ISO 1721:1974 岩石钻孔.冲击式深孔钻用加长的钻杆设备.1 1/16-1/4英寸（27和32mm倒锯齿螺纹设备）

标准编号：ISO 1721:1974

中文名称：岩石钻孔.冲击式深孔钻用加长的钻杆设备.1 1/16-1/4英寸（27和32mm倒锯齿螺纹设备）

英文名称：Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Reverse-buttress-threaded equipments 1 1/16 and 1 1/4 in (27 and 32 mm)

发布日期：1974-08

标准范围

指定设备的基本尺寸。给出组件列表；表格和图表:用于中央冲洗、六角型和凸耳柄型的柄适配器；延长杆；耦合套管；四个翼位；反支墩螺纹；用于延长杆的空心六角形杆；六角钻钢。

Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: shank adapters for central flushing, hexagon type and lug-shank type; extension rods; coupling sleeves; four-wing bits; reverse-buttress threads; hollow hexagonal bars for extension rods; hexagonal drill-steels.

标准预览图