FREE性欧美HD另类精品,唐舞桐灌满jing液h斗罗h,国产97人人人超碰超爽,丰腴饱满的极品熟妇

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):5013

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

英语老师没戴套让我c了一节课 | 国产又黄又爽又湿的免费网站| 美妇身上销魂冲刺享受| 99国精产品一区二区三区a片| 色欲av永久无码精品无码蜜桃| 国产精品美女www爽爽爽视频| 性少妇videoxxx欧美69| 双性受抽搐潮喷调教老师与学生| 老头在厨房添下面很舒服| 色哟哟免费精品网站入口| 小雪公交车灌满好爽h| 被调教跪着打屁股| 大肉蒂被嘬的好爽h娇门吟| 99亚洲精品自拍av成人软件| 色一情一区二| 免费av网站| 国产l精品国产亚洲区久久| 天干天干天啪啪夜爽爽99| 中文字幕人妻紧无码专区| 国产综合一区二区三区| 欧美裸体xxxx极品少妇| 色琪琪女色窝77777| 少妇与大狼拘作爱| 两腿间花蒂被吸得肿了视频| 老头扒开粉嫩的小缝亲吻| 久久国产精品99久久久久久| 欧美重囗味成人无码区| 吃奶一边吃一边流下来是什么原因| 小莹与翁回乡下欢爱姿势| 久久丫精品国产亚洲av不卡| 厨房解开奶罩吸奶头高潮小说| 东京热网站| 两片肥厚乌黑的陰唇| 国产一区二区精品久久岳| 少妇高潮惨叫久久久久久| 美女黄网站视频免费视频软件| 杨门女将之浪荡合集| 久久精品国产亚洲av| 精品欧美一区二区三区成人片在线 | 国产麻豆剧传媒精品国产av| 性直播视频在线观看|