

Polizarea Metalelor
Flashcard
•
Other
•
9th Grade
•
Practice Problem
•
Easy
lidia codreanu
Used 4+ times
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26 questions
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1.
FLASHCARD QUESTION
Front
Ce este polizarea metalelor?
Back
Polizarea este operaţia tehnologică de prelucrare prin aşchiere a metalelor şi aliajelor, cu ajutorul unor scule aşchietoare numite pietre abrazive.
2.
FLASHCARD QUESTION
Front
Care sunt sculele aşchietoare utilizate la operația de polizare?
Back
Sculele așchietoare utilizate la operația de polizare se numesc pietre abrazive.
3.
FLASHCARD QUESTION
Front
Care sunt componentele pietrelor abrazive?
Back
Pietrele abrazive sunt compuse din:
1. Granule abrazive;
2. Liantul ce leagă granulele abrazive.
4.
FLASHCARD QUESTION
Front
Care sunt granulele abrazive utilizate?
Back
Granulele abrazive sunt: corindon, electrocorindon, carborund, carbură de siliciu, nitrură cubică de bor, oxid de fier, oxid de aluminiu, oxid de crom.
5.
FLASHCARD QUESTION
Front
Ce tipuri de lianţi sunt utilizaţi cu rol de legătură a granulelor abrazive?
Back
Lianții utilizați cu rol de legătură a granulelor abrazive, sunt: liant ceramic, liant elastic , liant bachelitic.
6.
FLASHCARD QUESTION
Front
Cum se clasifică pietrele abrazive după duritate?
Back
Duritatea pietrelor abrazive poate fi: moale, mijlocie, tare, foarte tare.
7.
FLASHCARD QUESTION
Front
Cum se clasifică pietrele abrazive după structură?
Back
Structura pietrelor abrazive: rară, mijlocie, deasă, foarte deasă.
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