| 精密铸造发展前景 |
| 添加时间：2017/7/24 15:20:46 浏览次数： |
| 熔模精密铸造是指用易熔材料制成可熔性模型，在其上涂覆若干层特制的耐火涂料，经过干燥和硬化形成一个整体型壳后，再用蒸汽或热水从型壳中熔掉模型，然后把型壳置于砂箱中，在其四周填充干砂造型，最后将铸型放入焙烧炉中经过高温焙烧，铸型或型壳经焙烧后，于其中浇注熔融金属而得到铸件。 Revestment precision casting is refers to the use of fusible materials meltability model, on which the coated with several layers of special refractory coating, after drying and hardening type to form a whole shell, reoccupy steam or hot water from the melt in the shell model, and then put type shells in the sand, dry sand by filling in all round its modelling, finally will be cast into the furnace after high temperature roasting, cast type or shell after roasting, and are casting in pouring molten metal. 熔模精密铸造获得的产品精密、复杂，接近于零件最后形状，可不加工或很少加工就直接使用，是一种近净形成形的先进工艺，是铸造行业中一项优异的工艺技术，其应用非常广泛。它不仅适用于各种类型、各种合金的铸造，而且生产出的铸件尺寸精度、表面质量比其他铸造方法要高，甚至其他铸造方法难于铸得的复杂、耐高温、不易于加工的铸件，均可采用熔模精密铸造铸得。 Revestment precision casting products for precision, complex, close to the final shape, can not machining or rarely used directly, is a kind of advanced net-shape forming technology, is an excellent technique in foundry industry, its application is very extensive. It is not only applicable to the various types, various kinds of alloy casting, and produce the casting dimension accuracy and surface quality higher than other casting methods, or even other casting method is difficult to cast the complex, high temperature resistant, not easy machining castings, all can use revestment precision casting wrought. 目前世界的熔模精密铸造成形工艺发展迅速、应用广泛，从目前的态势看，未来该工艺将来的发展趋势是铸件产品越来越接近零部件产品，传统的精铸件只作为毛坯，已经不适应市场的快速应变。零部件产品的复杂程度和质量档次越来越高，研发手段越来越强，专业化协作开始显现，CAD、CAM、CAE的应用成为零部件产品开发的主要技术。 The current world revestment precision casting forming technology has developed rapidly and widely applied, from the current situation, the future is the development trend of this technology in the future of the casting products is more and more close to the components, the traditional casting as a blank, only has not adapt to the market fast strain. The complexity of the components and quality level is higher and higher, development means more and more strong, professional collaboration began to emerge, and the application of CAD, CAM, CAE, become the main components of product development technology. 从目前的发展情况分析，熔模精密铸造技术的应用面非常广泛，未来其发展前景想当广阔。 According to the present development situation, the application surface of fusion die precision casting technology is very broad, and its future development prospect should be broad. |
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