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Garbuzova KR2 Option 04
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Product description
1. Assign a quenching temperature, a cooling medium and a spindle release temperature
For machine tools from steel МСт6 which should have hardness 35 ... 40 HRC. Describe
Microstructure and properties of products.
2. As a result of heat treatment, the springs should receive high elasticity.
For the manufacture of their chosen steel 60S2HFA. Specify the composition, assign and justify the mode
Thermal treatment, explaining the effect of doping on the transformations occurring at
Heat treatment of this steel. Describe the structure and properties of springs after the thermal
Processing.
3. In turbine construction use steel 40Х12Н8Г8МФБ (ЭИ481). Specify the composition and
Determine the steel group according to its intended use. Assign a heat treatment mode and justify it.
Describe the structure after the heat treatment. How does the operating temperature affect the
Mechanical properties of this steel?
4. For castings of complex shapes, bronze BrOF7-0.2 is used. Decipher the composition,
Describe the structure, indicate the heat treatment used to remove internal
The stresses resulting from the casting, and describe the mechanical properties of this bronze.
5. Describe the effect of powder and fibrous fillers on the properties of rubber
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