CN108213438A - A kind of titanium alloy high-strength direct rack processing method - Google Patents
A kind of titanium alloy high-strength direct rack processing method Download PDFInfo
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- CN108213438A CN108213438A CN201810273873.8A CN201810273873A CN108213438A CN 108213438 A CN108213438 A CN 108213438A CN 201810273873 A CN201810273873 A CN 201810273873A CN 108213438 A CN108213438 A CN 108213438A
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 50
- 238000003672 processing method Methods 0.000 title claims description 16
- 239000000843 powder Substances 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 46
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 35
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 35
- 239000010936 titanium Substances 0.000 claims abstract description 34
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- 239000004411 aluminium Substances 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000470 constituent Substances 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002604 ultrasonography Methods 0.000 claims abstract description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 19
- 238000000498 ball milling Methods 0.000 claims description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 229910002651 NO3 Inorganic materials 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000011777 magnesium Substances 0.000 claims description 8
- 239000011812 mixed powder Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical group CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 235000013877 carbamide Nutrition 0.000 claims description 6
- 230000000399 orthopedic effect Effects 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910001868 water Inorganic materials 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 4
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 229910001315 Tool steel Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000036632 reaction speed Effects 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- CYKMNKXPYXUVPR-UHFFFAOYSA-N [C].[Ti] Chemical compound [C].[Ti] CYKMNKXPYXUVPR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 238000000304 warm extrusion Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/002—Carbon nanotubes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of titanium alloy high-strength direct rack molding field, the method machining titanium alloy high-strength direct rack being combined more particularly, to a kind of Titanium Powder powder material for adding titanium carbide carbon nanotube particle in the case where ultrasound is imported by continuous rotary squeezing equal channel angular severe plastic deformation drawing forming.Titanium Powder powder material of the present invention is using titanium, aluminium, molybdenum and vanadium as constituent element, and composition can be represented with aTi bAL cMo dV, wherein a：83 89, b：58, c：13, d：69 and a+b+c+d=100.Titanium alloy high-strength direct rack with nanometer crystal microstructure, is characterized in that：It is continuous rotary squeezing equal channel angular drawing forming technique to be assisted to prepare high intensity rack to add the vibration of the titanium alloy powder composite ultraphonic of titanium carbide carbon nanotube particle.Therefore, the present invention proposes a kind of method machining titanium alloy high-strength direct rack being combined by severe plastic deformation with forming, can be applied to aerospace, industrial robot field.
Description
Technical field
The present invention relates to a kind of titanium alloy high-strength direct rack molding field, more particularly, to a kind of addition titanium carbide-carbon
The Titanium Powder powder material of nanotube particle is become in the case where ultrasound is imported by the violent plasticity of continuous rotary squeezing-equal channel angular
The method machining titanium alloy high-strength direct rack that shape-drawing forming is combined.
Background technology
At present, the production of most spur rack is mostly using numerical control mold grinding or Gear Milling method, but it has
Many defects, such as：Stock utilization is low, rack poor mechanical property, of high cost, and processing efficiency is low.With the development of mechanical industry
With intensifying for international competition, the reduction of raising and processing cost to the performance of spur rack product proposes higher requirement, especially
The raising of its processing efficiency.Therefore the extruding of spur rack and forging and molding technology are paid attention to and are developed.Such processing method
More than 70% is increased to by the stock utilization of original traditional handicraft processing method 40%, and spur rack intensity also improves 20%, and
And processing efficiency improves about 40%, but such processing method, using single-piece production processing method, processing efficiency needs into one
The promotion of step.Simultaneously with the development of the high-end equipment manufacture in China, especially exploitation is with high intensity, high abrasion, high life
Secret lathe and robot precision speed reduction device are very necessary with spur rack, at present the spur rack service life low directly affect high-end equipment
Manufacturing fast development.
Titanium is a kind of important structural metal to grow up the 1950s, and titanium alloy is because high, anti-corrosion with intensity
The features such as property is good, heat resistance is high and be widely used in every field.Titanium-based can be made by adding other elements in titanium
Alloy and composite material.Titanium Powder powder material is mainly used for making aircraft engine compressor part, is secondly rocket, guided missile
With the structural member of high-speed aircraft and spacecraft etc., as aerospace structure part material, the titanium alloy powder strength of materials is proposed
Higher requirement, to material, external macro-mechanical property has great influence, general material to the internal microstructure of usual material
The grain structure of material is more tiny, the intensity higher of material, therefore obtains the Titanium Powder powder material with nanometer crystal microstructure very
Necessity, the transmission parts on rocket, guided missile and high-speed aircraft are essential, therefore are developed a kind of for aerospace
Titanium alloy high-strength direct rack is very necessary.
Invention application No. is 2010101887620 proposes the hollow length of continuous rotary extrusion forming on horizontal extruder
Then continuous rotary extrusion forming part is cut into spur rack finished parts, the invention by strip gear tubes using the method for wire cutting
Production efficiency is higher, and can improve the mechanical property and processing performance of spur gear；Application No. is 2014101105335 hairs
It is bright to propose a kind of warm-extrusion forming method of highly-efficient processing 20CrNiMo spur racks, rack production efficiency is significantly improved,
It is successfully applied to shield machine equipment at present.But exploitation high-quality there is high intensity, high abrasion, the aerospace of high life to use
Driving parts have more potential use value and development prospect.To improve the intensity of spur rack, obtaining longer straight of service life
Rack provides a kind of Titanium Powder powder material for adding titanium carbide-carbon nanotube particle under ultrasonic wave added by continuously rotating
The method machining titanium alloy high-strength direct rack that extruding-equal channel angular severe plastic deformation-drawing forming is combined, the present invention
Titanium Powder powder material is using titanium, aluminium, molybdenum and vanadium as constituent element, and composition can be represented with aTi-bAL-cMo-dV, wherein a：83-89,
b：5-8, c：1-3, d：6-9 and a+b+c+d=100.Titanium alloy high-strength direct rack with nanometer crystal microstructure, special character
It is：It is waited logical with adding titanium carbide-the titanium alloy powder composite ultraphonic vibration of carbon nanotube particle assists continuous rotary squeezing-
Road corner drawing forming technique prepares high intensity rack.Therefore, the present invention proposes a kind of by severe plastic deformation and forming
The method machining titanium alloy high-strength direct rack being combined, can be applied to aerospace, industrial robot field.
Invention content
The purpose of the present invention is：To improve the intensity of rack, improving the service life of spur rack, a kind of addition carbonization is provided
The Titanium Powder powder material of titanium-carbon nanotube particle is acutely moulded under ultrasonic wave added by continuous rotary squeezing-equal channel angular
The technique machining titanium alloy high-strength direct rack that property deformation-drawing forming is combined.
The Titanium Powder powder material of addition titanium carbide-carbon nanotube particle proposed by the present invention passes through company under ultrasonic wave added
The process program that the method that continuous rotary squeezing-equal channel angular severe plastic deformation-drawing forming is combined prepares spur rack is：
For the provided Titanium Powder powder material of invention using titanium, aluminium, molybdenum and vanadium as the powder mixture of constituent element, composition can use aTi-
BAL-cMo-dV expressions, wherein a：83-89, b：5-8, c：1-3, d：6-9 and a+b+c+d=100, by mechanization ball-milling method into
The processing of row granularity refinement finally obtains the superfine Ti AlMoV metal mixture powder that average particle size is 40 nanometers -100 nanometers
Particle；Titanium carbide after refinement-carbon nanotube superfine powder and TiAlMoV metal mixeds composition granule is equal by certain mass percent
Even mixing forms the mixed-powder of 1% titanium carbide-carbon nanotube+99%TiAlMoV, then carries out continuous rotary squeezing-wait channels
The method that corner severe plastic deformation-drawing forming is combined obtains titanium alloy rack-plate needed for the present invention.With nanocrystalline group
The titanium alloy high-strength direct rack knitted, is characterized in that：It is with high-strength titanium alloy or Ti, Al, Mo, V series titanium alloy powder
Composite ultraphonic vibration assists continuous rotary squeezing-equal channel angular drawing forming technique to prepare.
The present invention provides a kind of above-mentioned titanium alloy high-strength direct rack preparation method with nanometer crystal microstructure, specific to prepare
Step：
It is prepared by step 1, titanium nitride-carbon nanotube superfine powder：It is by following calcium metal Ca, magnesium to prepare carbon nanotube powder first
Mg, copper Cu, aluminium Al, nickel and cobalt and water H2The nitrate solution of O, composition proportion are 1：1：1：1：1：1：11, it will be above-mentioned
The aqueous solution that the aqueous solution and sodium hydrate content that nitrate solution, nitric acid content are 60% are 40% is by quality 1:1:1 ratio is mixed
It closes uniformly, sediment is filtered acquisition, is subsequently placed in vacuum drying chamber in 550 DEG C, calcine 18 hours, then in ball milling
It is catalysts that ball milling, which is 20 μm of superfines, in machine, powder prepared by the above method is placed in steel reactor, Xiang Gang
It is 9 that volume ratio is blown into reactor:1 propylene and the mixed gas of nitrogen, the pressure of body are 0.05-0.3Mpa, gas flow
For 0.4 m3/ Min, nitrogen are diluent, and for reaction speed and the powder speed of growth, reaction temperature is 660 DEG C, reaction
Time is 60 Min, and carbon nanotube dry powder is made, by ball milling dry powder is obtained ultra-fine carbon nanotube dry powder for 24 hours, finally
To the superfines particle that average particle size is 40 nanometers -100 nanometers；Next prepares titanium nitride powder, by titanium valve and carbamide
CO(NH2)2It is 1 according to quality:1 ratio is uniformly mixed, and under protection of argon gas using mechanization ball-milling method 24 hours, makes titanium valve
It reacts with carbamide, prepares titanium nitride powder product, by ball milling titanium nitride is obtained ultra-fine titanium nitride for 24 hours does
Powder finally obtains the superfines particle that average particle size is 40 nanometers -100 nanometers；Finally by carbon nanotube powder and nitridation
Titanium powder is according to quality 1：1 proportioning is uniformly mixed, and titanium nitride obtained-carbon nanotube mixture particle is passed through ball milling 24 hours
Obtain ultra-fine titanium nitride-carbon nanotube superfine mix powder；
Step 2, titanium alloy high-strength tooth strip material basis material powder mixture, which prepares chemical analysis and weight percent, is
Using titanium, aluminium, molybdenum and vanadium as constituent element, composition can be represented with aTi-bAL-cMo-dV, wherein a：83-89, b：5-8, c：1-3, d：
6-9 and a+b+c+d=100, by mechanization ball-milling method carry out granularity refinement processing, finally obtain average particle size for 40 nanometers-
100 nanometers of ultra-fine titanium-based metal mixture superfine powder；
Step 3, by the titanium nitride after refinement-carbon nanotube superfine powder and titanium-based metal mixture superfine powder with weight ratio
1：99 ratio is mixed；
Step 4, composite ultraphonic vibrate continuous rotary squeezing-equal channel angular severe plastic deformation-drawing forming process：Luffing
Bar vibration frequency 20-100kHz, 10-100 μm of amplitude, 10-50 millimeters away from main drive roll wheel axis of tool heads, by continuously rotating
Pressurizing unit realizes the continuous severe plastic deformation of powder, provides driving power by drive roller wheel, promotes titanium alloy mixed powder
End bites continuous rotary squeezing-equal channel angular deforming moulds, and mixed-powder material drives in continuous rotary squeezing drive roller wheel
Under across continuous rotary squeezing mold cavity, continuous rotary squeezing is occurred by main drive roll wheel drive and equal channel angular is violent
Plastic deformation, the actuating speed of main drive roll wheel is 15-30r/min, and deformation temperature is set as 25 DEG C of room temperature, and continuous rotation is squeezed
Pressure-equal channel angular deformation technique process realizes automation, can both provide driving force for blank, and main drive roll wheel
Using also ensuring scantling precision；In addition, when blank passes through mold cavity, pure shear shear deformation occurs for material, is not having
In the case of changing material cross-section product, the high strengthening and grain ultrafining of material severe plastic deformation are realized；Extrusion
The material head of rack-plate is connected by the steel wire tow line of steel wire clamp and draw-off gear, is then pulled up in rope traction drop-down,
Obtain the rack material of high strengthening and nanosizing；
Step 5, drawing orthopaedic procedures：Draw-off gear under the tractive force of 600-900KN, by high-strength tooth strip material material into
Row drawing is orthopedic；
Step 6 obtains spur rack：The straight-tooth strip material of longer dimension is obtained, then wire cutting finally shapes spur rack finished product
Part, the process can realize higher spur rack processing efficiency.
Calcium metal Ca, magnesium Mg, copper Cu, aluminium Al, nickel and cobalt and water H in above-mentioned preparation method2The nitrate solution of O,
Composition proportion is 1：1：1：1：1：1：11.
Nitrate solution, nitric acid and sodium hydrate aqueous solution are according to quality 1 in above-mentioned preparation method：1：The mixing of 1 ratio is equal
It is even, sediment is filtered acquisition, is subsequently placed in vacuum drying chamber in 550 DEG C, calcining 18 hours, then in the ball mill
The superfines that ball milling is 20 μm is catalysts.
The present invention is characterized in that the titanium alloy powder composite ultraphonic vibration using addition titanium carbide-carbon nanotube particle is auxiliary
Continuous rotary squeezing-equal channel angular drawing forming technique machining titanium alloy high-strength direct rack is helped, mixed-powder can be improved
Plastic deformation ability, the mistake that the continuous rotary squeezing of composite ultraphonic-equal channel angular severe plastic deformation is combined with-drawing forming
Cheng Zhong, supersonic generator connect vibration unit by signal transmssion line, and energy converter is connected with ultrasonic transformer, and ultrasonic transformer is ined succession work again
Has head, the two is connected by studs, and the ultrasonic vibration of tool heads imports point and squeezed in the continuous rotation of main drive roll wheel generation
Pressure-equal channel angular severe plastic deformation is consolidated with-drawing forming region, vibration unit by positioning fixture and main drive roll wheel
It is fixed, it is pressed on mixture of powders jacket to be deformed, first waits to become by ultrasonic delivery from around main drive roll wheel by tool heads
In shape mixture of powders；10-50 millimeters away from main drive roll wheel axis of tool heads；The tool heads are horizontal by 30 ° -70 °
Angle；Spherical surface is made in the tool end surface, and material is tool steel, titanium alloy or hard alloy.
A kind of titanium alloy high-strength direct rack processing method, it is characterized in that being to squeeze traditional continuous rotation
Pressure, equal channel angular severe plastic deformation, drawing forming and composite ultraphonic vibration high pressure torsion are combined together, and can improve mixing
The plastic deformation ability of powder turns round pressure procedure parameter, it can be achieved that the different degrees of company of matrix powder material by appropriate adjustment
Continuous severe plastic deformation.
A kind of titanium alloy high-strength direct rack processing method, it is characterized in that being that composite ultraphonic vibrates high pressure torsion
In the process, supersonic generator connects vibration unit by signal transmssion line, and energy converter is connected with ultrasonic transformer, and ultrasonic transformer is ined succession again
Tool heads, the two are connected by studs, and the ultrasonic vibration of tool heads imports continuous rotary squeezing of the point near pressure head
Region, vibration unit are fixed by positioning fixture and main drive roll wheel, the continuous rotation being pressed on where powder deformation to be deformed
On extruding-equal channel angular channel, by tool heads around main drive roll wheel first by ultrasonic delivery mixture of powders to be deformed
It is interior；10-50 millimeters away from main drive roll wheel axis of tool heads；The tool heads are horizontal by 30 ° of -70 ° of angles；Described
Spherical surface is made in tool end surface, and material is tool steel, titanium alloy or hard alloy.
A kind of titanium alloy high-strength direct rack processing method, it is characterized in that being that composite ultraphonic vibration high pressure is turned round
Turn, material internal atom active can be improved, effectively reduce the torque of continuous rotating extrusion device, improve material deformation extent,
Improve extrusion quality, the forming of difficult deformation dusty material provides new way.
The present invention assists continuous rotation using the titanium alloy powder composite ultraphonic vibration of addition titanium carbide-carbon nanotube particle
Extruding-equal channel angular drawing forming machining titanium alloy high-strength direct rack, device by ultrasonic generator, continuous rotary squeezing-
Equal channel angular lane device, rack forming mouth mold and corresponding drawing orthopedic appliance appurtenances with prestressing force pressing sleeve
Steel wire clamp and titanium alloy rope composition.
The beneficial effects of the invention are as follows：Using such scheme, using the Titanium Powder of addition titanium carbide-carbon nanotube particle
Last composite ultraphonic vibration assists continuous rotary squeezing-equal channel angular drawing forming machining titanium alloy high-strength direct rack, realizes
The high strengthening and nanosizing of rack material severe plastic deformation are squeezed out by the drawing of tooth form mouth mold, obtain high-strength tooth strip material；
It is orthopedic that high-strength tooth strip material material is subjected to drawing；Finally：Obtain longer dimension straight-tooth strip material, then wire cutting finally into
Shape spur rack finished parts.Straight-tooth the strip material shape of cross section and size in drawing process do not change, and this method can be realized
The microstructure nanosizing of spur rack, so as to obtain the high-strength direct rack of function admirable.Turn in continuous rotary squeezing-wait channels
The continuous rotary squeezing drawing deformation of spur rack is realized on angular deformation device basic by die extrusion, both realizes spur rack
The nanosizing of material metal, and the labor intensity for manipulating worker is alleviated, widen the application range of spur rack.
Description of the drawings：
Here is that specific embodiments of the present invention are described in detail in conjunction with the accompanying drawings and embodiments.
Fig. 1 is that powder composite ultraphonic vibration of the present invention assists continuous rotary squeezing-equal channel angular drawing forming technique dress
Put schematic diagram；
Fig. 2 high-strength direct rack process schematic diagrames；
Fig. 3 stretches true stress-true strain curve for high intensity rack sample.
Label in above-mentioned figure for：
Fig. 1 assists continuous rotary squeezing-equal channel angular drawing forming process device figure for powder composite ultraphonic of the present invention vibration
1. continuous rotary squeezings-equal channel angular channel deformation draw-off gear main drive roll wheel, 2. continuous rotary squeezing materials,
3. mouth mold prestressing force lasso, 4. tooth form mouth molds, 5. high-strength tooth strip materials, 6. clamps, 7. titanium alloy cords, 8. slots envelope die holder,
9. powder feed bucket, 10. ultrasonic transformers, 11. tool heads, 12. supersonic generators, 13. control panels, 14. energy converters.
Specific embodiment
Embodiment 1, a kind of titanium alloy high-strength direct rack processing method
It is by following calcium metal Ca, magnesium Mg, copper Cu, aluminium Al, nickel and cobalt and water H the method comprises the steps of firstly, preparing carbon nanotube powder2O
Nitrate solution, composition proportion is 1：1：1：1：1：1：11, by above-mentioned nitrate solution, the water that nitric acid content is 60%
Solution and the aqueous solution that sodium hydrate content is 40% press quality 1:1:1 ratio is uniformly mixed, and sediment is filtered acquisition,
It is subsequently placed in vacuum drying chamber in 550 DEG C, calcines 18 hours, the superfines that then ball milling is 20 μm in the ball mill is anti-
Catalyst is answered, powder prepared by the above method is placed in steel reactor, it is 9 that volume ratio is blown into steel reactor:1 propylene
With the mixed gas of nitrogen, the pressure of body is 0.05-0.3Mpa, and gas flow is 0.4 m3/ Min, nitrogen are diluent, are used for
Reaction speed and the powder speed of growth.Reaction temperature is 660 DEG C, and the reaction time is 60 Min, and carbon nanotube dry powder is made,
Dry powder is obtained into ultra-fine carbon nanotube dry powder for 24 hours by ball milling, it is 40 nanometers -100 nanometers to finally obtain average particle size
Superfines particle.Next prepares titanium nitride powder, by titanium valve and carbamide CO (NH2)2It is 1 according to quality:1 ratio mixing
Uniformly, titanium valve is made to react with carbamide using mechanization ball-milling method 24 hours under protection of argon gas, prepares titanium nitride production
Titanium nitride is obtained ultra-fine titanium nitride dry powder for 24 hours by object powder by ball milling, finally obtain average particle size for 40 nanometers-
100 nanometers of superfines particle.Last a kind of titanium alloy high-strength direct rack processing method, it is characterized in that carbon nanotube powder
With titanium nitride powder according to quality 1：1 proportioning is uniformly mixed, and titanium nitride obtained-carbon nanotube mixture particle is passed through ball milling
Obtain within 24 hours ultra-fine titanium nitride-carbon nanotube mixture powder.For basis material using titanium, aluminium, molybdenum and vanadium as constituent element, composition can
It is represented with aTi-bAL-cMo-dV, wherein a：83-89, b：5-8, c：1-3, d：6-9 and a+b+c+d=100.By ultra-fine titanium nitride-
Carbon nanotube mixture powder is with basis material of the present invention with weight ratio 1：99 ratio is mixed.Carry out composite ultraphonic vibration
Continuous rotary squeezing-equal channel angular deformation process：Ultrasonic transformer vibration frequency 20-100kHz, 10-100 μm of amplitude, tool heads away from
10-50 millimeters of main drive roll wheel axis by continuous rotating extrusion device, is realized the continuous severe plastic deformation of powder, is passed through
Drive roller wheel provides driving power, and titanium alloy mixed-powder is promoted to bite continuous rotary squeezing-equal channel angular deforming moulds, mixes
It closes dusty material and is driven through continuous rotary squeezing mold cavity in continuous rotary squeezing drive roller wheel, pass through main drive roll wheel
Continuous rotary squeezing and equal channel angular severe plastic deformation occur for driving, and the actuating speed of main drive roll wheel is 15-30r/
Min, deformation temperature are set as 25 DEG C of room temperature, and the material of high strengthening and nanosizing for realizing material severe plastic deformation is passed through
Tooth form die extrusion；It is orthopedic that draw-off gear under the tractive force of 800KN, by high-strength tooth strip material material carries out drawing；It obtains
The straight-tooth strip material of longer dimension, then wire cutting finally shape spur rack finished parts, which can realize higher straight-tooth
Processing efficiency.
True stress-true strain curve is stretched from high intensity rack sample shown in Fig. 3, it can be seen that intensity is compared with conventional specimen
52.5% is improved, according to Hall-Pech formula it is found that the crystallite dimension of material is smaller, external macro-mechanical property is higher.
Simple continuous rotary squeezing equipment, Equal Channel Angular Pressing can be used in a kind of high-strength direct rack provided by the invention
Equipment, wire drawing process equipment, the material of acquisition has high hardness and strength, while keeps preferable hardness and wearability.
Therefore, material of the present invention has potential application value, especially has in terms of the fields such as high-end lathe, industrial robot retarder
There is good advantage.
Continuous rotary squeezing of the present invention-equal channel angular channel deformation drawing process, can be used existing skill
Art, the invention is not limited in above-mentioned cited specific implementation forms, and all those skilled in the art are without creative work
The getable improvement of institute all belongs to the scope of protection of the present invention interior.
Claims (5)
1. a kind of titanium alloy high-strength direct rack processing method, by the titanium alloy powder for adding titanium carbide-carbon nanotube particle
The method that material is combined in the case where ultrasound is imported by continuous rotary squeezing-equal channel angular severe plastic deformation-drawing forming
Machining titanium alloy high-strength direct rack is achieved through the following technical solutions：
（a）It is prepared by titanium nitride-carbon nanotube superfine powder：It is by following calcium metal Ca, magnesium Mg, copper to prepare carbon nanotube powder first
Cu, aluminium Al, nickel and cobalt and water H2The nitrate solution of O, composition proportion are 1：1：1：1：1：1：11, by above-mentioned nitrate
The aqueous solution that the aqueous solution and sodium hydrate content that solution, nitric acid content are 60% are 40% is by quality 1:1:1 ratio is uniformly mixed,
Sediment is filtered acquisition, is subsequently placed in vacuum drying chamber in 550 DEG C, calcines 18 hours, then ball in the ball mill
The superfines ground as 20 μm is catalysts, powder prepared by the above method is placed in steel reactor, to steel reactor
In be blown into volume ratio as 9:1 propylene and the mixed gas of nitrogen, the pressure of body are 0.05-0.3Mpa, gas flow 0.4
m3/ Min, nitrogen are diluent, and for reaction speed and the powder speed of growth, reaction temperature is 660 DEG C, and the reaction time is
60 Min are made carbon nanotube dry powder, by ball milling dry powder are obtained ultra-fine carbon nanotube dry powder for 24 hours, finally obtain average
Granularity is 40 nanometers -100 nanometers of superfines particle；Next prepares titanium nitride powder, by titanium valve and carbamide CO (NH2)2
It is 1 according to quality:1 ratio is uniformly mixed, and under protection of argon gas using mechanization ball-milling method 24 hours, makes titanium valve and carbamide
It reacts, prepares titanium nitride powder product, titanium nitride is obtained into ultra-fine titanium nitride dry powder for 24 hours by ball milling, finally
To the superfines particle that average particle size is 40 nanometers -100 nanometers；Finally by carbon nanotube powder and titanium nitride powder according to
Quality 1：1 proportioning is uniformly mixed, and by ball milling titanium nitride obtained-carbon nanotube mixture particle was obtained ultra-fine nitrogen in 24 hours
Change titanium-carbon nanotube superfine mix powder；
（b）Titanium alloy high-strength tooth strip material basis material powder mixture prepare chemical analysis and weight percent be with
Titanium, aluminium, molybdenum and vanadium are constituent element, and composition can be represented with aTi-bAL-cMo-dV, wherein a：83-89, b：5-8, c：1-3, d：6-9
And a+b+c+d=100, granularity refinement processing is carried out by mechanization ball-milling method, it is 40 nanometer -100 to finally obtain average particle size
The ultra-fine titanium-based metal mixture superfine powder of nanometer；
（c）By the titanium nitride after refinement-carbon nanotube superfine powder and titanium-based metal mixture superfine powder with weight ratio 1：99
Ratio mixed；
（d）Composite ultraphonic vibrates continuous rotary squeezing-equal channel angular severe plastic deformation-drawing forming process：Ultrasonic transformer shakes
Dynamic frequency 20-100kHz, 10-100 μm of amplitude, 10-50 millimeters away from main drive roll wheel axis of tool heads, tool heads are away from main drive roll
10-50 millimeters of wheel axis, selects continuous rotating extrusion device, realizes the continuous severe plastic deformation of powder, passes through drive roller wheel
Driving power is provided, titanium alloy mixed-powder is promoted to bite continuous rotary squeezing-equal channel angular deforming moulds, mixed-powder material
Material is driven through continuous rotary squeezing mold cavity in continuous rotary squeezing drive roller wheel, is occurred by main drive roll wheel drive
Continuous rotary squeezing and equal channel angular severe plastic deformation, the actuating speed of main drive roll wheel is 15-30r/min, and deformation is warm
Degree is set as 25 DEG C of room temperature, and continuous rotary squeezing-equal channel angular deformation technique process realizes automation, both can be blank
Driving force is provided, and the use of main drive roll wheel also ensures scantling precision；In addition, pass through mold cavity in blank
When, pure shear shear deformation occurs for material, in the case of no change material cross-section product, realizes material severe plastic deformation
High strengthening and grain ultrafining；The material head of the rack-plate of extrusion is connected by the steel wire tow line of steel wire clamp and draw-off gear
It connects, is then pulled up in rope traction drop-down, obtain the rack material of high strengthening and nanosizing；
（e）Drawing orthopaedic procedures：Draw-off gear is under the tractive force of 600-900KN, high-strength tooth strip material material to be drawn
It pulls out orthopedic；
（f）Obtain spur rack：The straight-tooth strip material of longer dimension is obtained, then wire cutting finally shapes spur rack finished parts, should
Process can realize higher spur rack processing efficiency.
2. a kind of titanium alloy high-strength direct rack processing method according to claim 1, it is characterized in that：Device is by continuously revolving
Turn extruding-equal channel angular lane device, gear forming mouth mold and corresponding drawing orthopedic appliance with prestressing force pressing sleeve are attached
Belong to component steel wire clamp and steel wire rope composition.
3. a kind of titanium alloy high-strength direct rack processing method according to claim 1, it is characterized in that be will be traditional
Continuous rotary squeezing, equal channel angular severe plastic deformation, drawing forming and composite ultraphonic vibration high pressure torsion are combined together,
The plastic deformation ability of mixed-powder can be improved, pressure procedure parameter is turned round by appropriate adjustment, it can be achieved that matrix powder material not
With the continuous severe plastic deformation of degree.
4. a kind of titanium alloy high-strength direct rack processing method according to claim 1, it is characterized in that being composite ultraphonic
During vibrating high pressure torsion, supersonic generator connects vibration unit by signal transmssion line, and energy converter is connected with ultrasonic transformer,
Ultrasonic transformer is ined succession tool heads again, and the two is connected by studs, and the ultrasonic vibration of tool heads imports point near pressure head
Continuous rotary squeezing region, vibration unit are fixed by positioning fixture and main drive roll wheel, are pressed on powder deformation institute to be deformed
Continuous rotary squeezing-equal channel angular channel on, first ultrasonic delivery is waited to become around main drive roll wheel by tool heads
In shape mixture of powders；10-50 millimeters away from main drive roll wheel axis of tool heads；The tool heads are horizontal by 30 ° -70 °
Angle；Spherical surface is made in the tool end surface, and material is tool steel, titanium alloy or hard alloy.
5. a kind of titanium alloy high-strength direct rack processing method according to claim 1, it is characterized in that being composite ultraphonic
High pressure torsion is vibrated, material internal atom active can be improved, effectively reduces the torque of continuous rotating extrusion device, improves material
Deformation extent, improves extrusion quality, and the forming of difficult deformation dusty material provides new way.
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