德馬格注塑機(jī)工藝參數(shù)優(yōu)化的步驟指導(dǎo)-在線瀏覽
2024-09-20 21:24本頁面
【正文】 Inection pressure PN hydraulicChangeover strokeStandard deviation (16 shots)Can you see a trend?Which step had the greatest effect on the consistency of the moulding?STEP EIGHTOptimising the clamp forceReduce the clamp force by steps of 50 kN (100 kN for machines over 100 tonnes) using the settings far optimised in the seven steps above.Allow the process to stabilise each time and then weigh five mouldings.Tabulate your results below and plot a graph of tonnage against part weight.Does the mould require the expected clamp force?What are the advantages of running at reduced tonnage?STEP EIGHT RESULTSInsert actual values in the relevant boxesEnter results in XL spreadsheet. Print out graph.Weight 1Weight 2Weight 3Weight 4Weight 5Mean weightClamp forceRequired clamp forcekNSTEP NINESet injection pressureUntil now the injection pressure has been set to the machine’s maximum value. From the Process Statistcs page it can be seen that the machine does not need all that pressure to fill the mould.Gradually decrease the set injection pressure until the injection time starts to increase. Increase the pressure again until the previous injection time is established with a consistency of s or better – preferably to s variation.What is the purpose of limiting the injection pressure?STEP NINE RESULTSActual peak injection pressurebarSet injection pressurebar Appendix 1TYPICAL PROCESS TOLERANCESShotweight deviation%%%%Plasticising time177。C176。 評(píng)估各個(gè)參數(shù)的更改對(duì)工藝過程穩(wěn)定性的影響 培訓(xùn)課程 2 工藝參數(shù)的優(yōu)化受訓(xùn)者手冊(cè)德馬格注塑機(jī)工藝參數(shù)優(yōu)化的步驟指導(dǎo)頁面周期分析3注塑工藝參數(shù)優(yōu)化6步驟 1: 找出轉(zhuǎn)壓點(diǎn)7步驟 1結(jié)果8步驟 2: 找出保壓時(shí)間(澆口冷凝時(shí)間)9步驟 2 結(jié)果10步驟 3: 優(yōu)化注射速度11步驟 3 結(jié)果12步驟 4: 采用正確的螺桿轉(zhuǎn)速13步驟 4 結(jié)果14步驟 5: 優(yōu)化多級(jí)螺桿轉(zhuǎn)速和背壓曲線15步驟 5 結(jié)果16步驟 6: 優(yōu)化松退17步驟 6 結(jié)果18步驟 7: 優(yōu)化保壓曲線19步驟 7 結(jié)果20TABULATED RESULTS21步驟 8: 優(yōu)化鎖模力22步驟 8 結(jié)果22步驟 9: 設(shè)定注射壓力23步驟 9 結(jié)果23典型工藝參數(shù)公差設(shè)定24成型周期分析采用下面表格估計(jì)注塑過程中的每一階段對(duì)周期的影響. 然后去機(jī)床看正在運(yùn)行的模具, 寫下實(shí)際的時(shí)間并計(jì)算出百分比.哪一階段在整個(gè)周期中占最多的時(shí)間? 那里可以是最有效的縮短成型周期? 模具 1估計(jì) %實(shí)際實(shí)際%評(píng)價(jià) 合模射臺(tái)前進(jìn)和后退注射時(shí)間保壓時(shí)間冷卻時(shí)間開模
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