粉嫩大学生无套内射无码卡视频,英语老师的大白兔子又大又好吃,午夜毛片不卡免费观看视频,两腿间花蒂被吸得异常肿大,亚洲小说乱欧美另类,少妇熟女久久综合网色欲,无码人妻丝袜在线视频,在线看片无码永久免费aⅴ,国产精品亚洲精品日韩动图,gogogo高清在线观看视频中文

        歡迎進(jìn)入深圳市錦鴻宇實(shí)業(yè)有限公司官網(wǎng)!
        News
        NewsNews

        The way and way of precision parts processing

        時(shí)間:2020-06-09瀏覽次數(shù):6090

        For the machinery industry and the automotive industry, the most frequently contacted substances are a series of parts and components. No matter what style or type, they are more or less familiar and know. Which kind of parts are used in which structure or which application position, the staff in the related industries knows the roots. However, no matter what kind of configuration, it needs to go through certain processing steps before it can be implemented in specific mechanical equipment. Therefore, professionals call this step precision machining.


        There are many ways to process precision parts, such as heat treatment. Parts refer to the single parts that are inseparable in machinery, which are the basic components of the machine and the basic unit in the process of machinery manufacturing. The manufacturing process generally does not require assembly procedures. Such as bushing, bearing bush, nut, crankshaft, blade, gear, cam, connecting rod body, connecting rod head, etc.


        1. Cutting of precision parts. Mainly include precision turning, mirror grinding and grinding. Micro turning is carried out on a precision lathe with a finely polished single crystal diamond turning tool, and the cutting thickness is only about 1 micron. It is often used to process non-ferrous metal materials such as spherical surfaces, aspheric surfaces, and flat reflectors. . Second, precision parts processing. When the precision of precision parts processing is in nanometers, and even in the end, the atomic unit (atomic lattice distance is 0.1 to 0.2 nanometers) is the target, the ultra-precision parts cutting processing method can no longer be adapted, and it is necessary to resort to special precision parts processing methods, that is, the application of chemical energy , Electrochemical energy, thermal energy or electrical energy, so that these energies exceed the joint energy between atoms, thereby removing the attachment, union or lattice deformation of some atoms on the surface of the workpiece to achieve the purpose of ultra-precision machining. These types of processing include mechanical chemical polishing, ion sputtering and ion implantation, electron beam exposure, laser beam processing, metal evaporation, and molecular beam epitaxy.

        服務(wù)熱線:13631565136
        手機(jī):18926579610
        電話:0755-26740010
        郵箱:senyuanmoju@126.com
        地址:廣東省深圳市寶安區(qū)石巖街道水田工業(yè)區(qū)寶石東路123號(hào)7棟1樓

        掃一掃關(guān)注我們

        特殊重囗味SM在线观看无码| 久久综合伊人77777麻豆| 国产精自产拍久久久久久蜜| 欧美日韩亚洲国产精品| 色爱综合另类图片av| 久久精品国产亚洲AV麻豆蜜芽 | 久久99精品久久久久久动态图| 亚洲尤码不卡av麻豆| 人与禽zozo性伦| 国产第一页屁屁影院| 亚洲av不卡无码国产| 一区二区在线观看视频| 中文字幕在线精品视频入口一区 | 夫旁人妻在公交被中出出水| 国产精品妇女一二三区| 久久天堂AV综合色无码专区| 国产色婷婷五月精品综合在线| 九色在线视频| 91免费国产视频| 91午夜夜伦鲁鲁片免费无码影视| 日本在线 | 中文| 少妇愉情理伦片bd| 人妻av一区二区三区精品| 亚洲国产精品综合久久20| 青青青在线视频国产| 无码国产精品一区二区免费vr| 亚洲国产成人无码AV在线播放 | 亚洲成人小说| 99久久免费国产精精品| 呦交小U女国产精品视频| 亚洲中文字幕无码中文字 | 国产探花一区| 久久久久99精品成人片| 亚洲 欧美 变态 另类 综合| 新狼窝色av性久久久久久| 无码人妻丰满熟妇区五十路百度| 亚洲人成人无码网www国产| 亚洲欧美日韩精品久久亚洲区| 久久99青青精品免费观看| 草草浮力影院| 人人爽人人爽人人爽|