Heat Treatment High Cr Cast Irons Patent

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 after preparation.

06-09-2004· JP-2006070350-A chemical patent summary.,To provide a high Cr cast iron excellent in heat crack resistance and a heat treatment method thereof for a wear resistant member subjected to a heat cycle,and the cooling rate of the surface during quenching of this high Cr cast iron By setting the temperature to 5 ° C./sec or,

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heat treatment high cr cast irons patent . GM stone crusher machine is designed to achieve maximum productivity and high reduction ratio. From large primary jaw crusher and impact crusher to cone crusher and VSI series for secondary or tertiary stone crushing, GM can supply the right crusher as well as complete crushing plant to meet your material reduction

KR-20060051027-A chemical patent summary.

JP4482407B2 - High Cr cast iron products with excellent heat crack resistance and heat treatment method for high Cr cast iron materials,2004-09-06 Priority to JP2004258532A priority Critical patent/JP4482407B2/en 2006-03-16 Publication of JP2006070350A publication Critical patent/JP2006070350A/en

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The invention discloses a heat treatment method for Cr-Mo wear-resistant cast iron. The Cr-Mo wear-resistant cast iron is prepared from components in percentage by weight as follows: 2.8%-3.8% of C, 1.65%-2.7% of Si, 0.5%-1.2% of Mn, 0.12%-0.7% of P, 0.2%-0.5% of Cr, 0.3%-0.8% of Mo, less than or equal to 0.09% of S and the balance of Fe.

heat treatments on the microstructure of high-chromium cast iron: A microscopy examination approach. J Mater Eng Perform 18(8): 1078 -1085. 6. Efremenko V, Shimizu K, Chabak Y (2013) Effect of destabilizing heat treatment on solid-state phase transformation in high-chromium cast irons. Metall Mater Trans A 44: 5434-5446. 7.

be produced by full heat treatment. Martensitic matrix microstructures with secondary carbides of heat-treated high Cr white irons are shown in Fig. 2 [19]. All as-cast structures contained patches of secondary carbides [6]. These secondary carbides were precipitated during cooling in the baked sand

cast iron cast iron heat treatment cooled Prior art date 1965-06-17 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US556759A Inventor Greenwood Roger Kearsley,

An end-use casting of a high chromium white iron, i.e. a casting that has been heat-treated, includes a ferrous matrix and Oat least two different chromium carbides dispersed in the matrix, with at least one of the chromium carbides including a transformation product of an as-cast chromium carbide.

Heat Treatment High Cr Cast Irons Patent Oct 06, 2002· A Kible, J.T.H PearceInfluence of heat treatment on the microstructure and hardness of 19% high chromium cast irons Cast Met., 6 (1) (1993), pp. 9-15 Google Scholar

12-12-2018· Common Heat Treatment for the Specific Cast-Iron Types. High-alloy (e.g., high chromium, high nickel-chromium) white irons can be heat treated. For example, nickel-chromium white-iron castings are given a stress-relief heat treatment because, properly made, they have an as-cast martensitic matrix structure.

High Chromium Cast Iron: Part One. Abstract: High chromium cast irons (HCCI’s) exhibit very good mechanical properties and offer benefits for a range of manufacturing applications. With carefully controlled heat treatment the cast iron properties can be further influenced to yield higher strength and ductility depending on the desired,

cast iron cast iron heat treatment cooled Prior art date 1965-06-17 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US556759A Inventor Greenwood Roger Kearsley,

heat treatments on the microstructure of high-chromium cast iron: A microscopy examination approach. J Mater Eng Perform 18(8): 1078 -1085. 6. Efremenko V, Shimizu K, Chabak Y (2013) Effect of destabilizing heat treatment on solid-state phase transformation in high-chromium cast irons. Metall Mater Trans A 44: 5434-5446. 7.

The invention relates to a method of heat treating a cast iron having graphite particles, in particular a cast iron having graphite nodules with a substantially spherical geometry. The method comprises the step of subjecting the cast iron to a first austenitizing temperature, in order to obtain a cast iron having an austenite matrix with a substantially homogeneous carbon

A casting of a hypereutectic white iron that, in an as-cast form of the casting, has a microstructure that includes a ferrous matrix that contains 12-20 wt. % chromium in solution in the matrix, eutectic chromium carbides dispersed in the matrix, primary chromium carbides dispersed in the matrix, and optionally secondary carbides dispersed in the matrix.

Heat Treatment High Cr Cast Irons Patent. Heat Treatment High Cr Cast Irons Patent As a leading global manufacturer of crushing equipment milling equipmentdressing equipmentdrying equipment and briquette equipment etc we offer advanced rational solutions for any sizereduction requirements including quarry aggregate grinding production and complete plant plan

Heat Treatment of Grey Irons Cast Irons Metallurgy. If the CEV of unalloyed grey iron is low (327337), the ascast strength and hardness is high (case 1 in Table 1510); Normalising (heat at 900°C for 1½ hr, aircool) almost restores these properties; but the unalloyed cast iron with high CEV and low Mn%, not only has low ascast tensile Strength and hardness, but normalising

Wear resistance of high Cr white cast irons can be improved by means of heat treatment. This type of cast iron alloy may present a microstructure with retained austenite. The amount of retained austenite changes with the applied heat treatment, which will have an influence on wear properties. The purpose of this work was to study the influence of several parameters such as

High Chromium Cast Iron: Part One. Abstract: High chromium cast irons (HCCI’s) exhibit very good mechanical properties and offer benefits for a range of manufacturing applications. With carefully controlled heat treatment the cast iron properties can be further influenced to yield higher strength and ductility depending on the desired,

1. High chromium white cast iron has different matrix structures in different treatment states. There are austenite in casting state, pearlite in annealing state, martensite in quenching state, and tempered martensite in tempering state. All of them contain (Fe,Cr) 7 C 3 type eutectic carbide.

24-06-2005· Semi-solid processed 18% Cr and 27% Cr cast irons were produced by using copper cooling plate and metal mold. A series of experiments were carried out to clarify the effect of heat treatment on microstructure, hardness, wear properties, and corrosion characteristics. The results show that 27% Cr alloys possess better abrasive resistance than 18,