CN209930542U - Heating device and comprehensive heat treatment system for preparing long wire superconductor - Google Patents
Heating device and comprehensive heat treatment system for preparing long wire superconductor Download PDFInfo
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- CN209930542U CN209930542U CN201920080906.7U CN201920080906U CN209930542U CN 209930542 U CN209930542 U CN 209930542U CN 201920080906 U CN201920080906 U CN 201920080906U CN 209930542 U CN209930542 U CN 209930542U
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Abstract
The utility model discloses a heating device and be used for preparing long wire rod superconductor's comprehensive heat treatment system. The heating device comprises a heating device body, wherein the heating device body comprises a plurality of light sources, each light source corresponds to one reflecting surface, each light source is arranged at the position of a first focus of the corresponding reflecting surface, the second focuses of all the reflecting surfaces are overlapped, the reflecting surfaces of all the reflecting surfaces face the second focuses, and all the first focuses are uniformly distributed on one circumference. Application a heating device, according to oval nature, the light that a focus sent in the ellipse promptly passes through after the plane of reflection, the nature of another focus must be crossed to reflected light, utilize a plurality of to evenly set up light source and corresponding the plane of reflection assembles light second focus department makes and is located or passes through the object thermally equivalent of second focus department, this heating device simple structure, convenient to use, it is respond well.
Description
Technical Field
The utility model relates to a heating technology field, in particular to heating device and be used for preparing long wire rod superconductor's comprehensive heat treatment system.
Background
One of the best methods for preparing a high-performance superconducting long wire is a rapid heating and cooling (RHQ) heat treatment method, which needs to continuously and rapidly heat a superconducting precursor wire (which does not have superconducting performance) to about 2000 ℃ in an extremely short time by ohmic heating (about 0.1 second), so that a large current is needed, and then the superconducting precursor wire is rapidly cooled to 30-50 ℃, but because the processing precision of the superconducting precursor wire is difficult to ensure the uniformity and the wire fluctuates, the resistance fluctuation of a heated section of the wire is not uniform, and the wire is easy to break in the RHQ heat treatment process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the adoption that exists among the prior art during the continuous rapid heating superconductive precursor wire rod of great current ohmic heating, because superconductive precursor wire rod machining precision is difficult to guarantee that homogeneity and wire rod are undulant to cause the wire rod by the fluctuation of heating section resistance inhomogeneous, lead to the above-mentioned not enough of wire rod easy broken string in the RHQ heat treatment process, provide a heating device and be used for preparing the comprehensive heat treatment system of long wire rod superconductor.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
the heating device comprises a heating device body, wherein the heating device body comprises a plurality of light sources, each light source corresponds to a reflecting surface with an oval cross section, each light source is arranged at a corresponding oval first focus of the reflecting surface, all oval second focuses of the reflecting surfaces coincide, all the reflecting surfaces face to the second focuses, and all the first focuses are in a circle.
When the existing RHQ device is used for preparing a superconducting wire, the resistance of the wire is not uniform due to the non-uniform components of the wire, and the energy density per unit volume of the wire needs to reach 50J/mm when the temperature of the wire is required to reach 1910-3Under the condition of constant direct current, according to Joule's law Q ═ I2Rt, the variation of resistance Δ R is amplified by I2However, the current of the direct current is often larger, the larger the diameter of the wire is, the larger the direct current is required to be, and the local temperature of the wire is too high to cause wire breakage during ohmic heating, so that the smaller current I is introducedRHQThe energy density fluctuation of the unit volume in the length direction of the wire rod can be obviously reduced, and the wire breakage rate is further greatly reduced.
Adopt a heating device, according to oval nature, the light that a focus sent in oval promptly passes through after the plane of reflection, the nature of another focus must be crossed to reflected light, utilize a plurality of to evenly set up light source and corresponding the plane of reflection assembles light second focus department makes and is located or passes through the object thermally equivalent of second focus department, application is during superconducting wire's RHQ thermal treatment, owing to let in less electric current IRHQThe wire breakage rate can be reduced by reducing the energy density fluctuation per unit volume in the length direction of the wire, and the wire unit bodyThe energy density is less than 50J/mm3Therefore, the heating device is adopted for auxiliary heating to ensure that the energy density per unit volume of the wire reaches 50J/mm3The heating device has the advantages of simple structure, convenient use and good effect, and can not bring fluctuation and meet the requirements of the RHQ heat treatment process.
Preferably, the light source is a linear light source.
By adopting the structure, the length direction of the linear light source is parallel to the length direction of the reflecting surface, so that an object positioned at or passing through the second focus can be uniformly heated in the distance of the length direction of the linear light source, namely, the heating section is increased, and the object can be fully heated.
Preferably, all the reflecting surfaces are symmetrically arranged in the heating device body and enclose a hollow tubular structure.
Preferably, the light source is a halogen lamp.
Preferably, the reflecting surface of each reflecting surface is plated with a reflecting film.
The utility model also provides a heat treatment system, including inclosed box, be equipped with sealing door on the box, still include:
the vacuum pump is arranged outside the box body, is mutually communicated with the interior of the box body and is used for forming a vacuum cavity in the box body;
the pay-off wheel is arranged in the box body and used for arranging the wire to be processed;
the electrode wheel set is arranged in the box body and comprises an electrode wheel and a synchronous driven wheel, the electrode wheel and the synchronous driven wheel are arranged in a circumferential tangent mode, the wire is led out by the pay-off wheel and then penetrates through a position between the electrode wheel and the synchronous driven wheel, and the electrode wheel is used for heating the penetrating wire;
the power supply is respectively connected with the vacuum pump and the electrode wheel and is used for carrying out ohmic heating on the wire through the electrode wheel;
the heating device is arranged in the box body and connected with the power supply, and the wire is led out from the synchronous driven wheel and then passes through the second focus;
the gallium liquid tank is arranged in the box body, metal gallium liquid is arranged in the gallium liquid tank, and the metal gallium liquid is used for cooling the heated wire;
the guide wheel is arranged in the box body and is positioned at the gallium liquid tank, the wire is led out from the second focus and then bypasses the guide wheel, and the wire is immersed in the gallium metal liquid by the guide wheel;
the driving wheel set is arranged in the box body and comprises a synchronous driving wheel and a second auxiliary wheel, the synchronous driving wheel and the second auxiliary wheel are arranged in a circumferential tangent mode, and the wire is led out by the guide wheel and then penetrates between the synchronous driving wheel and the second auxiliary wheel;
the motor is connected with the synchronous driving wheel and communicated with the power supply and is used for driving the synchronous driving wheel to rotate;
the synchronous transmission belt is arranged in the box body and is connected with the synchronous driving wheel and the synchronous driven wheel;
the take-up pulley is arranged in the box body, the take-up pulley and the pay-off pulley are arranged in a circumferential tangent mode, and the wires are collected and arranged into coils by the take-up pulley after being led out by the synchronous driving wheel.
The heat treatment system is mainly used for NbTi and Nb3Sn、Nb3RHQ heat treatment of low-temperature wire material such as Al.
Adopt a heat treatment system, the vacuum pump will after the evacuation in the box, the motor rotates and drives synchronous drive wheel rotates, because synchronous drive belt's effect synchronous follow driving wheel also rotates, under the effect of frictional force, wire motion and pulling the actinobacillus wheel rotates, the rotation of actinobacillus wheel drives the take-up pulley rotates, the take-up pulley will the wire rod is collected, pass through in the wire rod motion process the electrode wheel is fast hot and pass through gallium metal liquid is fast cold, and whole device is drawn by a single motor and is provided power, has avoided the problem of the speed deviation that can produce between a plurality of power supplies, has reduced the possibility of broken string, simultaneously, because the electrode wheel lets in less electric current IRHQThe wire breakage rate can be reduced by reducing the energy density fluctuation of the unit volume of the wire in the length direction, and the energy density of the unit volume of the wire can reach less than 50J/mm3So that the heating device is adopted to assist in heating to enable the energy density per unit volume of the wire rod to reach 50J/mm3The system does not bring fluctuation, realizes the RHQ heat treatment of the wire rod in a vacuum environment, and has simple structure, convenient use and good effect.
Preferably, the heat treatment system further comprises an arranging wheel set, the arranging wheel set is arranged in the box body and comprises an arranging wheel and a first auxiliary wheel, the arranging wheel and the first auxiliary wheel are circumferentially arranged in a tangent mode, and the wire is led out by the pay-off wheel, penetrates through a position between the arranging wheel and the first auxiliary wheel and then is led to the electrode wheel set.
By adopting the structure, the arrangement wheel set is used for arranging the wires led out from the pay-off wheel, adjusting the entering direction and angle of the wires and avoiding knotting or wheel dropping of the wires.
Preferably, the electrode wheel is a copper structural member.
Preferably, the motor is a servo motor.
Preferably, the heat treatment device further comprises a brake, the brake is arranged in the box body and connected with the power supply, and the brake is used for braking the synchronous driving wheel.
Preferably, an infrared temperature measurement window is arranged on the box body, an infrared temperature measurement instrument is arranged outside the corresponding box body, and the infrared temperature measurement instrument is used for detecting the maximum temperature value of the wire rod of the heating section.
Preferably, a pressure relief valve is arranged on the box body.
By adopting the structure, the pressure relief valve can be communicated with the inside and the outside of the box body and is used for placing air after the heat treatment of the wire rod to be processed on the paying-off wheel is finished so as to open the sealing door.
Preferably, a heating circuit is arranged in the box body and communicated with the power supply, and the heating circuit is used for heating and removing moisture in the box body before the vacuum pump works.
Preferably, the heating circuit is connected with the gallium liquid tank and used for heating the metal gallium liquid, and when the environmental temperature in winter is lower than the melting point of the metal gallium, the metal gallium is heated and liquefied to meet the RHQ heat treatment requirement.
Preferably, a vacuum gauge is arranged in the box body and used for detecting the air pressure in the box body.
Preferably, an environment thermometer is arranged in the box body, and after the box body forms a vacuum cavity, parts such as the motor and the like have certain requirements on the temperature of a working environment, so that the temperature in the vacuum cavity of the box body needs to be detected.
Preferably, the gallium liquid bath is a stainless steel bath.
Preferably, a gallium liquid thermometer is arranged on the gallium liquid tank and used for measuring the temperature of the liquid gallium, and the temperature of the liquid gallium needs to be lower than 60 ℃.
Preferably, a video monitoring part is arranged in the box body and used for recording each processing process, recorded videos can be used for finding problems possibly occurring in the processing process, reasons can be analyzed afterwards, and the whole processing process is continuously improved.
Preferably, a transparent panel is arranged on the box body, and the transparent panel is used for observing the situation of the box body during processing outside the box body.
Preferably, the transparent panel is glass.
Preferably, the heat treatment system further comprises an induction heating coil arranged in the box body, the induction heating coil is connected with the power supply, and the wire is led out from the second focus, passes through the induction heating coil and is led to the guide wheel.
With this arrangement, the induction heating coil can assist in heating the wire rod to an energy density per unit volume of 50J/mm3And fluctuation is avoided, and the requirements of the RHQ heat treatment process are met.
Preferably, the induction heating coil is a high frequency induction coil.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. application a heating device, according to oval nature, the light that a focus sent in the ellipse promptly passes through after the plane of reflection, the nature of another focus must be crossed to reflected light, utilize a plurality of to evenly set up light source and corresponding the plane of reflection assembles light second focus department makes and is located or passes through the object thermally equivalent of second focus department, application is during superconducting wire's RHQ thermal treatment, owing to let in less electric current IRHQThe wire breakage rate can be reduced by reducing the energy density fluctuation of the unit volume in the length direction of the wire rod, and the energy density of the unit volume of the wire rod can reach less than 50J/mm3Therefore, the heating device is adopted for auxiliary heating to ensure that the energy density per unit volume of the wire reaches 50J/mm3The heating device has the advantages that fluctuation is avoided, the requirements of the RHQ heat treatment process are met, the heating device is simple in structure, convenient to use and good in effect;
2. by applying the heating device, the light source is a linear light source, and by adopting the structural arrangement, the length direction of the linear light source is parallel to the length direction of the reflecting surface, so that an object positioned at or passing through the second focus can be uniformly heated within the distance of the length direction of the linear light source, namely, the heating section is increased, and the object can be fully heated;
3. application a heat treatment system, the vacuum pump will after the evacuation in the box, the motor rotates and drives synchronous drive wheel rotates, because synchronous drive belt's effect synchronous follow driving wheel also rotates, under the effect of frictional force, wire motion and pulling the actinobacillus wheel rotates, the rotation of actinobacillus wheel drives the take-up pulley rotates, the take-up pulley will the wire rod is collected, pass through in the wire rod motion process the electrode wheel is fast hot and pass through gallium metal liquid is fast cold, and whole device is drawn by a single motor and is provided power, has avoided the problem of the speed deviation that can produce between a plurality of power supplies, has reduced the possibility of broken string, simultaneously, because the electrode wheelA smaller current I is introducedRHQThe wire breakage rate can be reduced by reducing the energy density fluctuation of the unit volume of the wire in the length direction, and the energy density of the unit volume of the wire can reach less than 50J/mm3So that the heating device is adopted to assist in heating to enable the energy density per unit volume of the wire rod to reach 50J/mm3The system does not bring fluctuation, realizes the RHQ heat treatment of the wire rod in a vacuum environment, and has simple structure, convenient use and good effect;
4. by applying the heat treatment system, the box body is provided with the pressure relief valve, and by adopting the structure, the pressure relief valve can be communicated with the inside and the outside of the box body and used for putting air into the paying-off wheel after the heat treatment of the wire rods to be processed is finished so as to open the sealing door;
5. by applying the heat treatment system, the arranging wheel set is arranged in the box body and comprises an arranging wheel and a first auxiliary wheel, the arranging wheel and the first auxiliary wheel are arranged in a tangent mode, the wire is led out by the pay-off wheel and then passes through the arranging wheel and the first auxiliary wheel, and then is led to the electrode wheel set;
6. application a heat treatment system, induction heating coil locates in the box, induction heating coil connects the power, the wire rod by pass after the second focus is drawn induction heating coil, the redirecting to the guide wheel adopts this kind of structure setting, induction heating coil can the auxiliary heating the wire rod makes its unit volume energy density reach 50J/mm3And fluctuation is avoided, and the requirements of the RHQ heat treatment process are met.
Drawings
Fig. 1 is a schematic structural diagram of a heating device according to the present invention;
FIG. 2 is a top cross-sectional view of FIG. 1;
fig. 3 is a schematic structural view of a heat treatment system according to the present invention.
The labels in the figure are: 01-wire, 1-box, 11-paying out wheel, 12-finishing wheel group, 121-finishing wheel, 122-first auxiliary wheel, 13-electrode wheel group, 131-electrode wheel, 132-synchronous driven wheel, 14-gallium liquid tank, 15-guide wheel, 16-driving wheel group, 161-synchronous driving wheel, 162-second auxiliary wheel, 17-synchronous transmission belt, 18-take-up wheel, 2-vacuum pump, 3-power supply, 4-heating device body, 41-light source, 42-reflecting surface and 5-induction heating coil.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-2, the heating device of the present invention comprises a heating device body 4.
The heating device body 4 comprises a plurality of light sources 41, each light source 41 corresponds to a reflecting surface 42 with an elliptical cross section, each light source 41 is arranged at a first elliptical focus of the corresponding reflecting surface 42, the second elliptical focuses of all the reflecting surfaces 42 are overlapped, the reflecting surfaces of all the reflecting surfaces 42 face the second focuses, all the first focuses are uniformly distributed on a circumference, all the reflecting surfaces 42 are symmetrically arranged in the heating device body 4 and form a hollow tubular structure in a surrounding mode, each light source 41 is a high-power halogen lamp, and the reflecting surface of each reflecting surface 42 is plated with a reflecting film. The reflecting surface is a semi-elliptical curved surface. As shown in fig. 1, four reflecting surfaces 42 are disposed in the heating device body 4, each reflecting surface 42 is in a curved surface structure with a semi-elliptical cross section, and the four reflecting surfaces 42 are symmetrically disposed in the heating device body 4 end to end and enclose a closed tubular structure with two hollow ends.
As a preferable solution of this embodiment, the light source 41 is a linear light source, and with this structure, the length direction of the linear light source is parallel to the length direction of the reflection surface 42, so that the object located at or passing through the second focus can be uniformly heated within the distance in the length direction of the linear light source, that is, the heating section is increased, and the object can be sufficiently heated.
When the conventional RHQ device is used for preparing a superconducting wire 01, the resistance of the wire 01 is not uniform due to the non-uniform components, and the energy density per unit volume of the wire 01 needs to reach 50J/mm when the temperature of the wire 01 is required to reach 1910-2060 DEG C3When constant direct current is applied, the variation Δ R of the resistance is amplified by I2Rt according to joule's law Q2However, the current of the direct current is often larger, and the larger the diameter of the wire 01 is, the larger the direct current is required to be, so that the local temperature of the wire 01 is overhigh and the wire is broken when ohmic heating is caused, and therefore, the smaller current I is introducedRHQThe energy density fluctuation of the unit volume of the wire rod 01 in the length direction can be obviously reduced, and the wire breakage rate is further greatly reduced.
Application a heating device, according to oval nature, the light that a focus sent in the ellipse promptly passes through reflecting surface 42 reflects the back, and the nature of another focus is must crossed to reflected light, utilizes a plurality of to evenly set up light source 41 with correspond reflecting surface 42 assembles light second focus department, makes to be located or pass through the object thermally equivalent of second focus department, application is during superconducting wire 01's RHQ thermal treatment, owing to let in less electric current IRHQThe wire breakage rate can be reduced by reducing the fluctuation of the energy density per unit volume in the length direction of the wire rod 01, and the energy density per unit volume of the wire rod 01 can be less than 50J/mm3Therefore, the heating device is adopted to assist in heating so that the energy density per unit volume of the wire rod 01 reaches 50J/mm3The heating device has the advantages of simple structure, convenient use and good effect, and can not bring fluctuation and meet the requirements of the RHQ heat treatment process.
Example 2
As shown in FIG. 3, the heat treatment system of the present invention is used for Nb3RHQ heat treatment of Al low-temperature wire, the device comprises a closed box body 1, wherein a sealing door is arranged on the box body 1The method also comprises the following steps:
the vacuum pump 2 is arranged outside the box body 1, is communicated with the interior of the box body 1, and is used for forming a vacuum cavity in the box body 1 so as to ensure that the cavity obtains a vacuum degree of less than 0.001 Pa;
the vacuum gauge is arranged in the box body 1 and used for detecting the air pressure in the box body 1;
the pressure relief valve is arranged on the box body 1, can be communicated with the inside and the outside of the box body 1, and is used for putting air into the paying-off wheel 11 after the heat treatment of the wire 01 to be processed is finished so as to open the sealing door;
the paying-off wheel 11 is arranged in the box body 1 and used for arranging the wire 01 to be processed;
the arrangement wheel set 12 is arranged in the box body 1 and comprises an arrangement wheel 121 and a first auxiliary wheel 122, the arrangement wheel 121 and the first auxiliary wheel 122 are circumferentially and tangentially arranged, the wire 01 is led out by the pay-off wheel 11 and then passes through a position between the arrangement wheel 121 and the first auxiliary wheel 122, and the arrangement wheel set 12 is used for arranging the wire 01 led out by the pay-off wheel 11, adjusting the entering direction and angle of the wire 01 and avoiding knotting or wheel dropping of the wire 01;
the electrode wheel set 13 is arranged in the box body 1 and comprises an electrode wheel 131 and a synchronous driven wheel 132, the electrode wheel 131 and the synchronous driven wheel 132 are arranged in a circumferential tangent mode, the wire 01 is led out by the finishing wheel 121 and then penetrates through the space between the electrode wheel 131 and the synchronous driven wheel 132, the electrode wheel 131 is a copper structural part, and the electrode wheel 131 is used for rapidly heating the penetrating wire 01 to about 2000 ℃;
the linear velocity measuring instrument is arranged in the box body 1, is positioned between the arranging wheel set 12 and the electrode wheel set 13, and is used for measuring the actual running speed of the wire rod 01 and monitoring the speed to meet the requirements of fast heating and fast cooling of the wire rod 01;
the power supply 3 is respectively connected with the vacuum pump 2 and the electrode wheel 131 and is used for carrying out ohmic heating on the wire rod 01 through the electrode wheel 131;
the heating device according to embodiment 1, which is disposed in the case 1, is connected to the power source 3, and the wire 01 is led out from the synchronous driven pulley 132 and then passes through the second focal point;
the induction heating coil 5 is arranged in the box body 1 and connected with the power supply 3, the wire 01 is led out from the second focus and then penetrates through the induction heating coil 5, and the induction heating coil 5 is a high-frequency induction coil;
the stainless steel gallium liquid tank 14 is arranged in the box body 1, metal gallium liquid is arranged in the gallium liquid tank 14, the metal gallium liquid is used for rapidly cooling the heated wire rod 01 to 30-50 ℃, a gallium liquid temperature measurer is arranged on the gallium liquid tank 14 and used for measuring the temperature of liquid gallium, and the temperature of the liquid gallium needs to be lower than 60 ℃;
the guide wheel 15 is arranged in the box body 1 and is positioned at the gallium liquid tank 14, the wire 01 is led out by the induction heating coil 5 and then bypasses the guide wheel 15, and the wire 01 is immersed in the gallium liquid by the guide wheel 15;
the driving wheel set 16 is arranged in the box body 1 and comprises a synchronous driving wheel 161 and a second auxiliary wheel 162, the synchronous driving wheel 161 and the second auxiliary wheel 162 are arranged in a circumferential tangent mode, and the wire 01 is led out by the guide wheel 15 and then passes through the space between the synchronous driving wheel 161 and the second auxiliary wheel 162;
the servo motor is connected with the synchronous driving wheel 161 and communicated with the power supply 3 and is used for driving the synchronous driving wheel 161 to rotate;
the brake is arranged in the box body 1, connected with the power supply 3 and used for braking the synchronous driving wheel 161;
a synchronous transmission belt 17 disposed in the box body 1, wherein the synchronous transmission belt 17 is connected to the synchronous driving wheel 161 and the synchronous driven wheel 132, and the synchronous transmission belt 17 is used for enabling the synchronous driving wheel 161 and the synchronous driven wheel 132 to synchronously rotate;
the take-up pulley 18 is arranged in the box body 1, the take-up pulley 18 and the finishing pulley 121 are arranged in a circumferential tangent mode, and the wire 01 is led out by the synchronous driving wheel 161 and then collected, finished and coiled by the take-up pulley 18;
the infrared temperature measuring window is arranged on the box body 1, an infrared temperature measuring instrument is arranged outside the corresponding box body 1, and the infrared temperature measuring instrument is used for detecting the maximum temperature value of the wire rod 01 of the heating section;
the heating circuit is arranged in the box body 1, is communicated with the power supply 3, is used for heating and removing water in the box body 1 before the vacuum pump 2 works, is connected with the gallium liquid tank 14 and is used for heating the gallium liquid, and heating and liquefying the gallium metal to meet the heat treatment requirement of RHQ when the environmental temperature in winter is lower than the melting point of the gallium metal;
the environment thermometer is arranged in the box body 1, and after the box body 1 forms a vacuum cavity, parts such as the motor and the like in the box body have certain requirements on the temperature of a working environment, so that the temperature in the vacuum cavity of the box body 1 needs to be detected;
the video monitoring part is arranged in the box body 1 and used for recording each processing process, the recorded video can be used for finding problems possibly generated in the processing process, and the reason can be analyzed afterwards, so that the whole processing process is continuously perfected;
and a glass panel provided on the box body 1 for observing a state of the inside of the box body 1 during machining outside the box body 1.
Wherein the wire 01 between the pay-off wheel 11 and the electrode wheel set 13 belongs to a superconducting precursor wire, and the wire 01 does not have superconducting performance at the moment; the wire 01 between the electrode wheel set 13 and the guide wheel 15 is rapidly heated to about 2000 ℃ and then rapidly cooled to 30-50 ℃ in the key stage of heat treatment; the wire 01 after the guide wheel 15 has a part of superconducting properties; after the wire is wound up by the take-up pulley 18, the wire 01 needs to be annealed in the later stage.
Application a heat treatment system, the vacuum pump will after the evacuation in the box, the motor rotates and drives synchronous drive wheel rotates, because synchronous drive belt's effect synchronous also rotates from the driving wheel, under the effect of frictional force, wire rod motion and pulling the wire rod motionThe actinobacillus wheel rotates, the rotation of actinobacillus wheel drives the take-up pulley rotates, the take-up pulley will the wire rod is collected, in the wire rod motion process pass through the electrode wheel is fast hot and passes through metal gallium liquid is fast cold, and whole device is drawn by a single motor and is provided power, has avoided the problem of the speed deviation that can produce between a plurality of power supplies, has reduced the possibility of broken string, simultaneously, because the electrode wheel lets in less electric current IRHQThe wire breakage rate can be reduced by reducing the fluctuation of the energy density per unit volume in the longitudinal direction of the wire rod 01, and accordingly the energy density per unit volume of the wire rod 01 can be less than 50J/mm3Thus, the heating device is adopted to assist in heating so that the energy density per unit volume of the wire rod 01 reaches 50J/mm3The system does not bring fluctuation, realizes the RHQ heat treatment of the wire rod in a vacuum environment, and has simple structure, convenient use and good effect.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The heating device comprises a heating device body (4), and is characterized in that the heating device body (4) comprises a plurality of light sources (41), each light source (41) corresponds to a reflecting surface (42) with an oval cross section, each light source (41) is arranged at a first oval focus of the corresponding reflecting surface (42), all oval second focuses of the reflecting surfaces (42) are overlapped, all the reflecting surfaces (42) face to the second focuses, and all the first focuses are in a circle.
2. The heating device according to claim 1, wherein the light source (41) is a linear light source.
3. The heating device according to claim 1, wherein all the reflecting surfaces (42) are symmetrically arranged in the heating device body (4) and enclose a hollow tubular structure.
4. Heating device according to claim 1, characterized in that the light source (41) is a halogen lamp.
5. A heating device according to any one of claims 1-4, characterized in that the light-reflecting surface of each of said reflecting surfaces (42) is coated with a reflecting film.
6. The utility model provides a synthesize heat treatment system for preparing long wire rod superconductor, includes inclosed box (1), be equipped with sealing door on box (1), its characterized in that still includes:
the vacuum pump (2) is arranged outside the box body (1), is communicated with the interior of the box body (1) and is used for forming a vacuum cavity in the box body (1);
the pay-off wheel (11) is arranged in the box body (1) and is used for arranging the wire (01) to be processed;
the electrode wheel set (13) is arranged in the box body (1) and comprises an electrode wheel (131) and a synchronous driven wheel (132), the electrode wheel (131) and the synchronous driven wheel (132) are arranged in a circumferential tangent mode, a wire (01) is led out by the pay-off wheel (11) and then penetrates between the electrode wheel (131) and the synchronous driven wheel (132), and the electrode wheel (131) is used for heating the penetrating wire (01);
the power supply (3) is respectively connected with the vacuum pump (2) and the electrode wheel (131) and is used for carrying out ohmic heating on the wire (01) through the electrode wheel (131);
the heating device according to any one of claims 1 to 5, arranged in the box (1), connected to the power source (3), the wire (01) being drawn by the driven synchronous pulley (132) and passing through the second focus;
the gallium liquid tank (14) is arranged in the box body (1), metal gallium liquid is arranged in the gallium liquid tank (14), and the metal gallium liquid is used for rapidly cooling the heated wire (01);
the guide wheel (15) is arranged in the box body (1) and is positioned at the gallium liquid tank (14), the wire (01) is led out from the second focus and then bypasses the guide wheel (15), and the wire (01) is immersed in the gallium metal liquid by the guide wheel (15);
the driving wheel set (16) is arranged in the box body (1) and comprises a synchronous driving wheel (161) and a second auxiliary wheel (162), the synchronous driving wheel (161) and the second auxiliary wheel (162) are arranged in a circumferential tangent mode, and the wire (01) is led out from the guide wheel (15) and then penetrates between the synchronous driving wheel (161) and the second auxiliary wheel (162);
the motor is connected with the synchronous driving wheel (161) and communicated with the power supply (3) and is used for driving the synchronous driving wheel (161) to rotate;
the synchronous transmission belt (17) is arranged in the box body (1), and the synchronous transmission belt (17) is connected with the synchronous driving wheel (161) and the synchronous driven wheel (132);
the wire winding wheel (18) is arranged in the box body (1), the wire winding wheel (18) and the wire unwinding wheel (11) are arranged in a circumferential tangent mode, and wires (01) are collected, arranged and coiled by the wire winding wheel (18) after being led out by the synchronous driving wheel (161).
7. The heat treatment system according to claim 6, further comprising an arranging wheel set (12), wherein the arranging wheel set (12) is arranged in the box body (1) and comprises an arranging wheel (121) and a first auxiliary wheel (122), the arranging wheel (121) and the first auxiliary wheel (122) are arranged in a circumferential tangent mode, and the wire (01) is led out from the pay-off wheel (11), passes through a position between the arranging wheel (121) and the first auxiliary wheel (122) and is led to the electrode wheel set (13).
8. Heat treatment system according to claim 6, wherein a pressure relief valve is provided on the tank (1).
9. The heat treatment system according to claim 6, wherein a video monitoring part is provided in the box body (1), and the video monitoring part is used for recording each processing process.
10. The heat treatment system according to any one of claims 6 to 9, further comprising an induction heating coil (5) disposed in the box body (1), wherein the induction heating coil (5) is connected to the power source (3), and the wire (01) is led out from the second focus, passes through the induction heating coil (5), and is led to the guide wheel (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920080906.7U CN209930542U (en) | 2019-01-17 | 2019-01-17 | Heating device and comprehensive heat treatment system for preparing long wire superconductor |
Applications Claiming Priority (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109548222A (en) * | 2019-01-17 | 2019-03-29 | 西南石油大学 | A kind of heating device and the synthesis heat treatment system for being used to prepare long wire rod superconductor |
| CN109609750A (en) * | 2019-01-17 | 2019-04-12 | 西南石油大学 | A kind of zero tension synchronous transmission heat treatment system preparing high performance superconductor wire rod |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109548222A (en) * | 2019-01-17 | 2019-03-29 | 西南石油大学 | A kind of heating device and the synthesis heat treatment system for being used to prepare long wire rod superconductor |
| CN109609750A (en) * | 2019-01-17 | 2019-04-12 | 西南石油大学 | A kind of zero tension synchronous transmission heat treatment system preparing high performance superconductor wire rod |
| CN109548222B (en) * | 2019-01-17 | 2024-04-12 | 西南石油大学 | Heating device and comprehensive heat treatment system for preparing long wire material superconductor |
| CN109609750B (en) * | 2019-01-17 | 2024-04-12 | 西南石油大学 | Zero-tension synchronous transmission heat treatment system for preparing high-performance superconducting wire |
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