青青青伊人色综合久久,97无人区夜夜夜爽涩日本无码,与子敌伦刺激对白播放,国产精品久久人妻拍拍水牛影视

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):4416
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

jk白丝极品被cao到流水呻吟| 精品国产三级A∨在线欧美| 中国国语对白高潮a片| 一边摸一边爽一边叫床| 国产精品无码av在线播放| 一个人看的日本www| 中文字幕爆乳julia女教师| 一个人看的www片高清在线| 国产在线拍揄自揄拍免费下载| 天堂av国产av在线av| 老头猛吸女大学奶头a片| 一本狠狠色丁香婷婷综合久久| 凌晨三点看的片WWW高清| 卧室里传出肉体撞击声| 亚洲爆乳无码一区二区三区| 天天摸夜夜添狠狠添婷婷| 亚洲娇小与黑人巨大交| 强行开发她的尿孔h| 香港AA三级久久三级| 无码国产精品一区二区免费模式| 少妇性饥渴姓交hdsex| 把腿杠起横冲直撞| 熟女肥臀白浆大屁股一区二区| 杨敏思版1-5完整无删减版| 精品无码久久久久久国产| 日本熟妇乱人伦XXXX| 亚洲h在线播放在线观看h| 免费精品99久久国产综合精品| √天堂资源地址在线官网| 亚洲AV永久无码精品尤物| 将军与娇妻各种做高h| 欧美zc00o人与善交| 无线乱码一二三区免费看| 厨房春潮她含她的乳第一章| 久久久久国色av免费看| 娇妻被交换粗又大又硬无| 久久久久久曰本av免费免费| yin荡娇妻乱部分阅读| ysl千人千色t9t9t9| 久久久婷婷综合五月色麻豆| 日产精品码2码三码四码区别|