
03塑膠與塑膠模具
Authored by 許 俊偉
Instructional Technology
9th - 12th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
橫澆道的佈置通常是依據模穴數量、模穴大小是否相等及製品形狀而定。
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
塑膠是人們藉著化學的反應合成而得,所以又稱合成樹脂。
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
熱塑性PUR是一種耐油、耐磨耗,類似橡膠的彈性體,一般以射出或擠壓成形加工。
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
射出成形過程中,模具溫度是影響製品外觀、精度、生產效率的關鍵。
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
熱固性塑膠在常溫時為固態,加熱後軟化成液態,成為可塑性,經冷卻後硬化成固態,可反覆造形。
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╳
Answer explanation
熱塑性塑膠。
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
模具的熱處理,是理影響模具壽命的重要因素。模具材料若需施予熱處理,最好採用水冷鋼。
○
╳
Answer explanation
空冷鋼。
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
壓縮塑模在形成中要承受很大的壓力,因此所採用的模具材料除了要有較高的強度外,有些部分需要熱處理來增加硬度和韌性。
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