A fiberglass layer cloth tape winding method for metal casings with special-shaped structures

Abstract

The invention belongs to the technical field of FRP molding, and discloses a method for winding FRP layer cloth tapes of a metal shell with a special-shaped structure, aiming at a non-rotary structural member composed of a rotator and a rhombus-shaped special-shaped structure; Adhesive film on the surface of the body; use a three-axis winding machine to wind cloth tape on the non-rotating body structure; start winding from the rotating body, and then gradually transition to the winding of the diamond-shaped special-shaped structure; the maximum The rotation speed is 25r / min; the vacuum bag pressure forming technology is used to apply curing pressure to compress the cloth tape; wherein, the long side winding angle C1 of the diamond shaped cross section of the rhombus shaped structure, the short side winding angle C2, and the winding angle C of the rest of the parts Value range C2≤C<C1; width of winding tape B=ASinC, winding feed D=E / SinC; A is the thickness of the heat-proof layer, E is the thickness of the tape. The invention realizes the forming control of the special-shaped glass fiber reinforced plastic layer through effective parameter design and process control.

Description

technical field [0001] The invention relates to the technical field of FRP molding, in particular to a method for winding a FRP layer tape on a metal casing with a special-shaped structure. Background technique [0002] The FRP layer is set on the surface of the metal structure to form a composite structure product, which is to meet the needs of a wider range of applications. [0003] A certain metal shell gradually transitions from a rhombus to a circle from the front to the back, with an acute rhombus angle of about 58° at the front end and a circle at the rear end; that is, a non-rotating structural part composed of a rotary structure and special-shaped structural parts. It is necessary to form a certain thickness of FRP layer on the outer surface of the metal shell to prepare a composite structure product of special-shaped metal load-bearing structural parts and FRP layer. [0004] According to the structural characteristics of the product, the heat-proof layer cannot b...

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Problems solved by technology

[0005] The invention provides a fiberglass layer cloth tape winding method for metal shells with special-shaped structures, which solves the problems in the prior art that there is no fixed mode for parameter setting in the tape winding process, and the control strategy for parameter changes of special-shaped structural parts is not clear, which affects the winding quality. problems, achieved the technical effect of improving the quality of winding and post-forming