CN107119221A - A kind of micro alloyed high strength grey cast iron part and its method of smelting - Google Patents
A kind of micro alloyed high strength grey cast iron part and its method of smelting Download PDFInfo
- Publication number
- CN107119221A CN107119221A CN201710284060.4A CN201710284060A CN107119221A CN 107119221 A CN107119221 A CN 107119221A CN 201710284060 A CN201710284060 A CN 201710284060A CN 107119221 A CN107119221 A CN 107119221A
- Authority
- CN
- China
- Prior art keywords
- iron
- casting
- inovulant
- high strength
- cast iron
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention provides a kind of micro alloyed high strength grey cast iron part and its method of smelting, it is related to field of metal casting technology, the gray iron casting contains the component of following weight percentage：C 2.92 3.48%, Si 1.52 2.36%, Mn 0.22 0.78%, Cr 0.15 0.5%, Cu 0.3 0.78%, Nb 0.011 0.098%, V 0.02 0.1%, Ti 0.015 0.025%, remaining is iron and other micro inevitable impurity, the present invention strengthens casting matrix by microalloying, improve the strength and stiffness of casting, add effective inoculation agent, graphite form can be effectively improved, hardness, structural homogenity and reduction sensitiveness, lift the mechanical performance of gray iron casting, by the way of mould cavity inoculation, the utilization rate of inovulant can be improved, improve pregnant effect, reduce cost.
Description
Technical field
The present invention relates to field of metal casting technology, and in particular to a kind of micro alloyed high strength grey cast iron part and its melting side
Method.
Background technology
Gray cast iron occupies critical role as traditional metal material in Foundry Production, although gray cast iron is alive in recent years
Shared ratio has declined in boundary's cast iron total output, but statistics shows that gray cast iron still occupies importantly in ironcasting
Position.At present under energy-saving, automotive light weight technology situation in the world, gray cast iron material remains to obtain so widely should
With, with its good casting formability, high intensity, anti-attrition, damping property and it is with low cost the features such as it is inseparable.
Current China has casting strength low in the research of high-strength gray cast iron and production technology with external main gap,
Same molten iron studies point casting produced, the external low 1-2 trades mark of strength ratio；Casting technique falls behind, casting section thickness is big,
Weight is big, and such as lathe class casting is than external weight more than 10%, and engine cylinder-body is than external weight more than 30%；Manufactured with casting
Automobile board or engine cylinder-body wear no resistance, the life-span is low, and sensitivity profile is big, poor processability.
Improving the approach of the mechanical property of gray iron casting at present mainly has following several：Change the silicon carbon ratio in gray iron casting
Example, the selection of inovulant and inoculation mode, heat treatment mode and alloying.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of micro alloyed high strength grey cast iron part and its melting side
Method so that the gray iron casting produced also has other good mechanical properties, and machinery while with very high strength
Processing characteristics is good, and thickness is uniform.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C 2.92-3.48%,
Si 1.52-2.36%, Mn 0.22-0.78%, Cr 0.15-0.5%, Cu 0.3-0.78%, Nb 0.011-0.098%, V
0.02-0.1%, Ti 0.015-0.025%, remaining be iron and other micro inevitable impurity.
Preferably, the micro alloyed high strength grey cast iron part contains the component of following weight percentage：C 3.15%,
Si 1.82%, Mn 0.5%, Cr 0.36%, Cu 0.74%, Nb 0.035%, V 0.08%, Ti 0.017%, remaining be
Iron and other inevitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 5-10min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by titanium valve to be added with stream mode, can be poured into a mould after pulling out Slag treatment, puts inovulant before cast
In in the running gate system of casting mold, during cast, the iron liquid for flowing through running gate system melts inovulant, and enters casting die cavity therewith
Interior, the addition of the inovulant is the 0.06-0.1% of iron liquid amount, and it is 1450-1480 DEG C, the duration of pouring to control pouring temperature
For 15-30s, casting is obtained after cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Preferably, furnace charge includes low-carbon high-quality steel scrap, foundry pig iron and foundry returns in the step (1).
Preferably, the inovulant in the step (4) contains the component of following weight percentage：Si 50-60%, Cr
10-15%, Ba 1-5%, V 2-8%, Al 1-5%, Ca 2-5%, Zr 0.1-1%, remaining is iron.
Preferably, the inovulant in the step (4) is prepared by following methods：Phase is taken by the component of the inovulant
The material allocation mixed smelting of corresponding weight percentage, vacuum stages cooling down, then size-reduced machine are crushed, you can obtained
The inovulant.
Preferably, the particle diameter of titanium valve is 5-10mm in the step (4).
(3) beneficial effect
The invention provides a kind of micro alloyed high strength grey cast iron part and its method of smelting, with advantages below：
1st, the present invention strengthens casting matrix by microalloying, improves the strength and stiffness of casting, and Nb, V and Ti can be with
Nonmetalloid C, N, Si in iron liquid can react, the pearl formed in the small particles such as carbide, nitride, refinement matrix
Body of light, Mn and Cr can promote pearlite to be formed, and play the role of certain refinement pearlite, thus be favorably improved gray iron casting
Intensity, add Cu can reduce the ferrite at thick section, while the spoken parts in traditional operas at thin-walled can be mitigated again, make at each section of casting
Microscopic structure than more consistent, improve the uniformity of casting microscopic structure, thus the processing characteristics of casting can be improved, while Cu
Cr negative effect can be offset, mitigates the chilling tendency of cast iron.
2nd, the overtemperature for controlling holding furnace is 1550-1580 DEG C, and soaking time is 5-10min, can effectively control iron
The content of sulphur and oxygen in liquid, and dystectic compound in iron liquid can form substrate, in the iron liquid after coming out of the stove
Spontaneous nucleus it is relatively more.Control the tapping temperature of iron liquid at 1500-1530 DEG C, casting body tissue graphite can be prevented effectively from
The problem of thick and graphite length is partially long.
3rd, effective inoculation agent is added, graphite form, hardness, structural homogenity can be effectively improved and reduce sensitiveness,
The mechanical performance of gray iron casting is lifted, hardness is improved, chilling tendency is reduced.Wherein, Ba can generate stable compound, casting with oxygen
Not baric after iron solidification, and the oxide that its long-acting anti-ageing ability of moving back is considered as barium forms " air-casing " on molten iron surface, resistance
Block and nitrogen dissolve in.Al is less than 2% in inovulant, influences little to air content.But as strong deoxidier, can in molten iron shape
Into protective oxide layer, the negative effect of nitrogen is reduced, extends the inoculation(effect) time.Enough Si can be with the oxygen in molten iron in inovulant
Generate a large amount of graphite crystal nucleus, can intensive inoculation effect, add larger amount of Cr in inovulant, it is possible to reduce carbide and can be with
Significantly improve the directionality of carbide.
4th, using mould cavity inoculation, inoculation fade phenomenon do not occur substantially for the casting that breeds in casting mold, inovulant it is effective
Utilization rate is greatly increased.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C 3.15%, Si
1.82%th, Mn 0.5%, Cr 0.36%, Cu 0.74%, Nb 0.035%, V 0.08%, Ti 0.017%, remaining be iron and
Other inevitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 8min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by particle diameter for 5-10mm titanium valve to be added with stream mode, can be poured into a mould, be poured after pulling out Slag treatment
Inovulant is placed in the running gate system of casting mold before note, during cast, the iron liquid for flowing through running gate system melts inovulant, and therewith
Into in casting die cavity, the addition of the inovulant is the 0.08% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature,
The duration of pouring is to obtain casting after 20s, cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Wherein, the inovulant in step (4) contains the component of following weight percentage：Si 55%, Cr 15%, Ba
3%th, V 5%, Al 3%, Ca 2%, Zr 0.5%, remaining is iron；
The inovulant is prepared by following methods：The raw material of corresponding weight percentage is taken by the component of inovulant
Allocate mixed smelting, vacuum stages cooling down, then size-reduced machine to crush, you can obtain inovulant.
Embodiment 2：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C 2.92%, Si
2.15%th, Mn 0.3%, Cr 0.5%, Cu 0.3%, Nb 0.011%, V 0.05%, Ti 0.025%, remaining be iron and its
His inevitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 10min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by particle diameter for 5-10mm titanium valve to be added with stream mode, can be poured into a mould, be poured after pulling out Slag treatment
Inovulant is placed in the running gate system of casting mold before note, during cast, the iron liquid for flowing through running gate system melts inovulant, and therewith
Into in casting die cavity, the addition of the inovulant is the 0.06% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature,
The duration of pouring is to obtain casting after 25s, cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Wherein, the inovulant in step (4) contains the component of following weight percentage：Si 55%, Cr 15%, Ba
3%th, V 5%, Al 3%, Ca 2%, Zr 0.5%, remaining is iron；
The inovulant is prepared by following methods：The raw material of corresponding weight percentage is taken by the component of inovulant
Allocate mixed smelting, vacuum stages cooling down, then size-reduced machine to crush, you can obtain inovulant.
Embodiment 3：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C3.48%, Si
1.52%th, Mn 0.78%, Cr 0.15%, Cu 0.78%, Nb 0.05%, V 0.1%, Ti 0.02%, remaining be iron and its
His inevitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 5min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by particle diameter for 5-10mm titanium valve to be added with stream mode, can be poured into a mould, be poured after pulling out Slag treatment
Inovulant is placed in the running gate system of casting mold before note, during cast, the iron liquid for flowing through running gate system melts inovulant, and therewith
Into in casting die cavity, the addition of the inovulant is the 0.1% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature, is poured
The note time is 15s, and casting is obtained after cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Wherein, the inovulant in step (4) contains the component of following weight percentage：Si 55%, Cr 15%, Ba
3%th, V 5%, Al 3%, Ca 2%, Zr 0.5%, remaining is iron；
The inovulant is prepared by following methods：The raw material of corresponding weight percentage is taken by the component of inovulant
Allocate mixed smelting, vacuum stages cooling down, then size-reduced machine to crush, you can obtain inovulant.
Embodiment 4：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C3%, Si 2.36%,
Mn 0.66%, Cr 0.41%, Cu 0.59%, Nb 0.098%, V 0.02%, Ti 0.023%, remaining be iron and other not
Evitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into holding furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 8min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by particle diameter for 5-10mm titanium valve to be added with stream mode, can be poured into a mould, be poured after pulling out Slag treatment
Inovulant is placed in the running gate system of casting mold before note, during cast, the iron liquid for flowing through running gate system melts inovulant, and therewith
Into in casting die cavity, the addition of the inovulant is the 0.06% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature,
The duration of pouring is to obtain casting after 28s, cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Wherein, the inovulant in step (4) contains the component of following weight percentage：Si 55%, Cr 15%, Ba
3%th, V 5%, Al 3%, Ca 2%, Zr 0.5%, remaining is iron；
The inovulant is prepared by following methods：The raw material of corresponding weight percentage is taken by the component of inovulant
Allocate mixed smelting, vacuum stages cooling down, then size-reduced machine to crush, you can obtain inovulant.
Embodiment 5：
A kind of micro alloyed high strength grey cast iron part, the component containing following weight percentage：C3.2%, Si
2.11%th, Mn 0.22%, Cr 0.27%, Cu 0.64%, Nb 0.073%, V 0.06%, Ti 0.015%, remaining be iron
With other inevitable impurity.
The method of smelting of above-mentioned micro alloyed high strength grey cast iron part, comprises the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, it is transferred in holding furnace, is warming up to 1450-1480 DEG C and adds manganeisen, ferrochrome conjunction
Gold, niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, be continuously heating to 1500-1520 DEG C, carried out with spectrometer chemistry into
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 10min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature, will at 1500-1530 DEG C
Molten iron pours the bag that taps a blast furnace, by particle diameter for 5-10mm titanium valve to be added with stream mode, can be poured into a mould, be poured after pulling out Slag treatment
Inovulant is placed in the running gate system of casting mold before note, during cast, the iron liquid for flowing through running gate system melts inovulant, and therewith
Into in casting die cavity, the addition of the inovulant is the 0.06% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature,
The duration of pouring is to obtain casting after 30s, cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and be incubated at this temperature
5h, then slowly cools to air cooling of being come out of the stove after 230 DEG C with stove, you can obtain the gray iron casting.
Wherein, the inovulant in step (4) contains the component of following weight percentage：Si 55%, Cr 15%, Ba
3%th, V 5%, Al 3%, Ca 2%, Zr 0.5%, remaining is iron；
The inovulant is prepared by following methods：The raw material of corresponding weight percentage is taken by the component of inovulant
Allocate mixed smelting, vacuum stages cooling down, then size-reduced machine to crush, you can obtain inovulant.
Performance detection：
Gray iron casting performance test results prepared in accordance with the present invention are as shown in table 1：
The performance detection of table 1
To sum up, the embodiment of the present invention has the advantages that：Preparation technology is simple, the gray iron casting tensile strength being made
Height, yield strength is big, and hardness is high, can meet the market demand.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a kind of micro alloyed high strength grey cast iron part, it is characterised in that the component containing following weight percentage：C
2.92-3.48%, Si 1.52-2.36%, Mn 0.22-0.78%, Cr 0.15-0.5%, Cu 0.3-0.78%, Nb
0.011-0.098%, V 0.02-0.1%, Ti 0.015-0.025%, remaining be iron and other inevitable impurity.
2. micro alloyed high strength grey cast iron part as claimed in claim 1, it is characterised in that contain following weight percentage
Component：C 3.15%, Si 1.82%, Mn 0.5%, Cr 0.36%, Cu 0.74%, Nb 0.035%, V 0.08%, Ti
0.017%th, remaining is iron and other inevitable impurity.
3. the method for smelting of the micro alloyed high strength grey cast iron part as any one of claim 1-2, it is characterised in that
Comprise the following steps：
(1) furnace charge and carburant are added into smelting furnace burner hearth, heating is melted；
(2) after furnace charge is completely melt, be transferred in holding furnace, be warming up to 1450-1480 DEG C add manganeisen, ferrochrome,
Niobium vanadium alloy, Antaciron and metallic copper；
(3) after alloy and metallic copper dissolve completely, 1500-1520 DEG C is continuously heating to, chemical composition point is carried out with spectrometer
Analysis, after chemical composition analysis is qualified, is warming up to 1550-1580 DEG C, and in this temperature 5-10min；
(4) the rapid bits by iron liquid surface handle clean, start to come out of the stove, and control tapping temperature is at 1500-1530 DEG C, by molten iron
The bag that taps a blast furnace is poured, by titanium valve to be added with stream mode, can be poured into a mould after pulling out Slag treatment, inovulant is placed in casting before cast
In the running gate system of type, during cast, the iron liquid for flowing through running gate system melts inovulant, and enters therewith in casting die cavity, institute
The addition for stating inovulant is the 0.06-0.1% of iron liquid amount, and it is 1450-1480 DEG C to control pouring temperature, and the duration of pouring is 15-
Casting is obtained after 30s, cooling；
(5) by casting shove charge at room temperature, then with 100 DEG C/h speed 510-540 DEG C is heated to, and is incubated 5h at this temperature,
Then air cooling of being come out of the stove after 230 DEG C is slowly cooled to stove, you can obtain the gray iron casting.
4. micro alloyed high strength grey cast iron part as claimed in claim 3, it is characterised in that furnace charge bag in the step (1)
Include low-carbon high-quality steel scrap, foundry pig iron and foundry returns.
5. micro alloyed high strength grey cast iron part as claimed in claim 3, it is characterised in that breeding in the step (4)
Agent contains the component of following weight percentage：Si 50-60%, Cr 10-15%, Ba 1-5%, V 2-8%, Al 1-5%,
Ca 2-5%, Zr 0.1-1%, remaining is iron.
6. micro alloyed high strength grey cast iron part as claimed in claim 5, it is characterised in that breeding in the step (4)
Agent is prepared by following methods：The material allocation of corresponding weight percentage is taken to mix molten by the component of the inovulant
Refining, vacuum stages cooling down, then size-reduced machine are crushed, you can obtain the inovulant.
7. micro alloyed high strength grey cast iron part as claimed in claim 3, it is characterised in that titanium valve in the step (4)
Particle diameter is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284060.4A CN107119221B (en) | 2017-04-26 | 2017-04-26 | A kind of micro alloyed high strength grey cast iron part and its method of smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710284060.4A CN107119221B (en) | 2017-04-26 | 2017-04-26 | A kind of micro alloyed high strength grey cast iron part and its method of smelting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107119221A true CN107119221A (en) | 2017-09-01 |
| CN107119221B CN107119221B (en) | 2018-08-07 |
Family
ID=59725467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710284060.4A Active CN107119221B (en) | 2017-04-26 | 2017-04-26 | A kind of micro alloyed high strength grey cast iron part and its method of smelting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107119221B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019189905A (en) * | 2018-04-24 | 2019-10-31 | 株式会社ファンドリーサービス | Inoculant for cast iron |
| CN110527897A (en) * | 2019-09-20 | 2019-12-03 | 西安飞机工业（集团）有限责任公司 | A method of improving HTCu1.8 alloy cast iron intensity |
| CN113737084A (en) * | 2021-08-26 | 2021-12-03 | 共享装备股份有限公司 | Production method of high-strength gray iron casting |
| CN114558997A (en) * | 2022-02-25 | 2022-05-31 | 宁国东方碾磨材料股份有限公司 | Inoculant for improving processability of high-strength gray cast iron and gray cast iron preparation method |
| CN114574752A (en) * | 2022-02-25 | 2022-06-03 | 宁国东方碾磨材料股份有限公司 | Free-cutting gray cast iron alloy for cylinder block and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220635A (en) * | 2001-01-23 | 2002-08-09 | Nippon Steel Corp | Single-layer sleeve roll for hot rolling made with centrifugal casting |
| CN1653202A (en) * | 2002-05-13 | 2005-08-10 | 斯堪尼亚有限公司 | Gray cast iron alloy and cast internal combustion engine component |
| CN101418413A (en) * | 2008-09-24 | 2009-04-29 | 上海大学 | Niobium alloy cast iron brake disk material and technique for producing the same |
| US20130118651A1 (en) * | 2011-11-14 | 2013-05-16 | Lg Electronics Inc. | Alloy cast iron and manufacturing method of vane using the same |
| CN103282528A (en) * | 2010-12-02 | 2013-09-04 | 斯堪尼亚商用车有限公司 | Grey iron alloy and brake disc containing grey iron alloy |
-
2017
- 2017-04-26 CN CN201710284060.4A patent/CN107119221B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002220635A (en) * | 2001-01-23 | 2002-08-09 | Nippon Steel Corp | Single-layer sleeve roll for hot rolling made with centrifugal casting |
| CN1653202A (en) * | 2002-05-13 | 2005-08-10 | 斯堪尼亚有限公司 | Gray cast iron alloy and cast internal combustion engine component |
| CN101418413A (en) * | 2008-09-24 | 2009-04-29 | 上海大学 | Niobium alloy cast iron brake disk material and technique for producing the same |
| CN103282528A (en) * | 2010-12-02 | 2013-09-04 | 斯堪尼亚商用车有限公司 | Grey iron alloy and brake disc containing grey iron alloy |
| US20130118651A1 (en) * | 2011-11-14 | 2013-05-16 | Lg Electronics Inc. | Alloy cast iron and manufacturing method of vane using the same |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019189905A (en) * | 2018-04-24 | 2019-10-31 | 株式会社ファンドリーサービス | Inoculant for cast iron |
| JP6993646B2 (en) | 2018-04-24 | 2022-01-13 | 株式会社ファンドリーサービス | Inoculant for cast iron |
| CN110527897A (en) * | 2019-09-20 | 2019-12-03 | 西安飞机工业（集团）有限责任公司 | A method of improving HTCu1.8 alloy cast iron intensity |
| CN113737084A (en) * | 2021-08-26 | 2021-12-03 | 共享装备股份有限公司 | Production method of high-strength gray iron casting |
| CN114558997A (en) * | 2022-02-25 | 2022-05-31 | 宁国东方碾磨材料股份有限公司 | Inoculant for improving processability of high-strength gray cast iron and gray cast iron preparation method |
| CN114574752A (en) * | 2022-02-25 | 2022-06-03 | 宁国东方碾磨材料股份有限公司 | Free-cutting gray cast iron alloy for cylinder block and preparation method thereof |
| CN114574752B (en) * | 2022-02-25 | 2023-02-28 | 宁国东方碾磨材料股份有限公司 | Free-cutting gray cast iron alloy for cylinder block and preparation method thereof |
| CN114558997B (en) * | 2022-02-25 | 2024-02-20 | 宁国东方碾磨材料股份有限公司 | Inoculant for improving processability of high-strength gray cast iron and preparation method of gray cast iron |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107119221B (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107119221B (en) | A kind of micro alloyed high strength grey cast iron part and its method of smelting | |
| CN108220766B (en) | Cr-V hot work die steel and preparation method thereof | |
| CN102107215B (en) | Resource-saving boron-containing high-speed steel composite roll and preparation method thereof | |
| CN107475641B (en) | High-speed steel roll and preparation method thereof | |
| CN110157988A (en) | High-purity, the homogeneous rare earth cold roll steel alloy material of one kind and preparation method | |
| CN109371329B (en) | High-temperature-resistant artificial crystal forming die steel material and preparation method thereof | |
| CN104060157B (en) | A kind of hypereutectic high-chromium white cast iron and preparation method thereof | |
| CN110230009B (en) | Hot work die steel with good cutting performance and preparation method thereof | |
| CN109023119A (en) | A kind of abrasion-resistant stee and its manufacturing method with excellent plasticity and toughness | |
| CN105506442B (en) | A kind of Si Mn alloyings wear-resisting ductile iron abrading-ball and preparation method thereof | |
| CN105132796B (en) | Middle silicon molybdenum alloy vermicular cast iron glass mold material and preparation method thereof | |
| CN101530863A (en) | Alloy cast steel roll and preparation method thereof | |
| CN102925783A (en) | Method for preparing hypereutectic high chromium white cast iron | |
| CN107177773A (en) | A kind of high-strength thin-walled gray iron casting | |
| CN102560252B (en) | Steel for medium-carbon Cr alloying connecting rod and manufacturing method of steel | |
| CN106636861B (en) | The preparation technology of high-alloy hot work mould steel | |
| CN102400032B (en) | Large-cross-section nodular cast iron | |
| CN110343949A (en) | HRB400E high-strength anti-seismic steel bar production method and steel containing niobium vanadium | |
| CN109280743A (en) | A kind of roll high-strength abrasion-proof steel and its production method | |
| CN104004955B (en) | The manufacture method of high performance jetting steel | |
| CN110029264A (en) | A kind of low cost 40CrV tool steel and its production method | |
| CN1067443C (en) | Multi-element w-alloy cast iron roll collar and its making technology | |
| CN104593663B (en) | A kind of wear-resistant white cast iron and preparation method thereof | |
| CN105755364A (en) | VCp reinforced composite abrasion-resistant alloy material and preparation method thereof | |
| CN110055463A (en) | A kind of lightweight ball mill wearing liner plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A micro alloyed high strength gray iron casting and its melting method Effective date of registration: 20201127 Granted publication date: 20180807 Pledgee: Hanshan Tongda Financing Guarantee Co.,Ltd. Pledgor: HANSHAN COUNTY ZHAOXIA CASTING Co.,Ltd. Registration number: Y2020980008422 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |