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The invention discloses a high-chrome wear-resistant cast iron material and a heat treatment method. The high-chrome wear-resistant cast iron material is prepared from iron as a main raw material, and carbon, silicon, manganese, sulphur, phosphorus, chrome, molybdenum, nickel and copper as auxiliary materials in manners of melting and casting ...
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The influence of heat treatment on microstructure and mechanical properties of high chromium white cast iron alloyed with titanium was investigated. The austenitizing temperatures of 980°C and 1150°C for 1 hour each followed by tempering at 260°C for 2 hours have been performed and the effect of these treatments on wear
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Jul 18, 2013· Destabilisation (critical heat treatment) of austenite at 970°C for 2·5 h followed by annealing (subcritical heat treatment) at 600°C for 13 h results in massive precipitation of M 23 C 6 carbide particles along with spheroidised M 7 C 3. The reversed order of heat treatments leads to extensive precipitation of M 7 C 3 secondary carbide ...
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High Chromium wear-resistant cast iron is widely used because of its excellent wear resistance. High Chromium cast iron grinding balls are widely used in cement, mining, thermal power generation, etc. To improve the production and heat treatment process of grinding balls and actively explore the relevant laws in the production process has a good …
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The austempering heat treatment process is helpful for the high chrome cast iron grinding balls served in the large ball mill. Key words： high chromium cast iron grinding ball; austempering; multi-stage austenitizing; impact toughness; impact fatigue resistance. The grinding ball is the grinding media in the ball mill.
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Jul 29, 2011· The success of the heat treatment of the high Cr cast irons can be evaluated according to the degree of attainment of the following goals: ... Behavior of hardness and retained austenite in heat treatment of high chromium cast iron for abrasive wear resistance. Transactions AFS, 112 (2004), pp. 899-910. View Record in Scopus Google …
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May 30, 2016· Part 1 High chromium cast iron machining and cutting tool selection High chromium cast iron is a kind of high hardness and high strength alloy white cast iron with high corrosion resistance wear-resistant, high chrome cast iron in the case without any heat treatment, the generally hardness of HRC45 or more, the tensile strength 650 ~ …
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While low-alloyed pearlitic white iron castings develop hardness in the range 350 to 550 HB, the high-alloyed white irons range from 450 to 800 HB. ASTM Specification A 532 covers the composition and hardness of white iron grades used for abrasion-resistant applications. Many castings are ordered according to these specifications: however, a ...
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High chrome white iron heat treatment BINQ Minin. 2013112High Chrome Casting, High Alloy Steel Castings Exporter So the integrity of the castings and the care and control used in heat treatment are decisive the formation of the properties of highchrome white cast iron More detailed. Oline Chat
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A manufacture method for HI-chrome cast iron for grinding balls, founding is: the melting in 100KW, 10kg medium-frequency induction furnace of sample blank, smelting temperature is 1450 ℃～1500 ℃, adopts high temperature casting, tapping temperature is 1400 ℃ of left and right; Thermal treatment process is: quench 980 ℃, air cooling is ...
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