INCREASING VOLUME HARDNESS OF STEEL GRINDING BALLS USING Q-n-P HEAT TREATMENT
نویسندگان
چکیده
منابع مشابه
An investigation of the corrosive wear of steel balls in grinding of sulphide ores
Ball mills are common grinding equipment in mineral processing industries. Ball wear results from three mechanisms namely impact, abrasion and corrosion. Of these, the corrosion mechanism is the least investigated, due to its chemical-electrochemical nature. Therefore, the aims of this research were to investigate the grinding chemistry influence (slurry pH, solid percentage, water chemistry an...
متن کاملMODELING AND OPTIMIZING THE CORROSIVE WEAR OF STEEL BALLS IN BALL GRINDING MILL
This paper was aimed to address the modeling and optimization of factors affecting the corrosive wear of low alloy and high carbon chromium steel balls. Response surface methodology, central composite design (CCD) was employed to assess the main and interactive effects of the parameters and also to model and minimize the corrosive wear of the steels. The second-order polynomial regression model...
متن کاملan investigation of the corrosive wear of steel balls in grinding of sulphide ores
ball mills are common grinding equipment in mineral processing industries. ball wear results from three mechanisms namely impact, abrasion and corrosion. of these, the corrosion mechanism is the least investigated, due to its chemical-electrochemical nature. therefore, the aims of this research were to investigate the grinding chemistry influence (slurry ph, solid percentage, water chemistry an...
متن کاملEffect of Thermochemical Treatment on The Structure, Hardness and Wear Behavior of Electrolss Ni-P Coated 4140 Steel
In the present stady, thermochemical treatment in H2/NH3 atmosphere was used as a post-treatment for electroless Ni-P coatings on the AISI 4140 steel substrates. High phosphorus (9%) coatings with thicknesses of 2, 24 and 48 m were applied and the effects of the thermochemical treatment on the morphology, structural changes, roughness, hardness and wear resistance of coatings were studied b...
متن کاملEffect of Thermochemical Treatment on The Structure, Hardness and Wear Behavior of Electrolss Ni-P Coated 4140 Steel
In the present stady, thermochemical treatment in H2/NH3 atmosphere was used as a post-treatment for electroless Ni-P coatings on the AISI 4140 steel substrates. High phosphorus (9%) coatings with thicknesses of 2, 24 and 48 m were applied and the effects of the thermochemical treatment on the morphology, structural changes, roughness, hardness 

and wear resistance of coatings were studi...
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ژورنال
عنوان ژورنال: Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport
سال: 2018
ISSN: 2307-6666,2307-3489
DOI: 10.15802/stp2018/129535