hardness testing造句怎麼寫

The Rockwell hardness tester is a precision measurement instrument in material and part hardness testing, which is often used in detection of materials, product and half-finished product.

The surface layers are characterized by means of the optical microscope, X ray diffraction, transmission electronic microscope, and micro hardness testing machine.

This paper presents a micro-hardness testing method, namely depth-hardness testing with nanometer scale.

hardness testing methods for rubber, vulcanized or thermoplastic

It was found that the surface roughness is significant in Brinell hardness testing, but has little influence on Rockwell hardness.

By means of chemical composition analysis, hardness testing, non-metallic inclusion examination, metallographic examination, macro and micro-fractography fracture analysis were conducted.

Indentation methods of hardness testing comprise two principal groups.

Analysis was performed on the crack zone by macroscopical, microscopical and hardness testing.

Method of Shore hardness testing for mill rolls

mechanical hardness testing machine for testing industrial materials