(高職高專)模具專業(yè)英語

內(nèi)容概要

《模具專業(yè)英語》(第二版)是新世紀高職高專教材編審委員會組編的模具設(shè)計與制造類課程規(guī)劃教材之一?！　「母镩_放以來，我國的模具制造行業(yè)不斷發(fā)展壯大，與國外同行之間的業(yè)務(wù)交往以及大量的模具技術(shù)設(shè)備的引進也隨之增多，模具專業(yè)英語的應(yīng)用越來越廣泛。對于模具專業(yè)的大中專學生和從事模具設(shè)計與制造的工程技術(shù)人員來說，熟練掌握模具行業(yè)的英語技能是非常必要的。模具技術(shù)涉及高分子材料、模具金屬材料、模具結(jié)構(gòu)、成型加工設(shè)備等諸多領(lǐng)域，模具專業(yè)所涉及的科技英語詞匯和語句等雖常見于各專業(yè)文獻中，但難以全面、系統(tǒng)地反映模具材料、設(shè)備及工藝的內(nèi)在聯(lián)系?！　”窘滩膶⒆髡咴谀＞咝袠I(yè)的工程實踐與其在高職教育領(lǐng)域長期的教學體會相結(jié)合，有針對性地選擇了塑料模具和沖壓模具方面的專業(yè)技術(shù)文章和相關(guān)技術(shù)資料進行組織編寫，所選文章涵蓋了模具材料、注塑機器、模具結(jié)構(gòu)、模具加工設(shè)備及加工技術(shù)等方面的知識。　　本教材共分五個單元，分別敘述了模具材料、注射模具設(shè)計、鍛壓成形及模具設(shè)計、模具加工技術(shù)、模具報價與結(jié)算方面的內(nèi)容，大部分文章選自相關(guān)專業(yè)教材或相關(guān)專業(yè)刊物原文。全書圖文并茂，與專業(yè)課程聯(lián)系緊密，每課課文后都附有新單詞、詞組注釋、互動練習等模塊。其中互動練習模塊的內(nèi)容是在前一版的基礎(chǔ)上新增的，實用性較強，著重訓練學生的歸納和總結(jié)能力，加強學生對專業(yè)知識的理解，方便教師與學生在課堂上的交流互動，同時也可提高學生的學習興趣。為擴大學生的閱讀范圍并補充知識量，本教材在每一篇課文后都安排了閱讀材料，以供學有余力的學生閱讀，也可選擇其中部分內(nèi)容作為課后作業(yè)?！　?本教材可作為高等職業(yè)院校、高級技師學院模具設(shè)計與制造等相關(guān)專業(yè)的教材，也可供相關(guān)工程技術(shù)人員參考使用。

書籍目錄

Unit One   Mold Materials　Lesson  1  Polymers　Lesson  2  Mold Materials　Lesson  3  Selection of the SteelUnit Two   The Injection Mold Design　Lesson  4  The Injection Molding and Machine　Lesson  5  Three-plate Mold　Lesson  6  Feed System　Lesson  7  Mold Cavities and Cores　Lesson  8  Ejection System　Lesson  9  Splits　Lesson  10  Mold Cooling 　Lesson  11  Runnerless Molds Nozzle TypeUnit Three  Press Process and Die Design　Lesson  12  Stamping and Punching Dies, Compound Die Design　Lesson  13  Extrusion　Lesson  14  Forging ProcessesUnit Four  Manufacturing Technology of Mold　Lesson  15  Numerical Control　Lesson  16  Electric Discharge Machining　Lesson  17  Wire Electrical Discharge Machining(Wire EDM)Unit Five  Quotation and Contract for Mold & Die　Lesson  18  Introduction of Quotation for Mold　Lesson  19  Mold Making Contract基本詞匯表參考文獻

章節(jié)摘錄

　　An alloy is a partial or complete solid solution of one or more elements in a metallic matrix. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may be homogeneous in distribution depending on thermal （heat treatment） history. Alloys usually have different properties from those of the component elements.　　Alloying one metal with other metal（s） or non metal（s） often enhances its properties. For instance, steel is stronger than iron, its primary element. The physical properties, such as density, reactivity, Youngs modulus, and electrical and thermal conductivity, of an alloy may not differ greatly from those of its elements, but engineering properties, such as tensile strength and shear strength may be substantially different from those of the constituent materials. This is sometimes due to the sizes of the atoms in the alloy, since larger atoms exert a compressive force on neighboring atoms, and smaller atoms exert a tensile force on their neighbors, helping the alloy resist deformation. Alloys may exhibit marked differences in behavior even when small amounts of one element occur.　For example, impurities in semi-conducting ferromagnetie alloys lead to different properties, as first predicted by White, Hogan, Suhl, Tian Abrie and Nakamura. Some alloys are made by melting and mixing two or more metals. Brass is an alloy made from copper and zinc. Bronze, used for bearings, statues, ornaments and church bells, is an alloy of copper and tin.　　Unlike pure metals, most alloys do not have a single melting point. Instead, they have a melting range in which the material is a mixture of solid and liquid phases. The temperature at which melting begins is called :the solidus and the temperature when melting is complete is called the liquidus. However, for most alloys there is a particular proportion of constituents （in rare cases two） which has a single melting point. This is called the alloys eutectic mixture, as shown in Fig. 1-4.

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