CN107716587A - A kind of processing method of thin-wall titanium alloy pipe - Google Patents
A kind of processing method of thin-wall titanium alloy pipe Download PDFInfo
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- CN107716587A CN107716587A CN201711000316.0A CN201711000316A CN107716587A CN 107716587 A CN107716587 A CN 107716587A CN 201711000316 A CN201711000316 A CN 201711000316A CN 107716587 A CN107716587 A CN 107716587A
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- 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
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- Heat Treatment Of Steel (AREA)
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Abstract
A kind of processing method of thin-wall titanium alloy pipe of specific design of the present invention, including the step of forging, normalizing, tempering, drilling extruding, hot spinning processing and quenching, the processing method of thin-wall titanium alloy pipe of the invention, can reduce the percent defective during titanic alloy machining.
Description
Technical field
The invention belongs to materials processing technology field, and in particular to a kind of processing method of thin-wall titanium alloy pipe.
Background technology
Titanium alloy belongs to light-alloy, has the features such as specific strength is high, specific modulus is high, and structural behaviour is excellent, titanium alloy density
Only the 58% of steel, therefore by extensive with for fields such as oil, chemical industry, space flight.
But because titanium alloy elastic modulus is low, it is big with die steel affinity, easily bond, so machine-shaping is relatively more tired
Difficulty, and limited by processing technology, thin-wall titanium alloy tubing work in-process is yielding so that percent defective and processing cost occupy height
Under not.Such as prepared using traditional hot-extrusion method, due to so far without preferable lubricating system, so being difficult to realize, extruding
The quality of tubing is more difficult to ensure；Such as prepared using roll piercing+cold-rolling process, because oblique rolling perforated process is relatively easy to form table
Planar defect, thus prepared tube surfaces quality it is difficult to ensure that, while such a method be applied to mean wall thickness tube forming,
Then less it is applicable for thin-wall pipes.
The content of the invention
It is an object of the invention to provide a kind of processing method of thin-wall titanium alloy pipe, during can reducing titanic alloy machining
Percent defective.
The technical solution adopted by the present invention is a kind of processing method of thin-wall titanium alloy pipe, specifically to enter as steps described below
OK：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1100~1200 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment；
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 700~750 DEG C, 30~40 minutes are incubated, carries out 4 heat rotations
Pressure processing, obtains hot spinning pipe；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
The features of the present invention also resides in：
Stud progress normalizing concretely comprises the following steps with what is be tempered in step 2, first stud is put into normalizing furnace, normalizing is warming up to
800 ± 10 DEG C, 2-3 hours are incubated, continues normalizing and is warming up to 1200 ± 10 DEG C, be incubated 1-2 hours, be put into back after being air-cooled to room temperature
In stove, tempering is warming up to 750 ± 10 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Every time deflection is not less than 20% when step 4 hot spinning is processed.
Step 4 hot spinning often completes a time rotary pressing processing and carries out a vacuum annealing when processing.
Vacuum annealing temperature is 750 DEG C.
The beneficial effects of the present invention are：
The processing method of the thin-wall titanium alloy pipe of the present invention, can reduce the percent defective during titanic alloy machining.
Embodiment
Below according to embodiment, the present invention is described in detail.
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1100~1200 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 800 ± 10 DEG C, 2-3 hours are incubated, continues normalizing and is warming up to 1200 ± 10 DEG C, be incubated 1-2 hours, be put into after being air-cooled to room temperature
In tempering furnace, tempering is warming up to 750 ± 10 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 700~750 DEG C, 30~40 minutes are incubated, carries out 4 heat rotations
Pressure processing, hot spinning pipe is obtained, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes one when processing
Passage rotary pressing processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Embodiment 1
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1100 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 810 DEG C, 2 hours are incubated, continues normalizing and is warming up to 1210 DEG C, be incubated 1 hour, be put into after being air-cooled to room temperature in tempering furnace, return
Fire is warming up to 740 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 700 DEG C, 30 minutes are incubated, the processing of 4 hot spinnings is carried out, obtains
To hot spinning pipe, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes a time spinning when processing
Processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Embodiment 2
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1200 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 810 DEG C, 3 hours are incubated, continues normalizing and is warming up to 1190 DEG C, be incubated 2 hours, be put into after being air-cooled to room temperature in tempering furnace, return
Fire is warming up to 740 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 750 DEG C, 40 minutes are incubated, the processing of 4 hot spinnings is carried out, obtains
To hot spinning pipe, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes a time spinning when processing
Processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Embodiment 3
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1150 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 800 DEG C, 2.5 hours are incubated, continues normalizing and is warming up to 1200 DEG C, be incubated 1.5 hours, tempering furnace is put into after being air-cooled to room temperature
In, tempering is warming up to 750 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 725 DEG C, 35 minutes are incubated, the processing of 4 hot spinnings is carried out, obtains
To hot spinning pipe, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes a time spinning when processing
Processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Embodiment 4
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1120 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 795 DEG C, 2.2 hours are incubated, continues normalizing and is warming up to 1195 DEG C, be incubated 1-2 hours, tempering furnace is put into after being air-cooled to room temperature
In, tempering is warming up to 745 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 715 DEG C, 33 minutes are incubated, the processing of 4 hot spinnings is carried out, obtains
To hot spinning pipe, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes a time spinning when processing
Processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Embodiment 5
A kind of processing method of thin-wall titanium alloy pipe, is specifically carried out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1150 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment, stud is put into normalizing furnace, normalizing heating
To 805 DEG C, 2.8 hours are incubated, continues normalizing and is warming up to 1205, be incubated 1-2 hours, be put into after being air-cooled to room temperature in tempering furnace,
Tempering is warming up to 755 DEG C, is furnace-cooled to 500 DEG C and comes out of the stove.
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, pass through
Mould drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 740 DEG C, 38 minutes are incubated, the processing of 4 hot spinnings is carried out, obtains
To hot spinning pipe, every time deflection is not less than 20% when hot spinning is processed, and hot spinning often completes a time spinning when processing
Processing carries out a vacuum annealing, and vacuum annealing temperature is 750 DEG C；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
Claims (5)
1. a kind of processing method of thin-wall titanium alloy pipe, it is characterised in that specifically carry out as steps described below：
Step 1, titan alloy casting ingot is forged into stud at a temperature of 1100~1200 DEG C；
Step 2, stud made from step 1 is subjected to normalizing and tempering heat treatment；
Step 3, after the completion of step 2, stud outer wall is coated into lubricant, after by stud with extruder be sent into die cavity, by mould
Drilling is squeezed into thin-wall circular tube；
Step 4, by the thin-wall circular tube that step 4 obtains at 700~750 DEG C, 30~40 minutes are incubated, 4 hot spinnings is carried out and adds
Work, obtain hot spinning pipe；
Step 5, the hot spinning pipe obtained in step 4 is quenched, thin-wall titanium alloy pipe is can obtain after cooling.
A kind of 2. processing method of thin-wall titanium alloy pipe according to claim 1, it is characterised in that titanium in the step 2
Rod carries out normalizing and concretely comprised the following steps with what is be tempered, and first the stud is put into normalizing furnace, and normalizing is warming up to 800 ± 10 DEG C, protects
Warm 2-3 hours, continue normalizing and be warming up to 1200 ± 10 DEG C, be incubated 1-2 hours, be put into after being air-cooled to room temperature in tempering furnace, be tempered
750 ± 10 DEG C are warming up to, 500 DEG C is furnace-cooled to and comes out of the stove.
A kind of 3. processing method of thin-wall titanium alloy pipe according to claim 1, it is characterised in that the step 4 heat rotation
Every time deflection is not less than 20% during pressure processing.
A kind of 4. processing method of thin-wall titanium alloy pipe according to claim 1, it is characterised in that the step 4 heat rotation
A time rotary pressing processing, which is often completed, during pressure processing carries out a vacuum annealing.
A kind of 5. processing method of thin-wall titanium alloy pipe according to claim 4, it is characterised in that the vacuum annealing temperature
Spend for 750 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711000316.0A CN107716587A (en) | 2017-10-24 | 2017-10-24 | A kind of processing method of thin-wall titanium alloy pipe |
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| CN201711000316.0A CN107716587A (en) | 2017-10-24 | 2017-10-24 | A kind of processing method of thin-wall titanium alloy pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961515A (en) * | 2019-11-29 | 2020-04-07 | 上海新力动力设备研究所 | Titanium alloy thin-wall cylinder forming method |
| CN112872736A (en) * | 2021-01-20 | 2021-06-01 | 陕西茂凇新材科技有限公司 | Low-cost Tc4 titanium ring production process |
| CN115383085A (en) * | 2022-08-17 | 2022-11-25 | 鑫鹏源智能装备集团有限公司 | Production process of hot-rolled large-diameter thin-wall titanium alloy seamless pipe |
Citations (5)
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| CN101704035A (en) * | 2009-11-26 | 2010-05-12 | 北京有色金属研究总院 | Processing method of high-strength titanium alloy thin-walled tube stock |
| WO2011017752A1 (en) * | 2009-08-11 | 2011-02-17 | Frontline Australasia Pty. Ltd. | Method of forming seamless pipe of titanium and / or titanium alloys |
| CN104745868A (en) * | 2015-03-27 | 2015-07-01 | 常熟市双羽铜业有限公司 | Thin-wall titanium alloy pipe processing technique |
| CN105643192A (en) * | 2014-11-13 | 2016-06-08 | 李虹 | Processing technology for high-grade titanium alloy pipe used for nuclear power plant |
| CN105665468A (en) * | 2014-11-21 | 2016-06-15 | 北京有色金属研究总院 | Preparation method for high-precision large-diameter thin-walled titanium tube |
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2017
- 2017-10-24 CN CN201711000316.0A patent/CN107716587A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017752A1 (en) * | 2009-08-11 | 2011-02-17 | Frontline Australasia Pty. Ltd. | Method of forming seamless pipe of titanium and / or titanium alloys |
| CN101704035A (en) * | 2009-11-26 | 2010-05-12 | 北京有色金属研究总院 | Processing method of high-strength titanium alloy thin-walled tube stock |
| CN105643192A (en) * | 2014-11-13 | 2016-06-08 | 李虹 | Processing technology for high-grade titanium alloy pipe used for nuclear power plant |
| CN105665468A (en) * | 2014-11-21 | 2016-06-15 | 北京有色金属研究总院 | Preparation method for high-precision large-diameter thin-walled titanium tube |
| CN104745868A (en) * | 2015-03-27 | 2015-07-01 | 常熟市双羽铜业有限公司 | Thin-wall titanium alloy pipe processing technique |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961515A (en) * | 2019-11-29 | 2020-04-07 | 上海新力动力设备研究所 | Titanium alloy thin-wall cylinder forming method |
| CN112872736A (en) * | 2021-01-20 | 2021-06-01 | 陕西茂凇新材科技有限公司 | Low-cost Tc4 titanium ring production process |
| CN115383085A (en) * | 2022-08-17 | 2022-11-25 | 鑫鹏源智能装备集团有限公司 | Production process of hot-rolled large-diameter thin-wall titanium alloy seamless pipe |
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Application publication date: 20180223 |
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