相關商品
商品簡介
名人/編輯推薦
書摘/試閱
商品簡介
《普通高等教育“十二五”規劃教材：材料加工工程科技英語》是材料成形與控制工程專業學生用以掌握本專業英語詞匯，閱讀、翻譯及寫作相關英文文章的基礎教程。本書的主要內容包括相與結構、材料檢測方法、金屬材料熱處理、軋製理論及工藝、擠壓與拉拔、鑄造、鍛造及焊接工藝、CAD／CAM等，另外選用了12篇閱讀材料加以補充。
《普通高等教育“十二五”規劃教材：材料加工工程科技英語》主要作為高等院校相關專業學生的教材，也可供從事金屬材料加工工作的工程技術人員參考。
《普通高等教育“十二五”規劃教材：材料加工工程科技英語》主要作為高等院校相關專業學生的教材，也可供從事金屬材料加工工作的工程技術人員參考。
名人/編輯推薦
《普通高等教育"十二五"規劃教材:材料加工工程科技英語》主要作為高等院校相關專業學生的教材，也可供從事金屬材料加工工作的工程技術人員參考。
書摘/試閱
(1) List the finished product of the rolling plant.
(2) What shape of the initial material in cross-section is filled into the rolling mill?
(3) Is it expedient to roll small blooms or billets in heavy blooming mills? Why?
(4) State the advantages of two-stage procedure rolling sheet and plate in modem metallurgical plants.
(5) What kind of rolling mill can serve the purpose rolling both blooms and slabs?
(6) On what does the number of rolling operations depend?
(7) List the chief operations in metal rolling production.
4.6 The Quality Control of Rolling Process
Proper control over the rolling process and quality control of the finished product are of primary impor-tance.
One quality control procedure practised in modem rolling mill departments is melt inspection on the basis of which the quality of the steel is determined and the melt is assigned for rolling. The scope of this inspection depends upon the requirements made to the grade of steel under consideration.
Melt inspection begins in the steelmaking department where samples of the melt are taken to deter-mine the average chemical composition of the steel in each melt. Usually two samples are taken from each ladle. The second sample serves to additionally check the chemical analysis. This is done in cases when it is necessary to check the content of certain elements or if such inspection is stipulated by special requirements of the customer. In certain cases, the samples for this analysis are taken in the rolling mill department from the billet or the finished product. In the last years, many elements are determined by spectrographic analysis which has become one of the most widespread physical methods of determining the chemical composition of metals and alloys.
您曾經瀏覽過的商品
購物須知
大陸出版品因裝訂品質及貨運條件與台灣出版品落差甚大，除封面破損、內頁脫落等較嚴重的狀態，其餘商品將正常出貨。
特別提醒：部分書籍附贈之內容(如音頻mp3或影片dvd等)已無實體光碟提供，需以QR CODE 連結至當地網站註冊“並通過驗證程序”，方可下載使用。
無現貨庫存之簡體書，將向海外調貨：
海外有庫存之書籍，等候約45個工作天;
海外無庫存之書籍，平均作業時間約60個工作天，然不保證確定可調到貨，尚請見諒。
為了保護您的權益，「三民網路書店」提供會員七日商品鑑賞期(收到商品為起始日)。
若要辦理退貨，請在商品鑑賞期內寄回，且商品必須是全新狀態與完整包裝(商品、附件、發票、隨貨贈品等)否則恕不接受退貨。