机械类专业英语应用Unit-9课件.pptx

1、Unit 9 Manufacturing TechnologiesCasting,Forming and Welding难句释义难句释义 With some materials it is often difficult to remove defects arising out of the moisture present in sand castings.“arising out of”意为“由引起，产生”。全句译为：在砂型铸造时，一些材料由于湿度引起的缺陷很难消除。难句释义难句释义 The drag moulding flask is kept upside down on the b

2、ottom board along with the drag part of the pattern at the centre of the flask on the board.“along with”意为“随着，和一起”，“upside down”意为“颠倒”。全句译为：将下模砂箱反过来放置在底板上，使下箱模型位于砂箱的中央并置于底板上。难句释义难句释义 Because of their durability and smooth surface finish,metal patterns are extensively used for large-scale casting pro

3、duction and for closer dimensional tolerances.“close”在此处表示“精密的”，常用来修饰“tolerance”“公差”。全句译为：由于金属模型耐用性和表面光洁度好，它们被广泛地应用在大规模铸造生产和精密尺寸公差加工的场合。难句释义难句释义 Since white metal has very small shrinkage,the white metal pattern can be made use of for making,additional patterns without worrying about the double shri

4、nkage allowances.全句译为：由于收缩率很小，使用白色合金制作附加模型时不需要将收缩余量翻倍。难句释义难句释义 Therefore,a permanent mould,called die may be made from which a large number of castings,anywhere between 100 to 250 000 can be produced,depending on the alloy used and the complexity of the casting.此句中“made”和“from”不是一个词组，“from”和后面的关系代词“

5、which”放到一起翻译。全句译为：因此，可以制作永久性铸型或刚模来满足大批量铸件的生产。生产的铸件数量可介于100到250000个之间，取决于刚膜合金种类和铸件的复杂程度。难句释义难句释义 Rod drawing is similar to wire drawing except for the fact that the dies are bigger because of the rod size being larger than the wire,but a rod drawn in coiled form is to be straightened first and then c

6、ut into proper lengths.全句译为：棒材拉拔与线材拉拔类似，只是由于尺寸的增大需要采用更大的拔模。但是将棒材拉拔成盘绕形式时，首先需要增大强度，然后切割成合适的尺寸。难句释义难句释义 The resistance of the joint,is a complex factor to know because it is composed of the resistance of the electrodes,contact resistance between the electrode and the workpiece,contact resistance betwe

7、en the two workpiece plates,and resistance of the workpiece plates.注意翻译时的多个并列宾语。全句译为：焊接接头的电阻是一个复杂的因素，因为它由电极的电阻、电极和工件的接触电阻、两个工件板的接触电阻和工件板的电阻组成。words and expressions casting ksti n.铸造;铸件 refractory rifrkt()ri adj.&n.难熔的;耐火物质 directional properties 各向异性 alloy li n.合金 forging f:di n.锻造;锻件 metallurgical,

8、metl:dikl adj.冶金的;冶金学的 foundry faundri n.铸造,铸造类;铸造厂 moisture mist(r)n.水分words and expressions drag moulding flask 下模砂箱 ram rm vt.夯实 clearance klirns n.空隙 drag drg n.下砂箱 compact kmpkt vt.&vi.压紧,使坚实 vent wire 通气针 dowel pins 定位销 cope flask 上砂箱words and expressions sprue spru n.注入口,铸口 pouring basin 浇注槽

9、bellows beluz n.风箱 core prints 型芯座 warpage w:peid n.翘曲,弯曲,扭曲 plywood plaiwud n.夹板,胶合板 veneer vni(r)n.胶合板的一层薄木片 contour kntu(r)n.轮廓words and expressions durability,djurbilti n.耐久性;耐用年限 corrosion kru()n n.腐蚀 shrinkage allowances 收缩留量;收缩容许量 clay klei n.粘土;泥土 epoxy resin 环氧树脂 lead lid n.铅 polyurethane p

10、lijurein n.聚氨酯;聚亚安酯 thermosetting museti adj.热固的;热硬化性的words and expressions synthetic resin 合成树脂;人造树脂 phenol finl n.石碳酸,苯酚 formaldehyde frmldihaid n.甲醛 methylene meili:n n.亚甲基 tetramine tetrmain n.羟化四甲铵 curing kjuri n.固化;硬化 Investment Casting 熔模铸造 expendable ikspendb()l;ek-adj.排出的;不重复使用的words and ex

11、pressions cluster klst n.群;簇 slurry slri n.泥浆;悬浮液 ceramic sirmik adj.陶瓷的 ethyl silicate 硅酸乙酯 sodium silicate 硅酸钠;水玻璃 fused silica 熔融石英;石英玻璃 zircon z:kn n.锆石 ceramic coating 陶瓷涂层words and expressions binder baind(r)n.粘合剂 borne b:n v.(bear的过去分词)承担;承受 graphite grfait n.&vt.石墨;黑铅用石墨涂（或搀入等）magnesium mgni

12、zim n.镁 furnace fnis n.火炉,熔炉 blister blist(r)n.气泡;砂眼 porosity p:rsti n.有孔性,多孔性 wrought rt adj.锻造的;加工的;精细的words and expressions crucible krusib()l n.坩埚 centrifugal sentrifju:gl adj.离心的 ingot igt n.锭;铸块 recrystallization ri,kristlaizein n.再结晶,再结晶作用 crystal kristl n.结晶,晶体 nucleate nju:klieit v.（使）成核 de

13、formation,difmei()n n.变形 Tin tin n.锡words and expressions Beryllium brilim n.铍 Molybdenum mlibdnm n.钼 Tantalum tntlm n.钽 Tungsten tst()n n.钨 coalescence,kolsns n.合并;联合;接合 configuration knfigrein n.构造;结构;外形 extrusion ikstrun n.挤出;推出;喷出 cylinder silind(r)n.圆筒;汽缸words and expressions container kntein n

14、.集装箱;容器 dummy block （在活塞与热金属之间的）挤压垫 rod rdz n.竿;杆 conical knikl adj.圆锥的;圆锥形的 reel ri:l n.卷轴;卷盘;卷筒 tensile tensail adj.拉力的;可伸展的;拉伸 pickling pikli n.酸洗;浸酸 sulling sli n.黄化;氧化表层words and expressions phosphating fsfeiti n.磷化处理 liming laimi n.加石灰,撒石灰 mandrel mndrl n.（圆形）心轴 seamless simlis adj.无缝的;无伤痕的 em

15、bossing imbsi n.压纹;压花;模压加工 bolts boults n.螺栓 screw skru:n.螺钉 rivet rivit n.铆钉words and expressions adhesive bonding 附着粘合 brazing breizi n.&v.钎焊;铜焊;用锌铜合金钎接 soldering sldri n.软焊;低温焊接;热焊接 disassemble dissembl vt.解开,分解 disfigure disfig(r)vt.使变丑;损毁的外形 brake shoe linings 制动蹄衬片 damping dmpi n.阻尼 elastomer

16、ilstm(r)n.弹性体,人造橡胶words and expressions abbreviation bri:viein n.缩写;缩写词 acetylene setilin n.乙炔;电石气 cathode kud n.阴极 anode nud n.阳极 current krnt n.电流;水流;涌流 ionized ain,aiz adj.电离的;已电离的 plasma plzm n.等离子体 trench trent n.沟,沟渠words and expressions shielded i:ldid adj.隔离的;屏蔽了的;防护的 shielded metal-arc weld

17、ing 气保护金属极电弧焊 coated electrode 涂剂焊条 stick electrode 手工焊条 impurities impjurti n.杂质 Inert-Gas 惰性气体 homogeneous hmdi:nis adj.同性质的,同类的 helium hilim n.氦words and expressions argon:gn n.氩 Hydrogen haidrdn n.氢 thoria ri n.氧化钍 zirconia zkuni n.氧化锆 flux-cored arc welding 药芯焊丝电弧焊 spatter spt(r)n.喷溅;飞溅 atomic hydrogen welding 原子氢焊 plasma arc welding 等离子弧焊words and expressions stud arc welding 螺柱电弧焊 fire cracker welding 躺焊 amperage mprid n.安培数;电流强度