11 Aug,2025

The operating principle of stainless steel capillary tubes mainly involves the following aspects:

The operating principles of stainless steel capillary tubes can be summarized as follows: 1. Stainless steel capillaries are characterized by their slender tubular structure, with inner diameters ranging from 0.1 to 1 mm. 2. Their smooth inner walls minimize adsorption and reduce the risk of blockage. 3. The small tube diameter generates strong capillary action, enabling automatic liquid uptake and precise flow control. 4. The capillary pressure developed at the tube ends can overcome a certain gravitational head or flow resistance. 5. Capillary networks readily establish continuous capillary flows, offering accurate control with minimal energy loss. 6. Flow rate is influenced by tube diameter, liquid viscosity, and surface tension, allowing flow rate regulation through appropriate diameter design. 7. Capillaries can be used to transfer minute volumes of solution or to precisely control the addition of reagents in chemical reactions. 8. Complex capillary networks can be fabricated for integration into microfluidic analytical systems. 9. Stainless steel capillaries exhibit excellent corrosion resistance, making them suitable for conveying corrosive fluids. 10. They serve as indispensable foundational components in fields such as microfluidic control and microreaction technologies. In summary, stainless steel capillaries leverage capillary phenomena to achieve precise manipulation of liquids, finding widespread application in microfluidic systems.

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