CN113758789B - Device and system for supporting and heating metal sample - Google Patents
Device and system for supporting and heating metal sample Download PDFInfo
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- CN113758789B CN113758789B CN202111058597.1A CN202111058597A CN113758789B CN 113758789 B CN113758789 B CN 113758789B CN 202111058597 A CN202111058597 A CN 202111058597A CN 113758789 B CN113758789 B CN 113758789B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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Abstract
The application relates to a device and a system for supporting a heated metal sample, in particular to the field of supports of heating equipment. The application provides a preparation device for supporting a heated metal sample; when the metal to be heated in vacuum or inert atmosphere needs to be heated, the metal to be heated is arranged at the bottom of the sample tank of the sample tray, inert gas is introduced into the ceramic tube to blow up the metal to be heated and stabilize the metal to be heated to a position to be heated, a heating part is arranged outside the device, heating and melting of the metal to be heated are completed, variable-speed cooling is carried out on the metal to be heated if needed, variable-speed cooling can be carried out on the metal to be heated by the low-temperature inert gas introduced into the ceramic tube at different temperatures, and cooling efficiency of the metal to be heated is greatly improved. Meanwhile, by periodically rotating the sample disc, the heating melting and cooling solidification of a plurality of samples can be realized in one-time vacuum pumping or inert atmosphere under the coordination of the ceramic tube.
Description
Technical Field
The application relates to the field of heating equipment supports, in particular to a device and a system for supporting and heating a metal sample.
Background
The basic principle of the electromagnetic levitation technology is as follows: the suspension coil which is introduced with high-frequency current generates an alternating electromagnetic field, so that induced current is generated on the surface of the conductive sample, and the interaction of the induced current and the alternating electromagnetic field can generate an upward Lorentz force, so that gravity is offset to realize stable suspension. In addition, the induced current on the surface of the sample has a heating effect, thereby achieving heating melting of the heated sample. The electromagnetic levitation technology has the remarkable characteristic that no additional heating equipment is needed, the levitation and the heating are carried out simultaneously, and therefore, the temperature reduction and the deep supercooling of the sample are realized by flowing inert gas. Has important application value in the researches of deep undercooling, rapid solidification and the like of metal materials.
Electromagnetic suspension heating equipment among the prior art sends the sample to coil interior specific position through ceramic tube and carries out suspension heating and cooling, can realize the preparation of deep supercooling rapid solidification sample, because can only carry out the deep supercooling experiment of a sample in once evacuation or inert atmosphere, must cause the experiment failure when the supercooling degree is less or even does not have the supercooling degree and need carry out manifold cycles heating and cooling.
However, the heating device in the prior art is limited to placing the sample on the top end of the ceramic ejector rod, and part of metal can be firstly stuck on the ceramic tube when the surface is preferentially melted, so that impurities and metal loss can be introduced, and artificial errors of experimental data and even experimental failure can be caused.
Disclosure of Invention
The invention aims to provide a device and a system for supporting and heating a metal sample, aiming at overcoming the defects in the prior art, and solving the problems that the heating device in the prior art is limited to placing the sample on the top end of a ceramic ejector rod, part of metal is firstly stuck on a ceramic tube when being melted, impurities and metal loss are introduced, and artificial errors of experimental data are caused, and even the experiment fails.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions: in a first aspect, the present application provides a preparation apparatus for supporting a heated metal specimen, the apparatus comprising: the device comprises a fixed bottom plate, a support rod, a stepping motor, a coupler, an electric push rod, a clamping sleeve, a first fixed base, a second fixed base, a plurality of screws, a ceramic tube and a sample disc; branch and electric putter all set up perpendicularly on PMKD, the other end of branch is provided with step motor, step motor's the other end has set gradually shaft coupling and sample dish, and sample dish is last to be provided with a plurality of sample grooves periodically, the inside through hole that all is provided with of sample groove, electric putter's the other end is provided with first unable adjustment base, a plurality of screw rods and second unable adjustment base set gradually on first unable adjustment base, the cutting ferrule spiro union is in the one side that the second fixed part is close to first fixed part, the one end spiro union that first fixed part was kept away from to the cutting ferrule is provided with ceramic pipe, ceramic pipe's the other end at least with the coaxial setting of a through hole.
Optionally, the ceramic tube has a diameter smaller than the diameter of the through hole of the sample tray.
Optionally, the electric push rod is a telescopic rod, and when the electric push rod is contracted, the top of the ceramic tube is below the plane of the sample tray.
Optionally, the sample wells of the sample tray are flared in shape.
Optionally, the sample wells on the sample tray are periodically arranged.
Optionally, the device further comprises a gas circuit connected with the cutting sleeve and used for blowing gas into the sample groove on the sample plate through the cutting sleeve and the ceramic tube.
In a second aspect, the present application provides a preparation system for supporting a heated metal specimen, the system comprising: the heating part is arranged on one side of the sample plate of the device far away from the fixed bottom plate and is used for heating and melting the metal to be heated on the sample plate.
Optionally, the heating part is an electromagnetic levitation coil.
The beneficial effects of the invention are:
the application provides a support preparation facilities of heating metal sample, the device includes: the device comprises a fixed bottom plate, a support rod, a stepping motor, a coupler, an electric push rod, a clamping sleeve, a first fixed base, a second fixed base, a plurality of screws, a ceramic tube and a sample disc; the supporting rod and the electric push rod are vertically arranged on the fixed bottom plate, the other end of the supporting rod is provided with a stepping motor, the other end of the stepping motor is sequentially provided with a coupler and a sample disc, a plurality of sample grooves are periodically arranged on the sample disc, through holes are formed in the sample grooves, the other end of the electric push rod is provided with a first fixed base, a plurality of screws and a second fixed base are sequentially arranged on the first fixed base, a clamping sleeve is screwed on one side, close to the first fixed part, of the second fixed part, one end, far away from the first fixed part, of the clamping sleeve is provided with a ceramic tube in a screwed mode, and the other end of the ceramic tube is at least coaxially arranged with one through hole; when the metal to be heated in vacuum or inert atmosphere needs to be heated, the device is arranged in vacuum or inert atmosphere, arranging the metal to be heated in the sample groove of the sample disc, introducing gas into the ceramic tube to blow the metal to be heated to the position to be heated, further changing the heating position and the heating environment of the metal to be heated, by arranging a heating part outside the device, thereby completing the heating of the metal to be heated, and if the metal to be heated needs to be cooled, the ceramic tube can be used for introducing gas to cool the metal to be heated, so that the efficiency of heating and cooling the metal to be heated is greatly improved, namely, because the metal to be heated can be blown up and cooled down through the ceramic tube, the problems that the molten metal to be heated is stuck on the surface of the ceramic tube and impurities and metal loss are introduced can be avoided; in addition, the sample table comprises a plurality of sample grooves, so that the device can heat, melt and cool various metals to be heated in vacuum or inert atmosphere at one time, and further the efficiency of heating, melting and cooling and solidifying in an electromagnetic suspension experiment is improved. This application is through the lift of control electric putter, step motor's rotation and to the control of gas temperature and flow, can realize once the evacuation and carry out the many times heating melting of the circulation of a plurality of metals of treating heating and variable speed cooling solidification.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a preparation apparatus for supporting a heated metal sample according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fixing base plate supporting a heated metal sample preparation apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a support rod for supporting a heated metal sample preparation apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an electric putter supporting a device for preparing a heated metal sample according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a ceramic tube for supporting a heated metal specimen preparation apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sample tray supporting a heated metal sample preparation apparatus according to an embodiment of the present invention.
Icon: 10-fixing the bottom plate; 20-a strut; 30-an electric push rod; 40-a stepper motor; 50-a coupler; 60-sample tray; 61-sample cell; 62-a through hole; 70-a first stationary base; 80-screw rod; 90-cutting ferrule; 91-a second stationary base; 92-ceramic tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are one embodiment of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the implementation of the present invention clearer, the following detailed description is made with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a preparation apparatus for supporting a heated metal sample according to an embodiment of the present invention; as shown in fig. 1, the present application provides a preparation apparatus for supporting a heated metal specimen, the apparatus comprising: the device comprises a fixed bottom plate 10, a support rod 20, a stepping motor 40, a coupler 50, an electric push rod 30, a clamping sleeve 90, a first fixed base 70, a second fixed base 91, a plurality of screws 80, a ceramic tube 92 and a sample disc 60; branch 20 and electric putter 30 all set up perpendicularly on PMKD 10, the other end of branch 20 is provided with step motor 40, step motor 40's the other end has set gradually shaft coupling 50 and sample dish 60, and sample dish 60 is gone up the cycle and is provided with a plurality of sample cell 61, sample cell 61 inside all is provided with through hole 62, electric putter 30's the other end is provided with first unable adjustment base, a plurality of screw rods 80 and second unable adjustment base 91 set gradually on first unable adjustment base, cutting ferrule 90 sets up the one side that is close to first fixed part at the second fixed part, the one end spiro union that first fixed part was kept away from to cutting ferrule 90 is provided with ceramic tube 92, ceramic tube 92's the other end at least sets up with a through hole 62 is coaxial.
For ease of understanding, the parts of the apparatus for preparing a sample of seed-supported heated metal of the present application are described separately below, and for ease of description, the apparatus for preparing a sample of seed-supported heated metal is referred to herein simply as the apparatus:
FIG. 2 is a schematic structural diagram of a fixing base plate for supporting a heated metal specimen preparation apparatus according to an embodiment of the present invention; as shown in fig. 2, firstly, a fixing base plate 10 is used for fixing the device of the present application, since the present application can be used in a vacuum or inert atmosphere environment, for convenience of description, the fixing base plate 10 is used for fixing the present application in a vacuum or inert atmosphere environment, the fixing base plate 10 fixes the device of the present application on the surface inside the vacuum or inert atmosphere environment, the material and the specific shape of the fixing base plate 10 are set according to actual requirements, and are not particularly limited herein, generally, the fixing plate is a plate having a rigid structure as a whole, the shape of the fixing base plate 10 is circular, a plurality of screw holes are formed in the circular shape, and the device of the present application is fixed in an environment to be measured through the screw holes.
FIG. 3 is a schematic structural view of a support rod supporting a heated metal sample preparation apparatus according to an embodiment of the present invention; as shown in fig. 3, the supporting rod 20 is vertically disposed on the fixed base plate 10 for supporting the stepping motor 40 and the base, since the fixed base plate 10 is generally parallel to the horizontal plane, the supporting rod 20 is generally disposed perpendicular to the horizontal plane, the material and shape of the supporting rod 20 are set according to actual requirements, generally, the supporting rod 20 is a rigid material, and the shape of the supporting rod 20 is a cylinder or a prism.
Thirdly, the stepping motor 40 is arranged between the support rod 20 and the coupler 50, the stepping motor 40 is used for enabling the coupler 50 and the sample tray 60 arranged on the coupler 50 to rotate according to setting, and the model and the specification of the stepping motor 40 are arranged according to actual needs and are not specifically limited.
The coupler 50 is arranged between the stepping motor 40 and the sample disk 60, so that the sample disk 60 can stably rotate when the stepping motor 40 rotates, and in practical application, the coupler 50 is a device which connects two shafts or a shaft and a rotating member, rotates together in the process of transmitting motion and power and does not separate under normal conditions. Sometimes used as a safety device to prevent the connected parts from bearing excessive load and to protect against overload, and the coupling 50 is a rigid coupling, which is generally made of stainless steel.
FIG. 4 is a schematic structural view of an electric putter supporting a device for preparing a heated metal sample according to an embodiment of the present invention; as shown in fig. 4, etc. the electric putter 30 is vertically disposed on the fixed base 10, the electric putter 30 is parallel to the support rod 20 because the electric putter 30 can be driven by a motor, the type of the motor is not limited in this case, and the other end of the electric putter 30 is disposed with a fixed part.
Sixthly, a first fixing base 70, a second fixing base 91 and a plurality of screws 80, wherein the three structures form an object placing structure with a space structure, the two ends of each screw 80 are respectively provided with the first fixing base 70 and the second fixing base 91, in practical application, the screws 80 are respectively connected with the edge positions, close to the first fixing base 70 and the second fixing base 91, so that a certain accommodating space is formed between the first fixing base 70 and the second fixing base 91, the accommodating space can be used for arranging the clamping sleeve 90, the specific sizes and the number of the screws 80 are set according to actual needs, the shapes and the geometrical sizes of the first fixing base 70 and the second fixing base 91 are determined according to the specific needs of the accommodating space, and no specific limitation is made here. In addition, a hole is arranged in the middle of the second fixed bottom.
Seventhly, the cutting sleeve 90 is arranged in the object placing space formed by the first fixing base 70, the second fixing base 91 and the plurality of screws 80, the cutting sleeve 90 is generally arranged in a through hole structure, when the ceramic tube 92 is arranged on the cutting sleeve 90, air can be introduced through the other end of the cutting sleeve 90, the air enters the ceramic tube 92 through the cutting sleeve 90, the cutting sleeve 90 is clamped at the center of the second fixing base 91 through a nut, the center of a through hole of the cutting sleeve 90 and the center of the ceramic tube 92 are coaxial, the ceramic tube 92 is firstly placed in the through hole of the cutting sleeve 90, and then locking and fixing are carried out through a special nut. In practical application, the cutting ferrule 90 is clamped in the center of the second fixing base 91 through a nut, so that the center of the cutting ferrule 90 penetrating through the second fixing base 91 is coaxial with the ceramic tube 92, and in addition to the coaxiality of the two parts, the cutting ferrule 90 is coaxial with one penetrating hole of the sample disc 60 in an experiment. The ceramic tube 92 is firstly placed in a through hole of the tube on the cutting sleeve 90 and then locked and fixed through a special nut, the special nut is a nut matched with the ceramic tube 92 and the cutting sleeve 90, specific types and specific parameters of the nut are not specifically limited, as long as the cutting sleeve 90 can be screwed, and the ceramic tube 92 is screwed in a manner vertical to the horizontal plane.
FIG. 5 is a schematic diagram of a ceramic tube for supporting a heated metal specimen preparation apparatus according to an embodiment of the present invention; as shown in fig. 5, one end of the ceramic tube 92 is extended into the hole of the second fixing plate to connect with the ferrule 90, the ceramic tube 92 is a hollow structure, the gas entering the ferrule 90 can enter the interior of the ceramic tube 92, that is, when the metal to be heated is heated or cooled, it is necessary to blow the metal to be heated by gas, or through the ceramic tube 92, and, in addition, due to the presence of the electric putter 30, the ceramic tube 92 moves up and down under the driving of the electric push rod 30, and when the ceramic tube 92 moves up under the action of the electric push rod 30, the ceramic tube 92 passes through a through-hole 62 of the sample tray 60, and when the ceramic tube 92 is moved downward by the power push rod 30, the ceramic tube 92 is removed from the through hole 62 of the sample tray 60, and the ceramic tube 92 is moved upward or downward to change the position of the gas discharged through the ceramic tube 92.
FIG. 6 is a schematic diagram of a sample tray supporting a heated metal sample preparation device according to an embodiment of the present invention; as shown in fig. 6, a plurality of sample grooves 61 are arranged on the ninthly sample tray 60, and a through hole 62 is arranged inside each sample groove 61, the sample grooves 61 can rotate under the action of the stepping motor 40 to change the sample grooves 61 corresponding to the ceramic tubes 92, the sample grooves 61 on the sample tray 60 can be set to be the same or different, generally, the wall of the sample groove 61 on the sample tray 60 is set to be a wall with a radian, so that the gas entering the sample groove 61 from the ceramic tubes 92 can be more uniform and smooth, and in practical application, the sample tray 60 is generally made of aluminum alloy or stainless steel.
When the device needs to heat the metal to be heated in vacuum or inert atmosphere, the device is arranged in vacuum or inert atmosphere, the metal to be heated is arranged inside the sample groove 61 of the sample tray 60, and gas is introduced into the ceramic tube 92 to blow the metal to be heated to the position to be heated, so that the heating position and the heating environment of the metal to be heated are changed, the heating of the metal to be heated is completed by arranging the heating part outside the device, and if the metal to be heated needs to be cooled, the gas can be introduced into the ceramic tube 92 to cool the metal to be heated, so that the heating and cooling efficiency of the metal to be heated is greatly improved, namely, because the metal to be heated can be blown up and cooled by the ceramic tube 92, the molten metal to be heated can be prevented from being adhered to the surface of the ceramic tube 92, introducing the problem of impurities and loss of metal.
Optionally, the ceramic tube 92 has a diameter smaller than the smallest diameter of the through hole 62 of the sample tray 60.
The diameter of the ceramic tube 92 is set to be smaller than the minimum diameter of the through hole 62, so that the ceramic tube 92 is not affected by the through hole 62 when entering the through hole 62 or being far away from the through hole 62, and in practical applications, the shape of the ceramic tube 92 is generally set to be a hollow conical structure, that is, the diameter of the position with the largest diameter of the ceramic tube 92 is still smaller than the diameter of the through hole 62, and the opening position of the ceramic tube 92 is smaller than the inside due to the conical ceramic tube 92, so that the flow rate is improved after the same gas is blown out through the ceramic tube 92.
Alternatively, the power rod 30 is a telescoping rod, and when the power rod 30 is retracted, the top of the ceramic tube 92 is below the plane of the sample plate 60.
The electric push rod 30 is set as a telescopic rod, when the electric push rod 30 is contracted, the highest position of the ceramic tube 92 is still lower than the plane of the lowest position of the sample tray 60, when the sample groove 61 of the sample tray 60 corresponding to the ceramic tube 92 needs to be changed, after the electric push rod 30 is contracted, the top of the ceramic tube 92 is under the plane of the sample tray 60, and then the stepping motor 40 is driven to change the sample groove 61 of the sample tray 60 corresponding to the ceramic tube 92.
Alternatively, the sample wells 61 of the sample tray 60 are flared in shape.
The horn-shaped sample cell 61 enables the air flow to uniformly act on the sample to be heated when the sample to be heated is arranged in the sample cell 61 for heating, so that the heating and cooling time of the sample to be heated is shortened, in addition, the general sample stage is arranged into a horn-shaped structure, the minimum diameter of the horn-shaped structure is arranged to be slightly larger than the diameter of the Tianci tube, generally, the maximum diameter of the horn-shaped structure is larger than the minimum radius by 4mm, and the depth of the horn-shaped sample cell 61 is arranged to be 2 mm; depending on the equipment, the size of the sample plate 60 may vary and the size of the trumpet may vary, but the critical dimensional requirements should be as described above. The beneficial effects are that: ensuring that the sample is positioned in the center of the periodically arranged through holes 62, and facilitating the gas blown out from the ceramic tube 92 to blow up or jack up the sample; the sample after convenient heating cooling is retrieved and is satisfied the needs of circulation heating and cooling, and this sample groove 60 sets up to the horn structure and avoids popping out the sample of waiting to heat.
Alternatively, the sample wells 61 on the sample tray 60 are periodically arranged.
The period of arranging the sample grooves 61 on the sample tray 60 is determined according to actual needs, and is not particularly limited herein, generally, the sample grooves 61 are arranged around the edge position of the sample tray 60, so that each sample groove 61 has a larger reaction space, that is, the utilization rate of the sample tray 60 of the present application is improved.
Optionally, the apparatus further comprises a gas circuit connected to the ferrule 90 for blowing gas through the ferrule 90 and the ceramic tube 92 into the interior of the sample well 61 on the sample plate 60.
This gas circuit setting is inside this first unable adjustment base 70, second unable adjustment base 91, the storage space that a plurality of screw rods 80 formed, and this gas circuit is used for when the heating is waited to heat the metal, provides the air current and blows up this metal of waiting to heat, when treating to heat the metal and cool off, provides the cooling air current for this cooling of waiting to heat the metal, so set up, improved the heating and the cooling efficiency of waiting to heat the metal. The gas circuit is connected with an inert gas cylinder and the other end of the clamping sleeve, and is also provided with a mass flow meter and a gas cooling device.
The application provides a preparation system for supporting a heated metal sample, the system comprising: a heating part and any one of the above-mentioned preparation devices for supporting a heated metal sample, the heating part being provided on a side of the sample plate 60 of the device away from the fixed base plate 10 for heating the metal to be heated on the sample plate 60.
Optionally, the heating part is an electromagnetic levitation coil.
The heating part can be an electromagnetic suspension heating coil which can suspend, heat and melt the metal to be heated.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An apparatus for supporting a heated metal specimen, the apparatus comprising: the device comprises a fixed bottom plate, a support rod, a stepping motor, a coupler, an electric push rod, a clamping sleeve, a first fixed base, a second fixed base, a plurality of screws, a ceramic tube and a sample disc; the supporting rod and the electric push rod are vertically arranged on the fixed bottom plate, the stepping motor is arranged at the other end of the supporting rod, the coupler and the sample disc are sequentially arranged at the other end of the stepping motor, a plurality of sample grooves are periodically arranged on the sample disc, through holes are formed in the sample grooves, the first fixed base is arranged at the other end of the electric push rod, a plurality of screw rods and the second fixed base are sequentially arranged on the first fixed base, the clamping sleeve is screwed on one side, close to the first fixed base, of the second fixed base, the ceramic pipe is screwed at one end, away from the first fixed base, of the clamping sleeve, and the other end of the ceramic pipe is at least coaxially arranged with one through hole; the device also comprises an air path, wherein the air path is connected with the clamping sleeve and used for blowing inert gas through the clamping sleeve and the ceramic tube to stably suspend to a specified position and carrying out variable speed cooling on the heated and melted metal to be heated.
2. The apparatus for supporting a heated metal specimen of claim 1, wherein the ceramic tube has a diameter less than the smallest diameter of the through-hole of the specimen tray.
3. The apparatus for supporting a heated metal specimen of claim 2, wherein the motorized push rod is a telescoping rod and the top of the ceramic tube is below the plane of the specimen tray when the motorized push rod is retracted.
4. The apparatus for supporting a heated metal specimen according to claim 3, wherein the specimen well of the specimen tray is flared in shape.
5. The apparatus for supporting a heated metal specimen of claim 4, wherein the specimen wells on the specimen tray are periodically arranged.
6. A system for supporting a heated metal specimen, the system comprising: a heating part and the device for supporting a heated metal sample as claimed in any one of claims 1 to 5, wherein the heating part is arranged on the side of the sample plate of the device far away from the fixed base plate and is used for heating and melting the metal to be heated on the sample plate.
7. The system for supporting a heated metal specimen of claim 6, wherein the heating portion is an electromagnetic levitation coil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111058597.1A CN113758789B (en) | 2021-09-10 | 2021-09-10 | Device and system for supporting and heating metal sample |
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| CN202111058597.1A CN113758789B (en) | 2021-09-10 | 2021-09-10 | Device and system for supporting and heating metal sample |
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