CN102854244A - Flaw detection method for titanium and titanium alloys by water film method - Google Patents
Flaw detection method for titanium and titanium alloys by water film method Download PDFInfo
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- CN102854244A CN102854244A CN2012102730298A CN201210273029A CN102854244A CN 102854244 A CN102854244 A CN 102854244A CN 2012102730298 A CN2012102730298 A CN 2012102730298A CN 201210273029 A CN201210273029 A CN 201210273029A CN 102854244 A CN102854244 A CN 102854244A
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Abstract
The invention discloses a flaw detection method for titanium and titanium alloys by a water film method, which is implemented as follows: a pool with a width of two meters and a length of nine meters is built; a titanium ingot is placed in the pool; clean water is fed into the pool, and water is just above the upper surface of the titanium ingot; because of the transmission function of the water, sound waves can be transferred to the titanium ingot well; and by using the transmission and reflection characteristics of ultrasonic waves on titanium metals, defects such as cracks, air holes and the like in the titanium ingot are detected. The invention provides a water film type flaw detection method for internal defects of titanium and titanium alloys, and the method can not cause the phenomena such as large energy transmission attenuation of wave beams of an ultrasonic flaw detector, wave cluttering, scattering and diffraction, has common requirements on the operant level of the detecting personnel, and is high in detection efficiency; and by using the method, the delivery quality of titanium ingots can be ensured, the rate of finished products of the next process can be improved, and loss can be reduced.
Description
Technical field
The invention belongs to titanium or titanium alloy inherent vice method for detection fault detection technical field.
Background technology
At present, titanium ingot melting both domestic and external enterprise all adopts defect detection on ultrasonic basis that the defectives such as titanium ingot underbead crack, pore are carried out carrying out flaw detection usually, but this dry type detection method, be easy to cause ultra-sonic defect detector beam energy transmission decay large, clutter, scattering, diffraction phenomena are serious, operant level requirement to the testing staff is high especially, so detection efficiency is low.
Summary of the invention
Purpose of the present invention is exactly titanium ingot inherent vice to be carried out the existing deficiency of method for detection fault detection and to provide a kind of and can not cause ultra-sonic defect detector beam energy transmission decay large in order to overcome above-mentioned existing employing defect detection on ultrasonic basis, clutter, scattering, diffraction phenomena, operant level requirement to the testing staff is common, the water film type titanium or titanium alloy inherent vice method for detection fault detection that detection efficiency is high.
The objective of the invention is to realize by following technical solution.
Adopt moisture film method ultra-sonic defect detector that titanium ingot internal physical defective is detected; The steps include: to build wide two meters long ponds of nine meters, the titanium or titanium alloy ingot is put into the pond, put into again clear water, allow water just cover titanium ingot upper surface, utilize ultrasound wave to the penetrate through reflective characteristic of titanium, the defectives such as titanium ingot underbead crack, pore are detected.Build two meters long nine meters ponds and just in time be suitable for the at present size of the titanium ingot size of production of ultrasound examination.Because the transfer function of water is arranged, and sound wave energy well is delivered to the titanium ingot in the pond, takes full advantage of ultrasound wave to the penetrate through reflective characteristic of titanium.
The invention has the beneficial effects as follows, can not cause ultra-sonic defect detector beam energy transmission decay large, clutter, scattering, diffraction phenomena, common to testing staff's operant level requirement, detection efficiency is high; Can guarantee the quality of dispatching from the factory of titanium ingot, improve the rate of becoming a useful person of next process, cut loss.
Further set forth content of the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the inventive method operation chart.
Among the figure: 1, pond; 2, titanium ingot; 3, small rail car; 4, the super instrument dolly of visiting; 5, ultra-sonic defect detector; 6, computer system.
Embodiment
Build wide two meters long ponds of nine meters, the titanium ingot is put into the pond, put into clear water, allow water just cover titanium ingot upper surface, on the both sides, pond track is set, ultra-sonic defect detector is placed on the slide rail dolly, dolly can be along track free-running operation.Because the transfer function of water is arranged, and sound wave energy well is delivered to the titanium ingot, utilizes ultrasound wave to the penetrate through reflective characteristic of titanium, detect the defectives such as titanium ingot underbead crack, pore, guarantee the quality of dispatching from the factory of titanium ingot, improve the rate of becoming a useful person of next process, cut loss.
Technical requirement:
| Sweep limit (mm) | 0 ～ 10000 |
| The vertical linearity error | ≤3% |
| The horizontal linearity error | ≤0.2% |
| The flaw detection sensitivity surplus | 〉=62dB (dark 200mm Ф 2 flat-bottom holes) |
| Dynamic range | ≥32dB |
| Resolving power | ≥40dB（2.5P20） |
| Frequency range (MHz) | 0.5 ～ 20 |
| Gain-adjusted (dB) | 0 ～ 110 |
| The electricity level of making an uproar | ≤10％ |
| The material velocity of sound (m/s) | 1000 ～ 9999 |
| Repeat its transmission frequency (Hz) | 100～1000 |
| Working method | Single, double, transmission |
| Suppress | 0~80% |
| Pulse displacement (μ s) | -20 ～ +3400 |
| Pop one's head in zero point (μ s) | 0.0 ～ 99.99 |
Power supply: 24VDC(± 10%)
Response time:＜15s
Output signal: 4-20mA or 485 interfaces
Load capacity:＜250 Ω
Power consumption :≤2.5W
Probe material: stainless steel.
Claims (1)
1. a titanium or titanium alloy moisture film method method for detection fault detection is characterized in that, adopts moisture film method ultra-sonic defect detector that titanium ingot internal physical defective is detected; The steps include: to build wide two meters long ponds of nine meters, the titanium or titanium alloy ingot is put into the pond, put into again clear water, allow water just cover titanium ingot upper surface, utilize ultrasound wave to the penetrate through reflective characteristic of titanium, titanium ingot underbead crack, pore are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102730298A CN102854244A (en) | 2012-08-02 | 2012-08-02 | Flaw detection method for titanium and titanium alloys by water film method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102730298A CN102854244A (en) | 2012-08-02 | 2012-08-02 | Flaw detection method for titanium and titanium alloys by water film method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102854244A true CN102854244A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012102730298A Pending CN102854244A (en) | 2012-08-02 | 2012-08-02 | Flaw detection method for titanium and titanium alloys by water film method |
Country Status (1)
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| CN (1) | CN102854244A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543199A (en) * | 2013-09-12 | 2014-01-29 | 云南钛业股份有限公司 | Flaw detection method for defects of pure-titanium slab casting |
| CN104215691A (en) * | 2013-05-31 | 2014-12-17 | Rti国际金属公司 | Method of ultrasonic inspection of as-cast titanium alloy articles |
| US9981349B2 (en) | 2013-05-31 | 2018-05-29 | Arconic Inc. | Titanium welding wire, ultrasonically inspectable welds and parts formed therefrom, and associated methods |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5269682A (en) * | 1975-12-08 | 1977-06-09 | Toshiba Corp | Method fna device for ultrasonic flaw detection of welds of vertical pipes |
| US5681996A (en) * | 1996-08-01 | 1997-10-28 | Beloit Technologies, Inc. | Ultrasonic device for inspection of metal parts |
| CN201110845Y (en) * | 2007-11-30 | 2008-09-03 | 舞阳钢铁有限责任公司 | Thick steel plate flaw detecting apparatus with aqueous film coupled impulse reflection method |
| CN101358949A (en) * | 2007-07-31 | 2009-02-04 | 宝山钢铁股份有限公司 | Combination ultrasonic probe |
| CN101699278A (en) * | 2009-06-16 | 2010-04-28 | 宁波江丰电子材料有限公司 | Method for testing target |
-
2012
- 2012-08-02 CN CN2012102730298A patent/CN102854244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5269682A (en) * | 1975-12-08 | 1977-06-09 | Toshiba Corp | Method fna device for ultrasonic flaw detection of welds of vertical pipes |
| US5681996A (en) * | 1996-08-01 | 1997-10-28 | Beloit Technologies, Inc. | Ultrasonic device for inspection of metal parts |
| CN101358949A (en) * | 2007-07-31 | 2009-02-04 | 宝山钢铁股份有限公司 | Combination ultrasonic probe |
| CN201110845Y (en) * | 2007-11-30 | 2008-09-03 | 舞阳钢铁有限责任公司 | Thick steel plate flaw detecting apparatus with aqueous film coupled impulse reflection method |
| CN101699278A (en) * | 2009-06-16 | 2010-04-28 | 宁波江丰电子材料有限公司 | Method for testing target |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215691A (en) * | 2013-05-31 | 2014-12-17 | Rti国际金属公司 | Method of ultrasonic inspection of as-cast titanium alloy articles |
| US9981349B2 (en) | 2013-05-31 | 2018-05-29 | Arconic Inc. | Titanium welding wire, ultrasonically inspectable welds and parts formed therefrom, and associated methods |
| CN104215691B (en) * | 2013-05-31 | 2019-04-02 | Rti国际金属公司 | The ultrasonic detection method of as cast condition titanium alloy product |
| CN103543199A (en) * | 2013-09-12 | 2014-01-29 | 云南钛业股份有限公司 | Flaw detection method for defects of pure-titanium slab casting |
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Application publication date: 20130102 |