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Method for nondestructive testing of weld clusters

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专利汇可以提供Method for nondestructive testing of weld clusters专利检索,专利查询,专利分析的服务。并且Disclosed is a method for the nondestructive testing of weld clusters having at least a first and a second weld joining metal elements including the steps of injecting a current into one of the elements from a suitable source by contacting each of the elements with a current probe therefrom. A first current density is then measured between the current probe and the first weld and a second current density is measured between the current probe and the second weld and the first current density is then compared with the second current density so as to determine the relative quality of said welds.,下面是Method for nondestructive testing of weld clusters专利的具体信息内容。

1. A method for the nondestructive testing of weld clusters having a plurality of welds joining two metal elements comprising the steps of: injecting a current into one of the elements by contacting each of the elements with a current probe at the approximate geometric center of the welds within the cluster, measuring the total resistance of all the welds within the weld cluster thereby determining the existence of clusters in which all welds are of a poor quality, measuring a first current density between said current probe and one weld, measuring additional current densities between said current probe and the additional welds of the weld cluster, and comparing said first current density with each said additional current density so as to determine the relative quality of the welds.
2. A method for the nondestructive testing of weld clusters, as in claim 1, wherein said current density is measured by a voltmeter which determines the potential difference across a portion of the element.
3. A method for the nondestructive testing of weld clusters, as in claim 1, wherein said first current density is measured on a line connecting said current probe and said first weld and wherein said second current density is measured on a line connecting said current probe and said second weld.
4. A method for the nondestructive testing of weld clusters, as in claim 3, wherein said first and said second current densities are measured at equal distances from said current probe.
5. A method for the nondestructive testing of weld clusters, as in claim 1, wherein said current is injected from a constant current source.
6. A method for the nondestructive testing of weld clusters, as in claim 5, including the step of measuring the voltage across said constant current source.
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