The microporosity morphology and formation mechanism of cast magnesium alloy was investigated with software for analysis percentage of microporosity and field scanning electron microscopy.
By means of stereomicroscopy and scanning electronic microscopy(SEM),the fracture mode and mechanism of the broken K18 superalloy cast blade in a supercharger turbo were investigated.
Benzylic ether phenolic resin is one of the main components of foundry polyurethane binder; its structure and preparation condition determine the performances of polyurethane binder.
It was proved that custom designed framework could solve the clinical dilemma of severe dentition attrition, food impaction and periodontitis, and the odontoptosis was repaired.
The measuring method of sand compactability in laboratory is analyzed,and a fast measuring method is designed,and the intelligent instrument for fast measuring sand compactability are developed.
Even the word coin, translates from the Latin "cuneus," meaning wedge, and was thusly named because early coins ressembled the wedges the dies used to coin coins.
Mainly uses in each kind of casting coating and in many kinds of ceramic colored glaze coating, serves as the parent metal the deflocculant, the thixotropic agent.