2015年10月19日星期一

Fiberglass stitched mat characteristics, classification and application

The characteristics of fiberglass stitched mat: the stitched mat increased the strength of the composites, reduced the weight, make the surface more smoother, and simplify hand lay molding operation.
The classification of fiberglass stitched mat
Uniaxial fabric
Only in the longitudinal direction of the fabric 0 (warp) or 90 (zonal) laid parallel to the direction of a roving and stitched into the fabric.
Biaxial fabric
in the longitudinal direction of the fabric0,90 or ± 45, any two of the four directions parallel to the laying of roving, each direction of each yarn layer to form an independent double-axial fabrics and stitching.
Multiaxial fabric
With the length of the fabric into four directions 0,90, ± 45 of any of the three multi-axial fabric laying parallel rovings, then stitched into four directions or.
With a combination of the stitching machine chopped machine, the roving sprinkle chopped and spread evenly, then sewn into the carpet.
Stitched composite mat
The uniaxial fabric, biaxial fabric, multiaxial fabric of any one of chopped strand mat and stitch on the stitch machine can be sewn into a 2-5 layer composite mat stitch.
The application of fiberglass stitched mat
In China, the largest user of the stitched fabric is FRP pipe with inner and outer reinforcement  for stitched chopped strand mat. In the automotive, refrigeration equipment, has been applied on the construction industry, from the process perspective, mainly in filament winding pipes, large molding, pultrusion, rtm, and a small amount of hand lay-up, but also has applications in the shipbuilding industry.

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