久久精品欧美日韩精品手机放,东京热国产精品一区二区,97精品久久久久久人妻精品,无码专区视频中文字幕,午夜亚洲视频在线观看,视频一区二区精品的福利,91破解版在线免费下载

Technology of glass beads in China

2020-04-20 11:53:39 3659

With the continuous development of China's glass bead technology, glass beads are presented to people in more fields of perfect use. Glass beads are the most common adornment accessories in the advanced society, widely used in clothing, shoes, hats, handicrafts and other decorative fields. Today, China also produces reflective glass beads for the road, which are also divided into two categories: one is reflective glass beads Class A is ordinary glass beads, mainly used for road coating, and the other is high refractive index glass beads, mainly used for reflective weaving, which are more used in traffic police clothes and highway signs, so what are the specific manufacturing processes of glass beads?


The first step is to make all kinds of ball shaped wool culture by using advanced technology;


The second step is to put the wool culture into a grinding disc with the same size, add oil and coarse abrasive to carry out rough grinding;


In the third step, when the primary grinding is not completed, the oil and coarse abrasive adhering to the surface of the ball shall be cleaned;


The fourth step is to put the rough ground wool culture into the fine grinding machine, and then add oil and fine abrasive for fine grinding;


The fifth step is polishing. The polishing process is similar to that of coarse grinding and fine grinding.


江安县| 庐江县| 云和县| 海安县| 望奎县| 峨眉山市| 偏关县| 南涧| 土默特右旗| 若羌县| 那曲县| 布拖县| 通许县| 永平县| 巫溪县| 青州市| 紫金县| 金秀| 阿尔山市| 久治县| 太和县| 庆城县| 红安县| 彰化县| 宝应县| 永登县| 石家庄市| 芦溪县| 江油市| 南郑县| 儋州市| 宁陕县| 安多县| 永靖县| 辽阳市| 武功县| 札达县| 德令哈市| 河北省| 高密市| 中宁县|