Points for MELTING SCRAP FOR DUCTILE IRON

Mleting scrap for ductile iron is very important for castings. It will influce the quality and inner structures for castings, even grinding balls.

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US3844844A - High toughness iron balls and process of making

The high toughness iron balls for grinding having excellent ductility, wear resistance, and heat resistance are composed of white cast iron having fine eutectic cementite structure formed by destroying the network structure of an eutectic structure in as-cast condition, in which said eutectic cementite has been concentric spherically and uniformly dispersed and arranged in the ball.

Wear behavior of stepped austempered ductile iron balls in

7/22/2014 · The ball mill is basically a cylindrical shell having a length of 29.46 cm and diameter of 20.32 cm. The mill is lined with neoprene rubber. The ball mill is closed at one end and a detachable lid...

Mechanical Properties and Heat Treatment Process of Ductile

Heat treatment process of ductile iron QT500-7 castings. Ball milled cast iron QT500-7 is a very commonly used material. Generally speaking, a kind of stress relief and tempering is enough for the heat treatment process.

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PDF) WEAR BEHAVIOR OF STEPPED AUSTEMPERED DUCTILE IRON BALLS

The ball mill runs with the speed of 86 rpm. Grinding Media Assessment of Grinding Media WearGrinding media wear tests were carried out in the laboratory sealed rubber lined ball mill. The iron ore sample of size -10+30 mesh was used for the experiments. Sets of 200 balls were used as grinding media, which included 25 marked balls.

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China Manufacturer with main products:Grinding Balls ,Grinding Media ,Ball Mill Liner ,Alloy Hammer ,Forged Grinding Ball ,ADI Grinding Ball ,Crusher Hammer ,High Chrome Grinding Ball. Home; Product Categories. ... ductile iron en124 manhole cover f900 heavy duty …

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Simulation on stress of large diameter CADI grinding ball

The falling ball tests were carried out on the Φ125 mm diameter Carbidic Austempered Ductile Iron (CADI) grinding balls with Mn content of 2.0wt.%, 2.3wt.%, 2.6wt.% and 3.0wt.%, respectively, and the kind of grinding ball with the most serious spalling was selected for stress simulation. The stress distribution between four

PDF Wear Behavior of Stepped Austempered Ductile Iron Balls in

BALLS IN GRINDING IRON ORE Jayaraj B.Siddan1 1Assistant Prof ,Mechanical Engg. Dept, Bheemanna Khandre Institute of Technology, Bhalki 585328 Karnataka state, India Abstract In the present study, an attempt has been made to evaluate the suitability of austempered ductile iron as grinding media material for grinding the iron ore in a ball mill.

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Ball Mill RETSCH powerful grinding and homogenization. Retsch is the world leading manufacturer of laboratory ball mills and offers the perfect product for each application the high energy ball mill e max and mm were developed for grinding with the highest energy input the innovative design of both, the mills and the grinding jars, allows for continuous grinding down to the nano range in the ...

Research and Application of Carbidic Austempered Ductile Iron

A company in Hebei Province using five damp mills saved 2 million Yuan ($328,300) in a year. 4. Because CADI contains spheroidal graphite and carbon-enriched austenite, it has a damping effect that can reduce noise around the ball mill by 10-12 decibels. 5. Because the CADI balls didn’t produce broken fragments, the closed loop system

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WEAR BEHAVIOR OF STEPPED AUSTEMPERED DUCTILE IRON BALLS

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): In the present study, an attempt has been made to evaluate the suitability of austempered ductile iron as grinding media material for grinding the iron ore in a ball mill. They are austenitised at 920 0 C for 60 minutes and given stepped austempering heat treatment:

The control of the chemical composition, microstructure and

Oct 15, 1999 · Beinite alloy ductile iron is a very good material, with good hardness and high toughness, for the liner plates of a miller. 7.. Conclusion1. Different microstructure and mechanical properties can be obtained by different heat treatment and the addition of different amounts of alloy.

Effect of wet grinding on structural properties of ball

An attempt has been made to evaluate the suitability of austempered ductile iron (ADI) as media material for grinding iron ore in a ball mill. Spheroidal graphite (S.G) iron balls are austenitised at 900 deg. C for 60 minutes and given stepped austempering treatment at 280 deg. C for 30 minutes and 60 minutes followed by 380 deg. C for 60 ...

Compartment plate for ball mill of High chromium cast iron

As the main component of the ball mill, it is used to keep the average size of each storehouse grinding body from coarse to fine grinding storehouse grinding gradually narrowed, to adapt to the grinding process of coarse grained materials with the ball, fine particle with reasonable principles of balls.Every storehouse board of grate seam can ...