是指對交談的語言轉(zhuǎn)換。是指對單向陳述的語言轉(zhuǎn)換。是指對交談中的兩種語言進(jìn)行即時的、一句對一句的轉(zhuǎn)換。這是一種輪流的、交替的語言或信息轉(zhuǎn)換。塑料制品加工產(chǎn)業(yè)在我國以平均每年百分之十的速度迅速發(fā)展。世界各國都把發(fā)展機(jī)械工業(yè)作為發(fā)展本國經(jīng)濟(jì)的戰(zhàn)略...塑料模具CAD集成技術(shù)摘要。所以還具有機(jī)械強(qiáng)度低。
塑料模具文獻(xiàn)綜述Tag內(nèi)容描述:
1、塑料在國民經(jīng)濟(jì)的多個領(lǐng)域中得到廣泛的應(yīng)用 ,而它的產(chǎn)量按體積計(jì)算在世界上已超過了鋼鐵的產(chǎn)量。同時 , 塑料模具是塑料成型加工中不可缺少的工具 , 在總的模具產(chǎn)量中所占的例逐年增加 , 在當(dāng)前已處于重要位置。在我國塑料模具的應(yīng)用在國民經(jīng)濟(jì)中的地位愈來愈重要。它的鋼材耗用量大 , 品種規(guī)格多 , 形狀復(fù)雜 , 表面粗糙度值要求低 , 制造難度大。因此 , 探討塑料模具的制造中的選用材料與熱處理問題 , 綜合分析其工作條件、失效、性能 , 合理選用材料與熱處理以及提高它的使用壽命 , 保證制件質(zhì)量 ,降低制造成本顯得非常重要。 1、塑料模 。
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3、南京理工大學(xué)泰州科技學(xué)院 畢業(yè)設(shè)計(jì) (論文 )外文資料翻譯 學(xué)院 (系 ): 機(jī)械工程學(xué)院 專 業(yè): 機(jī)械工程及自動化 姓 名: 張運(yùn)濤 學(xué) 號: 0601510167 外文出處: AD 附 件: 指導(dǎo)教師評語: 簽名: 年 月 日 注: 請將該封面與附件裝訂成冊。 (用外文寫 ) 附件 1:外文資料翻譯譯文 塑料模具 成技術(shù) 內(nèi)容提要 : 通過分析計(jì)算機(jī)輔助注射模設(shè)計(jì)和制造的各個環(huán)節(jié)中共享的技術(shù)和信息,本文揭示了注射模 集成技術(shù)的根本 內(nèi)涵,并提出了它的研究熱點(diǎn)和趨勢。 引言 模具 是一項(xiàng)用高技術(shù)改造模具傳統(tǒng)技術(shù)的重要關(guān)鍵技術(shù)。從六五計(jì)劃開始 ,我國有許。
4、外文科技文獻(xiàn)譯文 裝 訂 線 1 塑料制品與塑料模具的發(fā)展趨勢 1、塑料產(chǎn)業(yè) 改革開放以來,塑料制品加工產(chǎn)業(yè)在我國以平均每年百分之十的速度迅速發(fā)展,與 平均增長點(diǎn)相比,要高出 3到 5個百分點(diǎn)。現(xiàn)在,我國塑料制品已經(jīng)進(jìn)軍到了世界發(fā)達(dá)國家的水平,每年塑料產(chǎn)品的產(chǎn)量躍居世界第二,而且形成了完整的產(chǎn)業(yè)分類系統(tǒng)。 隨著塑料制品的應(yīng)用領(lǐng)域不斷擴(kuò)大,在未來 10年世界塑料制品的產(chǎn)量將在每年 3的的速度增加,在 2010年世界塑料產(chǎn)品的總?cè)萘繉⒏哌_(dá) 186萬噸。我國對塑料制品越來越大的需求將不斷,塑料產(chǎn)品的生產(chǎn)將在每年 10的的速度增加,據(jù)。
5、0前言機(jī)械工業(yè)是國民的裝備部,是為國民經(jīng)濟(jì)提供裝備和為人民生提供耐用消費(fèi)品的產(chǎn)業(yè)。機(jī)械工業(yè)的規(guī)模和技術(shù)水平是衡量國家經(jīng)濟(jì)實(shí)力和科學(xué)技術(shù)水平的要標(biāo)志。因此,世界各國都把發(fā)展機(jī)械工業(yè)作為發(fā)展本國經(jīng)濟(jì)的戰(zhàn)略重點(diǎn)之一1。生產(chǎn)水平及科學(xué)技術(shù)的不斷進(jìn)步與發(fā)展帶動了整個機(jī)械工業(yè)的快速發(fā)展?,F(xiàn)代工業(yè)中,生產(chǎn)過程的機(jī)械化,自動化已成為突出的主題。然而在機(jī)械工業(yè)中,加工、裝配等生產(chǎn)是不連續(xù)的。單靠人力將這些不連續(xù)的生產(chǎn)工序接起來,不僅費(fèi)時而且效率不高。同時人的勞動強(qiáng)度非常大,有時還會出現(xiàn)失誤及傷害2。顯然,這嚴(yán)重影響。
6、塑料模具CAD集成技術(shù) 摘要:通過分析計(jì)算機(jī)輔助注射模設(shè)計(jì)和制造的各個環(huán)節(jié)中共享的技術(shù)和信息,本文揭示了注射模CAD的集成技術(shù)的根本內(nèi)涵,并提出了它的研究熱點(diǎn)和趨勢。 關(guān)鍵詞: 計(jì)算機(jī)輔助;CAD;設(shè)計(jì)制造 1.塑料模具CAD集成技術(shù) 塑料模具的制造,包括塑料產(chǎn)品的造型設(shè)計(jì)、模具的結(jié)構(gòu)設(shè)計(jì)及分析、模具的數(shù)控加工(銑削、電加工、線切割等)、拋光和配試模以及快速成形制造等。各個環(huán)節(jié)所涉及的CAD單。
7、1 塑料模具 的 編制和使用 M. 華聯(lián) 膏模具被廣泛用于鑄造 陶瓷行業(yè)所需的用具。除了 具有一定的優(yōu)勢,由于它們工作表面下穿在體內(nèi)的水分和電解質(zhì)的行動,所以還具有 機(jī)械強(qiáng)度低,工作壽命短 的好處 。除此之外,在烘干機(jī)的溫度不能高于 65 度,高于此溫度石膏 將被銷毀。 陶瓷產(chǎn)業(yè)開始安裝時,尋找替代石膏的必要性增加為半自動成型和干燥加劇干燥條件機(jī)。我們的工廠 1967 年開始搜索替代石膏 ,并為此組織了一個研究小組 ,其 中 包含以下工人: 利亞科夫,電訊管理局局長 吉尼亞州 I. 其他人。 該研究小組在 國家陶瓷研究的數(shù)據(jù)指導(dǎo)研究。
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13、射成型 射成型 注塑主要用于生產(chǎn)熱塑性塑料零件,也是最原始的方法之一。目前注塑占所有塑料樹脂消費(fèi)量的 30%。典型的注塑成型產(chǎn)品“塑料杯、容器、外殼、工具手柄、旋鈕、電氣和通信組件 (如電話接收器 )、玩具、和水暖配件。 聚合物熔體由于其分子量具有很高的粘度;它們不能像金屬液在重力的條件下倒進(jìn)模 ,必須在高壓力下注入模具。因此 ,金屬鑄造的力學(xué)性能是由模具壁傳熱的速度決定,同時也決定了在最終鑄件的晶粒尺寸和晶粒取向 , 高壓注射成型過程中熔體的注射剪切力產(chǎn)生的主要原因是材料最后的分子取向。力學(xué)性能影 響成品都是因。
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