【正文】 會(huì)造成產(chǎn)品結(jié)構(gòu)上的缺陷。 圖 34是兩種方案的流動(dòng)前沿溫度圖 常州工學(xué)院機(jī)電工程學(xué)院畢業(yè)設(shè)計(jì)論文 9 （ a） (b) 圖 34為兩種方案的流動(dòng)前沿溫度 兩種方案的流動(dòng)前沿溫度： 方案（一）的溫度范圍 ～ （ c? ）； 方案（二）的溫度范圍 ～ （ c? ）。 方案二：一個(gè)澆口放在工件內(nèi)側(cè)兩個(gè)圓之間。從塑料的壁厚上 來看，壁厚最大處 3mm,最小處為 1mm,壁厚差為 2mm,較為均勻。 零件一側(cè)沿脫模方向設(shè)計(jì)有脫模斜度約為 2176。在學(xué)習(xí)了課本知識(shí)的基礎(chǔ)上達(dá)到理論與實(shí)際相結(jié)合的升華，提高自己的獨(dú)立動(dòng)手能力。 根據(jù) 塑 件的結(jié)構(gòu)特點(diǎn)進(jìn)行模具方案論證 ， 并進(jìn)行模具總體裝配圖的設(shè)計(jì) ， 主要成型零件的設(shè)計(jì) 與計(jì)算，并完成裝配圖和零件圖的繪制。注塑制品已呈現(xiàn)自動(dòng)化生產(chǎn)，對(duì)注塑成型機(jī)可以進(jìn)行遠(yuǎn)距離操作或無人操作，成型機(jī)可以根據(jù)生產(chǎn)監(jiān)測(cè)信號(hào)實(shí)時(shí)調(diào)整成型工藝條件，從而能從根本上保證塑料制品的成型質(zhì)量常州工學(xué)院機(jī)電工程學(xué)院畢業(yè)設(shè)計(jì)論文 2 不發(fā)生問題。 （ 1） 初級(jí)階段： 30年代以前，科學(xué)家研究成了酚醛塑脂，硝酸纖維素及醋酸纖維素的塑料，它們的工業(yè)特征僅是間歇法，小批量生產(chǎn)。該模具采用潛伏式澆口和側(cè)向抽芯機(jī)構(gòu)，一模兩腔。 關(guān)鍵詞： 注射模具 一模兩腔 模具設(shè)計(jì) 模擬分析 常州工學(xué)院機(jī)電工程學(xué)院畢業(yè)設(shè)計(jì)論文 ii ABSTRACT My graduation project is the injection simulation analysis and the design of the injection mold of the side cover of the disinfect a structure characteristics of the plastic part were analyzed. The Moldflow software was used for the simulation analysis and optimization of the gate position for the plastic part. By optimizing the process parameters, the defects of the injection molding were successfully avoided. Based on the simulation result, the structure designing and the material selection of its injection mold had been finished. The injection mold with two cavities adopted the hidden gate system and side corepulling CAE optimizing with mold design could shorten the mold developing cycle, reduce the product development cost and enhance the product quality. The mold was convenient to operate , with proper structure and high efficiency. Keywords: Plastic mould two cavities of the mold mold design simulation analysis 常州工學(xué)院機(jī)電工程學(xué)院畢業(yè)設(shè)計(jì)論文 I 目錄 言 ........................................................... 1 .........................................................................................................................................................................1 ................................................................................................................................................................1 ....................................................................................................................................................1 ....................................................................................................................................................2 ....................................................................................................................................................2 ...........................................................2 .....................................................2 .................................. 3 2． 1塑料的原材料分析 .............................................................................................................................................3 ......................................................................................................3 ...........................................................3 .........................................................4 .............................................................4 2． 3塑料的注射工藝參數(shù)的確定及模架的選擇 ....................................................................................................4 3. MOLD FLOW 模擬分析 ................................................ 7 3． 1網(wǎng)格劃分和修改結(jié)果 .........................................................................................................................................7 ...........................................................................................................................7 .....................................................8 ...................................... 12 ..................................................................................................................................................... 12 ..................................................................................................................................................... 12 ........................................................................................................................................ 13 ................................................................................................................................................. 13 ． 1主流道的設(shè)計(jì) .............................................................13 ......................................................14 ..............................................................14 ................................................................15 、冷卻系統(tǒng)的設(shè)計(jì)與計(jì)算 ........................................ 16 ................................................................................................................................................. 16 .................................................................................................................................... 17 ................................................... 19 ............................................................................................................................................. 19 常州工學(xué)院機(jī)電工程學(xué)院畢業(yè)設(shè)計(jì)論文 II ................................................................................................................................ 19 ......................................................19 型腔壁厚和底板厚度的計(jì)算 ...........................................................................