ypsum is generally white powdery crystals, as well as gray and reddish yellow crystals It belongs to the monolithic crystal system In terms of composition, it is divided into dihydrate gypsum and anhydrous gypsum The ceramic industry mold production application is generally dihydrate gypsum It uses the characteristics of dihydrate gypsum that it loses part of the crystal water after being calcined at a low temperature of about 180 degrees Celsius, and becomes a dry powder, which can absorb w

GR2 titanium is a silver-white metal with a density of 4 5g cm3 (20℃) and a melting point of 1668℃ Gr2 Titanium and titanium alloy materials have the characteristics of good corrosion resistance, low density and high specific strength They are widely used in aerospace, chemical equipment, seawater desalination, sports goods, medicine, machinery manufacturing, daily necessities and military fields

Implement the 6S management mode in the mechanical and electrical professional machining training teaching of higher vocational colleges, organically combine knowledge, ability,

In order to solve the machining problems of gray iron casting in a company, the components and properties of foundry pig and castings were analyzed by optical microscope, scanning electron microscope, Brinell hardness, micro Vickers hardness and spectrum analysis

As a vital component of a car, the wheel has a direct impact on the driving and safety performance of the car With the continuous improvement of the degree of mechanization in my country, machining methods have been basically used in the production and processing of automobile wheels,