YCB arc gear pump works

YCB arc gear pump rely on the work of the pump cylinder and the meshing gear formed between the volume change and movement to transfer liquid or make the pressure booster pump.
External meshing gear pump structure of a pair of intermeshing gear and the pump cylinder to the suction chamber and the discharge chamber separated from the gear rotation, the suction chamber side gear teeth off each other at the interdepartmental volume gradually increased, reducing the pressure, Liquid under pressure into the interdental. As the gear rotates, the liquid between the teeth is led to the discharge chamber, whereupon the volume between the teeth on the discharge chamber side gradually decreases to discharge the liquid, and the gear pump is suitable for conveying solid particles. Corrosive. Lubricating fluid with a wide range of viscosities. Pump flow up to 300 m3 / h and pressure up to 3 x 107 Pa. It is usually used as a hydraulic pump and transportation of various types of oil. Gear pump structure is simple and compact, Easy to manufacture, easy to maintain and self-priming, but with large flow and pressure pulsations and noises. Gear pumps must be equipped with safety valves to prevent damage to the pump outlet pressure beyond its allowable value for some reason, such as blockage of the discharge pipe Pump or prime mover
One. How it works:
YCB circular arc gear pump is a kind of positive displacement pump composed of two gears, the pump body and the front cover and the back cover form two closed spaces. When the gear rotates, the volume of the space on the side of the gear disengaging becomes larger and becomes a vacuum, Inhaled, the volume of the space on the meshing side of the gear decreases from large to small, and the liquid is squeezed into the pipe, and the suction chamber and the discharge chamber are separated by the meshing lines of the two gears.
The pressure at the outlet of the gear pump depends entirely on the resistance of the pump.

Two. Operation and maintenance (1) Check before starting all flanges, joints tightness.
(2) Disc drive coupling, no friction and collision sound.
(3) The first start should be injected into the pump liquid.
(4) should be fully open before inhalation and discharge of the valve in the pipeline, closed valve is strictly prohibited to start.
(5) After verifying the direction of motor rotation, start the motor.

YCB arc gear pump common failure and maintenance methods:
(1) Symptom: The pump can not discharge the cause of the malfunction: a Rotation in the opposite direction: b Suction or discharge valve closed: c No inlet or low pressure at the inlet: d Viscosity too high, the pump can not bite countermeasures: a confirm the direction of rotation: b confirm the valve is closed: c check the valve and pressure gauge: d check the viscosity of the liquid to low-speed operation by the speed ratio of the flow rate is there, if the flow, the inflow is insufficient.
(2) Symptom: Insufficient pump flow Cause of malfunction: a Suction or discharge valve closed: b Inlet pressure low: c Outlet line blocked: d Stuffing box leak: e Speed ​​is too low Countermeasure: a Check if the valve is closed: b Check if the valve is closed Open: c confirm the discharge volume is normal .d tighten: a large number of leaks affect production, should stop running, disassembly inspection: e check the actual shaft speed:

When the block enters the cavity, the press quickly descends. When the upper and lower molds are matched, the required molding pressure is slowly applied, and after a certain curing system, the molding of the product is finished. During the molding process, various molding process parameters and press operating conditions should be reasonably selected.

Since the SMC is a fast curing system, the quick closing of the press is important. If the press is closed too slowly after feeding, it is easy to appear pre-cured patch on the surface of the product, or it may be short of material or oversized. While achieving rapid closure, the mold closing speed should be carefully adjusted at the end of the press stroke to slow down the closing process and facilitate the exhaust.

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