论文部分内容阅读
伸性缸是伸性纸袋纸机伸性装置的关键件。伸性缸的缸体与缸盖材料均采用特种高合金铸铁。因此对缸体、缸盖材料提出特殊要求,要承受较大气压,缸面不能有任意铸造缺陷,即使发现小的针孔也不容许打入销钉修补。铸造部门针对伸性缸技术要求高的特点,对材料的配方进行小样试验分析,对造型、泥芯、烘模、铁水熔炼、浇注温度、速度、冷却等每一道工序都制订了严格操作规程。
Stretching cylinder is extensible bag paper machine stretching device key components. Extend the cylinder cylinder head and cylinder head material are made of special high-alloy cast iron. Therefore, the cylinder, cylinder head material put forward special requirements, to withstand greater pressure, cylinder surface can not have any casting defects, even if found small pinhole does not allow to enter the pin repair. Casting department for extensor cylinder technical requirements of high characteristics of the material formula for small sample analysis, modeling, mud core, baking mold, hot metal melting, casting temperature, speed, cooling and other processes have developed a strict operating procedures.