CN103817493B - Hot rolling, roll-in be the preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online - Google Patents
Hot rolling, roll-in be the preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online Download PDFInfo
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- CN103817493B CN103817493B CN201310744891.7A CN201310744891A CN103817493B CN 103817493 B CN103817493 B CN 103817493B CN 201310744891 A CN201310744891 A CN 201310744891A CN 103817493 B CN103817493 B CN 103817493B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
- B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
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Abstract
The present invention relates to a kind of hot rolling, the roll-in preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online, the preparation method of this seamless heterotype pipe is simple and easy to do, required Drawing Force is little, energy-saving and cost-reducing, reduce environmental pollution, can not damage steel pipe, the outward appearance of the steel pipe simultaneously made, appearance and size and comprehensive mechanical property index can be up to standard.Outward appearance, appearance and size and comprehensive mechanical property index are embodied in: outward appearance without pulling, the defects such as road plan; Appearance and size, linearity, flatness, R angle etc. meet standard-required; Mechanical property, impact property, metallographic structure etc. meet standard-required.Simultaneously in equipment, improvement is made to forming machine, and add quickly cooling device and send steel to put fast, the need of production of hot rolling, roll-in shaping seamless heterotype pipe online can be met.
Description
Technical field
The present invention relates to the preparation method of a kind of hot rolling, roll-in shaping seamless heterotype pipe online, and its special manufacturing equipment, it utilizes, and the remaining temperature of hot finished steel pipe is online to be shaped, and belongs to metallic article technical field.
Background technology
In recent years, although steel market entirety allows of no optimist, seamless steel pipe demand is still vigorous, and growth momentum is powerful, and special seamless heterotype steel pipe is more and more subject to the favor of client.Because special-shaped seamless steel pipe has following advantage compared with round seamless steel pipe: when sectional area is identical, the cross sectional moment of inertia of shape tube is greater than pipe; When wall thickness is thinner, the cross sectional moment of inertia of beam is larger, has larger bending stiffness than pipe; Shape tube has better assembling, and welding point is reliable; At bearing condition lower different type pipe, there is better stability, and appearance looks elegant.
At present, seamless heterotype steel pipe adopts cold-drawing technology to process mostly, but cold-drawn processing technology is comparatively complicated, need the operation such as head processed, annealing, pickling, cold-drawn, aligning, and cold-drawn is sliding friction, and required Drawing Force is larger, easily pull the surfaces externally and internally of steel pipe, simultaneously not only energy consumption is high for cold-drawn manufacture method, and recovery rate of iron is low, and acid washing phosphorization etc. also can bring environmental pollution.Therefore, in the urgent need to innovating traditional handicraft reform, thus low energy consumption is developed, the seamless heterotype steel pipe processing method little to environmental hazard.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, there is provided a kind of simple and easy to do, required Drawing Force is little, energy-saving and cost-reducing, reduce environmental pollution, can not steel pipe be damaged, ensure the hot rolling of outward appearance, appearance and size and comprehensive mechanical property index, the roll-in preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online simultaneously.
The object of the present invention is achieved like this:
The preparation method of hot rolling of the present invention, roll-in shaping seamless heterotype pipe online, the processing step of this seamless heterotype tube preparation method is as follows:
Step one, fracture
Material circular pipe blank is cut into appropriate length, fracture;
Step 2, heating
The circular pipe blank completing fracture is put into annular furnace heat;
Step 3, hot rolling
By being heated to the circular pipe blank perforated of set point of temperature, oblique milling, sizing operation be rolled into pipe;
Step 4, controlled cooling model
By the finished product pipe after hot rolling, the quickly cooling device on rear side of hot rolling reducing mill stand improves the harmful structure that hot rolling produces;
Step 5, haul
Steel pipe is delivered on forming machine fast, to meet the needs of forming temperature by the steel device that send fast above cold bed;
Step 6, remaining warm working
The steel pipe of remaining temperature is rolled into seamless heterotype steel pipe through the shaping unit debugged, through machine shaping unit afterbody adjustment coalignment adjustment linearity.Finished product special-shaped seamless steel tube stacking rolling terminated, air cooling are to room temperature;
Step 7, shearing
To the Tube Shearing of room temperature be chilled to end to end;
Step 8, performance test
These two fished pipes respectively get one section and makees sample, do measuring mechanical property;
Step 9, appearance test
Check any surface finish, without defects such as pit pits, appearance and size tolerance, linearity, flatness etc. meet standard-required;
Step 10, packaging warehouse-in
By the fished pipe be up to the standards, pack, list, put in storage.
A kind of hot rolling, the quickly cooling device of roll-in shaping seamless heterotype pipe online, this quickly cooling device comprises cooling racks, the both sides, front and back of described cooling racks are provided with haul roller group, the haul roller that this haul roller group is arranged by multiple front-back staggered forms, described cooling racks is also provided with the haul bar of multiple horizontal positioned, wherein each haul bar is all located between adjacent two haul rollers, and one end and the cooling racks of haul bar are hinged, one end that haul bar is not connected with cooling racks can be moved and be transported seamless heterotype pipe, top between described haul roller group is provided with a rotating shaft, one end of described rotating shaft and the output shaft of driving motor fix, and the bottom of this driving motor is fixed in cooling racks by underframe, the outer cover of described rotating shaft has shower, cooling racks is also provided with infrared radiation thermometer simultaneously, described infrared radiation thermometer is connected with PLC, described PLC is connected with haul bar.
A kind of hot rolling, roll-in online shaping seamless heterotype pipe send steel device fast, this send steel device to comprise fast and send steel frame, this send steel frame to be located between hot-rolling mill frame and forming machine, the described both sides, front and back of steel frame top of sending are provided with track, described track is respectively equipped with a material conveying trolley, be provided with pulley bottom described material conveying trolley to coordinate with track, haul frame is fixed with between described two material conveying trolleys, the bottom of described haul frame is hinged with multiple suspension hook from front to back, the rear side of steel frame is sent to be provided with unloading rack, described unloading rack is obliquely installed, and its front end is polylith swash plate, the rear side of unloading rack is pressed close to mutually with the front side of forming machine.
A forming machine for hot rolling, roll-in shaping seamless heterotype pipe online, this forming machine comprises forming machine frame, and described forming machine frame is provided with row's forming rolls group, and this forming rolls group is made up of multiple forming rolls assembly;
The front side of described forming rolls group is provided with feeding roll stand, and the rear side of described forming rolls group is provided with motor, and described motor is connected with reductor by shaft coupling, and the output of described reductor is connected with the power transmission shaft above forming machine frame;
The below of forming machine frame is provided with the cooling water pipe that front and back are arranged simultaneously, and described cooling water pipe is connected to multiple flexible pipe, and every root flexible pipe is all located at the bearing side of power transmission shaft, the delivery port alignment bearings of flexible pipe.
The rear side of described forming machine frame is also equipped with adjusting head.
Forming rolls in described forming rolls group adopts refractory steel H13.
Compared with prior art, the preparation method of this seamless heterotype pipe is simple and easy to do, and required Drawing Force is little, energy-saving and cost-reducing, reduces environmental pollution, can not damage steel pipe, and the outward appearance of the steel pipe simultaneously made, appearance and size and comprehensive mechanical property index can be up to standard.Outward appearance, appearance and size and comprehensive mechanical property index are embodied in: outward appearance without pulling, the defects such as road plan; Appearance and size, linearity, flatness, R angle etc. meet standard-required; Mechanical property, impact property, metallographic structure etc. meet standard-required.
The preparation method of this seamless heterotype pipe is compared with technology in the past simultaneously, also has the following advantages:
1, be shaped online, process route is short, with short production cycle.
2, without manufacture craft head, metal waste (recovery rate of iron comparatively cold-drawn on average improves 5%) is reduced.
3, without pickling, reduce environmental pollution, reduce manufacturing cost.
4, while being shaped, adjustment linearity, decreases aligning operation.
5, utilize the remaining temperature after rolling to carry out band warm working, avoid intercrystalline crack, be conducive to the corner crack tendency reduced when shape tube is shaped, remaining temperature self tempering, reduces finished product annealing operation, cost-saving.
6, add quickly cooling device, improve hot rolling harmful structure, improve mechanical performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of quickly cooling device in the preparation method of hot rolling of the present invention, roll-in shaping seamless heterotype pipe online.
Fig. 2 is the structural representation sending steel to put fast in the preparation method of hot rolling of the present invention, roll-in shaping seamless heterotype pipe online.
Fig. 3 is the structural representation of forming machine in the preparation method of hot rolling of the present invention, roll-in shaping seamless heterotype pipe online.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the bearing of power transmission shaft and the fiting relation figure of cooling device in Fig. 4.
Wherein: cooling racks 1, haul roller group 2, haul bar 3, rotating shaft 4, driving motor 5, shower 6, send steel frame 7, track 8, material conveying trolley 9, haul frame 10, suspension hook 11, unloading rack 12, swash plate 13, forming machine frame 14, forming rolls group 15, feeding roll stand 16, motor 17, shaft coupling 18, reductor 19, power transmission shaft 20, cooling water pipe 21, flexible pipe 22.
Detailed description of the invention
The present invention relates to the preparation method of a kind of hot rolling, roll-in shaping seamless heterotype pipe online, the processing step of the method is as follows:
Production instance: material Q345B specification: 140*80*7mm length: more than 6m
Step one, fracture
Be Q345B by material, diameter is that the circular pipe blank of Φ 150 cuts into appropriate length, and fracture 1800-1900mm/ props up.
Step 2, heating
The circular pipe blank completing fracture is put into annular furnace and is heated to 1220-1250 DEG C.
Step 3, hot rolling
By the pipe being heated to the circular pipe blank perforated of set point of temperature, oblique milling, sizing operation are rolled into 140*7mm.(external diameter Φ=(140+80) * 2/3.14 ≈ 140mm)
Step 4, controlled cooling model
By the finished product pipe (temperature is usually more than 800 DEG C) after hot rolling, the quickly cooling device on rear side of hot rolling reducing mill stand improves the harmful structure that hot rolling produces, and temperature controlled within the scope of 450-600 DEG C, temperature is preferably 500-550 DEG C.
Step 5, haul
Steel pipe is delivered on forming machine fast, to meet the needs of forming temperature by the steel device that send fast above cold bed.
Step 6, remaining warm working
Remaining temperature is rolled into the seamless heterotype steel pipe of 140*80*7mm specification at the steel pipe of 500-550 DEG C through the shaping unit debug, adjusts linearity through machine shaping unit afterbody adjustment coalignment.Finished product special-shaped seamless steel tube stacking rolling terminated, air cooling are to room temperature.
Step 7, shearing
To the Tube Shearing of room temperature be chilled to end to end, steel pipe more than length requirement 6m after shearing.
Step 8, performance test
What these two fished pipes were respectively got one section of 250-300mm length makees sample, and do measuring mechanical property, mechanical performance index is as following table:
。
Step 9, appearance test
Check any surface finish, without defects such as pit pits, appearance and size tolerance, linearity, flatness etc. meet standard-required.
Step 10, packaging warehouse-in
By the fished pipe be up to the standards, pack, list, put in storage.
The preparation method of simultaneously this hot rolling, roll-in shaping seamless heterotype pipe has online made improvement to production equipment, specific as follows:
This hot rolling, in the controlled cooling model step of the roll-in preparation method of shaping seamless heterotype pipe online, quickly cooling device is provided with on rear side of hot rolling reducing mill stand, see Fig. 1, this quickly cooling device comprises cooling racks 1, the both sides, front and back of described cooling racks 1 are provided with haul roller group 2, the haul roller that this haul roller group 2 is arranged by multiple front-back staggered forms, described cooling racks 1 is also provided with the haul bar 3 of multiple horizontal positioned, wherein each haul bar 3 is all located between adjacent two haul rollers, and one end of haul bar 3 and cooling racks 1 hinged, the seamless heterotype pipe be carried through above it can be moved in one end that haul bar 3 is not connected with cooling racks 1, top between described haul roller group 2 is provided with a rotating shaft 4, one end of described rotating shaft 4 and the output shaft of driving motor 5 fix, and the bottom of this driving motor 5 is fixed in cooling racks 1 by underframe, the outer cover of described rotating shaft 4 has shower 6, described shower 6 carries out On-line accelerated cooling for passing into cooling water to seamless heterotype pipe.
Cooling racks 1 is also provided with infrared radiation thermometer simultaneously, described infrared radiation thermometer is connected with PLC, for the temperature of the seamless heterotype recorded pipe is passed to PLC, described PLC controls the translational speed of haul bar 3, thus control the transporting velocity of seamless heterotype pipe on quickly cooling device, and then ensure that the temperature of seamless heterotype pipe can reach prescribed limit when it transports quickly cooling device.
This hot rolling, in the haul step of the roll-in preparation method of shaping seamless heterotype pipe online, be provided with above cold bed and send steel device fast, participate in Fig. 2, it comprises send steel frame 7, this send steel frame 7 to be located between hot rolling frame and forming machine, the described both sides, front and back at steel frame 7 top of sending are provided with track 8, described track 8 is respectively equipped with a material conveying trolley 9, be provided with pulley bottom described material conveying trolley 9 to coordinate with track 8, haul frame 10 is fixed with between described two material conveying trolleys 9, the bottom of described haul frame 10 is hinged with multiple suspension hook 11 from front to back, the rear side of steel frame 7 is sent to be provided with unloading rack 12, described unloading rack 12 is obliquely installed, and its front end is polylith swash plate 13, the rear side of unloading rack 12 is pressed close to mutually with the front side of forming machine.
This hot rolling, roll-in online shaping seamless heterotype pipe send fast steel device by control material conveying trolley 9, movable, thus use suspension hook 11 to be sling by seamless heterotype pipe out on rear side of hot rolling frame, transport to swash plate 13 rear hanger 11 seamless heterotype pipe is put down, seamless heterotype pipe enters the rear side of unloading rack 12, can carry out subsequent technique subsequently with the conveying roller on front side of forming machine by seamless heterotype pipe feeding forming machine at once.So just, ensure that seamless heterotype pipe is to entering during Optimal Temperature in forming machine, after such forming machine is shaped to seamless heterotype pipe, the temperature of seamless heterotype pipe can play the effect of self tempering.
This hot rolling, in the remaining warm working step of the roll-in preparation method of shaping seamless heterotype pipe online, the forming machine adopted has carried out structure of modification, concrete participation Fig. 3 to Fig. 5, this forming machine comprises forming machine frame 14, described forming machine frame 14 is provided with row's forming rolls group 15, this forming rolls group 15 is made up of multiple forming rolls assembly, forming rolls in described forming rolls group 15 adopts refractory steel H13(4Cr5MoSiV1), it has very high calorific intensity, there is good toughness under mesophilic condition, thermal fatigue property and certain wearability, make it not by the impact of high temperature seamless heterotype pipe.
The front side of described forming rolls group 15 is provided with feeding roll stand 16, described feeding roll stand 16 is for being transported to forming rolls by seamless heterotype pipe, the rear side of described forming rolls group 15 is provided with motor 17, described motor 17 is connected with reductor 19 by shaft coupling 18, the output of described reductor 19 is connected with the power transmission shaft 20 above forming machine frame 14, the bearing of described power transmission shaft 20 adopts high temperature resistant bearing, ensures that the seamless heterotype pipe of high temperature can not have an impact to it.
The below of forming machine frame 14 is provided with the cooling water pipe 21 that front and back are arranged simultaneously, described cooling water pipe 21 is connected to multiple flexible pipe 22, and every root flexible pipe 22 is all located at the bearing side of power transmission shaft 20, the delivery port alignment bearings of flexible pipe 22 can be lowered the temperature to it, prevent the seamless heterotype pipe range time from causing drive failures by after heat transmission, thus ensure that production is unaffected.
The rear side of described forming machine frame 14 is also equipped with adjusting head, and this adjusting head can solve the body twisted phenomena that seamless heterotype pipe produces in forming process.
Claims (6)
1. a preparation method for hot rolling, roll-in shaping seamless heterotype pipe online, is characterized in that: the processing step of this seamless heterotype tube preparation method is as follows:
Step one, fracture
Material circular pipe blank is cut into appropriate length, fracture;
Step 2, heating
The circular pipe blank completing fracture is put into annular furnace heat;
Step 3, hot rolling
By being heated to the circular pipe blank perforated of set point of temperature, oblique milling, sizing operation be rolled into pipe;
Step 4, controlled cooling model
By the finished product pipe after hot rolling, the quickly cooling device on rear side of hot rolling reducing mill stand improves the harmful structure that hot rolling produces;
Step 5, haul
Steel pipe is delivered on forming machine fast, to meet the needs of forming temperature by the steel device that send fast above cold bed;
Step 6, remaining warm working
The steel pipe of remaining temperature is rolled into seamless heterotype steel pipe through the shaping unit debugged, and through machine shaping unit afterbody adjustment coalignment adjustment linearity, finished product special-shaped seamless steel tube stacking rolling terminated, air cooling are to room temperature;
Step 7, shearing
To the Tube Shearing of room temperature be chilled to end to end;
Step 8, performance test
Two fished pipes respectively get one section and makees sample, do measuring mechanical property;
Step 9, appearance test
Check any surface finish, without pit pit defect, appearance and size tolerance, linearity, flatness meet standard-required;
Step 10, packaging warehouse-in
By the fished pipe be up to the standards, pack, list, put in storage.
2. a kind of hot rolling as claimed in claim 1, the preparation method of roll-in shaping seamless heterotype pipe online, it is characterized in that: the quickly cooling device used in step 4 comprises cooling racks (1), the both sides, front and back of described cooling racks (1) are provided with haul roller group (2), the haul roller that this haul roller group (2) is arranged by multiple front-back staggered forms, described cooling racks (1) is also provided with the haul bar (3) of multiple horizontal positioned, wherein each haul bar (3) is all located between adjacent two haul rollers, and one end of haul bar (3) and cooling racks (1) hinged, one end that haul bar (3) is not connected with cooling racks (1) can be moved and be transported seamless heterotype pipe, top between described haul roller group (2) is provided with a rotating shaft (4), one end of described rotating shaft (4) and the output shaft of driving motor (5) fix, and the bottom of this driving motor (5) is fixed in cooling racks (1) by underframe, the outer cover of described rotating shaft (4) has shower (6), cooling racks (1) is also provided with infrared radiation thermometer simultaneously, described infrared radiation thermometer is connected with PLC, described PLC is connected with haul bar (3).
3. a kind of hot rolling as claimed in claim 1, the preparation method of roll-in shaping seamless heterotype pipe online, it is characterized in that: what use in step 5 send steel device to comprise to send steel frame (7) fast, this send steel frame (7) to be located between hot rolling frame and forming machine, the described both sides, front and back at steel frame (7) top of sending are provided with track (8), described track (8) is respectively equipped with a material conveying trolley (9), described material conveying trolley (9) bottom is provided with pulley and coordinates with track (8), haul frame (10) is fixed with between described two material conveying trolleys (9), the bottom of described haul frame (10) is hinged with multiple suspension hook (11) from front to back, the rear side of steel frame (7) is sent to be provided with unloading rack (12), described unloading rack (12) is obliquely installed, and its front end is polylith swash plate (13), the rear side of unloading rack (12) is pressed close to mutually with the front side of forming machine.
4. the preparation method of a kind of hot rolling as claimed in claim 1, roll-in shaping seamless heterotype pipe online, it is characterized in that: the forming machine used in step 5 comprises forming machine frame (14), described forming machine frame (14) is provided with row's forming rolls group (15), and this forming rolls group (15) is made up of multiple forming rolls assembly;
The front side of described forming rolls group (15) is provided with feeding roll stand (16), the rear side of described forming rolls group (15) is provided with motor (17), described motor (17) is connected with reductor (19) by shaft coupling (18), and the output of described reductor (19) is connected with the power transmission shaft (20) of forming machine frame (14) top;
The below of forming machine frame (14) is provided with the cooling water pipe (21) that front and back are arranged simultaneously, described cooling water pipe (21) is connected to multiple flexible pipe (22), and every root flexible pipe (22) is all located at the bearing side of power transmission shaft (20), the delivery port alignment bearings of flexible pipe (22).
5. the preparation method of a kind of hot rolling according to claim 4, roll-in shaping seamless heterotype pipe online, is characterized in that: the rear side of described forming machine frame (14) is also equipped with adjusting head.
6. the preparation method of a kind of hot rolling according to claim 4 or 5, roll-in shaping seamless heterotype pipe online, is characterized in that: the forming rolls in described forming rolls group (15) adopts refractory steel H13.
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| CN201310744891.7A CN103817493B (en) | 2013-12-30 | 2013-12-30 | Hot rolling, roll-in be the preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online |
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| CN201310744891.7A CN103817493B (en) | 2013-12-30 | 2013-12-30 | Hot rolling, roll-in be the preparation method of shaping seamless heterotype pipe and manufacturing equipment thereof online |
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| CN112475809A (en) * | 2020-11-24 | 2021-03-12 | 嵊州市恒嘉机械有限公司 | Preparation process of drafting shaft |
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| CN101537443A (en) * | 2009-05-06 | 2009-09-23 | 北京首钢国际工程技术有限公司 | Deep processing treatment system for hot rolling strip steel |
| CN201735601U (en) * | 2010-08-04 | 2011-02-09 | 中冶东方工程技术有限公司 | Hot rolling aluminium sheet cooling and conveying device |
| CN203699233U (en) * | 2013-12-30 | 2014-07-09 | 江苏界达特异新材料股份有限公司 | Rapid conveying device for seamless special pipes formed by on-line hot rolling and rolling on line |
| CN203695644U (en) * | 2013-12-30 | 2014-07-09 | 江苏界达特异新材料股份有限公司 | Forming machine for hot rolling and rolling online forming of seamless special pipe |
| CN203695631U (en) * | 2013-12-30 | 2014-07-09 | 江苏界达特异新材料股份有限公司 | Rapid cooling device for seamless special pipes formed by on-line hot rolling and rolling |
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Denomination of invention: Preparation method and manufacturing equipment of on-line forming seamless pipe by hot rolling and rolling Effective date of registration: 20200821 Granted publication date: 20160427 Pledgee: Jiangyin sub branch of Wuxi Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU JIEDA SPECIFIC NEW MATERIAL Co.,Ltd. Registration number: Y2020990001014 |
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Denomination of invention: Preparation method and manufacturing equipment for hot rolling and rolling online forming of seamless shaped pipes Effective date of registration: 20230807 Granted publication date: 20160427 Pledgee: Jiangyin sub branch of Wuxi Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU JIEDA SPECIFIC NEW MATERIAL Co.,Ltd. Registration number: Y2023980051030 |
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