亚洲第一网色综合久久红第一,玩弄人妻少妇500系列视频,proxxon是国产,人妻大战黑人白浆狂泄

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 development of cemented carbide industry in China towards precision

時(shí)間:2020-06-05瀏覽次數(shù):3649

In metal machinery manufacturing, cutting is the most basic and reliable precision machining method, and plays an important role in various modern industrial sectors such as machinery, motors, and electronics. According to statistics, the labor of cutting processing accounts for about 30-40% of the total labor of machinery manufacturing, and about 70% of various parts need to be cut with tools. The latest history of cutting technology development is the history of tool material development. The new tool material can greatly improve the cutting yield, improve the processing accuracy, the surface quality of the processing and expand the processing field, reduce the consumption of the tool, and obtain huge economic benefits. New tool materials play a huge role in promoting the development of machinery manufacturing. Therefore, the development, promotion and use of new materials is one of the important contents of the new technology revolution in the field of machinery manufacturing.


    Cemented carbide is an emerging tool material. Because of its high hardness, wear resistance and compressive strength, it has less messy chemical properties, excellent resistance to adhesion and heat resistance, etc. The cutting efficiency is 5-10 times that of high-speed steel tools, and can process high-hardness data that high-speed steel tools cannot process, so there is a large proportion in the tool data. The use of cemented carbide rotary blades and delaminated cemented carbide blades uses the cemented carbide industry to lose weight twice. The most effective weight loss products are developed. Cemented carbide is not an indispensable material for ancient superstition technology and industrial development.


    Today, the main trends in the development of the world's cemented carbide industry: First, in order to meet the needs of modern scientific and technological development, to develop in the direction of precision, since the 1970s, in modern machining, cemented carbide for cutting tools The dimensional accuracy requirements of cutting inserts have improved significantly. Therefore, cemented carbide manufacturers continue to improve the accuracy of their products. For example, in some developed countries, the accuracy grade of U grade cemented carbide has been eliminated. The dimensional accuracy of many cemented carbide molds has reached the micron level, and even some have reached the ultra-micro-meter level. Secondly, in order to adapt to the requirements of producing precision products, the production technology and equipment of excellence are constantly improved. The introduction of hot isostatic pressing technology in the field of cemented carbide production in the late 1960s and the spray drying technology transplanted into the field of cemented carbide production in the 1970s have made the cemented carbide production process a big step forward. In recent years, low-pressure hot isostatic pressing cleaning equipment and processes have made the density of cemented carbide products close to the theoretical value, up to 99.999%, which has significantly improved the quality of products. The third is to improve the processing efficiency and adapt to the requirements of new automated machine tools, developed some new cemented carbide, such as ultra-fine refined cemented carbide, gradient cemented carbide, dual-phase cemented carbide, self-lubricating cemented carbide, nano-level Hard alloy, super hard coating hard alloy, etc. At the same time, the production of cemented carbide is developing towards the matching of deep processing tools.


    Although the consumption of cemented carbide in my country is an emerging industry that started only after the shackles were lifted, it has developed rapidly, especially after the reform and opening-up. At present, the best weight loss product in my country's cemented carbide Taobao-the most effective output has been in the forefront of the world, the brand and model of the product are also relatively complete, and the quality of many products has reached the international advanced level, and the output value and profits and taxes have steadily increased. There are still many titles in the cemented carbide industry in Xiaguo. The second is that the technology and equipment of the slimming products with the best consumer technology and industrial effects are generally still in the 60-70s; the technical development ability is not strong. The development of advanced technology in the world; the quality of production does not fluctuate, the types are incomplete, the product structure is unreasonable, and the degree of deepening is low. In the cutting blades of Xiaguo metal, the development of indexable blades has been slow, and has been hovering around 20% for many years. The prosperous country has reached more than 80%. In addition, the coated blades in the indexable blades have reached 60% in the prosperous country, but only 5% in the next country. Many international machinery manufacturers are still using a small amount of export blades, such as automotive tools, train wheel processing tools, etc.

服務(wù)熱線(xiàn):13631565136
手機(jī):18926579610
電話(huà):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

无码精品国产av在线观看| 少妇被三个黑人4P到惨叫| 俄罗斯ZOOM人与ZOOM| 老师在办公室被躁在线观看 | 国产VIVODESHD精品| 亚洲精品无码午夜福利中文字幕| 日本免费一区二区三区视频观看| 色婷婷久久综合中文久久蜜桃AV| 欧美freesex黑人又粗又大| 纯肉高H啪动漫| 大长腿白丝被C到爽哭视频| 色噜噜久久综合伊人超碰| 国产精品美女久久久| 脱了内裤猛烈进入A片视频免费| 给我免费播放片高清在线观看| 日日碰狠狠躁久久躁综合网| 两男一女两根同进去舒服吗| 边做饭边被躁我和邻居的视频 | 久久久精品欧美一区二区三区| 亚洲日韩激情无码一区| 邻居的丰满人妻HD学生| 伊人久99久女女视频精品免| 人妻少妇精品久久久久久| 99久久蜜桃AV毛片毛片| 农民工嫖妓真实过程| 国产成人无码视频一区二区三区| 久久久久夜夜夜精品国产| 麻豆AV福利AV久久AV| 国产无套内射普通话对白| WC凹凸撒尿间谍女厕HD| 韩国电影办公室的在线观看| 国语对白嫖老妇胖老太| 绿帽娇妻肚子被灌满精怀孕| 无码国产一区二区三区四区| 精品国产成人亚洲午夜福利| 99国内精品久久久久久久| 被三个男人绑着躁我好爽视频| 专干老熟女视频在线观看| 欧美色国产精品中精品| 国产精品毛片无遮挡高清| 国产肥熟女视频一区二区三区|