How to measure the purity of single boron

How to measure the purity of single boron

Monomer boron is dark brown or black powder, crystalline boron is relatively inert, and amorphous boron is active. Monomer boron is relatively high in hardness and has a very high resistance. It is commonly used in the manufacture of the ele...
what is Roller Bearing?

what is Roller Bearing?

What is Roller Bearing ? Roller bearing is a type of bearing with the journal rotating in circumferential contact with a number of rollers mounted on locating rings. Roller bearings can be preloaded to achieve good accuracy and rigidity. An...
Brief Knowledge of Cylindrical Roller Bearing

Brief Knowledge of Cylindrical Roller Bearing

Brief Knowledge of Cylindrical Roller Bearing Cylindrical Roller Bearing: Rolling body is the cylindrical roller. The inner structure of cylindrical roller bearings is arranged the roller in parallel. There are isolation blocks between roll...
The Introduction of Tapered Roller Bearing

The Introduction of Tapered Roller Bearing

The Introduction of Tapered Roller Bearing Tapered roller bearings are generally used to support combined load mainly consisting of radial load. The bearing capacity depends on the angle of outer ring raceway, the larger the Angle, the grea...
Effect of Superplasticizer On Long-Term Performance of Concrete

Effect of Superplasticizer On Long-Term Performance of Concrete

Different water-reducing agents have certain effects on the strength and late strength of the hardened cement paste. The high-efficiency water reducing agent can effectively reduce the mixing water consumption of the concrete mixture, and ha...
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