Unloading gate operation

The feeding gate is a proportional valve, that is, a valve that can control the
switching speed of the valve. The proportional valve has a pilot valve, and the
pilot valve must be energized whether the valve is opened or closed. The
proportional valve is a valve controlled by 4~20mA signal, 4~12mA controls the
valve to close, and 12~20mA controls the valve to open.Vacuum
Hardening Stainless Steel The absolute value of the difference between the
current and 12mA determines the speed of the valve action. The larger the
absolute value of the difference, the faster the valve action; the smaller the
absolute value of the difference, the slower the valve action.Sintering
of B4C by Pressureless Liquid Phase Sintering Unloading gate operation
screen: The computer controls the power on and off of the pilot valve and the
input current of the proportional valve by comparing the set value of the
blanking gate with the actual value of the blanking gate, so as to realize the
precise positioning of the blanking gate. That is to say, when the deviation
between the set value and the actual value is less than 100 degrees, there is no
need to adjust the opening degree, and the unloading gate will not act. When the
deviation between the set value and the actual value is greater than degrees,
and the set value is greater than the actual value, the valve is opened; when
the deviation between the set value and the actual value is greater than
degrees, and the set value is less than the actual value, the valve is closed.
Vacuum Heat Treatment of Fasteners
There are 3 speed gears for forward and reverse valve action, which are high
speed, medium speed and low speed respectively. The larger the deviation value
is, the faster the valve action speed will be. When the difference between the
actual angle and the set angle is greater than 8 degrees, use high speed, when
it is 4~8 degrees, use medium speed, and when it is less than 4 degrees, use low
speed.Vacuum
sintering of transparent ceramics