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US4488711A - Treating Ladle For Ductile Iron Treatment
EP2251443A1 - Treatment ladle - Google Patents

The treatment ladle is designed for the treatment of molten metal with vaporisable additives, in particular in the preparation of ductile iron. The invention also relates to a method of treating molten metal employing the ladle.

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DUCTILE IRON FOUNDARY PRACTICE - SlideShare

Aug 31, 2016· Austempered Ductile Iron (ADI) Austempered ductile iron is obtained by heat treating the ductile iron in salt bath of sodium chloride, potassium chloride and barium chloride at the temperature of 830C. It was austempered at 350 - 420oC and later salt bath using sodium nitrate and potassium nitrate. ADI nominally has the chemical composition Fe ...

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Processing Techniques and Productions of Ductile Iron: A ...

lave/pressure ladle, treatment converter, cored wire, open ladle, sandwich, tundish, porous plug, inmould, and flow- - through. This review reports the extensive production process of these techniques and the applications of ductile cast iron. 2 P. RODUCION OF . D. UCTILE . I. RON. Ductile iron is made by the treatment of molten iron with no-

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Ductile Iron Data - Section 3 - Part 1

Annealing, normalizing and other Ductile Iron heat treatments are discussed in Section VII. Figure 3.15 shows the correlation between tensile properties, hardness and pearlite content in as-cast 1 inch (25 mm) keel blocks. The pearlite content was varied from 15 to 100 per cent by the use of different copper-manganese and tin-manganese ...

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The PQ-DIT process. Improving Ductile Iron production ...

The PQ-DIT process. Improving Ductile Iron production using ultra-low additions of magnesium. Rudolf Sillén Techn. Director, NovaCast AB Introduction: Almost every foundry that uses batch type treatments to produce ductile iron adds a constant amount of magnesium to each ladle. The amount of …

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WO2004022791A1 - Method for production of ductile iron ...

The present invention relates to a method for nodularizing treatment of ductile iron using a ladle treatment method for nodularizing of a magnesium ferrosilicon alloy, where a magnesium ferrosilicon nodularizing alloy consisting essentially of 40 to 80% by weight of silicon, 2 to 15 % by weight of magnesium, 0,3 to 5 % by weight of lanthanum, 0 to 6 % by weight of calcium, 0 to 5 % by weight ...

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Ductile Iron Data - Section 3 - Part 2

The use of adequate fillet radii, shot peening, surface rolling, flame and induction hardening and nitriding can significantly increase the fatigue limit of Ductile Iron components. These treatments, which will be discussed in more detail in Section IX, enhance fatigue resistance by 20 to 100 per cent by increasing the tensile strength and ...

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Teknik Pengecoran Logam: Ductile Iron Treatment ...

Good quality ductile iron as measured in the pouring ladle can still be damaged during the mold filling process. If the pouring stream is fragmented, especially if stopper rod and nozzles are used, the separated streams cool fast and the iron temperature can …

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Modern Cored Wire Injection 2PE-9 Method in the Production ...

treatment with cored wire injection method is its cost in comparison to other ones. 2. Experimental procedure Although, since years is said in literature of the subject that ductile iron castings must be produced with use of vertical treatment ladle this experiment tried to proved that drum ladle can

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THE INFLUENCE OF FOUNDRY VARIABLES ... - Ductile Iron …

of ductile iron are affected by the pearlite and carbide contents of the matrix. The volume, number, and ... Metal Treatment The magnesium treating processes included; plung- ing, sandwich treatment and lnmold treatment with a ... mold treatment with ladle and sprue postinoculation.

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Pouring Concept Extends Hold Times for Treated Ductile Iron.

May 01, 2001· The iron is melted in a hot-blast, water-walled cupola. The S level in cupola iron usually is too high for most treatment processes for ductile base iron and is lowered via a desulfurizing ladle. However, direct treatment of cupola-melted iron at 0.07% Scan be accomplished in a converter.

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Ductile iron - ScienceDirect

Jan 01, 2000· Chapter 6 Ductile iron Production of ductile iron Ductile iron, also known as spheroidal graphite (s.g.) iron or nodular iron, is made by treating liquid iron of suitable composition with magnesium before casting. This promotes the precipitation of graphite in the form of discrete nodules instead of interconnected flakes (Fig. 2.4).

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EFFECT OF HEAT TREATMENT ON MECHANICAL PROPERTIES …

Production of Ductile Iron • Ductile iron can be produced by treating low sulphur liquid cast iron with an additive usually containing magnesium and then inoculated just before or during casting with a silicon-containing alloy. Raw Material • To produce ductile iron with the best combination of strength and

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Process Ladles – TeeMark Manufacturing, Inc.

As the ladle fills, this Mg is stirred back into the bath. Alternative to Emission Control Under good process controls, the magnesium oxide emissions from our Tight Cover ladles is less than 5% of that of an open ladle. The ladle has been accepted in a number of states as an alternative to dust collection in the treatment of ductile iron.

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Magnesium treatment in ductile iron production - Part 1

The treatment of magnesiun (Mg) with molten iron to produce ductile iron is discussed. During treatment of molten iron, graphite changes from a flake to a nodule.

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A New Method for Chill and Shrinkage Control in Ladle ...

The present paper is undertaken with the objective of describing a new method for treating ductile cast iron in a ladle process, where the main objective is to minimize formation of eutectic ...

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How To Make Good Ductile Iron Using MgFeSi In An …

•To make good ductile iron you should use as little Mg as possible. •Ladle treatment and MgFeSi: •is a cost efficient, simple and flexible solution for making ductile iron. •can be adjusted to fit your needs. •offer many options for process improvements. •can be moved close to pouring.

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Div. of TeeMark Mfg.

DUCTILE IRON TREATMENT LADLES THE D&E TIGHTCOVER ™ MARK IV Ladle offers big savings and improved product quality over other methods of treating ductile iron. REDUCED ALLOY COST: In an open ladle, up to 70% of the magnesium present in the alloy is lost into the atmosphere in a great cloud of magnesium oxide vapor.

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Treating Oxidation to Reduce Iron Casting Scrap ...

DeOX metal treatment is the only process and/or material that neutralizes iron oxide in the raceway, and it effectively eliminates iron oxide throughout the cupola. Harmful levels of iron oxide — Iron oxide levels in cupola and electric furnace slags vary from over 50% all the way down to 0.2% FeO.

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Control of Slag and Insoluble Buildup in Ladles, Melting ...

Buildup is also a major problem in ductile iron treatment vessels utilizing pure magnesium and in the Flotret® process treatment chamber. The pressurized magnesium converter process is very susceptible to buildup constituents of magnesium oxide and sulfides. These are residual by-products of the treatment process. Similarly, rare earth

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Redux(patent pending) EF40 L Flux - ASI

Case Study: Treatment Ladle Build-Up from Ductile Iron Views of the second and third Redux EF40L flux treatments with individual wash heats. Each heat used 0.43 Kg(1lb) of ... treat the iron with magnesium units, only to test the flux out in the cleaning the ladle. The results speak for themselves. Whether the Redux EF40 is used in the

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Recent development of ductile cast iron production ...

design of small thin-wall ductile iron casting, is particularly important. 1.2 As-cast pearlite ductile iron Pearlite ductile iron is widely used in the mechanical manufacturing industry, due to its various advantages, such as the higher strength, hardness and better toughness. As-cast pearlite ductile iron can be directly prepared by adding the

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US4488711A - Treating ladle for ductile iron treatment ...

A treating ladle for use in a foundry in the production of ductile iron is disclosed wherein the treating ladle has a removable bottom portion and a detachably connected ladle carrier. The ladle carrier includes a bail carrier adapted for connection to a hoist and a retaining ring pivotally connected to the bail carrier to support the treating ladle for a tipping motion for emptying the ...

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Study of microstructure of thick wall ductile iron castings

The use of ductile iron casting (DI) has been increasing constantly all over the world. ... Three melts of spheroidal graphite iron were produced using the tundish tea pot ladle treatment Journal of Metallurgy and Materials Science, Vol. 53, No. 2, April-June 2011, pp. 133-137 ... used for post inoculation by treating with open ladle and ar gon ...

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Ductile Iron Casting Foundry; Low to High Volume Casting ...

We control the metallurgy in the furnace, in each ladle, in each casting and check the castings before they leave our Ductile Iron Foundry. For over 40 years we have checked and assured the nodularity in every ladle of Ductile Iron. We would like to be your ductile iron casting supplier. Come find out why so many companies come to us.

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Foseco Ferrous Foundryman's Handbook | ScienceDirect

Ductile iron production now accounts for about 40% of all iron castings and is still growing. The base iron type typically has high carbon equivalent value (CEV) and very low sulfur. Sufficient magnesium is added to the liquid iron to give a residual magnesium content of about 0.04%; the iron is …

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Magnesium treatments in ductile iron production - Part 2

The article discusses the use of open ladle process in ductile iron production. With this method, the measured quantity of treatment alloy, sometimes mixed with inoculant, is placed at the bottom ...

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CAST IRON INOCULATION ENHANCING BY OXY - SULPHIDES …

ductile iron [typically the upper limit] led to a medium level of P x factor [2.2-2.5], representing pearlitic irons, despite the low content of minor elements. As K < 1.0, the ductile iron chemistry favours nodular graphite formation in Mg-treated irons, without any rare earth elements addition. [1, 26, 27]

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Treating ladle for ductile iron treatment - Sperry Corporation

Dec 18, 1984· A treating ladle for use in a foundry in the production of ductile iron by the treating of molten base iron with a treatment alloy, comprising: a body member including a generally vertical outer shell, said body member having an upper portion, a lower portion below said upper portion and an opening therethrough extending from said upper portion ...

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Foundry Ladles | Del Sol Industrial Services, Inc.

Over the years, treating Ductile Iron has changed dramatically. Cost of raw material has had the greatest effect on these changes. All foundries are looking for ways to reduce the Mg usage. Covered treatment ladles offer several cost savings in the treatment process. Not requiring cover steel reduces the tap temperature.

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RU2530922C2 - Ladle for treatment - Google Patents

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, in particular to the design of a ladle for magnesium treatment of molten metal. The ladle contains a bowl with tubular refractory lining and with a spout for collecting and pouring of molten metal. Between the first and second end faces and continuous lateral wall of the lining the internal space of the ladle is formed.

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CA2760249C - Treatment ladle - Google Patents

The treatment ladle is designed for the treatment of molten metal with vaporisable additives, in particular in the preparation of ductile iron. The invention also relates to a method of treating molten metal employing the ladle.

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Treatment Ladles for the Production of Ductile (S.G.) Iron ...

Any ladle can be used to make S.G. (Ductile) iron but the small investment in buying a ladle that is specifically designed for the in-ladle treatment process will soon pay for …

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Method of and tiltable ladle for the treatment of cast ...

Aug 02, 1983· The treatment of a cast iron utilizing this ladle is identical to the treatment described with the ladle of FIGS. 1, 1A and 2. The mode of operation of the apparatus is likewise unique and hence the invention also involves a method of treating a cast iron melt with a substance inducing the formation of spheroidal graphite, this method ...

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Analysis of quality and cost of FeSiMg treatment master ...

content in cast iron of 0.04-0.05% Mg for nodular graphite) and 0.015-0.02% for vermicular graphite (see in Fig. 2); c) it ensures safe work conditions in foundry (no dust and metal “splashes” from the treatment ladle); d) it enables production of ductile iron from the cupola-melted metal which, compared with the iron melted in electric

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RH-47 Hot metal Treating Agent

Reduction of slag build-up in ladles or treatment chambers greatly extending ladle life . Application: Ductile Iron. The addition rate of 0.1% of melt is recommended, RH-47 should be put in the ladle with the ductile iron treating agent (i.e MgFeSi). As an added savings, an equal amount of MgFeSi can be removed from the treatment. Application ...

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