cast white iron grinding balls

The Properties and Performance of Cast Iron Grinding Media ...

Early applications of cast iron grinding balls in mineral processing operations were disastrous due to spalling and premature breakage. Better control and understanding of a high chromium cast iron metallurgical system have led to the use of high chromium cast iron balls in all types of grinding.

high chrome cast wet ball mill media ball

The microstructure of high chromium white cast iron grinding ball as-cast and after heat treatment was observed by metallographic microscope. The sample of 10mm* 10 mm* 8 mm in size at the center of the grinding ball was cut by weld and polished with 200 # to 1500 # metallographic sandpaper.

High-chromium Cast Ball Heat Treatment Process …

Cast grinding balls are solidified in high chromium cast iron to form (CR, Fe)7C3 type carbides, which are discontinuous in the structure, so they have …

STUDY ON THE BREAKDOWN OF MILLING BALLS MADE OF …

The grinding balls made of chromium white cast iron is used in many industries such as cement manufacturing, mining, metallurgy ... The grinding balls are filled in about 40% volume of the grinding equipment. When the ball mill works, …

High-Alloy White Irons :: Total Materia Article

High-alloy white cast irons are an important group of materials whose production must be considered separately from that of ordinary types of cast irons. In these cast iron alloys, the alloy content is well above 4%, and consequently they cannot be produced by ladle additions to irons of otherwise standard compositions.

Applications of Ni-hard alloy. a Liner castings for ball ...

Abstract The grades of Ni-hard white cast iron alloys (ASTM-A 532) are known as abrasion resistant white iron. A large number of castings are produced with …

The Role of Retained Austenite on the Performance of High ...

In this study, high chrome white cast iron (HCWCI) and carbidic austempered nodular iron (CANI) grinding balls were subjected to different heat treatments to yield various amounts of retained austenite, after which they were subjected to abrasive wear testing.

ball casting grinding iron, ball casting grinding iron ...

Alibaba offers 2,414 ball casting grinding iron products. A wide variety of ball casting grinding iron options are available to you, such as applicable industries, warranty, and video outgoing-inspection.

The Development of Material Grinding Ball in Ballmill …

material used in the imported grinding balls and liners contain carbon (C) above 2.1%, it can be concluded that the material belongs to the category of White cast Iron.

White Iron Casting | Castings | Iron Castings ...

White cast iron displays white fractured surfaces due to the presence of an iron carbide precipitate called cementite. White iron is too brittle for use in many structural components, but with good hardness and abrasion resistance and relatively low cost, it finds use in such applications as: Wear surfaces (impeller and volute) of slurry pumps

Wear Mechanism of High Chromium White Cast Iron and Its ...

The detailed deformation mechanism and its microstructural modifications of white cast iron grinding balls used in comminution have been investigated using transmission electron microscopy (TEM) and XRD. De-shaping is the primary mode of ball consumption, and fracture of balls is a relatively uncommon failure mode. Deshaping is the manifestation of abrasive wear …

Grinding Ball Wear & Breakage by Impact & Abrasion Tests

Numerous grinding balls were obtained from eight major US manufacturers. All balls were nominally 75-mm diam. Steel grinding balls came from 6 manufacturers in 13 different lots, and alloyed white cast iron balls came from 3 manufacturers in 1 lot each. At least three balls selected at random from each lot were evaluated.

Chemical Composition and Morphology of M7C3 Eutectic ...

mium white cast iron alloying with vanadium, particularly impact toughness, which is used for grinding balls ore, coal, gravel, and cement. In the industrial conditions, the balls of diameters 20–50 mm are cast in sand molds (Shell proce-dure), whereas balls of diameters 60–110 mm are cast in water-cooled permanent molds. Due to relatively ...

Grinding Media - Union Process

Zirconium Oxide Balls (95% ZrO2) are the strongest, best wearing ceramic media for metal-free, pharmaceutical and food processing grinding. These balls have a white, shiny appearance. They are also available in 3⁄8″ and ½" cylinders. This 95% grade is high-cost. 95% Beads; Specific Gravity: 6.0; Hardness: Hv 1150 kg/mm 2; Relative Cost: High

The Introduction of High Chrome Grinding Media Balls ...

High Chrome Alloy Grinding Media Balls. High chromium white cast iron grinding balls are also called high chromium alloy casting balls.Most of the wear-resistant materials enterprise use medium frequency electric furnace through the melting of high-quality scrap steel and chromium alloy materials after reasonable matching.What is more,they also use grinding ball metal …

Ball Mills - Mineral Processing & Metallurgy

Decolloy is one of the hardest and toughest white cast iron compositions commercially available. It is essentially a high carbon base chrome and nickel iron. Unless otherwise specified, a hard iron liner is furnished. This liner is made of the best grade white iron and is most serviceable for the smaller size mills where large balls are not used.

Ni-Hard - Nickel Institute

As grinding balls, mill liners, pulverizer rings and roll heads, slurry pump parts, ... name for a family of white cast irons alloyed with nickel and chromium to give high hardness and outstanding resistance to ... lab test with the ratio of the hardness of white iron to the abrasive hardness1,2

The effect of heat treatment on the toughness, hardness ...

In this case, high chromium based cast iron were identified as a potential material for making the grinding media balls. High chromium cast irons (HCCIs) are excellent wear-resistant materials ...

high-chromium white cast iron grinding ball microstructure ...

The Inﬂuence Of Microstructure On The Corrosion And Wear …. corrosion in metal loss in ball … Interpretation of microstructure in high chromium white iron weld …Cast high chromium media in wet grinding.In Q.R … »More detailed

High hardness and toughness of white cast iron: The ...

High-chromium white iron balls with a diameter of 80 mm were cast from 1550 °C by chilled molds. The Fe–2.4C–12Cr (mass%) cast balls were provided by DeXing Casting Co. LTD. of Jiangxi Copper Corporation. They belong to hypoeutectic cast iron.

Cast Grinding Iron Ball/Foundry Steel Ball - Home | Facebook

Cast Grinding Iron Ball/Foundry Steel Ball, Jinan. 324 likes · 1 talking about this. Zhangqiu Taitou Special Steel Ball Factory manufactures high …

Manufacture of Wear-Resistant Cast-Iron Grinding Balls ...

Abstract A manufacturing technology has been developed for wear-resistant cast-iron grinding balls without shrinkage defects. In this method, the balls are cast in single-use sand–clay molds. A new approach to designing the casting system is developed. By numerical modeling, the time dependence of solidification is derived. As a trial, grinding balls are …

White Cast Iron – IspatGuru

Cast iron is an important engineering material with a number of advantages, mainly good castability and machinability and moderate mechanical properties. White cast iron contains 1.8 % -3.6 % C, 0.5 % -1.9 % Si and 1 % – 2 % manganese (Mn). White cast irons are so called because when broken, the fracture surface is white.

Lab-Research on Composition, Structure and Property of the ...

Lab-Research on Composition, Structure and Property of the High Alloy White Cast Iron Grinding Ball Used in Molydenum MineralCN

Metallurgical Aspects of HIGH- CHROMIUM WHITE IRONS

NICKEL-CHROMIUM WHITE IRONS The oldest group of high-alloy ironsofindustrialimportance,the nickel-chromium white irons (Ni-Hard irons), have been produced for more than 50 years and are cost-effective materials for crushing and grinding. In these martensitic white irons, nickel is the primary alloying element, because3 to5%Niiseffectivein

The role of retained austenite on performance of grinding ...

of grinding media per ton of ore milled. (11) The role of retained austenite on the performance of cast iron based grinding media. (balls) is controversial. One school of thought is …

As-cast microstructure design of high chrome white cast ...

Primary analyses of cast microstructure design of high chrome white cast iron grinding media (1) August 13, 2021 - 6:44 am Casting grinding balls making machine July 21, 2021 - 7:32 am Development and production of Bainite Ductile Iron grinding ball (3) …

Low white cast iron grinding slug - Norcast Corporation

Compositional ranges suggested for the manufacture of Ni-Hard grinding balls and slugs are about 3% carbon, 0.5% silicon, 0.5% manganese, 1.5-4% nickel and 1.0-2% chromium, the rest being iron. A low alloy white cast iron having a hardness and a microstructure similar to those of Ni-hard was disclosed in Canadian Patent No. 1,125,056 owned by ...

Grinding Media Forged Steel Cast Steel Alloyed White Cast ...

Steel grinding balls came from 6 manufacturers in 13 different Table 1 - Hardness and Description of the Commercial 75-mrn Balls lots, and alloyed white cast iron balls came from 3 manufac- turers in 1 lot each. At least three balls selected at random from each lot were evaluated. The balls are described in Table 1 and

Wear Behavior of Iron and Steel Castings for the Mining ...

The abrasive wear resistance of a large group of cast steel and white iron grinding mill liners was studied using a combination of service and laboratory testing. The hardness of the liners was the metallurgical variable which correlated best with the weight losses experienced during both service exposure and pin abrasion tests. Chemical and …

Wear Mechanism of High Chromium White Cast Iron and …

12%The detailed deformation mechanism and its microstructural modifications of white cast iron grinding balls used in comminution have been investigated using transmission electron microscopy (TEM) and XRD. De-shaping is the primary mode of ball consumption, and fracture of balls is a relatively uncommon failure mode. Deshaping is the …