成年丰满熟妇午夜免费视频,国产免费无码又爽又刺激A片,中文在线А√天堂官网,白嫩少妇HDXXXX性

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):5677

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

掃一掃關注我們

午夜精品久久久久久99热| 我和同桌说我刚刚做了个梦| 99国内精品久久久久久久| 国产又爽又大又黄A片软件| 局长含着娇妻的一对高耸| 免费看国产曰批40分钟无码 | 黄海川邱舒涵全文免费阅读| 精品久久久久久无码人妻| 国产欧美一区二区三区| 欧美性爱网| 最近中文2019字幕第二页| 19岁女RAPPER潮水欢迎你| 精品人妻VA出轨中文字幕| 丝袜美腿一区二区三区| 精品久久久久久亚洲精品| 亚洲熟妇AV一区二区三区浪潮| 蜜芽796.COO永不失联| 丰满人妻熟妇乱又伦精品| 70岁老太把腿岔开给老头摸| 国精品无码一区二区三区在线蜜桃 | 蜜臀久久AV无码牛牛影视| 女浴室里赤裸裸洗澡丰满视频| 无限资源在线观看片中文在线| 日本55丰满熟妇厨房伦| 人妻 校园 激情 另类| 青草国产精品久久久久久| 国产国产人免费人成免费视频| 丰满少妇被猛烈进入播放视频| 极品粉嫩嫩模大尺度无码视频| 精品乱人伦一区二区三区| 国模少妇无码一区二区三区| A级毛片成人网站免费看| 精品国产乱子伦一区二区三区| 777米奇色狠狠888俺也去乱| 国产亚洲精品久久777777| 亚洲人精品亚洲人成在线 | 欧美精品VIDEOSEX性欧美| 免费看少妇全黄A片| 双乳被老汉揉搓A毛片免费观看 | 奶头又大又白喷奶水| 老熟女富婆激情刺激对白|