Manufacturing method of centrifuge tube

During the experiment, centrifugal technology is often used to separate substances with different specific gravities. However, some liquids are relatively viscous, or the sediment is not firmly attached to the wall of the centrifuge tube. When the supernatant liquid is removed, the sediment is easy to pour out with the liquid.

The inner wall of the existing centrifugal tube is relatively smooth, and when the supernatant is poured, the precipitate is easily poured out with the supernatant, resulting in loss of the precipitate. In order to solve the problem of sediment loss, the prior art proposes a centrifugal tube that prevents sediment from being poured out. The centrifugal tube stops the half-circle around the inside of the tube by the inverted plate. During the specific centrifugal operation, the sediment is likely to be mainly concentrated in the area without baffles. In this case, the effect of the anti-falling plate is almost useless.
The prior art also proposes a centrifuge tube with a toothed bottom to enhance the adhesion of the sediment on the inner wall of the bottom of the tube. However, when the sediment adheres to the outside of the tooth, the sediment will also Follow the supernatant to flow out. In view of this, the purpose of the present invention is to provide a centrifuge tube that can prevent sediment from falling out.
Through long-term exploration and attempts, as well as many experiments and efforts, the inventor has continued to reform and innovate. In order to solve the above technical problems, the technical solution provided by this utility model is to provide a centrifuge tube, including a tube body, a gland or Sealing cap, the lower part of the tube body is a tapered part, the inner wall of the tube is provided with a first precipitation attachment area and a precipitation blocking protrusion, and the inner wall of the tapered part is provided with a second precipitation attachment area.
According to a specific embodiment of the centrifuge tube of the present invention, the first precipitation attachment area is a frosted surface, and the second precipitation attachment area is a frosted surface.

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