Materials kontrolnaya2 / Option 1 for Garbuzova

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Uploaded: 02.03.2012
Content: 20302204529863.doc (181 kB)


Given exhaustive answers to 5 questions 1 option 2 control work on material for the training manual Garbuzova NE
1. Set the temperature quenching, and cooling medium temperature otpus Single spring steel 70. describe the essence of the transformation, the microstructure and properties of the steel after heat treatment.
2. For the manufacture of cutting tools selected R6M5 steel. Specify the composition and opredeli¬te group began its destination. Assign the mode of heat treatment, plant-dite its rationale, explaining the effect of doping on the conversion proish-dyaschie during heat treatment of the steel. Describe the microstructure and properties of the main cutting edges after heat treatment.
3. For some parts (the cheeks of drums, balls crushing mills and so on. N.) Selected steel 110G13. Specify the composition of the group and determine the steel for its intended purpose. Assign the mode of heat treatment, provide justification. Describe the microstructure of the steel and the reasons for its high durability.
4. For the production of parts used in aircraft alloy ML5. Decipher the alloy composition, select a method of manufacturing parts of this alloy and describe the mechanical properties of the alloy.
5. The polyamides and polyurethanes. Describe their structure, properties and applications in machine ob¬last.


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