英语高手请帮忙？很急，这周就要交了

Question

轧机轴承工作性能能否得以有效利用，相当大的程度取决于润滑情况，润滑剂被称为“轴承的第五大零部件”。轧机轴承的损坏原因40%以上是润滑不良造成的，所以要降低轧机轴承消耗，就必须选用适宜于使用条件的润滑方法和优质润滑剂，还要设计安装防止水和氧化皮等异物侵入的可靠密封装置。
目前轧机轴承主要采用脂润滑和油气润滑。现大多厂家是使用简便易行的脂润滑方式润滑，如有可能采取油气润滑技术，可以使轧机轴承处于比较理想的润 滑条件下工作，会大幅度降低轴承消耗。

1、脂润滑

脂润滑的方法具有简单易行，轧辊更换方便的特点，应用很广泛。应根据轧机轴承工作温度、转速、轧制力以及密封防水性能、冲击震动大小、供脂方法等情况选择适宜的润滑脂。要选用耐高温、粘度强、极压性能好以及抗水淋性能高的正规厂家的润滑脂。根据轧机轴承的工作特点应选择含EP添加剂的2＃、3＃、锂基脂或聚脲脂。

虽说高性能的润滑脂采购成本高，但是用量少了，轴承寿命长，总的综合成本是降低了。另外润滑脂的填充量一定要适量并填充到位，不同牌号的润滑脂不能混用，使轧机轴承工作表面始终处于油膜正常状态。

2、充脂量

初次填充润滑脂时将轴承内部空间填满即可，对于立辊或斜辊每个轴承座上下盖内要填充足够量润滑脂。每次换辊后要检查润滑脂是否硬化变黑，是否被杂质污染，是否氧化乳化。若出现上述情况应彻底更换润滑脂并检查密封件及密封结构及时更换或改进；若情况尚好可补充新脂后继续使用。

3、油气润滑

油气润滑是轴承理想的润滑方式,轴承在工作当中每隔一段时间压缩空气带着润滑油滴进入轴承内部 ，润滑油留在轴承内部,空气将轴承运行中的热量带走,同时阻止外部的杂质水汽浸入轴承内部。油没有被雾化不污染环境。

4、密封装置

轴承的密封就是要保持内部良好的润滑状态，并阻止冷却水、氧化铁皮、杂质浸入工作表面延长轴承的使用寿命。由于轧机轴承密封问题，轴承损坏最多的就是靠近辊身侧的部位，轴承经常是因为润滑脂污染、流失，使零件工作表面磨损、剥落甚至碎裂，特别是冷带轧机的乳化液渗入，使润滑脂失效更快。

轴承的密封分为自带密封和外部密封两种。外部密封主要采用迷宫式和接触式相结合的设计。迷宫的级越多（不低于两极）间隙越小密封的效果越好。迷宫的间隙根据轴承尺寸的大小取径向单侧0.6～1.5mm ；轴向4～6mm 。

接触式骨架油封：它在轧机上应用比较广泛，为了增加效果可以两三个并列使用。油封有方向性，不能装反。热轧机一般装两个油封，两个油封唇口都要向轴承座外，以阻止外界污物浸入。冷带轧机一般装三个油封靠近轴承的一个油封唇口要向内，用以阻止润滑脂溢出影响轧材质量。使用油封时要小心，避免装辊时撞坏唇口，影响密封效果。

RBR 型密封环： 这是一种轧机轴承专用的橡胶唇式密封环，近年来被广泛应用。RBR密封环采用轴向密封的方式，其唇口贴在压盖的基面上，不受轧辊跳动的影响，轴承内部的旧脂可以溢出，外部的冷却水、氧化铁皮、杂质被唇口阻止进入，有较好的密封效果。而且使用方便，换辊时轧辊装入轴承座不受任何影响。
对是 翻译。
我也知道难点 但是很着急啊
不然请大家帮我找一份机械专业的文摘（英汉版的）

机轴承的润滑与密封 这个词怎么翻译

Answer 1

　　Whether can the rolling mill bearing operating performance use effectively, the quite great degree is decided by the lubrication situation, the lubricant is been called “the bearing's fifth big spare part”. The rolling mill bearing's damage reason above 40% is the insufficient lubrication creates, must therefore reduce the rolling mill bearing consumption, must select is suitable in the exploitation conditions lubrication method and the quality lubricant, but must design the installment to prevent foreign matter invasion and so on water and oxide skin reliable packing assemblies. the present rolling mill bearing mainly uses the fat lubrication and the oil gas lubrication. Presently mostly the factory uses the easy to do fat lubrication way lubrication, if has the possibility to adopt the oil gas lubrication technology, may cause the rolling mill bearing to be under the quite ideal lubrication condition to work, will reduce the bearing consumption large scale.
　　1 The fat lubricates the fat lubrication the method to have easy and feasible, the roller replacement convenient characteristic, the application is very widespread. Should according to the rolling mill bearing operating temperature, the rotational speed, the roll force as well as the seal waterproofing performance, the impact vibration size, supplies situation choice being suitable and so on fat method lubricants. Must select, the viscosity to be strong thermostablly, the ep performance good as well as the anti-water drenches the performance high regular factory the lubricant. Should choose according to the rolling mill bearing's operating feature contains EP chemical additive 2#, 3#, the lithium base fat or the polyuria fat. although the high performance lubricant procurement cost is high, but the amount used has been short, the bearing life is long, the total comprehensive cost reduced. Moreover the lubricant packing quantity wants certainly right amount and fills the arriving, the different trademark's lubricant cannot mix uses, to cause the rolling mill bearing active face to be at the lubricant film normal state throughout.
　　2nd, the sufficient fat measures when the primary packing lubricant the bearing inner space stuff then, must fill up and down the enough quantity lubricant regarding the vertical roll or in the web roll each bearing seat lid. After each time roll changing, must inspect the lubricant whether to harden the nigrescence, whether by impurity pollution, whether to oxidize the emulsification. If has the above situation to replace the lubricant thoroughly and to inspect the seal and the seal structure prompt replacement or the improvement; If after situation Shang Haoke supplemented the new fat, continued to use.
　　3, the oil gas lubricate the oil gas lubrication are the bearing ideal lubrication way, the bearing compress the spatial gas range middle the work to lubricate the oil dripping once in a while to enter in the bearing, the lubricating oil keeps in the bearing, the air carries off bearing movement in quantity of heat, simultaneously prevents the exterior impurity water vapor to plunge in the bearing. The oil has not been atomized the pollution of the environment.
　　4th, packing assembly the bearing's seal is must maintain the internal good lubrication condition, and prevents the cooling water, to oxidize the iron sheet, the impurity to plunge the active face to lengthen bearing's service life. As a result of the rolling mill bearing enclosure question, the bearing failure most is approaches the body of roll side the spot, the bearing is frequently because of the lubricant pollution, the outflow, causes the components active face to wear, flaking even to disrupt, specially cold belt rolling mill's emulsion permeating, causes the lubricant to expire is quicker
　　Bearing's seal divides into the bringing seal and the outside seal two kinds. The outside seal mainly uses the design which the labyrinth type and the contact type unify. The labyrinth level are more (is not lower than two-pole) the gap smaller seal effect to be better. Labyrinth gap basis bearing size size way chosen to one-sided 0.6~1.5mm; Axial 4~6mm.
　　Contact skeleton oil seal: It applies on the rolling mill is quite widespread, to increase the effect to be possible 2-3 compound uses. The oil seal has the directivity, cannot install instead. The hot-rolling mill general attire two oil seals, two oil seal lip mouth must to the bearing seat outside, prevent the outside contamination to plunge. The cold belt rolling mill general attire three oil seals approach a bearing's oil seal lip mouth to inward, with prevents the lubricant overflow influence to roll over the material quality quantity. Uses when the oil seal must be careful, avoids installs when the roller colliding and damaging the lip mouth, affects the seal effect.
　　RBR packing ring: This is one kind of rolling mill bearing special-purpose rubber lip type packing ring, widely is applied in recent years. The RBR packing ring uses the axial seal the way, his/her the lip mouth pastes in gland's basic plane, the influence which beats the roller, the bearing interior's old fat may not overflow, the exterior cooling water, oxidizes the iron sheet, the impurity to enter by the lip mouth impediment, has the good seal effect. When easy to operate, roll changing the roller loads the bearing seat not any influence.

Answer 2

The passage is too long.
I am impatient to translate it into English.
Translation machine isn't good enough to do this work well.

You should ask someone professional.

Answer 3

Bearing mill performance can be used effectively to a large extent depend on the lubrication, lubricants known as "the fifth-largest bearing parts." Bearing the mill causes damage to more than 40 percent are caused by poor lubrication, bearings to reduce the mill consumption, we must choose suitable for the use of the conditions of lubrication methods and quality lubricants, designed to prevent installation of water and foreign body penetrated the skin, and other reliable Seal.
At present the main mill bearing lubrication and resin used lubricating oil and gas. Most manufacturers are now using the easy lubrication of fat way lubrication, lubrication oil and gas taken if possible, can mill bearing lubrication in a more ideal working conditions, will significantly reduce consumption of bearings.

1, fat lubrication

Lipid lubrication is a simple way, the roll replacement for the characteristics of a very broad application. Bearing mill work should be based on temperature, speed, rolling force and sealed waterproof performance, shock and vibration size, for the fat to choose suitable methods such as the grease. To choose high temperatures, strong viscosity, and the extreme pressure performance and high-performance anti-Shuilin formal factory grease. According to mill bearing characteristics of the work should be chosen with the EP additive # 2, # 3, lithium-fat or fat polyurea.

Although high-performance grease procurement costs are high, but with less, bearing long life, the overall cost is to reduce the consolidated. Also grease the filling must be adequate and filled in place, different brands of grease can not mix so that the mill bearing oil film work surface will always be in normal conditions.

2, filling of fat

Grease will be filled when the initial bearing internal space to fill, edger or oblique roller bearings at each covered from top to bottom, filled with enough capacity to grease. Roll each other after the grease to check whether the hardening black, it was impurities pollution, whether of emulsification. If the above situation should complete the replacement of grease and check seals and seal the structure and replace or improve; if the situation is good fat can be added after the new continue to be used.

3, lubricating oil and gas

Lubricating oil and gas is the ideal lubricating bearings, bearings in the work of compressed air from time to time with oil drops into the internal bearings and lubricants to stay in the internal bearings, air bearings will run away in the heat, water vapor to prevent ingress of external impurities Bearing internal. Oil has not been atomized not pollute the environment.

4, sealing device

Bearing the seal is to keep the internal state of good lubrication and prevent the cooling water, iron oxide skin, ingress of surface impurities extend the service life of bearings. As mill bearing seal problem, bearing damage is the most roller Shence near the site, often because of bearing grease pollution, the loss so that parts of the surface wear, spalling or even break-ups, in particular the cold strip mill into the emulsion, Grease failure faster.

Bearing the seal into its own seal and external sealing two. Seal used mainly outside the maze of contact and a combination of design. The more the maze of class (not less than two poles) the effect of sealing the smaller the gap the better. According to the maze of space bearing size from the size of the radial unilateral 0.6 ~ 1.5 mm; axial 4 ~ 6 mm.

Contact skeleton SEAL: its mill on the application of a broader, in order to increase effectiveness can be tied for the use of 23. SEAL is directional, not anti-loaded. Hot-general with the two oil seals, the two oil seal lip have to housings, to prevent the outside world dirt ingress. General cold strip mill around with the three oil seal bearing a seal to the lip, to prevent the spillover effects Gacai quality lubricating grease. To be careful when using the seal, to avoid damaged when loaded roller lip, the impact of sealing effect.

RBR-ring seal: This is a rolling mill bearings for the rubber lip-ring seals in recent years been widely used. RBR seal ring used axial seal, its lip in Gland paste, the base level, not roll beating the impact of bearing the old internal fat can overflow, the external cooling water, iron oxide skin, was lip to prevent impurities Access, a better seal effect. And easy to use, when the roll-roll into housings not be affected.

Answer 4

用百度在线翻译直接翻译一下吧

Answer 5

太专业了，帮不上忙

Answer 6

英语高手请帮忙？很急，这周就要交了

有点不太明白～！是翻译么？？提问要把问题写明白些好吧！！！
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