五月丁香啪啪,老扒夜夜春宵第一部,美女被c到爽哭视频网站,色戒完整版无删减158分钟hd

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

The way and way of precision parts processing

時間:2020-06-09瀏覽次數(shù):5264

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: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7棟1樓

掃一掃關(guān)注我們

亚洲日韩欧美一区二区三区| 日本xxxx| 一受多攻同做h嗯啊巨肉| 巨茎人妖自慰出精| 久久综合九色综合欧美狠狠| 又粗又爽高潮午夜免费视频| 国产无套内射普通话对白| 又大又紧又粉嫩18p少妇| 久久偷看各类wc女厕嘘嘘偷窃| 下乡供我的发泄村妇| 日本va欧美va精品发布| 久久久久亚洲av片无码v| 亚洲电影在线观看| 成全视频在线观看免费高清| 俄罗斯美女视频| 欧美性猛交 xxxx 乱大交| 亚洲精品无码成人| 国产免费观看黄a片又黄又硬小说| 皇上好涨奴婢夹不文h| 女朋友水太多进去就软了| 精品无码av一区二区三区不卡 | 羞羞漫画官网| 又色又爽又黄的视频软件app| 与子敌伦刺激对白播放| 久久久久亚洲av无码专区网站| a片高潮抽搐揉捏奶头视频| zoz○zo女人和另类zoz0| 丰满少妇被猛烈进AV毛片| 亚洲av无码a片在线观看蜜桃| 体育生gay白袜调教video| 校园h学长含着粉嫩小奶| 亚洲日韩av无码| 校花张开腿疯狂娇吟k视频| 寡妇被老头添一夜| 在线视频| 青青草app| 亚洲午夜精品一区二区麻豆| 国产片+人+综合| 婚纱跪趴承受粗大撞击| 天天操天天干| 狠狠躁夜夜躁人人爽|