A press brake is a piece of manufacturing equipment that is used to bend sheet metal. A press brake is typically narrow and long so that large pieces of sheet metal can be bent by it. A press brake bends sheet metal by lowering a punch onto sheet metal that has been positioned on top of a die. The metal may be bent several times by a press brake until the desired form has been achieved. Press Brake,Cnc Press Brake,Metal Bending Machine,Hydraulic Press Brake Jiangsu Hoston Machine Tools Co., Ltd. , https://www.haostonmachinetools.com
1. Use soft water such as snow water and rain water as cooling water as much as possible. River water, spring water, and well water are all hard water, contain many kinds of minerals, and will precipitate out when the water temperature rises. It is easy to form scale in the cooling system, so it cannot be used directly. If you really want to use this type of water, it should be boiled, precipitated, and used for surface water. In the absence of water to make up, use clean, contaminated soft water.
2. Maintain proper water surface, that is, the upper water room shall not be lower than 8mm below the upper mouth of the inlet pipe;
3, master the correct method of adding water and discharging water. When the diesel engine overheats and lacks water, it is not allowed to add cold water immediately, and the load should be removed. After the temperature of the water drops, it is slowly added in a trickle under the operating state.
4. Maintain the normal temperature of the diesel engine. After starting the diesel engine, the diesel engine can only start working when it is warmed up to 60°C (only when the water temperature is at least 40°C or above, the tractor can start empty running). The water temperature should be kept in the range of 80-90°C after normal operation, and the maximum temperature should not exceed 98°C.
5, check the belt tension. With a force of 29.4 to 49N in the center of the belt, the amount of belt sinking of 10 to 12mm is appropriate. If it is too tight or too loose, loosen the generator bracket fastening bolts and adjust the position by moving the generator pulley.
6. Check the leakage of the water pump and observe the leakage of the drain hole under the cover of the water pump. The leakage should not exceed 6 drops within 3 minutes of stopping. If it is too high, the water seal should be replaced.
7. The pump shaft bearing should be lubricated regularly. When the diesel engine is working for 50 hours, butter should be added to the pump shaft bearing.
In addition, the user needs to be aware that the cooling system scale should be cleaned up to about 1000 hours of engine operation. I hope the above introduction can help the user.
Press brakes can make a variety of different bends on many different types of metals. When setting up a bending process, it is important to consider the metal type being bent, the die, the punch, and the bending force.
The metal type is important to understand because of the differing physical properties among metals. For instance, a high carbon steel will generally be less bendable by a press brake than many aluminum alloys because of the differences in ductility and strength. Metals typically have a recommended minimum bend radius that the material can be bent to without damaging it.
The die and the punch used on the press brake both have a large impact on the bending process. The die is hollow material that the metal is placed on top of prior to bending. It is a very hard and strong material that is near in shape to the desired shape of the metal being bent. The punch is a solid material that is lowered down onto the metal. Since the pressing action of the punch onto the metal and the die are what causes the metal to bend, both shapes must be accurately suited to the bending job. The correct metal shape following a press brake operation is dependent on the size and shape of the punches and dies. The dies and the punches are typically designed in such a way that they can be interchanged easily to accommodate a wide array of jobs.
Use and Maintenance of Cummins Generator Cooling System
Use and Maintenance of Cummins Generator Cooling System Did You Know? The deterioration of the technical state of the diesel engine cooling system will directly affect the normal operation of the diesel engine. Deterioration of the technical condition is mainly manifested in the fact that the scale in the cooling system makes the volume smaller, the circulation resistance of the water increases, and the heat conductivity of the scale deteriorates, so that the heat dissipation effect is reduced, the temperature of the engine is high, and the formation of scale is accelerated. In addition, it can easily cause oxidation of the engine oil and cause carbon deposits such as piston rings, cylinder walls, valves, etc., causing increased wear. Therefore, in the use of the cooling system must pay attention to the following points: