Patent ID: 11944963
Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 6:
7. A preparation method for the coaxial capillary microfluidic chip according to claim 6, comprising the following steps:
(1) drawing and printing: drawing the substrate, the alignment platforms and the sliding platform with a drawing software; and printing with 3D printing technology;
(2) grinding the circular capillaries: grinding one end of each circular capillary into a desired conical head;
(3) installing and fixing: fixing both ends of the square capillary respectively in the square groove I and the square groove II; placing the ground end of one circular capillary in the square groove I through the circular groove I, exposing the ground end to the center of the window, and placing the unground end of the other circular capillary in the fixed tube; and
(4) adjusting position: pushing the sliding platform to approach the alignment platform I, placing the ground end of the other circular capillary in the square groove II through the circular groove II, and adjusting the relative distance between the two circular capillaries by sliding the sliding platform to align the circular capillaries coaxially in the square capillary.