Development and Technical Experience of Plastic Injection Machine for STEAM Education

2020 ◽  
pp. 215-230
Author(s):  
Jui-Hung Cheng ◽  
Hsin-Hung Lin
Keyword(s):  
Steam Education ◽  
Plastic Injection

AMPCO 940 and AMPCO-TRODE 940

Alloy Digest ◽  
1993 ◽  
Vol 42 (3) ◽  
Keyword(s):  
Copper Alloys ◽  
Heat Treating ◽  
Resistance Welding ◽  
Chromium Alloy ◽  
Heat Treated ◽  
Association Class ◽  
Potential Applications ◽  
Minimum Requirements ◽  
Nickel Silicon ◽  
Plastic Injection

Abstract AMPCO 940 is a precipitation-hardening copper-nickel-silicon-chromium alloy developed for resistance welding and other applications now using the 1% beryllium-copper alloys. The heat-treated alloy is capable of meeting the RWMA (Resistance Welder Manufacturers Association) Class 3 minimum requirements-95,000 psi tensile strength, 90 Rockwell B hardness and 45% IACS electrical conductivity. Potential applications include resistance welding tips, wheels and fixtures. A major use is in plastic injection molding. AMPCO-TRODE 940 is used for repair welding and overlays. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as casting, forming, heat treating, machining, and joining. Filing Code: CU-434. Producer or source: Ampco Metal Inc. Originally published as Ampcoloy 940, April 1982, revised March 1993.

A Study on Development and Application of the Educational Program for School Administrators in Creative STEAM Education

2018 ◽  
Vol 18 (2) ◽  
pp. 169-189
Author(s):  
Youngmin Kim ◽  
Jinsu Choi ◽  
Youngju Lee ◽  
Jinyoun Kim ◽  
Youngja Ha
Keyword(s):  
Educational Program ◽  
School Administrators ◽  
Steam Education

A study on Competencies and Educational Needs of School Administrators for Creative STEAM Education

2018 ◽  
Vol 18 (1) ◽  
pp. 83-102
Author(s):  
Youngmin Kim ◽  
Jinsu Choi ◽  
Youngju Lee ◽  
Kyusung Lee
Keyword(s):  
School Administrators ◽  
Educational Needs ◽  
Steam Education
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