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多年来,锻造工厂使用的无砧座模锻锤一般采用四机架结构。这种结构的无砧座模锻锤,由于其机架细长,缺乏足够的刚性,并且需要严格而且繁多的维护保养工作。英国Massey公司新设计的一种Mark11型无砧座模锻锤克服了这些缺点。新结构无砧座模锻锤的操作动力采用压缩空气或蒸汽。该公司生产的这类无砧座模锻锤能发挥的模锻力为6000公斤米～4 0000公斤米。这种模锻锤的显著特点是,采用两个由重型钢板做成的管状立柱。这种立柱具有最大的强度,同时保证了机器结构的刚度。这种模锻
Over the years, forging factories using non-anvil-type forging hammer generally used four-rack structure. The anvilless die forging hammer of this construction, due to its elongated frame, lacks sufficient rigidity and requires rigorous and extensive maintenance work. A new type of Mark11 anvilless die forging hammer designed by the British company Massey overcomes these shortcomings. The new structure without anvil die forging hammer operating power of compressed air or steam. The company’s anvil-free die forging hammer can exert a forging force of 6,000 kg to 4,000 kg. A striking feature of this die forging hammer is the use of two tubular columns made of heavy gauge steel. This column has the greatest strength, while ensuring the rigidity of the machine structure. This forging