免费a级毛片出奶水,一本一道波多野结衣AV中文,熟女少妇精品一区二区 ,丰满人妻熟妇乱又伦精品

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

What is precision machining?

時間:2021-07-01瀏覽次數(shù):4345
Fine machining is a kind of machining, which is a machining process in which the workpiece meets the position tolerance required by the drawing. When the workpiece undergoes this process, its performance characteristics and appearance structure will change to a certain extent.


With mechanical processing, there will naturally be corresponding parts. As a discipline of mechanical majors, mechanical parts design is one of the most sought-after majors for liberal arts students, and it is also one of the most representative engineering disciplines; at present, this major Not only good science and engineering knowledge is required, but also excellent drawing ability and spatial imagination ability. And due to the development of domestic industry and the changing demand from time to time, the requirements for personnel in the machining industry are also increasing from time to time. The employment rate of mechanical majors can be improved. Reach 95%.


With the development and progress of domestic industries, machining has changed a lot, and fine machining technology has also emerged. Many industries such as home appliances, automobiles, hardware, and products used in medical manufacturing more or less use fine parts. It may be just a component, or it may be a central component of a mechanical device. All in all, it is very important and plays an irreplaceable role.


There are two processes for fine mechanical processing and manufacturing of these fine parts, one is hot processing and the other is cold processing, and hot processing involves heat treatment and other methods to make the parts undergo chemical or physical changes under very warm conditions to meet the requirements of shape changes. . For cold working, there is no chemical and physical change at room temperature to meet the requirements of shape change, and cutting technology is generally used. In the future, under the premise of satisfying processing and environmental protection, fine mechanical processing will be separated from technology and become an important and sustainable science.


Can you really understand what the finely machined non-standard parts are?


Non-standard parts, I believe that the machinery manufacturing industry has the most contact and demand. Most of the specifications and parameters of the parts in the automation equipment or the jigs used in processing and inspection tools are controlled by the enterprise. Therefore, such companies will hand over the drawings of the required parts to the corresponding fine machining manufacturers for processing to meet the geometric tolerances required by the drawings.


From the above text, we can draw a vague concept. Non-standard parts are related to standard parts. It does not have the standardized structure, size, logo and drawing method like standard parts. Non-standard parts mainly The country has not set strict standard specifications, there are no relevant parameter rules, and the accessories are freely controlled by enterprises according to their own needs. Therefore, at a certain level, the processing cost is higher than the standard parts.


At present, there is no standard classification of non-standard parts. They are roughly classified into metal non-standard parts and non-metal non-standard parts according to their materials. Metal parts are the original materials of metals, such as brass, aluminum, etc., and tolerance requirements and brightness are determined by Customer rules, complicated procedures, non-metal parts, that is, the original materials are plastic, wood, stone, etc.

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

国产精品美女久久久网av| 熟女肥臀白浆大屁股一区二区 | 朋友新婚人妻无套| 国精产品一区一区三区有限在线| 亚洲ΑV久久久噜噜噜噜噜| 男人边吻奶边挵进去视频网站 | 欧美精品久久96人妻无码| 最新中文乱码字字幕在线| 波多野42部无码喷潮在线| 国产av无码专区亚洲精品| 亚洲V欧美V国产V在线观看| 国产精品嫩草影院| 护士人妻hd中文字幕| 中文字字幕乱码视频| 亚洲精品无码久久| 夜鲁鲁鲁夜夜综合视频欧美| 美女脱裙打光屁屁视频| 少妇高潮惨叫久久久久久久| 日本艳鉧无码动漫1~6| 粗大黑人巨精大战欧美成人| 亚洲欧美精品午睡沙发| 国产精品久久久久久久久久久不卡 | 久久久久亚洲av无码观看| 宝宝好涨水快流出来免费视频| 国产拍揄自揄精品视频| 欧美男男大粗吊1069| 香蕉久久夜色精品国产| 人妻妺妺窝人体色www聚色窝| 国产拍揄自揄精品视频| 欧美成人精品第一区| 国产精品成人无码久久久| 亚洲精品无码高潮喷水在线| 久久aⅤ无码av高潮av喷吹| 亚洲AV色区一区二区三区| 豆国产97在线 | 亚洲| 最近免费中文字幕大全高清10| 日韩a人无码亚洲成a无码| 欧美一区二区三区激情| 欧美大屁股喷潮水xxxx| 大战丰满人妻50p| 亚洲日韩精品欧美一区二区 |