模具基礎(chǔ)知識(shí)講解(二)---澆注系統(tǒng)設(shè)計(jì)-文庫吧資料
2025-08-07 15:55本頁面
【正文】 澆 口太小 ,導(dǎo) 致噴流痕 產(chǎn) 生 厚度差 異過 大 ,導(dǎo) 致二次噴流痕 產(chǎn) 生 R角 過 小 ,氣體 通路接近把手內(nèi) 側(cè) ,外側(cè)則因體積 收 縮 造成凹陷痕 跡 多澆口設(shè)計(jì) MultiGate Design 針點(diǎn)澆 口 Pin Gate 扇 型澆口 Fan Gate 潛 伏 澆 口 Submarine Gate 側(cè) 澆口 Edge ( Film ) Gate 擊片 澆 口 Tab Gate 閥型澆 口 Valve Gate 環(huán)型澆 口 Ring Gate 澆 口 種類 Gate Types 矩形 邊緣澆口設(shè)計(jì) Rectangular Edge Gate Design L = ~ mm W = 澆口寬 度 ( mm ) gate width in mm A = 型腔表面 積 ( mm2 ) surface area of cavity in mm2 n = 材料常數(shù) material constant for PE, PS for POM, PC, PP for CA, PMMA, PA for PVC h = n t h = 澆 口厚度 ( gate thick. in mm ) t = 零件壁厚 ( wall thick. in mm ) W t L h 30AnW ?扇形 澆 口 設(shè)計(jì) Fan Gate Design L= W= w= 澆 口寬度 [mm] gate width in mm A= 型腔表面 積 [ mm2 ] surface area of cavity in mm2 n= 材料常數(shù) [ material constant ] for PE, PS for POM, PC, PP for CA, PMMA, PA for PVC 澆 口厚度 [ gate thick. in mm] t= 零件壁厚 [ wall thick. in mm ] 30?n h1 = n t h2 = wh1/D 重 疊 式 澆 口 設(shè)計(jì) Overlap Gate Design W= w= 澆 口寬度 [mm] gate width in mm A= 型腔表面 積 [ mm2 ] surface area of cavity in mm2 n= 材料常數(shù) [ material constant ] for PE, PS for POM, PC, PP for CA, PMMA, PA for PVC 澆 口厚度 [ gate thick. in mm] = nt 澆 口長度 [ land length in mm ] t= 零件壁厚 [ wall thick. in mm ] 30?n L1 = ~ L2 = h+( w/2 ) 擊耳 澆 口 設(shè)計(jì) Tab Gate Design L= ~ W= w= 澆 口寬度 [mm] gate width in mm A= 型腔表面 積 [ mm2 ] surface area of cavity in mm2 n= 材料常數(shù) [ material constant ] for PE, PS for POM, PC, PP for CA, PMMA, PA for PVC 澆 口厚度 [ gate thick. in mm] t= 零件壁厚 [ wall thick. in mm ] 30?nh1 = n t h2 = t 針點(diǎn)澆 口 設(shè)計(jì) Pin Gate Design L = ~ mm d = 澆 口直徑 ( mm ) gate diameter in mm t = 零件壁厚 ( mm ) wall thick. in mm A = 型腔表面 積 ( mm2 ) surface area of cavity in mm2 n = 材料常數(shù) material constant for PE, PS for POM, PC, PP
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