CN1055506C - Use of low titanium ferro-silicon in cast iron - Google Patents
Use of low titanium ferro-silicon in cast iron Download PDFInfo
- Publication number
- CN1055506C CN1055506C CN97114404A CN97114404A CN1055506C CN 1055506 C CN1055506 C CN 1055506C CN 97114404 A CN97114404 A CN 97114404A CN 97114404 A CN97114404 A CN 97114404A CN 1055506 C CN1055506 C CN 1055506C
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- China
- Prior art keywords
- silicon
- low titanium
- titanium ferro
- application
- amount
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- 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.)
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The present invention relates to a method for treating molten iron alloy, which comprises the steps that low-titanium silicon iron as a granular or blocky byproduct (or scrap) for producing brown corundum is added in front of or behind a furnace and is directly used for treating cast iron so as to improve the mechanical property, the wear resistant property, the heat resistant property, the corrosion resistant property, etc. of the cast iron, and the product cost is reduced.
Description
The present invention relates to the processing of fusion iron class alloy.
Byproduct low titanium ferro-silicon during the palm fibre corundum is produced owing to wherein contain titanium elements, so be called low titanium ferro-silicon, initial people are used as rubbish and discharge, and sneak into the melting pig iron in the blast furnace raw material afterwards, also have human it as one of raw material smelting duriron.Even to this day nobody finds the reasonable usage of low titanium ferro-silicon, and these above-mentioned usages exist serious defective, at first is the iron of having smelted to be sent to blast furnace as iron-smelting raw material refine the pig iron again, wastes energy; Next is wherein to contain trace amount of titanium element major part in blast furnace to be fallen by scaling loss, and promptly this element is quite valuable in Special Casting Iron; See again, in the regular pig as contain a spot of titanium and used, will cause damage, such as in order to produce spheroidal graphite cast iron in some occasion as the not titaniferous pig iron.
The objective of the invention is to be to avoid the byproduct low titanium ferro-silicon in the brown corundum production is smelted the waste to the energy and useful element that causes once more, and be that it finds rational purposes, make and make the best use of everything.
Technical scheme of the present invention be a kind of byproduct low titanium ferro-silicon during brown corundum is produced when producing cast iron as Application of Additives, it is characterized in that this low titanium ferro-silicon is broken into block or granular, be directly used in iron casting in company with the metal charge adding, be used for improving cast properties.
When utilizing the titanium element silicon to improve the cast iron physical and chemical performance, this low titanium ferro-silicon of bulk is added behind stove; And when eliminating molten iron oxidized and deoxidation or inoculated cast iron, will granular this low titanium ferro-silicon stokehold adding.
Adopt the present invention not only to overcome to repeat to smelt the waste that the energy and useful element are caused that causes, eliminate the failure that some cast iron of misuse causes, and can be with cheap cost production Special Casting Iron---wear-resisting, heat-resisting, acid proof cast iron.
Embodiment 1: for the machinability that improves cast iron and mechanical property can add byproduct low titanium ferro-silicon in the block brown corundum production as additive behind stove, add-on is 3～7%, add and to see that graphite attenuated in the structure of cast iron at 3% o'clock, spoken parts in traditional operas is eliminated, perlite increases, the gas cinder hole reduces, thereby good machinability and mechanical property are arranged.
Embodiment 2: when making wear resistance castings, can add the byproduct low titanium ferro-silicon of block brown corundum in producing as additive, add-on is 4～10%, adds with antimony behind stove.In the car brake facing that adding 8% this low titanium ferro-silicon is produced, can see that the graphite number increases, perlite increases, structure refinement, thermal fatigue resistance, the wear resisting property of part have all improved, thereby improve work-ing life.
Embodiment 3: when producing high trade mark cast iron, the stokehold adds byproduct low titanium ferro-silicon 0.5～1.5% inoculation of granular brown corundum in producing, and adds block this low titanium ferro-silicon 4～8% behind the stove.
Embodiment 4: when producing silicon and being heat resisting iron, add the byproduct low titanium ferro-silicon 20～35% of block brown corundum in producing behind the stove as additive.
Embodiment 5: when producing high silicon corrosiron, add the byproduct low titanium ferro-silicon 90～100% of block brown corundum in producing in the electric furnace, according to the different trades mark, and mend simultaneously and increase silicon and other metallic element.
Embodiment 6: when eliminating the oxidized deoxidation of molten iron, the stokehold adds the byproduct low titanium ferro-silicon 0.5～1.2% of granular brown corundum in producing as additive.
Claims (7)
1, the byproduct low titanium ferro-silicon during brown corundum is produced when producing cast iron as Application of Additives, it is characterized in that: this low titanium ferro-silicon is broken into block or granularly adds in company with metal charge, be directly used in casting, be used for improving the performance of foundry goods and reduce casting cost.
2, Application of Additives according to claim 1 is characterized in that: should the bulk low titanium ferro-silicon add after with 3～7% amount stove, with machining and the mechanical property of improving foundry goods.
3, Application of Additives according to claim 1 is characterized in that: should the bulk low titanium ferro-silicon add simultaneously with antimony after with 4～10% amount stove, to increase the foundry goods wear resistance.
4, Application of Additives according to claim 1 is characterized in that: will this granular low titanium ferro-silicon add with 0.5～1.5% amount stokehold, and should the bulk low titanium ferro-silicon add to produce high trade mark cast iron after with 4～8% amount stove.
5, Application of Additives according to claim 1 is characterized in that: should the bulk low titanium ferro-silicon add after with 20～35% amount stove, to increase the cast iron thermotolerance.
6, Application of Additives according to claim 1 is characterized in that: should the bulk low titanium ferro-silicon to add in 90～100% the amount electric furnace, to increase casting corrosion resistant.
7, Application of Additives according to claim 1 is characterized in that: will this granular low titanium ferro-silicon add with 0.5～1.2% amount stokehold, to eliminate molten iron oxidation and spoken parts in traditional operas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97114404A CN1055506C (en) | 1997-07-07 | 1997-07-07 | Use of low titanium ferro-silicon in cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97114404A CN1055506C (en) | 1997-07-07 | 1997-07-07 | Use of low titanium ferro-silicon in cast iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1198476A CN1198476A (en) | 1998-11-11 |
| CN1055506C true CN1055506C (en) | 2000-08-16 |
Family
ID=5172923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97114404A Expired - Fee Related CN1055506C (en) | 1997-07-07 | 1997-07-07 | Use of low titanium ferro-silicon in cast iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055506C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0100869A1 (en) * | 1982-07-19 | 1984-02-22 | Hoechst Aktiengesellschaft | Method of lowering the titanium and aluminium content of block iron |
-
1997
- 1997-07-07 CN CN97114404A patent/CN1055506C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0100869A1 (en) * | 1982-07-19 | 1984-02-22 | Hoechst Aktiengesellschaft | Method of lowering the titanium and aluminium content of block iron |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1198476A (en) | 1998-11-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |