8.1 Noem VIER gebruik van 'n sweismeter - NSC Mechanical Technology Welding and Metalwork - Question 8 - 2022 - Paper 1
Question 8
8.1 Noem VIER gebruik van 'n sweismeter.
8.2 Noem TWEE oorsake van ELK van die volgende sweisdefekte:
8.2.1 Onvolledige penetrasie:
8.2.2 Sweisspatsels:
8.3 Noem... show full transcript
Worked Solution & Example Answer:8.1 Noem VIER gebruik van 'n sweismeter - NSC Mechanical Technology Welding and Metalwork - Question 8 - 2022 - Paper 1
Step 1
Noem VIER gebruik van 'n sweismeter.
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Om die hoek van die sweislas te meet.
Om die penetrasiediepte te bepaal.
As 'n sweisvlaklyn te dien.
Om die afstand tussen die sweisrigting en die werkstuk te verifiëer.
Step 2
Noem TWEE oorsake van ELK van die volgende sweisdefekte:
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Step 3
Onvolledige penetrasie:
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Te lae sweisstroom kan lei tot swak penetrasie.
Verkeerde blaasvlamhoek kan veroorsaak dat die metaal nie goed gemelt word.
Step 4
Sweisspatsels:
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Verstoring in die gesmelte sweispoel kan oorsake wees van spat.
Nat/vuil elektrodes kan lei tot onvolmaakte sweiswerking.
Step 5
Noem TWEE voorkomingsmaatreëls vir ELK van die volgende sweisdefekte:
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Step 6
Porositeit/Poreusheid:
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Maak die sweisoppervlak skoon om vervuiling te voorkom.
Verseker dat elektrodes droog is voordat dit gebruik word.
Step 7
Insnyding:
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Gebruik die korrekte boogsweispoed om die insnyding te verminder.
Verhoog die boogspanning indien nodig.
Step 8
Identifiseer elke vlam.
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