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PDF Effect of Crucible Material for Ingot Casting on

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US720374A - Process of casting crucible-steel ingots

US720374A US10866402A US1902108664A US720374A US 720374 A US720374 A US 720374A US 10866402 A US10866402 A US 10866402A US 1902108664 A US1902108664 A US 1902108664A US 720374 A US720374 A US 720374A Authority US United States Prior art keywords steel casting mold crucible ingot Prior art date 1902-05-23 Legal status (The legal status is an assumption and is not aUS20130247618A1 - Continuous casting method of silicon Provided is a continuous casting method of a silicon ingot for continuously casting the silicon ingot by arranging,inside an induction coil,a bottomless cold crucible having a part along an axial direction that is circumferentially divided into a plurality of strip elements,forming molten silicon inside the cold crucible through electromagnetic induction heating by the induction coil,and Transition metals in photovoltaic-grade ingot-cast contained within any of the crucible parts,then contam-ination of the melt or of the cooling ingot may occur,as suggested by previous studies (e.g.,Refs.[611]).2.Materials and methods Two types of material were analyzed in this study (a) a-Si 3N 4 powder,and (b) as-grown mc-Si wafers produced from cast ingots.Samples of a-Si 3N

The melting and holding furnace for aluminium casting.

Application material Ingots,returns from production,processed chips (KombiMelter option for chip recycling),T-bars and sows (option ramp feed) Metal yield Up to 99.7 % with 80 % ingots and 20 % returns Up to 99 % with 50 % ingots and 50 % returns UpThe effect of sintering temperature of Si 3 N 4 Jul 24,2020 PDF Effect of Crucible Material for Ingot Casting on#0183;Multicrystalline silicon is widely used in solar cell production.Silicon nitride is commonly applied as a coating material for the silica crucibles utilized for the growth of multicrystalline silicon by directional solidification.In this work,we will study the effect of the sintering temperature of the Si3N4 coating applied to the photovoltaic solar crucible on the adhesion strength of the The effect of electromagnetic stirring during The purpose of this work is the experimental study of the effect of electromagnetic stirring during solidification on the structure of copper alloys,and his effect on reducing the crystal size.

The Effect of Direct Thermal Method,Temperature

The Effect of Direct Thermal Method,Temperature and Time on Microstructure of a Cast Aluminium Alloy A.H.AHMAD1,2,3,S.NAHER1,2,4*,and D.BRABAZON1,2 A 1kg aluminium A356 ingot was placed in a graphite crucible and was heated to a temperature 720 PDF Effect of Crucible Material for Ingot Casting on#176;C usingThe Effect of Copper Addition on the Mechanical andMay 27,2014 PDF Effect of Crucible Material for Ingot Casting on#0183;sidered [18]-[21].In this work,the effects of copper additions on wear and mechanical properties of grey cast iron were studied.The work was also aimed to enhance the toughness of the grey cast iron.2.Material and Methodology A grey cast iron classified as NFGrey (8) used was sourced from Nigerian Foundries,Ilupeju Lagos.The com-Some results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456Next

Silicon nitride coating and crucibleeffects of using

These varied in a systematic way,so that the materials cast in the pure environment had significantly higher values than the materials cast with conventional coating and crucible materials.The maximum values for the lifetimes in the individual ingots varied from 7 to 135 PDF Effect of Crucible Material for Ingot Casting on#181;s.Silicon nitride coating and crucibleeffects of using These varied in a systematic way,so that the materials cast in the pure environment had significantly higher values than the materials cast with conventional coating and crucible materials.The maximum values for the lifetimes in the individual ingots varied from 7 to 135 PDF Effect of Crucible Material for Ingot Casting on#181;s.Silicon nitride coating and Crucible - Effects of using PDF Effect of Crucible Material for Ingot Casting on#0183;Translate this pageRequest PDF Silicon nitride coating and Crucible - Effects of using upgraded materials in the casting of multicrystalline silicon ingots A method for removal of metallic contaminants from

STEEL CASTINGS HANDBOOK

engineers and the foundrys casting engineers is essential,to optimize the casting design,in terms of cost and performance.Additional guidelines for casting design are given in Steel Castings Handbook and Supplement 1,3,and 4 of the Steel Castings Handbook.Minimum Section ThicknessREPORT on STEEL INGOT CASTING INDUSTRY SURVEYMar 07,2003 PDF Effect of Crucible Material for Ingot Casting on#0183;3.Ingot Casting / Mold Filling All of the teeming process is by bottom pouring.The ingot size for this cleanliness study was recommended to be 13,700 lbs weight,28 square section,and 63 height.No company reported ingot taper,but ingot taper affects fluid flow pattern and inclusion motion,thus has effect on entrapment of inclusions.REPORT on STEEL INGOT CASTING INDUSTRY SURVEY PDF Effect of Crucible Material for Ingot Casting on#0183;The moulds used for casting of ingots are made of cast iron.Cast iron is used for the production of the mould since the thermal coefficient of cast iron is lower than that of steel.Because of this property of cast iron,liquid steel on solidification contracts more than cast iron which makes detachment of ingot easier from the mould.

Nitride bonded silicon nitride as a reusable crucible

Sep 10,2015 PDF Effect of Crucible Material for Ingot Casting on#0183;Nitride bonded silicon nitride (NBSN) has the potential of a reusable crucible material for directional solidification of silicon.This is demonstrated in this work by reusing a NBSN crucible six times for the directional solidification of undoped multicrystalline (mc) silicon ingots.Ingot Casting Manufacture - Manufacturing ProcessIngot casting manufacture is a more time consuming process since it requires large molds to sit and solidify.Ingot manufacture,however,can produce very large raw form castings,and requires much less manufacturing complication than continuous casting.Ingots are commonly round,square,orGraphite Crucible - Cylindrical - Premium Crucibles byGraphite Crucible Ingot Bar Combo Mold For Silver Gold Melting Casting.Graphite Indicator The bulk density is more than or equal to 1.82 g/cm3.The Electric resistivity is more than or equal to 9 m.The Bending strength is more than or equal to Mpa.The resist compression is more than or equal to 65 Mpa.Ash is more than or equal to 0.1 %.

Fuel Cycle Research and Development

Casting Excellent performance of commercially-available Y2O3 coating Salt species are already removed,so less complicated environment If they are not,Y2O3 coating will be penetrated,with resulting high carbon content in ingot and potential crucible destruction upon ingot removal Low losses and ease of use of Y2O3 coating haveEnhanced Material Quality in SMART mono-Si Blockcast-mono growth processes are the unwanted ingrowth of parasitic grains from the crucible into the ingot volume and the introduction of dislocations originating at mainly the seed joints.The SMART technology for cast-mono silicon ingots using functional defects for blocking parasitic grains as well as dislocatioreducingn generation has beenElectrical resistivity distribution of silicon ingot grown Jul 01,2014 PDF Effect of Crucible Material for Ingot Casting on#0183;The raw material is metallurgical grade silicon,and its chemical composition is shown in Table 1.The cross section of the cast ingot is 60 mm PDF Effect of Crucible Material for Ingot Casting on#215;60 mm,and its length is approximately 120 mm.The ingot was cut in the middle along the pulling axis and

Effect of the Silicon Nitride Coating of Quartz Crucible

Request PDF Effect of the Silicon Nitride Coating of Quartz Crucible on Impurity Distribution in Ingot-Cast Multicrystalline Silicon Multicrystalline silicon ingots were fabricated via the Effect of the Silicon Nitride Coating of Quartz Crucible Aug 27,2012 PDF Effect of Crucible Material for Ingot Casting on#0183;Multicrystalline silicon ingots were fabricated via the directional solidification method in a vacuum induction furnace using silicon nitride (Si 3 N 4) as quartz crucible coating.The effect of Si 3 N 4 coating on the impurity content,transference,and distribution in Si ingots was investigated.The results can be summarized as follows The impurities contained in Si ingots,including Fe,Ca Effect of Crucible Material for Ingot Casting on Crucible material Mean holding temperature [ C] (Celox sensor) Holding time [h] Soluted O [ppm] (Celox sensor) AC 1620 0.5[a] 39 AZTC 1587 1 30 AZTCn 1585 1 28 [a] The test was stopped after 0.5h due to failure of the temperature sensor.S.Henschel et al./Effect of Crucible Material for Ingot Casting

Effect Of Gases On Metal Casting

Gases may be trapped from material or the atmosphere in the crucible when the melt is being prepared.Gases may be trapped from reactions between the molten metal and the mold material.Since liquid metal has a much higher solubility than solid metal,as the casting solidifies these gases are expelled.EFFECT OF CASTING MOULD ON MECHANICALEffect of Casting Mould on Mechanical Properties of 6063 Aluminum Alloy 91 Journal of Engineering Science and Technology February 2012,Vol.7(1) The moulds for casting test samples were made from CO 2,cement,naturally- bonded sand and metal (hardened steel) moulds.Crystal Growth of Si Ingots for Solar Cells Using Cast Dec 10,2020 PDF Effect of Crucible Material for Ingot Casting on#0183;The mono-like cast method uses large silicon single crystals to initiate growth of the ingot,producing much larger and more oriented crystals.In the noncontact crucible (NOC) method,the ingot is removed from the melt before freezing occurs at the crucible

Cited by 6Publish Year 2017Author Sebastian Henschel,Johannes Gleinig,Tim Lippmann,Steffen Dudczig,Christos G.Aneziris,Horst BieEffect of Crucible Material for Ingot Casting on

May 24,2017 PDF Effect of Crucible Material for Ingot Casting on#0183;The present paper focusses on the effect of different carbonbonded crucible materials for ingot casting on size and distribution of nonmetallic inclusions and their influence on the mechanical behavior of a casehardening steel 18CrNiMo76 (AISI 4317).Cited by 6Publish Year 2017Author Sebastian Henschel,Johannes Gleinig,Tim Lippmann,Steffen Dudczig,Christos G.Aneziris,Horst BieEffect of Crucible Material for Ingot Casting on May 24,2017 PDF Effect of Crucible Material for Ingot Casting on#0183;Effect of Crucible Material for Ingot Casting on Detrimental NonMetallic Inclusions and the Resulting Mechanical Properties of 18CrNiMo76 Steel Cited by 6Publish Year 2017Author Sebastian Henschel,Johannes Gleinig,Tim Lippmann,Steffen Dudczig,Christos G.Aneziris,Horst Bie(PDF) The Effect of Crucible Coating and the Temperature The Effect of Crucible Coating and the Temperature Field on Minority Carrier Lifetime in Directionally Solidified Multicrystalline Silicon Ingots January 2012 DOI 10.4229/27thEUPVSEC2012-2AV.4.2

Cited by 1Publish Year 1902Author James F McgrathA review on crucibles for induction melting of titanium

Jan 15,2020 PDF Effect of Crucible Material for Ingot Casting on#0183;A summary of the performances of different crucible materials used to melt TiAl alloys is shown in Table 1.The table shows that much research has been performed on crucible materials for induction melting of -TiAl alloys and this is due to their attractive properties,coupled with less aggressiveness of the melt.CN103361722B - Polycrystal silicon ingot and preparation The invention provides the preparation method of polycrystal silicon ingot,comprise the following steps before or after crucible internal walls spraying silicon nitride layer,the inside sidewalls of described crucible arranges barrier layer,described barrier layer is silica flour coating or silica powder coating or silica flour and silica powder mixed coating,and the purity of described CN102296354B - Ingot casting method for silicon material The invention relates to an ingot casting method for a silicon material.The method comprises the following steps of preparing materials,namely preparing materials according to the weight ratio of metallurgical grade silicon to solar grade silicon of 4:8,wherein the solar grade silicon contains a finely ground silicon material in an amount which is 2 to 5 percent of the total weight

CN101988214A - Preparation method of fused silica crucible

The invention discloses a preparation method of a fused silica crucible for polycrystalline silicon ingot casting,comprising the steps of firstly carrying out wet-process ball-milling granulation on a high-purity fused silica raw material,then injecting into a plaster mould,standing,demoulding,drying and sintering to obtain the fused silica crucible.Backyard Metal Casting Setup Information ~ Metal casting This metal crucible is excellent for backyard metal casting,I have used it many times and it works perfect in combination with the crucible tools.The next thing I needed is a good and functional ingot tray.Since I am using bigger crucible I am using more aluminum and the muffin tray that I used before is a bit small at this stage.Author Publish Year 2010Ingots - an overview ScienceDirect TopicsHiroyuki Kageyama,in Novel Materials Processing by Advanced Electromagnetic Energy Sources,2005.2.EXPERIMENT.Nd 4 Fe 77.5 B 185 alloy ingots were prepared by arc melting in an argon atmosphere.Small amounts of the alloy ingots were melt-spun in argon onto a copper wheel rotating at a surface velocity of 50 m/s.

Aluminum and Aluminum Alloys Casting Problems

Coreless and channel induction furnaces,crucible and open-hearth reverberatory furnaces fired by natural gas or fuel oil,and electric resistance and electric radiation furnaces are all in routine use.The nature of the furnace charge is as varied and important as the choice of furnace type for metal casting12345Next(PDF) Chemical bulk properties of multicrystalline silicon Effect of oxidation level of the Si3N4 coating layer during melting of the Si charge,other negative effects have to be A major advantage of the Si3N4 crucible over the standard SiO2 taken into account,namely (i) the longer solidication time and crucible is the possibility to cast ingots with very low oxygen (ii) the higher crucible and (PDF) Thermomechanical analysis of the ingot-crucible Fracture at the coating material puted radial displacement eld and ingot and crucible (magnied) occurs when the local normal stress,sn,or the shear stress,t,at the deformations for this case at the end of the crystallisation phase surface exceed the materials tensile or shear strength sc or tc,(7.5 h) and at the end of the process

(PDF) Nucleated casting for the production of large

Industrial Insight High-Risk Technologies Nucleated Casting for the Production of Large Superalloy Ingots William T.Carter,Jr.,and Robin M.Forbes Jones The gas turbine industry is continu- Alloy 706 was replaced with Alloy 718 replacement for triple-melt would be ously driven to achieve higher thermo- as the wheel alloy.(PDF) Effect of process parameters on grain structure Effect of melt rateMelt rate,the mass transferred from the electrode to the ingot per unit time,is one of the most important parameters in industrial practice.Changing the melt rate affects the grain structure of the VAR ingot [11] as well as the shape and depth of the melt pool,influencing the formation of freckles and white spots [19].(PDF) Effect of process parameters on grain structure Effect of melt rateMelt rate,the mass transferred from the electrode to the ingot per unit time,is one of the most important parameters in industrial practice.Changing the melt rate affects the grain structure of the VAR ingot [11] as well as the shape and depth of the melt pool,influencing the formation of freckles and white spots [19].

(PDF) Effect of Crucible Material for Ingot Casting on

Effect of Crucible Material for Ingot Casting on Detrimental Non-Metallic Inclusions and the Resulting Mechanical Properties of 18CrNiMo7-6 Steel May 2017 Advanced Engineering Materials 19(9)(PDF) EFFECTS OF AGING TIME ON MECHANICALEXPERIMENTAL PROCEDURE Material PreparationAluminium alloy (Al-4.5Cu) castings were produced by melting commercially available pure aluminium ingots and electrolytic copper rods.The appropriate weight percent of the elements were melted in a graphite crucible using an electric furnace in an inert argon atmosphere.(PDF) Chemical bulk properties of multicrystalline silicon Effect of oxidation level of the Si3N4 coating layer during melting of the Si charge,other negative effects have to be A major advantage of the Si3N4 crucible over the standard SiO2 taken into account,namely (i) the longer solidication time and crucible is the possibility to cast ingots with very low oxygen (ii) the higher crucible and

MODELING OF VACUUM ARC REMELTING OF ALLOY

The heat from the arc melts the electrode and molten metal droplets from the electrode solidify in the crucible to form an ingot.The purpose of VAR is to cast a sound,segregation free ingot.The soundness of the final structure and tendency for defect formation are determined by the pool profile and ingot solidification patterns during the MODELING OF VACUUM ARC REMELTING OF ALLOY 718 INGOTS The heat from the arc melts the electrode and molten metal droplets from the electrode solidify in the crucible to form an ingot.The purpose of VAR is to cast a sound,segregation free ingot.The soundness of the final structure and tendency for defect formation are determined by the pool profile and ingot solidification patterns during the

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