CN108929973A - A kind of cycle frame titanium alloy - Google Patents
A kind of cycle frame titanium alloy Download PDFInfo
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- CN108929973A CN108929973A CN201710373457.0A CN201710373457A CN108929973A CN 108929973 A CN108929973 A CN 108929973A CN 201710373457 A CN201710373457 A CN 201710373457A CN 108929973 A CN108929973 A CN 108929973A
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- titanium alloy
- cycle frame
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- 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
Abstract
The invention discloses a kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.0-1.5%, Ni 0.3-0.5%, W 0.5-1.0%, Co 0.8-1.2%, Fe 0.75-2.0%, Cr 1.5-2.5%, surplus are Ti and inevitable impurity；After heat treatment, under conditions of horizontal fatigue loading frequency f≤15Hz, pulling force F1=1200N, pressure F2=600N, fatigue life N >=50000 time meet the associated specifications of European standard EN14766-2005 to the tubing of titanium alloy preparation of the present invention.
Description
Technical field
The present invention relates to a kind of titanium materials technology field more particularly to a kind of cycle frame titanium alloys.
Background technique
Since mountain bike invention in 1977, lightweight, high-strength, long-life are always numerous mountain bike factories
The target that family chases.Titanium alloy is because having many merits, especially specific strength such as density small, intensity is high, high and low temperature resistance and corrosion resistance
Higher than magnesium, aluminium alloy, therefore it is the research and development direction of always bicycle art, is ideal mountain bike frame material
Material.
Foreign countries' titanium mountain bike technology of preparing relative maturity at present, mostly uses Ti-3Al-2.5V titanium alloy pipe system
Standby mountain bike frame, comprehensive performance is good, but production cost is higher, and the vehicle frame wall thickness of preparation is thicker, and there is products
The defects such as weight is big, at high cost, the service life is low.
The domestic research about titanium mountain bike has been carried out for many years, although also selecting Ti-3Al-2.5V titanium alloy
Frame body is prepared, but the examination bottleneck of the low Zhou Shuiping fatigue behaviour of lightweight titanium vehicle frame can not be broken through always, i.e., vehicle frame is in water
Under conditions of flat-tired labor loading frequency f≤15Hz, pulling force F1=1200N, pressure F2=600N, fatigue life N >=50000 time
Check requirements.
A kind of mountain bike titanium alloy and preparation method thereof, the party are disclosed in Chinese invention patent CN103436733A
Although method solves the technical bottleneck of horizontal fatigue behaviour, but still need to the vanadium metal that 1-2% is added, and leads to the price of titanium alloy
It is high.
Therefore, it is necessary to research and develop a kind of mountain bike frame titanium alloy, both cost can be reduced with substituted metal vanadium,
It also can break through the technical bottleneck of horizontal fatigue behaviour simultaneously.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of cycle frame titanium alloys.
Technical scheme is as follows：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.0-1.5%, Ni 0.3-0.5%,
W 0.5-1.0%, Co 0.8-1.2%, Fe 0.75-2.0%, Cr 1.5-2.5%, surplus are Ti and inevitable impurity.
Preferably, the content of the W element and the content ratio of Fe element are 1：（1.5-2）.
Preferably, the content of the V element is lower than 0.1%.
Preferably, the cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni
0.4%, W 0.8%, Co 1.0%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
Preferably, the cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni
0.5%, W 0.8%, Co 1.2%, Fe 1.2%, Cr 2.0%, surplus are Ti and inevitable impurity.
Preferably, the cycle frame titanium alloy, the ingredient including following weight percent：Al 1.5%, Ni
0.3%, W 1.0%, Co 0.8%, Fe 1.5%, Cr 1.5%, surplus are Ti and inevitable impurity.
Preferably, the cycle frame titanium alloy, the ingredient including following weight percent：Al 1.0%, Ni
0.5%, W 0.5%, Co 1.2%, Fe 0.75%, Cr 2.5%, surplus are Ti and inevitable impurity.
Preferably, the cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni
0.4%, W 0.5%, Co 1.1%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
The invention has the beneficial effects that：
1, titanium alloy intensity of the invention and plasticity are excellent, and temperature-room type plasticity is suitable with traditional Ti-3Al-2.5V titanium alloy,
The high 50-80MPa of intensity ratio Ti-3Al-2.5V titanium alloy under optimal conditions；
2, titanium alloy of the present invention is by the way that with cheap crome metal, iron, cobalt, nickel and tungsten, completely instead of vanadium, substantially reducing is reduced
Cost has very excellent cost performance；
3, after heat treatment using the tubing of titanium alloy of the present invention preparation, in horizontal fatigue loading frequency f≤15Hz, pulling force F1
Under conditions of=1200N, pressure F2=600N, fatigue life N >=50000 time meet the phase of European standard EN14766-2005
Close technical requirements.
Specific embodiment
The preparation method of cycle frame titanium alloy of the invention can refer to Chinese invention patent CN103436733A
Disclosed in preparation method.
Embodiment 1：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni 0.4%, W 0.8%,
Co 1.0%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
Embodiment 2：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni 0.5%, W 0.8%,
Co 1.2%, Fe 1.2%, Cr 2.0%, surplus are Ti and inevitable impurity.
Embodiment 3：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.5%, Ni 0.3%, W 1.0%,
Co 0.8%, Fe 1.5%, Cr 1.5%, surplus are Ti and inevitable impurity.
Embodiment 4：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.0%, Ni 0.5%, W 0.5%,
Co 1.2%, Fe 0.75%, Cr 2.5%, surplus are Ti and inevitable impurity.
Embodiment 5：
A kind of cycle frame titanium alloy, the ingredient including following weight percent：Al 1.2%, Ni 0.4%, W 0.5%,
Co 1.1%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
The finished product tubing of 1-5 of the embodiment of the present invention after heat treatment, is tested, in frequency on horizontal fatigue tester
Under conditions of f=2Hz, pulling force F1=1200N, pressure F2=600N, fatigue life actual measurement N is respectively 88000 times, 65000 times,
69500 times, 73500 times, 85500 times, are all satisfied the associated specifications of European standard EN14766-2005.
Comparative example 1：
0.2% metal V will be added in embodiment 1, detects its fatigue life actual measurement N=88500 time under the same conditions.
Comparative example 2：
1.5% metal V will be added in embodiment 1, detects its fatigue life actual measurement N=90500 time under the same conditions.
By comparative example 1 and 2, even if fatigue life mentions it is recognised that metal V is added in titanium alloy of the invention
Height is not obvious, therefore from cost consideration, titanium alloy of the invention is added without metal V.
This detection data is just for above-mentioned test sample.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of cycle frame titanium alloy, which is characterized in that the ingredient including following weight percent： Al 1.0-
1.5%, Ni 0.3-0.5%, W 0.5-1.0%, Co 0.8-1.2%, Fe 0.75-2.0%, Cr 1.5-2.5%, surplus is for Ti and not
Evitable impurity；The titanium alloy is in horizontal fatigue loading frequency f≤15Hz, pulling force F1=1200N, pressure F2=600N
Under the conditions of, fatigue life N >=50000 time.
2. cycle frame titanium alloy as described in claim 1, which is characterized in that content and the Fe member of the W element
The content ratio of element is 1：（1.5-2）.
3. cycle frame titanium alloy as described in claim 1, which is characterized in that the content of the V element is lower than
0.1%。
4. cycle frame titanium alloy as claimed in claim 3, which is characterized in that including following weight percent at
Point：Al 1.2%, Ni 0.4%, W 0.8%, Co 1.0%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
5. cycle frame titanium alloy as claimed in claim 3, which is characterized in that including following weight percent at
Point：Al 1.2%, Ni 0.5%, W 0.8%, Co 1.2%, Fe 1.2%, Cr 2.0%, surplus are Ti and inevitable impurity.
6. cycle frame titanium alloy as claimed in claim 3, which is characterized in that including following weight percent at
Point：Al 1.5%, Ni 0.3%, W 1.0%, Co 0.8%, Fe 1.5%, Cr 1.5%, surplus are Ti and inevitable impurity.
7. cycle frame titanium alloy as claimed in claim 3, which is characterized in that including following weight percent at
Point：Al 1.0%, Ni 0.5%, W 0.5%, Co 1.2%, Fe 0.75%, Cr 2.5%, surplus are Ti and inevitable impurity.
8. cycle frame titanium alloy as claimed in claim 3, which is characterized in that including following weight percent at
Point：Al 1.2%, Ni 0.4%, W 0.5%, Co 1.1%, Fe 1.0%, Cr 2.0%, surplus are Ti and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373457.0A CN108929973A (en) | 2017-05-24 | 2017-05-24 | A kind of cycle frame titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710373457.0A CN108929973A (en) | 2017-05-24 | 2017-05-24 | A kind of cycle frame titanium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108929973A true CN108929973A (en) | 2018-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710373457.0A Pending CN108929973A (en) | 2017-05-24 | 2017-05-24 | A kind of cycle frame titanium alloy |
Country Status (1)
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| CN (1) | CN108929973A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257136B2 (en) * | 1983-07-01 | 1990-12-04 | Yamaha Corp | |
| JPH0754082A (en) * | 1993-08-11 | 1995-02-28 | Sumitomo Metal Ind Ltd | High strength titanium alloy excellent in cold processibility and weldability |
| CN103436733A (en) * | 2013-09-14 | 2013-12-11 | 西北有色金属研究院 | High-fatigue-property titanium alloy for mountain bike frames |
| CN105420550A (en) * | 2015-12-30 | 2016-03-23 | 江苏汇智知识产权服务有限公司 | High-performance Ti alloy and preparation method thereof |
-
2017
- 2017-05-24 CN CN201710373457.0A patent/CN108929973A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257136B2 (en) * | 1983-07-01 | 1990-12-04 | Yamaha Corp | |
| JPH0754082A (en) * | 1993-08-11 | 1995-02-28 | Sumitomo Metal Ind Ltd | High strength titanium alloy excellent in cold processibility and weldability |
| CN103436733A (en) * | 2013-09-14 | 2013-12-11 | 西北有色金属研究院 | High-fatigue-property titanium alloy for mountain bike frames |
| CN105420550A (en) * | 2015-12-30 | 2016-03-23 | 江苏汇智知识产权服务有限公司 | High-performance Ti alloy and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |
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| WD01 | Invention patent application deemed withdrawn after publication |