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China, Chinese Jwms 150 Lab-Melt Spinning Equipment1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Chemical Fiber MachineLabMelt Spinning
Shanxi Jingwei Chemical Fiber Machinery Co.,Ltd
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Product Description Lab-melt spinning equipment is a mechanical device used to spin polymer melts into fibers, and it is suitable for polymers that can be heated to a molten state without significant decomposition.The structure of melt spinning equipment mainly includes the following parts: Hopper and screw extruder: Polymer chips enter the screw extruder from the hopper, where they are melted and pushed forward by the screw, then sent into the spinning box through a conduit.Spinning pump and spinneret: The melt is metered and delivered from the spinning box to the spinneret by the spinning pump. The spinneret filters the melt and evenly distributes it into each spinneret hole to form uniform filaments.Cooling system: The melt filaments meet cold air or are cooled in a water bath in the spinning window to solidify into fibers. The cold air is uniformly blown towards the filaments after passing through a high-efficiency filter, a regulating valve, and a flow guiding device.Oiling device: The as-spun fibers undergo oiling treatment to increase their flexibility and antistatic properties.Winding mechanism: The oiled fibers are wound on bobbins to complete the collection and packaging of the fibers.In addition, during the melt spinning process, the crystalline structure, crystallinity, crystalline morphology, and crystalline orientation of the fibers will all have an impact on the physical properties of the fibers.The principle of melt spinning equipment is to heat the polymer to a molten state, extrude it through spinneret holes to form filaments, then stretch and cool them to solidify into fibers. The melt spinning process can be divided into the following key steps: Preparation of spinning melt: First, fiber-forming polymers such as polyester, polypropylene, and nylon are heated to a molten state to form a stable melt.Extrusion of melt through spinneret: The melt flows stably into the spinning box through a metering pump, is filtered in the porous spinneret, and is extruded to form melt filaments.Stretching and cooling of filaments: The extruded melt filaments are stretched and thinned in the air, and quickly condensed and solidified into fibers by cold air in the temperature-controlled air box.Oiling and winding: The solidified filaments are oiled to increase their flexibility and antistatic properties, and then wound into a certain shape of rolls or evenly dropped into a silk bucket to complete the entire spinning process.In addition, during the melt spinning process, the role of the spinning assembly is very critical. It is responsible for filtering the melt to ensure that the melt is evenly distributed into each small hole of the spinneret to form uniform filaments. At the same time, to avoid thermal decomposition of the polymer at high temperatures, the melting equipment needs to control the melting speed and temperature properly.The characteristics of melt spinning equipment may include the following aspects: High-speed winding: The winding speed in the melt spinning process is relatively high. This is because after the melt filaments exit the spinneret holes, they need to be quickly stretched to the required fineness and fully cooled and solidified.No need for solvents: Melt spinning does not require the use of solvents and precipitants, so the process flow is shorter and the equipment is relatively simple.Simple process flow: Melt spinning is a one-component system, involving only heat transfer between the polymer melt filaments and the cooling medium without changes in composition, which makes the process flow relatively short.Wide applicability: As long as the melting point of the fiber-forming polymer is lower than its decomposition temperature and it can form a thermally stable melt, the melt spinning method can be used for molding.Types of equipment: There are two main types, one is filament spinning machine, and the other is staple fiber spinning machine. The number of holes in the spinneret of a filament spinning machine is generally from several to dozens, while a staple fiber spinning machine may have only one hole.Efficient filtration system: The cold air system in the melt spinning machine passes through a high-efficiency filter, a regulating valve, and a flow guiding device to ensure that the cold air is uniformly blown towards the filaments, making them solidify into fibers.Fiber-forming process: Different from solution spinning, the fiber-forming process of melt spinning is a curing process through heat exchange between the jet and the environment.Insulating property of polymer melt: Since polymer melts are generally dielectric materials with good insulation, this affects the application of melt electrospinning technology.ABOUT USShanxi Jinwei Fiber Intelligent Manufacturing Co., Ltd. is an enterprise specializing in the manufacturing of special fiber production equipment. Our company has strong financial strength, rich design experience, and strong research, and production capabilities.Our company located in Taiyuan, China. Our company is a high-tech enterprise. It covers an area of 80000 square meters, has more than 50 production lines, and employs over 1000 people. For over half a century, the company has been committed to the research and development of high-performance fiber production equipment and special fiber production equipment.We can provide various types of manmade fiber production and testing equipment for global customers (such as polyester, polypropylene, acrylic, nylon, vinylon, viscose, spandex, colorant, ceramic fiber, specialty fibers, non-woven fabrics); Manmade fiber post-processing equipment (polyester draw texturing machine, nylon draw texturing machine, Parallel drafting winding machine, etc.); Spare parts for manmade fiber equipment (such as extruder, metering pump, spinneret, etc., and our metering pumps can also be used in other industries such as chemical and polyurethane).Shanxi Jinwei Fiber Intelligent Manufacturing Co., Ltd. promise to providing the highest quality products and services to global customers.If you have any question, please contact us feel freely!
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