激光切割过程中，
气液增压泵提供的辅助气体压力越高越好吗？气液增压泵的辅助气体压力不是越大越好，但足够了。
In the process of laser cutting, the higher the auxiliary gas pressure provided by the gas-liquid booster pump, the better? The auxiliary gas pressure of the gas-liquid booster pump is not the greater the better, but it is enough.
在激光切割机的工作过程中，气液增压泵的辅助气体必须达到能够完全去除切割产生的废渣的压力。切割较厚的工件时，应降低气压，否则粘附在工件上的残渣会破坏切割。边缘。
In the working process of laser cutting machine, the auxiliary gas of gas-liquid booster pump must reach the pressure that can completely remove the waste residue produced by cutting. When cutting thick workpieces, reduce the air pressure, otherwise the residue adhered to the workpieces will destroy the cutting. Edge.
的确，增加辅助气体的压力可以提高激光切割机的切割速度，但有一个临界值。当达到临界值时，无论怎样提高气压，都不会提高切割速度，反而可能导致切割速度下降。
Indeed, increasing the pressure of auxiliary gas can improve the cutting speed of laser cutting machine, but there is a critical value. When the critical value is reached, no matter how to increase the air pressure, it will not increase the cutting speed, but may reduce the cutting speed.
为什么是这样？因为在高压辅助气体的情况下，高压气流速度不仅会增强冷却效果，还会导致气流中的间歇性冲击波干扰激光作用区的冷却。
Why? Because in the case of high-pressure auxiliary gas, the high-pressure air flow velocity will not only enhance the cooling effect, but also cause the intermittent shock wave in the air flow to interfere with the cooling of the laser action area.
气液增压泵的工作原理类似于增压器，对大直径气动活塞施加低的压力。当该压力作用于小面积活塞时，会产生高压。借助5/2气控换向阀，增压泵可连续运行。由单向阀控制的高压柱塞不断排出液体，增压泵的出口压力与空气驱动压力有关。
The working principle of gas-liquid booster pump is similar to that of supercharger, which exerts very low pressure on large-diameter pneumatic piston. When this pressure acts on a small area piston, a high pressure is generated. With the help of 5 / 2 pneumatic directional valve, the booster pump can operate continuously. The high-pressure plunger controlled by the check valve continuously discharges liquid, and the outlet pressure of the booster pump is related to the air driving pressure.
当驱动部分和输出液体部分之间的压力达到平衡时，增压泵停止运行，不再消耗空气。当输出压力下降或气驱压力升高时，增压泵会自动使用单个气控不平衡配气阀实现泵的自动往复运动，泵体气驱部分采用铝材制造合金。
When the pressure between the driving part and the output liquid part reaches balance, the booster pump stops running and no longer consumes air. When the output pressure drops or the gas drive pressure rises, the booster pump will automatically use a single pneumatic unbalanced valve to realize the automatic reciprocating motion of the pump. The gas drive part of the pump body is made of aluminum alloy.
接液部分根据不同介质选用碳钢或不锈钢。通常，泵有两个进气口和排气口。能在进气口产生低于常压（即大气压）的气压的气压称为“负压”；能在出风口产生高于常压的气压的气压称为“正压”。例如，真空泵常被称为负压泵，增压泵为正压泵。
Stainless steel or stainless steel shall be selected according to different liquid contact medium. Generally, the pump has two inlet and outlet ports. The air pressure that can produce air pressure lower than normal pressure (i.e. atmospheric pressure) at the air inlet is called "negative pressure"; The air pressure that can produce air pressure higher than normal pressure at the air outlet is called "positive pressure". For example, vacuum pump is often called negative pressure pump, and booster pump is positive pressure pump.
After explaining the pressure and working principle of gas-liquid booster pump in laser cutting, if you need to pay attention to our website www.sdjingtuo.com COM, let you get a satisfactory reply!
