新聞:北屯42步進電機57HD5403銷售部
交流直線伺服電機直接驅(qū)動進給技術(shù)已趨成熟。數(shù)控機床的進給驅(qū)動有‘旋轉(zhuǎn)伺服電機精密高速滾珠絲杠’和‘直線電機直接驅(qū)動’兩種類型。傳統(tǒng)的滾珠絲杠工藝成熟加工精度較高，實現(xiàn)高速化的成本相對較低，所以目前應(yīng)用廣泛。使用滾，珠絲杠驅(qū)動的高速加工機床移動速度90m/min，加速度1.5g。但滾珠絲杠是機械傳動，機械元件間存在彈性變形、摩擦和反向間隙，相應(yīng)會造成運動滯后和非線性誤差，所以再進一步提高滾珠絲杠副移動速度和加速度比較難了。90年代以來，高速高精的大型加工機床中，應(yīng)用直線電機直接驅(qū)動進給驅(qū)動方式。它比滾珠絲杠驅(qū)動具有剛度更高、速度范圍更寬、加速特性更好、運動慣量更小、動態(tài)響應(yīng)性能更佳，運行更平穩(wěn)、位置精度更高等優(yōu)點。且直線電機直接驅(qū)動，不需中間機械傳動，減小了機械磨損與傳動誤差，減少了維護工作。直線電機直接驅(qū)動與滾珠絲杠傳動相比，其速度提高30倍，加速度提高10倍，達10g，剛度提高7倍，響應(yīng)頻率達100Hz，還有較大的發(fā)展余地。當(dāng)前，在高速高精加工機床領(lǐng)域中，兩種驅(qū)動方式還會并存相當(dāng)長一段時間，但從發(fā)展趨勢來看，直線電機驅(qū)動所占的比重會愈來愈大。種種跡象表明，直線電機驅(qū)動在高速高精加工機床上的應(yīng)用已進入加速增長期。
新聞:北屯42步進電機57HD5403銷售部
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不銹鋼螺絲外表防蝕處置是指運用各種辦法在金屬外表施加維護層，其作用是將金屬與腐蝕性的環(huán)境隔離，以抑止腐蝕過程的產(chǎn)生，或減少腐蝕性介質(zhì)與金屬外表接觸，而到達避免或減輕腐蝕的目的。維護層應(yīng)能契合下述請求：耐蝕、耐磨、高硬度、構(gòu)造嚴密、完好、孔隙小。與基體金屬分離結(jié)實、粘結(jié)力好。平均散布且有一定厚度。維護層通常分為金屬涂層和非金屬涂層兩類，金屬涂層是指用耐蝕性較強的金屬或合金在容易腐蝕的金屬外表構(gòu)成維護層，這種涂層又叫鍍層。
減速器含義
減速器是原動機和工作機之間的獨立的閉式傳動裝置，用來降低轉(zhuǎn)速和增大轉(zhuǎn)矩，以滿足工作需要，在某些場合也用來增速，稱為增速器。
選用減速器時應(yīng)根據(jù)工作機的選用條件，技術(shù)參數(shù)，動力機的性能，經(jīng)濟性等因素，比較不同類型、品種減速器的外廓尺寸，傳動效率，承載能力，質(zhì)量，價格等，選擇的減速器。
減速器分類
減速器的類別、品種、型式很多，目前已制定為行（國）標(biāo)的減速器有40余種。減速器的類別是根據(jù)所采用的齒輪齒形、齒廓曲線劃分；減速器的品種是根據(jù)使用的需要而設(shè)計的不同結(jié)構(gòu)的減速器；減速器的型式是在基本結(jié)構(gòu)的基礎(chǔ)上根據(jù)齒面硬度、傳動級數(shù)、出軸型式、裝配型式、安裝型式、聯(lián)接型式等因素而設(shè)計的不同特性的減速器。
新聞:北屯42步進電機57HD5403銷售部
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一些發(fā)達尤其非洲、中東等發(fā)展家對五金工具的需求每年以百分之十幾的速度遞增。五金工具是勞動密集型產(chǎn)業(yè)，作為五金之鄉(xiāng)的永康，更是憑借低成本的傳統(tǒng)競爭優(yōu)勢，一度成為五金工具的集聚之地。不銹鋼五金產(chǎn)品質(zhì)量提升同時，市場對我國五金產(chǎn)品的要求也會逐步發(fā)展變化，對產(chǎn)品的質(zhì)量、包裝、供貨期限都會有更高的要求，甚至逐步延伸到生產(chǎn)過程和產(chǎn)品的研發(fā)，將產(chǎn)品與環(huán)境保護、能源資源、人文環(huán)境結(jié)合起來。而巨大的市場和中心地位引力，將進一步吸引五金跨國公司制造中心向轉(zhuǎn)移。
新聞:北屯42步進電機57HD5403銷售部
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