CN110340172A - A kind of method that titanium alloy thin wall profile squeezes compound near-net-shape - Google Patents
A kind of method that titanium alloy thin wall profile squeezes compound near-net-shape Download PDFInfo
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- CN110340172A CN110340172A CN201910634636.4A CN201910634636A CN110340172A CN 110340172 A CN110340172 A CN 110340172A CN 201910634636 A CN201910634636 A CN 201910634636A CN 110340172 A CN110340172 A CN 110340172A
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- titanium alloy
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- hydrogen
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 28
- 150000001875 compounds Chemical class 0.000 title claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 30
- 238000001125 extrusion Methods 0.000 claims abstract description 29
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 150000003608 titanium Chemical class 0.000 claims abstract description 14
- 238000006356 dehydrogenation reaction Methods 0.000 claims abstract description 13
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000005488 sandblasting Methods 0.000 claims description 4
- 239000012300 argon atmosphere Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- 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
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/06—Extraction of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
Abstract
The invention belongs to technical field of material formation, and in particular to a kind of method that titanium alloy thin wall profile squeezes compound near-net-shape, including the following steps: titanium alloy blank S1, is set hydrogen；S2, by hydrogenated titanium alloy blank extrusion molding；S3, extrudate rolling is shaped to rolled-section；S4, rolled-section is done into annealing and dehydrogenation.The present invention, which passes through hot stressing technique, reduces titanium alloy forming temperature, improves titanium alloy plasticity, completes large deformation using extrusion molding, rolling shaping completion thickness is thinned and surface finish.The near-net-shape of titanium alloy thin wall profile may be implemented in the present invention, and solution prior art material utilization rate is low, the problem of high production cost.The present invention is used for the compound near-net-shape of extrusion-rolling of titanium alloy thin wall profile.
Description
Technical field
The invention belongs to technical field of material formation, and in particular to a kind of compound near-net-shape of titanium alloy thin wall profile extrusion-rolling
Method.
Background technique
Titanium alloy thin wall profile has boundless application prospect in aerospace field, but fabricates at high cost
Its extensive use is seriously restricted, near-net-shape is the important way for reducing manufacturing cost.The advantages of extrusion process, is, squeezes temperature
Degree can be in TpMore than (titanium alloy phase transition temperature), at this moment titanium alloy plasticity is good；Blank completes deformation under three-dimensional compressive stress
Molding condition is good, and forming efficiency is high, can complete most of deflection；But since profile wall thickness is unable to reach requirement, and table
Surface roughness is poor；Extrusion molding must carry out anti-oxidation and deformation lubrication, lubricant using glass lubricant also influences surface matter
Amount；Therefore, near-net-shape cannot be completed only by extruding.Since titanium alloy plasticity is poor, there is forming, passage is more, face checking
The problems such as, the thin-wall section of titanium alloy blank processing growth is also difficult to realize only by milling method.The prior art is main
To be machined out to obtain titanium alloy thin wall profile to titanium alloy extrudate, be not carried out the inexpensive near net of titanium alloy at
Shape, stock utilization is low, high production cost.
Summary of the invention
In view of the above technical problems, a kind of method of compound near-net-shape of titanium alloy thin wall profile extrusion drawing is provided,
Solve the problems, such as that prior art material utilization rate is low, high production cost.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of one method that titanium alloy thin wall profile squeezes compound near-net-shape, including the following steps:
S1, titanium alloy blank is set into hydrogen；
S2, by hydrogenated titanium alloy blank extrusion molding；
S3, extrudate rolling is shaped to rolled-section；
S4, rolled-section is done into annealing and dehydrogenation.
The method that titanium alloy blank sets hydrogen in the S1 is that titanium alloy blank is placed in hydrogen furnace, is evacuated down to 10-3Pa,
With 2~20 DEG C of min-1Speed be heated to setting hydrogen temperature, high-purity hydrogen is placed in hydrogen furnace to setting, after hydrogen partial pressure tends to balance in furnace
1~5h is kept the temperature, with 10 DEG C of min-1Speed be cooled to room temperature, obtain hydrogenated titanium alloy blank.
The method of hydrogenated titanium alloy blank extrusion molding is that opposed hydrogen titanium alloy blank carries out painting glass lubrication in the S2
Agent processing, by hydrogenated titanium alloy blank heating to extrusion molding temperature, the extrusion molding temperature is titanium alloy phase transition temperature
Above 50~150 DEG C, opposed hydrogen titanium alloy blank completes extrusion molding on extruder, obtains extrudate, and extrusion speed is
50~300mm/s, extrusion ratio are 8~40.
The method that shaping is rolled in the S3 is that extrudate is carried out to sandblasting, pickling processes, removal watch crystal lubrication
Agent prevents profile when subsequent rolling from skidding, is heated to rolling temperature to extrudate under argon atmosphere, rolling temperature is
Titanium alloy phase transition temperature ± 50 DEG C, complete roll forming on milling train, extrudate are transported to milling train and in the operation of rolling
In to extrudate Argon gas shielded, reduction ratio is 5~25% per pass, and mill speed control obtains thickness in 2~20mm/s
With the rolled-section of surface quality composite demand, total deformation amount controlling is 20~70%.
It anneals in the S4 and the method for dehydrogenation is to be placed in after rolled-section surface cleaning in vacuum dehydrogenation furnace,
It is evacuated down to 10-3Pa, with 2~20 DEG C of min-1Speed be heated to 650~850 DEG C of dehydrogenation temperature, in furnace vacuum degree be higher than 3 ×
10-31~3h is kept the temperature after Pa, with 10 DEG C of min-1Speed be cooled to room temperature, obtain near-net-shape profile.
Compared with prior art, the present invention having the beneficial effect that
The present invention reduces titanium alloy forming temperature by hot stressing technique, titanium alloy plasticity is improved, using extrusion molding
Large deformation is completed, rolling shaping completion thickness is thinned and surface finish.The near net of titanium alloy thin wall profile may be implemented in the present invention
Forming, solution prior art material utilization rate is low, the problem of high production cost.
Detailed description of the invention
Fig. 1 is near-net-shape flow diagram of the present invention；
Fig. 2 is that blank of the present invention sets hydrogen process schematic representation；
Fig. 3 is extrusion molding schematic diagram of the present invention；
Fig. 4 is roll forming schematic diagram of the present invention；
Fig. 5 is dehydrogenation process schematic diagram of the present invention；
Wherein: 100 be titanium alloy blank, and 101 be hydrogenated titanium alloy blank, and 102 be extrudate, and 103 be rolled-section,
104 be near-net-shape profile, and 2-1 is to set hydrogen furnace body, and 2-2 is pumped vacuum systems, and 2-3 is high-purity hydrogen filling syst, and 2-4 is temperature control
System, 3-1 are glass lubricant spray equipment, and 3-2 is to squeeze heating furnace, and 3-3 is extrusion cylinder, and 3-4 is pressure ram, and 3-5 is crowded
Compression mould, 4-1 are sandblasting acid dip pickle, and 4-2 is rolling heating furnace, and 4-3 is milling train, and 4-4 is argon gas.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
S1, blank set hydrogen: as shown in Fig. 2, titanium alloy blank 100 is placed in hydrogen furnace, being evacuated down to 10-3Pa, with 2~
20℃min-1Speed be heated to setting hydrogen temperature, a certain amount of high-purity hydrogen is placed in hydrogen furnace to setting, hydrogen partial pressure tends to be flat in furnace
1~5h is kept the temperature after weighing apparatus, with 10 DEG C of min-1Speed be cooled to room temperature, obtain hydrogenated titanium alloy blank 101.
S2, hydrogenated titanium alloy blank extrusion molding:
2.1, it carries out applying glass lubricant processing by the opposed hydrogen titanium alloy blank 101 of glass lubricant spray equipment 3-1；
2.2, hydrogenated titanium alloy blank 101 is heated to squeezing temperature, extrusion molding temperature is titanium alloy phase transition temperature
Above 50~150 DEG C；
2.3, opposed hydrogen titanium alloy blank 101 completes extrusion molding on extruder, and hydrogenated titanium alloy blank 101 is packed into
Extrusion cylinder 3-3 obtains extrudate 102 by extrusion die 3-5 under pressure ram 3-4 effect, and extrusion speed is 50~
300mm/s, extrusion ratio are 8~40.
S3, extrudate rolling is shaped to rolled-section:
3.1, extrudate 102 is subjected to sandblasting, pickling processes, watch crystal lubricant is removed, when preventing subsequent rolling
Profile skids；
3.2, rolling temperature is heated to extrudate 102 under argon atmosphere, rolling temperature turns for titanium alloy phase
Temperature ± 50 DEG C；
3.3, roll forming is completed on milling train, extrudate 102 is transported to milling train and during the rolling process to extruding
102 Argon gas shielded of profile, reduction ratio is 5~25% per pass, and mill speed is controlled in 2~20mm/s；
3.4,3.2 and 3.3 are repeated, the rolled-section 103 of thickness and surface quality composite demand, total deflection control are obtained
System is 20~70%；
S4, annealing and dehydrogenation: it after 103 surface cleaning of rolled-section, is placed in vacuum dehydrogenation furnace, is evacuated down to
10-3Pa, with 2~20 DEG C of min-1Speed be heated to dehydrogenation temperature, in furnace vacuum degree be higher than 3 × 10-31~3h is kept the temperature after Pa, with
10℃min-1Speed be cooled to room temperature, obtain near-net-shape profile 104.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention each
Kind variation, various change should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of method that titanium alloy thin wall profile squeezes compound near-net-shape, it is characterised in that: include the following steps:
S1, titanium alloy blank is set into hydrogen；
S2, by hydrogenated titanium alloy blank extrusion molding；
S3, extrudate rolling is shaped to rolled-section；
S4, rolled-section is done into annealing and dehydrogenation.
2. the method that a kind of titanium alloy thin wall profile according to claim 1 squeezes compound near-net-shape, it is characterised in that:
The method that titanium alloy blank sets hydrogen in the S1 is that titanium alloy blank (100) is placed in hydrogen furnace, is evacuated down to 10-3Pa, with 2
~20 DEG C of min-1Speed be heated to setting hydrogen temperature, high-purity hydrogen is placed in hydrogen furnace to setting, hydrogen partial pressure is protected after tending to balance in furnace
1~5h of temperature, with 10 DEG C of min-1Speed be cooled to room temperature, obtain hydrogenated titanium alloy blank (101).
3. the method that a kind of titanium alloy thin wall profile according to claim 1 squeezes compound near-net-shape, it is characterised in that:
The method of hydrogenated titanium alloy blank extrusion molding is that opposed hydrogen titanium alloy blank (101) apply at glass lubricant in the S2
Hydrogenated titanium alloy blank (101) is heated to extrusion molding temperature by reason, and the extrusion molding temperature is titanium alloy phase transition temperature
Above 50~150 DEG C, opposed hydrogen titanium alloy blank (101) completes extrusion molding on extruder, obtains extrudate (102),
Extrusion speed is 50~300mm/s, and extrusion ratio is 8~40.
4. the method that a kind of titanium alloy thin wall profile according to claim 1 squeezes compound near-net-shape, it is characterised in that:
The method that shaping is rolled in the S3 is that extrudate (102) are carried out sandblasting, pickling processes, removes watch crystal lubricant,
It prevents profile when subsequent rolling from skidding, rolling temperature, rolling temperature is heated to extrudate (102) under argon atmosphere
For titanium alloy phase transition temperature ± 50 DEG C, roll forming is completed on milling train, and extrudate (102) is transported to milling train and is being rolled
To extrudate (102) Argon gas shielded during system, reduction ratio is 5~25% per pass, mill speed control 2~
20mm/s obtains the rolled-section (103) of thickness and surface quality composite demand, and total deformation amount controlling is 20~70%.
5. the method that a kind of titanium alloy thin wall profile according to claim 1 squeezes compound near-net-shape, it is characterised in that:
It anneals in the S4 and the method for dehydrogenation is to be placed in after rolled-section (103) surface cleaning in vacuum dehydrogenation furnace, take out true
Sky is to 10-3Pa, with 2~20 DEG C of min-1Speed be heated to 650~850 DEG C of dehydrogenation temperature, in furnace vacuum degree be higher than 3 × 10-3Pa
1~3h is kept the temperature, afterwards with 10 DEG C of min-1Speed be cooled to room temperature, obtain near-net-shape profile (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634636.4A CN110340172A (en) | 2019-07-15 | 2019-07-15 | A kind of method that titanium alloy thin wall profile squeezes compound near-net-shape |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910634636.4A CN110340172A (en) | 2019-07-15 | 2019-07-15 | A kind of method that titanium alloy thin wall profile squeezes compound near-net-shape |
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| CN110340172A true CN110340172A (en) | 2019-10-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845648A (en) * | 2020-12-23 | 2021-05-28 | 西部新锆核材料科技有限公司 | Preparation method of titanium or titanium alloy extrusion rolling thin-wall section |
| CN116752059A (en) * | 2023-08-17 | 2023-09-15 | 太原科技大学 | Titanium alloy surface self-nanocrystallization method and product |
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| CN104235517A (en) * | 2014-09-03 | 2014-12-24 | 钢铁研究总院 | Corrosion-resisting titanium-steel compound pipe and preparation method thereof |
| CN108580884A (en) * | 2018-07-11 | 2018-09-28 | 南京尚吉增材制造研究院有限公司 | Hydrogen roll compacting combination process is set for improve increasing material manufacturing titanium alloy tissue |
| CN108907619A (en) * | 2018-07-19 | 2018-11-30 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of titanium alloy thin wall precision profile combined machining method |
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2019
- 2019-07-15 CN CN201910634636.4A patent/CN110340172A/en active Pending
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| CN112845648A (en) * | 2020-12-23 | 2021-05-28 | 西部新锆核材料科技有限公司 | Preparation method of titanium or titanium alloy extrusion rolling thin-wall section |
| CN116752059A (en) * | 2023-08-17 | 2023-09-15 | 太原科技大学 | Titanium alloy surface self-nanocrystallization method and product |
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Application publication date: 20191018 |
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