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钛合金铸件具有比强度高、精度高、重量轻、耐腐蚀等优点。民用工业采用钛合金铸件,应尽量提高金属利用率,降低生产成本;而宇航工业则要求铸件的致密度高;气、缩孔少;性能稳定可靠。 一、卤化物粘结剂石墨铸型 目前,铸钛工业中使用的铸型种类虽然很多,但对大中型的钛铸件,大多采用捣实石墨型。采用各种不同粒度的石墨粉与某些有机碳质粘结剂,如合成脂肪酸残渣、酚醛树脂、煤焦油、沥青、淀粉等组成的混合
Titanium alloy castings with high strength, high precision, light weight, corrosion resistance and so on. The civilian industry uses titanium alloy castings, metal utilization should be as much as possible to reduce production costs; and aerospace industry requires high-density castings; gas, shrinkage less; stable and reliable performance. First, the halide binder graphite mold Currently, cast titanium industry, although the type of mold used in many, but large and medium-sized titanium castings, most of the use of tamping graphite type. The use of a variety of different sizes of graphite powder and some organic carbonaceous binder, such as synthetic fatty acid residue, phenolic resin, coal tar, asphalt, starch and other components of the mix