论文部分内容阅读
我厂于1976年购进的制氧机组,其中1-5/55型空气压缩机皮带轮,因当时生产厂无合格品,而我厂又急需该设备,因此将一废皮带轮带回,准备修复使用。此皮带轮是由两个半圆件(共8根筋)用螺栓联接而成,在三根筋的根部有较深的裂纹(见图)。补焊工艺如下: 1.清理裂纹,并开U形坡口(见A-A放大图)。坡口应尽量深,以便焊透。坡口宽40～50毫米,坡口面角度25°～30°。开好坡口后,用φ8毫米钻头钻孔攻丝,孔距约20毫米。孔中栽入φ8毫米的套丝钢筋。
I plant purchased in 1976 oxygen unit, of which 1-5 / 55 air compressor pulley, because the factory did not produce qualified products, and I plant the urgent need for the equipment, so a waste belt belt back, ready to repair use. The pulley consists of two semi-circular pieces (a total of eight tendons) are bolted together, there are deep cracks in the root of the three ribs (see photo). Repair welding process is as follows: 1. Clear the crack, and open the U-shaped groove (see A-A enlarged view). Bevel should be as deep as possible, in order to penetration. Bevel width 40 ~ 50 mm, bevel angle 25 ° ~ 30 °. Open a good bevelling, drilling with taper φ8 mm drill hole spacing of about 20 mm. Hole into the Φ8 mm of silk wire reinforcement.