Non-Newtonian fluid dispersion device and method

Abstract

The invention discloses a non-Newtonian fluid dispersing device and method, and belongs to the field of precision / ultra-precision machining. The dispersing device comprises a connecting air pipe, a rotating platform, a polishing function liquid tank, a motion isolation air connector, an air pipe connector and an air pressure throttling valve. The polishing function liquid tank is connected with the rotating platform, a workpiece to be machined is connected with the polishing function liquid tank, and uniform dispersion of the non-Newtonian fluid polishing liquid is achieved through rotation of the polishing function liquid tank. The top end of the motion isolation gas connector penetrates through a center through hole of the rotating platform and is connected with the polishing function liquid tank through pipe threads, and the bottom of the motion isolation gas connector is connected with an external gas pump through a gas pipe connector. In the using process, the polishing solution can continuously and circularly move from top to bottom, and the uniformity of the polishing solution is guaranteed. The problem that the non-Newtonian fluid is easy to settle during shear thickening polishing can be solved, the method is simple, and the device is convenient to operate; dispersion of non-Newtonian fluids of different systems can be achieved by changing the gas flow rate, and the polishing process cannot be disturbed.

Description

technical field [0001] The invention belongs to the field of precision / ultra-precision machining, and relates to a non-Newtonian fluid dispersing device and method, in particular to a non-Newtonian fluid dispersing device and method for polishing. Background technique [0002] Shear thickening polishing technology is a new type of polishing technology that has emerged in recent years. Compared with other contact polishing methods, it has obvious advantages, such as low processing cost, stable process, good surface shape adaptability, high material removal efficiency, and the ability to obtain High-quality optical surfaces with little subsurface damage. Shear thickening polishing utilizes the shear thickening effect of non-Newtonian fluids. The shear thickening fluid it uses is a non-Newtonian fluid formed by dispersing nanometer or micron-scale particles into polar media, considering environmental factors And economic factors, the commonly used polar medium is natural polyh...

AI Technical Summary

Problems solved by technology

However, in the actual use process, the polishing liquid system made of polyhydroxy polymer is unstable and prone to sedimentation, thus affecting the polishing effect

[0003] Chinese patent CN202010492304.X discloses a shear-thickening polishing solution, which improves the overall dispersion by adding graphene oxide to the shear-thickening polishing solution, although this method improves polishing to a certain extent The uniformity of the liquid, but the problem of sedimentation of the polishing liquid during the polishing process has not been resolved

Chinese patent CN201320391499.4 discloses a polishing device based on the non-Newtonian fluid shear thickening mechanism. This method uses the rotation of the dragon blade to drive the polishing liquid to move continuously, so as to achieve the effect of preventing settlement. The overall volume of this device is huge. Applicable to the scene where the amount of polishing liquid is small, and the production is complicated, the processing cost is too high, and the economy is poor

[0004] At present, there is no good dispersion method for the problem of easy settlement of non-Newtonian fluids

Images