CN116921640B - Cooling traction device and method for horizontal continuous casting copper pipe - Google Patents
Cooling traction device and method for horizontal continuous casting copper pipe Download PDFInfo
- Publication number
- CN116921640B CN116921640B CN202310933324.XA CN202310933324A CN116921640B CN 116921640 B CN116921640 B CN 116921640B CN 202310933324 A CN202310933324 A CN 202310933324A CN 116921640 B CN116921640 B CN 116921640B
- Authority
- CN
- China
- Prior art keywords
- cooling
- water
- water outlet
- copper pipe
- water channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 105
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000010949 copper Substances 0.000 title claims abstract description 97
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 97
- 238000009749 continuous casting Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 147
- 239000000498 cooling water Substances 0.000 claims abstract description 86
- 230000000694 effects Effects 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 description 15
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
-
- 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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to the technical field of copper pipe production, in particular to a cooling traction device and a method for horizontally continuous casting copper pipes, wherein the device comprises: the cooling assembly comprises an outer sleeve and an inner sleeve, the diameters of the two ends of the inner sleeve are increased to form flanges, the outer sleeve is sleeved on the outer shaft surface of the inner sleeve, and the two ends of the outer sleeve are respectively abutted with end surfaces opposite to the flanges; a first water channel and a second water channel are axially arranged inside the outer sleeve; the flange is provided with a first water outlet, a second water outlet and a third water outlet, and the first water outlet and the third water outlet are correspondingly arranged with the first water channel; the side of the flange, which is away from the outer sleeve, is also provided with a guide plate, and the guide plate is fixed on the end surface of the flange, is positioned between the first water outlet and the second water outlet and is obliquely arranged towards one side of the second water outlet; the contact area of the cooling water and the copper pipe blank is further increased, so that the copper pipe blank can form effective continuous contact with the cooling water, and the cooling effect and the cooling efficiency are ensured.
Description
Technical Field
The invention relates to the technical field of copper pipe production, in particular to a cooling traction device and a method for horizontally continuous casting copper pipes.
Background
Copper tubes are widely used as important parts in tube heat exchangers because of their good electrical and thermal conductivities, and in the production process, the horizontal continuous casting process is one of the important processes for manufacturing precision copper tubes, which melts and casts copper materials into copper tube blanks having the shape of copper tubes with thicker side walls, and the copper tube blanks are processed into final precision copper tube products by processes such as pultrusion, rolling and the like in subsequent steps.
In the horizontal continuous casting process, two sets of cooling systems are required to be arranged to cool the crystallizer and the copper pipe blank respectively so as to ensure safe production and production effect of the copper pipe blank; as shown in fig. 1, the copper pipe blank 02 is usually cooled by adopting a water cooling mode, namely, after the copper pipe blank 02 is extruded by the crystallizer 01, a cooling mechanism 04 is arranged, heat of the axial side surface of the copper pipe blank 02 is taken away by continuously flowing water, however, due to gravity and traction of the traction mechanism 03, most of flowing water is contacted with the lower side surface of the copper pipe blank, the upper side surface is difficult to form continuous and large-area contact with the flowing water, so that the copper pipe blank is unevenly cooled, uniformity of a casting blank structure is influenced, thereby influencing the performance of a product, and the working progress is influenced by increasing the cooling time to ensure the quality of the casting blank, so that the production efficiency is not benefited.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the cooling traction device and the method for the horizontal continuous casting copper pipe are provided, and the cooling effect and the cooling efficiency of the copper pipe blank are effectively ensured.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a cooling traction device for a horizontal continuous casting copper pipe, comprising: the cooling assembly is positioned above the liquid collecting tank and is arranged along the traction direction of the copper pipe;
the cooling assembly comprises an outer sleeve and an inner sleeve which are coaxially arranged, the diameters of the two ends of the inner sleeve are increased to form a flange, the outer sleeve is sleeved on the outer axial surface of the inner sleeve, and the two ends of the outer sleeve are respectively abutted with end surfaces which are oppositely arranged on the flange;
a first water channel and a second water channel are axially arranged inside the outer sleeve, the first water channel is close to the inner side wall of the outer sleeve, and the second water channel is close to the outer side wall of the outer sleeve; the flange is provided with a first water outlet, a second water outlet and a third water outlet, and the first water outlet and the third water outlet are correspondingly arranged with the first water channel; the second water outlet is arranged corresponding to the second water channel and is positioned on the same shaft diameter as the first water outlet on the end face of the flange;
the flange is far away from one side of the outer sleeve pipe and is also provided with a guide plate, and the guide plate is fixed on the end face of the flange, is positioned between the first water outlet and the second water outlet and is obliquely arranged towards one side of the second water outlet.
Further, a first switching groove and a second switching groove are formed in the end portion of the outer sleeve, a third switching groove is formed in one side, facing the outer sleeve, of the flange, and a first electromagnet, a second electromagnet and a third electromagnet are respectively arranged in the first switching groove, the second switching groove and the third switching groove;
when the third electromagnet is adsorbed to the first electromagnet, only the third water outlet is communicated with the first water channel; when the third electromagnet is adsorbed by the second electromagnet, the first water outlet is communicated with the first water channel, and the second water outlet is communicated with the second water channel.
Furthermore, the guide plate is in an annular horn mouth shape, and one end with a smaller diameter is fixedly connected with the end face of the flange.
Further, a plurality of groups of turbulence assemblies are arranged on the guide plate, and the turbulence assemblies are arranged in one-to-one correspondence with the second water outlets;
the vortex subassembly includes vortex portion, jackshaft, elastic component, guide pin bushing and sprue bushing, the guide pin bushing is fixed on the lateral wall of guide plate, the vortex portion cup joints the one end of jackshaft is located on the inside wall of guide plate, the jackshaft other end passes the guide plate with the guide pin bushing, with sprue bushing fixed connection, the elastic component cup joints on the jackshaft, restrict in the guide pin bushing, and both ends respectively with the sprue bushing with the lateral wall butt of guide plate.
Further, the turbulence part comprises a sleeve and a plurality of turbulence plates, the sleeve is sleeved on the intermediate shaft, at least 3 turbulence plates are fixedly connected with the outer axial surface of the sleeve, and the turbulence plates are uniformly arranged around the sleeve as the center; the disturbance plate is twisted from one end of the sleeve to the other end.
Furthermore, the middle part of the inner sleeve is provided with a guide hole in a penetrating way along the axial direction, and the diameter of the guide hole is larger than the outer diameter of the copper pipe blank.
Further, a water inlet is formed in the outer sleeve, the water inlet is communicated with the first water channel and the second water channel, a plurality of through holes are formed in the inner wall of the inner sleeve, and the through holes are communicated with the first water channel.
Further, the machine base is also provided with a transverse moving assembly and a longitudinal moving assembly;
the transverse moving assembly comprises a moving vehicle and a track, wherein rollers are arranged at the bottom of the moving vehicle, the cooling assembly and the liquid collecting tank are fixed at the top of the moving vehicle, the track is arranged along the axial direction of the copper pipe blank, and the rollers roll along the track;
the longitudinal movement assembly comprises a transverse frame, sliding rails, sliding blocks, a motor and a mounting plate, wherein the transverse frame spans the liquid collecting groove, two ends of the transverse frame are fixed on the moving vehicle at two sides of the liquid collecting groove, the sliding rails are arranged along the length direction of the transverse frame, the sliding blocks are matched with the sliding rails, the mounting plate is fixed on one side of the sliding blocks, which is away from the sliding rails, the cooling assembly is arranged on the mounting plate, and the motor is located at one end of the sliding rails and used for driving the sliding blocks to slide along the sliding rails.
Further, one side of the mounting plate, which is away from the sliding block, is further provided with a pair of clamping blocks, the clamping blocks are respectively positioned on two sides of the cooling assembly, and one side of the mounting plate, which is oppositely arranged, forms an arc shape which is adaptive to the outer side wall of the outer sleeve.
The invention also provides a cooling traction method of the horizontal continuous casting copper pipe, which comprises the following steps:
drawing the extruded copper pipe blank onto a stand and passing through a cooling assembly;
cooling water is introduced into the first water channel and the second water channel, and different cooling states are switched according to the current traction rate;
when the traction rate is low, the third water outlet is communicated with the first water channel, and after the cooling water of the first water channel passes through the third water outlet, one part of the cooling water directly contacts with the copper pipe blank to form a cooling effect, and the other part of the cooling water firstly contacts with the inner side wall of the guide plate to be collected and then contacts with the copper pipe blank to form a cooling effect;
when the traction rate is higher, the first water outlet is communicated with the first water channel, the second water outlet is communicated with the second water channel, after the cooling water of the first water channel passes through the first water outlet, one part of the cooling water directly contacts with the copper pipe blank to form a cooling effect, and the other part of the cooling water firstly contacts with the inner side wall of the guide plate to be collected and then contacts with the copper pipe blank to form a cooling effect; after cooling water in the second water channel passes through the second water outlet, one part of the cooling water is directly contacted with the copper pipe blank to form a cooling effect, and the other part of the cooling water is firstly contacted with the outer side wall of the guide plate to be dispersed and then contacted with the copper pipe blank to form a cooling effect;
cooling water discharged through the first water outlet, the second water outlet and the third water outlet is converged into the liquid collecting tank and enters the first water channel and the second water channel again.
The beneficial effects of the invention are as follows: according to the invention, through the first water outlet, the second water outlet and the third water outlet which are arranged at the positions of the flange on the inner sleeve, the switching of the communication function between the first water channel and the second water channel on the outer sleeve can be realized, so that different cooling water quantity control is provided according to different traction rates; meanwhile, after the cooling water of the first water channel passes through the first water outlet or the third water outlet, part of the cooling water is contacted with the inner side wall of the guide plate to have a collecting effect, and then is contacted with the copper pipe blank to form a cooling effect; after the cooling water of the second water channel passes through the second water outlet, the cooling water is in contact with the outer side wall of the guide plate to have a divergent effect, so that the contact area of the cooling water and the copper pipe blank is further increased, the copper pipe blank can be in continuous contact with the cooling water effectively, the phenomenon of uneven cooling is avoided, and the cooling effect and the cooling efficiency are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a cooling pattern of a copper tube blank in the background art;
FIG. 2 is a schematic diagram showing a cooling pattern of a copper pipe blank according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a cooling and drawing device for a horizontal continuous casting copper pipe in an embodiment of the invention;
FIG. 4 is a schematic view of a cooling assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of an inner sleeve according to an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of an outer sleeve according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating operation of a baffle according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a cooling mode switching in an embodiment of the present invention;
FIG. 9 is an assembly view of a spoiler assembly according to an embodiment of the invention;
FIG. 10 is an exploded view of a spoiler assembly according to an embodiment of the present invention;
FIG. 11 is a schematic view illustrating operation of a spoiler assembly according to an embodiment of the invention;
FIG. 12 is a schematic view of a spoiler according to an embodiment of the invention;
FIG. 13 is a schematic view of a lateral movement assembly according to an embodiment of the present invention;
fig. 14 is a schematic structural view of a longitudinal moving assembly according to an embodiment of the present invention.
Reference numerals: 01. a crystallizer; 02. a copper pipe blank; 03. a traction mechanism; 04. a cooling mechanism; 10. a base; 11. a lateral movement assembly; 111. a moving vehicle; 112. a track; 113. a roller; 12. a longitudinally moving assembly; 121. a cross frame; 122. a slide rail; 123. a slide block; 124. a motor; 125. a mounting plate; 126. clamping blocks; 20. a liquid collecting tank; 30. a cooling assembly; 31. an outer sleeve; 31a, a first switching groove; 31b, a second switching groove; 31c, a first electromagnet; 31d, a second electromagnet; 311. a first waterway; 312. a second waterway; 313. a water inlet; 32. an inner sleeve; 32a, flanges; 32b, a third switching groove; 32c, a third electromagnet; 321. a first water outlet; 322. a second water outlet; 323. a third water outlet; 324. a deflector; 325. a guide hole; 326. a through hole; 40. a spoiler assembly; 41. a spoiler; 411. a sleeve; 412. a disturbance plate; 42. an intermediate shaft; 43. an elastic member; 44. guide sleeve; 45. and (5) blocking.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The cooling and drawing device for the horizontal continuous casting copper pipe as shown in fig. 2 to 14 comprises: the copper pipe cooling device comprises a machine base 10, a liquid collecting tank 20 and a cooling assembly 30, wherein the liquid collecting tank 20 and the cooling assembly 30 are arranged on the machine base 10, and the cooling assembly 30 is arranged above the liquid collecting tank 20 and is arranged along the copper pipe traction direction;
the cooling assembly 30 comprises an outer sleeve 31 and an inner sleeve 32 which are coaxially arranged, wherein the diameters of two ends of the inner sleeve 32 are increased to form a flange 32a, the outer sleeve 31 is sleeved on the outer axial surface of the inner sleeve 32, and the two ends of the outer sleeve 31 are respectively abutted with end surfaces which are oppositely arranged to the flange 32 a;
a first water channel 311 and a second water channel 312 are axially arranged inside the outer sleeve 31, the first water channel 311 is arranged close to the inner side wall of the outer sleeve 31, and the second water channel 312 is arranged close to the outer side wall of the outer sleeve 31; the flange 32a is provided with a first water outlet 321, a second water outlet 322 and a third water outlet 323, and the first water outlet 321 and the third water outlet 323 are correspondingly arranged with the first water channel 311; the second water outlet 322 is arranged corresponding to the second water channel 312 and is positioned on the same shaft diameter as the first water outlet 321 on the end surface of the flange 32 a;
the side of the flange 32a, which is away from the outer sleeve 31, is also provided with a deflector 324, and the deflector 324 is fixed on the end surface of the flange 32a, is positioned between the first water outlet 321 and the second water outlet 322, and is obliquely arranged towards one side of the second water outlet 322.
The invention can realize the switching of the communication action between the first water channel 311 and the second water channel 312 on the outer sleeve 31 through the first water outlet 321, the second water outlet 322 and the third water outlet 323 which are arranged at the position of the flange 32a on the inner sleeve 32, thereby providing different cooling water quantity control according to different traction rates; meanwhile, after passing through the first water outlet 321 or the third water outlet 323, part of the cooling water in the first water channel 311 contacts with the inner side wall of the guide plate 324 to have a collecting effect, and then contacts with the copper pipe blank 02 to form a cooling effect; after the cooling water of the second water channel 312 passes through the second water outlet 322, the cooling water is firstly contacted with the outer side wall of the guide plate 324 to have a divergent effect, so that the contact area of the cooling water and the copper pipe blank 02 is further increased, the copper pipe blank 02 can be in continuous contact with the cooling water effectively, the phenomenon of uneven cooling is avoided, and the cooling effect and the cooling efficiency are ensured.
It should be noted that, the volume of the liquid collecting tank 20 is larger, on the one hand, the cooling water flowing out from the first water outlet 321, the second water outlet 322 and the third water outlet 323 can be contained, on the other hand, due to the arrangement of the guide plate 324, the space range of the flowing cooling water is enlarged, the liquid collecting tank 20 is larger, the cooling water can be effectively prevented from splashing, meanwhile, the cooling liquid entering the liquid collecting tank 20 can be recycled into the first water channel 311 and the second water channel 312 after being treated, and the resource waste is reduced.
Wherein, the inner sidewall of the deflector 324 faces to the side of the first water outlet 321 and the third water outlet 323, and the outer sidewall faces to the side of the second water outlet 322; through setting up guide plate 324 slope towards second delivery port 322 one side, at guide plate 324 inside and outside wall and the contact in-process of cooling water, formed respectively and collected the effect and dispersed the effect, on the one hand extension cooling water and copper pipe blank 02's contact time, on the other hand increase copper pipe blank 02 and cooling water's area of contact, effectively avoid leading to copper pipe blank 02 upper and lower both sides face and the uneven problem of cooling water contact because of cooling water self gravity, improve cooling efficiency, guarantee the cooling effect.
Wherein, in order to facilitate the switching action of the first water outlet 321 and the third water outlet 323, the number of the first water outlet 321 and the third water outlet 323 can be respectively equal to that of the first water channel, and the first water outlet 321 and the third water outlet 323 are mutually arranged at intervals, and the distances between the first water outlet 321 and the third water outlet 323 and the flange axis are equal; namely, after the inner sleeve 32 rotates for a certain angle relative to the outer sleeve 31, the third water outlet 323 can be controlled to be communicated with the first water channel 311, the first water outlets 321 on two sides rotate to a position opposite to the end face of the outer sleeve 31, cooling water flows out of the third water outlet only, and after the inner sleeve 32 rotates for a certain angle in a reverse direction, the first water outlet 321 can be controlled to be communicated with the first water channel 311, and the third water outlets 323 on two sides rotate to a position opposite to the end face of the outer sleeve 31, so that the action effect that the first water outlet 321 and the third water outlet 323 separate water in the water channel switching process is realized.
On the basis of the above embodiment, the end of the outer sleeve 31 is provided with the first switching groove 31a and the second switching groove 31b, the side of the flange 32a facing the outer sleeve 31 is provided with the third switching groove 32b, and the first switching groove 31a, the second switching groove 31b and the third switching groove 32b are respectively provided with the first electromagnet 31c, the second electromagnet 31d and the third electromagnet 32c; when the third electromagnet 32c is attracted to the first electromagnet 31c, only the third water outlet 323 is communicated with the first water channel 311; when the third electromagnet 32c and the second electromagnet 31d are attracted, the first water outlet 321 is communicated with the first water channel 311, and the second water outlet 322 is communicated with the second water channel 312.
In this embodiment, the inner and outer sleeves 31 can be controlled to rotate with each other to realize the switching of different cooling states, the electromagnet is electrified to generate magnetism, and the inner and outer sleeves 31 are difficult to rotate under the action of magnetic attraction; on the contrary, the electromagnet is powered off and loses magnetism, at the moment, the inner sleeve 32 can be controlled to rotate relative to the outer sleeve 31, and the third electromagnet 32c rotates to the first electromagnet 31c or the second electromagnet 31d, so that the distribution proportion of cooling water flowing out of different water outlets is adjusted, and the cooling requirement of the copper pipe blank 02 is met according to different traction rates.
Based on the above embodiment, the baffle 324 is in a shape of a ring-shaped horn mouth, and the smaller diameter end is fixedly connected with the end face of the flange 32 a; through setting up baffle 324 into annular horn mouth form, the cooling water flows to the great one end of diameter from the less one end of diameter to form complete domatic direction, guide the cooling water more quick with copper pipe base 02 surface contact, guarantee the cooling effect.
On the basis of the above embodiment, a plurality of groups of spoiler assemblies 40 are arranged on the spoiler 324, and the spoiler assemblies 40 are arranged in one-to-one correspondence with the second water outlets 322; the spoiler assembly 40 comprises a spoiler 41, an intermediate shaft 42, an elastic piece 43, a guide sleeve 44 and a blocking piece 45, wherein the guide sleeve 44 is fixed on the outer side wall of the guide plate 324, the spoiler 41 is sleeved at one end of the intermediate shaft 42 and positioned on the inner side wall of the guide plate 324, the other end of the intermediate shaft 42 penetrates through the guide plate 324 and the guide sleeve 44 and is fixedly connected with the blocking piece 45, the elastic piece 43 is sleeved on the intermediate shaft 42 and limited in the guide sleeve 44, and two ends of the elastic piece are respectively abutted with the blocking piece 45 and the outer side wall of the guide plate 324.
When the cooling water flows out from the third water outlet 323, the turbulence part 41 will be tightly attached to the inner side wall of the baffle 324 due to the abutting action of the elastic member 43 on the blocking piece 45 and the connection action between the blocking piece 45 and the rotating shaft, so that the cooling water contacts with the inner side wall of the baffle 324 between two adjacent turbulence parts 41, and no disturbance action occurs.
When the cooling water is switched to flow out of the first water outlet 321 and the second water outlet 322, the cooling water flows out of the second water outlet 322 to directly form impulse and extrusion action on the blocking piece 45, so that the blocking piece 45 extrudes the elastic piece 43 to compress, meanwhile, the middle shaft 42 is driven to move along the axis direction towards one side of the inner side wall of the guide plate 324, the spoiler 41 is released to the position corresponding to the first water outlet 321, at the moment, the cooling water flowing out of the first water outlet 321 impacts on the spoiler 41, the spoiler 41 rotates around the middle shaft 42, disturbance action on the cooling water is formed, contact time and contact area between the cooling water and the outer surface of the copper pipe billet 02 are further improved, higher cooling effect is achieved, and performance of subsequent products is guaranteed.
When the cooling water is switched to flow out from the third water outlet 323 again, the squeezing action of the cooling water on the blocking piece 45 is eliminated, the elastic piece 43 is compressed to push the blocking piece 45 to move reversely, and the intermediate shaft 42 is synchronously driven to move towards the outer side wall of the guide plate 324, so that the spoiler 41 is retracted to the initial position.
It should be noted that, when the spoiler assembly 40 is in the non-working state, the elastic member 43 is in the initial compression state, the force of the elastic member 43 on the blocking member 45 and the component force of the spoiler 41 in the compression direction of the elastic member 43 are in the first equilibrium state, and when the cooling water forms an impact force action on the blocking member 45, the impact force action is greater than the force of the elastic member 43, so as to break the first equilibrium state, so that the elastic member 43 is stressed to be further compressed, the spoiler 41 is released to the position corresponding to the first water outlet 321, and as the compression amount of the elastic member 43 is gradually increased, the force of the elastic member 43 on the blocking member 45 is continuously increased until the force of the elastic member 43 on the blocking member 45 and the component force of the spoiler 41 in the compression direction of the elastic member 43 are in the dynamic second equilibrium state, so as to ensure that the spoiler 41 can continuously and stably work; similarly, when the impact of the cooling water on the block 45 is removed, the elastic member 43 will switch from the second equilibrium state to the first equilibrium state, and return to the working state.
It should be noted that the impact force of the cooling water on the blocking member 45 may be set according to the initial acting force of the elastic member 43, and the action switching state of the spoiler 41 is stable by changing the flow speed, the flow rate, the flow cross section size and other factors of the cooling water passing through the second water outlet 322, so as to better ensure the cooling effect.
On the basis of the above embodiment, the spoiler 41 includes a sleeve 411 and a plurality of disturbance plates 412, the sleeve 411 is sleeved on the intermediate shaft 42, at least 3 disturbance plates 412 are fixedly connected with the outer axial surface of the sleeve 411, and the disturbance plates 412 are uniformly arranged around the sleeve 411 as the center; the disturbance plate 412 is twisted from one end of the sleeve 411 toward the other end; when the spoiler 41 works, cooling water flows out from the first water outlet 321 or the third water outlet 323, a part of cooling water impacts the spoiler 412 to push the spoiler 412 to rotate and then to be thrown out along the twisted plate surface of the spoiler 412, and meanwhile, the cooling water is cut when the spoiler 412 rotates, so that the cooling water is uniformly dispersed, the contact time of the cooling water on the surface of the copper pipe blank 02 is prolonged, the contact area with the copper pipe blank 02 is enlarged, and the uniformity of the cooled tissue is ensured.
On the basis of the embodiment, the middle part of the inner sleeve 32 is provided with a guide hole 325 in a penetrating way along the axial direction, and the diameter of the guide hole 325 is larger than the outer diameter of the copper pipe blank 02; after the copper pipe blank 02 is continuously cast and formed, before being sent to a tractor, the copper pipe blank is firstly sent to a cooling assembly 30 along a guide hole 325, cooled by cooling water and then sent to the next working procedure; the diameter of the guide hole 325 is larger than the outer diameter of the copper pipe blank 02, so that the copper pipe blank 02 is effectively prevented from being directly contacted with the inner sleeve 32, and the influence of excessive temperature on the normal operation of the cooling assembly 30 is avoided.
On the basis of the above embodiment, the outer sleeve 31 is provided with the water inlet 313, the water inlet 313 is communicated with the first water channel 311 and the second water channel 312, the inner wall of the inner sleeve 32 is provided with a plurality of through holes 326, and the through holes 326 are communicated with the first water channel 311.
The external cooling water conveying pipeline is connected through the water inlet 313, so that cooling water continuously enters the first water channel 311 and the second water channel 312 through the water inlet 313, the stability of cooling water supply is ensured, through the through holes 326 arranged on the pipe wall of the inner sleeve 32, the cooling water can directly enter the guide holes 325 to be in contact with the outer pipe wall of the copper pipe billet 02 along the through holes 326 while entering the first water channel 311 and the second water channel 312, a cooling effect is formed, the cooling water is discharged from the two ends of the guide holes 325 under the traction effect of the copper pipe billet 02 and enters the liquid collecting tank 20, and therefore the copper pipe billet 02 is firstly cooled under the cooling effect of the first water outlet 321 and the second water outlet 322 or the third water outlet 323, and the cooling effect is further ensured.
Preferably, in order to ensure that the spoiler assemblies 40 corresponding to the positions of the flanges 32a at the two ends of the inner sleeve 32 can work normally, two water inlets 313 can be provided, which are respectively arranged close to the flanges 32a at the two ends and are communicated with the first water channel 311 and the second water channel 312, so that the cooling water can fill the first water channel 311, the second water channel 312 and the through holes 326 more quickly, the flow rate of the cooling water is increased, and the cooling water can flow out from the first water outlet 321 and the second water outlet 322 or the third water outlet 323 more quickly, and the cooling effect is ensured; when the traction rate is low, only one water inlet 313 can be selected to work, so that resources are saved, the number and the form of the water inlets 313 are not limited, and the effects can be achieved.
On the basis of the embodiment, the machine base 10 is also provided with a transverse moving assembly 11 and a longitudinal moving assembly 12; the transverse moving assembly 11 comprises a moving vehicle 111 and a track 112, wherein rollers 113 are arranged at the bottom of the moving vehicle 111, the cooling assembly 30 and the liquid collecting tank 20 are fixed at the top of the moving vehicle 111, the track 112 is arranged along the axial direction of the copper pipe blank 02, and the rollers 113 roll along the track 112; the longitudinal moving assembly 12 comprises a cross frame 121, a sliding rail 122, a sliding block 123, a motor 124 and a mounting plate 125, wherein the cross frame 121 spans the liquid collecting groove 20, two ends of the cross frame 121 are fixed on the moving vehicle 111 on two sides of the liquid collecting groove 20, the sliding rail 122 is arranged along the length direction of the cross frame 121, the sliding block 123 is matched with the sliding rail 122, the mounting plate 125 is fixed on one side of the sliding block 123 away from the sliding rail 122, the cooling assembly 30 is arranged on the mounting plate 125, and the motor 124 is positioned at one end of the sliding rail 122 and used for driving the sliding block 123 to slide along the sliding rail 122.
The position of the cooling assembly 30 and the liquid collecting tank 20 relative to the copper pipe blank 02 can be freely adjusted by arranging the transverse moving assembly 11, and the position of the cooling assembly 30 relative to the liquid collecting tank 20 can be freely adjusted by arranging the longitudinal moving assembly 12, so that the position between the cooling assembly 30 and the copper pipe blank 02 is reasonable, and the copper pipe blank 02 can pass through the guide hole 325; and when the cooling assembly 30 fails, the cooling assembly 30 can be moved to the edge of the frame by the transverse moving assembly 11 and the longitudinal moving assembly 12, so that the maintenance and the assembly are convenient.
On the basis of the above embodiment, a pair of clamping blocks 126 are further arranged on one side of the mounting plate 125 away from the sliding block 123, the clamping blocks 126 are respectively positioned on two sides of the cooling assembly 30, and an arc shape corresponding to the outer side wall of the outer sleeve 31 is formed on the opposite side; through setting up the arc clamp splice 126 that suits with outer tube 31 shape for cooling module 30 can firmly fix on mounting panel 125, avoids receiving the exogenic action not hard up or coming off, guarantees its position and job site stability, and then ensures the cooling effect.
The invention also provides a cooling traction method of the horizontal continuous casting copper pipe, which comprises the following steps:
drawing the extruded copper pipe blank 02 onto the stand 10 and passing through the cooling assembly 30;
cooling water is introduced into the first water channel 311 and the second water channel 312, and different cooling states are switched according to the current traction rate;
when the traction rate is low, the third water outlet 323 is communicated with the first water channel 311, after the cooling water of the first water channel 311 passes through the third water outlet 323, one part of the cooling water directly contacts the copper pipe blank 02 to form a cooling effect, and the other part of the cooling water firstly contacts the inner side wall of the guide plate 324 to be collected and then contacts the copper pipe blank 02 to form a cooling effect;
when the traction rate is higher, the first water outlet 321 is communicated with the first water channel 311, the second water outlet 322 is communicated with the second water channel 312, after the cooling water of the first water channel 311 passes through the first water outlet 321, one part of the cooling water directly contacts with the copper pipe blank 02 to form a cooling effect, and the other part of the cooling water firstly contacts with the inner side wall of the guide plate 324 to be collected and then contacts with the copper pipe blank 02 to form a cooling effect; after passing through the second water outlet 322, one part of the cooling water in the second water channel 312 directly contacts the copper pipe blank 02 to form a cooling effect, and the other part of the cooling water firstly contacts the outer side wall of the guide plate 324 to diverge and then contacts the copper pipe blank 02 to form a cooling effect;
the cooling water discharged through the first, second and third water outlets 321, 322 and 323 is collected into the sump 20, and again enters the first and second water passages 311 and 312.
The specific processes of the above method are specifically described in the above embodiments, and are not described herein again.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A cooling and pulling device for a horizontally continuous casting copper pipe, comprising: the cooling assembly is positioned above the liquid collecting tank and is arranged along the traction direction of the copper pipe;
the cooling assembly comprises an outer sleeve and an inner sleeve which are coaxially arranged, the diameters of the two ends of the inner sleeve are increased to form a flange, the outer sleeve is sleeved on the outer axial surface of the inner sleeve, and the two ends of the outer sleeve are respectively abutted with end surfaces which are oppositely arranged on the flange;
a first water channel and a second water channel are axially arranged inside the outer sleeve, the first water channel is close to the inner side wall of the outer sleeve, and the second water channel is close to the outer side wall of the outer sleeve; the flange is provided with a first water outlet, a second water outlet and a third water outlet, and the first water outlet and the third water outlet are correspondingly arranged with the first water channel; the second water outlet is arranged corresponding to the second water channel and is positioned on the same shaft diameter as the first water outlet on the end face of the flange;
the side of the flange, which is away from the outer sleeve, is also provided with a guide plate, and the guide plate is fixed on the end surface of the flange, is positioned between the first water outlet and the second water outlet, and is obliquely arranged towards one side of the second water outlet;
a plurality of groups of turbulence assemblies are arranged on the guide plate, and the turbulence assemblies are arranged in one-to-one correspondence with the second water outlets;
the vortex subassembly includes vortex portion, jackshaft, elastic component, guide pin bushing and sprue bushing, the guide pin bushing is fixed on the lateral wall of guide plate, the vortex portion cup joints the one end of jackshaft is located on the inside wall of guide plate, the jackshaft other end passes the guide plate with the guide pin bushing, with sprue bushing fixed connection, the elastic component cup joints on the jackshaft, restrict in the guide pin bushing, and both ends respectively with the sprue bushing with the lateral wall butt of guide plate.
2. The cooling and traction device for the horizontal continuous casting copper pipe according to claim 1, wherein a first switching groove and a second switching groove are formed in the end portion of the outer sleeve, a third switching groove is formed in one side, facing the outer sleeve, of the flange, and a first electromagnet, a second electromagnet and a third electromagnet are respectively arranged in the first switching groove, the second switching groove and the third switching groove;
when the third electromagnet is adsorbed to the first electromagnet, only the third water outlet is communicated with the first water channel; when the third electromagnet is adsorbed by the second electromagnet, the first water outlet is communicated with the first water channel, and the second water outlet is communicated with the second water channel.
3. The cooling and pulling apparatus for horizontal continuous casting copper pipe according to claim 1, wherein the deflector has a toroidal bell mouth shape, and the smaller diameter end is fixedly connected to the flange end face.
4. The cooling traction device of the horizontal continuous casting copper pipe according to claim 1, wherein the turbulence part comprises a sleeve and a plurality of turbulence plates, the sleeve is sleeved on the intermediate shaft, at least 3 turbulence plates are fixedly connected with the outer shaft surface of the sleeve, and the turbulence plates are uniformly arranged around the sleeve as a center; the disturbance plate is twisted from one end of the sleeve to the other end.
5. The cooling and pulling device for the horizontally continuous casting copper pipe according to claim 1, wherein the middle part of the inner sleeve is provided with a guide hole in a penetrating manner along the axial direction, and the diameter of the guide hole is larger than the outer diameter of the copper pipe blank.
6. The cooling and traction device for the horizontal continuous casting copper pipe according to claim 5, wherein a water inlet is arranged on the outer sleeve, the water inlet is communicated with the first water channel and the second water channel, a plurality of through holes are arranged on the inner wall of the inner sleeve, and the through holes are communicated with the first water channel.
7. The cooling and pulling device for the horizontal continuous casting copper pipe according to claim 1, wherein the machine base is further provided with a transverse moving assembly and a longitudinal moving assembly;
the transverse moving assembly comprises a moving vehicle and a track, wherein rollers are arranged at the bottom of the moving vehicle, the cooling assembly and the liquid collecting tank are fixed at the top of the moving vehicle, the track is arranged along the axial direction of the copper pipe blank, and the rollers roll along the track;
the longitudinal movement assembly comprises a transverse frame, sliding rails, sliding blocks, a motor and a mounting plate, wherein the transverse frame spans the liquid collecting groove, two ends of the transverse frame are fixed on the moving vehicle at two sides of the liquid collecting groove, the sliding rails are arranged along the length direction of the transverse frame, the sliding blocks are matched with the sliding rails, the mounting plate is fixed on one side of the sliding blocks, which is away from the sliding rails, the cooling assembly is arranged on the mounting plate, and the motor is located at one end of the sliding rails and used for driving the sliding blocks to slide along the sliding rails.
8. The cooling and pulling device for the horizontal continuous casting copper pipe according to claim 7, wherein a pair of clamping blocks are further arranged on one side, away from the sliding block, of the mounting plate, the clamping blocks are respectively positioned on two sides of the cooling assembly, and an arc shape corresponding to the outer side wall of the outer sleeve is formed on one side which is arranged oppositely.
9. A cooling and drawing method for a horizontal continuous casting copper pipe, using the cooling and drawing device for a horizontal continuous casting copper pipe according to any one of claims 1 to 8, characterized by comprising the steps of:
drawing the extruded copper pipe blank onto a stand and passing through a cooling assembly;
cooling water is introduced into the first water channel and the second water channel, and different cooling states are switched according to the current traction rate;
when the traction rate is low, the third water outlet is communicated with the first water channel, and after the cooling water of the first water channel passes through the third water outlet, one part of the cooling water directly contacts with the copper pipe blank to form a cooling effect, and the other part of the cooling water firstly contacts with the inner side wall of the guide plate to be collected and then contacts with the copper pipe blank to form a cooling effect;
when the traction rate is higher, the first water outlet is communicated with the first water channel, the second water outlet is communicated with the second water channel, after the cooling water of the first water channel passes through the first water outlet, one part of the cooling water directly contacts with the copper pipe blank to form a cooling effect, and the other part of the cooling water firstly contacts with the inner side wall of the guide plate to be collected and then contacts with the copper pipe blank to form a cooling effect; after cooling water in the second water channel passes through the second water outlet, one part of the cooling water is directly contacted with the copper pipe blank to form a cooling effect, and the other part of the cooling water is firstly contacted with the outer side wall of the guide plate to be dispersed and then contacted with the copper pipe blank to form a cooling effect;
cooling water discharged through the first water outlet, the second water outlet and the third water outlet is converged into the liquid collecting tank and enters the first water channel and the second water channel again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310933324.XA CN116921640B (en) | 2023-07-26 | 2023-07-26 | Cooling traction device and method for horizontal continuous casting copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310933324.XA CN116921640B (en) | 2023-07-26 | 2023-07-26 | Cooling traction device and method for horizontal continuous casting copper pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116921640A CN116921640A (en) | 2023-10-24 |
| CN116921640B true CN116921640B (en) | 2024-01-23 |
Family
ID=88389514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310933324.XA Active CN116921640B (en) | 2023-07-26 | 2023-07-26 | Cooling traction device and method for horizontal continuous casting copper pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116921640B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237856A (en) * | 1999-02-19 | 2000-09-05 | Sanbo Copper Alloy Co Ltd | Cooling device for continuous caster |
| CN100999013A (en) * | 2006-01-10 | 2007-07-18 | 李铁铎 | Vertical continuous casting machine for seamless steel pipe blank |
| CN201979055U (en) * | 2011-03-30 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous ingot casting crystallizer |
| CN201979056U (en) * | 2011-04-02 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous bright ingot casting device |
| CN203541466U (en) * | 2013-09-30 | 2014-04-16 | 西安麦特沃金液控技术有限公司 | Crystallizer cooling device of vertical semi-continuous casting machine |
| CN205763716U (en) * | 2016-07-01 | 2016-12-07 | 佛山市南海汇丰铜业制品有限公司 | A kind of for the flat chiller drawing casting yellow copper alloy |
| CN108421834A (en) * | 2018-03-20 | 2018-08-21 | 燕山大学 | A kind of cooling device of the hollow round copper pipe of planetary rolling |
| CN207806552U (en) * | 2017-12-26 | 2018-09-04 | 重庆西南铝机电设备工程有限公司 | A kind of cooling water adjustable crystallizer |
| CN211438023U (en) * | 2019-12-21 | 2020-09-08 | 海亮奥托铜管（广东）有限公司 | Secondary cooler of continuous casting crystallizer and crystallizer thereof |
| CN212884913U (en) * | 2020-07-16 | 2021-04-06 | 常州市九鑫铜业有限公司 | Crystallizer copper pipe with efficient cooling |
| CN216420655U (en) * | 2021-11-30 | 2022-05-03 | 海亮奥托铜管（广东）有限公司 | Pipe cooler of planetary rolling mill |
-
2023
- 2023-07-26 CN CN202310933324.XA patent/CN116921640B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000237856A (en) * | 1999-02-19 | 2000-09-05 | Sanbo Copper Alloy Co Ltd | Cooling device for continuous caster |
| CN100999013A (en) * | 2006-01-10 | 2007-07-18 | 李铁铎 | Vertical continuous casting machine for seamless steel pipe blank |
| CN201979055U (en) * | 2011-03-30 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous ingot casting crystallizer |
| CN201979056U (en) * | 2011-04-02 | 2011-09-21 | 金川集团有限公司 | Horizontal continuous bright ingot casting device |
| CN203541466U (en) * | 2013-09-30 | 2014-04-16 | 西安麦特沃金液控技术有限公司 | Crystallizer cooling device of vertical semi-continuous casting machine |
| CN205763716U (en) * | 2016-07-01 | 2016-12-07 | 佛山市南海汇丰铜业制品有限公司 | A kind of for the flat chiller drawing casting yellow copper alloy |
| CN207806552U (en) * | 2017-12-26 | 2018-09-04 | 重庆西南铝机电设备工程有限公司 | A kind of cooling water adjustable crystallizer |
| CN108421834A (en) * | 2018-03-20 | 2018-08-21 | 燕山大学 | A kind of cooling device of the hollow round copper pipe of planetary rolling |
| CN211438023U (en) * | 2019-12-21 | 2020-09-08 | 海亮奥托铜管（广东）有限公司 | Secondary cooler of continuous casting crystallizer and crystallizer thereof |
| CN212884913U (en) * | 2020-07-16 | 2021-04-06 | 常州市九鑫铜业有限公司 | Crystallizer copper pipe with efficient cooling |
| CN216420655U (en) * | 2021-11-30 | 2022-05-03 | 海亮奥托铜管（广东）有限公司 | Pipe cooler of planetary rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116921640A (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1244423C (en) | Belt-cooling and guiding means for continuous belt casting of metal strip | |
| CN201423388Y (en) | Laminar flow cooling down-spraying device | |
| KR101158327B1 (en) | Cooling device for cooling a metal strip | |
| US20190390316A1 (en) | Metal material cooling apparatus | |
| EP2571642B1 (en) | Roller device | |
| CN116921640B (en) | Cooling traction device and method for horizontal continuous casting copper pipe | |
| CN101837376A (en) | Plunger-type upper spraying laminar flow cooling device | |
| EP1761349A2 (en) | Continuous casting plant and method for optionally casting a large metal billet or a maximum of two narrower metal billets | |
| CN101837377B (en) | Laminar flow cooling upper spray blocking device | |
| CN105268750A (en) | Head and tail rapid shielding device, system and method for moderate-thickness plate cooling system | |
| CN100404150C (en) | Stainless compound steel plate belt blank spray casting, tandem rolling apparatus and production method thereof | |
| KR100237499B1 (en) | Strip casting | |
| CN102189134B (en) | Spiral guide drainage device in cooling after rolling process of ultra-wide ultra-thick hot-rolled plate coil | |
| CN102189131B (en) | Lower spraying laminar flow cooling device | |
| CN1871117B (en) | Method for the production of a thermoplastic plate comprising at least one smooth edge, device therefor, and edge machining system | |
| JPH03142043A (en) | Mold for continuous casting equipment | |
| KR100711413B1 (en) | Apparatus for removing oil from the surface of strip | |
| CN109297347B (en) | Spray system for evaporative condenser | |
| CN218811903U (en) | Online guenching unit | |
| CN212504985U (en) | Online portable guenching unit | |
| EP1897636B2 (en) | Continuous casting machine and method | |
| EP1558438B1 (en) | Device for cooling and calibrating plastic profiled pieces | |
| CN203330364U (en) | Crystallizer device for continuously pouring two guide plate slabs | |
| CN210336455U (en) | Liquid-saving type diamond wire saw | |
| CN217297959U (en) | Roller sectional quenching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |