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Essay

Polymer Lab

Essay specific features

 

Issue:

Technology

 

Written by:

Sharon T

 

Date added:

March 15, 2015

 

Level:

University

 

Grade:

B

 

No of pages / words:

4 / 955

 

Was viewed:

3639 times

 

Rating of current essay:

 
Essay content:

Molten polymer is injected under pressure into a mold. Method Put the plastic material (Polypropylene) in granular form into the hopper. Set the injection molding temperature: nozzle 1 240 °C, zone1 220 °C, zone 2 180 °C, zone 3 20 °C. Startup operations Press the red emergency stop button and release it by rotating in the direction of arrow...
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Mechanical testing of polypropylene samples. Tensile testing of thermoplastics Standards: AS 1145 (Australian standard), ASTM D 638 (US standard) Testing equipment: Universal testing machine Zwick Z010; Electronic digital calliper Pro-max. Method: Measure and record the dimensions of the cross sections of the test specimen; Clamp up specimen in the crossheads of machine and run the test...
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