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Lab Spinning Machine

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  • Force Analysis on Spinning Line in Wet Forming – Part 2: Radial Stress Analysis on Spinning Line
    Radial Stress Analysis on Spinning Line 1. Radial stress distribution on spinning line (a) The viscosity changes continuously along the radial direction; (b) Viscosity is constant along the radial direction; (c) Stretching viscosity has two fix
    04-17-2023
  • Force Analysis on Spinning Line in Wet Forming – Part 1: Axial Force Balance on the Spinning Line
    Axial Force Balance on the Spinning Line The axial force analysis on the wet spinning line is basically the same as that of the melt spinningThe balance of various forces on the spinning line should satisfy the following equation: Fr(X) + Fg(X) = Fs(X) + Fi(X) +Ff(X) + Fc + Fr(0)Fr(X) is the rheolog
    04-10-2023
  • Kinematics of wet forming – Part 3: Effect of Spinneret Stretch Ratio on Fiber Quality and Spinnability
    Effect of Spinneret Stretch Ratio on Fiber Quality and Spinnability Influence of Spinneret Stretch Ratio on Spinnability of Acrylic Fiber Formed by Sodium Thiocyanate Method Spinneret Stretch Ratio φa(%)-75-70-60-45Fineness (dtex)6.606.946.997.20Breaking strength (cN/dtex)2.462.051.771.70Break
    04-03-2023
  • Kinematics of wet forming – Part 2: Spinneret stretching in the wet forming zone
    Spinneret stretching in the wet forming zone 1. Characters of the stretched state of the spinning line in the forming zone (1) Spinneret stretch rate: a(%)= (VL-VO)/VO*100(2) Spinneret stretch ratio: ia= VL/VO= a/100+1(3) Average Axial Velocity Gradient: (x)a= (VL-VO)/Xe In the above formula
    03-27-2023
  • Kinematics of wet forming -Part 1: Velocity distribution on spinning line during wet forming
    Kinematics of wet forming Velocity distribution on spinning line during wet forming 1. Kinematic Analysis of Spinning Line in Wet Laying Process (1) Without stretching: The spinning solution sent out from the metering pump is pressed into the spinneret channel (The diameter of the spinneret
    03-20-2023
  • Process requirements for solvents used in spinning stock solution
    Process requirements for solvents used in spinning stock solution 1. From a technical point of view(1)The solvent must give the concentrated solution good rheology.(2)The less viscous an isocratic solution is or the more concentrated an isoviscosity solution is. 2. Considering economic effect and la
    03-13-2023

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