【正文】 axial adjustment of the body, after the two axial adjustment and preloading mechanism to ensure that accurate reducing unit In order to reduce investment, Morgan has also launched only two rack reducing unit program, some information it called dual rack the Taike Sen(Tekisun)highprecision rolling mill, installed in the nontwist finishing mill and the pinch roller used in conjunction with the existing notwist finishing finished accuracy of 177。 arrangement, the oil film bearings [13].The mill two groups of collective drive, so called “minino twist advantage is tungsten carbide roll rings installed to extend the pass life, the main motor and gear reduction from four sets of two sets, 22% less cost than conventional independent prefinishing mill, and rolling section, rolling force, cantilever shorting mill stiffness without 39。1)automatic monitoring device inaccurate, and the rolling temperature is uneven, adjustments are not timely or improper causes the product size is )due to the roller ring breaking, rolling groove wear or blank surface defects and other reasons caused by the product surface )Due to the the the billet subcutaneous bubbles serious or rolling groove is badly worn resulting in rolling convex part of the Roll caused by the product surface )Due to the quality of the roll surface hardness different or the spinning temperature is too high, the cooling rate is too slow, wire rod surface by severe oxidation or billet is heated properly, part or all of the serious decarburization causes the hemp side of the surface of the line used for the production of advanced technology and development trends billet hot delivery and hot charging process In order to further energy conservation, some highwire factory uses a billet hot charging process, further reducing fuel consumption and improve the heating quality, reduce metal charging temperature is generally at about 600 ℃, Germany BSW plant reached 650 ℃ ~ 920 ℃.Defectfree billet hot charging requirements, more billet defect site, it would be inappropriate to use the hot furnace The furnace is to ensure product quality, yield, and reduce the energy consumption of key , the furnace furnace selection and level of equipment, should match the scale and rolling line of the workshop process equipment and equipment highspeed wire rod mill, the rolling speed is high and needs to reduce its open rolling temperature controlled , the heating temperature, bining with the rolling mill, rolling speed and controlled rolling and cooling no head rolling Without a head rolling is one of the latest technology applications in the field of small bar and wire rod point is that just left the furnace and billet head welded to the rear of the former a billet without a head rolling, thereby eliminating the tensionfree section of the head and tail, in particular, to reduce the intermediate cutting head and bite into the accident, and improve the finished product rate and the metal yield, enhance the production efficiency of the the subvolumes in the set rolls, wire sub reel weight can be selected according to user factory in Japan39。s highspeed wire rod production achieved good results, but there are still some problems, mainly as。after winding and heat treatment made the factories in recent years due to China39。after hot forging or cold forging into the rivet。technological progress。s highspeed wire rod : highspeed wire rod mill。ABSTRACT The development of China39。但各個(gè)企業(yè)還要根據(jù)市場需求和本企業(yè)能力確定自己的發(fā)展方向；追求高附加值產(chǎn)品要量力而行，根據(jù)本企業(yè)技術(shù)水平、資金能力、市場需求、競爭中所處地位選擇項(xiàng)目和確定產(chǎn)品，發(fā)揮本企業(yè)的用戶群優(yōu)勢(shì)、地域優(yōu)勢(shì)、技術(shù)優(yōu)勢(shì)等。這要求吐絲機(jī)的轉(zhuǎn)速調(diào)節(jié)和恢復(fù)工藝轉(zhuǎn)速必須在線材頭部進(jìn)入吐絲管之前完成。我們采用改變吐絲機(jī)運(yùn)行速度實(shí)現(xiàn)吐絲機(jī)頭部定位控制。在這種情況下，粗、中、預(yù)精機(jī)、精軋就需要2 套孔型系統(tǒng)。為減少投資，摩根公司還推出了只有兩機(jī)架的減徑機(jī)組方案，有的資料把它稱為雙機(jī)架泰克森（Tekisun）高精度軋機(jī)，安裝在無扭精軋機(jī)和夾送輥之間，與現(xiàn)有無扭精軋機(jī)配合使用。前兩架輥徑 Φ230mm，后兩架為 Φ150mm。由一臺(tái)3200KW左右的調(diào)速電機(jī)經(jīng)兩級(jí)減速箱驅(qū)動(dòng)。摩根公司的定徑機(jī)組（RSM）由 4 架組成。主要是用來提高線材的軋制精度，以滿足用戶對(duì)產(chǎn)品質(zhì)量包括尺寸精度、表面質(zhì)量和機(jī)械性能等進(jìn)一步提高的要求。目前最新的軋件開軋溫度可低至850℃，進(jìn)無扭精軋機(jī)溫度也可低至 850℃。低溫軋制可降低燃料消耗，減少脫碳、燒損，改善軋件表面質(zhì)量。我國近些年引進(jìn)的美國摩根制造的幾套 100m/s 級(jí)的精軋機(jī)均為重負(fù)荷型。為此，通過對(duì)油膜軸承的改進(jìn)，相繼研制開發(fā)了重負(fù)荷及超重負(fù)荷V型結(jié)構(gòu)的無扭精軋機(jī)組，V型是指軋輥箱嵌入V型底座，安裝更簡捷，穩(wěn)定性更好。我國鞍鋼線材廠在預(yù)精軋區(qū)每線采用了兩臺(tái)Φ230mm “微型無扭軋機(jī)”，杭鋼、包鋼、銀水新建的高速線材廠預(yù)精軋機(jī)都采用了“微型無扭軋機(jī)”方式，取得良好效果。軋機(jī)兩架一組集體傳動(dòng)，故叫“微型無扭軋機(jī)”。它是將預(yù)精軋的后四架改為大號(hào)懸臂軋機(jī)，頂交90176。為此新建高線將精軋機(jī)組的成組傳動(dòng)概念擴(kuò)展到預(yù)精軋機(jī)組。懸臂軋機(jī)體積小、專門安裝硬質(zhì)輥環(huán)，但軋機(jī)剛度很差。采用單線布置，軋機(jī)就容易平/立交替安裝，使軋件無扭行進(jìn)，減少了因軋件扭轉(zhuǎn)造成的表面和內(nèi)部缺陷及廢品，而且可以選用高剛度軋機(jī)，適合高檔次產(chǎn)品的生產(chǎn)。但剛度差，不利于生產(chǎn)高精度線材。、中軋機(jī)組的平/立布置粗軋軋件短，全連軋時(shí)速度慢。日本NKK公司東京制鐵高松工廠的棒線材軋機(jī)上已采用了無頭軋制這項(xiàng)技術(shù)。其要點(diǎn)是將剛出加熱爐的鋼坯的頭部與前一根鋼坯的尾部焊接起來進(jìn)行無頭軋制，從而消除頭尾的無張力段，尤其減少中間切頭和咬入事故，提高了成材率和金屬收得率，提升軋機(jī)生產(chǎn)效率。因此，加熱溫度的確定，應(yīng)與軋機(jī)、軋制速度和控軋控冷要求相結(jié)合。因此，加熱爐爐型選擇和裝備水平，應(yīng)與車間規(guī)模和軋線工藝設(shè)備裝備水平相匹配。熱裝要求無缺陷連鑄坯，連鑄坯缺陷較多的現(xiàn)場，就不宜使用熱裝。為進(jìn)一步節(jié)能，有的高線廠又采用了連鑄坯熱送熱裝工藝，進(jìn)一步降低了燃料消耗，提高加熱質(zhì)量，減少金屬損耗。3）由于連鑄坯皮下氣泡嚴(yán)重或是軋槽嚴(yán)重磨損致使軋件凸起部分被疊軋?jiān)斐僧a(chǎn)品表面結(jié)疤。；1)由于自動(dòng)監(jiān)測(cè)裝置的失準(zhǔn)以及軋件溫度不均，調(diào)整不及時(shí)或方法不當(dāng)?shù)仍蛟斐僧a(chǎn)品尺寸超差。，普遍有較大的差距，造成日歷作業(yè)率和機(jī)時(shí)產(chǎn)量低的原因除坯料供應(yīng)不足外，主要是生產(chǎn)準(zhǔn)備和更換尺寸所用的工時(shí)較長，設(shè)備備件壽命低且儲(chǔ)備不足，設(shè)備維護(hù)檢測(cè)手段不夠完善，從而造成故障停機(jī)和檢修工時(shí)長。，但產(chǎn)品的品種質(zhì)量還達(dá)不到世界一流水平。我國的高速線材生產(chǎn)雖然取得了較好的成績，但仍然存在著一些問題，主要表現(xiàn)為；，優(yōu)質(zhì)鋼線材中合金鋼線材的比例仍然偏低。近年來由于我國經(jīng)濟(jì)的快速發(fā)展，使用線材為原料的小型工廠日益增加，社會(huì)對(duì)高質(zhì)量的線材產(chǎn)品的需求越來越大。線材的用途概括起來可分兩大類：一類是線材產(chǎn)品直接被使用，主要應(yīng)用在鋼筋混凝土的配筋和焊接結(jié)構(gòu)件方面。據(jù)有關(guān)資料統(tǒng)計(jì)，%～%。自20世紀(jì)60年代中期高速線材軋機(jī)及軋后控冷技術(shù)問世以來，隨著線材生產(chǎn)技術(shù)本身的日臻完善和相關(guān)技術(shù)的進(jìn)步，高速線材軋機(jī)的產(chǎn)品在品種規(guī)格范圍、盤重、尺寸精度、表面質(zhì)量及內(nèi)在質(zhì)量上比以往的線材軋機(jī)產(chǎn)品均有長足的進(jìn)步，能更好的滿足經(jīng)濟(jì)和技術(shù)發(fā)展的需要。第一篇：高線中英文摘要范文摘要介紹了我國高線生產(chǎn)的發(fā)展、技術(shù)進(jìn)步，全面分析了我國高線軋機(jī)所采用的先進(jìn)技術(shù)，綜述了我國高線軋機(jī)的發(fā)展趨勢(shì)及特點(diǎn)。關(guān)鍵詞：高線軋機(jī)；高速線材；技術(shù)進(jìn)步；發(fā)展趨勢(shì) 線材是熱軋材中斷面尺寸最小的一種，由于軋鋼廠需將線材在熱狀態(tài)下圈成盤卷并一次交貨，故又稱之為盤條。線材不僅用途很廣而且用量也很大，它在國民經(jīng)濟(jì)各部門中占有重要的地位。美國約占5%，日本約占8%，英國約占9%，法國約占14%，我國約占20%左右。另一類是將線材作為原料，經(jīng)過再加工后使用，主要是通過拉拔成各種鋼絲，在經(jīng)過捻制成為鋼絲繩，或在經(jīng)過編制成鋼絲網(wǎng)；經(jīng)過熱鍛或冷鍛成鉚釘；經(jīng)過冷鍛及滾壓成螺栓，以及經(jīng)過各種切削加工及熱處理制成機(jī)器零件或工具；經(jīng)過纏繞成型及熱處理制成彈簧等。目前，由于資金以及冶煉技術(shù)的落后，我國僅有為數(shù)不多的幾家線材廠能生產(chǎn)出高檔次的線材產(chǎn)品，因此我國還不時(shí)需要從國外進(jìn)口少部分的胎圈鋼絲、鋼絞線、鍍鋅鋼絲等硬線產(chǎn)品。，如鋼的純凈度不高，線材通條性能不夠穩(wěn)定，含碳量的偏差較大。，純凈鋼線材、易切鋼線材如合金彈簧鋼、不銹鋼等還存在著品種和質(zhì)量方面的諸多問題，每年仍需進(jìn)口。、燃耗、電耗等方面與先進(jìn)國家的生產(chǎn)線相比也同樣存在著一定的差距。2）由于輥環(huán)破缺，軋槽磨損或是坯料表面缺陷等原因造成產(chǎn)品表面產(chǎn)生折疊。4）由于軋輥質(zhì)量差，表面硬度不一或吐絲溫度過高，冷卻速度過慢，盤條表面受到嚴(yán)重氧化或鋼坯加熱不當(dāng)，局部或全部嚴(yán)重脫碳等原因造成產(chǎn)品表面麻面。熱裝溫度一般在 600℃左右，德國 BSW 廠達(dá)到 650℃～920℃。加熱爐是保證產(chǎn)品質(zhì)量、產(chǎn)量和降低能耗的關(guān)鍵設(shè)備。對(duì)于高速線材軋機(jī)，軋制速度較高，除進(jìn)行控制冷卻外，還需降低開軋溫度。無頭軋制是應(yīng)用在小型棒線材軋制領(lǐng)域的一項(xiàng)最新技術(shù)。線材的分卷在集卷筒內(nèi)進(jìn)行，可根據(jù)用戶需求選定線材的分卷盤重。國內(nèi)也有廠家試驗(yàn)焊接無頭軋制，但焊接質(zhì)量不理想，造成損失更大。有些現(xiàn)場采用三輥軋機(jī)軋制，也能與后續(xù)連軋匹配。也有現(xiàn)場采用全水平粗軋，中