Materials kontrolnaya2 / variant11 on Garbuzova

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Uploaded: 15.09.2012
Content: 20915204917620.rar (18,35 kB)

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Given exhaustive answers to 5 questions 9 version 11 control work on material for the training manual Garbuzova NE
1. What are the advantages and disadvantages of surface hardening of steel products during heating by high frequency as compared with the method of carburizing hardening? Name steels used for these kinds of treatments.
2. For the manufacture of selected steel knives H05. Specify the composition of the group and determine the steel for its intended purpose. Give and justify the regime of thermal treatment. Describe the structure and properties of the steel after heat treatment.
3. Assign a brand heat-resistant steel (silhrom) for valves of automobile and tractor engines of small capacity. Specify the composition of the steel, give and justify the regime of thermal treatment. Describe the structure and properties of the steel after heat treatment.
4. For the production of a number of parts of the aircraft selected alloy D16. Specify composition and mechanical properties of the alloy after heat treatment. Describe the method of hardening of the alloy, and explain the nature of hardening.
5. Describe the GRP. Select characteristics of the filler in nature and shape. Communication requirements. Advantages and nedo¬statki fiberglass.

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