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上海轴承锻造厂进行温挤压轴承套塔形成形工艺的研究,使热锻工艺加工余量大、材料利用率低、能量消耗多、劳动条件差等缺点得以克服。一次温挤成形可生产内外套圈各一只,在上海轴承行业属首创。温挤后,锻坯几乎没有氧化脱碳,表面硬度在HRB98～100左右,不必再退火。材料利用率从原来的42.5％提高到53.8％,锻坯每套材料消耗降低38.3克,
Shanghai Bearing Forging Plant temperature extrusion bearing tower tower form forming technology research, the hot forging process allowance, low material utilization, energy consumption, poor working conditions and other shortcomings to be overcome. A warm extrusion can be produced within the outer ring one each, in Shanghai bearing industry is the first. After warm extrusion, forging billet almost no decarburization, the surface hardness of about HRB98 ~ 100, do not have to anneal. The utilization rate of materials increased from 42.5% to 53.8%, the consumption of forged material reduced by 38.3 grams,