岩石钻孔 深孔冲击凿岩用加长钻杆钎具 1 1/16和1 1/4英寸(27和32mm)反向锯齿螺纹
详细信息
- 中文主题词：采掘设备 ; 不对称螺纹 ; 钻井设备 ; 加长杆件 ; 冲击式钻探 ; 钻探设备 ; 采掘 ; 凿岩机
- 标准号：ISO 1721-1974
- 发布日期：1974-08-01
- 英文题名：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)
- 英文主题词：Asymmetrical threads ; Boring equipment (earthworks) ; Drilling equipment ; Lengthening bars ; Mining ; Mining equipment ; Rock drillings
- 标准状态：现行
- 发布单位：IX-ISO
- 载体形态：6P.;A4
- 中国标准分类号：D81
- 国别：国际标准化组织
文摘
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.