4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Sementiet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2017 - Paper 1
Question 4
4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Sementiet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram. Beantwoord die vrae wat volg.
FIG... show full transcript
Worked Solution & Example Answer:4.1 Noem TWEE eienskappe van ELK van die volgende staalstrukture:
4.1.1 Sementiet
4.1.2 Perliet
4.2 FIGUUR 4.1 toon 'n diagram - NSC Mechanical Technology Welding and Metalwork - Question 4 - 2017 - Paper 1
Step 1
4.1.1 Sementiet
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Answer
Die eienskappe van sementiet sluit in: dit is hard en bros.
Step 2
4.1.2 Perliet
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Answer
Perliet het goeie smeebaarheid, is baie hard, sterk en taai, en kan weerstand bied teen vervorming.
Step 3
4.2.1 Wat word die diagram in FIGUUR 4.1 hierbo genoem.
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Die diagram in FIGUUR 4.1 word genoem 'n Ysterkoolstof - ewewigsdiagram.
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 + Sementiet
E - Ferriet + Sementiet
Step 5
4.2.3 Noem TWEE eienskappe van C op die diagram.
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Answer
Twee eienskappe van C is: dit is oosteniet en het 'n fyn greinstruktuur.
Step 6
4.3 Wat is die laer kritieke temperatuur vir koolstofstaal met 'n koolstofinhoud van 0,87%?
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Answer
Die laer kritieke temperatuur vir koolstofstaal met 'n koolstofinhoud van 0,87% is 720 °C.
