CN101709445A - Method for continuously and thermally galvanizing pipe - Google Patents
Method for continuously and thermally galvanizing pipe Download PDFInfo
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- CN101709445A CN101709445A CN200910242316A CN200910242316A CN101709445A CN 101709445 A CN101709445 A CN 101709445A CN 200910242316 A CN200910242316 A CN 200910242316A CN 200910242316 A CN200910242316 A CN 200910242316A CN 101709445 A CN101709445 A CN 101709445A
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Abstract
The invention provides a method for continuously and thermally galvanizing a pipe. In the method, the whole process is completed continuously on line, a hot-rolled steel plate is used as a raw material plate, the whole processing process of the steel strip from unrolling to welding a steel pipe, to galvanizing and to shearing is completed on line, and the fully continuous and automatic production of the thermally galvanized pipe integrates unrolling, leveling, rolling, welding, cleaning, blowing with cold wind, specified length shearing and stacking. The method comprises the following steps: delivering the hot-rolled steel strip to a welding stage; delivering the welded continuous steel strip to a disk loop material storing and leveling stage; delivering the welded continuous steel strip to a rolling stage to longitudinally weld a steel pipe; delivering the steel pipe formed by rolling and welding to a zinc bath 12, and controlling the thickness of a zinc layer by using an annular air blade 13; delivering the galvanized steel pipe to a shearing and stacking stage and delivering the galvanized steel pipe to a specified length follow-up shears 16 to shear the steel pipe by required length; and stacking the steel pipes according to a required height with two stacking machines of which one is spared for later use. Production efficiency is improved and cost and expenses are saved.
Description
Technical field
The invention belongs to and be coated with zinc-plated field in the metallurgy industry, relate in particular to the production field of pot galvanize.
Background technology
The employing that the production of domestic original galvanized pipe now has is electroplated, and the employing galvanized sheet that has is welded, and adopts the method galvanized pipe of electro-galvanizing, thickness of coating is difficult to control, and coating is thinner, and production rate is slow, the cost height, and pot galvanize adopts cage to soak zinc-plate process mostly, and steel pipe is cut into the length that needs, and is placed on to immerse the zinc pot in the cage, galvanizing in this way, the zinc layer that is plated is the two sides, and practical application just outer surface of steel tube need zinc-platedly, the double side zinc coating waste is serious; Technology with the galvanized sheet welding is roll-forming on heat zinc coating plate in addition, is welded, and postwelding is mended zinc coating then in the commissure after the reconditioning of steel pipe seam place.Zinc-plated on steel pipe, low with these several mode production efficiencys, can not continuous production, complex procedures, labour intensity is big.
Summary of the invention
Low in order to overcome domestic original galvanized pipe production efficiency, the production cost height, can not continuous production, labour intensity is big, and the present invention adopts the mode of working continuously zinc-plated and shear that all processes is all online to be finished to being welded into steel pipe from uncoiling, and collection uncoiling, leveling, roll-forming, welding, cleaning, cold wind purging, cutting to length, buttress material are one, be used for the full continuous automatic production of hot dip galvanizing pipe, can continuous production, thus production efficiency improved, filled up domestic blank.
The technical scheme that the present invention solves its technical problem is: the method that adopts a kind of continuously and thermally galvanizing pipe, with the hot-rolled steel sheet is raw material plate, it is characterized in that: steel band is handled from uncoiling zinc-plated and shear that all processes is all online to be finished to being welded into steel pipe, collection uncoiling, leveling, roll-forming, welding, cleaning, cold wind purging, cutting to length, buttress material are one, be used for the full continuous automatic production of hot dip galvanizing pipe, may further comprise the steps:
A: hot rolled strip enters the welding stage, with hot rolled strip take the lead, magnetic tape trailer welds together;
B: the steel tape after welding enters the disc type kink storing aligning stage;
C: the steel band behind aligning enters the roll-forming section and vertically is welded into steel pipe then;
D: through the steel pipe that roll-forming is welded into, enter zinc groove (12), through air knife (13) the control zinc coating thickness that goes in ring;
E: the steel pipe after zinc-plated enters to be cut off and the stacking stage, and the steel plate after zinc-plated enters fixed length and cuts (16) subsequently, with steel pipe on request length cut off, highly carry out stacking on request.
The step that also comprises uncoiling in step a: Abrollhaspel (1) expands into steel band with coil of strip, behind first pinch roll (2), enter crop end and cut (3), weld through the afterbody of welding machine (5) with last coil of strip, the steel taping head magnetic tape trailer is welded together, steel tape enters disc type kink (5) when when welding vertical loop (6) blowing then, satisfies the requirement of back operation and realizes continuous production.
There have zinc pump and belt nozzle to be used for the jet flow of steel pipe in the zinc groove of steps d to be zinc-plated.
Fixed length at step e is cut (16) subsequently, has with the mobile component of steel plate working direction and the feeding of cutting direction.
In the stacking stage of step e, two stackers are arranged, the using and the reserved.
The invention has the beneficial effects as follows: this continuous hot galvanizing pipeline production line is zinc-plated and shear that all processes is all online to be finished to being welded into steel pipe from uncoiling, collection uncoiling, leveling, roll-forming, welding, cleaning, cold wind purging, cutting to length, buttress material are one, realize the online full continuous production of whole process of production; Reduced middle-chain, saved manpower, the method with the continuous zinc coating pipe has reduced production cost, has improved production efficiency, has improved the level of automation of producing, and has saved manpower and materials, has improved quality of coating.
Description of drawings
Fig. 1: pipe figure is plated in pot galvanize continuously
Among Fig. 1: 1. Abrollhaspel, 2. crop end cut, 3. first pinch roll, 4. the steel plate welding machine, 5. pinch roll, 6. the disc type kink, 7. second pinch roll, 8. equipment for straightening, 9. roller pressing forming machine, 10. Straight seam welding machine, 11. pre-warm wash, 12. zinc grooves, 13. go in ring air knives, 14, cold wind purge, 15, steel pipe pinches, 16. fixed length are cut subsequently, 17. pairs of stackings
Embodiment
Entrance: earlier coil of strip is placed on the Abrollhaspel 1 with the coil of strip car, wrench is cut 2 with crop end and is cut wrench, flatten by steel plate welding machine 4 through first pinch roll 3, cutting 2 with last coil of strip through crop end, to cut the steel plate afterbody of irregular magnetic tape trailer welded together, change the locality of steel band by pinch roll 5, make steel band become vertical direction and enter disc type kink 6 by horizontal direction, steel band enters disc type kink 6, during normal uncoiling, disc type kink 6 storings, when change of lap welds, disc type kink 6 blowings satisfy the requirement of unit quantity-produced; Process section: steel band comes out to turn to through second pinch roll 7 from disc type kink 6, make steel band become horizontal direction by vertical direction, through equipment for straightening 8, steel band is carried out straightening processing, eliminate the defective of steel strip surface, help next step soldering of steel band, enter roll-forming machine equipment 9, behind roll-forming, be rolled into steel pipe, be welded into steel pipe through Straight seam welding machine 10, the steel pipe seam place of postwelding is polished flat with sander, enter pre-warm wash 11, with cleaning through the tank liquor after the preheating, wash the iron scale of steel tube surface, steel band enters rinse stage then, washes the remaining tank liquor of steel tube surface off, then steel pipe enters the oven dry section, and hot-air seasoning is removed the moisture of steel tube surface.Steel pipe behind hot-air seasoning is through pinching, enter zinc groove 12, the zinc pump is arranged in the zinc groove 12, zinc liquid sprays to steel tube surface to zinc liquid through the zinc pump by the nozzle that goes in ring, unnecessary zinc liquid flows back in the zinc groove 12, zinc pipe after the spraying is through the air knife 13 that goes in ring, blow unnecessary zinc liquid off, thus the thickness and the uniformity coefficient of the air knife air output of gate ring promoting the circulation of qi cutter 13 control zinc coating, the quality of control zinc coating.The key of decision steel pipe finished product.
Steel pipe after zinc-plated purges 14 postcooling through behind the annular air knife through cold wind, pinching 15 through cooled steel pipe through steel pipe enters fixed length and cuts 16 subsequently, fixed length is cut 16 subsequently and is followed the steel plate walking, the length that requires according to required steel pipe customizes, shear steel pipe, the steel pipe scale is become fixed length, to reach the production needs, steel pipe after the fixed length enters two stackings 17, this equipment is used for carrying the finished product to length steel pipe, and shared two, the using and the reserved, when a stacking apparatus reaches the stacking height discharging of regulation, by handling equipment fished pipe is delivered to another stacking apparatus, continue stacking, satisfy unit quantity-produced needs, save the production time, improved production cost.
Claims (5)
1. the method for a continuously and thermally galvanizing pipe, with the hot-rolled steel sheet is raw material plate, it is characterized in that: steel band is handled from uncoiling zinc-plated and shear that all processes is all online to be finished to being welded into steel pipe, collection uncoiling, leveling, roll-forming, welding, cleaning, cold wind purging, cutting to length, buttress material are one, be used for the full continuous automatic production of hot dip galvanizing pipe, may further comprise the steps:
A: hot rolled strip enters the welding stage, with hot rolled strip take the lead, magnetic tape trailer welds together;
B: the steel tape after welding enters the disc type kink storing aligning stage;
C: the steel band behind aligning enters the roll-forming section and vertically is welded into steel pipe then;
D: through the steel pipe that roll-forming is welded into, enter zinc groove (12), through air knife (13) the control zinc coating thickness that goes in ring;
E: the steel pipe after zinc-plated enters to be cut off and the stacking stage, and the steel plate after zinc-plated enters fixed length and cuts (16) subsequently, with steel pipe on request length cut off, highly carry out stacking on request.
2. the method for a kind of continuously and thermally galvanizing pipe as claimed in claim 1, it is characterized in that also comprising in step a the step of uncoiling: Abrollhaspel (1) expands into steel band with coil of strip, behind first pinch roll (2), enter crop end and cut (3), weld through the afterbody of welding machine (5) with last coil of strip, the steel taping head magnetic tape trailer is welded together, steel tape enters disc type kink (5) when when welding vertical loop (6) blowing then, satisfies the requirement of back operation and realizes continuous production.
3. a kind of hot-rolled sheet color coating moulding quantity-produced method as claimed in claim 1 is characterized in that the jet flow that has zinc pump and nozzle to be used for steel pipe is zinc-plated in the zinc groove of steps d.
4. a kind of hot-rolled sheet color coating moulding quantity-produced method as claimed in claim 1 is characterized in that cutting (16) subsequently in the fixed length of step e, has with the mobile component of steel plate working direction and the feeding of cutting direction.
5. a kind of hot-rolled sheet color coating moulding quantity-produced method as claimed in claim 1 is characterized in that the stacking stage at step e, two stackers is arranged, the using and the reserved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242316A CN101709445A (en) | 2009-12-11 | 2009-12-11 | Method for continuously and thermally galvanizing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910242316A CN101709445A (en) | 2009-12-11 | 2009-12-11 | Method for continuously and thermally galvanizing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101709445A true CN101709445A (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910242316A Pending CN101709445A (en) | 2009-12-11 | 2009-12-11 | Method for continuously and thermally galvanizing pipe |
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| CN (1) | CN101709445A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646954A (en) * | 2014-12-15 | 2015-05-27 | 湖南元拓实业集团有限公司 | Online continuous plating process |
| CN105479122A (en) * | 2016-02-17 | 2016-04-13 | 湖南元拓实业集团有限公司 | Online continuous outer hot dip galvanizing and inner plating composite welded pipe production process |
| CN106811711A (en) * | 2017-01-18 | 2017-06-09 | 北京钢研新冶工程设计有限公司 | A kind of continuous hot-dipping galvanizing and dual-purpose production unit and the production technology of UV color coatings |
| CN106939398A (en) * | 2017-05-04 | 2017-07-11 | 西安泰力松新材料股份有限公司 | A kind of wire tin plating technique and its tinning stack |
| CN116060892A (en) * | 2023-03-07 | 2023-05-05 | 杭州金固环保设备科技有限公司 | Hot dip galvanized steel pipe and continuous production method thereof |
-
2009
- 2009-12-11 CN CN200910242316A patent/CN101709445A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646954A (en) * | 2014-12-15 | 2015-05-27 | 湖南元拓实业集团有限公司 | Online continuous plating process |
| CN105479122A (en) * | 2016-02-17 | 2016-04-13 | 湖南元拓实业集团有限公司 | Online continuous outer hot dip galvanizing and inner plating composite welded pipe production process |
| CN105479122B (en) * | 2016-02-17 | 2018-09-14 | 湖南元拓实业集团有限公司 | A kind of composite welded pipe production technology of on-line continuous outer galvanizing and interior coating |
| CN106811711A (en) * | 2017-01-18 | 2017-06-09 | 北京钢研新冶工程设计有限公司 | A kind of continuous hot-dipping galvanizing and dual-purpose production unit and the production technology of UV color coatings |
| CN106939398A (en) * | 2017-05-04 | 2017-07-11 | 西安泰力松新材料股份有限公司 | A kind of wire tin plating technique and its tinning stack |
| CN116060892A (en) * | 2023-03-07 | 2023-05-05 | 杭州金固环保设备科技有限公司 | Hot dip galvanized steel pipe and continuous production method thereof |
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Application publication date: 20100519 |