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Garbuzova КР2 Option 39
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2. Steel X6VF was chosen for the manufacture of edging punches. Specify the composition, designate and
Justify the mode of heat treatment, explaining the effect of doping on transformations,
Occurring during heat treatment. Describe the structure and properties of the stamps after
Heat treatment.
3. For the heating elements of resistance, a nichrome X20H80 alloy was chosen. Please specify
Composition and requirements for alloys of this type. Give the temperature limits
Applicability of the alloy.
4. For castings of complex configuration bronze BFO4-0.2 is used. Specify the composition
Alloy, its structure and designate a heat treatment mode for removing internal
Stresses that occur after casting.
5. Describe the main properties of ceramics and its application in engineering
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