【正文】 影響型芯的質(zhì)量和造芯效率。芯盒的結(jié)構(gòu)形式一般有整體式、拆開式、脫落式三種，制芯時采用整體式木模。 砂箱的大?。翰捎?1300mm 1300mm 280mm 的砂箱。 河南機電高等?？茖W校畢業(yè)設計說明書 26 8 鑄造工藝圖 軸承座鑄造工藝設計 27 9 結(jié)論 本設計以軸承座鑄件的鑄造設計為研究對象， 運用所學的知識對其鑄造工藝進行分析，確定鑄造工藝參數(shù)，合理設計澆注系統(tǒng)， 利用 華鑄 CAE模擬出 軸承座的充型和凝固過程，并對模擬結(jié)果進行分析， 發(fā)現(xiàn)上表面無縮孔和縮松。 通過這次畢業(yè)設計，我對所學的課本知識有了新的認識，在這個過程中我對工藝設計有了更深的理解，鑄造工藝設計不是簡單地澆注系統(tǒng)和補縮系統(tǒng)的設計，而是在獲得合格鑄件的前提下提高工藝出品率，降低廢品率，降到 成本。在設計時澆注系統(tǒng)和補縮系統(tǒng)應同時考慮。在編制工藝時要全面考慮整個生產(chǎn)過程，并不時的對前面加以修改加以完善。這次畢業(yè)設計我盡力量用上自己所學的全部，利用學校的圖書館并上網(wǎng)查閱專業(yè)的資料，在此過程中得到了同學和師傅的支持和幫助。在此向大家表示感謝， 最后感謝論文中參考文獻的作者和批閱老師。 河南機電高等?？茖W校畢業(yè)設計說明書 28 10 致謝 在論文完成之際，我在此向 我的導師鄧想老師和同組同學 致以最誠摯的感謝！ 本論文的編寫工作，每一步都是在老師的精心指導和親切關(guān)懷下完成的。老師以嚴謹?shù)闹螌W態(tài)度 和 淵博的學識使我深受啟迪，扎實、拓寬和豐富了我的專業(yè)知識。老師謙遜嚴謹、無私奉獻的精神也對我影響深遠。藉此論文完成之際，我要向我的導師致以衷心的感謝和深深的敬意！ 同時，還得感謝我所在實習單位的大力幫助，為這篇論文的完成提供了大量的意見和幫助指正。 最后感謝論文中參考的文獻的作者， 衷心的感謝在百忙之中審閱、評審、指導我的畢業(yè)論文的專家、老師。謝謝大家！ 軸承座鑄造工藝設計 29 參考文獻 [1]劉瑞玲 .范金輝 .鑄造使用數(shù)據(jù)速查手冊 [M].北京 :機械工業(yè)出社 .2022. [2]曹瑜強 .鑄造工藝及設備 [M].北京 :機械工業(yè)出版社， 2022. [3]賈志宏 .傅明喜 .金屬材料液態(tài)成型工藝 [M].北京 :化學工業(yè)出版 .2022. [4]李晨希 .鑄造工藝設計及鑄件缺陷控制 [M].北京 :機械工業(yè)出版 .2022. [5]李弘英 .鑄造工藝學 [M].北京 :機械工業(yè)出版社 .1979. [6]王麗鳳 .熱成型工藝基礎 [M].北京 :高等教育出版社 .2022. [7]北京機械工程學會鑄造專業(yè)學會 .鑄造技術(shù)數(shù)據(jù)手冊 [G].北京 :機械工 業(yè)出版社 .1996. [8]中國鑄造協(xié)會 .鑄造工程師手冊 [M].北京：機械工業(yè)出版社 .2022. [9]李弘英，趙成志 .鑄造工藝設計 [M].北京 :機械工業(yè)出版社， 2022. [10]柳自成，荊濤 .鑄造工程的模擬與質(zhì)量控制 [M].北京 :機械工業(yè)出版 社 .2022. A boxer that only has front legs refuses to let his disability hold him back as he charges across a beach with his fourlegged 犬不愿讓殘疾成為前進的障礙，他同其他四條腿的伙伴們一同在海灘上盡情狂奔。 In an adorable video showing his first trip to the beach, Duncan Lou Who can been seen excitedly galloping along the sand and paddling in the 展現(xiàn)了名叫 Duncan Lou Who 的狗第一次來到海邊的場景，他興奮地在沙灘上飛奔、或是趟水嬉戲。 His exciting day trip was filmed by Panda Paws Rescue, a Washington statebased charity that cares for Duncan and other dogs with special Panda Paws Rescue 拍攝，該組織專門照料 Duncan 以及其他有特殊需求的狗。 Despite only having front limbs, the boxer is able to not only balance, but also run really fast and play with the other dogs that joined him for the ， Duncan 不僅能讓自己保持平衡，還能快速奔跑，和其余同他一起遠足的狗 狗玩耍。 He was born with deformed back legs, which were later removed to make the dog more fortable. Duncan 出生時，它的后肢就是畸形的， 此后為了讓他舒服些 ,只能進行截肢。 His owners, who posted the video on YouTube, said he has a wheelchair but doesn39。t like to use it.主人們將視頻傳到了 YouTube 上，他們說有一把供 Duncan 使用的輪椅，但是他并不愛用。 39。We let him be free and just walk on his two legs. There is some slow motion in this video, but none of the video has been sped up, this gives you an idea of how fast Duncan really it,39。 his owners said. “我們讓他自由地用兩條腿行走。視頻中有些特意制作的慢鏡頭，但是沒有任何一處做過加速處理，你們可以通過視頻感受到 Duncan 跑得有多快。 ”主人們說。 The thrill of running through the surf was clear to see, as Duncan raced people and dogs across the sand, with his tail wagging excitedly. Duncan踏著浪花，在沙灘上同其他人及狗賽跑，還興奮地搖著尾巴，他的喜悅之情顯而易見。 Duncan39。s owners have described him as a 39。trooper39。, adding on charity39。s Facebook page: 39。He39。s happy, healthy and as far as he knows, normal too.39。主人們用 “騎兵 ”一詞來形容 Duncan，他們在組織的 Facebook 中寫道： “他很快樂，也很健康；而且在他自己看來，他是條正常的狗。 ”39。It would be the best if he had four legs, of course, but his body wasn39。t built to have back legs and that39。s OK. He and we have just adapted.39。 “他如果能有四條腿當然最好，但是他天生就失去了后肢，這也沒什么關(guān)系，無論是他還是我們都已經(jīng)適應了這一點。 ” I39。m thankful to PSG for giving me the opportunity to continue but I feel now is the right time to finish my career, playing at the highest level. If you had told me as a young boy I would have played for and won trophies with my boyhood 河南機電高等?？茖W校畢業(yè)設計說明書 30 club Manchester United, proudly captained and played for my country over one hundred times and lined up for some of the biggest clubs in the world, I would have told you it was a fantasy. I39。m fortunate to have realised those this day, one of my proudest achievements is captaining my country. I knew every time I wore the Three Lions shirt, I was not only following in a long line of great players, I was also representing every fan that cared passionately about their country. I am honoured to represent England both on and off the wouldn39。t have achieved what I have done today without my family. I39。m grateful for my parents39。 sacrifice, which made me realise my dreams. I owe everything to Victoria and the kids, who have given me the inspiration and support to play at the highest level for such a long period. I also want to thank Simon Fuller and his team for their continued support. I want to thank all my teammates, the great managers that I had the pleasure of learning from. I also want to thank the fans who have all supported me and given me the strength to succeed. Nothing will ever pletely replace playing the game I love, however I feel like I39。m starting a new adventure and I39。m genuinely excited about what lies ahead. I39。m fortunate to have been given many opportunities throughout my career and now I feel it39。s my time to give back.