Characteristics of epoxy cross-wound pipe for drop fuse
Epoxy cross-wound tube for drop-type fuse is a kind of fiber-wound tube. Its characteristics are similar to epoxy tube. Both are insulation products and heat-resistant insulation. However, the use environment is different, the size is different, and the specifications are different. Then the form of expression is also different.
The drop fuse is made of glass fiber reinforced plastic fiber coiled core mold to change at a constant speed around its own horizontal axis. The trolley installed with the guide wire frame moves horizontally along the core mold according to a certain speed ratio, and the fiber yarn will follow the core mold. The cylinder body of the mandrel is coiled politely, and the cross-coiling is completed on the cylinder body and the head of the core mold, and the coiling angle is generally 45 degrees to 75 degrees. The characteristic of cross winding is that each fiber yarn piece corresponds to a tangent point on the circumference of the pole hole, and the same tends to connect between adjacent yarn pieces without ordering, and the fiber yarn pieces that do not conform to the tendency are ordered.
The fiber coiling process and the coiling rules for the drop fuse must be closely connected with the structural design. If the structure and size of the product do not match, the arrangement of fiber yarns on the surface of the core mold is not consistent. Therefore, the relative movement of the guide wire head and the core mold is not consistent, and the speed of the core mold and the moving speed of the guide wire head are severely fast. Than relationship. The guide wire head comes and goes once, the core mold needs to be rotated more or less by one angle, the two standard wires are overlapped intact, neither stacked nor separated from the seam, and evenly and continuously covered the surface of the core mold.