Device and method for producing a spring from a fibre composite material

Device and method for producing a spring from a fibre composite material

  • CN 105,189,086 B
  • Filed: 12/06/2013
  • Issued: 11/06/2020
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
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1. Method for producing springs from fibre composite material, in which method a laminate strand consisting of fibres of the fibre composite material and impregnated with a curable liquid matrix material is shaped into a spring geometry, characterized in that a strand-shaped preform (20) is produced before shaping the impregnated wet laminate strand (2) in such a way that,in a continuous coating process a) an extruder (17) for extruding a melt (18) and a casting die (19) which encloses the laminated strand (2) in a closed manner are provided, the casting die (19) casting the extruded melt (18) continuously peripherally around the laminated strand (2) in order to apply a deformable protective sleeve (16) which encloses the impregnated wet laminated strand (2);

  • or in a continuous coating process b) a die (29) surrounding the laminated bundle (2) is provided for continuously shaping the metal strip (26), the metal strip (26) is pulled through the die (29) together with the laminated bundle (2), the metal strip (26) is continuously deformed in accordance with the continuously changing cross-sectional shape of the die (29) and is shaped around the laminated bundle (2) in order to apply a deformable protective sleeve (16) surrounding the impregnated wet laminated bundle (2).

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