CN105171348A - Method for producing TA10 alloy seamless tube - Google Patents
Method for producing TA10 alloy seamless tube Download PDFInfo
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- CN105171348A CN105171348A CN201510563251.5A CN201510563251A CN105171348A CN 105171348 A CN105171348 A CN 105171348A CN 201510563251 A CN201510563251 A CN 201510563251A CN 105171348 A CN105171348 A CN 105171348A
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Abstract
The invention relates to a method for producing a TA10 alloy seamless tube. The method comprises the following steps: smelting a TA10 alloy blank by using an electron beam cold-hearth; milling the surface of the blank, then cutting off the head, and slicing the blank into square billets with the section size being 190-210mm*190-210mm; after chamfering and coping, rolling the square billets into bars with the diameters phi 60-130mm and the lengths being 550-5500mm by using a bar rolling mill; then, lathing the surface of each bar, carrying out coping for removing defects, and cleaning and drying the surface; continuously rolling the hollow billets to form pierced billets; coping the external surface of each pierced billet, and then carrying out cold rolling by using a cold rolling mill set; after cold rolling, carrying out degreasing, annealing, acid pickling and straightening treatment, and repeating the cycle until obtaining finished-product tubes with the needed specification; carrying out degreasing, finished-product annealing, acid pickling and straightening treatment for the finished-product tubes; after detecting the finished-product tubes to be qualified, putting the finished-product tubes in storage. The method has the characteristics of being high in production efficiency, low in production cost, high in qualified product ratio and high product quality, the quality of produced products meets the national standard, and the demand of mass production can be met.
Description
Technical field
The present invention relates to titanium alloy seamless pipe production technical field.
Background technology
TA10 is not because of containing your element rare, and solderability is good and plasticity is high, and corrosion resisting property in reductant and high-temperature chlorine compound and Ti-0.2Pb are close, and can partly replace Ti-Pd alloy.Because it is not containing noble metal Pb, make into product cost and greatly reduce, therefore, consider from corrosion resisting property and cost, this alloy is the most competitive current corrosion resistant Ti alloy, has higher promotion and application and is worth.
The report that the seamless pipe of current pure titanium and high-strength titanium alloy is produced is many, in its seamless pipe production technology more complicated, operation is longer, cannot produce on continuity ground on a large scale, as Chinese patent CN101708511A discloses the manufacture method of pure titanium seamless tubes, the method has larger improvement than extrusion at ingot blank production process, productivity ratio, Product Precision and lumber recovery is all had increased significantly, can meet the demand in industrial production.CN103934269A discloses a kind of TC4 titanium alloy seamless pipe and production method thereof, the method is mainly for extruded, that bar bores boring and roll piercing three kinds of methods deficiency, propose some solutions, and propose to adopt roll piercing, and carry out precision rolling, implementation temperature control sizing after finish rolling completes, and finishing obtains TC4 compo pipe.These two kinds of methods above-mentioned all adopt the method for forging to obtain pipe, after having forged, also need could obtain pipe to decaptitate tail (forging tongue), car face, surface cleaning etc. of pipe.And less owing to forging specification, human intervention is comparatively large, and the constant product quality produced is relatively poor.In addition, the pipe production cycle is longer, efficiency is lower, cannot realize successional production in enormous quantities.CN104212989A discloses a kind of method that TA10 hot continuous rolling square billet is produced in electron-beam cold bed furnace melting, and the method adopts electron-beam cold bed furnace to achieve the production of large gauge TA10 alloy slab.But prior art never effectively can produce the method for TA10 alloy seamless pipe.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide that a kind of production, production cost realizing successional TA10 alloy seamless pipe in enormous quantities is lower, the production method of the TA10 alloy seamless pipe of the impact that effectively can be reduced in artifical influence factor in traditional handicraft and the problem such as finished product structure property is uncontrollable.
In order to achieve the above object, the technical solution used in the present invention is as follows:
A production method for TA10 alloy seamless pipe, comprises the following steps:
(1) electron-beam cold bed furnace melting once is used to go out the TA10 alloy blank that specification is thick 210mm × wide 1050mm × long 8200mm, by blank milling face, the milling face degree of depth is 5 ~ 10mm, topping after milling face completes also cuts into the square billet that cross section specification is 190 ~ 200mm × 190 ~ 210mm, then through chamfering and reconditioning;
(2) the square billet bar mill after reconditioning being rolled into diameter is Φ 60 ~ 130mm, length is the bar of 550 ~ 5500mm, then carries out car light with lathe to its surface, goes defect reconditioning to the bar after car light, carry out surface clean after reconditioning completes, clean post-drying;
(3) bar that step (2) obtains is heated to 850 ~ 920 DEG C, after insulation 360 ~ 540min, adopts roll piercing to obtain hollow billet, hollow billet is carried out tandem rolling and form hollow forging;
(4) reconditioning is carried out to waste tube outer surface, then adopt cold mill complex cold rolling, cold rolling complete after carry out degreasing, annealing, pickling, straightening processing, and then cold rolling, degreasing, annealing, pickling, straightening processing, so move in circles, until obtain the finished product tubing of required specification, wherein, annealing temperature is 850 ~ 870 DEG C, temperature retention time 30 ~ 80min, then air cooling;
(5) finished product tubing is carried out degreasing, finished products, pickling, straightening processing again, after qualified after testing, can put in storage, wherein finished products temperature is 650 ~ 720 DEG C, and temperature retention time is 60 ~ 150min, then air cooling.
The composition quality of the TA10 alloy blank that the electron-beam cold bed furnace melting once described in above-mentioned steps (1) obtains is than being Mo0.25 ~ 0.35%, Ni0.6 ~ 0.9%, Fe≤0.20%, C≤0.05%, N≤0.03%, H≤0.015%, O≤0.18%, and surplus is Ti.Bake out temperature described in step (2) is 120 ~ 150 DEG C, and drying time is 60 ~ 180min.The external diameter of the finished product tubing described in step (5) is Φ 30 ~ 110mm, and wall thickness is 1.0 ~ 5.5mm; Its mechanical property is Rm>=550MP, A
50>=23%.
The present invention utilizes electron-beam cold bed furnace to have refining, purification effect, can produce the high-quality TA10 alloy blank that is mingled with without high/low density and can realize the advantage that blank in enormous quantities produces, producing TA10 alloy seamless pipe.Adopt the present invention, have production efficiency high, production cost is lower, and lumber recovery is high, the feature that product quality is high; The product quality of producing meets Standard, can meet the demand of production in enormous quantities.Present invention process is simple, easy to operate, result of use is good, when can ensure TA10 alloy seamless surface quality and physical property, production procedure is shortened dramatically, and improves lumber recovery, greatly reduces production cost, make product obtain the good market competitiveness.The invention provides the method effectively can producing TA10 alloy seamless pipe, fill up the blank of prior art.
Detailed description of the invention
Embodiment 1
A production method for TA10 alloy seamless pipe, comprises the following steps:
(1) use electron-beam cold bed furnace melting once goes out the TA10 alloy blank that specification is thick 210mm × wide 1050mm × long 8200mm, and the composition quality ratio of blank is Mo0.25%, Ni:0.9%, Fe≤0.20%, C≤0.05%, N≤0.03%, H≤0.015%, O≤0.18%, surplus are Ti.Be placed in by blank on milling machine, carry out milling face, the degree of depth in milling face is 10mm, and milling face completes and is placed on the excision of sawing machine enterprising wardrobe portion and blank cut into cross section specification is 190mm × 190mm, length is the square billet of 800mm, then through 45 ° of chamferings, and reconditioning process;
(2) by the square billet after reconditioning, rolling into diameter with bar mill is Φ 60mm, length is the bar of 5500mm, then with lathe, car light is carried out to its surface, defect reconditioning is gone to the bar after car light, after reconditioning completes, its surface is cleaned, and at 120 DEG C of baking 60min, bar is dried;
(3) bar of oven dry is heated to 880 DEG C, after insulation 360min, adopts roll piercing to obtain hollow billet; Tandem rolling is carried out to hollow billet and forms hollow forging;
(4) reconditioning is carried out to waste tube outer surface, then adopt cold mill complex cold rolling, cold rolling complete after carry out degreasing, annealing, pickling, straightening processing, and then cold rolling, degreasing, annealing, pickling, straightening processing, so move in circles, until obtain the finished product tubing of required specification, wherein, annealing temperature is 850 DEG C, temperature retention time 30min, then air cooling;
(5) finished product tubing is carried out degreasing, finished products, pickling, straightening processing again, after Performance Detection is qualified, can put in storage.Wherein finished products temperature is 700 DEG C, and temperature retention time is 150min, then air cooling.The specification of finished product tubing is external diameter 110mm, wall thickness 5.5mm, and mechanical property is Rm>=550MP, A
50>=23%.
Embodiment 2
A production method for TA10 alloy seamless pipe, comprises the following steps:
(1) using electron-beam cold bed furnace melting once to go out specification is 210 × 1050 × 8200mm (thick × wide × long) the TA10 alloy blank that ingot casting composition is Mo0.3%, Ni0.7%, Fe≤0.05%, C≤0.03%, N≤0.03%, H≤0.015%, O≤0.09%, surplus are Ti, blank is placed on milling machine, carry out milling face, the degree of depth in milling face is 5mm, milling face completes and is placed on the excision of sawing machine enterprising wardrobe portion and blank is cut into cross section specification is 210mm × 210mm, length is the square billet of 8100mm, then through 45 ° of chamferings, reconditioning process;
(2) by the square billet after reconditioning, rolling into diameter with bar mill is Φ 130mm, length is the bar of 3000mm, then with lathe, car light is carried out to its surface, defect reconditioning is gone to the bar after car light, clean its surface after reconditioning completes, and carry out 150 DEG C of oven dry, drying time is 120min;
(3) blank material is heated to 920 DEG C, after insulation 420min, roll piercing obtains hollow billet; Tandem rolling is carried out to hollow billet and forms hollow forging;
(4) reconditioning is carried out to waste tube outer surface, then cold mill complex is adopted to carry out cold rolling, cold rolling complete after carry out degreasing, annealing, pickling, straightening processing, and then cold rolling, degreasing, annealing, pickling, straightening processing, so move in circles 3 times, obtain the finished product tubing of required specification, wherein, annealing temperature is 870 DEG C, temperature retention time 50min, then air cooling; So move in circles to the finished product tubing of required specification; Wherein annealing temperature is 870 DEG C, insulation 50min, then air cooling;
(5) finished product tubing is carried out degreasing, finished products, pickling, straightening processing, (Rm>=550MP, A after Performance Detection is qualified
50>=23%), can put in storage, finished products temperature is 720 DEG C, and temperature retention time is 60min, then air cooling, and finished product tubing specification is external diameter Φ 80mm, wall thickness 2.5mm.
Embodiment 3
(1) using electron-beam cold bed furnace melting once to go out specification is 210 × 1050 × 8200mm (thick × wide × long) the TA10 alloy blank that ingot casting composition is Mo:0.35%, Ni:0.6%, Fe≤0.05%, C≤0.03%, N≤0.03%, H≤0.015%, O≤0.09%, surplus are Ti, blank is placed on milling machine, carry out milling face, the degree of depth in milling face is 8mm, milling face completes and is placed on sawing machine enterprising wardrobe portion excision, and blank is cut into cross section specification is 200mm × 200mm, length is the square billet of 8100mm, then through 45 ° of chamferings, reconditioning process;
(2) by the square billet after reconditioning, rolling into diameter with bar mill is Φ 100mm, length is the bar of 550mm, then with lathe, car light is carried out to its surface, defect reconditioning is gone to the bar after car light, clean its surface after reconditioning completes, and dry at 130 DEG C, drying time is 180min;
(3) blank material is heated to 850 DEG C, after insulation 540min, roll piercing obtains hollow billet; Tandem rolling is carried out to hollow billet and forms hollow forging;
(4) reconditioning is carried out to waste tube outer surface, then cold mill complex is adopted to carry out cold rolling, cold rolling complete after carry out degreasing, annealing, pickling, straightening processing, and then cold rolling, degreasing, annealing, pickling, straightening processing, so move in circles 5 times, until obtain the finished product tubing of required specification, wherein, annealing temperature is 860 DEG C, temperature retention time 80min, then air cooling;
(5) finished product tubing is carried out degreasing, finished products, pickling, straightening processing, after Performance Detection is qualified, can put in storage, finished products temperature is 650 DEG C, and temperature retention time is 90min, then air cooling.The specification of finished product tubing is external diameter Φ 30mm, wall thickness 1.0mm.
Electron-beam cold bed furnace of the present invention, bar mill, cold mill complex are prior art equipment, and described milling face, reconditioning, cleaning, oven dry, degreasing, pickling, aligning, oblique milling, tandem rolling etc. all can adopt prior art processes.
The above; it is only preferred embodiment of the present invention; not the present invention imposed any restrictions, everyly according to the technology of the present invention essence, above embodiment simply to be revised, change and the change of equivalent structure, all still belong in the protection domain of technical solution of the present invention.
Claims (4)
1. a production method for TA10 alloy seamless pipe, is characterized in that, described production method comprises the following steps:
(1) electron-beam cold bed furnace melting once is used to go out the TA10 alloy blank that specification is thick 210mm × wide 1050mm × long 8200mm, by blank milling face, the milling face degree of depth is 5 ~ 10mm, topping after milling face completes also cuts into the square billet that cross section specification is 190 ~ 210mm × 190 ~ 210mm, then through chamfering and reconditioning;
(2) the square billet bar mill after reconditioning being rolled into diameter is Φ 60 ~ 130mm, length is the bar of 550 ~ 5500mm, then carries out car light with lathe to its surface, goes defect reconditioning to the bar after car light, carry out surface clean after reconditioning completes, clean post-drying;
(3) bar that step (2) obtains is heated to 850 ~ 920 DEG C, after insulation 360 ~ 540min, adopts roll piercing to obtain hollow billet, hollow billet is carried out tandem rolling and form hollow forging;
(4) reconditioning is carried out to waste tube outer surface, then adopt cold mill complex cold rolling, cold rolling complete after carry out degreasing, annealing, pickling, straightening processing, and then cold rolling, degreasing, annealing, pickling, straightening processing, so move in circles, until obtain the finished product tubing of required specification, wherein, annealing temperature is 850 ~ 870 DEG C, temperature retention time 30 ~ 80min, then air cooling;
(5) finished product tubing is carried out degreasing, finished products, pickling, straightening processing again, after qualified after testing, can put in storage, wherein finished products temperature is 650 ~ 720 DEG C, and temperature retention time is 60 ~ 150min, then air cooling.
2. by the production method of a kind of TA10 alloy seamless pipe according to claim 1, it is characterized in that, the composition quality of the TA10 alloy blank that the electron-beam cold bed furnace melting once described in step (1) obtains is than being Mo0.25 ~ 0.35%, Ni0.6 ~ 0.9%, Fe≤0.20%, C≤0.05%, N≤0.03%, H≤0.015%, O≤0.18%, and surplus is Ti.
3., by the production method of a kind of TA10 alloy seamless pipe according to claim 1, it is characterized in that, the bake out temperature described in step (2) is 120 ~ 150 DEG C, and drying time is 60 ~ 180min.
4., by the production method of a kind of TA10 alloy seamless pipe according to claim 1, it is characterized in that, the external diameter of the finished product tubing described in step (5) is Φ 30 ~ 110mm, and wall thickness is 1.0 ~ 5.5mm; Its mechanical property is Rm>=550MP, A
50>=23%.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619085A (en) * | 2016-02-29 | 2016-06-01 | 扬州诚德钢管有限公司 | Production technology for large-volume steel seamless cylinder with diameter being 914 mm |
| CN106282867A (en) * | 2016-09-05 | 2017-01-04 | 攀钢集团攀枝花钢铁研究院有限公司 | TA2 thin-wall titanium alloy seamless steel pipe and preparation method thereof |
| CN108296717A (en) * | 2018-02-06 | 2018-07-20 | 江苏健力钢管有限公司 | A kind of preparation process of Steel Pipe For Bearing |
| CN110711775A (en) * | 2019-10-26 | 2020-01-21 | 鑫鹏源智能装备集团有限公司 | Titanium alloy pipe manufacturing and forming method |
| CN110899335A (en) * | 2019-12-09 | 2020-03-24 | 西北工业大学 | Short-process manufacturing method of small-caliber marine titanium alloy seamless pipe |
| CN111304461A (en) * | 2020-03-02 | 2020-06-19 | 无锡市千柏材料科技有限责任公司 | Production process of high-quality nickel pipe |
| CN114289539A (en) * | 2021-11-18 | 2022-04-08 | 成都先进金属材料产业技术研究院股份有限公司 | Production method of titanium alloy seamless pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110711775A (en) * | 2019-10-26 | 2020-01-21 | 鑫鹏源智能装备集团有限公司 | Titanium alloy pipe manufacturing and forming method |
| CN110899335A (en) * | 2019-12-09 | 2020-03-24 | 西北工业大学 | Short-process manufacturing method of small-caliber marine titanium alloy seamless pipe |
| CN111304461A (en) * | 2020-03-02 | 2020-06-19 | 无锡市千柏材料科技有限责任公司 | Production process of high-quality nickel pipe |
| CN111304461B (en) * | 2020-03-02 | 2022-08-05 | 无锡市千柏材料科技有限责任公司 | Production process of high-quality nickel pipe |
| CN114289539A (en) * | 2021-11-18 | 2022-04-08 | 成都先进金属材料产业技术研究院股份有限公司 | Production method of titanium alloy seamless pipe |
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