隔膜阀的主要生产工艺(中英版)[精选].doc

隔膜阀的主要生产工艺The main production process diaphragm valvesA. 铸造工艺A. Casting Processa.熔炼:采用双联熔炼，冲天炉为直统 型单排风口。a.melting: the use of double-melting cupola system for straight single exhaust outlet.b.造型：全部采用机械造型。有一条 用于生产5以下口径隔膜阀的半机械化生 产线；6以上的铸件则采用单机造型，置于 浇铸线上浇注，精度要求高的小型铸件采 用壳型铸造方法生产。b.modeling: All mechanical modeling. There used to produce a 5 diameter diaphragm following semi-mechanized production line; 6 above the casting is used stand-alone model, placed in the casting online casting, high precision small castings produced using shell casting method.造型机用的型板为快换式型板;模型采用金属模和塑料模,也有少量的木模。型板尺寸:造型线 上为 500mm X 400mm;单机为 1200mm X 800mm。Molding machine with a plate for quick-change plate; model uses a metal mold and plastic, but also a small amount of wood mold. Plate size: styling line for 500mm X 400mm; standalone is 1200mm X 800mm.c.型芯：芯砂多数采用有机粘结剂，在造芯工艺上可分为三种类型:①形状简单,精度要求不高 的砂芯采用油砂，由人工打制，连续烘炉进行烘干;②形状细小，精度要求高的砂芯采用树脂砂，以 煤气加热的热芯合射芯机成型;③尺寸较大的且精度要求高的砂芯，用树脂自硬砂木制芯合人工制 作，然后自然固化。由于大量采用树脂砂制芯，所以铸件内腔质量较高。c. core: core sand most organic binder in making the core process can be divided into three types: ① simple shape, less precision sand cores using oil sands, chipped by hand, continuous ovens were drying; ② shape small, high precision sand cores resin sand to the hot core gas heating combined core shooting machine molding; ③ larger size and high precision sand core, with a wooden core resin Sand co-produced artificially, then naturally cured. Due to extensive use of resin sand core, so the higher the quality of the casting cavity.d.清整:铸件落砂在去除冒口、下边、毛刺后用砂轮磨平，最后用抛丸处理。d.clearing: casting off the sand after the removal of the riser, below, glitches with polished wheels, and finally shot blasting.B.铸件的质量控制B. Quality control of the casting首先对金属原材料进行化学分析，采用多层次把关，成份合格后方可使用，主要是控制硫磷的 含量。First of metal raw materials for chemical analysis, multi-level checks, before use of qualified ingredients, mainly to control the content of parathion. 对熔炼茨铁水，每小时要分析一次，采用具有空调设备的恒温室内的分光光度计分析；铸件的 机械性能