ISO 4309:2017 起重机 钢丝绳 保养、维护、检测和报废

标准编号：ISO 4309:2017

中文名称：起重机 钢丝绳 保养、维护、检测和报废

英文名称：Cranes — Wire ropes — Care and maintenance, inspection and discard

发布日期：2017-11

标准范围

ISO 4309:2017确立了起重机和起重机所用钢丝绳的维护、检查和报废的一般原则。除了关于储存、搬运、安装和维护的指南外，本文件还提供了多层缠绕的运行钢丝绳的报废标准，现场经验和测试均表明，卷筒交叉区的劣化明显大于系统中任何其他钢丝绳段的劣化。它还提供了更现实的报废标准，包括钢丝绳直径的减小和腐蚀，并给出了评估钢丝绳中任何位置劣化综合影响的方法。ISO 4309:2017适用于以下类型起重机上使用的绳索，其中大多数在ISO 4306-1中定义:a） 缆索和门式缆索起重机；b） 悬臂起重机（立柱吊臂、墙壁或步行）；c） 甲板起重机；d） 井架和拉线起重机；e） 带刚性支撑的起重机；f） 浮吊；g） 移动式起重机；h） 桥式起重机；i） 门式或半门式桥式起重机；j） 门式或半门式起重机；k） 铁路起重机；l） 塔式起重机；m） 海上起重机，即安装在由海床支撑的固定结构或浮力支撑的浮动装置上的起重机。ISO 4309:2017适用于用于吊钩、抓斗、磁铁、钢包、挖掘机或堆垛作业的起重机、绞车和起重机上的绳索，无论是手动、电动还是液压操作。它也适用于起重机和起重滑车上使用的绳索。注:鉴于在卷筒上进行单层缠绕时，不建议仅使用合成滑轮或包含合成衬里的金属滑轮，因为在钢丝绳周围出现任何可见的钢丝断裂迹象或严重磨损迹象之前，不可避免地会出现大量内部断丝，没有给出此组合的丢弃标准。

ISO 4309:2017 establishes general principles for the care and maintenance, and inspection and discard of steel wire ropes used on cranes and hoists.In addition to guidance on storage, handling, installation and maintenance, this document provides discard criteria for those running ropes which are subjected to multi-layer spooling, where both field experience and testing demonstrate that deterioration is significantly greater at the crossover zones on the drum than at any other section of rope in the system.It also provides more realistic discard criteria covering decreases in rope diameter and corrosion, and gives a method for assessing the combined effect of deterioration at any position in the rope.ISO 4309:2017 is applicable to those ropes used on the following types of cranes, the majority of which are defined in ISO 4306？1:a) cable and portal cable cranes;b) cantilever cranes (pillar jib, wall or walking);c) deck cranes;d) derrick and guy derrick cranes;e) derrick cranes with rigid bracing;f) floating cranes;g) mobile cranes;h) overhead travelling cranes;i) portal or semi-portal bridge cranes;j) portal or semi-portal cranes;k) railway cranes;l) tower cranes;m) offshore cranes, i.e. cranes mounted on a fixed structure supported by the sea bed or on a floating unit supported by buoyancy forces.ISO 4309:2017 applies to rope on cranes, winches and hoists used for hook, grabbing, magnet, ladle, excavator or stacking duties, whether operated manually, electrically or hydraulically.It also applies to rope used on hoists and hoist blocks.NOTE In view of the fact that the exclusive use of synthetic sheaves or metal sheaves incorporating synthetic linings is not recommended when single-layer spooling at the drum, due to the inevitability of wire breaks occurring internally in large numbers before there is any visible evidence of any wire breaks or signs of substantial wear on the periphery of the rope, no discard criteria are given for this combination.

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