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YS/T 515-2012: Test method for sag of tungsten wire
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
YS/T 515-2012	English	189	Add to Cart	3 days [Need to translate]	Test method for sag of tungsten wire
YS/T 515-2006	English	199	Add to Cart	2 days [Need to translate]	Tungsten sagging test method

YS/T 515-2012: Test method for sag of tungsten wire

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Test method for sag of tungsten wire ICS 77.120.99 H63 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 515-2006 Tungsten sagging Test Method Issued on. 2012-05-24 2012-11-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Instead of the standard YS/T 515-2006 "tungsten sagging test methods" (formerly GB 4105-1983). This standard YS/T 515-2006 compared to the main changes are as follows. --- Improved test methods; --- Modify the scope of application; --- Increasing the test report. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted. Hong Lu Xiamen Tungsten Molybdenum Industry Co., Ltd., China Nonferrous Metals Industry Institute of Standards and Metrology and Quality. The main drafters of this standard. Peng Fusheng, Zhang Yancheng, Guoqin, Caigui Min, Zhang Yun, Lin Lirong, Zhu Bingcan, Jiang vanilla. This part of the standard replaces the previous editions are. --- GB 4105-1983; --- YS/T 515-2006. Tungsten sagging Test Method

1 Scope

This standard specifies the tungsten sagging Test Method and reporting requirements. This standard applies to φ0.39mm and φ1.00mm doped tungsten sagging performance testing.

2 principle of the method

Tungsten wire cantilever state, the occurrence of secondary recrystallization at high temperatures and the action of gravity, due to the grain boundary sliding sagging. Drooping Cheng Associated with quality of tungsten, tungsten which to judge the performance of high temperature.

3 Reagents and materials

3.1 Sodium hydroxide solution (100g/L). 3.2 Hydrogen, dew point lower than -45 ℃.

4 Test Equipment

4.1 V type high-temperature tungsten wire tester Tungsten V-temperature test machine is shown in Figure 1. Figure 1 V-type high-temperature tungsten wire tester schematic ...