从1979年11月以来,在川崎知多厂用于小直径油管和钻杆的新型淬火和回火设备一直令人满意地运转着。为了得到加厚端温度的均匀分布和高生产效率,在淬火炉和回火炉中安装了快速加热装置。为了使壁厚达36毫米的厚壁管内外强化冷却,研制了一种水糟冷却淬火装置。用计算机和在线的NDI装置控制产品质量。 Since November 1979, new quenching and tempering equipment for small diameter tubing and drill pipe at Chita Satoru Factory has been operating satisfactorily. In order to obtain a uniform distribution of thickening end temperatures and high production efficiency, a rapid heating device is installed in the quenching furnace and the tempering furnace. In order to strengthen the cooling of thick-walled pipe with wall thickness up to 36 mm, a quenching device for water cooling was developed. Use computer and online NDI device to control product quality.