According to the staff of our after-sales service, sometimes there are some technical terms that you can't understand when you go to the customer's friend to check the brick machine equipment. Today, our company introduces you to the necessary knowledge when testing and repairing the cement brick machine. It is necessary to understand the necessary mechanical knowledge when testing and repairing the bricks, so that you can explain some problems more clearly in daily production! Yixin free brick machine website: http://. Eptfe Material Properties,Ptfe And Eptfe,Ptfe Membrane Sheet,Eptfe Gasket Material Cixi Congfeng Fluorine Plastic Co.,Ltd , https://www.cfptfeseal.com
1. Spool type valve spool (cylindrical valve core): A part that cooperates with a cylindrical sliding surface to open and close a flow path when it moves in the axial direction.
2, static seal: used for the static part to prevent liquid leakage.
3. Circuit diagram: A hydraulic circuit diagram represented by a hydraulic graphic symbol.
4. Drainage: The return of oil or such oil from the channel (or pipeline) in the hydraulic component to the fuel tank or current collector.
5. Hydraulic station: A hydraulic source device consisting of a hydraulic pump, a drive motor, a fuel tank, an overflow valve, or the like, or a hydraulic device including a control valve. 
6. Hydraulic circuit: A hydraulic device consisting of various hydraulic components with certain functions.
7. Impact pressure: The maximum value of the rising pressure during the transition.
8. Oil leakage: A small amount of oil that flows out from the part that should be sealed under normal conditions.
9. Rated pressure: The highest pressure that can be used continuously.
10. Back pressure: the pressure applied in the opposite direction of the oil return side of the hydraulic circuit or the pressure acting surface.
11. Dynamic seal: used for sealing the opposite sliding part.
12, fluid clamping phenomenon: inside the spool valve, etc., due to the uneven flow, the pressure distribution on the central axis is unbalanced, the valve core is pressed against the valve body (or valve sleeve), so that it can not move The phenomenon. 
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Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn