CN104745873B - A kind of method preparing aluminium-titanium alloy blade - Google Patents
A kind of method preparing aluminium-titanium alloy blade Download PDFInfo
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Abstract
A kind of method preparing aluminium-titanium alloy blade of disclosure, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al 11.6%, Sn 3.6%, Fe 0.86%, Si 0.16%, Cr 0.16%, Ca 0.36%, Bi 0.56%, In 0.056%, Cu 0.036%, La 0.016%, Y 0.036%, Mn 0.016%, V 0.056%, surplus is titanium and inevitable nonmetal inclusion, and titanium alloy plate intensity reaches more than 1200MPa.
Description
Technical field
The present invention relates to a kind of method preparing aluminium-titanium alloy blade, belong to titanium-base alloy and manufacture field.
Background technology
Ti-6Al-4V be use the most extensively, the most ripe typical (alpha+beta) diphasic titanium alloy, nearly 40 years of the history that various countries research and develop in succession also has respective alloy designations.Its compositional characteristic is: alloying element allowable fluctuation range wider (Al:5.5%-6.75%), and impurity allows content higher (Fe:0.3%max, O:0.2%max, H:0.015%max)；Thus bringing higher metallurgical imperfection probability, relatively low plasticity and toughness and shorter service life.For this, minority developed country headed by American and Britain developed corresponding low gap alloy at nearly 20 years again, such as the U.S. UNSR56401, ASTMF468, Grade23, AMS4930, Ti-64ELI, Britain IMI318ELI, France TA6VELI etc., are widely used in the key areas such as low temperature, medical treatment, naval vessel and aircraft.Its compositional characteristic is: alloying element allowable fluctuation range narrower (Al:5.5%～6.5%), and impurity allows content relatively low (Fe:0.25%max, O:0.13%max, H:0.0125%)；Thus bringing less metallurgical imperfection probability, higher plasticity and toughness, good welding performance and longer service life.Reach an order of magnitude than nearly one times of the K1C of Ti-6Al-4V alloy raising, da/dN reduction, now have been supplied on fighter plane and a new generation's civil aircraft of advanced person.Such as, the U.S. by Ti-6Al-4V and Ti-6Al-4VELI Alloyapplication in the tailplane rotating shaft of F-16 fighter plane, the number one driving cabin windscreen window skeleton of Boeing-767 and the main rotor of helicopter, the tail rotor rotatable parts such as UH60A " blackhawk ", SH60B " Hai Ying ", CH53E " supper variety horse ".The large-scale forging part of support beam (weight 1545kg, long 6.2m, wide 0.95m, projected area 4.06m2) of the main landing gear of civil aircraft Boeing-747, started from 1969 to produce until nowadays still in supply.Nowadays, Ti-6Al-4V (Ti-6Al-4VELI) the titanium alloy application of U.S. forth generation opportunity of combat F22, F/A-18E/F etc. comes into the ripe application stage adopting larger non-detachable mold forging, in F22 fighter plane part, titanium alloy accounts for the 41% of aircraft weight, and wherein Ti-6Al-4VELI accounts for again the 87.5% of titanium alloy weight.Wherein F-22 rear body monoblock type bulkhead (weight 1590kg, long 3.8m, wide 1.7m, projected area 5.53m2) is titanium alloy closed mould forging maximum in the world at present.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the preparation method of a kind of easy to operate, precision casting of titanium alloy blade that process controllability is strong.This technique can make titanium alloy blade keep the coupling of good intensity, fracture toughness and plasticity, and performance lot stability improves.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of investment casting prepares the method for titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.6%, Sn3.6%, Fe0.86%, Si0.16%, Cr0.16%, Ca0.36%, Bi0.56%, In0.056%, Cu0.036%, La0.016%, Y0.036%, Mn0.016%, V0.056%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1780 DEG C, pouring temperature is 1700 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 700 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 2.5h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 9h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 12h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 10 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.6 part, Co10.6 part, Cr6.6 part, Mo3.6 part.
A kind of investment casting prepares the method for titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.8%, Sn3.8%, Fe0.88%, Si0.18%, Cr0.18%, Ca0.38%, Bi0.58%, In0.058%, Cu0.038%, La0.018%, Y0.038%, Mn0.018%, V0.058%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1800 DEG C, pouring temperature is 1730 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 750 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 3h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 10h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 14h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 11 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.8 part, Co10.8 part, Cr6.8 part, Mo3.8 part.
Compared with prior art, there is advantages that
The present invention compared with prior art has any advantage: present invention process is simple, structural homogenity is easily controlled, giving full play to the performance advantage of low gap titanium alloy, the strength of materials of processing, toughness and plasticity coupling are good, and the lot stability of performance is improved.Intensity touches the mark requirement, and intensity reaches more than 1200MPa.
Detailed description of the invention
Embodiment 1:
A kind of investment casting prepares the method for titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.6%, Sn3.6%, Fe0.86%, Si0.16%, Cr0.16%, Ca0.36%, Bi0.56%, In0.056%, Cu0.036%, La0.016%, Y0.036%, Mn0.016%, V0.056%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1780 DEG C, pouring temperature is 1700 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 700 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 2.5h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 9h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 12h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 10 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.6 part, Co10.6 part, Cr6.6 part, Mo3.6 part.
Embodiment 2:
A kind of investment casting prepares the method for titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.8%, Sn3.8%, Fe0.88%, Si0.18%, Cr0.18%, Ca0.38%, Bi0.58%, In0.058%, Cu0.038%, La0.018%, Y0.038%, Mn0.018%, V0.058%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1800 DEG C, pouring temperature is 1730 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 750 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 3h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 10h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 14h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 11 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.8 part, Co10.8 part, Cr6.8 part, Mo3.8 part.
Claims (2)
1. the method that an investment casting prepares titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.6%, Sn3.6%, Fe0.86%, Si0.16%, Cr0.16%, Ca0.36%, Bi0.56%, In0.056%, Cu0.036%, La0.016%, Y0.036%, Mn0.016%, V0.056%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1780 DEG C, pouring temperature is 1700 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 700 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 2.5h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 9h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 12h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 10 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.6 part, Co10.6 part, Cr6.6 part, Mo3.6 part.
2. the method that an investment casting prepares titanium alloy blade, it is characterized in that: each constituent mass percentage composition of described alloy includes: Al11.8%, Sn3.8%, Fe0.88%, Si0.18%, Cr0.18%, Ca0.38%, Bi0.58%, In0.058%, Cu0.038%, La0.018%, Y0.038%, Mn0.018%, V0.058%, surplus is titanium and inevitable nonmetal inclusion
Precision casting of titanium alloy blade preparation method: comprise the following steps: according to aforementioned proportion alloyage, alloy material melting, cast: fusion temperature: 1800 DEG C, pouring temperature is 1730 DEG C；After carry out the demoulding, the blade obtained carries out heat treatment: first blade is heated to 750 DEG C and quenches, then through three Ageing Treatment, first time Ageing Treatment is controlling temperature 460 DEG C, insulation 3h, logical argon blower fan stirring cooling under vacuum condition, second time Ageing Treatment is at air batch-type furnace, controlling temperature is 410 DEG C, and insulation 10h comes out of the stove air cooling；Third time Ageing Treatment is at air batch-type furnace, and controlling temperature is 370 DEG C, is incubated 14h, then cools to 270 DEG C with the speed of 2 DEG C/min, is incubated 11 hours, after come out of the stove air cooling；
After heat treatment, blade surface is processed, first many ribs type 230 order emergy is selected to carry out surface coarsening process, adopt alkaline hydrated oxide 75% again, chelating agen 10%, trihydroxy benzene 15%, titanium alloy blade surface after processing is carried out activation processing by the hot solution of three kinds of surface active agent compositions, and the blade after activation is carried out hot spraying WC system ceramic metal；WC system cermet particles is sized to 450 μm, makes WC system ceramic metal deposit into wear-resistant coating on blade by spray gun, obtains final blade, WC system ceramic metal main component: WC23.8 part, Co10.8 part, Cr6.8 part, Mo3.8 part.
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| CN107746994A (en) * | 2017-10-17 | 2018-03-02 | 宝鸡市永盛泰钛业有限公司 | A kind of titanium alloy applied to glof club head and preparation method thereof |
| CN109136645A (en) * | 2018-10-06 | 2019-01-04 | 广州宇智科技有限公司 | A kind of new titanium alloy with low-density high thermal conductivity coefficient and high intensity |
| CN109136646A (en) * | 2018-10-06 | 2019-01-04 | 广州宇智科技有限公司 | A kind of corrosion-resistant biphase titanium alloy of novel high-strength low-density and its technique |
| CN114525429B (en) * | 2022-04-21 | 2022-08-02 | 北京煜鼎增材制造研究院有限公司 | High-strength titanium alloy and additive preparation method thereof |
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| CN101572362B (en) * | 2009-06-08 | 2011-07-27 | 哈尔滨工业大学 | Manufacturing method of environment-resistant electric connector shell made of titanium alloy |
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