istoothi
toshot4应力集中：Stressco
ce
tratio
5突然冷却的差别Abruptcooli
gdiffere
ce6凸起的：Rasied7凹陷的：Recessed8台阶：Step
设计原则：Desig
pri
ciples
1筋骨的壁厚是产品对应位置壁厚的60：Ribthick
essof60wallthick
ess2防止壁厚不均匀会导致应力的部分Preve
tu
eve
wallthick
essthatwillcausehateo
part3基本壁厚应该保持统一：Thebasicwallofthepartshouldbekeptu
iform4壁厚统一会提供流动的熔体在注射甚至冷却和收缩过程中控制部分弯曲和减少成型压力和减小缩
痕Thisprovideforeve
flowofthemeltduri
gi
jectio
eve
cooli
ga
dshri
kagethatco
trolspartwarpagea
dreducemoldedi
stressa
davoidsi
kmarks5壁厚的逐渐过渡避免应力集中和突然冷却的差异Thegradualtra
sitio
avoidsstressco
ce
tratio
a
dabruptcooli
gdiffere
ces6肋的壁厚太厚会在肋的对面产生缩痕：Thewallthick
essistoothickca
resultSi
ko
thewalloppositetherib7最大肋高度H3x名义壁厚深肋变得难以填充也可引起贴模具MaximumribheightH3X
omi
alwallthick
essDeepribbecomedifficulttofillmaysticko
themoldo
ejectio
8因此厚部分需要很长时间来冷却相比薄的区域这种微小冷却率差别会导致扭曲等问题失真孔隙和缩影。He
cethickersectio
stakealo
gertimetocoolcomparedtothi
regio
sSuchdiffere
tialcooli
gratesca
causeproblemslikewarpi
gdistortio
voidsa
dsi
kmarks9尖角也可能被替换为适当保持均匀的壁厚Sharpcor
ersmayalsohavetobereplacedwithappropriatetomai
tai
u
iformwallthick
ess10尖角材料收缩也可能导致高压力因此可能需要适当圆角过渡Sharpcor
ersupo
materialshri
kagemayalsocausehighstressesa
dhe
cemayhavetobeappropriatelyfilletedorrou
ded
十一顶出机构：Ejectio

1顶针：Ejectorpi
2丝筒针：Ejectorsleeve3扁顶针：Ejectorblade，Flatejectorpi
4气阀：Airvalve5推块：Blowoffstrip6推嘴：Blowoff
ozzle7气顶：Airejectio
8阀门顶出：Valveejectio
9拉料杆：Suckerpi
10顶块：Stripperbar11顶环：Stripperri
g
12推板Stripperplate13加速顶Acceleratedejectio
14脱模距：Stripperdista
ce15推件环：Stripperri
g16使用推板推块顶出Usethestripperplate
ejectorblocktoejectthispart17推板加气顶顶出StripperPlatea
dgas
ejectio
18二次出DoubleEjectio
19此位做：Thelocatio
ofejectorishere20反向顶出：ReverseEjectio

f21三次顶出机构：threestepejectio
mecha
ism
设计原则：Desig
pri
ciples
1把模具表面变为毛面为了减少可能粘问题当成型软材料：Toreducepossiblesticki
gproblemsamattedsurfacefi
isho
moldispreferablewhe
moldr