Garbuzova KR2 Option 14

Product description

• Assign a quenching temperature, a cooling medium and a tempering temperature of the hairpins from

Steel Mt6, which must have a hardness of 207-230 HB. Describe their microstructure and

Properties.

• Steel P18K5F2 was chosen for the manufacture of piercing punches. Specify the composition

Steel and determine the steel group for the purpose. Assign and justify the thermal mode

Processing, explaining the effect of doping on the transformations occurring at all stages

Heat treatment of this steel. Describe the microstructure and properties of the punches after

Heat treatment.

• Constantan MNMc40-1.5 alloy was chosen for rheostatic devices. Decipher the composition,

Indicate to which group this alloy belongs, as intended, describe the structure and electrical

Characteristics of this alloy.

• As a material for casting liners of bearings of sliding the alloy

B88. Specify the composition and determine the alloy group for the intended purpose. Draw a microstructure and

Indicate the basic requirements for alloys of this group.

• Describe the current understanding of the molecular structure of polymers. Please specify

Structure of thermoplastic and thermosetting polymers.