CN108315634A - A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron - Google Patents
A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron Download PDFInfo
- Publication number
- CN108315634A CN108315634A CN201810126241.9A CN201810126241A CN108315634A CN 108315634 A CN108315634 A CN 108315634A CN 201810126241 A CN201810126241 A CN 201810126241A CN 108315634 A CN108315634 A CN 108315634A
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- CN
- China
- Prior art keywords
- iron
- chromium
- silicon
- manganese
- pig iron
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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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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
- C21D5/04—Heat treatments of cast-iron of white cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The present invention relates to metal working technical area, especially a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron, chemical composition percentage is:Manganese 9% 11%, chromium 5% 8%, silicon 3% 5%, surplus is the pig iron;White cast-iron is made by specific proportioning with common materials such as manganese, chromium, silicon, the pig iron, steel scraps, air chill all occurs for structure of cast iron, and high frequency heat treatment is needed not move through in process, has many advantages, such as that surface strength height, inside and outside hardness are consistent;It is suitble to the component for rubbing for a long time such as production piston, piston rod and plunger.
Description
Technical field
The present invention relates to metal working technical area, especially a kind of side producing white cast-iron with manganese, chromium, silicon and the pig iron
Method.
Background technology
Its appearance of cast iron is generally iron black color or grey, and light tone coating is sprayed after polishing is needed after being cast as product,
However sprayed coating is not appropriate for due to often rubbing against for piston rod, plunger etc..Therefore it is naturally presented after a kind of casting of urgent need white
The cast iron of mouth state.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of production method of white cast-iron.
The technical scheme is that:
A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron, it is characterised in that:Its chemical composition percentage is:
Manganese 9%-11%, chromium 5%-8%, silicon 3%-5%, surplus are the pig iron.
A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron, is as follows:
By weight percentage, by manganese 9%-11%, chromium 5%-8%, silicon 3%-5%, surplus is that the pig iron carries out dispensing;
The pig iron is put into after being melted in induction furnace, carries out pre-deoxidation operation, ferrochrome, ferromanganese and ferrosilicon is then added, obtains
Molten iron;It takes molten iron sample to carry out on-the-spot sample analysis to be adjusted the molten iron to the requirement of qualified molten iron according to analysis result;By iron
Coolant-temperature gage is increased to 1550 DEG C~1600 DEG C, carries out final deoxidizing, comes out of the stove;When temperature is down to 1400 DEG C~1460 DEG C, start to pour
Note, obtains cast iron;The cast iron of acquisition is heated to 850 DEG C~950 DEG C, progress is air-cooled, is then heated to 350 DEG C~500 DEG C tempering
2h~5h obtains white cast-iron.
Ferrochrome, ferromanganese and ferrosilicon first carry out baking processing, to remove ferrochrome, ferromanganese and ferrosilicon before being added in induction furnace
Moisture content and surface greasy dirt.
Beneficial effects of the present invention are:Spoken parts in traditional operas is made by specific proportioning with common materials such as manganese, chromium, silicon, the pig iron, steel scraps
Air chill all occurs for cast iron, structure of cast iron, and high frequency heat treatment is needed not move through in process, has surface strength height, inside and outside
The advantages that hardness is consistent;It is suitble to the component for rubbing for a long time such as production piston, piston rod and plunger.
Specific implementation mode
It is described further With reference to embodiment:
Embodiment 1
By weight percentage, by manganese 9%, chromium 5%, silicon 3%, surplus is that the pig iron carries out dispensing;
The pig iron is put into after being melted in induction furnace, carries out pre-deoxidation operation, ferrochrome, ferromanganese and ferrosilicon is then added, obtains
Molten iron;It takes molten iron sample to carry out on-the-spot sample analysis to be adjusted the molten iron to the requirement of qualified molten iron according to analysis result;By iron
Coolant-temperature gage is increased to 1550 DEG C~1600 DEG C, carries out final deoxidizing, comes out of the stove;When temperature is down to 1400 DEG C~1460 DEG C, start to pour
Note, obtains cast iron;The cast iron of acquisition is heated to 850 DEG C~950 DEG C, progress is air-cooled, is then heated to 350 DEG C~500 DEG C tempering
2h~5h obtains white cast-iron.
Ferrochrome, ferromanganese and ferrosilicon first carry out baking processing, to remove ferrochrome, ferromanganese and ferrosilicon before being added in induction furnace
Moisture content and surface greasy dirt.
Embodiment 2
By weight percentage, by manganese 11%, chromium 8%, silicon 5%, surplus is that the pig iron carries out dispensing;
The pig iron is put into after being melted in induction furnace, carries out pre-deoxidation operation, ferrochrome, ferromanganese and ferrosilicon is then added, obtains
Molten iron;It takes molten iron sample to carry out on-the-spot sample analysis to be adjusted the molten iron to the requirement of qualified molten iron according to analysis result;By iron
Coolant-temperature gage is increased to 1550 DEG C~1600 DEG C, carries out final deoxidizing, comes out of the stove;When temperature is down to 1400 DEG C~1460 DEG C, start to pour
Note, obtains cast iron;The cast iron of acquisition is heated to 850 DEG C~950 DEG C, progress is air-cooled, is then heated to 350 DEG C~500 DEG C tempering
2h~5h obtains white cast-iron.
Ferrochrome, ferromanganese and ferrosilicon first carry out baking processing, to remove ferrochrome, ferromanganese and ferrosilicon before being added in induction furnace
Moisture content and surface greasy dirt.
Embodiment 3
By weight percentage, by manganese 10%, chromium 6%, silicon 4%, surplus is that the pig iron carries out dispensing;
The pig iron is put into after being melted in induction furnace, carries out pre-deoxidation operation, ferrochrome, ferromanganese and ferrosilicon is then added, obtains
Molten iron;It takes molten iron sample to carry out on-the-spot sample analysis to be adjusted the molten iron to the requirement of qualified molten iron according to analysis result;By iron
Coolant-temperature gage is increased to 1550 DEG C~1600 DEG C, carries out final deoxidizing, comes out of the stove;When temperature is down to 1400 DEG C~1460 DEG C, start to pour
Note, obtains cast iron;The cast iron of acquisition is heated to 850 DEG C~950 DEG C, progress is air-cooled, is then heated to 350 DEG C~500 DEG C tempering
2h~5h obtains white cast-iron.
Ferrochrome, ferromanganese and ferrosilicon first carry out baking processing, to remove ferrochrome, ferromanganese and ferrosilicon before being added in induction furnace
Moisture content and surface greasy dirt.
The appearance for the white cast-iron that three embodiments obtain is followed successively by from low to high according to spoken parts in traditional operas degree:
Embodiment 2, embodiment 1, embodiment 3.
The above embodiments and description only illustrate the principle of the present invention and most preferred embodiment, is not departing from this
Under the premise of spirit and range, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement and protect
In the scope of the invention of shield.
Claims (6)
1. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron, it is characterised in that:Its chemical composition percentage is:Manganese
9%-11%, chromium 5%-8%, silicon 3%-5%, surplus are the pig iron.
2. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron according to claim 1, it is characterised in that:Its
Chemical composition percentage is:Manganese 9%, chromium 5%, silicon 3%, surplus are the pig iron.
3. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron according to claim 1, it is characterised in that:Its
Chemical composition percentage is:Manganese 11%, chromium 8%, silicon 5%, surplus are the pig iron.
4. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron according to claim 1, it is characterised in that:Its
Chemical composition percentage is:10%, chromium 6%, silicon 4%, surplus is the pig iron.
5. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron according to claim 1, it is characterised in that:Its
It is as follows:
By weight percentage, by manganese 9%-11%, chromium 5%-8%, silicon 3%-5%, surplus is that the pig iron carries out dispensing;
The pig iron is put into after being melted in induction furnace, carries out pre-deoxidation operation, ferrochrome, ferromanganese and ferrosilicon is then added, obtains molten iron;
It takes molten iron sample to carry out on-the-spot sample analysis to be adjusted the molten iron to the requirement of qualified molten iron according to analysis result;By molten iron temperature
1550 DEG C~1600 DEG C are increased to, final deoxidizing is carried out, comes out of the stove;When temperature is down to 1400 DEG C~1460 DEG C, starts to pour into a mould, must cast
Iron;The cast iron of acquisition is heated to 850 DEG C~950 DEG C, progress is air-cooled, is then heated to 350 DEG C~500 DEG C tempering 2h~5h,
Obtain white cast-iron.
6. a kind of method producing white cast-iron with manganese, chromium, silicon and the pig iron according to claim 5, it is characterised in that:Institute
Ferrochrome, ferromanganese and ferrosilicon are stated before being added in induction furnace, first carries out baking processing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810126241.9A CN108315634A (en) | 2018-02-08 | 2018-02-08 | A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron |
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CN201810126241.9A CN108315634A (en) | 2018-02-08 | 2018-02-08 | A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron |
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CN108315634A true CN108315634A (en) | 2018-07-24 |
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CN201810126241.9A Pending CN108315634A (en) | 2018-02-08 | 2018-02-08 | A method of white cast-iron is produced with manganese, chromium, silicon and the pig iron |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663214A (en) * | 1970-02-16 | 1972-05-16 | William H Moore | Abrasion resistant cast iron |
CN103614611A (en) * | 2013-11-26 | 2014-03-05 | 辽宁工业大学 | Manganese-silicon high-chromium cast iron and preparation method thereof |
-
2018
- 2018-02-08 CN CN201810126241.9A patent/CN108315634A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3663214A (en) * | 1970-02-16 | 1972-05-16 | William H Moore | Abrasion resistant cast iron |
CN103614611A (en) * | 2013-11-26 | 2014-03-05 | 辽宁工业大学 | Manganese-silicon high-chromium cast iron and preparation method thereof |
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Application publication date: 20180724 |
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