Combined needle used for electrostatic spinning
An electrospinning and combined technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve the problems of easy clogging and multi-jet stability, etc., achieve simple design, increase production speed, and film quality high effect
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[0039] Example 1
[0040] A combined needle for electrostatic spinning is composed of a hollow stainless steel needle and a stainless steel needle base with a discharge tip. The hollow stainless steel needle includes upper and lower hollow ring tubes with different inner and outer diameters. The inner wall of the lower hollow ring tube is equipped with internal threads. The specific parameters are as follows: the upper hollow ring tube is 10mm high, the outer diameter is 2mm, and the wall thickness is 0.2mm; the lower hollow ring tube The height is 14mm, the outer diameter is 3.7mm, the internal thread is left-handed, and the cross-sectional shape of the thread is triangular.
[0041] The stainless steel needle base with discharge tip adopts a double-thread locking structure, and the screw part of the double-thread locking structure fastener has two threads with different pitches at one end. The bottom ring tube of the stainless steel needle base with discharge tip is 10mm high an...
Example Embodiment
[0043] Example 2
[0044] A combined needle for electrostatic spinning is composed of a hollow stainless steel needle and a stainless steel needle base with a discharge tip. The hollow stainless steel needle includes upper and lower hollow ring tubes with different inner and outer diameters. The inner wall of the lower hollow ring tube is equipped with internal threads. The specific parameters are as follows: the upper hollow ring tube is 11mm high, the outer diameter is 2.5mm, and the wall thickness is 0.25mm; the lower hollow ring The height of the pipe is 13mm, the outer diameter is 4mm, the internal thread is left-handed, and the cross-sectional shape of the thread is rectangular.
[0045] The stainless steel needle base with discharge tip adopts a double-thread locking structure, and the screw part of the double-thread locking structure fastener has two threads with different pitches at one end. The bottom ring tube of the stainless steel needle base with discharge tip is 9.5...
Example Embodiment
[0047] Example 3
[0048] A combined needle for electrostatic spinning is composed of a hollow stainless steel needle and a stainless steel needle base with a discharge tip. The hollow stainless steel needle includes upper and lower hollow ring tubes with different inner and outer diameters. The inner wall of the lower hollow ring tube is equipped with internal threads. The specific parameters are as follows: the upper hollow ring tube is 12mm high, the outer diameter is 4.3mm, and the wall thickness is 0.3mm; the lower hollow ring The tube has a height of 12mm, an outer diameter of 3.7mm, a left-handed internal thread, and a triangular thread cross-section.
[0049] The stainless steel needle base with discharge tip adopts a double-thread locking structure, and the screw part of the double-thread locking structure fastener has two threads with different pitches at one end. The bottom of the stainless steel needle base with discharge tip is 9mm high and the outer diameter is 4.3mm...
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