标准摘要
[中文适用范围]： 本文件规定了仅用于农业饲料作物收割（如 ISO 4254-12 中定义）的安装式、半安装式、牵引式或自走式转盘割草机和转鼓割草机上用作切割元件的刀片的要求。 它规定了此类叶片的测试和标记要求。 本文件不适用于以下设备上使用的刀片： ——连枷割草机； ——ISO 4254-13 涵盖的大型旋转割草机； ——臂式大型旋转割草机； ——步行控制机动割草机； ——ISO 5395 系列涵盖的割草机。 注 1：本文件的主要目的是设定材料特性。 滚筒式割草机和圆盘式割草机上的刀片承受相当大的向心力和异物冲击。 因此，本文件中包含了用于检查材料脆性和韧性的弯曲测试和冲击测试。 注 2：本文件未规定尺寸要求。 [外文原描述]： This document specifies requirements for blades used as cutting elements on rotary disc mowers and rotary drum mowers used for forage crop harvesting in agriculture only (as defined in ISO 4254 - 12 ) that are mounted, semi-mounted, trailed or self-propelled. It specifies requirements for testing and marking of such blades. This document is not applicable to blades used on: — flail mowers; — large rotary mowers covered by ISO 4254 - 13 ; — arm-type large rotary mowers; — pedestrian-controlled motor mowers; — lawn mowers covered by the ISO 5395 series . NOTE 1 The main purpose of this document is to set material characteristics. Blades on rotary drum and rotary disc mowers are exposed to considerable centripetal forces and impacts with foreign objects. A bend test and impact test to check the brittleness and toughness of the material are therefore included in this document. NOTE 2 This document does not specify dimensional requirements.
英文名称Harvesting equipment — Requirements for cutting elements — Part 1: Blades used on rotary disc mowers and rotary drum mowers