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叙述了粉末冶金摩擦材料加压烧结用设备钟罩式加压烧结护的技术改造。改造后的烧结炉，可提高产品质量，减少废品，并延长烧结炉的使用寿命，从而降低生产成本。
Describes the powder metallurgy friction material pressure sintering bell bellows pressure sintering technology innovation. After the transformation of the sintering furnace, can improve product quality and reduce waste, and extend the life of sintering furnace, thereby reducing production costs.