2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、<p>  English translation</p><p>  RT2-320-9 car heater is energy-saving cycle type operations furnace, furnace, regardless of region. Taiwan RT2-320-9 structure of furnaces: a furnace body by two Furna

2、ce and the composition of a movable furnace body. Heated before being fitted with two stage heating furnace parts, heating parts on a dedicated horn, then the traction will move to one of the furnace furnace heating stag

3、e, the heating furnace after the furnace and then moved to another bench heating furnace before the heating stage</p><p>  High speed steel and bearing steel canning annealing;</p><p>  RT2-320-

4、9 furnace lining using all-fiber structure, relatively brick hearth about 60% energy saving, high-quality ceramic fiber blanket used as raw material, using special equipment of various specifications made according to ov

5、en, and leave enough room in the process The amount of compression to ensure that the module in masonry has been completed, each piece of ceramic fiber block expansion in different directions so that the module was no ga

6、p between the overall inter-extruded to achieve the </p><p>  Excellent thermal stability and thermal shock resistance, heat insulation, and anchors set in the oven cold noodles to improve the high temperatu

7、re strength of the fiber.</p><p>  RT2-320-9 car furnace shell from the steel plate and steel welded together. Dual Furnace structure, movement through the furnace turn operation, thereby reducing the heatin

8、g furnace heat loss, greatly improve work efficiency. Transmission machinery and furnace bottom welded into a whole, achieved through the rail back and forth between the two mantel movement, rail welding in the shop floo

9、r. Furnace lining materials using ceramic fiber modules, furnace mouth collision with heavy bricks, stove to</p><p>  Also used by self-sealing action agencies to reduce furnace heat radiation and convection

10、 loss, and to improve temperature uniformity. The furnace heating element using resistance band, with a high aluminum spiral nails hanging wall of refractory fiber lining in the furnace, the heating element material as t

11、he International General 0Cr25AL5, the maximum element temperature 1200 ℃.</p><p>  Stage furnace installed nitrogen Cr-Mn steel heat furnace floor to carry the parts used, in order to prevent the workpiece

12、heated oxide production floor through the gap into the bottom of the furnace heating elements heating elements around the damage caused by the need to purge regularly Car bottom furnace bottom oxide, generally once a wee

13、k, purge, purge and analysis will be lifted bottom, silk tank with compressed air to the oxidation resistance of clean and dander blowing.</p><p>  The lift door by rolling round in the rail, scroll up and d

14、own and realized, that not only guarantee the closed door when the door between the masonry and masonry furnace fit seal, but also guarantees that the process of opening no friction damage masonry, door by the motor thro

15、ugh the worm gear reducer, chain drive to provide, the furnace through the motor and reducer gear mesh between the drive and electromagnetic brake with appropriate adjustments.</p><p>  To improve the temper

16、ature uniformity, multi-zone heating furnace and heating elements are arranged two door.</p><p>  The car furnace supporting automatic temperature control cabinet, respectively, multi-zone automatic temperat

17、ure control and heating furnace operation control on the door. Furnace temperature control with digital display Xiamen Yu-electric Smart Table (PID control), the implementation of components for the triac, with no mechan

18、ical contact, no noise, long life, on the network without interference. Temperature controller with over-temperature alarm function, while the electrical cabinet is also e</p><p>  Door, down and moving and

19、putting into the furnace, the use of interlocking between control and ensure the safety of operation.</p><p>  RT2-320-9 car furnace factory supporting automatic temperature control cabinet, thermocouple com

20、pensation wire, a floor furnace, furnace light.</p><p><b>  臺車爐的介紹</b></p><p>  RT2-320-9臺車爐是節(jié)能型周期式作業(yè)爐,爐膛不分區(qū)域。RT2-320-9臺車爐的結構:由兩個爐臺和一個爐體組成,爐體為一可移動的機構。加熱前,兩個爐臺上裝有被加熱工件,加熱件放在專用的墊鐵上,然后由

21、牽引機構將爐體移動到其中一爐臺上進行加熱,加熱之后爐體再移動到另一個爐臺上進行加熱,之前爐臺上加熱好的工件卸下之后,在裝料,如此循環(huán)。 RT2-320-9適用于一般金屬零件,在空氣中進行正火、退火、淬火等熱處理加熱。高速鋼材料和軸承鋼材料的裝罐退火;</p><p>  RT2-320-9爐膛采用爐襯采用全纖維結構,相對磚式爐膛節(jié)能60%左右,采用優(yōu)質硅酸鋁纖維毯為原料,使用專用設備根據爐體制成各種規(guī)格,并

22、在加工過程留有一定的壓縮量,以保證模塊在砌筑完畢后,每塊陶瓷纖維塊在不同方向膨脹,使模塊之間互擠成無間隙的整體,達到完好蓄熱效果,而且該產品施工方便快捷,均能直接固定于爐殼鋼板的不銹鋼錨圓釘上。與其它產品相比優(yōu)點為低導熱,低熱容量,優(yōu)良的腐蝕性能,優(yōu)良的熱穩(wěn)定性及熱抗震性、絕熱性,并且錨固件設置于爐體冷面,提高了纖維的耐高溫強度。</p><p>  RT2-320-9臺車爐外殼由鋼板和型鋼焊接而成。采用雙爐臺結

23、構,通過爐體的移動交替作業(yè),從而減小了爐體加熱后的散熱損失,大大提高了工作效率。傳動機械和爐體底部焊接成一整體,通過導軌實現(xiàn)在兩爐臺間的來回移動,導軌焊接在車間的地面上。爐膛爐襯材料采用硅酸鋁纖維模塊,爐口采用重質防撞磚、爐臺面層采用重質高鋁防壓磚。電爐爐體與臺車之間采用迷宮式耐火材料砌筑外,還用通過自行動作的密封機構來減少電爐的熱輻射及對流損失,并可改善爐溫均勻性。本電爐加熱元件采用電阻帶,用高鋁質螺旋掛釘固定在爐墻耐火纖維爐襯上,加

24、熱元件材料為國際通用0Cr25AL5,元件最高使用溫度1200℃。</p><p>  爐臺上安裝有鉻錳氮耐熱鋼爐底板以承載工件之用,為了防止工件加熱后產生氧化皮通過爐底板的縫隙落入底部加熱元件周圍而造成加熱元件的損壞,需要經常定期地吹掃臺車爐底板下方的氧化皮,一般每周吹掃一次,吹掃時將爐底析吊起,用壓縮空氣將電阻絲槽內的氧化皮屑吹掃干凈。</p><p>  爐門的升降是通過滾動輪在導軌

25、上,上下滾動而實現(xiàn)的,這樣既保證了關閉爐門時爐門砌體與爐體砌體之間的吻合密封,又保證了在開啟的過程中不會摩擦損傷砌體,爐門是由電動機通過蝸輪蝸桿減速機減速,鏈條傳動來提供的,爐體則通過電動機和減速機之間齒輪嚙合傳動,并裝有電磁制動器進行適當?shù)恼{整。</p><p>  為提高爐溫均勻性,電爐采用多區(qū)加熱,并在兩個爐門上布置加熱元件。</p><p>  該臺車爐配套自動控溫柜,分別對多區(qū)加

26、熱進行自動控溫和對爐門爐體運行控制。電爐溫控采用廈門宇電智能數(shù)顯表(PID控制),執(zhí)行元件為雙向可控硅,具有無機械觸點、無噪聲、壽命長、對電網無干擾等優(yōu)點。溫度控制儀具有超溫報警功能,同時該電柜還配備了XWGJ大華長圖記錄儀,實現(xiàn)對溫度雙控、記錄、上、下限報警,每個加熱區(qū)均設過流、過載、斷偶、超溫保護及聲光報警。爐體的移動采用變頻器控制其行進的速度。爐門上、下和爐體移動及推桿進、出間采用互鎖控制,保證操作的安全性。</p>

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