论文部分内容阅读
借反光顯微鏡來研究磨礦產物的礦石工兿特性,或利用反射光学特征來鑑定重砂礦物时,如何將松散的礦物顆粒使之固結成塊,以便制备磨光片,是首先需要解决的技朮問題。鑲制磨光片,早期多采用松香酯、虫膠或火漆等热黏結的方法。但由于上述物料冶固后性脆,磨制时鑲嵌在其上的礦物顆粒,尤对微粒顆粒較易于剝落。近年來多采用酚醛塑料(即白氏塑料,俗称电木),借热压固法使礦物顆粒嵌牢在塑料中。然而采用酚醛热固性塑
Using a light-reflecting microscope to study the characteristics of mineral ores in a grinding product or using reflective optics to identify heavy-grit minerals, how to consolidate loose mineral particles into lumps for the preparation of polished sheets is the first technique that needs to be addressed problem. Inlaid polished disc, the early use of rosin ester, shellac or fire-retardant methods such as thermal bonding. However, due to the above material after the brittleness of the rule, when milled on the embedded in the mineral particles, especially the particles are easier to peel off. In recent years, more use of phenolic plastic (that is, white plastic, commonly known as bakelite), by hot pressing solid mineral particles embedded in the plastic. However, using phenolic thermosetting plastic