CN107356114B - Cold crucible for vacuum electron beam melting - Google Patents
Cold crucible for vacuum electron beam melting Download PDFInfo
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- CN107356114B CN107356114B CN201710692643.0A CN201710692643A CN107356114B CN 107356114 B CN107356114 B CN 107356114B CN 201710692643 A CN201710692643 A CN 201710692643A CN 107356114 B CN107356114 B CN 107356114B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/10—Crucibles
- F27B2014/108—Cold crucibles (transparent to electromagnetic radiations)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
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- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The invention discloses a cold crucible for vacuum electron beam melting, which comprises a crucible with a material pool formed in the center of the top and a base fixedly connected with the bottom of the crucible; the water-cooling crucible provided by the invention has the advantages that the water-cooling effect and uniformity of the water-cooling tube crucible can be effectively ensured by adopting the flow channel designs in different modes for different parts, meanwhile, the two flow channel designs are free of welding seams in the crucible body, the potential safety hazard of water leakage is avoided, the reliability of equipment is improved, the processing cost is reduced, a circulating water channel is jointly formed by a water hole and embedded water guide tube mode and the internal and external circulation mode of the sleeve, the processing precision can be ensured, and the cooling area of the water channel can be flexibly adjusted by adjusting the aperture, the water hole position and the width of the water channel, so that the cooling area is increased, and the requirements of different heat loads are met.
Description
Technical Field
The invention relates to a crucible, in particular to a cold crucible for vacuum electron beam melting.
Background
In the vacuum metal smelting purification technology, a water-cooling welding copper crucible is used as a carrier of an evaporation heat source in an evaporation system, copper has very good heat conduction performance, and the self temperature can be well reduced under the water-cooling condition, so that the usability is ensured. The existing cooling water channel generally adopts a waterway structure with lower inlet and upper outlet.
Chinese patent CN 204987858U discloses a water-cooled crucible for electron beam melting furnace, comprising a base, wherein the upper end surface of the base forms a convex ring, the lower ends of an outer water jacket and a jacket are both connected with the top surface of the convex ring, the lower end of an inner water jacket is inserted into the convex ring and connected with the base, the outer water jacket, the jacket and the inner water jacket are sequentially arranged from outside to inside, a gap is formed between the outer wall of the jacket and the inner wall of the outer water jacket, and the jacket is in clearance fit with the inner water jacket; the upper ends of the outer water jacket and the inner water jacket are connected through a flange; the outer circumferential wall of the inner water jacket forms a spiral groove; the lower end of the outer water jacket is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe penetrates through the outer water jacket and the jacket and is communicated with the spiral groove, and the water outlet pipe penetrates through the outer water jacket and is communicated with the gap.
Although the structure overcomes the temperature of local evaporation, the formation of the whole waterway is realized by vacuum brazing, the processing cost is high, the heating load is limited, the potential safety hazard of water leakage exists, and the reliability of an evaporation system is affected.
Disclosure of Invention
The invention aims to provide a cold crucible for vacuum electron beam melting, aiming at the technical defects in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
a cold crucible for vacuum electron beam melting comprises a crucible with a material pool formed in the center of the top and a base fixedly connected with the bottom of the crucible;
the water cooling mechanism at the bottom of the material pool comprises a water tank formed by recessing inwards of a crucible at the bottom of the material pool, wherein the water tank is closed by the base, a flow guide upright post is fixedly arranged in the water tank, and an overflow hole is formed at the upper end or the lower end of the flow guide upright post so that the water tank and the overflow hole are matched to form an up-and-down roundabout water channel;
the material pool peripheral side water cooling mechanism comprises n water holes which are formed at the bottom of the crucible on the material Chi Zhouce and the lower port of which is sealed by the base, wherein n is a natural number not less than 3; n through holes formed in the base; the water tanks are communicated with the water holes or the water guide pipes through the guide parts;
the water tanks are not directly communicated with each other, the communicating parts are not directly communicated with each other, and the water holes, the connecting grooves, the water guide pipes, the water tanks, the guide receiving parts and the communicating parts form an integral unidirectional channel.
The water tank is a section of C-shaped water tank, one water guide pipe is communicated with the water inlet pipe, one end of the water tank is communicated with the water outlet pipe, one water hole is communicated with the other end of the water tank through the connecting and guiding part, and the number of the communicating parts is (n-1)/2 so as to be communicated with the corresponding group of water guide pipes.
The water tank is a section of C-shaped water tank, two ends of the water tank are respectively communicated with a group of water holes through the guide receiving parts, the two sections of guide receiving parts and the water tank form a connecting groove of the group of water holes, the number of the communicating parts is n/2-1 so as to communicate with corresponding groups of water guide pipes, and the remaining two water guide pipes are respectively communicated with the water inlet pipe and the water outlet pipe.
The groove is two sections of straight-line water grooves, n is an even number, the number of the communicating parts is n/2-1 so as to communicate the corresponding groups of water guide pipes, the remaining two water guide pipes are respectively connected to one end of the straight-line water grooves through the connecting and guiding parts, and the other end of the straight-line water grooves is respectively provided with a water inlet pipe and a water outlet pipe correspondingly.
The water holes are arranged in parallel along the axial direction of the crucible, the water tanks are arranged at equal width and equal depth, the depth directions of the water holes are parallel to the axial direction of the crucible, and the wall thickness of the water holes and the water tanks is 5-10mm.
The water flow sectional area in the water guide pipe, the water flow sectional area between the water guide pipe and the water hole are the same, and the water flow sectional area of the connecting groove corresponds to the water flow sectional area of the overflow hole.
The temperature measuring device is characterized by further comprising a temperature measuring mechanism, wherein an axially extending measuring hole is formed in the bottom of the material pool and/or the periphery of the material pool of the crucible, a through hole is correspondingly formed in the base, and the temperature measuring mechanism penetrates through the through hole in a matched mode and is inserted into the measuring hole.
The base is fixedly connected with the base in a sealing way, a communication groove is formed in the bottom surface of the base, and the base seals the lower port of the communication groove to form the communication part.
The connecting groove is formed on the lower surface of the crucible or the upper surface of the base, and the notch of the connecting groove is closed by the base or the crucible to form a water flow channel.
The overflow hole is formed by a through hole at the end part of the flow guide upright post, or the overflow hole is formed by a gap between the end surface of the flow guide upright post and the top surface of the water tank or the upper surface of the base.
Arc-shaped concave pits are formed on two sides of the water tank to position the guide upright posts, and the guide upright posts are arranged in the water tank in a transition fit or interference fit manner.
The communicating part is a communicating pipe, and the communicating pipe is integrally formed with the two corresponding conducting water guide pipes.
Compared with the prior art, the invention has the beneficial effects that:
the water-cooling crucible provided by the invention has the advantages that the water-cooling effect and uniformity of the water-cooling tube crucible can be effectively ensured by adopting the flow channel designs in different modes for different parts, meanwhile, the two flow channel designs are free of welding seams in the crucible body, the potential safety hazard of water leakage is avoided, the reliability of equipment is improved, the processing cost is reduced, a circulating water channel is jointly formed by a water hole and embedded water guide tube mode and the internal and external circulation mode of the sleeve, the processing precision can be ensured, and the cooling area of the water channel can be flexibly adjusted by adjusting the aperture, the water hole position and the width of the water channel, so that the cooling area is increased, and the requirements of different heat loads are met.
Drawings
FIG. 1 is a schematic view showing an explosive state structure of a cold crucible for vacuum electron beam melting according to the present invention;
FIG. 2 is a schematic view of another view structure shown in FIG. 1;
FIG. 3 shows a side view of the bottom of the crucible;
FIG. 4 is a schematic view showing another view angle structure of the crucible;
FIG. 4 is a schematic view of a base;
FIG. 5 is a schematic view showing a structure in which a susceptor is mounted on the bottom of a crucible;
FIG. 6 is a schematic view showing a group state structure of a water-cooled crucible.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in the figure, the invention discloses a cold crucible for vacuum electron beam melting, which comprises a crucible 1, wherein a material pool 11 is formed in the center of the top of the crucible, and a base 2 fixedly connected with the bottom of the crucible; wherein, the crucible is a heat good conductor, such as copper, the seat plate 2 is made of stainless steel, and the good processing property of stainless steel and the heat conductivity of copper are fully combined. Wherein, in order to realize the sealing connection of the crucible and the seat plate, the contact surface of the crucible and the seat plate is preferably a plane, and a sealing plate, such as a rubber plate, is arranged between the crucible and the seat plate for sealing.
The water cooling mechanism at the bottom of the material pool comprises a water tank 12 formed by recessing inwards of a crucible at the bottom of the material pool, wherein the lower opening of the water tank is closed by the base, a flow guide upright post 13 is fixedly arranged in the water tank, and an overflow hole is formed at the upper end or the lower end of the flow guide upright post so that the water tank and the overflow hole are matched to form an up-and-down roundabout water channel; the flow-through hole is a through hole at the end part of the flow-guiding upright post, or is formed by a gap between the flow-guiding upright post and the top surface of the water tank or the upper surface of the seat plate, namely, the length of the flow-guiding upright post is smaller than the depth of the water tank, and the flow-through hole is formed by being inserted into the bottom or the bottom end of the flow-guiding upright post is flush with the bottom of the crucible, wherein the flow-guiding upright post is preferably cylindrical or square, and of course, other cross-section shapes can be adopted as long as blocking of liquid can be realized. The bottom of the crucible is provided with a water tank, the lower end face of the water tank is sealed by a seat plate to form a cavity type water channel, meanwhile, a flow guide upright post is arranged in the water channel, the water channel is blocked by the flow guide upright post, only an overflow hole is reserved, the overflow holes of two adjacent flow guide upright posts are arranged in an up-down staggered mode, namely, an up-down roundabout type one-way water channel is formed in the crucible, and the cooling effect is realized through the flow of water flow in the one-way water channel.
The material pool peripheral side water cooling mechanism comprises n water holes 14 which are formed at the bottom of the crucible on the material Chi Zhouce and the lower port of which is sealed by the base, wherein n is a natural number not less than 3; n through holes formed in the base 2; the water channels 21 are fixedly arranged in one-to-one correspondence with the through holes and can be matched and inserted into the water holes and keep a space with the water holes, and the communicating parts 22 are formed on the bottom surface of the base, the water holes are in one group by one group and are communicated by the connecting grooves, the communicating parts are used for communicating the corresponding water channels between the two groups of water holes, and the water tank 11 and the water holes 14 are communicated by the connecting parts 23; the connecting groove 15 is formed on the bottom surface of the crucible or the upper surface of the seat plate, and only the sealing connection between the crucible and the seat plate is required.
The water tanks are not directly communicated with each other, the communicating parts are not directly communicated with each other, and the water holes, the connecting grooves, the water guide pipes, the water tanks, the guide receiving parts 23 and the communicating parts 22 form an integral unidirectional channel.
The water-cooling crucible provided by the invention has the advantages that the water-cooling effect and uniformity of the water-cooling tube crucible can be effectively ensured by adopting the flow channel designs in different modes for different parts, meanwhile, the two flow channel designs are free of welding seams in the crucible body, the potential safety hazard of water leakage is avoided, the reliability of equipment is improved, the processing cost is reduced, a circulating water channel is jointly formed by a water hole and embedded water guide tube mode and the internal and external circulation mode of the sleeve, the processing precision can be ensured, and the cooling area of the water channel can be flexibly adjusted by adjusting the aperture, the water hole position and the width of the water channel, so that the cooling area is increased, and the requirements of different heat loads are met.
In particular implementation, in order to realize the integral design of a flow path, as shown in the figure, in the first embodiment of the invention, the water tank is two sections of linear water tanks, n is an even number, the number of the communicating parts is n/2-1 so as to communicate the corresponding groups of water guide pipes, the remaining two water guide pipes are respectively connected to one end of the linear water tank through the connecting parts, and the other end of the linear water tank is respectively provided with a water inlet pipe and a water outlet pipe correspondingly. The connecting and guiding part is preferably a connecting and guiding pipe which can be integrally formed with the corresponding water guide pipe.
Specifically, n is 12, namely, 12 water holes are formed in the crucible body, the 12 water holes are divided into six groups, 5 communicating parts are provided, the 5 communicating parts connect the water guide pipes of the 5 groups of water holes in series to form a serial flow path, meanwhile, the remaining two water guide pipes are respectively connected to the linear water tank through the guide receiving parts, such as the guide receiving pipes, so as to serve as water inlet and water outlet of the water cooling mechanism on the periphery of the material pool, meanwhile, the other end of the linear water tank is respectively connected with the water inlet pipe and the water outlet pipe, specifically, the other end of the linear water tank is connected with the water inlet pipe or the water delivery pipe through a through hole in the base, the whole waterway flow direction enters through one water tank at the bottom, goes forward in the water tank in a roundabout way mode, enters the guide pipe through the guide receiving parts, then flows back and forth among the water guide pipes, the water holes and the water guide pipes in turn until flowing back to the other linear water tank through the guide receiving parts, and finally is discharged. Namely, the waterway of the water cooling mechanism at the periphery of the material pool is connected in series between two linear water tanks.
The water holes and the water tanks are arranged in parallel along the axial direction of the crucible and densely distributed in the crucible, and the wall thickness of the water holes and the water tanks and the wall thickness of the material pool are 5-10mm. Because the crucible is preferably copper, the crucible has good heat-conducting property, the cooling effect depends on the heat exchange area and the water flow, the densely distributed water holes, namely the water tank, can form a larger heat exchange area, the distance between the water holes and the material tank, namely the wall thickness, is smaller, the heat can be rapidly led out, and the design of the water holes uniformly distributed at multiple points can effectively meet the design requirement, so that the cooling performance is ensured.
Further, in order to ensure the smoothness of the water flow channel, the water flow sectional area in the water guide pipe, the water flow sectional area between the water guide pipe and the water hole are the same, and the water flow sectional area of the connecting groove corresponds to the water flow sectional area of the overflow hole. For example, the inner diameter of the water guide pipe is 10-16mm, and the distance between the outer wall of the water guide pipe and the water hole is 3-5mm. The matched size configuration is adopted, so that the complete and smooth water flow channel is ensured, dead zones can be effectively avoided, and local evaporation is avoided.
In order to improve the practicality of equipment, still include temperature measuring mechanism, be provided with the measuring hole of axial extension in the material pond bottom of crucible and/or material pond week side, correspond and set up the perforation on the base, temperature measuring mechanism pass the perforation with matching and insert the measuring hole. The inner open hole type installation positioning temperature measuring mechanism is adopted, such as a temperature thermocouple, is simple to install, can realize multipoint simultaneous temperature measurement, and meanwhile, the crucible body is ensured to be free of welding seams, so that the use safety is improved.
As one specific embodiment, the communicating portion 22 is a communicating tube, and the communicating tube is integrally formed with the two corresponding conductive water guide tubes. That is, the U-shaped structure is adopted, the communicating pipe and the water guide pipe can be provided with different diameters to achieve the installation and positioning effects, the two water guide pipes are directly integrally manufactured, the connecting welding seam is reduced, the integral water guide pipe can be directly provided with interference fit and other modes, welding is integrally reduced, and the use safety is further improved. Meanwhile, in order to avoid the exposure of the communicating pipe, a positioning groove which embeds the communicating pipe therein is formed on the lower surface of the base. Namely, the U-shaped structure is adopted, the two water guide pipes are directly and integrally manufactured, the connecting welding seam is reduced, the use safety is further improved, and the water leakage risk caused by electron beam breakdown is avoided.
As another embodiment, the water flow device further comprises a base 3 fixedly connected with the base in a sealing manner through a plurality of screws, the communicating part 22 is a communicating groove formed on the bottom surface of the base, and the base seals the lower opening of the communicating groove to limit the communicating groove to a water flow channel. The base and the base are made of stainless steel, the sealing plate is arranged between the crucible and the base, the sealing plate such as a rubber plate group is arranged between the base and the base, the sealing performance of each part is effectively guaranteed by adopting multi-point screw installation, the easy processing performance of the stainless steel is fully utilized, the processing precision is guaranteed, and the processing difficulty and cost are reduced. The whole structure is simple, all parts of the flow channel are connected smoothly, and the use effect is good. Meanwhile, the same groove type design can be adopted for the connecting and guiding part. The base is provided with openings corresponding to the remaining two water guide pipes, and corresponding water inlet pipes and water outlet pipes are arranged at the openings and fixedly connected and communicated through flanges.
Meanwhile, in order to reduce the water leakage risk caused by electron beam breakdown, no water tank is arranged in the area corresponding to the electron bombardment area, namely, the water tank is not arranged between the two linear water tanks, so that the welding point is reduced, and the overall use safety is improved.
Further, the guide upright post is arranged in the water tank in a transition fit or interference fit manner, the blocking effect on water flow is guaranteed by the interference fit or the transition fit, the positioning of the guide upright post in the water tank is realized, and arc-shaped concave pits are formed on two sides of the water tank to position the guide upright post. That is, after the water tank is processed, the assembly holes of the guide upright posts are further drilled in the water tank, and the assembly holes and the guide upright posts form interference fit or transition fit, so that the overflow between water channels is reduced. And for the condition that the length of the diversion upright post is smaller than the depth of the water tank, the gap of the overflow hole can be controlled through the upright post assembly holes with different depths.
Second embodiment
In order to realize the design of the whole flow path, n is an odd number, the water tank is a section of C-shaped water tank, one water guide pipe is communicated with the water inlet pipe, one end of the water tank is communicated with the water outlet pipe, one water hole is communicated with the other end of the water tank through the connecting and guiding part, and the number of the communicating parts is (n-1)/2 so as to be communicated with the water guide pipes of the corresponding group. The layout of the C-shaped water tank ensures that the bottom of the material tank is also provided with more uniformly distributed cooling points, thereby realizing bottom temperature control. The flow path of the water cooling mechanism at the bottom of the material pool is connected in series with the flow path of the water cooling mechanism at the periphery of the material pool, and different structural parameter designs are adopted for different parts, so that the temperature can be controlled as well. The remaining structure is similar to that of the first embodiment, and will not be described here.
Third embodiment
The water tank is a section of C-shaped water tank, two ends of the water tank are respectively communicated with a group of water holes through the guide receiving parts, the two sections of guide receiving parts and the water tank form a connecting groove of the group of water holes, the number of the communicating parts is n/2-1 so as to communicate with corresponding groups of water guide pipes, and the remaining two water guide pipes are respectively communicated with the water inlet pipe and the water outlet pipe. This embodiment differs from the second embodiment in that the flow path of the water cooling mechanism at the bottom of the material pool is connected in series to the middle of the flow path of the water cooling mechanism at the peripheral side of the material pool, and the remaining structure is similar to that of the first embodiment and will not be described here.
Of course, as a further modification of the present embodiment, two ends or one end of the water tank may be directly connected to the corresponding water guide pipe by the connection portion, for example, the connection tube may correspondingly adjust the number of the connection portions, which is not described herein.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (13)
1. The cold crucible for vacuum electron beam melting is characterized by comprising a crucible with a material pool formed in the center of the top and a base fixedly connected with the bottom of the crucible;
the water cooling mechanism at the bottom of the material pool comprises a water tank formed by recessing inwards of a crucible at the bottom of the material pool, wherein the water tank is closed by the base, a flow guide upright post is fixedly arranged in the water tank, and an overflow hole is formed at the upper end or the lower end of the flow guide upright post so that the water tank and the overflow hole are matched to form an up-and-down roundabout water channel;
the material pool peripheral side water cooling mechanism comprises n water holes which are formed at the bottom of the crucible on the material Chi Zhouce and the lower port of which is sealed by the base, wherein n is a natural number not less than 3; n through holes formed in the base; the water tanks are communicated with the water holes or the water guide pipes through the guide parts;
the water tanks are not directly communicated with each other, the communicating parts are not directly communicated with each other, and the water holes, the connecting grooves, the water guide pipes, the water tanks, the guide receiving parts and the communicating parts form an integral unidirectional channel.
2. The cold crucible for vacuum electron beam melting according to claim 1, wherein n is an odd number, the water tank is a section of C-shaped water tank, one water guide pipe is communicated with the water inlet pipe, one end of the water tank is communicated with the water outlet pipe, one water hole is communicated with the other end of the water tank by the guide receiving part, and the number of the communicating parts is (n-1)/2 so as to be communicated with the corresponding group of water guide pipes.
3. The cold crucible for vacuum electron beam melting according to claim 1, wherein n is an even number, the water tank is a section of C-shaped water tank, two ends of the water tank are respectively communicated with a group of water holes through the connection parts, the two sections of connection parts and the water tank form a connection groove of the group of water holes, the number of the connection parts is n/2-1 to connect the corresponding group of water guide pipes, and the remaining two water guide pipes are respectively communicated with the water inlet pipe and the water outlet pipe.
4. The cold crucible for vacuum electron beam melting according to claim 1, wherein the water tank is two sections of straight water tanks, n is an even number, the number of the communicating parts is n/2-1 so as to communicate the corresponding group of water guide pipes, the remaining two water guide pipes are respectively connected to one end of the straight water tank through the guide parts, and the other end of the straight water tank is respectively provided with a water inlet pipe and a water outlet pipe correspondingly.
5. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the water holes are arranged in parallel in the axial direction of the crucible, the water grooves are arranged in equal width and equal depth and are parallel to the axial direction of the crucible in the depth direction, and the wall thickness of the water holes and the water grooves is 5 to 10mm.
6. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the water flow sectional area in the water guide pipe, the water flow sectional area between the water guide pipe and the water hole are the same, and the water flow sectional area of the connecting groove corresponds to the water flow sectional area of the overflow hole.
7. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, further comprising a temperature measuring mechanism, wherein an axially extending measuring hole is provided at the bottom of the material pool and/or the peripheral side of the material pool of the crucible, and a through hole is provided correspondingly in the base, and the temperature measuring mechanism is inserted into the measuring hole through the through hole in a matched manner.
8. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, further comprising a base fixedly connected to the base in a sealing manner, a communicating groove being formed in a bottom surface of the base, and the base closing a lower port of the communicating groove to constitute the communicating portion.
9. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the connecting groove is formed on a lower surface of the crucible or an upper surface of the base and a notch of the connecting groove is closed by the base or the crucible to constitute a water flow passage.
10. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the overflow hole is formed by a through hole at an end of the guide pillar.
11. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the overflow hole is formed by a gap between the end surface of the guide pillar and the top surface of the water tank or the upper surface of the base.
12. A cold crucible for vacuum electron beam melting as defined in any one of claims 1 to 4, wherein arcuate recesses are formed on both sides of said water bath for positioning said guide posts, said guide posts being disposed in said water bath in a transition fit or interference fit.
13. The cold crucible for vacuum electron beam melting according to any one of claims 1 to 4, wherein the communicating portion is a communicating tube integrally formed with the two corresponding conductive water guide tubes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710692643.0A CN107356114B (en) | 2017-08-14 | 2017-08-14 | Cold crucible for vacuum electron beam melting |
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| CN201710692643.0A CN107356114B (en) | 2017-08-14 | 2017-08-14 | Cold crucible for vacuum electron beam melting |
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| CN107356114A CN107356114A (en) | 2017-11-17 |
| CN107356114B true CN107356114B (en) | 2023-08-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109780859A (en) * | 2018-12-27 | 2019-05-21 | 四川普莱斯德绝热材料有限公司 | A kind of molten matter furnace with water cooling, air cooling system |
| CN113461306B (en) * | 2021-06-21 | 2022-08-09 | 中国原子能科学研究院 | Container and material processing equipment |
| CN113461310A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Cooling mechanism and temperature measuring device |
| CN113461307B (en) * | 2021-06-21 | 2022-08-09 | 中国原子能科学研究院 | Container and material processing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05280871A (en) * | 1992-03-31 | 1993-10-29 | Kobe Steel Ltd | Water-cooled divided copper crucible for induction melting service |
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| CN106197019A (en) * | 2016-08-31 | 2016-12-07 | 沈阳真空技术研究所 | the cold crucible of metal induction melting |
| CN207456162U (en) * | 2017-08-14 | 2018-06-05 | 核工业理化工程研究院 | Vacuum electron beam smelting cold crucible |
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| JPH05280871A (en) * | 1992-03-31 | 1993-10-29 | Kobe Steel Ltd | Water-cooled divided copper crucible for induction melting service |
| CN201255574Y (en) * | 2008-07-18 | 2009-06-10 | 北京航空航天大学 | Electronic beam smelting device |
| CN201397039Y (en) * | 2009-01-14 | 2010-02-03 | 贵州贵航能发装备制造有限公司 | Cold crucible with weld cooling pipeline for vacuum induction melting |
| CN101603776A (en) * | 2009-05-08 | 2009-12-16 | 北京航空航天大学 | A kind of induction melting cold crucible |
| CN103628130A (en) * | 2013-12-13 | 2014-03-12 | 东莞市精研粉体科技有限公司 | Cold crucible smelting device capable of realizing continuous crystal pulling |
| CN105091584A (en) * | 2015-09-21 | 2015-11-25 | 核工业理化工程研究院 | Water cooling crucible for electron-beam melting furnace |
| CN106197019A (en) * | 2016-08-31 | 2016-12-07 | 沈阳真空技术研究所 | the cold crucible of metal induction melting |
| CN207456162U (en) * | 2017-08-14 | 2018-06-05 | 核工业理化工程研究院 | Vacuum electron beam smelting cold crucible |
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|---|---|
| CN107356114A (en) | 2017-11-17 |
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