CN106311798A - Finish drawing process for special-shaped steel tube body - Google Patents
Finish drawing process for special-shaped steel tube body Download PDFInfo
- Publication number
- CN106311798A CN106311798A CN201610688458.XA CN201610688458A CN106311798A CN 106311798 A CN106311798 A CN 106311798A CN 201610688458 A CN201610688458 A CN 201610688458A CN 106311798 A CN106311798 A CN 106311798A
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- CN
- China
- Prior art keywords
- steel pipe
- pipe
- obform body
- rolling
- hollow billet
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 141
- 239000010959 steel Substances 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 89
- 230000008569 process Effects 0.000 title claims abstract description 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000005554 pickling Methods 0.000 claims abstract description 26
- 238000005098 hot rolling Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 26
- 238000005096 rolling process Methods 0.000 claims description 23
- 238000007654 immersion Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 210000000078 claw Anatomy 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009785 tube rolling Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000004513 sizing Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
Abstract
The invention discloses a finish drawing process for a special-shaped steel tube body. The process comprises the following steps of (1) preparation of ram materials; (2) perforating treatment of a tube billet; (3) hot rolling treatment of a hollow billet; (4) drawing treatment of a hollow steel tube; (5) acid dipping of the special-shaped steel tube body; (6) sizing and reducing treatment of the special-shaped steel tube body; and (7) packaging of finished products. According to the finish drawing process, the structure is simple, the defective rate is reduced, and the cost is lowered; meanwhile, the finish drawing process is simple, the practical production requirements are met, and the comprehensive utilization rate is increased; moreover, the special-shaped steel tube body is machines more convenient and faster by strictly controlling the blanking size, the heating time, the pickling time and the pickling temperature in the technological process; the rate of later finished products is increased, and economic benefits of products are increased.
Description
Technical field
The present invention relates to the finish draw technique of a kind of steel pipe obform body.
Background technology
19th century younger oil exploitation, naval vessel, boiler, the manufacture of aircraft, for the second time world during Two World Wars
The manufacture of big apparatus of thermo-electric power boiler after the war, the development of chemical industry and the drilling of petroleum gas and transport etc., the most effectively promote
Steel Tube Industries in kind, yield and qualitative development.Steel pipe be applied not only to conveyance fluid and powdery solid, exchange heat energy,
Manufacture machine components and container, it or a kind of economic steel.Building structure rack, pillar and machinery mount is manufactured with steel pipe,
Weight can be alleviated, save metal 20～40%, and batch production mechanized construction can be realized.Highway bridge is manufactured not with steel pipe
But steel can be saved, simplify construction, and the area of stopping off, investment reduction and maintenance cost can be greatly reduced.
Steel pipe obform body is the type in steel pipe.At present, steel pipe obform body is the most medical with the industry such as chemical industry, refrigeration
In, it is indispensable part during copper covered steel pipeline connects.Along with perfecting of countries in the world environmental protection law, export to the ground such as European Union
In the household appliances of district and country, the heavy metal of parts all must control in allowed band.Being processed into of domestic steel pipe obform body
Filling heavy metal squeezing and pressing method continued to use by type the most always, and the greatest drawback of this process is to ensure that content of beary metal is up to standard
In causing removing copper-clad steel pipe, the remaining complex process of lead, cycle length, cost height, exist what the most universal thus technique produced
Abnormity copper-clad steel pipe remnants lead content exceeds standard phenomenon.Additionally during the remaining lead of cleaning, surrounding can be polluted,
And also directly affect the physical and mental health of operator.
Summary of the invention
Present invention aim at providing the finish draw technique of a kind of steel pipe obform body for the deficiency existing for prior art
Technical scheme, significantly improve machining accuracy and the work efficiency of steel pipe obform body, reduction in the numbers of seconds, cost-effective expense, with
Time this finish draw technique simple, meet the production requirement of reality, improve comprehensive utilization ratio.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that
The finish draw technique of a kind of steel pipe obform body, it is characterised in that comprise the steps:
1) raw-material preparation:
A, according to design drawing and processing technique requirement, and consider that the length after steel pipe finish draw is to determine the drop-down chi of steel pipe
Very little, carry out the blanking of pipe further according to the size determined, and with pipeline beveling machine, the pipe after blanking is carried out retaining wall on slope；
B, the pipe that blanking is good is carried out size, tolerance, end surface inclination, pipeline section burr, chamfering and the inspection of length dimension
Look into, it is ensured that it reaches the processing request of reality, it is simple to the post-production of pipe and process；
C, to checking qualified pipe to carry out the flushing on surface, the impurity on its surface is rinsed well, it is to avoid affect the later stage
Process to pipe；
2) perforation of pipe processes:
A, pipe bore a hole before, pipe is fixed on lathe, is drilled with on the drilling equipment end face to pipe threaded end
Internal point, so that it is guaranteed that the perforation degree of accuracy of pipe, prevents deviation occur during perforation；
B, again with rotary heating furnace to centering after pipe carry out heat treated, by the attemperating unit in rotary heating furnace
Control the heating-up temperature of pipe, until the temperature of pipe reaches the requirement of perforation, then with pushing piercing machine, pipe is bored a hole
Process so that pipe is made for hollow billet after perforation；
3) hot rolling of hollow billet processes:
The head end of hollow billet is fixedly clamped by a, the clamping device first passed through on hot-rolling mill workbench, by adjusting claw
Shrinkage degree so that claw is firmly fixing with hollow billet to be connected, and improves the fixation performance of hollow billet, and the tail end of hollow billet passes through
Bracket system is lifted fixing, improves stability further；
After b, hollow billet fix, open heater so that the coil being wound around on the heating rod in rolling pipe starts heating,
Heat is delivered to the surface of rolling pipe again by the heat sink on heating rod, thus preheats rolling pipe so that surface
Temperature reaches the temperature value of hot rolling；
C, when the surface temperature of rolling pipe rises to the value specified, rolling pipe is moved to the head end of hollow billet, then passes through
Rolling pipe is moved down by retractor device, and during until rolling pipe just contacts with the surface of hollow billet, retractor device quits work, and drives
Device drives rolling pipe to move toward end from the head end of hollow billet, ultimately generates hollow steel pipe；
4) drawing of hollow steel pipe processes:
Hollow steel pipe is heated to 100～300 DEG C by a, employing high-frequency induction heating apparatus；
B, with drawbench, air steel pipe carried out drawing process again, keep the outside dimension processing capacity of hollow steel pipe 0～
6mm, internal diameter size processing capacity is 0.5～1mm, until hollow steel pipe is drawn into required steel pipe obform body；
5) pickling processes of steel pipe obform body:
A, by fixed mount, steel pipe obform body is immersed in pre-immersion trough, by the liquid in pre-immersion trough to steel pipe obform body
Carry out preliminary pickling processes；
B, again fixed mount is moved in acid storage, steel pipe obform body is carried out pickling processes, pickling Immersion time be 5～
12min, and acid liquor temperature is 50～60 DEG C；
With hot water, steel pipe obform body is carried out operation after c, pickling, maintains water temperature at more than 85 DEG C, clean 3 times, then
Dry up with high-pressure blast；
6) tube reducing of determining of steel pipe obform body processes:
A, the steel pipe obform body after pickling processes is carried out cooling process, steel pipe metamer is fully immersed in coolant
Cooling down, cool time is 12～24h；
B, cooled down after, carry out determining tube reducing process to steel pipe obform body with size-reducing mill；
C, finally two ends before and after steel pipe metamer are excised, and steel pipe obform body is carried out straightening processing；
7) finished product packing processes:
Use measurement apparatus size and the flexibility of steel pipe obform body are checked, and to steel pipe obform body inside and outside
Surface checks, it is ensured that crackle, scuffing, impression does not occur in the surfaces externally and internally of steel pipe obform body so that it is meet adding of reality
Work requirement, more standard compliant steel pipe obform body is carried out the printing of model specification, and the external coating to steel pipe obform body
One layer of paint, then through final packaging warehouse-in.
Further, in step 2) step b in, the heating-up temperature of rotary heating furnace is 600～750 DEG C.
Further, step 3) step a in, then when hollow billet being clamped fixing, first according to the actual processing of hollow billet
Length and requirement, carry out the adjustment of bracket locations, so that the hollow billet of different processing dimension can be by fixation.
Further, in step 6) and step 7) between steel pipe obform body need through expansion process, by reeler to steel
The wall thickness of pipe obform body carries out expansion, and the wall unevenness that elimination tube rolling causes is even, also makes the interior appearance of steel pipe obform body simultaneously
Face is smooth so that steel pipe obform body is more round just.
Further, in step 4) in, the drawing speed of drawbench is 5～30m/min.
Further, in step 3) in, after processing hollow steel pipe machines, clearing apparatus is opened, and air pump is by connecting
Pipe provides source of the gas for spray boom, and spray boom carries out cleaning work by shower nozzle to workbench again, and mobile device drives spray boom to move simultaneously,
So that the everywhere on workbench can be cleaned up.
Further, in step 6) b in, need steel pipe obform body is carried out electrochemical deoiling process after pickling processes, rotate dress
Putting drive steel pipe obform body to rotate, hot alkaline solution carries out oily waste degradation process by sprayer unit to steel pipe obform body.
Finish draw technique of the present invention is simple, and overall procedure automation degree is high, it is simple to actual operation and use.
The precision of the steel pipe obform body simultaneously produced by this finish draw technique is high, and quality of finished product good, defect rate is low, and energy loss is little.And
And this technical process is by strictly controlling blank size, heat time heating time and pickling time, pickling temperature so that steel pipe obform body
It is the most convenient to process, and improves the trimmed size in later stage, improves the economic benefit of product.
Present configuration is simple, practical, significantly improves machining accuracy and the work efficiency of steel pipe obform body, reduces secondary
Product rate, cost-effective expense, this finish draw technique is simple simultaneously, meets the production requirement of reality, improves comprehensive utilization ratio.
Detailed description of the invention
The finish draw technique of a kind of steel pipe obform body, comprises the steps:
1) raw-material preparation:
A, according to design drawing and processing technique requirement, and consider that the length after steel pipe finish draw is to determine the drop-down chi of steel pipe
Very little, carry out the blanking of pipe further according to the size determined, and with pipeline beveling machine, the pipe after blanking is carried out retaining wall on slope；
B, the pipe that blanking is good is carried out size, tolerance, end surface inclination, pipeline section burr, chamfering and the inspection of length dimension
Look into, it is ensured that it reaches the processing request of reality, it is simple to the post-production of pipe and process；
C, to checking qualified pipe to carry out the flushing on surface, the impurity on its surface is rinsed well, it is to avoid affect the later stage
Process to pipe；
2) perforation of pipe processes:
A, pipe bore a hole before, pipe is fixed on lathe, is drilled with on the drilling equipment end face to pipe threaded end
Internal point, so that it is guaranteed that the perforation degree of accuracy of pipe, prevents from occurring during perforation deviation, reduces pipe wall unevenness, improve secondary
Bite condition；
B, again with rotary heating furnace to centering after pipe carry out heat treated, by the attemperating unit in rotary heating furnace
Control the heating-up temperature of pipe, until the temperature of pipe reaches the requirement of perforation, then with pushing piercing machine, pipe is bored a hole
Process so that pipe is made for hollow billet after perforation, and the heating-up temperature of rotary heating furnace is 600～750 DEG C, and heat treated can
To improve the plasticity of pipe, reduce resistance of deformation, prepare good worked structure for tube rolling, be effectively improved the performance of metal, with
Shi Caiyong rotary heating furnace is adapted to the heating of the pipe of different-diameter and length, and rotary heating furnace is so that pipe simultaneously
Be heated evenly, heat time heating time, section, improved the efficiency of heating surface, and automaticity is the highest, it is simple to actual operation and use；
3) hot rolling of hollow billet processes:
The head end of hollow billet is fixedly clamped by a, the clamping device first passed through on hot-rolling mill workbench, by adjusting claw
Shrinkage degree so that claw is firmly fixing with hollow billet to be connected, and improves the fixation performance of hollow billet, and the tail end of hollow billet passes through
Bracket system is lifted fixing, improves stability further, then when hollow billet being clamped fixing, first according to the reality of hollow billet
Processing length and requirement, carry out the adjustment of bracket locations, so that the hollow billet of different processing dimension can be by fixation；
After b, hollow billet fix, open heater so that the coil being wound around on the heating rod in rolling pipe starts heating,
Heat is delivered to the surface of rolling pipe again by the heat sink on heating rod, thus preheats rolling pipe so that surface
Temperature reaches the temperature value of hot rolling；
C, when the surface temperature of rolling pipe rises to the value specified, rolling pipe is moved to the head end of hollow billet, then passes through
Rolling pipe is moved down by retractor device, and during until rolling pipe just contacts with the surface of hollow billet, retractor device quits work, and drives
Device drives rolling pipe to move toward end from the head end of hollow billet, ultimately generates hollow steel pipe；
D, after when processing, hollow steel pipe machines, clearing apparatus is opened, and air pump provides source of the gas by connecting tube for spray boom,
Spray boom carries out cleaning work by shower nozzle to workbench again, and mobile device drives spray boom to move simultaneously, so that on workbench
Everywhere can be cleaned up, by the processing enhanced convenience that can be designed so that steel pipe obform body of clearing apparatus
Automatization, the hot-rolling mill process to following hollow billet of being also more convenient for, improves work quality and operating rate, reduction in the numbers of seconds, reduces
The loss of energy consumption；
4) drawing of hollow steel pipe processes:
Hollow steel pipe is heated to 100～300 DEG C by a, employing high-frequency induction heating apparatus；
B, with drawbench, air steel pipe carried out drawing process again, keep the outside dimension processing capacity of hollow steel pipe 0～
6mm, internal diameter size processing capacity is 0.5～1mm, until hollow steel pipe to be drawn into required steel pipe obform body, drawbench
Drawing speed is 5～30m/min；
5) pickling processes of steel pipe obform body:
A, by fixed mount, steel pipe obform body is immersed in pre-immersion trough, by the liquid in pre-immersion trough to steel pipe obform body
Carry out preliminary pickling processes；
B, again fixed mount is moved in acid storage, steel pipe obform body is carried out pickling processes, pickling Immersion time be 5～
12min, and acid liquor temperature is 50～60 DEG C, needs steel pipe obform body is carried out electrochemical deoiling process, tumbler after pickling processes
Driving steel pipe obform body to rotate, hot alkaline solution carries out oily waste degradation process by sprayer unit to steel pipe obform body；
With hot water, steel pipe obform body is carried out operation after c, pickling, maintains water temperature at more than 85 DEG C, clean 3 times, then
Dry up with high-pressure blast, the corrosion resistance and good of the steel pipe obform body after pickling processes, extend the use of steel pipe obform body
Life-span；
6) tube reducing of determining of steel pipe obform body processes:
A, the steel pipe obform body after pickling processes is carried out cooling process, steel pipe metamer is fully immersed in coolant
Cooling down, cool time is 12～24h；
B, cooled down after, carry out determining tube reducing process to steel pipe obform body with size-reducing mill；
C, finally two ends before and after steel pipe metamer are excised, and steel pipe obform body is carried out straightening processing；
7) expansion of steel pipe obform body processes:
By reeler, the wall thickness of steel pipe obform body being carried out expansion, the wall unevenness that elimination tube rolling causes is even, the most also
The surfaces externally and internally making steel pipe obform body is smooth so that steel pipe obform body is more round just；
8) finished product packing processes:
Steel pipe obform body needs to process through expansion, by reeler, the wall thickness of steel pipe obform body is carried out expansion, eliminates
The wall unevenness that tube rolling causes is even, and the surfaces externally and internally simultaneously also making steel pipe obform body is smooth so that steel pipe obform body is more round just
Use measurement apparatus size and the flexibility of steel pipe obform body are checked, and to steel pipe obform body inside and outside
Surface checks, it is ensured that crackle, scuffing, impression does not occur in the surfaces externally and internally of steel pipe obform body so that it is meet adding of reality
Work requirement, more standard compliant steel pipe obform body is carried out the printing of model specification, and the external coating to steel pipe obform body
One layer of paint, then through final packaging warehouse-in.
These are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.Any with this
Based on bright, for realizing essentially identical technique effect, done ground simple change, equivalent or modification etc., all contain
Among protection scope of the present invention.
Claims (7)
1. the finish draw technique of a steel pipe obform body, it is characterised in that: comprise the steps:
1) raw-material preparation:
A, according to design drawing and processing technique requirement, and consider the length after steel pipe finish draw to determine the drop-down size of steel pipe,
Carry out the blanking of pipe further according to the size determined, and with pipeline beveling machine, the pipe after blanking is carried out retaining wall on slope；
B, the pipe that blanking is good is carried out size, tolerance, end surface inclination, pipeline section burr, chamfering and the inspection of length dimension, really
Protect its processing request reaching reality, it is simple to the post-production of pipe and process；
C, to checking qualified pipe to carry out the flushing on surface, the impurity on its surface is rinsed well, it is to avoid affect the later stage to pipe
The process of base；
2) perforation of pipe processes:
A, pipe bore a hole before, pipe is fixed on lathe, is drilled with centering with on the drilling equipment end face to pipe threaded end
Hole, so that it is guaranteed that the perforation degree of accuracy of pipe, prevents deviation occur during perforation；
B, with rotary heating furnace, the pipe after centering is carried out heat treated again, controlled by attemperating unit in rotary heating furnace
The heating-up temperature of pipe, until the temperature of pipe reaches the requirement of perforation, then carries out perforation process with pushing piercing machine to pipe,
Pipe is made to be made for hollow billet after perforation；
3) hot rolling of hollow billet processes:
The head end of hollow billet is fixedly clamped by a, the clamping device first passed through on hot-rolling mill workbench, by adjusting the contraction of claw
Degree so that claw is firmly fixing with hollow billet to be connected, and improves the fixation performance of hollow billet, and the tail end of hollow billet passes through bracket
Device is lifted fixing, improves stability further；
After b, hollow billet fix, open heater so that the coil being wound around on the heating rod in rolling pipe starts heating, heat
It is delivered to the surface of rolling pipe again by the heat sink on heating rod, thus rolling pipe is preheated so that the temperature on surface
Reach the temperature value of hot rolling；
C, when the surface temperature of rolling pipe rises to the value specified, rolling pipe is moved to the head end of hollow billet, then by flexible
Rolling pipe is moved down by device, and during until rolling pipe contacts with the surface of hollow billet, retractor device quits work, and driving means is driven
Action roller tube rolling moves toward end from the head end of hollow billet, ultimately generates hollow steel pipe；
4) drawing of hollow steel pipe processes:
Hollow steel pipe is heated to 100～300 DEG C by a, employing high-frequency induction heating apparatus；
B, with drawbench, air steel pipe carried out drawing process again, keep the outside dimension processing capacity of hollow steel pipe 0～6mm,
Internal diameter size processing capacity is 0.5～1mm, until hollow steel pipe is drawn into required steel pipe obform body；
5) pickling processes of steel pipe obform body:
A, by fixed mount, steel pipe obform body is immersed in pre-immersion trough, by the liquid in pre-immersion trough, steel pipe obform body is carried out
Preliminary pickling processes；
B, again fixed mount is moved in acid storage, steel pipe obform body is carried out pickling processes, pickling Immersion time be 5～
12min, and acid liquor temperature is 50～60 DEG C；
With hot water, steel pipe obform body is carried out operation after c, pickling, maintains water temperature at more than 85 DEG C, clean 3 times, then with high
Pressure wind is done；
6) tube reducing of determining of steel pipe obform body processes:
A, the steel pipe obform body after pickling processes is carried out cooling process, steel pipe metamer is fully immersed in coolant and carries out
Cooling, cool time is 12～24h；
B, cooled down after, carry out determining tube reducing process to steel pipe obform body with size-reducing mill；
C, finally two ends before and after steel pipe metamer are excised, and steel pipe obform body is carried out straightening processing；
7) finished product packing processes:
Use measurement apparatus that size and the flexibility of steel pipe obform body are checked, and the surfaces externally and internally to steel pipe obform body
Check, it is ensured that crackle, scuffing, impression does not occur in the surfaces externally and internally of steel pipe obform body so that it is the processing meeting reality is wanted
Ask, more standard compliant steel pipe obform body is carried out the printing of model specification, and the external coating one layer to steel pipe obform body
Paint, then through final packaging warehouse-in.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 2) step
In rapid b, the heating-up temperature of rotary heating furnace is 600～750 DEG C.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 3) step
In rapid a, when hollow billet being clamped fixing, first according to actual processing length and the requirement of hollow billet, carry out bracket locations
Adjust, so that the hollow billet of different processing dimension can be by fixation.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 6) and institute
State step 7) between steel pipe obform body need through expansion process, by reeler, the wall thickness of steel pipe obform body is carried out expansion,
The wall unevenness that elimination tube rolling causes is even, and the surfaces externally and internally simultaneously also making steel pipe obform body is smooth so that steel pipe obform body is more
Circle is just.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 4) in,
The drawing speed of described drawbench is 5～30m/min.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 3) in,
After processing hollow steel pipe machines, clearing apparatus is opened, and air pump provides source of the gas, spray boom to pass through by connecting tube for spray boom again
Shower nozzle carries out cleaning work to workbench, and mobile device drives spray boom to move, so that the everywhere on workbench is all simultaneously
Can be cleaned up.
The finish draw technique of a kind of steel pipe obform body the most according to claim 1, it is characterised in that: in described step 6) step
In rapid b, needing to carry out steel pipe obform body electrochemical deoiling process after pickling processes, tumbler drives steel pipe obform body to rotate, heat
Aqueous slkali carries out oily waste degradation process by sprayer unit to steel pipe obform body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688458.XA CN106311798B (en) | 2016-08-18 | 2016-08-18 | A kind of finish draw technique of steel pipe obform body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610688458.XA CN106311798B (en) | 2016-08-18 | 2016-08-18 | A kind of finish draw technique of steel pipe obform body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311798A true CN106311798A (en) | 2017-01-11 |
| CN106311798B CN106311798B (en) | 2019-01-08 |
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| CN201610688458.XA Active CN106311798B (en) | 2016-08-18 | 2016-08-18 | A kind of finish draw technique of steel pipe obform body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430995A (en) * | 2022-09-05 | 2022-12-06 | 攀钢集团成都钢钒有限公司 | Manufacturing method of 50Mn18Cr4V nonmagnetic steel pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144223A (en) * | 1993-11-19 | 1995-06-06 | Nakajima Kokan Kk | Manufacture of square steel tube with large diameter with emphasis on improving quality and uniformizing radiused shape of corner |
| CN101992230A (en) * | 2010-11-10 | 2011-03-30 | 江苏华程工业制管股份有限公司 | Method for manufacturing profiled steel pipe |
| CN104209363A (en) * | 2014-08-27 | 2014-12-17 | 无锡市华牧机械有限公司 | Stainless steel pipe processing technology |
| CN104551667A (en) * | 2013-10-16 | 2015-04-29 | 无锡江南高精度冷拔管有限公司 | Cold-rolled high-hardness seamless steel pipe manufacturing method |
| CN105127236A (en) * | 2015-08-18 | 2015-12-09 | 马鞍山市华科实业有限公司 | Manufacturing method for special-shaped steel pipes special for logistics shelves |
-
2016
- 2016-08-18 CN CN201610688458.XA patent/CN106311798B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07144223A (en) * | 1993-11-19 | 1995-06-06 | Nakajima Kokan Kk | Manufacture of square steel tube with large diameter with emphasis on improving quality and uniformizing radiused shape of corner |
| CN101992230A (en) * | 2010-11-10 | 2011-03-30 | 江苏华程工业制管股份有限公司 | Method for manufacturing profiled steel pipe |
| CN104551667A (en) * | 2013-10-16 | 2015-04-29 | 无锡江南高精度冷拔管有限公司 | Cold-rolled high-hardness seamless steel pipe manufacturing method |
| CN104209363A (en) * | 2014-08-27 | 2014-12-17 | 无锡市华牧机械有限公司 | Stainless steel pipe processing technology |
| CN105127236A (en) * | 2015-08-18 | 2015-12-09 | 马鞍山市华科实业有限公司 | Manufacturing method for special-shaped steel pipes special for logistics shelves |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430995A (en) * | 2022-09-05 | 2022-12-06 | 攀钢集团成都钢钒有限公司 | Manufacturing method of 50Mn18Cr4V nonmagnetic steel pipe |
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| CN106311798B (en) | 2019-01-08 |
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Denomination of invention: A fine drawing process for special-shaped steel pipe Effective date of registration: 20211227 Granted publication date: 20190108 Pledgee: Xinchang Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: Zhejiang Rijia Copper Technology Co.,Ltd. Registration number: Y2021330002630 |
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Denomination of invention: A Fine Drawing Process for Steel Pipe Shapes Effective date of registration: 20230911 Granted publication date: 20190108 Pledgee: Bank of China Limited by Share Ltd. Xinchang branch Pledgor: Zhejiang Rijia Copper Technology Co.,Ltd. Registration number: Y2023330002009 |