国产重口老太和小伙a片,欧美a级suv大全,女性扒开大腿露出私密部位,国产特级毛片aaaaaaa高清

歡迎進入深圳市錦鴻宇實業(yè)有限公司官網!
News
NewsNews

What is precision machining?

時間:2021-07-01瀏覽次數(shù):4083
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

国产手机精品一区| 亚洲熟女AV综合一区二区三区| 秋霞无码av久久久精品小说| 丁香六月| 护士猛少妇色xxxxx猛叫| 扒开内裤边吃奶xxoo| 精品欧美一区二区三区成人片在线| 欧美黑人又粗又大的性格特点| 国产精品多P对白交换绿帽| 挺进绝色邻居的紧窄小肉| 第二十三章小莹的放纵| 全彩调教本子h里番全彩无码| av无码国产精品午夜a片| 妓女精品国产噜噜亚洲av| 年轻丰满的继牳理伦片中文| 国产精品人妻一区二区三区四区| 婷婷五月色综合香五月| 女人过了30岁一摸就是水| 丰满多毛的大隂户毛茸茸| 欧美极品少妇×xxxbbb| 国产精品久久久久久亚洲毛片| 国产在线精品二区| 永久免费的啪啪网站免费观看浪潮| 中文字幕精品一区二区精品| 精产国品一二三产品区别图片| 中文精品无码中文字幕无码专区| 亚洲av成人无码久久精品| 汤芳人体摄影| 人人弄狠狠婷五月丁香| 青草视频在线观看| 欧美另类69xxxxx| 激情国产一区二区三区四区小说| 灯草和尚在线观看| 亚洲国产精品18久久久久久| 国产香蕉九九久久精品免费| 奶水h人妻销魂共妻高h| 欧美精产国品一二三产品区别在哪| 人久人久人久污污污精品国产| 国产精品无码免费专区午夜| 啊轻点灬太粗嗯太深了用力| 亚洲av无码亚洲国产一区|