating plate to be 200 ℃, the heating rate to be 20 ℃/min, the cooling rate to be 20 ℃/min and the constant heating time to be 30min;
5) Pre-cleaning 2 glass slides with alcohol, suspending the working pressure of the air cylinder after air drying, respectively placing the glass slides into grooves of an upper heating plate and a lower heating plate which are heated at constant temperature after lifting an air cylinder pressing rod, starting the working pressure of the air cylinder again for constant temperature pre-heating, and calibrating a zero percent meter;
6) When the output temperature of the central temperature sensor of the heating plate is about 200 ℃, suspending the working pressure of the cylinder for the second time, lifting the cylinder pressing rod, placing the weighed sample to be measured between glass slides in the clamping grooves of the upper heating plate and the lower heating plate, and restarting the working pressure of the cylinder to perform constant-temperature pre-pressing to form a film after the dried sample to be measured is melted;
7) Checking the thickness change of the film according to the indication of the carrying dial indicator of the air cylinder, and pulling the upper heating plate to misplacement slide to press the film until the film thickness is less than 0.03 mm;
8) And stopping working pressure of the air cylinder, lifting the air cylinder pressure rod, stopping heating by the heating plate, cooling to room temperature, taking out the glass slide, and placing the glass slide on a polarizing microscope stage for observation, analysis and characterization.
Example 2:
and preparing a CPOM film sample by using high-fluidity Copolyformaldehyde (CPOM) as an experimental object so as to analyze and characterize the melting crystallization process of the CPOM, the crystal ball size of the CPOM, the distribution of the CPOM and other relevant performances under a polarizing microscope by experimental researchers. The experimental procedure was as follows:
1) CPOM with the melt mass flow rate (MI) of 27.0g/10min is selected as a test object;
2) Placing a sample to be tested in a vacuum forced air drying oven (at 80 ℃) for drying for 2 hours, taking out, and weighing 0.1-0.3mg of the dried sample to be tested for later use;
3) The purified factory instrument gas (N) is selected 2 ) As a pressure air source, setting the operating pressure of the air cylinder to be 0.5MPa, leveling the fixed plane of the calibration air cylinder, the fixed plane of the workbench and the lower heating plate, and calibrating the zeroing pressure gauge;
4) Sequentially leveling the air cylinder fixing plane, the workbench fixing plane and the lower heating plate, starting the air cylinder, starting an air source, setting the working pressure of the air cylinder, pressurizing the air cylinder for the first time, starting a heating source (electric heating), preheating the heating table, setting the target heating temperature of the heating plate to be 200 ℃, the heating rate to be 20 ℃/min, the cooling rate to be 20 ℃/min and the constant heating time to be 30min;
5) Pre-cleaning 2 glass slides with alcohol, suspending the working pressure of the air cylinder after air drying, lifting the pressure rod of the air cylinder, respectively placing the pressure rod of the air cylinder into grooves of an upper heating plate and a lower heating plate which are heated at constant temperature, starting the working pressure of the air cylinder again for constant temperature pre-heating, and calibrating a zero percent meter;
6) When the output temperature of the central temperature sensor of the heating plate is about 200 ℃, suspending the working pressure of the cylinder for the second time, lifting the cylinder pressing rod, placing the weighed sample to be measured between glass slides in grooves of the upper heating plate and the lower heating plate, and restarting the working pressure of the cylinder to perform constant-temperature pre-pressing on the film after the dried sample to be measured is melted;
7) Checking the thickness change of the film according to the indication of the carrying dial indicator of the air cylinder, and pulling the upper heating plate to misplacement sliding press the film until the film thickness is less than 0.05 mm;
8) And stopping working pressure of the air cylinder, lifting the air cylinder pressure rod, stopping heating by the heating table, cooling to room temperature, taking out the glass slide, and placing the glass slide on a polarizing microscope stage for observation, analysis and characterization.
Example 3:
wollastonite fiber filled reinforced copolyformaldehyde composite material (WF/POM) is selected as an experimental object, and preparation of WF/POM film samples is carried out so as to be used for analysis and characterization of the related performances such as the melting crystallization process of WF/POM, the crystal ball size of WF/POM, the distribution thereof and the like under a polarizing microscope by experimental researchers. The experimental procedure was as follows:
1) Selecting a composite material WF/POM prepared from a Wollastonite Fiber (WF) filled solution with a filling amount of 10-15wt% and copolyformaldehyde with a mass flow rate of 27.0g/10min as a test object;
2) Placing a sample to be tested in a vacuum forced air drying oven (at 80 ℃) for drying for 2 hours, taking out, and weighing 0.1-0.3mg of the dried sample to be tested for later use;
3) Selecting purified factory instrument gas (O) 2 ) As a pressure air source, setting the operating pressure of the air cylinder to be 0.5MPa, leveling the fixed plane of the calibration air cylinder, the fixed plane of the workbench and the lower heating plate, and calibrating the zeroing pressure gauge;
4) Sequentially leveling the air cylinder fixing plane, the workbench fixing plane and the lower heating plate, starting the air cylinder, starting an air source, setting the working pressure of the air cylinder, pressurizing the air cylinder for the first time, starting a heating source (electric heating), preheating the heating table, setting the target heating temperature of the heating plate to 210 ℃, the heating rate to 20 ℃/min, the cooling rate to 20 ℃/min and the constant heating time to 30min;
5) Pre-cleaning 2 glass slides with alcohol, suspending the working pressure of the air cylinder after air drying, lifting the pressure rod of the air cylinder, respectively placing the pressure rod of the air cylinder into grooves of an upper heating plate and a lower heating plate which are heated at constant temperature, starting the working pressure of the air cylinder again for constant temperature pre-heating, and calibrating a zero percent meter;
6) When the output temperature of the central temperature sensor of the heating plate is about 210 ℃, suspending the working pressure of the cylinder for the second time, lifting the cylinder pressing rod, placing the weighed sample to be measured between glass slides in grooves of the upper heating plate and the lower heating plate, and restarting the working pressure of the cylinder to perform constant-temperature pre-pressing on the film after the dried sample to be measured is melted;
7) Checking the thickness change of the film according to the indication of the carrying dial indicator of the cylinder, and pulling the upper heating plate to misplace and slide to press the film until the film thickness is less than 0.02mm;
8) The working pressure of the air cylinder is stopped, the glass slide carried by the upper heating plate is replaced after the pressure lever of the air cylinder is lifted, and the working pressure of the air cylinder is started again to perform constant-temperature preheating; when the output temperature of the central temperature sensor of the heating plate is about 210 ℃, the upper heating plate is pulled again to heat and misplace the pressed film until the thickness of the film is less than 0.01mm;
9) The working pressure of the air cylinder is stopped, the glass slide carried by the upper heating plate is replaced after the pressure lever of the air cylinder is lifted, and the working pressure of the air cylinder is started again to perform constant-temperature preheating; when the output temperature of the central temperature sensor of the heating plate is about 210 ℃, the upper heating plate is pulled again to heat and misplace the pressed film until the thickness of the film is less than 0.005mm;
10 And (3) stopping working pressure of the air cylinder, lifting the air cylinder pressure rod, stopping heating by the heating table, cooling to room temperature, taking out the glass slide, and placing the glass slide on a polarizing microscope stage for observation, analysis and characterization.
Example 4:
the preparation method comprises the steps of selecting a binary composite material (TPU/POM) prepared from polyurethane (TPU) toughened and copolymerized formaldehyde (POM) plastic alloy as an experimental object, and preparing a binary composite material (TPU/POM) film sample for analysis and characterization of the melting crystallization process of the binary composite material (TPU/POM), the crystal ball size of CPOM, the distribution and other relevant performances of the binary composite material (TPU/POM) under a polarizing microscope by experimental researchers. The experimental procedure was as follows:
1) Selecting a binary composite material (TPU/POM) prepared by POM with the filling amount of 10wt% and the toughening melt mass flow rate (MI) of 27.0g/10min as a test object;
2) Placing a sample to be tested in a vacuum forced air drying oven (at 80 ℃) for drying for 2 hours, taking out, and weighing 0.1-0.3mg of the dried sample to be tested for later use;
3) The purified factory instrument gas (N) is selected 2 ) As a pressure air source, setting the operating pressure of the air cylinder to be 0.5MPa, leveling the fixed plane of the calibration air cylinder, the fixed plane of the workbench and the lower heating plate, and calibrating the zeroing pressure gauge;
4) Sequentially leveling the air cylinder fixing plane, the workbench fixing plane and the lower heating plate, starting the air cylinder, starting an air source, setting the working pressure of the air cylinder, pressurizing the air cylinder for the first time, starting a heating source (electric heating), preheating the heating table, setting the target heating temperature of the heating plate to be 180 ℃, the heating rate to be 15 ℃/min, the cooling rate to be 20 ℃/min and the constant heating time to be 20min;
5) Pre-cleaning 2 glass slides with alcohol, suspending the working pressure of the air cylinder after air drying, lifting the pressure rod of the air cylinder, respectively placing the pressure rod of the air cylinder into grooves of an upper heating plate and a lower heating plate which are heated at constant temperature, starting the working pressure of the air cylinder again for constant temperature pre-heating, and calibrating a zero percent meter;
6) When the output temperature of the central temperature sensor of the heating plate is about 180 ℃, suspending the working pressure of the cylinder for the second time, lifting the cylinder pressing rod, placing the weighed sample to be measured between glass slides in grooves of the upper heating plate and the lower heating plate, and after the dried sample to be measured is melted, starting the working pressure of the cylinder again to perform constant-temperature pre-pressing to form a film;
7) Checking the thickness change of the film according to the indication of the carrying dial indicator of the air cylinder, and pulling the upper heating plate to misplacement slide to press the film until the film thickness is less than 0.03 mm;
8) And stopping working pressure of the air cylinder, lifting the air cylinder pressure rod, stopping heating by the heating table, cooling to room temperature, taking out the glass slide, and placing the glass slide on a polarizing microscope stage for observation, analysis and characterization.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the invention.
Claims (10)
1. The preparation device of the thermoplastic resin film sample for the polarizing microscope is characterized in that: the leveling device comprises a workbench fixing plane (2), wherein three workbench base leveling devices (1) are uniformly arranged on the lower plane of the workbench fixing plane (2), three air cylinder fixing plane positioning bolts (5) are uniformly arranged on the upper plane of the workbench fixing plane (2), the bottom ends of the air cylinder fixing plane positioning bolts (5) are fixed on the upper plane of the workbench fixing plane (2), the air cylinder fixing plane (3) is sleeved on the upper part of the air cylinder fixing plane positioning bolts (5), and the leveling device is installed on the upper part of the air cylinder fixing plane positioning bolts (5) through air cylinder fixing plane leveling nuts (4); the lower heating plate (7) is arranged on the upper plane of the workbench fixing plane (2) through three lower heating plate plane leveling bolts (6) uniformly arranged on the lower plane of the lower heating plate, a first groove for placing a glass slide is formed in the upper plane of the lower heating plate (7), the upper heating plate (8) is positioned above the upper plane of the lower heating plate (7), a second groove for placing the glass slide is formed in the lower plane of the upper heating plate (8), the positions of the first groove and the second groove correspond to each other, a pushing handle (14) is arranged on one side of the upper heating plate (8), a lower heating plate horizontal calibration tester (15) is arranged on the upper plane of the lower heating plate (7), and the upper heating plate (8) and the lower heating plate (7) are connected with a temperature control device; a rolling bearing groove (22) is arranged on the upper plane of the upper heating plate (8);
the air cylinder (12) is arranged on the air cylinder fixing plane (3), the dial indicator (18) is arranged on the air cylinder fixing plane (3) through the dial indicator bracket (20), the end part of the dial indicator (18) is connected with the lower part of the air cylinder pressing rod (11), the bottom end of the air cylinder pressing rod (11) is propped against the rolling bearing fixing pressure-bearing platform (9), the rolling bearing (10) is arranged at the bottom end of the rolling bearing fixing rod (21) below the bearing fixing pressure-bearing platform (9), the rolling bearing (10) is positioned in the rolling bearing groove (22) on the upper plane of the upper heating plate (8), the pressure sensor (19) is arranged between the air cylinder pressing rod (11) and the rolling bearing fixing pressure-bearing platform (9), and the air cylinder fixing plane horizontal calibration tester (17) is arranged on the upper plane of the air cylinder fixing plane (3);
under the condition of constant acting force of the air cylinder (12), the upper heating plate (8) is inserted and slid to drive the upper glass slide embedded in the upper heating plate and the lower glass slide embedded in the lower heating plate (7) to horizontally shift and move, so that the film is horizontally stretched, stretched and thinned, and the indication number of the dial indicator (18) is the thickness of the film; in the horizontal dislocation sliding process of the glass slide inlaid in the upper heating plate and the lower heating plate, the glass slide is fixed, and the glass slide is pushed by external force to move along the direction parallel to the radial direction of the bearing along with the rotation of the bearing in a horizontal dislocation manner.
2. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: two cylinder fixing plane leveling nuts (4) are arranged on each cylinder fixing plane positioning bolt (5), one cylinder fixing plane leveling nut (4) is located above the cylinder fixing plane (3), and the other cylinder fixing plane leveling nut (4) is located below the cylinder fixing plane (3).
3. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: be provided with temperature sensor (16) in lower hot plate (7), the temperature sensing head of temperature sensor (16) is located lower hot plate (7) central point put, has seted up the through-hole on the position that corresponds with the temperature sensing head of temperature sensor (16) on lower hot plate (7) upper plane for the temperature sensing head of temperature sensor (16) can directly survey the temperature of slide glass down.
4. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the thermoplastic resin is polyoxymethylene, polyethylene, polypropylene, PEO, PPO, nylon, PBT, PET, polyethylene furandicarboxylate, polylactic acid, polysulfone amide or polyether ether ketone.
5. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the heating mode of the lower heating plate (7) and the upper heating plate (8) is electromagnetic heating, heat conduction oil heating or wire heating.
6. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the lower heating plate horizontal calibration tester (15) and the cylinder fixing plane horizontal calibration tester (17) are embedded horizontal bubbles, and the upper plane of the workbench fixing plane (2) is also provided with the embedded horizontal bubbles.
7. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the workbench base leveling device (1) comprises a workbench base leveling bolt (23) and a workbench base leveling nut (24), wherein the workbench base leveling bolt (23) is fixed on the lower plane of the workbench fixing plane (2), and the workbench base leveling nut (24) is installed at the bottom end of the workbench base leveling bolt (23) through threads.
8. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the pressure air source of the air cylinder (12) is steel cylinder air or factory instrument air.
9. The apparatus for preparing a thermoplastic resin film sample for a polarizing microscope according to claim 1, wherein: the lower heating plate (7) and the upper heating plate (8) are metal heating plates made of red copper, stainless steel or aluminum magnesium alloy.
10. The method for using the thermoplastic resin film sample preparation device for a polarizing microscope according to any one of claims 1 to 9, wherein: the method comprises the following specific steps:
(1) leveling a workbench fixing plane (2), an air cylinder fixing plane (3) and a lower heating plate (7);
(2) starting an air source of the air cylinder (12), setting the pressure of the air cylinder (12), pressurizing the air cylinder (12) for the first time, starting a temperature control device, setting the target heating temperature, the heating rate, the cooling rate and the heating time of the heating plate, and preheating the lower heating plate (7) and the upper heating plate (8);
(3) the cylinder (12) is relieved for the first time, the cylinder pressing rod (11) is lifted, a clean upper slide glass is placed in the second groove, a lower slide glass is placed in the first groove, the cylinder (12) is pressurized for the second time, the lower heating plate (7) and the upper heating plate (8) preheat the lower slide glass and the upper slide glass, and the calibration dial indicator (18) is reset to zero;
(4) when the output temperature of the temperature sensor (16) is equal to the target heating temperature of the heating plate, the air cylinder (12) is relieved for the second time, the air cylinder pressure lever (11) is lifted, a dried sample to be measured is placed between a lower slide glass and an upper slide glass, after the dried sample to be measured is melted, the air cylinder (12) is pressurized for the third time, the pushing handle (14) is pulled along one direction, the upper heating plate (8) drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate (7) is not moved, so that the upper heating plate (8) drives the upper slide glass and the lower slide glass in the lower heating plate (7) to horizontally move in a dislocation mode, the thin film horizontally stretches, stretches and thins until the thickness of the thin film reaches the requirement, and the indication of the percentage table (18) is the thickness of the thin film;
(5) if the required film thickness is difficult to achieve through the first horizontal dislocation movement of the upper slide glass and the lower slide glass, the cylinder (12) can be relieved for the third time, the cylinder pressing rod (11) is lifted to replace the upper slide glass, the sample to be detected stuck on the original upper slide glass is removed, only the sample to be detected on the lower slide glass remains, when the output temperature of the temperature sensor (16) is equal to the target heating temperature of the heating plate, the cylinder (12) is pressurized for the fourth time, the pushing handle (14) is pulled along one direction, the upper heating plate (8) drives the upper slide glass to move towards the direction, the lower slide glass in the lower heating plate (7) is not moved, so that the upper heating plate (8) drives the upper slide glass and the lower slide glass in the lower heating plate (7) to horizontally dislocate, the film is horizontally stretched, stretched and thinned, and so on until the thickness of the film reaches the requirement, the indication of the percentage table (18) is the thickness of the film;
(6) the pressure of the air cylinder (12) is relieved, the air cylinder pressure lever (11) is lifted, the lower heating plate (7) and the upper heating plate (8) are stopped to be heated, the upper glass slide and the lower glass slide are taken out after the temperature is cooled to the room temperature, and the upper glass slide and the lower glass slide are placed on the polarizing microscope stage for observation, analysis and characterization.
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