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湿纺喷丝板范例 Spinnerets Type
    公布工夫: 2016-10-14 16:20    

干纺喷丝头

湿法纺丝是将溶液法制得的纺丝熔液从喷丝的细孔中压出呈细流状,然后正在凝固液中固化成丝。因为丝条凝固缓,以是湿法纺丝的纺丝速度较低,一样平常为50100m/min,而喷丝板的孔数较熔体纺丝多,一样平常达40002000孔。

湿法纺丝的特性是工艺流程庞大,投资大、纺丝速度低,生产成本较下。一样平常正在短纤维消费时,一般,不能用熔体法纺丝的成纤高聚物,才用湿法纺丝和消费短纤维和少丝束。腈纶、维纶、氯纶和粘胶多接纳湿法纺丝。

 

 

Spinnerets for Wet Spinning

Process of wet spinning is used for polymers that need to be dissolved in a solvent to be spun. The spinneret is submerged in a chemical bath that causes the fiber to precipitate, and then solidify, as it emerges. The process gets its name from this "wet" bath. Acrylic, rayon, aramid, modacrylic, and spandex are produced via this process.[

A variant of wet spinning is dry jet-wet spinning, where the solution is extruded into air and drawn, and then submerged into a liquid bath. This method is used in Lyocell spinning of dissolved cellulose.

 

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喷丝头材质 Spinneret Material

 

 Ta

 不锈钢 Stainless Steel

 金铂合金 Compound of gold and platinum:
Au 70% Pt 30%; Au 60% Pt40%; Au 50% Pt 50%

 金铂铑合金 Compound of gold, platinum and Rhodium: 
Au 49.5% Pt 49.5% Rh 1%

 

喷丝头范例 Spinneret Type

 

  • 直壁帽形喷丝头

    Vertical Hat-shape Spinneret

     

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  • 环形喷丝头


            Ring Shape spinneret






  • 锥形喷丝头



            Taper-shaped Spinneret

 



  • 斜壁帽形喷丝头


            Conical Shape Spinneret







  • 球形喷丝头


            Spherical Spinneret

 






球形喷丝头构造新奇,喷丝孔散布正在具有肯定曲率半径的球形面上,喷出的丝束呈放射状,凝固前提好。适用于晴纶、维纶、粘胶、混纺纤维所要求的大面径,多孔数,高速高产的喷丝头。

The Sphere-shaped spinnerets have the advantages of new structure that holes scatter on the sphere surface with certain curvature radius, in order to radiate fibers, which leads to better condensation.  It is used for producing PAN, Vinylon, viscose fiber with high speed and productivity.


  • 瓦型喷丝头


            Tile-shaped Spinneret






 

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