| 摘要 |
PROBLEM TO BE SOLVED: To absorb an external impact and at the same time, prevent a wear attributed to a friction with the outside from occurring by sequentially forming a plated layer, an impact-resistant resin layer consisting of polyolefin into which a carboxylic group is introduced and the wear-resistant resin layer consisting of a crystalline polyolefin, on the surface of an iron wire. SOLUTION: A plated layer 2, an adhesive layer 3, an impact-resistant resin layer 4 and a wear-resistant resin layer 5 are formed on the surface of an iron wire 1. The iron wire 1 is preferably such as having 40 kgf/mm<2> or more tensile strength and 3 mm or more thickness. The plated layer 2 is galvanized or aluminum-plated. The adhesive layer 3 is formed of a polyolefin emulsion into which a carboxylic group is introduced and the impact-resistant resin layer 4 is formed of a polyolefin into which the carboxylic group is introduced, and further, the wear-resistant layer 5 is formed of a crystalline polyolefin. Consequently, the impact-resistant resin layer 4 absorbs an impact to be caused by falling rocks or the like and thereby, the wear-resistant resin layer 5 is prevented from becoming damaged. |
