我厂生产的50 t修井水龙头提环(见图1),除柄部两端面及销孔需要机械加工外,其余部位均为黑皮锻件。杆部直径较大,特别是在需要弯曲成型的部位直径达80mm(包括锻扁成型后的修磨量)。因此,在弯曲成型时困难较大。加上我们没有弯曲设备,过去,一直用人工弯曲,劳动强度大,一个班只能弯8件左右,而且质量也很难保证。现在在弯曲平台上,用10 t吊车吊弯成型,提环的质量和班产量也均有大幅度地提高。 I plant the 50 t workover faucet lifting ring (see Figure 1), in addition to both ends of the shank and pin hole machining, the remaining parts are black forgings. Rod diameter larger, especially in the need to bend the shape of the site diameter up to 80mm (including forging flat after the amount of grinding). Therefore, it is more difficult to bend and shape. Plus we did not bend equipment, in the past, has been bent with artificial, labor-intensive, a class can only bend 8 or so, and the quality is difficult to guarantee. Now bending platform, with 10 t cranes hanging bending, raising the ring quality and production have also been significantly improved.