CN111346921A - Production process of titanium alloy TA31 material hot-rolled seamless pipe - Google Patents
Production process of titanium alloy TA31 material hot-rolled seamless pipe Download PDFInfo
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- CN111346921A CN111346921A CN202010173224.8A CN202010173224A CN111346921A CN 111346921 A CN111346921 A CN 111346921A CN 202010173224 A CN202010173224 A CN 202010173224A CN 111346921 A CN111346921 A CN 111346921A
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000004513 sizing Methods 0.000 claims abstract description 24
- 238000000137 annealing Methods 0.000 claims abstract description 11
- 238000009785 tube rolling Methods 0.000 claims abstract description 7
- 238000007689 inspection Methods 0.000 claims abstract description 6
- 230000003064 anti-oxidating effect Effects 0.000 claims abstract description 5
- 230000001680 brushing effect Effects 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000012467 final product Substances 0.000 claims abstract description 5
- 238000004080 punching Methods 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 20
- 239000010936 titanium Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 11
- 238000005098 hot rolling Methods 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- 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
-
- 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
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention relates to the technical field of seamless tube production, and discloses a production process of a titanium alloy TA31 hot-rolled seamless tube, which comprises the following steps: s1, selecting a high-quality titanium alloy pipe rod, punching a through hole, and brushing an anti-oxidation coating; s2, putting the processed titanium rod in the S1 into a heating furnace, wherein the heating rate is 7min/cm, and S3, perforating the titanium rod; s4, rolling the pipe; s5, heating on line; s6, sizing; s7, annealing; s8, hot straightening; s9, sawing; and S10, nondestructive inspection of the final product. The production process of the titanium alloy TA31 hot-rolled seamless tube provided by the invention is used for producing a TA31 titanium alloy seamless tube product by using the production characteristics of a skew tube rolling mill set and the advantages of short process, high efficiency and low cost. The method belongs to the first example in the hot rolling seamless pipe industry, and has no precedent in the technical field of hot rolling titanium alloy.
Description
Technical Field
The invention relates to the technical field of seamless tube production, in particular to a production process of a titanium alloy TA31 hot-rolled seamless tube.
Background
The titanium alloy pipe is a seamless pipe made of titanium alloy material, the titanium alloy can be divided into three types according to the structure, 1, the titanium is added with aluminum and tin elements, 2, the titanium is added with alloy elements such as aluminum, chromium, molybdenum, vanadium and the like, 3, the titanium is added with elements such as aluminum, vanadium and the like, the titanium alloy has higher mechanical property and excellent impact property, the titanium pipe has higher corrosion resistance to chloride, sulfide and ammonia, the titanium alloy can be divided into α alloy, (α + β) alloy and β alloy according to the composition of the phases, China respectively indicates TA, TC and TB.
Disclosure of Invention
The invention aims to provide a production process of a titanium alloy TA31 hot-rolled seamless tube, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a production process of a titanium alloy TA31 hot-rolled seamless tube comprises the following steps:
s1, selecting a high-quality titanium alloy pipe rod, punching a through hole, and brushing an anti-oxidation coating;
s2, putting the titanium rod processed in the S1 into a heating furnace, wherein the heating rate is 7min/cm,
s3, perforating the titanium rod;
s4, rolling the pipe;
s5, heating on line;
s6, sizing;
s7 annealing
S8, hot straightening;
s9, sawing;
and S10, nondestructive inspection of the final product.
Further, the titanium bar blank is selected according to the requirements before A, and the indexes of the titanium bar blank must meet the following requirements: allowable deviation of diameter:
ovality: the diameter tolerance is +/-1 mm; length tolerance: 0 to + 50; end face inclination: not more than 5 mm; curvature: the thickness of each meter is not more than 5 mm.
Preferably, in the heating step of the ring furnace, the heating temperature is not higher than the predetermined maximum temperature by 5 ℃; when the titanium bar blank is transferred to a discharging furnace mouth, closing or closing a burner on the discharging mouth to ensure that the temperature is adjusted to the rolling required temperature; each discharge branch is poured to the bottom of the furnace in time, so that the materials return to the inside of the partition wall; when rolling and discharging, closing the flue gate to ensure that the hearth can ensure the hearth pressure required by rolling; the temperature of each heating section in the annular furnace is set as follows: the preheating section is 500-600 ℃, the heating section I is 600-750 ℃, the heating section II is 750-850 ℃, the heating section III is 850-950 ℃, the heating section IV is 950-1050 ℃, and the tapping temperature is 1050 ℃.
Further, in the tube rolling procedure, the temperature of the rolled pierced billet is 850-950 ℃.
Furthermore, the online heating of 950 ℃ and the heat preservation of 30 minutes are required for ensuring the sizing temperature.
Further, in the sizing step, the temperature of the pierced billet before sizing is 880-900 ℃ and the temperature after sizing is 850-900 ℃.
Further, in the annealing process, the annealing temperature is 950 ℃ and the holding time is 40 minutes.
Further, the bending degree of the steel pipe is less than or equal to 1.0mm after the hot straightening temperature is 500-550 ℃ and the hot straightening process is carried out.
Further, the machine used in the thermal straightening process is a seven-roll straightener.
Through the technical scheme, the production process of the titanium alloy TA31 hot-rolled seamless tube, provided by the invention, is used for producing a TA31 titanium alloy seamless tube product by using the production characteristics of a skew tube rolling mill set and the advantages of short process, high efficiency and low cost. The method belongs to the first example in the hot rolling seamless pipe industry, and has no precedent in the technical field of hot rolling titanium alloy. .
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A production process of a titanium alloy TA31 hot-rolled seamless tube comprises the following steps:
s1, selecting a high-quality titanium alloy pipe rod, punching a through hole, and brushing an anti-oxidation coating;
s2, putting the titanium rod processed in the S1 into a heating furnace, wherein the heating rate is 7min/cm,
s3, perforating the titanium rod;
s4, rolling the pipe;
s5, heating on line;
s6, sizing;
s7 annealing
S8, hot straightening;
s9, sawing;
and S10, nondestructive inspection of the final product.
Wherein, the titanium bar blank is selected according to the requirements before A, and the indexes of the titanium bar blank must meet the following requirements: allowable deviation of diameter:
ovality: the diameter tolerance is +/-1 mm; length tolerance: 0 to + 50; end face inclination: not more than 5 mm; curvature: the thickness of each meter is not more than 5 mm.
In the heating process, the heating temperature of the heating furnace cannot exceed the specified maximum temperature by more than 5 ℃; when the titanium bar blank is transferred to a discharging furnace mouth, closing or closing a burner on the discharging mouth to ensure that the temperature is adjusted to the rolling required temperature; each discharge branch is poured to the bottom of the furnace in time, so that the materials return to the inside of the partition wall; when rolling and discharging, closing the flue gate to ensure that the hearth can ensure the hearth pressure required by rolling; the temperature of each heating section in the annular furnace is set as follows: the preheating section is 500-600 ℃, the heating section I is 600-750 ℃, the heating section II is 750-850 ℃, the heating section III is 850-950 ℃, the heating section IV is 950-1050 ℃, and the tapping temperature is 1050 ℃; in the tube rolling procedure, the temperature of the rolled pierced billet is 850-950 ℃; in order to ensure the sizing temperature, the online heating is carried out at 900 ℃, and the temperature is kept for 30 minutes; in the sizing procedure, the temperature of the pierced billet before sizing is 880-900 ℃, and the temperature after sizing is 850-900 ℃; in the annealing process, annealing treatment is carried out at 950 ℃; the bending degree of the steel pipe after the hot straightening process is less than or equal to 1.0 mm; the machine used in the thermal straightening process is a seven-roller straightening machine.
The specific implementation process comprises the following steps:
firstly, selecting qualified titanium bar billets, wherein the selection standard of the titanium bar billets is as follows: allowable deviation of diameter:
ovality: diameter tolerance ± 1mm, length tolerance: 0- +50, end face cutting slope: no greater than 5mm, tortuosity: each meter is not more than 5 mm; the surface of the tube blank must not have cracks, scabs, folds, slag inclusion, inclusion and hairline cracks, and the surface of the tube blank must not have defects.
Macroscopic observation of tissues: on the test piece of the acid macrostructure of the cross section of the tube blank, white spots, shrinkage cavity residues, layering, impurities, turning and subcutaneous bubbles cannot be seen visually.
Cross sectional dimension and tolerance
D is less than or equal to +/-1 percent, and ovality: (max-min)/2 < 2%, shear slope: less than or equal to 1.7 degrees and not more than 5mm, and the degree of curvature: the rolling curvature of the round pipe blank on the sliding rail is less than or equal to 1.5 mm/m.
2. Measuring and weighing: and weighing and recording the relevant weight data of each qualified titanium bar blank, and simultaneously measuring and recording the length and the outer diameter and merging the measured and recorded data into a raw material library.
3. Cutting and outer diameter processing:
cutting off and blanking according to the size requirement of the tissue production process card according to the requirement of the production product. And simultaneously recording the outer diameter size and the blanking length, carrying out outer diameter machining on the cut tube blank according to the size required by the tissue production process, and carrying out inspection and recording related data.
4. Brushing an anti-oxidation coating after punching a through hole on the titanium bar blank:
5. heating in a ring furnace:
5.1) heating strictly according to a heating schedule, wherein the maximum temperature cannot exceed the specified maximum temperature by more than 5 ℃.
5.2) when the titanium alloy material is transferred to a discharging furnace mouth, closing or closing three burners on the discharging mouth to ensure that the temperature required by rolling is adjusted.
5.3) pouring the furnace bottom in time when discharging one material each time, and returning the materials into the partition wall.
5.4) when rolling and discharging, closing the flue gate to ensure that the hearth can ensure the hearth pressure required by rolling.
5.5) heating the titanium alloy pipe blank according to 7 minutes/cm, and strictly implementing the time from charging to discharging according to the requirements of a heating system.
6. A perforation process:
the perforation process is described as follows:
and in the perforation procedure, the solid titanium bar blank heated to the rolling requirement in the previous procedure is rolled into a hollow capillary tube meeting the next procedure through the perforation process. The temperature of the piercing process was strictly performed as shown in the following table 6-1. The rolling adjustment process parameters were strictly performed as shown in the following table 6-2.
Table 6-1: rolling temperature requirement of piercing mill
Table 6-2: adjusting process parameter requirements of puncher
7. Tube rolling process
Discussion of tube mill process:
the tube rolling process is to make the pierced and rolled tubular billet have uniform wall thickness, expanded diameter and extended in the process, so as to improve the quality of the inner and outer surfaces of the steel tube. Meets the process requirements of the next procedure. The temperature control of the titanium alloy hollow billet in the rolling procedure of the pipe mill refers to a table 7-1, and the rolling process is strictly controlled according to the temperature requirement. The rolling adjustment process control refers to the table 7-2, and the parameters are strictly adjusted according to the rolling process
Table 7-1: rolling temperature parameter of rolling mill
Table 7-2: requirements for adjusting technological parameters of rolling mill
8. On-line heating
In order to ensure the sizing temperature requirement, the temperature of the online electric heating furnace is set to be 900 ℃ for not less than 30 minutes.
9. Sizing process
Discussion of sizing mill procedure
And the sizing mill procedure is to roll the incoming pierced billet rolled in the previous procedure into a final product according to the diameter and the geometric dimension. Meeting the relevant product execution standards. The rolling temperature control of the titanium alloy pierced billet in the sizing procedure refers to a table 8-1, and the process is strictly controlled according to the rolling temperature parameters.
The quality of the product after sizing requires that the outer diameter is +/-1.5 mm, the wall thickness is +/-1.2 mm, the out-of-roundness and the wall thickness do not exceed the allowable deviation of the outer diameter and the wall thickness, and the out-of-roundness and the wall thickness are not 1.50mm and have the out-of-roundness of 1.40 mm.
Table 8-1: temperature technical parameter for fixed diameter rolling
9. Annealing step
In order to ensure the mechanical property of the product, the annealing at 950 ℃ is needed, and the heat preservation treatment is carried out for 40 minutes.
10 thermal straightening process
Discussion of straightening procedure
And the straightening procedure is to straighten the titanium tube after sizing to obtain a qualified product meeting the relevant standard and regulation requirements of a finished product. The bending degree of the steel pipe after straightening is less than or equal to 1.0mm (the bending degree of the full length is not more than 0.10 percent of the full length of the steel pipe). The TA31 product needs to be thermally straightened during the straightening process of the short-run skew rolling process. The straightening temperature is controlled with reference to the relevant temperature design parameters of Table 9-1.
Table 9-1: thermal straightening temperature technical parameter
11. A sawing procedure:
and the sawing step is to convey the straightened titanium alloy pipe to an automatic pipe cutting machine to cut and process two end heads of the titanium alloy pipe. And the standard requirement of a finished product pipe is met.
12. Nondestructive inspection:
non-destructive testing (eddy current): and performing eddy current flaw detection on the cut steel pipe according to standard requirements, and ensuring that the product has no defects of cracks, layering, sand holes, craters and the like. And fill in eddy current flaw detection records.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A production process of a titanium alloy TA31 material hot-rolled seamless tube is characterized by comprising the following steps: the method comprises the following steps:
s1, selecting a high-quality titanium alloy pipe rod, punching a through hole, and brushing an anti-oxidation coating;
s2, putting the titanium rod processed in the S1 into a heating furnace, wherein the heating rate is 7min/cm,
s3, perforating the titanium rod;
s4, rolling the pipe;
s5, heating on line;
s6, sizing;
s7 annealing
S8, hot straightening;
s9, sawing;
and S10, obtaining a final product after nondestructive inspection.
2. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: the titanium bar billet needs to be selected according to requirements before S1, and the indexes of the titanium bar billet must meet the following requirements: allowable deviation of diameter:
ovality: the diameter tolerance is +/-1 mm; length tolerance: 0 to + 50; end face inclination: not more than 5 mm; curvature: the thickness of each meter is not more than 5 mm.
3. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: in the heating process of the annular furnace, the heating temperature cannot exceed the specified maximum temperature by more than 5 ℃; when the titanium bar blank is transferred to a discharging furnace mouth, closing or closing a burner on the discharging mouth to ensure that the temperature is adjusted to the rolling required temperature; each discharge branch is poured to the bottom of the furnace in time, so that the materials return to the inside of the partition wall; when rolling and discharging, closing the flue gate to ensure that the hearth can ensure the hearth pressure required by rolling; the temperature of each heating section in the annular furnace is set as follows: the preheating section is 500-600 ℃, the heating section I is 600-750 ℃, the heating section II is 750-850 ℃, the heating section III is 850-950 ℃, the heating section IV is 950-1050 ℃, and the tapping temperature is 1050 ℃.
4. The apparatus for producing the hot-rolled seamless steel tube made of the titanium alloy TA31 according to claim 1, wherein: in the tube rolling procedure, the temperature of the rolled pierced billet is 850-950 ℃.
5. In order to ensure the sizing temperature requirement, the online electric heating is carried out at 950 ℃ before sizing, and the temperature is kept for at least 30 minutes.
6. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: in the sizing step, the temperature of the pierced billet before sizing is 880-900 ℃, and the temperature after sizing is 850-900 ℃.
7. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: annealing at 950 ℃.
8. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: the temperature of the outer surface of the hot straightening titanium pipe is 500-550 ℃, and the bending degree of the steel pipe after the hot straightening process is less than or equal to 1.0 mm.
9. The production process of the titanium alloy TA31 hot-rolled seamless tube according to claim 1, wherein the production process comprises the following steps: the machine used in the thermal straightening process is a seven-roller straightening machine.
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| CN106540985A (en) * | 2016-11-25 | 2017-03-29 | 鑫鹏源智能装备集团有限公司 | A kind of method that intelligent temperature control produces titanium alloy seamless pipe |
| CN106734328A (en) * | 2016-11-28 | 2017-05-31 | 鑫鹏源智能装备集团有限公司 | A kind of hot rolling large-diameter thin-wall titanium alloy seamless pipe production technology |
| CN106811622A (en) * | 2017-02-09 | 2017-06-09 | 中世钛业有限公司 | A kind of titanium alloy tube for oil and gas transmission and preparation method thereof |
| CN107199243A (en) * | 2017-07-18 | 2017-09-26 | 攀钢集团研究院有限公司 | The production method of heavy caliber titanium seamless tubes |
-
2020
- 2020-03-13 CN CN202010173224.8A patent/CN111346921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107213A (en) * | 2009-12-23 | 2011-06-29 | 鞍钢集团工程技术有限公司 | Production process of petroleum pipe |
| CN104588410A (en) * | 2014-12-19 | 2015-05-06 | 聊城鑫鹏源金属制造有限公司 | Production technology of hot-rolling seamless pipe made of titanium alloy TC4 material |
| CN106540985A (en) * | 2016-11-25 | 2017-03-29 | 鑫鹏源智能装备集团有限公司 | A kind of method that intelligent temperature control produces titanium alloy seamless pipe |
| CN106734328A (en) * | 2016-11-28 | 2017-05-31 | 鑫鹏源智能装备集团有限公司 | A kind of hot rolling large-diameter thin-wall titanium alloy seamless pipe production technology |
| CN106811622A (en) * | 2017-02-09 | 2017-06-09 | 中世钛业有限公司 | A kind of titanium alloy tube for oil and gas transmission and preparation method thereof |
| CN107199243A (en) * | 2017-07-18 | 2017-09-26 | 攀钢集团研究院有限公司 | The production method of heavy caliber titanium seamless tubes |
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Application publication date: 20200630 |