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Questions and Answers
What is the main purpose of etching on steel surfaces?
What is the main purpose of etching on steel surfaces?
To reveal hidden digits or marks
What is the composition of Fry's reagent, also known as Solution 1?
What is the composition of Fry's reagent, also known as Solution 1?
90gms of crystalline cupric chloride, 120ml of concentrated hydrochloric acid, and 100ml of water.
What should be used to clean the surface after applying Solution 1?
What should be used to clean the surface after applying Solution 1?
Acetone
How often should the appearance of the mark be checked during the etching process?
How often should the appearance of the mark be checked during the etching process?
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What is the purpose of Alternate Solution 1?
What is the purpose of Alternate Solution 1?
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How long may the etching process take to complete?
How long may the etching process take to complete?
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What is the primary purpose of using acetone to clean the surface after applying Solution 1?
What is the primary purpose of using acetone to clean the surface after applying Solution 1?
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Why is it important to alternate between Solution 1 and Solution 2 during the etching process?
Why is it important to alternate between Solution 1 and Solution 2 during the etching process?
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What is the primary function of the 15% nitric acid solution in the etching process?
What is the primary function of the 15% nitric acid solution in the etching process?
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How long should the surface be swabbed with Solution 1 during the initial application?
How long should the surface be swabbed with Solution 1 during the initial application?
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What is the purpose of drying the surface with cotton wool after applying the acid copper chloride solution?
What is the purpose of drying the surface with cotton wool after applying the acid copper chloride solution?
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Why is it necessary to apply Solution 1 and Solution 2 alternately during the etching process?
Why is it necessary to apply Solution 1 and Solution 2 alternately during the etching process?
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