CN112170794A - Combined type abdomen cooling crystallizer for producing track section bar - Google Patents
Combined type abdomen cooling crystallizer for producing track section bar Download PDFInfo
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- CN112170794A CN112170794A CN202011058253.6A CN202011058253A CN112170794A CN 112170794 A CN112170794 A CN 112170794A CN 202011058253 A CN202011058253 A CN 202011058253A CN 112170794 A CN112170794 A CN 112170794A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/009—Continuous casting of metals, i.e. casting in indefinite lengths of work of special cross-section, e.g. I-beams, U-profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
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Abstract
The invention discloses a combined type abdomen cooling crystallizer for producing a track section, which comprises a trapezoid graphite bushing, wherein a water-cooling interlayer plate is arranged on the outer side surface of the trapezoid graphite bushing, the adjacent water-cooling interlayer plates are fixedly connected through a clamping clamp, an I-shaped cavity and two through holes are formed in the trapezoid graphite bushing, the two through holes are respectively positioned at the waist parts on two sides of a vertical rib of the I-shaped cavity, an abdomen cooling pipe with a closed end part is arranged in each through hole, and a water outlet pipe and a water inlet pipe which are communicated with the abdomen cooling pipe are arranged on the water-cooling interlayer plates on two side surfaces of the. The combined type belly cold crystallizer can uniformly cool all parts on the periphery of the cross section of the I-shaped section, is beneficial to drawing out the section at a determined speed, avoids molten iron leakage and cracks on the corners of the section, simultaneously ensures that the casting state tissues on the full section of the section are the same, and improves the comprehensive mechanical property of the I-shaped section such as a track.
Description
Technical Field
The invention belongs to the technical field of cast iron section bar continuous casting equipment, and relates to a combined type abdomen cooling crystallizer for producing a track section bar.
Background
The crystallizer for continuously casting cast iron section is a water cooling device which is fixedly connected on a heat preserving furnace, restrains the shape of molten iron flowing into the heat preserving furnace from the heat preserving furnace, cools the molten iron to solidify and crust, and can continuously pull out the crust section by utilizing the lubricating action of a graphite lining. The crystallizer is generally divided into an integral type crystallizer and a combined type crystallizer, wherein the circular section and the small-size special-shaped section are drawn by using a circular integral sleeve type crystallizer, and the large-size rectangular section is drawn by using the combined type crystallizer formed by combining four flat plate type crystallizers.
When drawing cast iron section bar (i.e. "cast iron bar") with circular section, the circular temperature field provided by the sleeve-shaped integral crystallizer is identical to the section bar cross section, the surface layer of the section bar is uniformly cooled, and the solidified tubular shell has uniform thickness on the same cross section, so that it can be drawn at definite speed. However, when the cast iron section with the special-shaped section is drawn, the surface layer of the section cannot be uniformly cooled, and the solidified shell is different in thickness, so that a problem is solved; if the drawing speed is slow, some parts (especially the part with small curvature radius) of the profile solidification layer are thick at the tail end part of the crystallizer, the temperature of the shell is too low, the material performance is in a brittle area, and cracks can occur under the drawing force. Therefore, for a long time, the curvature radius of the outer edge of the cast iron section with the special-shaped section cannot be changed violently, so that the section size of the cast iron section is not large and accurate, and the cast iron section cannot be rolled like a continuous casting billet, so that the near-net forming is difficult to realize, the machining allowance is large, and the waste of materials and energy is caused. In addition, the difference between the grain size of the as-cast structure and the size of graphite nodules is large due to the different cooling speeds at various positions on the cross section, so that the difference between the mechanical properties at various positions on the cross section is large.
Theoretically, the above problems are summarized as follows: how to provide a uniform cooling speed and temperature field for continuous casting sections with large variation of the radius of curvature at the periphery of the cross section. The most realistic manifestation of this problem is that it is not possible to draw i-shaped profiles, such as railway rails and crane rails, using the conventional continuous casting method, because the continuous casting of i-shaped profiles, whether using round integrated crystallizers or rectangular combined crystallizers, does not allow a uniform cooling of the cross-section of the profile, because the cooling speed is the slowest with the studs of the profile in the intermediate positions. As the speed of high-speed railways is higher and higher, noise pollution becomes a big nuisance because conventional rail materials (U71MnG, U75VG, etc.) have no sound-absorbing and shock-absorbing function and are difficult to suppress vibration and noise between wheel rails. Research shows that the full-section ultra-fine I-shaped ductile iron section bar is drawn by a continuous casting method, and the full-section ultra-fine I-shaped ductile iron section bar has enough mechanical properties and sound-absorbing and shock-absorbing physical properties depending on the damping internal consumption function between graphite and a matrix through special heat treatment, and can be used as an ideal material for low-noise high-speed rail tracks.
In the manufacturing process, the I-shaped rails made of U71MnG and U75VG steel can be manufactured by rolling, however, the rolling process cannot be used for nodular cast iron, graphite nodules are flattened in the rolling process, so that the mechanical property of the material is greatly reduced and the material can not be used, so that nodular cast iron sections with I-shaped sections must be directly and continuously cast, drawing cracks are not allowed on the surfaces of the sections, and the graphite nodules on the cross sections must be distributed finely, roundly and uniformly everywhere. The studs of the I-shaped section bar are positioned in the middle position, and the traditional round or rectangular crystallizer cannot rapidly cool the I-shaped section bar, so that the cast structure and the mechanical property which are consistent with the top and the bottom of the track cannot be obtained. Obviously, in order to continuously cast i-shaped rail profiles, it is necessary to develop a mold that can uniformly and rapidly cool the periphery of an i-shaped rail with a complex cross section.
Disclosure of Invention
The invention aims to provide a combined type abdomen cooling crystallizer for producing a track section, which solves the problem that the existing crystallizer cannot provide a complex temperature field required by uniform and rapid cooling of the full section of an I-shaped section.
The technical scheme adopted by the invention is that the combined type abdomen cooling crystallizer for producing the track section comprises a trapezoidal graphite bushing, wherein water-cooling sandwich plates are arranged on the upper part, the lower part, the left part and the right part of the trapezoidal graphite bushing, and the adjacent water-cooling sandwich plates are connected and fixed through clamping clamps to form a trapezoidal water-cooling steel sleeve. An I-shaped cavity and two through holes are formed in the graphite lining, the two through holes are respectively located in the waist portions of the two sides of the I-shaped cavity, an abdominal cooling pipe with a sealed end portion is arranged in each through hole, the cross section of the abdominal cooling pipe is divided into a circular shape and a long-strip circular shape (namely, the two ends are semicircular, and the middle is rectangular), the height of each opposite rib is smaller than 70mm, a circular abdominal cooling pipe crystallizer is used, the diameter of the pipe is 1.5 inches, the nearest distance between the inner side of the abdominal cooling pipe and a section bar vertical rib (namely, the thinnest part of graphite) is not smaller than 20mm, if the height of the vertical rib of the I-shaped section bar is larger than 70mm, the diameter of the semicircular ends of the long-strip circular abdominal cooling pipe crystallizer is also 1.5 inches, and the nearest distance between; the water-cooling sandwich plates on the left and right sides of the trapezoidal graphite bush are provided with a water outlet pipe and a water inlet pipe which are communicated with the abdominal cooling pipe.
The present invention is also technically characterized in that,
the clamping card consists of two number-matching clamping plates, a bolt and a nut, and the two clamping plates are connected and fixed through the bolt and the nut.
The top of the trapezoidal graphite lining is provided with a top water-cooling sandwich plate, a water flow channel is arranged inside the top water-cooling sandwich plate, and a top plate water outlet nozzle and a top plate water inlet nozzle which are communicated with the water flow channel are arranged outside the top water-cooling sandwich plate.
The bottom of the trapezoidal graphite lining is provided with a bottom water-cooling sandwich plate, a water flow channel is arranged inside the bottom water-cooling sandwich plate, and a bottom plate water outlet nozzle and a bottom plate water inlet nozzle which are communicated with the water flow channel are arranged outside the bottom water-cooling sandwich plate.
The outer portion of the left side of the trapezoidal graphite bushing is provided with a left side water-cooling sandwich plate, a water flow channel is arranged inside the left side water-cooling sandwich plate, a left side plate water inlet nozzle and a left side plate water outlet nozzle which are communicated with the water flow channel are arranged outside the water-cooling sandwich plate, and a left side abdominal cooling water inlet pipe and a left side abdominal cooling water outlet pipe which are communicated with the left side abdominal cooling pipe are arranged.
The outer right side water-cooling sandwich panel that is provided with of trapezoidal graphite bush right flank, the inside rivers passageway that is provided with of right side water-cooling sandwich panel, the outside be provided with the right side board water inlet nozzle and the right side board faucet of rivers passageway intercommunication, with the cold right side abdomen cold water inlet tube and the outlet pipe of pipe intercommunication of the abdomen on right side.
A root trapezoidal flange plate is arranged outside the end part of the liquid inlet of the crystallizer and is used for being connected with a heat preservation furnace; the outer part of one end of the profile outlet is provided with a trapezoidal pressure plate for blocking the trapezoidal graphite lining and preventing the trapezoidal graphite lining from being pulled out of a trapezoidal steel sleeve combined by four water-cooling clamping plates, and the trapezoidal pressure plate is connected with the outer end faces of the four water-cooling sandwich plates through screws.
The through hole is a circular through hole or a rectangular long-strip-shaped through hole in the middle of the two semicircular ends, when the through hole is a circular through hole, the minimum distance from the inner side of the through hole to the inner wall of the I-shaped cavity is not less than 20mm, and when the through hole is a rectangular long-strip-shaped through hole in the middle of the two semicircular ends, the minimum distance from the inner side of the through hole to the inner wall of the I-shaped cavity is not less than 15.
The invention has the advantages that through holes are arranged at two sides of the I-shaped cavity of the trapezoidal graphite lining, and the abdomen cooling pipe with a closed end is embedded in the through holes, so that the cooling speed of the vertical rib in the middle of the track section is enhanced by water cooling of the abdomen cooling pipe in the continuous casting process of the track section; through adjusting the water flow in two belly abdomen cold tubes and four water-cooling sandwich panels, make each position of track section bar cross section periphery obtain even cooling, obtain following benefit:
(1) according to the size of the I-shaped rail stud, the specific positions and the water flow of the abdomen cooling pipes on the two sides of the I-shaped rail stud are adjusted, so that the cooling speeds of the rail top, the stud and the bottom edge of the rail section are consistent, and the temperatures of the section when the section is pulled out of the crystallizer are consistent, so that the optimal drawing speed can be determined, and the drawing leakage accident is avoided;
(2) the size of the as-cast structure and the graphite nodules on the full section of the section is uniform, and the mechanical property and the physical property after heat treatment are also uniform;
(3) according to the size of the bottom edge of the I-shaped rail, the water flow of the lower water-cooling sandwich plate is adjusted, so that two ends of the bottom edge of the rail are prevented from being cooled too fast, and drawing cracks can be prevented from occurring at the position.
Drawings
FIG. 1 is a schematic view of the external structure of a combined type abdominal cooling crystallizer in embodiment 1 of the present invention;
FIG. 2 is a schematic view of the internal structure of the combined type abdominal cooling crystallizer in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of a cold abdominal tube in the combined cold abdominal crystallizer in example 1 of the present invention;
FIG. 4 is a schematic structural view of a trapezoidal graphite bushing in the combined type abdominal cooling crystallizer in the embodiment 1 of the present invention;
FIG. 5 is a schematic view showing the external structure of the combined type abdominal cooling crystallizer in embodiment 2 of the present invention;
FIG. 6 is a schematic view showing the internal structure of a combined type abdominal cooling crystallizer in embodiment 2 of the present invention;
FIG. 7 is a schematic structural view of a cold abdominal tube in the combined cold abdominal crystallizer in example 2 of the present invention;
fig. 8 is a schematic structural view of a trapezoidal graphite bushing in a combined-type abdominal cooling crystallizer in embodiment 2 of the present invention.
In the figure, 1, a root flange plate, 2, a clamping clamp, 3, a right side plate water outlet nozzle, 4, a right side abdomen cold water outlet pipe, 5, an I-shaped cavity, 6, a right side abdomen cold water inlet pipe, 7, a right side plate water inlet nozzle, 8, a bottom plate water inlet nozzle, 9, a trapezoid pressing plate, 10, a bottom plate water outlet nozzle, 11, a trapezoid graphite lining, 12, a through hole, 13, a left side abdomen cold water inlet pipe, 14, a left side plate water inlet nozzle, 15, a top plate water outlet nozzle, 16, a top plate water inlet nozzle, 17, an abdomen cold pipe, 18, a top water-cooling interlayer plate, 19, a bottom water-cooling interlayer plate, 20, a right side water-cooling interlayer plate, 21, a clamping plate, 22, a bolt, 23, a nut.
Detailed Description
The following describes, with reference to the accompanying drawings, a method for manufacturing and assembling a mold for drawing an i-shaped profile with short studs according to the present invention.
Example 1
The invention relates to a combined type abdomen cooling crystallizer for producing short vertical bar (the height of a vertical bar is less than 70mm) track section bars, which comprises a trapezoidal graphite bush 11, wherein four water-cooling sandwich plates are arranged on the outer side surface of the trapezoidal graphite bush 11, the adjacent water-cooling sandwich plates are fixedly connected through a clamping card 2, an I-shaped cavity 5 and two circular through holes 12 are formed in the trapezoidal graphite bush 11, the diameter of each through hole is 1.5 inches (namely 37.5 mm), the two through holes 12 are respectively positioned at the waist parts at two sides of the I-shaped cavity 5, the distance between the inner side of each through hole and the vertical bar of the section bar is not less than 20mm, a copper thick-wall abdomen cooling pipe 17 with a sealed end part is arranged in each through hole 12, and a water outlet pipe and a water inlet pipe which are communicated with the abdomen cooling pipe.
The structural design and the manufacturing process of the upper and lower water-cooled sandwich plates forming the trapezoidal steel jacket are the same as those of the sandwich plate used for the common continuous casting rectangular section, and the water-cooled sandwich plates on the left and the right sides are respectively provided with two holes into which a water inlet pipe and a water outlet pipe for cooling the abdomen are respectively inserted.
The clamping card 2 consists of two opposite type clamping plates 21, a bolt 22 and a nut 23, and the two clamping plates 21 are fixedly connected through the bolt 22 and the nut 23.
The top of the trapezoidal graphite lining 11 is provided with a top water-cooling sandwich plate 18, a water flow channel is arranged inside the top water-cooling sandwich plate 18, and a top plate water outlet nozzle 15 and a top plate water inlet nozzle 16 which are communicated with the water flow channel are arranged outside the top water-cooling sandwich plate 18. The sandwich plate has the same structure and manufacture as those of common continuous casting.
The bottom of the trapezoidal graphite lining 11 is provided with a bottom water-cooling sandwich plate 19, a water flow channel is arranged inside the bottom water-cooling sandwich plate 19, and a bottom plate water outlet nozzle 10 and a bottom plate water inlet nozzle 8 which are communicated with the water flow channel are arranged outside the bottom water-cooling sandwich plate 19. The structure and the manufacture of the sandwich plate are completely the same as those used in common continuous casting.
Referring to fig. 3, a left side water-cooling sandwich plate is arranged outside the left side surface of the trapezoidal graphite lining 11, a water flow channel is arranged inside the left side water-cooling sandwich plate, a left side plate water inlet nozzle 14 and a left side plate water outlet nozzle which are communicated with the water flow channel are arranged outside the left side water-cooling sandwich plate, and a left side abdominal cooling water inlet pipe 13 and a left side abdominal cooling water outlet pipe which are communicated with a left abdominal cooling pipe 17 are arranged outside the.
The outer right side water-cooling sandwich panel 20 that is provided with of 11 right side faces of trapezoidal graphite bush, the inside rivers passageway that is provided with of right side water-cooling sandwich panel 20, the outside is provided with the right side board intake nozzle 7 and the right side board faucet 3 with rivers passageway intercommunication, the cold inlet tube of right side abdomen 6 and the cold outlet pipe 4 of right side abdomen with the cold pipe 17 intercommunication on right side.
Referring to fig. 4, the side of the trapezoidal graphite bushing near the two ends of the through hole 12 is provided with a through hole 24 through which the left abdominal cooling water inlet pipe 13, the left abdominal cooling water outlet pipe, the right abdominal cooling water inlet pipe 6 and the right abdominal cooling water outlet pipe 4 can pass.
Example 2
The invention relates to a combined type abdomen cooling crystallizer for producing long vertical rib (the height of a vertical rib is more than 70mm) track sectional materials, which comprises a trapezoidal graphite bush 11, wherein four water-cooling sandwich plates are arranged on the outer side surface of the trapezoidal graphite bush 11, the adjacent water-cooling sandwich plates are fixedly connected through a clamping card 2, an I-shaped cavity 5 and two elongated through holes 12 with semi-circular centers and rectangular middle parts at two ends are arranged in the trapezoidal graphite bush 11, the diameter of the semi-circular center is 1.5 inches, namely 37.5mm, the two through holes 12 are respectively positioned at the waist parts at two sides of the I-shaped cavity 5, the distance between the inner wall of the through hole and the vertical rib of the sectional material is not less than 15mm, a copper thick-wall abdomen cooling pipe 17 with a closed end part is arranged in the through hole 12, and water outlet pipes and water inlet pipes communicated with the abdomen.
The top of the trapezoidal graphite lining 11 is provided with a top water-cooling sandwich plate 18, a water flow channel is arranged inside the top water-cooling sandwich plate 18, and a top plate water outlet nozzle 15 and a top plate water inlet nozzle 16 which are communicated with the water flow channel are arranged outside the top water-cooling sandwich plate 18. The bottom of the trapezoidal graphite lining 11 is provided with a bottom water-cooling sandwich plate 19, a water flow channel is arranged inside the bottom water-cooling sandwich plate 19, and a bottom plate water outlet nozzle 10 and a bottom plate water inlet nozzle 8 which are communicated with the water flow channel are arranged outside the bottom water-cooling sandwich plate 19.
Referring to fig. 7, a left side water-cooling sandwich plate is arranged outside the left side surface of the trapezoidal graphite lining 11, a water flow channel is arranged inside the left side water-cooling sandwich plate, a left side plate water inlet nozzle 14 and a left side plate water outlet nozzle which are communicated with the water flow channel are arranged outside the left side water-cooling sandwich plate, and a left side abdominal cooling water inlet pipe 13 and a left side abdominal cooling water outlet pipe which are communicated with a left abdominal cooling pipe 17 are arranged outside the.
The outer right side water-cooling sandwich panel 20 that is provided with of 11 right side faces of trapezoidal graphite bush, the inside rivers passageway that is provided with of right side water-cooling sandwich panel 20, the outside is provided with the right side board intake nozzle 7 and the right side board faucet 3 with rivers passageway intercommunication, the cold inlet tube of right side abdomen 6 and the cold outlet pipe 4 of right side abdomen with the cold pipe 17 intercommunication on right side.
Referring to fig. 8, the side of the trapezoidal graphite bushing near the two ends of the through hole 12 is provided with a through hole 24 through which the left abdominal cooling water inlet pipe 13, the left abdominal cooling water outlet pipe, the right abdominal cooling water inlet pipe 6 and the right abdominal cooling water outlet pipe 4 can pass.
When the combined type abdominal cooling crystallizer is used, the combined type abdominal cooling crystallizer is firstly assembled, and then the assembled crystallizer is connected with a heat preservation furnace through the root trapezoidal flange plate.
The steps for assembling the combined type abdominal cooling crystallizer of the invention are as follows:
1. pressing four water-cooled sandwich plates around the processed trapezoidal graphite bush to form a trapezoidal steel sleeve;
2. welding a root flange plate 1 outside the end part of the liquid inlet of the crystallizer;
3. and the trapezoidal pressing plate is fixed at the outer end of the trapezoidal steel sleeve at the outlet end of the section bar by screws.
4. Inserting the left and right flank cold pipes into the through holes of the graphite lining;
5. the left side abdomen cold water inlet pipe 13, the left side abdomen cold water outlet pipe, the right side abdomen cold water inlet pipe 6 and the right side abdomen cold water outlet pipe 4 are inserted into the corresponding water-cooling sandwich plate and are in threaded connection with the abdomen cold pipe, the water inlet and outlet pipe is welded with the bottom plate of the water-cooling sandwich plate, the cover plate of the water-cooling sandwich plate is covered, and the water inlet and outlet pipe is sealed and welded with the bottom plate and the water inlet and outlet pipe.
6. And a water inlet and outlet nozzle is welded on the cover plate of the water-cooling sandwich plate.
Note that in the actual assembly, the above operations involved in the drilling, tapping, etc. of the water-cooled sandwich panel, graphite lining, and cold-rolled pipe can also be performed on site to avoid too large dimensional errors.
Claims (8)
1. The utility model provides a combination formula abdomen cold crystallizer for track section bar production, a serial communication port, including trapezoidal graphite bush (11), be provided with water-cooling sandwich panel on trapezoidal graphite bush (11) lateral surface, adjacent water-cooling sandwich panel passes through holding clip (2) and connects fixedly, I-shaped die cavity (5) and two through-holes (12) have been seted up to the inside of trapezoidal graphite bush (11), two through-holes (12) are located I-shaped die cavity (5) both sides waist respectively, inside abdomen cold tube (17) that tip is sealed that are provided with of through-hole (12), be provided with outlet pipe and the inlet tube that is linked together with abdomen cold tube (17) on the water-cooling sandwich panel of trapezoidal graphite bush (11) both sides face.
2. A modular belly cold crystallizer for the production of track profiles according to claim 1, characterized in that the clamp (2) consists of two opposite type clamp plates (21), a bolt (22) and a nut (23), the two clamp plates (21) are connected and fixed by the bolt (22) and the nut (23).
3. The combined type abdomen cooling crystallizer for the production of track sections as claimed in claim 1, wherein the trapezoidal graphite lining (11) is provided with a top water-cooled sandwich plate (18) at the top, the top water-cooled sandwich plate (18) is internally provided with a water flow channel, and the outside is provided with a top plate water outlet nozzle (15) and a top plate water inlet nozzle (16) which are communicated with the water flow channel.
4. The combined type abdominal cooling crystallizer for producing the track section bar according to claim 1, wherein the trapezoidal graphite lining (11) is provided with a bottom water-cooling interlayer plate (19) at the bottom, a water flow channel is arranged inside the bottom water-cooling interlayer plate (19), and a bottom water outlet nozzle (10) and a bottom water inlet nozzle (8) which are communicated with the water flow channel are arranged outside the bottom water-cooling interlayer plate.
5. The combined type abdomen cooling crystallizer for the production of track profiles as claimed in claim 1, wherein a left side water-cooling sandwich plate is arranged outside the left side surface of the trapezoidal graphite lining (11), a water flow channel is arranged inside the left side water-cooling sandwich plate, a left side plate water inlet nozzle (14) and a left side plate water outlet nozzle which are communicated with the water flow channel are arranged outside the left side water-cooling sandwich plate, and a left side abdomen cooling water inlet pipe (13) and a left side abdomen cooling water outlet pipe which are communicated with the left side abdomen cooling pipe (17) are arranged.
6. The combined type abdomen cooling crystallizer for the production of track profiles as claimed in claim 1, wherein a right side water-cooling interlayer plate (20) is arranged outside the right side surface of the trapezoidal graphite lining (11), a water flow channel is arranged inside the right side water-cooling interlayer plate (20), a right side plate water inlet nozzle (7) and a right side plate water outlet nozzle (3) which are communicated with the water flow channel are arranged outside the right side water-cooling interlayer plate (20), and a right side abdomen cooling water inlet pipe (6) and a right side abdomen cooling water outlet pipe (4) which are communicated with the right side abdomen cooling pipe (17) are arranged outside the right side water-.
7. The combined type abdomen cooling crystallizer for the production of the track section bar according to claim 1, wherein a root flange (1) is arranged outside the liquid inlet end part of the trapezoidal graphite bushing (11) and is used for being connected with a holding furnace, a trapezoidal pressure plate (9) is arranged outside the end of the section bar, which is pulled out, and the trapezoidal pressure plate (9) is connected with four water-cooled sandwich plates through screws.
8. The combined type abdomen cooling crystallizer for the production of the track section bar according to the claim 1, characterized in that the through hole (12) is a circular through hole or a rectangular through hole with two semi-circular ends and a middle rectangle, when the through hole (12) is a circular through hole, the minimum distance between the inner side of the through hole (12) and the inner wall of the I-shaped cavity (5) is not less than 20mm, when the through hole (12) is a rectangular through hole with two semi-circular ends and a middle rectangle, the minimum distance between the inner side of the through hole (12) and the inner wall of the I-shaped cavity (5) is not less than 15 mm.
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| JP3122352B2 (en) * | 1995-10-12 | 2001-01-09 | 三菱重工業株式会社 | Mold for continuous casting equipment |
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| CN1436622A (en) * | 2002-01-31 | 2003-08-20 | Km欧洲钢铁股份有限公司 | Mould pipe |
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| CN101612661A (en) * | 2009-07-15 | 2009-12-30 | 饶云福 | A kind of electro-slag continuous stripping heavy caliber uniform section hollow steel ingot device that is used for |
| CN202270948U (en) * | 2011-09-27 | 2012-06-13 | 中冶南方工程技术有限公司 | Special-shaped blank crystallizer capable of enhancing turbulence cooling effect |
| CN202291314U (en) * | 2011-10-26 | 2012-07-04 | 中冶南方工程技术有限公司 | H-shaped beam blank continuous casting crystallizer |
| CN102962415A (en) * | 2012-12-14 | 2013-03-13 | 莱芜钢铁集团有限公司 | H-shaped combined crystallizer |
| WO2014174445A1 (en) * | 2013-04-23 | 2014-10-30 | Danieli & C. Officine Meccaniche Spa | Apparatus for continuous casting |
| CN104928616A (en) * | 2015-07-01 | 2015-09-23 | 西峡龙成特种材料有限公司 | Thermal spraying method for slab continuous-casting and chamfering crystallizer narrow copper plate |
| CN109226715A (en) * | 2018-10-09 | 2019-01-18 | 广州市型腔模具制造有限公司 | A kind of inner eccentric holes moulding mixture cylinder cooling system |
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