Combined effect of carbon monoxide mixed with carbon dioxide in air on the mortality of stored-grain insects

2009 ◽  
Vol 45 (4) ◽  
pp. 247-253 ◽  
Author(s):  
Feng Wang ◽  
D.S. Jayas ◽  
N.D.G. White ◽  
P. Fields
2011 ◽  
Vol 89 (3) ◽  
pp. 819-846
Author(s):  
FARES A. EL-LAKWAH ◽  
ZAGHLOL A. HALAWA ◽  
METWALY M. KHATTAB ◽  
TAREK A. ABDEL -RAHMAN

1998 ◽  
Vol 34 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Ivânia Athié ◽  
Renato A.R. Gomes ◽  
Scheilla Bolonhezi ◽  
Silvia R.T. Valentini ◽  
M.Fernanda Penteado M. De Castro

2018 ◽  
Vol 216 ◽  
pp. 03001 ◽  
Author(s):  
Evgeny Ivanayskiy ◽  
Aleksei Ishkov ◽  
Aleksandr Ivanayskiy ◽  
Iakov Ochakovskii

The paper studies the influence of shielding gas on the composition and the structure of weld joint metal of 30MnB5 steel applied in essential parts of automobiles and tractors. The welding was performed in inert, oxidizing and reducing atmospheres. It was established that TIG welding with argon used as shielding gas did not provide the required mechanical properties when using conventional welding materials. Carbon dioxide during MAG welding caused partial burning of alloying elements. Carbon monoxide used as shielding gas was proved to form reducing atmosphere enabling to obtain chemical composition close to the base metal composition. Metallographic examinations were carried out. The obtained results provided full-strength weld, as well as the required reliability and durability of welded components and joints.


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