CN103692167B - Manufacture the method for UNSN08028 tubing and casing - Google Patents
Manufacture the method for UNSN08028 tubing and casing Download PDFInfo
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- CN103692167B CN103692167B CN201310714185.8A CN201310714185A CN103692167B CN 103692167 B CN103692167 B CN 103692167B CN 201310714185 A CN201310714185 A CN 201310714185A CN 103692167 B CN103692167 B CN 103692167B
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- tubing
- unsn08028
- casing
- hollow billet
- cold
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of method manufacturing UNSN08028 tubing and casing, the method carries out following process successively to pipe: hot piercing, hot extrusion, cold expander, solid solution and cold forging.UNSN08028 tubing and casing made according to the method for the present invention has excellent strength characteristics.
Description
Technical field
The present invention relates to a kind of method manufacturing UNSN08028 tubing and casing.
Background technology
Major part petroleum resources contains CO
2and H
2s.Wherein, some oil wells gas is only containing CO
2or only containing H
2s, more casinghead gas is simultaneously containing CO
2and H
2s.This causes the etching problem of Oil/gas Well very serious.Therefore, ordinary carbon steel, low-alloy steel even the stainless steel such as 13Cr, 22Cr cannot meet the demands.
UNSN08028 iron nickel base alloy has excellent intensity and corrosion resistance, can meet the particular/special requirement of the exploitation of peracidity oil gas field.UNSN08028 iron nickel base alloy main component (mass percent) is as shown in table 1.
Table 1
Summary of the invention
The object of the present invention is to provide a kind of method of manufacture UNSN08028 tubing and casing completely newly.
The method of manufacture UNSN08028 tubing and casing of the present invention carries out following process successively to pipe: hot piercing, hot extrusion, cold expander, solid solution and cold forging.
According to exemplary embodiment of the present invention, after by heating of pipe blank to 1180 DEG C-1200 DEG C, hot piercing can be carried out to pipe.
According to exemplary embodiment of the present invention, hot extrusion can be carried out after the hollow billet obtained through hot piercing is heated to 1210 DEG C-1250 DEG C.
According to exemplary embodiment of the present invention, described method can also comprise: after hot extrusion and before cold expander, carry out aligning, pickling, one or more process in tack and upper ash.
According to exemplary embodiment of the present invention, described method can also comprise: after solid solution, carries out cold-rolling treatment.
According to exemplary embodiment of the present invention, solution treatment 30 minutes-90 minutes can be carried out at the temperature of 1180 DEG C-1200 DEG C.According to exemplary embodiment of the present invention, can with H
2solution treatment is carried out as protective gas.
According to exemplary embodiment of the present invention, cold forging process can be carried out at ambient temperature.
According to exemplary embodiment of the present invention, cold forging process can comprise multiple passage, controls at 5%-8% by the sizing reduction of the first passage, and the sizing reduction of final pass controls at 7%-8%, and the sizing reduction of middle each passage controls at 8%-12%.
Method according to manufacture UNSN08028 tubing and casing of the present invention can manufacture the UNSN08028 tubing and casing with excellent strength characteristics.
Detailed description of the invention
The method according to manufacture UNSN08028 tubing and casing of the present invention is described in detail now with reference to exemplary embodiment.
Method according to manufacture UNSN08028 tubing and casing of the present invention carries out following process successively to pipe: hot piercing (reaming), hot extrusion, cold expander, solid solution and cold forging.
Method according to manufacture UNSN08028 tubing and casing of the present invention can manufacture the UNSN08028 tubing and casing with excellent strength characteristics.Especially, the method according to manufacture UNSN08028 tubing and casing according to the present invention carries out cold forging process after solution heat treatment, can manufacture the UNSN08028 tubing and casing with excellent in strength characteristic like this, can simplified manufacturing technique reducing costs.
The method of the manufacture UNSN08028 tubing and casing according to exemplary embodiment of the present invention will be described in detail belows.
First, the pipe for the manufacture of UNSN08028 tubing and casing can be prepared.According to exemplary embodiment of the present invention, peeling machine process pipe can be used in this step to meet pre-provisioning request (such as to obtain surface smoothness, surface smoothness is better than Ra1.0) pipe, and the pipe processed can be machined to predetermined length so that subsequent treatment.
Next, hot piercing (reaming) process can be carried out to pipe, thus obtain hollow billet.According to exemplary embodiment of the present invention, after by heating of pipe blank to 1180 DEG C-1200 DEG C, hot piercing can be carried out to pipe.Such as, 10MN vertical water pressure staving press can be used to carry out expanding treatment to pipe.Reaming pipe is preheated to 900 DEG C-950 DEG C can first to use rotary heating furnace will treat under micro-reducing atmosphere, then uses power frequency induction furnace will treat reaming heating of pipe blank to 1180 DEG C-1200 DEG C, thus carries out hot piercing process to pipe and obtain hollow billet.
Next, hot extrusion can be carried out to processing through hot piercing (reaming) hollow billet obtained, to make hollow billet shaping for the first time and to make hollow billet dense internal organization.According to exemplary embodiment of the present invention, the hollow billet obtained can be heated to, after 1210 DEG C-1250 DEG C, carry out hot extrusion to hollow billet using such as power frequency heating furnace through hot piercing process.Here, 31.5MN horizontal hydraulic extruder can be used to carry out hot extrusion.
Next, cold expander process can be carried out to the hollow billet crossed through hot extrusion, to make hollow billet post forming.Here LB75 single line chain type drawbench can be used to carry out cold expander process to the hollow billet crossed through hot extrusion.
Then, solution treatment can be carried out to the hollow billet through cold expander process, thus eliminate the precipitated phase in hollow billet.According to exemplary embodiment of the present invention, can with H
2at the temperature of 1180 DEG C-1200 DEG C, solution treatment 30 minutes-90 minutes is carried out as protective gas.After solution treatment, winding-up H can be adopted
2mode make the hollow billet of solution treatment be cooled to about 200 DEG C in 3 minutes.Here, EF stove (at the bottom of electric heater frost protection atmosphere roller stove) can be used to carry out solution treatment to hollow billet.
Finally, precise forging machine can be used to carry out cold forging process to the hollow billet through solution treatment.According to exemplary embodiment of the present invention, cold forging process can be carried out to hollow billet at ambient temperature.According to exemplary embodiment of the present invention, cold forging process can comprise multiple passage.In implementation process, can control at 5%-8% by the sizing reduction of the first passage, the sizing reduction of final pass controls at 7%-8%, and the sizing reduction of middle each passage controls at 8%-12%, can improve hollow billet intensity like this, makes properties of product reach standard-required.
In addition, according to exemplary embodiment of the present invention, can to align hollow billet after hot extrusion and before cold expander process, pickling, one or more process in tack and upper ash.
Such as, straightening processing can be carried out to the hollow billet crossed through hot extrusion on KR2757 roller pipe straightener or JGL-2506 roller pipe straightener, be better than 3/1000mm to make the linearity after aligning.
Such as, HNO can be used
3with the mixed acid hollow billet that pickling is crossed through hot extrusion at the temperature of about 80 DEG C of HF, to remove the oxide skin on hollow billet.
Such as, such as band saw or rosette can be used to saw and carry out tack process to the hollow billet crossed through hot extrusion, preferably, tack length is less than 100mm.
Again such as, to carry out upper ash process to hollow billet on the body that such as butter lime can be applied to hollow billet, thus the object expanding and pull out lubrication is reached.
As mentioned above, according to exemplary embodiment of the present invention, can to align hollow billet after hot extrusion and before cold expander process, pickling, multiple process in tack and upper ash.Such as, can the hollow billet after hot extrusion be aligned successively, pickling, tack and upper ash process.
In addition, according to exemplary embodiment of the present invention, after solution treatment, cold-rolling treatment can be carried out to hollow billet, to make the thickness of the hollow billet after hot extrusion, cold expander process even, and the length of the hollow billet for cold forging process can be increased.Such as, HPT250 cold pilger mill can be used to carry out cold-rolling treatment to hollow billet.
The specific embodiment of the method for manufacture UNSN08028 tubing and casing of the present invention will be described below.
Embodiment 1
Use circular pipe blank peeling to the diameter that the diameter for the preparation of UNSN08028 tubing and casing is 320mm by S325 Bars Peeling Machine to be 305mm, thus ensure that the surface smoothness of the circular pipe blank after peeling is better than Ra1.0.Use rosette saw that circular pipe blank is cut into four sections of pipes that length is 850mm, wherein, the UNSN08028 tubing and casing be made up of four sections of pipes corresponds respectively to the example 1-4 in table 1.
In 12m annular furnace, the pipe after peeling is preheated to 900-950 DEG C.Use power frequency induction furnace by pre-warmed heating of pipe blank to 1180-1200 DEG C.Use 10MN vertical water pressure staving press to carry out expanding treatment to the pipe after heat treatment, thus obtain that diameter is 311mm, wall thickness is the hollow billet of 76.5mm.
Use power frequency heating furnace that the hollow billet after expanding treatment is heated to 1210-1250 DEG C.Use 31.50MN horizontal hydraulic extruder to carry out hot extrusion, thus form that diameter is 219mm, wall thickness is the hollow billet of 35mm.
KR2757 roller straightener carries out straightening processing; Use HNO
3at the temperature of about 80 DEG C, pickling is carried out, to remove the oxide skin on hollow billet with the mixed acid of HF; Band saw is used to carry out tack process to hollow billet; To carry out upper ash process to hollow billet on body butter lime being applied to hollow billet.
Use LB75 single line chain type drawbench to carry out cold expander process to hollow billet, thus obtain that diameter is 270mm, wall thickness is the hollow billet of 35mm.
Use EF stove, with H
2at the temperature of 1180 DEG C-1200 DEG C, solution treatment 60 minutes is carried out as protective gas.After solution treatment, adopt the H of winding-up-60 DEG C
2mode make the hollow billet of solution treatment be cooled to about 200 DEG C in 3 minutes.
Use HPT250 cold pilger mill to carry out cold-rolling treatment to hollow billet, thus obtain that diameter is 245mm, wall thickness is the hollow billet of 32mm.
Finally, precise forging machine is used to carry out cold forging process to the hollow billet crossed through cold-rolling treatment at ambient temperature.Here, cold forging process comprises four-pass, and wherein, the sizing reduction of the first passage is the sizing reduction of the 5%, second passage be the 8%, three passage sizing reduction is 8%, and the sizing reduction of final pass is 7%.
The testing result of the tubing and casing of the example 1-4 in the present embodiment has been shown in table 2.
Table 2
Embodiment 2
Adopt and prepare tubing and casing with step substantially identical in embodiment 1.Difference is: prepare six sections of pipes (corresponding respectively to the example 5-10 in table 3); In hot extrusion step, obtain that diameter is 219mm, wall thickness is the hollow billet of 32mm; In cold expander step, obtain that diameter is 245mm, wall thickness is the hollow billet of 32mm; Directly cold forging process is carried out without the cold-rolling treatment in embodiment 1.
The testing result of the tubing and casing of the example 5-10 in the present embodiment has been shown in table 3.
Table 3
Visible see the above description to various embodiments of the present invention, the method preparing UNSN08028 tubing and casing is according to an exemplary embodiment of the present invention simple, and can prepare the UNSN08028 tubing and casing with excellent strength characteristics.Especially, not only can realize the requirement of strength of UNSN08028 tubing and casing by carrying out cold forging process after heat treatment, can also carry out shaping to hollow billet, thus the satisfactory UNSN08028 tubing and casing of preparation size.
In addition, although describe the method preparing UNSN08028 tubing and casing with reference to exemplary embodiment of the present invention, will be appreciated that and the invention is not restricted to above embodiment.
Claims (7)
1. manufacture a method for UNSN08028 tubing and casing, it is characterized in that, described method carries out following process successively to pipe: hot piercing, hot extrusion, cold expander, solid solution, cold rolling and cold forging,
Wherein, cold forging process comprises multiple passage, controls at 5%-8% by the sizing reduction of the first passage, and the sizing reduction of final pass controls at 7%-8%, and the sizing reduction of middle each passage controls at 8%-12%.
2. the as claimed in claim 1 method manufacturing UNSN08028 tubing and casing, is characterized in that, after by heating of pipe blank to 1180 DEG C-1200 DEG C, carry out hot piercing to pipe.
3. the method manufacturing UNSN08028 tubing and casing as claimed in claim 1, is characterized in that, after the hollow billet obtained through hot piercing is heated to 1210 DEG C-1250 DEG C, carries out hot extrusion.
4. the as claimed in claim 1 method manufacturing UNSN08028 tubing and casing, it is characterized in that, described method also comprises: after hot extrusion and before cold expander, carry out aligning, pickling, one or more process in tack and upper ash.
5. the method manufacturing UNSN08028 tubing and casing as claimed in claim 1, is characterized in that, at the temperature of 1180 DEG C-1200 DEG C, carry out solution treatment 30 minutes-90 minutes.
6. the method manufacturing UNSN08028 tubing and casing as claimed in claim 5, is characterized in that, with H
2solution treatment is carried out as protective gas.
7. the method manufacturing UNSN08028 tubing and casing as claimed in claim 1, is characterized in that, carry out cold forging process at ambient temperature.
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|---|---|---|---|
| CN201310714185.8A CN103692167B (en) | 2013-12-20 | 2013-12-20 | Manufacture the method for UNSN08028 tubing and casing |
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|---|---|---|---|
| CN201310714185.8A CN103692167B (en) | 2013-12-20 | 2013-12-20 | Manufacture the method for UNSN08028 tubing and casing |
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| CN103692167A CN103692167A (en) | 2014-04-02 |
| CN103692167B true CN103692167B (en) | 2016-04-20 |
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| CN107008767A (en) * | 2017-03-23 | 2017-08-04 | 浙江久立特材科技股份有限公司 | A kind of Ni-based less-deformable alloy pipe joint hot-working method |
Citations (5)
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|---|---|---|---|---|
| CN101613834A (en) * | 2008-06-25 | 2009-12-30 | 宝山钢铁股份有限公司 | Peracidity deep-well Fe based austenite alloy tubing and casing and manufacture method |
| CN101613833A (en) * | 2008-06-25 | 2009-12-30 | 宝山钢铁股份有限公司 | Peracidity deep-well Ni base alloy tubing and casing and manufacture method |
| CN101665891A (en) * | 2009-08-29 | 2010-03-10 | 浙江久立特材科技股份有限公司 | Stainless heat-resistant alloy steel seamless steel tube and preparation method thereof |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
| CN103447760A (en) * | 2013-08-12 | 2013-12-18 | 新兴铸管股份有限公司 | Manufacturing method of N08028 seamless alloy steel pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5594164B2 (en) * | 2011-01-27 | 2014-09-24 | 新日鐵住金株式会社 | Manufacturing method of seamless steel pipe in high alloy or stainless steel |
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| CN101613834A (en) * | 2008-06-25 | 2009-12-30 | 宝山钢铁股份有限公司 | Peracidity deep-well Fe based austenite alloy tubing and casing and manufacture method |
| CN101613833A (en) * | 2008-06-25 | 2009-12-30 | 宝山钢铁股份有限公司 | Peracidity deep-well Ni base alloy tubing and casing and manufacture method |
| CN101665891A (en) * | 2009-08-29 | 2010-03-10 | 浙江久立特材科技股份有限公司 | Stainless heat-resistant alloy steel seamless steel tube and preparation method thereof |
| CN102513792A (en) * | 2011-12-28 | 2012-06-27 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for oil pump shaft for automobile |
| CN103447760A (en) * | 2013-08-12 | 2013-12-18 | 新兴铸管股份有限公司 | Manufacturing method of N08028 seamless alloy steel pipe |
Non-Patent Citations (1)
| Title |
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| UNSN08028油套管的开发试制;我的钢铁;《UNSN08028油套管的开发试制》、《http://tech.mysteel.com/13/0712/05/27C1469F437AA62E.html》;钢联资讯;20130712;第1-8段 * |
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