Investment castings (steel,nickel alloys and cobalt alloys). General technical requirements

2005 ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 37-42
Author(s):  
O Тymoshenko ◽  
O Borys ◽  
T Skorobahatko

The issue of the necessity of developing state standards in the sphere of illuminating and orienting and lighting fire equipment in Ukraine as for classification and general requirements in general and general technical requirements and methods of fire-rescuer lantern tests, in particular, are considered. The main provisions of these standards, which are developed in the Ukrainian Civil Protection Research Institute (UkrCPRI) and on the recommendation of the Standardization Technical Committee of Ukraine TC 25 "Fire safety and fire protection equipment" are outlined and have been earlier introduced to the Program of works for the national standardization for the year of 2018. The application of the basic provisions of these standards will contribute to the introduction of the leading world scientific and technological achievements in Ukraine in the development and production of illuminating and orienting and lighting fire equipment in general, and in particular testing of purchased foreign lanterns for compliance with standardized technical requirements, which will allow more objectively evaluate and compare their technical specifications. In this case, the results of the testing of some test methods and test equipment are presented, according to ANSI/NEMA FL1-2009 Flashlight Basic Performance Standard, when conducting research in UkrCPRI of the best world models of lanterns equipped with modern LED sources of light, power sources, electronics, etc., in particular two fire-rescuer lanterns: Peli 3765 LED (USA) and Vantage®180 (USA), a group fire lantern VULCAN® LED ATEX LANTERN (USA), which are currently supplied domestic fire trucks ООО «VК «Pozhmashyna» and experimental model of  personnel fire lantern developed in UkrCPRI. The specified test methods apply to the following basic lighting technology characteristics of the lantern, such as: light flux, peak power of light and duration of operation of the lantern, useful range of light beam.


Author(s):  
T. F. Baranova ◽  
I. V. Dyakonova ◽  
N. I. Shunkina ◽  
S. I. Polyansky ◽  
Yu. R. Nurtdinov ◽  
...  

The technology of manufacturing ceramic molds from electrocorundum powders of the company «Technoceramics» for the casting of parts from heatresistant nickel alloys was investigated and developed. The powders were used instead of the commercially used electrocorundum powders of JSC Rusal. Molds for metal casting of various sizes and configurations of the internal cavity for casting cooled and uncooled blades of heat-resistant alloys were manufactured and tested. Technical properties of casting molds are preserved. The characteristics of castings of equiaxial and directional structure are provided in accordance with the technical requirements of the drawing and technical conditions. Ill. 5. Ref. 2. Tab. 6.


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