Molds & Tooling
5 مشاهدة
PMMA Product Weld Line Venting
ظاهرة المشكلة
Burning and bubbles coexist at weld lines; both are eliminated simultaneously after venting improvement.
تحليل الأسباب
Two melt streams converge and envelop air; without a venting channel, the gas is compressed, burnt and remains as bubbles; the confluence area is a key blind spot for venting.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based on experience alone.
الحل
①Open vent grooves in the confluence area; ②set overflow wells to guide trapped air out; ③adjust gate to change confluence position; ④reduce speed to assist venting.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
الخلاصة الأساسية
Weld line trapped air shows both burning and bubbles; venting plus overflow wells is the standard solution.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!