CN218503260U - Heating furnace for hot-pressing compounding of metal blanks with ultra-large specifications - Google Patents
Heating furnace for hot-pressing compounding of metal blanks with ultra-large specifications Download PDFInfo
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- CN218503260U CN218503260U CN202223005563.9U CN202223005563U CN218503260U CN 218503260 U CN218503260 U CN 218503260U CN 202223005563 U CN202223005563 U CN 202223005563U CN 218503260 U CN218503260 U CN 218503260U
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Abstract
The utility model discloses a be used for super large specification metal blank hot pressing complex heating furnace relates to metal processing technology field. Comprises a pressure-bearing base, a furnace shell, a cooling water circulation system and a temperature control device, wherein the furnace shell, the cooling water circulation system and the temperature control device are arranged in sections; the furnace shells are arranged at the top end of the pressure-bearing base, and the cooling water circulating system is arranged on one side of the pressure-bearing base and communicated with the pressure-bearing base; the metal blanks are placed above the pressure-bearing base in a stacked manner; a plurality of electric heating wires which are longitudinally distributed are uniformly arranged in the furnace shell, and the electric heating wires are electrically connected with a temperature control device and used for adjusting the heating temperature of the metal blank. The utility model can heat metal blanks with different heights by adjusting the number of the furnace shells, and heat the blanks in a stepped heating and heat preservation mode according to different types of metal materials; the pressurizing circular truncated cone is slowly pressurized by a large-scale press, and the metal blanks are pressurized to carry out hot-pressing diffusion compounding, so that the blanks are combined, and the components of the metal material containing the elements easy to segregate are more uniform.
Description
Technical Field
The utility model relates to a metal processing technology field specifically is a heating furnace that is used for super large specification metal blank hot pressing to compound.
Background
The fields of ocean, nuclear power, chemical industry and the like put forward urgent demands on super-large specification processing materials, and because the forge welding quality is poor, the super-large specification processing materials can reduce welding seams during manufacturing of large-scale equipment, and then the performance and the service life of the equipment are effectively improved. The traditional preparation method of the 'big and small' material needs to firstly prepare an ingot with a specification larger than that of a processed material, but when an alloy containing elements easy to segregate is smelted, the larger the ingot type is, the more serious the component segregation is, and meanwhile, due to the limitation of the smelting tonnage, the obtainment of the oversized ingots of titanium, steel, nickel and the like is also limited. The idea of 'from small to large' of obtaining an oversized processed material by utilizing a relatively small-sized metal blank to carry out hot-pressing compounding is an important route for preparing the oversized metal blank at present, and key equipment in the route is a matched heating device.
The hot-pressing composite preparation method is characterized in that a metal blank is heated to a certain temperature and then is subjected to heat preservation for a period of time, then thermal diffusion composite is realized under the pressure of a large-sized press, and the metal blank is continuously heated in a furnace to keep the temperature constant in the pressing process, so that dozens of tons or even hundreds of tons of super-large-size metal blanks can be prepared. At present, aiming at metal blanks with ultra-large specifications, the existing heating furnace is difficult to meet the requirements in production, cannot be combined with a large-sized press for use, and particularly cannot be flexibly heated when the height of the metal blanks is changed, so that uneven heating and resource waste are easily caused. For example, the conventional hot isostatic pressing equipment is expensive, the furnace chamber is limited, and the hot isostatic pressing equipment cannot be transported to a large-scale press for pressing, so that the production process is more complicated.
How to provide a heating furnace for hot-pressing and compounding ultra-large specification metal blanks becomes a technical problem which needs to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses main aim at provides a be used for super large specification metal blank hot pressing complex heating furnace to solve above-mentioned problem.
In order to achieve the above object, the utility model provides a heating furnace for super large specification metal blank hot pressing is compound, include: the furnace comprises a pressure-bearing base, a furnace shell arranged in sections, a cooling water circulation system and a temperature control device;
the furnace shells are arranged at the top end of the pressure-bearing base, and the cooling water circulation system is arranged on one side of the pressure-bearing base and communicated with the pressure-bearing base; the metal blanks are placed above the pressure-bearing base in a stacking manner;
and a plurality of longitudinally distributed heating wires are uniformly arranged in the furnace shell, and the heating wires are electrically connected with the temperature control device and used for adjusting the heating temperature of the metal blank.
Furthermore, the furnace further comprises a furnace cover, and during heating, the furnace cover is arranged at the top end of the furnace shell.
Furthermore, the device also comprises a pressurizing circular table, and when the pressurizing circular table is used for pressurizing, the pressurizing circular table covers the top end of the metal blank.
Furthermore, the temperature control device comprises a wiring bin, a temperature sensor and an electric control cabinet, wherein the wiring bin is arranged on one side outside the furnace shell, a movable plug capable of sliding up and down is arranged at the bottom of the wiring bin, and three jacks matched with the movable plug are arranged at the top of the wiring bin; a bottom jack matched with the movable plug is arranged above the pressure-bearing base, and the bottom jack is connected with the electric control cabinet through a power line; the pressure-bearing base is provided with a placing table at the central position, the temperature sensor is installed on the inner side of the upper part of the placing table, and the temperature sensor is electrically connected with the electric control cabinet.
Furthermore, the front of the electric control cabinet is respectively provided with an ammeter, a voltmeter, a temperature setter and a button of the three-phase power supply.
Furthermore, the top of the furnace shell is provided with a convex ring, and the bottom of the furnace shell is provided with a groove matched with the convex ring.
Furthermore, heat insulation materials are filled on the pressure-bearing base, in the furnace shell and in the furnace cover.
Furthermore, the cooling water circulation system comprises a cooling water tank, a water inlet pipe, a water outlet pipe and an air cooler, wherein one end of the water inlet pipe is connected with the cooling water tank, the other end of the water inlet pipe is connected with a water inlet of the pressure-bearing base, and a water pump is arranged on the water inlet pipe; one end of the water outlet pipe is connected with a water outlet of the pressure-bearing base, and the other end of the water outlet pipe is connected with the cooling water tank; and an air cooler is installed on the cooling water tank, and a water changing port is arranged on the cooling water tank.
Furthermore, the furnace shell is externally provided with longitudinal and transverse reinforcing ribs, so that the strength in the hoisting process is ensured.
Furthermore, lifting lugs are connected above the pressure-bearing base, around the furnace shell and above the furnace cover.
The beneficial effects of the utility model reside in that:
the utility model has simple structure and convenient assembly, can heat metal blanks with different heights by adjusting the number of the furnace shells, and adopts a stepped heating and heat preservation mode to heat the blanks according to different types of metal materials; the pressurizing circular truncated cone is slowly pressurized by a large-scale press, and the metal blank is pressurized to carry out hot-pressing diffusion compounding, so that the metal material containing the easily segregated elements is more uniform in composition while the combination of the blanks is realized, the defects of local small holes, looseness and the like can be eliminated, and dozens to hundreds of tons of ultra-large-sized homogeneous and heterogeneous metal blanks can be constructed. In addition, the heating furnace also has the advantages of convenient lifting, simple structure, low cost and the like, and blanks with any height can be heated by combining a plurality of same furnace shells.
Drawings
FIG. 1 is a schematic view of the assembly of a heating furnace for hot pressing and compounding ultra-large metal blanks according to the present invention;
FIG. 2 is a front sectional view of a heating furnace for hot pressing and compounding ultra-large metal blanks in combination with a large die forging press according to the present invention;
fig. 3 is a schematic structural view of a heating furnace pressure-bearing base for hot-pressing compounding of ultra-large specification metal blanks according to the present invention;
FIG. 4 is a schematic structural view of a furnace shell of a heating furnace for hot pressing and compounding ultra-large metal blanks according to the present invention;
FIG. 5 is a schematic structural view of an electric control cabinet of a heating furnace for hot-pressing and compounding ultra-large metal blanks;
fig. 6 is a schematic structural diagram of a cooling water circulation system for hot pressing and compositing of ultra-large specification metal blanks.
Wherein, in the figure: 1-a pressure-bearing base, 101-a placing table, 102-a temperature sensor, 103-a bottom jack, 104-a power line, 105-a water inlet, 106-a water outlet and 107-a cooling cavity; 2-furnace shell, 201-electric heating wire, 202-convex ring, 203-groove, 204-wiring bin, 205-movable plug and 206-three jacks; 3-furnace cover; 4-an electric control cabinet, 401-an ammeter, 402-a voltmeter, 403-a temperature setter and 404-a button; 5-a cooling water circulation system, 501-a water outlet pipe, 502-a cooling water tank, 503-an air cooler, 504-a water changing port, 505-a water inlet pipe and 506-a water pump; 6-lifting lugs; 7-a metal blank; 8-a pressurizing circular table; 9-pressing upper anvil.
Detailed Description
To achieve the above objects and advantages, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-6, the utility model provides a heating furnace for super large specification metal blank hot pressing is compound, include: the furnace comprises a pressure-bearing base 1, a furnace shell 2 arranged in sections, a cooling water circulation system 5 and a temperature control device; the furnace shells 2 are arranged at the top end of the pressure-bearing base 1, and the cooling water circulation system 5 is arranged at one side of the pressure-bearing base 1 and communicated with the pressure-bearing base 1; the metal blanks 7 are placed above the pressure-bearing base 1 in a stacked manner; a plurality of heating wires 201 are uniformly arranged in the furnace shell 2, and the heating wires 201 are electrically connected with the temperature control device and used for adjusting the heating temperature of the metal blank 7.
The utility model discloses still include bell 3, during the heating, bell 3 install in 2 tops of stove outer covering keep warm.
The utility model discloses still include pressurization round platform 8, during the application of pressure, pressurization round platform 8 covers the metal blank top. A plurality of heating wires 201 are uniformly and longitudinally arranged on the inner side of the furnace shell 2, two adjacent heating wires 201 are connected in series, and the heating wire 201 and the junction box are not arranged on the furnace shell 2 on the uppermost layer, so that the furnace shell is convenient to be combined with the pressurizing circular table 8.
The temperature control device comprises a wiring bin 204, a temperature sensor 102 and an electric control cabinet 4, wherein the wiring bin 204 is installed at one side outside the furnace shell 2, a movable plug 205 capable of sliding up and down is installed at the bottom of the wiring bin 204, and three jacks 206 matched with the movable plug 205 are arranged at the top of the wiring bin; a bottom jack 103 matched with the movable plug 205 is arranged above the pressure-bearing base 1, the bottom jack 103 is connected with the electric control cabinet 4 through a power line 104, and the adjacent furnace shells 2 can be connected and electrified through the movable plug 205 and three jacks 206; a placing table 101 is arranged at the central position on the pressure-bearing base 1, the temperature sensor 102 is installed on the inner side of the upper part of the placing table 101, and the temperature sensor 102 is electrically connected with the electric control cabinet 4.
In this embodiment, the front surface of the electric control cabinet 4 is respectively provided with an ammeter 401, a voltmeter 402, a temperature setter 403 and a button 404 of a three-phase power supply.
In this embodiment, a convex ring 202 is disposed on the top of the furnace shell 2, and a groove 203 is disposed on the bottom of the furnace shell and is matched with the convex ring 202. The groove 203 below the furnace shell 2 is combined with the placing table 101, the groove 203 between the adjacent furnace shells 2 is combined with the convex ring 202 to realize sealing connection, and the movable plug 205 is inserted into the jack to realize the electrification of the furnace shell 2.
In this embodiment, the pressure-bearing base 1, the furnace shell 2 and the furnace cover 3 are filled with heat-insulating materials, and the heat-insulating materials are made of high-temperature-resistant inorganic refractory materials, preferably aluminum silicate module heat-insulating materials, so that the purpose of energy conservation and heat insulation is achieved. The pressure-bearing base 1, the furnace shell 2 and the furnace cover 3 are separately designed, the furnace shell 2 is installed by section combination according to the height of a metal blank 7, and all the furnace shells 2 have the same specification; on one hand, the furnace shell is low in cost, simple in matching and convenient to hoist, on the other hand, the heating requirements of metal blanks 7 with different height specifications are met by adjusting the number of the furnace shells 2, and the blanks with any height can be theoretically heated and forged. The pressure-bearing base 1 can be designed to be round or square, and the corresponding placing platform 101, furnace shell 2 and furnace cover 3 can be designed to be round or square, so as to finally form a round or square heating device, preferably a round design. The pressure-bearing base 1 and the pressurizing circular truncated cone 8 are made of heat-resistant alloy steel.
The cooling water circulation system 5 comprises a cooling water tank 502, a water inlet pipe 505, a water outlet pipe 501 and an air cooler 503, wherein one end of the water inlet pipe 505 is connected with the cooling water tank 502, the other end of the water inlet pipe 505 is connected with a water inlet of the pressure-bearing base, and a water pump 506 is arranged on the water inlet pipe 505; one end of the water outlet pipe 501 is connected with a water outlet of the pressure-bearing base, the other end of the water outlet pipe is connected with the cooling water tank 502, a cooling cavity 107 is arranged in the pressure-bearing base, and the cooling cavity 107 is communicated with the water outlet and the water inlet; an air cooler 503 is installed on the cooling water tank 502, and a water change opening 504 is provided on the cooling water tank 502. The cooling water circulation system 5 cools the pressure-bearing base through water cooling, and prevents high temperature from damaging an electrical system and influencing external operation.
In this embodiment, the furnace shell 2 is externally provided with longitudinal and transverse reinforcing ribs to ensure the strength in the lifting process.
In the embodiment, the lifting lugs 6 are connected above the pressure-bearing base 1, around the furnace shell 2 and above the furnace cover 3, so that the lifting is convenient.
Placing stacked metal blanks 7 on the upper portion of the placing table 101, lifting the furnace shell 2 through a lifting lug 6 by using a crane and installing the furnace shell on the pressure-bearing base 1, wherein the groove 203 is combined with the placing table 101 to realize sealing connection, the movable plug 205 is inserted into the bottom jack 103 to realize electrification of the furnace shell 2, the number of the furnace shells 2 to be installed is determined according to the height of the metal blanks 7 until the height of the blanks is just covered, then the furnace cover 3 is covered, and the button 404 is pressed to start a power supply to start heating. Setting temperature and time on an electric control cabinet 4, heating the blank by adopting a step temperature rise and heat preservation mode, wherein the final heat preservation temperature of the titanium alloy is 950-1150 ℃, the final heat preservation temperature of the nickel and nickel alloy, the carbon steel and the alloy steel is 1000-1250 ℃, keeping the temperature and pressure for 2-24 h, then hanging a furnace cover 3 away, putting a pressurizing circular table 8, applying very slow pressure to the blank from the upper part by adopting a large-scale press machine to realize heat diffusion compounding of stacked metal blanks 7, finally removing an upper anvil 9 and the pressurizing circular table 8 of the press machine, hanging each layer of furnace shell 2 away in sequence, and taking out the processed blank.
The utility model has simple structure and convenient assembly, can heat metal blanks with different heights by adjusting the number of the furnace shells, and adopts a stepped heating and heat preservation mode to heat the blanks according to different types of metal materials; the final heat preservation temperature of the titanium alloy is 950-1150 ℃, the final heat preservation temperature of the nickel, the nickel alloy, the carbon steel and the alloy steel is 1000-1250 ℃, the furnace cover is lifted after 2-24 h of heat preservation and pressure maintaining, the upper part of the furnace cover is arranged in a pressurizing circular table, the pressurizing circular table is slowly pressed by a large-scale press, and the metal blank is pressed to carry out hot pressing diffusion compounding, so that the combination among the blanks is realized, simultaneously, the composition of the metal material containing the segregation-prone elements is more uniform, the defects of local small holes, looseness and the like can be eliminated, and dozens to hundreds of tons of super-large homogeneous and heterogeneous high-quality metal blanks can be constructed. In addition, the heating furnace also has the advantages of convenient lifting, simple structure, low cost, wide application space and the like, and blanks with any height can be heated by combining a plurality of same furnace shells.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a heating furnace for super large specification metal blank hot pressing is compound which characterized in that includes: the furnace comprises a pressure-bearing base, a furnace shell arranged in sections, a cooling water circulation system and a temperature control device;
the furnace shells are arranged at the top end of the pressure-bearing base, and the cooling water circulating system is arranged on one side of the pressure-bearing base and communicated with the pressure-bearing base; the metal blanks are placed above the pressure-bearing base in a stacked manner;
and a plurality of longitudinally distributed heating wires are uniformly arranged in the furnace shell, and the heating wires are electrically connected with the temperature control device and used for adjusting the heating temperature of the metal blank.
2. The furnace of claim 1, further comprising a furnace cover, wherein said furnace cover is mounted on top of said furnace shell during heating.
3. The heating furnace for hot pressing and compounding the ultra-large specification metal blank according to claim 1, further comprising a pressurizing circular table, wherein the pressurizing circular table covers the top end of the metal blank during pressing.
4. The heating furnace for the hot pressing compounding of the oversized metal blank as claimed in claim 1, wherein the temperature control device comprises a wiring bin, a temperature sensor and an electric control cabinet, the wiring bin is mounted on one side outside the furnace shell, a movable plug capable of sliding up and down is mounted at the bottom of the wiring bin, and three jacks matched with the movable plug are arranged at the top of the wiring bin; a bottom jack matched with the movable plug is arranged above the pressure-bearing base, and the bottom jack is connected with the electric control cabinet through a power line; the pressure-bearing base is provided with a placing table at the central position, the temperature sensor is installed on the inner side of the upper part of the placing table, and the temperature sensor is electrically connected with the electric control cabinet.
5. The heating furnace for hot pressing and compounding the ultra-large specification metal blanks as claimed in claim 4, wherein an ammeter, a voltmeter, a temperature setter and a button of a three-phase power supply are respectively arranged on the front side of the electric control cabinet.
6. The furnace according to claim 1, wherein the furnace shell has a convex ring at the top and a concave groove at the bottom for fitting the convex ring.
7. The heating furnace for hot-pressing compounding of ultra-large-sized metal blanks according to claim 2, wherein heat insulating materials are filled on the pressure-bearing base, in the furnace shell and in the furnace cover.
8. The heating furnace for hot pressing compounding of the oversized metal blank as claimed in claim 1, wherein the cooling water circulation system comprises a cooling water tank, a water inlet pipe, a water outlet pipe and an air cooler, one end of the water inlet pipe is connected with the cooling water tank, the other end of the water inlet pipe is connected with a water inlet of the pressure-bearing base, and a water pump is mounted on the water inlet pipe; one end of the water outlet pipe is connected with a water outlet of the pressure-bearing base, and the other end of the water outlet pipe is connected with the cooling water tank; and an air cooler is installed on the cooling water tank, and a water changing port is arranged on the cooling water tank.
9. The heating furnace for hot-pressing compounding of oversized metal blanks as claimed in claim 1, wherein longitudinal and transverse reinforcing ribs are arranged outside the furnace shell to ensure the strength in the lifting process.
10. The heating furnace for the hot pressing compounding of the oversized metal blank as claimed in claim 2, wherein lifting lugs are connected above the pressure-bearing base, around the furnace shell and above the furnace cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223005563.9U CN218503260U (en) | 2022-11-11 | 2022-11-11 | Heating furnace for hot-pressing compounding of metal blanks with ultra-large specifications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223005563.9U CN218503260U (en) | 2022-11-11 | 2022-11-11 | Heating furnace for hot-pressing compounding of metal blanks with ultra-large specifications |
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| Publication Number | Publication Date |
|---|---|
| CN218503260U true CN218503260U (en) | 2023-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223005563.9U Active CN218503260U (en) | 2022-11-11 | 2022-11-11 | Heating furnace for hot-pressing compounding of metal blanks with ultra-large specifications |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218503260U (en) |
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- 2022-11-11 CN CN202223005563.9U patent/CN218503260U/en active Active
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