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          當(dāng)前位置: 首頁(yè) » 供應(yīng)產(chǎn)品 » 液壓機(jī)械 » 液壓元件 »德國(guó)R900347496現(xiàn)貨銷(xiāo)售

          德國(guó)R900347496現(xiàn)貨銷(xiāo)售

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          產(chǎn)品價(jià)格: 1/人民幣 
          最后更新: 2020-12-28 10:52:23
          產(chǎn)品產(chǎn)地: 國(guó)外國(guó)外
          發(fā)貨地: 德國(guó) (發(fā)貨期:當(dāng)天內(nèi)發(fā)貨)
          供應(yīng)數(shù)量: 不限
          有效期: 長(zhǎng)期有效
          最少起訂: 1
          瀏覽次數(shù): 52
          詢(xún)價(jià)  試用會(huì)員產(chǎn)品
        2. 公司基本資料信息
          • 上海弘佩液壓設(shè)備有限公司
          • 殷小姐 工程師
          • 會(huì)員[試用會(huì)員產(chǎn)品]
          • 郵件1084559547@qq.com
          • 手機(jī)15618361561
          • 電話(huà)
          • 傳真
          • 地址上海市匯源路218弄1708
          • 進(jìn)入商鋪
           
          產(chǎn)品詳細(xì)說(shuō)明

          上海弘佩液壓設(shè)備有限公司是一家從事經(jīng)營(yíng)國(guó)外進(jìn)口液壓氣動(dòng)備件、自動(dòng)化儀表的貿(mào)易公司;專(zhuān)注于工業(yè)傳動(dòng)自動(dòng)化流體領(lǐng)域。主營(yíng)產(chǎn)品電磁閥、柱塞泵、數(shù)控模塊、伺服電機(jī)、可編程控制器、傳感器、氣動(dòng)元件、工業(yè)儀器儀表等。經(jīng)營(yíng)品牌有:博世力士樂(lè)rexroth、阿托斯ATOS、Parker派克、EATON VICKERS伊頓、穆格MOOG、YUKEN油研,哈威HAWE、賀德克HYDAC等進(jìn)口品牌。
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售

          單向閥又稱(chēng)止回閥或逆止閥。用于液壓系統(tǒng)中防止油流反向流動(dòng),或者用于氣動(dòng)系統(tǒng)中防止壓縮空氣逆向流動(dòng)。
          單向閥有直通式和直角式兩種。直通式單向閥用螺紋連接安裝在管路上。直角式單向閥有螺紋連接、板式連接和法蘭連接三種形式。液控單向閥也稱(chēng)閉鎖閥或保壓閥,它與單向閥相同,用以防止油液反向流動(dòng)。但在液壓回路中需要油流反向流動(dòng)時(shí)又可利用控制油壓,打開(kāi)單向閥,使油流在兩個(gè)方向都可流動(dòng)。液控單向閥采用錐形閥芯,因此密封性能好。在要求封閉油路時(shí),可用此閥作為油路的單向鎖緊而起保壓作用。液控單向閥控制油的泄漏方式有內(nèi)泄式和外泄式二種。在油流反向出口無(wú)背壓的油路中可用內(nèi)泄式;否則需用外泄式,以降低控制油壓力。
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售

          單向閥的作用
          (1)普通單向閥的作用是使油液只能沿著一個(gè)方向流動(dòng),不允許反向倒流.
          (2)它的用途是:安裝在泵的出口,可防止系統(tǒng)壓力沖擊對(duì)泵的影響,另外,泵不工作時(shí),可防止系統(tǒng)油液經(jīng)泵倒流回油箱,單向閥還可用來(lái)分隔油路,防止干擾.單向閥與其他閥組合便可組成復(fù)合閥.單向閥與其他閥可組成液控復(fù)合閥
          (3)對(duì)于普通液控單向閥,當(dāng)控制口無(wú)控制壓力時(shí),其作用與普通單向閥一樣;當(dāng)控制口有控制壓力時(shí),通油口接通,油液便可在兩個(gè)方向自由流動(dòng).
          (4)它的主要用途是:可對(duì)液壓缸進(jìn)行鎖閉;作立式液壓缸的支承閥;起保壓作用.
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售

          單向閥是氣流只能一個(gè)方向流動(dòng)而不能反向流動(dòng)的方向控制閥。其工作原理與液壓?jiǎn)蜗蜷y一樣。壓縮空氣從P口進(jìn)入,克服彈簧力和摩擦力使單向閥閥口開(kāi)啟,壓縮空氣從P流至A;當(dāng)P口無(wú)壓縮空氣時(shí),在彈簧力和A口(腔)余氣力作用下;閥口處于關(guān)閉狀 態(tài),使從A至P氣流不通。單向閥應(yīng)用于不允許氣流反向流動(dòng)的場(chǎng)合,如空壓機(jī)向氣罐充氣 時(shí),在空壓機(jī)與氣罐之間設(shè)置一單向閥,當(dāng)空壓機(jī)停止工作時(shí),可防止氣罐中的壓縮空氣回流 到空壓機(jī)。單向閥還常與節(jié)流閥、順序閥等組合成單向節(jié)流閥、單向順序閥使用。
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售
          德國(guó)R900347496現(xiàn)貨銷(xiāo)售為了能使刀具經(jīng)久耐用,盡量減少磨損,需要了解各種切削因素對(duì)刀具磨損的影響。影響刀具切削性能的主要因素有:刀具幾何參數(shù)(后角、前角、主偏角、刀尖圓弧半徑等)、刀具材料、切削用量、工件材料及其機(jī)械性能等。這些因素中工件材料屬于不可控因素,改變其它因素的屬性可控制刀具的磨損形式及磨損率,如通過(guò)改變工件材料的熱處理狀態(tài)可改變工件材料的機(jī)械性能,從而影響刀具的磨損;選擇合理的刀具材料和刀具幾何參數(shù)也可改善刀具磨損;生產(chǎn)上一般還可通過(guò)合理選擇切削用量來(lái)減少刀具磨損,提高刀具的使用壽命。
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