摘要
The WGQ type micro computer based electromagnetic nondestructive testing instrument for quality of metal material was developed on the principle of electromagnetic induction. The invention and marketing of the WGQ instrument has solved the world wide tough problem of the "N" shape relation between the indicated values of testing instruments and the hardness of most metal parts, particularly steel and iron parts. It has also greatly improved the hardness testing precision of aluminium alloy. Consequently the instrument can accurately perform either the quantitative testing of aluminium alloy, steel and iron parts hardness or the qualitative testing of their internal and external defects such as cracks, over burnt and so on. Its hardness testing precision is HRB±0.7, HRC±1 and HB±10. The testing speed can reach 1 500 parts per hour. The instrument has already been successfully applied to the spot of lots of factories.
The WGQ type micro computer based electromagnetic nondestructive testing instrument for quality of metal material was developed on the principle of electromagnetic induction. The invention and marketing of the WGQ instrument has solved the world wide tough problem of the 'N' shape relation between the indicated values of testing instruments and the hardness of most metal parts, particularly steel and iron parts. It has also greatly improved the hardness testing precision of aluminium alloy. Consequently the instrument can accurately perform either the quantitative testing of aluminium alloy, steel and iron parts hardness or the qualitative testing of their internal and external defects such as cracks, over burnt and so on. Its hardness testing precision is HRB±0.7, HRC±1 and HB±10. The testing speed can reach 1 500 parts per hour. The instrument has already been successfully applied to the spot of lots of factories.
出处
《中国有色金属学会会刊:英文版》
CSCD
2002年第6期1058-1062,共5页
Transactions of Nonferrous Metals Society of China
关键词
硬度
电磁非破坏性测试
磁导
电导率
hardness
electromagnetic nondestructive testing
magnetic conductivity
electrical conductivity