Mud Pump is generally used mainly in rural areas as river mud, manure, river water, slurry feed, suction and irrigation, instead of shouldering the pick and bear, and for drainage, drought purposes, can also be car head, the river mud, fertilizer production, Can also be used as a simple flow of rural fire pumps, fish ponds can also be used for clear ponds, ponds and oxygen. It can also be used in municipalities, chemical industry, printing and dyeing, medicine, shipbuilding, casting, food and other industries aspirated thick liquid, dirty liquid, paste, quicksand and urban river flow of sludge can be used as a mine exclusion of small gravel Of fluid. If the high-pressure water
Pump, water gun with the composition of hydraulic mechanized earthwork unit can be used for land leveling, river, ponds, air defense, underground excavation and other projects such as engineering. Mud pump failure reasons and troubleshooting Mud pump failure 1: The pump is not absorbent Reason: insufficient filling water, the pump air can not be discharged, the suction pipe leaks, the front liner and impeller clearance big solution: continue to pour water, check whether the pipeline Leakage, adjust the gap between the impeller and the liner mud pump failure 2: Pumping water slow cause: the front liner and the impeller gap, the outlet pipe can not seal the air, emptying over Solution: Adjust the gap, adjust the outlet pipe, install Vacuum pump mud pump failure 3: the water pressure is small, the flow is small Reason: the pump air, the gap between the impeller and the front liner, the clutch is not closed tight, impeller or liner wear Solution: empty the pump gas, adjust the gap , Adjust the clutch friction plate gap, replace the impeller or liner mud pump Fault 4: pump vibration Cause: pump shaft and
Diesel Engine (or motor) is not the heart, impeller imbalance, bearing damage Solution: adjust the concentricity, impeller balance test, Replace the bearing mud pump failure 5: impeller shaft wear fast reason: high-pressure pump head low, packing root dislocation, the pump shaft and the back cover do not mind to solve Replacing the high-pressure pump above the head of the mud pump, replacing the packing, adjusting the concentric mud pump failure 6: Pump wear fast Cause: poor construction environment (large particles), long distance, inlet pipe length Solution: , Add afterburner unit, shorten the length of the inlet pipe to reduce cavitation
Rolling Machine
Plate rolling is a process of continuous three-point bending of sheet metal using a plate rolling machine. The equipment puts the sheet material between the upper and lower work rolls when rolling. The upper roller is raised and lowered vertically, and the two lower rollers rotate and move horizontally relative to the axis of the upper roller. When the upper roll descends, the plate is plastically deformed and bent between the upper and lower work rolls. The continuous rotation of the bottom roller drives the steel plate to advance and retreat through the friction between the plate and the roller to complete the coiling.
1. Pre-bending. When the plate is rolled, there is a length at both ends of the plate that does not bend because it does not touch the upper roller. It is called the remaining straight edge. In the process, the minimum force arm at which the plate starts to bend is called the theoretical remaining straight edge. The bending form (symmetrical bending, asymmetrical bending) is related.
2. Centering. The purpose of centering is to make the generatrix of the workpiece parallel to the roller axis to prevent skew.
3. Roll round. Rolling is the main process of product forming, which is divided into two types: one-time feed and multiple feeds. Multiple feeds are commonly used for rolling thick plates. The number of feeds depends on the technological constraints (such as the maximum allowable deformation during cold rolling) and equipment constraints (such as non-slip conditions and power conditions). When the rebound of the cold coil is significant, a certain amount of overcoiling must be added.
4. Straightening round. The purpose of rounding is to make the curvature of the entire circle as uniform as possible to ensure product quality. The general rounding process is divided into three steps:
(1) Load: According to experience or calculation, adjust the work roll to the position of the required maximum correction curvature.
(2) Rounding: Roll the roller 1 to 2 turns under the corrected curvature to make the entire curling rate uniform.
(3) Unloading: gradually unload the load, so that the workpiece is rolled several times under the gradually reduced correction load.
Rolling Machine,Three-Roller Bending Machine,Four-Roller Bending Machine,Roll Forming Machine
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