scholarly journals Influence of Steel Plate Roughness on the Frictional Properties of Cereal Kernels

2018 ◽  
Vol 10 (4) ◽  
pp. 1003 ◽  
Author(s):  
Zdzisław Kaliniewicz ◽  
Zbigniew Żuk ◽  
Zbigniew Krzysiak
Author(s):  
Zdzisław Kaliniewicz ◽  
Zbigniew Żuk ◽  
Zbigniew Krzysiak

The aim of this study was to determine the correlation between the external friction angle of cereal kernels and the roughness of a steel friction plate. The experiment was performed on the kernels of five principal cereals: wheat, rye, barley, oats and triticale. Flat seed units composed of three spaced kernels joined by adhesive tape were analyzed in each experimental variant. The external friction angle of flat seed units was determined on 9 steel friction plates with different roughness. Measurements were performed in 3 replications with a photosensor device which registered the external friction angle of cereal kernels. On friction plates with surface roughness Ra=0.36 to Ra=6.72, the average values of the angle of external friction ranged from 17.56° in rye kernels to 34.01° in oat kernels. The greatest similarities in the angle of external friction were observed between wheat and triticale kernels, whereas the greatest differences were noted between barley and oat kernels and between barley and triticale kernels. Friction plates made of ST3S steel should be characterized by the lowest surface roughness to minimize energy consumption during grain processing. The optimal surface roughness of steel friction plates was determined at Ra=0.9.


Author(s):  
Zdzisław Kaliniewicz ◽  
Zbigniew Żuk ◽  
Zbigniew Krzysiak

The aim of this study was to determine the correlation between the external friction angle of cereal kernels and the roughness of a steel friction plate. The experiment was performed on the kernels of five principal cereals: wheat, rye, barley, oats and triticale. Flat seed units composed of three spaced kernels joined by adhesive tape were analyzed in each experimental variant. The external friction angle of flat seed units was determined on 9 steel friction plates with different roughness. Measurements were performed in 3 replications with a photosensor device which registered the external friction angle of cereal kernels. On friction plates with surface roughness Ra=0.36 to Ra=6.72, the average values of the angle of external friction ranged from 17.56° in rye kernels to 34.01° in oat kernels. The greatest similarities in the angle of external friction were observed between wheat and triticale kernels, whereas the greatest differences were noted between barley and oat kernels and between barley and triticale kernels. Friction plates made of ST3S steel should be characterized by the lowest surface roughness to minimize energy consumption during grain processing. The optimal surface roughness of steel friction plates was determined at Ra=0.9.


Author(s):  
Muna I Khalaf ◽  
Khulood A Saleh ◽  
Khalil S Khalil

Electro polymerization of N-benzothiazolyl maleamic acid (NBM) was carried out on stainless steel plate electrode in a protic medium of monomer aqueous solution using electrochemical oxidation procedure in electrochemical cell.Spectroscopic characterization techniques were investigated to obtain information about the chemical structure of polymer. The anti-corrosion action of polymer was investigated on stainless steel by electrochemical polarization method. In addition, the effect of adding nanomaterial (TiO2, ZnO (bulk-nano)) to monomer solution on the corrosion behavior of stainless steel was investigated. The results obtained showed that the corrosion rate of S-steel increased with temperature increase from 293K to 323K and the values of inhibition efficiency by coating polymer increase with nanomaterial addition. Apparent energies of activation have been calculated for the corrosion process of S-steel in acidic medium before and after polymeric coating. Furthermore were studied the effect of the preparing polymer on some strain of bacteria.


Alloy Digest ◽  
2016 ◽  
Vol 65 (10) ◽  

Abstract ABREX 450LT (hardness target of 450 HBW) is one of the Abrex series of abrasion resistant steel plate alloys. All of the products are maintained at very low impurity levels, making them well suited to welding and forming. The LT designation indicates an extra tough grade. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on surface qualities as well as forming, machining, and joining. Filing Code: SA-769. Producer or source: Nippon Steel and Sumitomo Metal Corporation.


Alloy Digest ◽  
2016 ◽  
Vol 65 (9) ◽  

Abstract ABREX 600 (hardness target of 600 HBW) is one of the Abrex series of abrasion resistant steel plate alloys. Abrex 600 is a standard option. All of the products are maintained at very low impurity levels, making them well suited to welding and forming. This datasheet provides information on composition, physical properties, and hardness as well as fracture toughness. It also includes information on surface qualities as well as forming, machining, and joining. Filing Code: SA-765. Producer or source: Nippon Steel and Sumitomo Metal Corporation.


Alloy Digest ◽  
2016 ◽  
Vol 65 (6) ◽  

Abstract ABREX 400LT (hardness target of 400 HBW) is one of the Abrex series of abrasion resistant steel plate alloys. All of the products are maintained at very low impurity levels, making them well suited to welding and forming. The LT designation indicates an extra tough grade. This datasheet provides information on composition, physical properties, hardness, tensile properties, and bend strength as well as fracture toughness. It also includes information on surface qualities as well as forming, machining, and joining. Filing Code: SA-757. Producer or source: Nippon Steel and Sumitomo Metal Corporation.


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