Yantai Great Wall TESTING CO., LTD
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2014-01-07Norwegian classification society (DNV) NDT qualification approval
DETAIL:On January 17, 2014, Great Wall testing was approved as a non-destructive testing qualification by D...
2013-11-04Quality management system certification (ISO 9000)
DETAIL:On November 4, 2013, Great Wall inspection obtained the quality management system certification (ISO...
2019-08-28Classification of failure analysis
DETAIL:1. Classification by material damage mechanismAccording to the physical and chemical essential mecha...
2019-04-28Introduction to failure analysis technology tools
DETAIL:1. Auger electrons is a failure analysis technique for analyzing the surface of a sample. Auger Elec...
2018-08-16Mechanical performance test safety regulations
DETAIL:1. Before using the equipment, check its performance and lubrication. All parts and electrical devic...
2017-08-16Application of mechanical properties test of materials
DETAIL:First, the status quo of the use of insulation materials Insulating members commonly used in live wo...
2017-04-16Introduction to the definition principle and advantages of ultrasonic testing
DETAIL:Ultrasonic testing involves the interaction of ultrasonic waves with the test piece, and studies the...
2019-08-16Common chemical composition analysis methods
DETAIL:Chemical composition analysis refers to classical gravimetric analysis and volume analysis. Gravimet...
2019-06-20Metallographic analysis testing project and testing process
DETAIL:Metallographic analysis test items: 1. Welding metallographic examination;2. Cast iron metallographi...
2018-07-18Principles and basic concepts of failure analysis
DETAIL:Failure mechanisms are physical or chemical processes that cause parts, components, and materials to...
2018-02-16Introduction to chemical composition instrumental analysis
DETAIL:1. Electrochemical analysis refers to the application of electrochemical principles and techniques. ...
2017-08-28Introduction to the general principle of nondestructive testing
DETAIL:Non-destructive testing technology does not destroy parts or materials, can be directly tested on si...
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Email:yukun@gwtco.cn
Address:783 zhenhua street, fushan district, yantai city
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