1、機械專業英語機械專業英語PROJECT ONEEngineering Materials and Heat Treatment1.1 Task 1 Learn Engineering Materials1.2 Task 2 Heat Treatment of MetalsTask 1 Learn Engineering MaterialsWords and phrases：lubricant lu:briknt n.光滑劑ceramics sirmiks n.陶瓷，陶瓷制品polymer plm(r) n. 聚合物Composite kmpzt a.合成的，復合的； n.混合物zinc zk

2、n.鋅carbon k:bn n.碳chromium krmim n.鉻manganese mni:z n. 錳l molybdenum mlbdnm n.鉬l tungsten tstn n. 鎢l vanadium vnedim n.釩l Carbon steel 碳素鋼l Tool steel 工具鋼l Alloy steel 合金鋼l Harden h:dn v.硬化；淬火l Self-hardening steel 自硬鋼l Bolt blt n. 螺栓l Gear (r) n.齒輪l bearing ber n.軸承l shaft :ft n.軸l stainless steel

3、不銹鋼l heat-resistant steel 耐熱鋼l high-speed steel 高速鋼l cast iron 鑄鐵l cast iron gear 鑄鐵軸承l white cast iron 白口鑄鐵l pig iron 生鐵l scrap iron skrp 廢鐵l iron ore (stone) :(r) 鐵礦石l steelmaking 煉鋼l carbon equivalent kwvlnt 碳當量l gray cast iron re 灰鑄鐵l graphite flake grfat flek 石墨片l nodular ndjl a.球狀的，粒狀的l plasti

4、c deformation and fracture plstk di:f:men frkt(r) 形變和裂變l nodular cast iron 球墨鑄鐵l distinguishing dstgw a. 有區別的，明顯的，有特征的l feature fi:t(r) n.特征，特征l malleable mlibl a.有延展性的，可鍛的l catalyst ktlst n.催化劑l coarse k:s a. 粗糙的l precaution prk:n n.預警，警告l in terms of 根據，按照l equivalent kwvlnt a. 等量的，相當的l outstandin

5、g atstnd a.突出的，顯著的l titanium ttenim n.鈦l nickel nkl n.鎳l aluminum alloys lju:minmlz 鋁合金l high thermal conductivity :ml 高熱導性l strength-to-weight ratio re 強重比l low density denst 低密度l brass (copper-zinc alloys) br:s 黃銅l built-up edge 切削卷邊，切屑瘤lgray cast iron 巴氏合金lcorrosion resistance krn 耐腐蝕性lstiffness

6、stfns n.硬度，剛度lductility dktlt n.韌性，可延展性lformability f:mblt n.可成型性lshock resistance k 抗沖擊性lload-bearing 承載ltableware teblwe(r) n.餐具labrasive bresv n.研磨器a.研磨的lthermal conductivity 導熱性ladhesive dhi:sv n.黏結劑，粘膠劑l molecular mlekjl(r) a.分子的l molecule mlkju:l n.分子l polymerization plmrazen n.聚合l corrosion k

7、rn n.腐蝕l plywood plawd n. 夾板l fibreglass fabls n.玻璃纖維l crude kru:d a.天然的，未經加工的l heat-resistant material 耐熱資料l shatter t(r) v.粉碎，破壞l be used for 用于l be formed from 由組成l polymeric materials plmerk 高分子資料l reinforced concrete ri:nf:st kkri:tl 鋼筋混凝土l metal-matrix composites (mmc)l metl metrks kmpzit 金屬基復

8、合資料l crystalline materials krstlan 晶體資料l synthetic resin snetk rezn合成樹脂l foamed plastic 泡沫塑料l spark plugs 火花塞l traditional ceramics 普通陶瓷l compact disks (cds) kmpkt 高密度磁盤l strength parameters prmtz 強度參數Text AnalysisnAlthough pure metals are occasionally used,n combinations or metals called alloys are

9、 normally designed to provide improvement in particular desirable property or permit better combinations of properties. n 譯文：雖然純金屬較少運用，但多種金屬復合而成的合金通常能滿足特殊性能需求或者到達更好的性能組合。n High-speed steel is also known as self-hardening steel.n 高速鋼也成為自硬鋼。n be known as 被稱作n The more carbon the steel contains and the

10、 quicker the cooling is, the harder it becomes.n n 鋼的含碳量越高，冷卻速度越快，鋼就變得越硬。n n Some special alloy steels should be used for such parts because the alloying elements make them tougher, stronger, or harder than carbon steels. Some alloying elements cause steel to resist corrosion, and such steels are ca

11、lled stainless steels. n 一些特殊的合金鋼被運用，相對于碳鋼來說，由于合金元素可以提高鋼的韌性、強度和硬度。一些合金元素可以防腐蝕，這樣的合金被稱作不銹鋼。 Tools made of high-speed steel containing tungsten, chromium, vanadium, and carbon, may do the work at much higher speeds than carbon tool steels.Questions 1、What is the metal? Try to describe it using the wor

12、ds in passage or of your own. Metals have the general characteristics of good electrical and thermal conductivity, relatively high strength, high stiffness, ductility or formability, and shock resistance.Questionsn 2、What is called “carbon?n (1) Low carbon steel contains from 0.05 to 0.15 percent carbon, this steel is also knows as