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03塑膠與塑膠模具

Authored by 許 俊偉

Instructional Technology

9th - 12th Grade

03塑膠與塑膠模具
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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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

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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

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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

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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

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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。

Answer explanation

熱塑性塑膠。

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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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

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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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