<em id="b06jl"></em>
      <tfoot id="b06jl"></tfoot>
      <tt id="b06jl"></tt>

        1. <style id="b06jl"></style>

              狠狠干奇米,国产igao,亚卅AV,污污内射在线观看一区二区少妇,丝袜美腿亚洲综合,日日撸日日干,91色鬼,夜夜国自一区
              您好,歡迎來(lái)到易龍商務(wù)網(wǎng)!
              全國(guó)咨詢熱線:18764001377

              圣霖國(guó)際鍛造生產(chǎn)高性價(jià)比的選擇

              【廣告】

              發(fā)布時(shí)間:2020-07-23 22:48  






              鍛造設(shè)備主要用于金屬成形,所以又稱為金屬成形機(jī)床。鍛造設(shè)備是通過(guò)對(duì)金屬施加壓力使之成形的,力大是其基本特點(diǎn),故多為重型設(shè)備,設(shè)備上多設(shè)有安全防護(hù)裝置,以保障設(shè)備和人身安全。

              Forging equipment is mainly used for metal forming, so it is also called metal forming machine tool. Forging equipment is formed by exerting pressure on metal, and its basic characteristics are large force. Therefore, most of the equipment are heavy equipment, and many safety protection devices are set up on the equipment to ensure the safety of the equipment and the body.


              隨著電動(dòng)機(jī)的發(fā)明,十九世紀(jì)末出現(xiàn)了以電為動(dòng)力的機(jī)械壓力機(jī)和空氣錘,并獲得迅速發(fā)展。塑性雜質(zhì)隨著金屬變形沿主要伸長(zhǎng)方向呈帶狀分布,這樣熱鍛后的金屬組織就具有一定的方向性。第二次以來(lái),七十五萬(wàn)千牛的模鍛水壓機(jī)、一千五百千焦的對(duì)六萬(wàn)千牛的板料沖壓壓力機(jī)、十六萬(wàn)千牛的熱模鍛壓力機(jī)等重型鍛壓機(jī)械,和一些自動(dòng)冷鐓機(jī)相繼問(wèn)世,形成了門類齊全的鍛造機(jī)械體系。

              With the invention of motor, the mechanical press and air hammer powered by electricity appeared at the end of nineteenth Century, and developed rapidly. Since the Second World War, the forging water press, one thousand and five hundred thousand char, the punching press of Liu Wanqian cattle, the hot forging press of sixteen thousand thousand cattle, and some automatic cold heading machines have come out in succession, forming a complete system of forging machinery.


              二十世紀(jì)60年代以后,鍛造機(jī)械改變了從19世紀(jì)開(kāi)始的,向重型和大型方向發(fā)展的趨勢(shì),轉(zhuǎn)而向高速、、自動(dòng)、精密、專用、多品種生產(chǎn)等方向發(fā)展。

              After 60s twentieth Century, forging machinery changed the trend from nineteenth Century to heavy and large direction, and turned to high speed, high efficiency, automatic, precision, special, multi variety production.


              鐓粗是鐓粗示意圖使毛坯高度減小,橫斷面積增大的鍛造工序。 鐓粗工序主要用于鍛造齒輪坯、圓餅類鍛件。鐓粗工序可以有效地改善坯料組織,減小力學(xué)性能的異向性。 鐓粗與拔長(zhǎng)的反復(fù)進(jìn)行,可以改善高合金工具鋼中碳化物的形態(tài)和分布狀態(tài)。



              Upsetting is the forging process that indicates that the blank height is reduced and the cross section area is increased. The upsetting process is mainly used for forging gear blanks and round cake forgings. The upsetting process can effectively improve the billet structure and reduce the anisotropy of mechanical properties. The morphology and distribution of carbides in high alloy tool steel can be improved by repeated upsetting and drawing.


              行業(yè)推薦
              主站蜘蛛池模板: a毛片免费在线观看| 亚洲午夜无码av毛片久久 | 亚洲成人性爱网| 狼人伊人久久| 亚洲免费福利在线视频| 欧美久久亚洲精品| 97久久草草超级碰碰碰| 国产精品666| 亚洲成人第一VA| 丝袜-91Porn| 国产成人高清亚洲综合| 久久福利导航| 亚洲 欧美 日韩一区二区| 国产一区二区三区乱码在线观看| 国产精品集合| 无码人妻丝袜| 樱花草在线社区www| 一区二区日韩国产精久久| 欧美精品人人做人人爱视频| 操逼不卡| 欧美大胆自慰| 粗大肉大捧一进一出好爽视色大师| 少妇极品熟妇人妻| 精品香蕉一区二区三区| 成人网站免费在线观看| 久久精品成人无码观看免费| 一本色道久久88亚洲精品| 人妻少妇乱子伦精品无码专区电影| 亚洲色a| 91蜜臀国产自产在线观看| 国产欧美日韩免费看AⅤ视频| 国产精品亚洲А∨怡红院| 日本极品少妇xxxx| 中文字幕久久久久久精| 国产成人精品午夜福利| 色婷婷?av| 国产精品无码一区二区桃花视频| jizzjizzyou| 久久青草免费91观看| 国产熟睡乱子伦视频在线播放| 亚洲欧美色综合影院|