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Method for inspecting acceptability of amorphous alloy products by means of sound

An amorphous alloy and sound detection technology, which is applied in the processing of detection response signals and the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve the problems of unfavorable mass detection and long detection cycle, and achieve short detection process and reduce errors. Judgment effect

Active Publication Date: 2013-12-18
BYD CO LTD
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Problems solved by technology

[0005] In order to overcome the problems in the prior art that the qualification testing period of amorphous alloy products is long and unfavorable for mass testing, the present invention provides a method for testing the qualification of amorphous alloy products by sound according to the characteristics of the amorphous alloy product itself

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  • Method for inspecting acceptability of amorphous alloy products by means of sound
  • Method for inspecting acceptability of amorphous alloy products by means of sound
  • Method for inspecting acceptability of amorphous alloy products by means of sound

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Embodiment Construction

[0015] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] The inventors of the present invention have found that the amorphous alloy material has better energy conduction performance when receiving external energy, and qualified products can conduct the received energy well into the entire product in the form of vibration. Due to the long time of its own vibration, the attenuation time of the collected sound signal is also long; the conduction of vibration energy of unqualified products will stop when it encounters internal defects such as holes and cracks, and the detected sound The attenuation time of the signal is sho...

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Abstract

The invention provides a method for inspecting the acceptability of amorphous alloy products by means of sound, which includes the following specific steps: an amorphous alloy product is impacted to vibrate and emit sound under the condition of no contact with other objects; the sound signals of the amorphous alloy product, which are generated by impact, are acquired; the sound signals are processed, and the attenuation time of the sound signals is counted; and according to the length of the attenuation time of the sound signals, the acceptability of the product is judged. The method can be used for accurately inspecting whether shrunk holes, cracks or other defects exist in the amorphous alloy product, inspection can be automatically carried out as long as the threshold of the attenuation time of the sound signals of an acceptable product is set in advance, human subjective judgement is not needed, so that misjudgement can be reduced, moreover, the inspection flow is short, and the method is suitable for the inspection of products in large batches.

Description

technical field [0001] The invention relates to a method for detecting the qualification of a product, in particular to a method for detecting the qualification of an amorphous alloy product. Background technique [0002] Amorphous alloy is an alloy whose structure and properties are different from other conventional materials. Because the structure of liquid material is retained during the forming process of this type of alloy, it has the characteristics of long-range disorder and short-range order; at the same time, it has the characteristics of a large number of conventional materials. Possessed properties, such as high strength, high hardness, high wear resistance and high corrosion resistance, have great application potential. [0003] At the same time, amorphous alloys have a uniform structure, and internal defects such as holes and cracks have a great impact on the performance of amorphous alloy products. In the production process, due to the influence of raw material...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/11G01N29/44
Inventor 卢昆文丹华李运春张法亮
Owner BYD CO LTD
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