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目 錄
第一章 對(duì)塑件進(jìn)行工藝分析·························1
1.1分析塑件使用材料的種類及其工藝性··········································1
1.2分析塑件結(jié)構(gòu)工藝性························································1
第二章選擇注射機(jī)確定型腔數(shù)························2
2.1根據(jù)塑件的形狀估算其體積和重··············································2
2.2選擇設(shè)備型號(hào)規(guī)格,確定型腔數(shù)················································2
2.2.1注射機(jī)額定注射量·····················································2
2.2.2根據(jù)塑件精度確定型腔數(shù)···············································3
2.2.3根據(jù)生產(chǎn)批量確定型腔數(shù)···············································3
第三章確定成型方案································5
3.1確定成型位置······························································5
3.2確定分型面································································5
3.3脫模方式··································································5
3.4澆注系統(tǒng)形成······························································5
3.5冷卻系統(tǒng)和加熱系統(tǒng)考慮····················································5
3.6確定成形零部件的結(jié)構(gòu)形式··················································5
第四章繪制結(jié)構(gòu)方案草圖····························7
4.1注射量的校核······························································7
4.2鎖模力與型腔內(nèi)平均壓力、注射壓力的校核····································7
4.3模具厚度與注射機(jī)閉合高度校核··············································9
4.4注射機(jī)開(kāi)模行程····························································9
第五章計(jì)算與說(shuō)明·································10
5.1脫模力計(jì)算·······························································10
5.1.1計(jì)算公式································································10
5.2成型零部件工作尺寸計(jì)算···················································10
5.2.1定模、動(dòng)模(型腔、型芯)選用材料··········································10
5.2.2型腔側(cè)壁厚度和底版厚度確定··············································11
5.2.3型腔、型芯工作尺寸確定··················································12
5.3推桿計(jì)算·································································17
5.3.1推桿選用材料····························································17
5.3.2計(jì)算推桿長(zhǎng)度····························································17
5.4進(jìn)行關(guān)鍵零件的強(qiáng)度和剛度校核··············································18
5.4.1推桿的強(qiáng)度和剛度的校核·················································18
5.4.2型腔型腔壁厚和底板厚度校核·············································20
總結(jié)········································································21
致謝········································································22
參考文獻(xiàn)····································································23
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