滑阀式真空泵:
Slide valve vacuum pump:
主要广泛应用于拉晶、镀膜、冶金、热处理、浸渍、干燥、蒸馏、练泥、航空航天模拟试验等新材料、新技术、新工艺必须在真空条条下的生产与研制中。
Mainly widely used in the production and development of new materials, technologies, and processes such as crystallization, coating, metallurgy, heat treatment, impregnation, drying, distillation, mud refining, aerospace simulation experiments, etc. must be carried out under vacuum conditions.
滑阀真空泵即可单独进行使用，也可作为罗茨真空泵、油增压泵、油扩散泵的前级泵来搭配使用，但当抽吸有腐蚀性的黑色金属且对真空油起化学反应、并含有大量蒸汽和大量粉尘的气体时，必段要安装其它需附加的装置。
The slide valve vacuum pump can be used alone, or as the front pump of Roots vacuum pump, oil Booster pump, and oil diffusion pump. However, when pumping corrosive Ferrous, causing chemical reaction to the vacuum oil, and containing a large amount of steam and dust, other additional devices must be installed.
优点：相比旋片式真空泵，它的耐用性要比前者更高好几倍且抽气速率大，但相对也会更高一点；
Advantages: Compared to rotary vane vacuum pumps, their durability is several times higher and their pumping rate is large, but their prices are relatively higher;
如果是用来作为抽除密闭容器的气体的基本设备之一，那它可以单独使用，同时也可作为增压泵、扩散泵、分子泵的前级泵来配套使用，该型泵广泛应用于冶金、机械、电子、化工、石油、医药等行业的真空冶炼、真空镀膜、真空热处理，真空干燥等工艺过程中。

If it is used as one of the basic equipment for removing the gas from the closed container, it can be used alone, and can also be used as the front pump of Booster pump, diffusion pump, and molecular pump. This type of pump is widely used in vacuum smelting, vacuum coating, vacuum heat treatment, vacuum drying and other processes in metallurgy, machinery, electronics, chemical industry, petroleum, medicine and other industries.
旋片式真空泵:
Rotary vane vacuum pump:
该泵估具有结构紧凑，体积小，重量轻，噪音低，振动小等优点。所以它比较适合用来作为扩散泵的前级泵，而且更适合在精密仪器配套的实验室中来使用。例如：质谱仪器，冰箱流水线，真空冷冻干燥机等。
The pump has the advantages of compact structure, small volume, light weight, low noise, and low vibration. So it is more suitable as a front stage pump for diffusion pumps, and is more suitable for use in laboratories equipped with precision instruments. For example: mass spectrometry instruments, refrigerator assembly lines, vacuum freeze-drying machines, etc.
罗茨真空泵:
Roots vacuum pump:
这是一款旋转式的变容真空泵，必须跟前级泵配合后才能使用，它在较宽的压力范围内时，会具有较大的抽速，而且在对被抽除含有灰尘和水蒸汽气体也不地太敏感。
This is a rotary variable capacity vacuum pump that must be used in conjunction with the front stage pump. It has a large pumping speed over a wide pressure range and is not very sensitive to the removal of gases containing dust and water vapor.
广泛用于冶金、化工、食品、电子镀膜等行业。适合跟真空机组主泵来搭配的前级泵辅泵有如下几种：水环式真空泵，滑阀真空泵，立式无油真空泵，分子真空泵等等。
Widely used in industries such as metallurgy, chemical industry, food, electronic coating, etc. There are several types of front stage pump auxiliary pumps suitable for matching with the main pump of the vacuum unit: water ring vacuum pump, slide valve vacuum pump, vertical oil-free vacuum pump, molecular vacuum pump, and so on.
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