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工业陶瓷的制备 |
发布时间：08-03-23 01:20:21 阅读次数:[ ]  |
制备工业陶瓷的原料是非金属矿物。矿物在使用前要进行粉碎和除杂处理，再经混料、成型、干燥和煅烧得到工业陶瓷产品。由于工业陶瓷所用的原料大多为瘠性原料，所以在成型的过程中往往要加入蜡等有机物作为粘结剂，同时煅烧之前或煅烧过程中要进行排蜡处理。
常用的工业陶瓷成型方法有：注浆、压力注浆、注模成型、挤压成型等。
为制备出性能优良的工业陶瓷，常常需要昂贵的专用设备。
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冯果译自：http://www.ceramics-directory.com/about-industrial-ceramics.php
Preparation of Industrial Ceramics
Industrial ceramics are made from nonmetallic mineral clays. The minerals are first taken in the right proportion to obtain all the required properties, and then they are crushed and ground into a very fine consistency. In order to remove impurities, purifying chemical solutions are added to the mixture. Any impurity is removed in the form of a precipitate. Then wax is added to minerals. Wax acts as a binder and it holds the clay together. Plastics could also be added in case the ceramic requires to be more tenacious and durable. Plastic also improves the pliability of the ceramic.
Different processes are used to manufacture industrial ceramics. Some include:
I. Slip casting
II. Pressure casting
III. Injection Molding
IV. Extrusion
When all the processes are accomplished, and the ceramic has got its shape, the materials are molded and heated for a second and final step. This final stage in the preparation of industrial ceramics is called 'densification'. In general the manufacture of industrial ceramics is complicated and involves numerous processes using very specific and expensive production equipment.
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