Nozzle assembly for ultra-high molecular weight polyethylene fiber network yarn

Abstract

The invention discloses a nozzle assembly for ultra-high molecular weight polyethylene fiber network yarn. The nozzle assembly for ultra-high molecular weight polyethylene fiber network yarn includesan assembly housing and a ceramic nozzle. The housing is provided with a groove. The ceramic nozzle is arranged in the groove. The housing is provided with a metal pressing plate. The ceramic nozzle is fastened in the housing and the metal pressing plate by a bolt. By improving conventional network yarn nozzle, the ultra-high molecular weight polyethylene fiber network yarn can be sufficiently scattered and entangled so that the residence time of tows in the network nozzle is reduced, the winding speed is improved and the production efficiency is increased. Two jet holes can make the network yarn sufficiently scattered and entangled, increase the winding speed, maintain a moderate degree of network, and help improve the quality and yield of ultra-high molecular weight polyethylene fiber network. The nozzle assembly has good practicability.

Description

technical field [0001] The invention relates to the field of network yarn devices, in particular to a nozzle assembly for ultra-high molecular weight polyethylene fiber network yarn. Background technique [0002] Ultra-high molecular weight polyethylene fiber is a high-strength and high-modulus fiber, which is made of molecular weight of 10 6 The above polyethylene powder is swollen with industrial white oil and wet-spun. It has extremely high crystallinity after stretching and deformation. Because its macromolecules are non-polar linear chain structure, it has excellent high strength. , high modulus and stable chemical properties also make this kind of fiber often used as reinforced composite materials. [0003] When UHMWPE fibers are used to prepare composite materials, the fibers in the loose state are easy to knot or produce fuzz due to friction, which makes it difficult to process the textile into a certain arrangement state. In order to make the fibers can be processe...

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Problems solved by technology

[0003] When UHMWPE fibers are used to prepare composite materials, the fibers in the loose state are easy to knot or produce fuzz due to friction, which makes it difficult to process the textile into a certain arrangement state. In order to make the fibers can be processed and manufactured smoothly, The commonly used method is to use fiber network yarn, and the network degree is an important indicator affecting the quality of the network yarn. If the network degree is too small, the cohesion between the monofilaments will be poor during weaving, and it will not be able to withstand the reed in the loom. The friction and collision of the heald winding will affect the running rate of the loom. If the network degree is too large, the wool will increase and the fabric will feel hard, which will also bring difficulties to weaving.

[0004] Due to the high symmetry of its molecular chain and the unbranched structure, the ultra-high molecular weight polyethylene fiber has the above high-strength properties, but because of the advantages of this molecular chain, it also makes the ultra-high molecular weight polyethylene Compared with conventional fibers such as polyester fibers, fibers are not easy to form a better network degree

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