CN1034959A - Making process for si-ba alloy - Google Patents

Making process for si-ba alloy Download PDF

Info

Publication number
CN1034959A
CN1034959A CN 88108889 CN88108889A CN1034959A CN 1034959 A CN1034959 A CN 1034959A CN 88108889 CN88108889 CN 88108889 CN 88108889 A CN88108889 A CN 88108889A CN 1034959 A CN1034959 A CN 1034959A
Authority
CN
China
Prior art keywords
alloy
making
steel
power consumption
barite
Prior art date
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.)
Pending
Application number
CN 88108889
Other languages
Chinese (zh)
Inventor
尚绳林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DANDONG FERROALLOY FACTORY
Original Assignee
DANDONG FERROALLOY FACTORY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DANDONG FERROALLOY FACTORY filed Critical DANDONG FERROALLOY FACTORY
Priority to CN 88108889 priority Critical patent/CN1034959A/en
Publication of CN1034959A publication Critical patent/CN1034959A/en
Pending legal-status Critical Current

Links

Abstract

The production technique of the Si-Ba alloy of the reductor of a kind of nucleating agent that is used to cast or steel-making is characterized in that primary smelting goes out Si-Ba alloy in the hot stove in ore deposit, and its charge composition is:
Barite: 10-400kg silica: 500-600kg
Calcium carbide: 0-50kg Wingdale: 5-10kg
Steel cuttings: 65-85kg coke: 450-550kg
The present invention has little power consumption, the characteristics that reduce cost, (economizing on electricity about 40%)

Description

Making process for Si-Ba alloy
A kind of production technique of alloy is especially for the production technique of the nucleating agent or the reductor Si-Ba alloy of steel-making of casting.
Si-Ba alloy is the nucleating agent that is used to cast and the reductor of steel-making, do the formation that nucleating agent can promote A type graphite and make the eutectic cell refinement being used to cast, the distribution of graphite is improved, and the anti-ageing ability of moving back is strong, and can eliminate and prevent the chilling tendency of foundry goods, reduce sensitivity profile, when Si-Ba alloy is used for steel-making when making reductor, smokeless, sparkless, deoxidation effect is higher than silicocalcium, and can improve the form of non-metallic inclusion, improve the quality of steel.At present, produce Si-Ba alloy both at home and abroad, generally all adopt in the hot stove in ore deposit and produce ferrosilicon, again ferrosilicon and baric raw material are added in the intermediate frequency furnace.Smelt the power consumption height owing to produce product through two steps.The method that this patent of russian patent document US 935539 " being used to obtain the furnace charge of Si-Ba alloy " is produced Si-Ba alloy is that primary smelting goes out Si-Ba alloy in the hot stove in ore deposit.Main barite, silica, coke, steel cuttings, the silicon carbide of adopting in the stove.It is very big to smelt required power consumption, and one ton of Si-Ba alloy power consumption of every production is 14,000 degree.The present invention overcomes at present production Si-Ba alloy shortcoming both at home and abroad, and a kind of method of the interior single stage method production of stove Si-Ba alloy of low power consumption is provided.
The objective of the invention is to provides low power consumption, the production technique of best charge composition at the at present domestic and international high shortcoming of Si-Ba alloy power consumption.Adopt this method under the situation that need not improve equipment, to reduce the power consumption and the cost of Si-Ba alloy, so that extensively adopt Si-Ba alloy to make nucleating agent at foundry industry, replace 75% ferrosilicon to make nucleating agent, its economic benefit will be huge.
Production method main points of the present invention are: employing primary smelting in the hot stove in ore deposit goes out Si-Ba alloy, and this technology is to carry out on the basis that smelts 75% ferrosilicon.When producing this product, at first require original production 75% silicon furnace condition normal, aluminum content will be controlled at below 2%, and barite, Wingdale, calcium carbide are mixed in proportion, and puts respectively to the table place facing to three electrodes, mixes with 75% ferrosilicon material again.In tap a blast furnace within 1.5 hours (per 2 hours go out a stove iron) at every turn the above-mentioned furnace charge batch by batch and stage by stage that has mixed is added in the stove equably, and will when smelting, prevent the thorn fire.About brickwork, open, furnace stopping process, with 75% ferrosilicon technology.
Technical process: (1) mixes qualified coke, silica, steel cuttings, the back of checking the weight: (2) are fed to compound on the stove platform again: add in the electric furnace mix above-mentioned compound (3) with barite, Wingdale, radio station after and smelt: (4) are with the molten iron ingot casting of producing, and sampling analysis Chemical Composition: (5) are with qualified product finishing fragmentation, packing back warehouse-in, substandard product is smelted again.
Raw material is formed: barite 10-400 kilogram, silica 500-600 kilogram, calcium carbide 0-50 kilogram, coke 450-550 kilogram, steel cuttings 65-85 kilogram, Wingdale 5-10 kilogram.
Requirement to above-mentioned raw materials: the requirement of silica, coke, steel cuttings is identical with the ingredient requirement of smelting 75% ferrosilicon, and barite will contain BaSO 4Greater than 70%, granularity 40-60m/m, no earth, nothing is mingled with, and anti-knocking property are good, and Wingdale contains CaO greater than 51% granularity 30-40m/m, and calcium carbide contains CaC 2Greater than 70%, granularity 30-40m/m is efflorescence not, the Chemical Composition scope that adopts the present invention to smelt Si-Ba alloy: Ba:0-30%Si:0-70%, Ca:0-4%, Al: less than 2%.
The invention has the advantages that: need not increase under the situation of new installation, can in the hot stove in ore deposit, once produce Si-Ba alloy, the significant unit power consumption amount that reduces, be reduced to 8600 degree by power consumption 1.4 ten thousand degree per ton, product cost reduces significantly, adopt Si-Ba alloy to make nucleating agent, its add-on has only 1/3rd of 75% ferrosilicon, and raising casting quality, the intensity that solution causes because of wall thickness difference is big is uneven to be reached because the long difficult problems such as inoculation fade of being brought in production distribution restriction and pouring technology road are improved the quality of products.
Most preferred embodiment of the present invention adopts primary smelting to go out the Si-Ba alloy charge composition, best proportioning: 600 kilograms in silica, 400 kilograms in barite, 2 kilograms on calcium carbide, 500 kilograms in coke, 5 kilograms in Wingdale, 80 kilograms of steel cuttings.

Claims (1)

  1. A kind of method of producing Si-Ba alloy in the hot stove in ore deposit is characterized in that:
    A, in the hot stove in ore deposit the primary smelting Si-Ba alloy.
    B, charge composition: barite 10-400kg, silica 500-600kg, calcium carbide 0-50kg, coke 450-500kg, steel cuttings 65-85kg.
CN 88108889 1988-12-20 1988-12-20 Making process for si-ba alloy Pending CN1034959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88108889 CN1034959A (en) 1988-12-20 1988-12-20 Making process for si-ba alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88108889 CN1034959A (en) 1988-12-20 1988-12-20 Making process for si-ba alloy

Publications (1)

Publication Number Publication Date
CN1034959A true CN1034959A (en) 1989-08-23

Family

ID=4835228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88108889 Pending CN1034959A (en) 1988-12-20 1988-12-20 Making process for si-ba alloy

Country Status (1)

Country Link
CN (1) CN1034959A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318611C (en) * 2002-01-07 2007-05-30 张炼 Composite refiner for metallurgy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318611C (en) * 2002-01-07 2007-05-30 张炼 Composite refiner for metallurgy

Similar Documents

Publication Publication Date Title
CN101775508B (en) Production method of low-carbon ferromanganese
CN101469378B (en) Method for preparing alsifer from high-alumina fly ash and magnetic beads
CN1034959A (en) Making process for si-ba alloy
CN1071205A (en) The technology of preparation of rareearth ferro-silicon alloy by carbon thermal reduction to ore bearing O, C and Ce
CN109778056A (en) A kind of rare earth ferrosilicon alloy production technology for casting
EP0090452A1 (en) Process for producing steel in a converter from pig iron and ferrous scrap
US2020171A (en) Cast iron and the manufacture thereof
CN1718818A (en) Technology of producing low magnesium oxide rare earth calcium magnesium silicon iron alloy by thermo liquid joint production and thread feeding method
CN1043249C (en) Process for production of compound deoxidizer of Si-Al-Ba-Fe alloy in one-step in blast furnace
CN1201025C (en) Si-Al-Ba-Ca-B-Fe alloy for final deoxidation of molten steel and its preparation method
CN1128803A (en) Composite deoxidant Si-Al-Ba-Fe alloy prodn. method
CN1274862C (en) Technology for united producing rare earth calcium magnesium silicon iron alloy by mining hot furnace middle frequency induced electric furnace hot liquid
US2794731A (en) Method of reducing refining of cast irons and steels
CN109811151A (en) A kind of method of low power consumption One-step production rare earth aluminium alloy
CN1052901A (en) With alkaline-earth metal production NEW TYPE OF COMPOSITE deoxidant Si-Al-Ba-Fe alloy alloy
CN105018678B (en) A kind of steel desulfurization agent and its sulfur method and method for making steel
CN1257131A (en) Technology for producing rare earth barium silicide alloy by carbon thermal reduction method
SU1068498A1 (en) Charge for producing high-carbon metal
CN1034676C (en) Method for smelting silicon-aluminium alloy with ore in ore hearth
RU2223914C2 (en) Method for processing disthene-andalusite-sillimanite concentrate
CN1546693A (en) Smelt process for producing rare earth calcium magnesium silicon iron alloy containing little magnesium oxide using ore furnace
CN111910119A (en) High-toughness nodular cast iron and preparation method thereof
SU1715854A1 (en) Modifier for cast iron
CN1210426C (en) Process for producing rare earth magnesium-silicon-iron alloy in twin ore heating furnace and induction furnace and through pressurized magnesium addition
CN1082559C (en) Low-aluminium ferrosilicon containing strontium and its production process

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication