| 摘要 |
A sling for industrial lifting made of a load-bearing core (1) and a cover (2). The cover (2) protects the plurality of yarns (3) that make-up the core (1). Each core yarn (3) is made of a number of core threads (4) twisted together. The core yarns (3) are twisted together where the twist is in the. same direction as the individual core strands and a different direction than the twist of the cover (2). The present invention describes the method of twisting the core yarns (3) together by inserting core yarns (3) substantially parallel into a cover (2) that has a twist opposite of each core strand. As the core strands are inserted into the cover (2), the twists of the individual core yarns (3) interact with the twist of the cover (2), resulting in the core yarns (3) twisting together.
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