資源描述：
《分散強(qiáng)冷制備半固態(tài)成型漿料及坯料工藝的研究可研報(bào)告》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在工程資料-天天文庫。
1、Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagrapSelection.ParagraphFormat.LineSp
2、acingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.Line
3、SpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
4、aaaaaaaaaaaaaahF分散強(qiáng)冷制備半固態(tài)成型漿料及坯料工藝的研究項(xiàng)目可行性研究報(bào)告一、選題的必要性目前，我國汽車工業(yè)正從載重卡車向輕型汽車和轎車發(fā)展的戰(zhàn)略轉(zhuǎn)移。鑄件在汽車工業(yè)中占有重要地位，鑄件重量約占汽車自重的20%--30%。當(dāng)前，隨著全球性的能源緊張和生態(tài)環(huán)境的日益惡化，要求汽車的重量輕、油耗省和尾氣排放低的呼聲越來越高。因此，汽車工業(yè)的發(fā)展趨勢(shì)是用輕合金取代傳統(tǒng)的黑色金屬材料，如鋼和鑄鐵，實(shí)現(xiàn)汽車的輕量化和節(jié)能化。因此，發(fā)達(dá)國家汽車工業(yè)對(duì)鋁合金和鎂合金等輕金屬的需求量越來越大。轎車工業(yè)中鋁合金鑄件在2001年占整個(gè)鑄件總量的50%左右，甚至出現(xiàn)全鋁發(fā)動(dòng)機(jī)和全鋁車身。7Sele
5、ction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagrapSelection.ParagraphFormat.LineSpacin
6、gLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpac
7、ingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFaaaaaaaaaaaaaaaaa
