There is no bubble at a certain sintering temperature

This is due to the speed of the blank's initial outer surface moisture to dispersion of the internal moisture, follow the time of the moment, the outer surface moisture content decreases, the outer surface of the blank increases, if the outer water content is increased, if the blank base has residual closure.It will bubble at the high temperature. 

When sintered, there is no bubble at a certain sintering temperature, this temperature is called a connational temperature, transcending this temperature, and the foaming rate will gradually advance with the progress of the sintering temperature. After the blank is drawn, the body is poor in the blank, and the magnet is simply foamed when the outer water rate is relatively large.

Today, I will tell you how to prevent magnet bubbles. Today, I will tell you here, let's see it next time. If the boy, the difference in the water rate is strong magnet suppliers gradually cut, and the bubble is gradually cut. in the second fine mill, the larger the particle size, the more simple and small water, the smaller the foam rate of the magnet.

The magnet can generate a magnetic field, which has characteristics such as iron, nickel, and cobalt. Another reason for bubbling is that the pre-bobbin is generated in the breakage technology to generate Fe2O3 due to crushing, grinding, and the mixture is sintered, according to 6FE203 = 4FE304 + O22FE2O3 = 4FeO + O2 reactivation, When this Fe2O3 is intensely reduced to FeO, the divided O2 cannot be discharged, and the blank is also bubbles. 

A well-ventilated sintering furnace, the magnet is also prone to the foaming object is to prevent the method of preventing magnet bubbles, hoping to help everyone. Follow the advancement of the pre-feeding temperature, the cause of the bubble is also advanced.The ingredient of the magnet is iron, cobalt, nickel and other atoms, and the internal structure of the atom is special, which itself has a magnetic moment.