为配合北京饭店汽车楼工程采用钢丝束镦粗锚具,我们在各级领导关怀下,在有关单位协作下,仅用了四个多月的时间,设计试制成功了BT—A冷镦机。BT—A冷镦机可镦直径φ5的高强度钢丝。它是由缸体、夹紧活塞、镦头活塞、蝶形弹簧和夹片等组成(见图1)。主 In order to tie up the steel wire bundle upsetting anchorages for the Beijing Hotel’s auto building project, we have taken more than four months’ time with the cooperation of the relevant units under the care of leaders at all levels. We successfully designed the BT—A cold heading machine. The BT-A cold heading machine can smash high-strength steel wire with a diameter of φ5. It consists of a cylinder block, a clamping piston, a hammer piston, a butterfly spring, and a clip and the like (see Figure 1). the Lord