4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Semenitet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram - NSC Mechanical Technology Fitting and Machining - Question 4 - 2017 - Paper 1
Question 4
4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Semenitet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram. Beantwoord die vrae wat volg.
4.2... show full transcript
Worked Solution & Example Answer:4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Semenitet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram - NSC Mechanical Technology Fitting and Machining - Question 4 - 2017 - Paper 1
Step 1
4.1.1 Semenitet
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Answer
Die eienskappe van semenitet is dat dit hard en bros is.
Step 2
4.1.2 Perliet
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Perliet het goeie smeebaarheid en is baie hard, sterk en taai, en weerstaan vervorming.
Step 3
4.2.1 Wat word die diagram in FIGUUR 4.1 hiervoor genoem?
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Die diagram in FIGUUR 4.1 word 'n ysterkoolstof ekwilibriumsdiagram genoem.
Step 4
4.2.2 Benoem A–E op die diagram getoon.
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Answer
A – Ferriet + Perliet
B – Ousteniet + Ferriet
C – Ousteniet
D – Ousteniet + Semenitet
E – Ferriet + Semenitet
Step 5
4.2.3 Noem TWEE eienskappe van C op die diagram.
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Answer
C is ousteniet, wat sag is en 'n fyn greinstruktuur het.
Step 6
4.3 Wat is die laer kritieke temperatuur vir koolstofstaal met 'n koolstofinhoud van 0,87%?
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Die laer kritieke temperatuur vir koolstofstaal met 'n koolstofinhoud van 0,87% is 720 °C.
