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19-01-2011 дата публикации

Method for identifying and assessing needle-like ferrite pipe line steel tissues

Номер: CN0101949810A
Автор: YAORONG FENG, SHENGWU GUO, CHUNYONG HUO, HUIFEN CHAI, QIURONG MA, WEIWEI LI, LINGKANG JI, YING XU, JINFENG LI, FENG YAORONG, GUO SHENGWU, HUO CHUNYONG, CHAI HUIFEN, MA QIURONG, LI WEIWEI, JI LINGKANG, XU YING, LI JINFENG
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The invention relates to a method for identifying and assessing needle-like ferrite pipe line steel tissues, which comprises the following steps: simplifying various ferrite tissues into ferrite and bainite; and by a heat dyeing experiment, enabling the different tissues and crystalline grains in the material to display the different contrast from white to yellow and brown, wherein the assessing of the needle-like ferrite pipe line steel banded tissue is divided into four levels. The measuring method for the ferrite crystalline grains of the needle-like ferrite pipe line steel comprises: a comparative method and a resection method are selected for the judging method of the ferrite crystalline grains; the comparative method is used for production inspection, if dispute exists, the resection method is the arbitration method; the comparative method is as follows: judging the grain size rank by comparing with a standard rating graph; and the resection method is as follows: assessing the grain ...

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Номер записи: 1
07-12-2011 дата публикации

Method for identifying and assessing needle-like ferrite pipe line steel tissues

Номер: CN0101949810B
Автор: FENG YAORONG, GUO SHENGWU, HUO CHUNYONG, CHAI HUIFEN, MA QIURONG, LI WEIWEI, JI LINGKANG, XU YING, LI JINFENG, YAORONG FENG, SHENGWU GUO, CHUNYONG HUO, HUIFEN CHAI, QIURONG MA, WEIWEI LI, LINGKANG JI, YING XU, JINFENG LI
Принадлежит:

The invention relates to a method for identifying and assessing needle-like ferrite pipe line steel tissues, which comprises the following steps: simplifying various ferrite tissues into ferrite and bainite; and by a heat dyeing experiment, enabling the different tissues and crystalline grains in the material to display the different contrast from white to yellow and brown, wherein the assessing of the needle-like ferrite pipe line steel banded tissue is divided into four levels. The measuring method for the ferrite crystalline grains of the needle-like ferrite pipe line steel comprises: a comparative method and a resection method are selected for the judging method of the ferrite crystalline grains; the comparative method is used for production inspection, if dispute exists, the resection method is the arbitration method; the comparative method is as follows: judging the grain size rank by comparing with a standard rating graph; and the resection method is as follows: assessing the grain ...

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Номер записи: 2