CN107400750A - High trade mark magnesium iron inovulant and preparation method thereof - Google Patents
High trade mark magnesium iron inovulant and preparation method thereof Download PDFInfo
- Publication number
- CN107400750A CN107400750A CN201710768758.3A CN201710768758A CN107400750A CN 107400750 A CN107400750 A CN 107400750A CN 201710768758 A CN201710768758 A CN 201710768758A CN 107400750 A CN107400750 A CN 107400750A
- Authority
- CN
- China
- Prior art keywords
- trade mark
- inovulant
- magnesium iron
- high trade
- preparation
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
-
- 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
Abstract
The invention discloses a kind of high trade mark magnesium iron inovulant and preparation method thereof, counted using high trade mark magnesium iron inovulant gross weight as 100%, the chemical composition of high trade mark magnesium iron inovulant includes：68% 72% Si, 3% 5% Ba, 1% 3% Ca, 0.15% 0.6% Sb, surplus Fe.The high-grade nodular cast iron inovulant of the present invention can increase the intensity of spheroidal graphite cast-iron, increase elongation, reduce its hardness, improve machinability, meet the needs of production application.
Description
Technical field
The present invention relates to nodular cast iron production field, in particular it relates to high trade mark magnesium iron inovulant and preparation method thereof.
Background technology
In production application, spheroidal graphite cast-iron tensile strength >=500Mpa, elongation >=2%, HB are commonly used：210-255.
Nodulizing grade 1-3 levels, graphite 5-7 levels, content of pearlite in alloy >=65%.And contain in the market typically by raising pearlite
Amount, reaches 700Mpa so as to improve tensile strength, while hardness also accordingly increases, even up to HB >=255, causes machining
Difficulty, limits the application of spheroidal graphite cast-iron, needs to develop a kind of new inoculant for this, adds in favor of the cutting of spheroidal graphite cast-iron
Work.
The content of the invention
It is an object of the invention to provide a kind of high trade mark magnesium iron inovulant and preparation method thereof, the high trade mark magnesium iron is with pregnant
The intensity that agent adds spheroidal graphite cast-iron is educated, adds elongation, reduces its hardness, improves its machinability, is met
The demand of production application.
To achieve these goals, the invention provides a kind of high trade mark magnesium iron inovulant, with high trade mark magnesium iron with pregnant
Educate agent gross weight includes for 100% meter, the chemical composition of high trade mark magnesium iron inovulant：68%-72% Si, 3%-5%'s
Ba, 1%-3% Ca, 0.15%-0.6% Sb, surplus Fe.
The present invention also provides a kind of preparation method of previously described high trade mark magnesium iron inovulant, the preparation method bag
Include：(1) raw material is weighed with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated；(2) after allocating
Raw material carry out melting；(3) melting matter is poured into a mould, cooled down, crush granulation.
Pass through above-mentioned technical proposal, present invention determine that the elemental constituent of high trade mark magnesium iron inovulant and containing for each element
Amount, wherein Si, Ba element maintain graphite crystallization core mass has good stability, while also graphite wafer at high temperature
Lattice have excellent lattice, so that there is higher graphite in casting；Ca and Ba elements compoundings, delay nodulizer outburst and
Smooth reaction, while also there is good anti-inoculation fade effect；Sb is strong promotion pearly-lustre element of volume to pearlite matrix
Invigoration effect is played, strengthens cast iron intensity；(4) high-grade nodular cast iron of the invention adds the strong of spheroidal graphite cast-iron with inovulant
Degree, adds elongation, reduces its hardness, improve its machinability, meet the needs of production application.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of high trade mark magnesium iron inovulant, using high trade mark magnesium iron inovulant gross weight as 100%
Meter, the chemical composition of high trade mark magnesium iron inovulant include：68%-72% Si, 3%-5% Ba, 1%-3% Ca,
0.15%-0.6% Sb, surplus Fe.
Pass through above-mentioned technical proposal, present invention determine that the elemental constituent of high trade mark magnesium iron inovulant and containing for each element
Amount, wherein Si, Ba element maintain graphite crystallization core mass has good stability, while also graphite wafer at high temperature
Lattice have excellent lattice, so that there is higher graphite in casting；Ca and Ba elements compoundings, delay nodulizer outburst and
Smooth reaction, while also there is good anti-inoculation fade effect；Sb is strong promotion pearly-lustre element of volume to pearlite matrix
Invigoration effect is played, strengthens cast iron intensity；(4) high-grade nodular cast iron of the invention adds the strong of spheroidal graphite cast-iron with inovulant
Degree, adds elongation, reduces its hardness, improve its machinability, meet the needs of production application.
According in above-mentioned technical proposal each element content allotment can accomplished the object of the invention high trade mark magnesium iron
With inovulant, in order to further increase the intensity of spheroidal graphite cast-iron, increase elongation, reduce its hardness, the cutting for improving it adds
Work, meets the needs of production application, it is preferable that counted using high trade mark magnesium iron inovulant gross weight as 100%, high trade mark magnesium iron
Included with the chemical composition of inovulant：69%-71% Si, 3.6%-4.6% Ba, 1.6%-2.6% Ca, 0.36%-
0.54% Sb, surplus Fe.
For the particle diameter of high trade mark magnesium iron inovulant, those skilled in the art can be adjusted in relative broad range, be
Dispersion effect of the high trade mark magnesium iron of lifting with inovulant in use, it is preferable that the grain of high trade mark magnesium iron inovulant
Footpath is not more than 10mm.
The present invention also provides a kind of preparation method of previously described high trade mark magnesium iron inovulant, the preparation method bag
Include：(1) raw material is weighed with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated；(2) after allocating
Raw material carry out melting；(3) melting matter is poured into a mould, cooled down, crush granulation.For example, chemical composition and quality hundred here
Ratio is divided to be matched and be calculated according to the content of each element in the raw material used, as long as those skilled in the art's energy
The mode enough understood can use herein.
Pass through above-mentioned technical proposal, present invention determine that the elemental constituent of high trade mark magnesium iron inovulant and containing for each element
Amount, wherein Si, Ba element maintain graphite crystallization core mass has good stability, while also graphite wafer at high temperature
Lattice have excellent lattice, so that there is higher graphite in casting；Ca and Ba elements compoundings, delay nodulizer outburst and
Smooth reaction, while also there is good anti-inoculation fade effect；Sb is strong promotion pearly-lustre element of volume to pearlite matrix
Invigoration effect is played, strengthens cast iron intensity；(4) high-grade nodular cast iron of the invention adds the strong of spheroidal graphite cast-iron with inovulant
Degree, adds elongation, reduces its hardness, improve its machinability, meet the needs of production application, and the high board
The preparation method of number magnesium iron inovulant is simple.
For the raw material of high trade mark magnesium iron inovulant, those skilled in the art can be adjusted in relative broad range, be
Make the graphite crystallization core mass there is good stability at high temperature, while also graphite lattice has excellent lattice
With property, so that there is higher graphite in casting, it is preferable that Si is by Si-Mg-Fe alloy, Antaciron, calcium-silicon and Si-Ba alloy
In one or more offers.
For the raw material of high trade mark magnesium iron inovulant, those skilled in the art can be adjusted in relative broad range, be
Promoting invigoration effect of the pearly-lustre element of volume to pearlite matrix, it is preferable that Sb is by antimony slab, and one in antimony oxide and lead-antimony alloy
Kind or a variety of offers.
For the raw material of high trade mark magnesium iron inovulant, those skilled in the art can be adjusted in relative broad range, be
Delay nodulizer to break out and smooth reaction, while also there is good anti-inoculation fade effect, it is preferable that Ca is by calcium oxide
And/or calcium-silicon provides.
For the raw material of high trade mark magnesium iron inovulant, those skilled in the art can be adjusted in relative broad range, excellent
Selection of land, Ba are provided by Si-Ba alloy.
In the above-mentioned technical solutions, it can be adjusted flexibly for smelting temperature, those skilled in the art in relative broad range, be
It is easy to high trade mark magnesium iron inovulant to be molded and reduce the loss of each element, it is preferable that smelting temperature is 1510-1520 DEG C.
In the above-mentioned technical solutions, it can be adjusted flexibly for smelting temperature, those skilled in the art in relative broad range, be
It is easy to high trade mark magnesium iron inovulant to be molded and reduce the loss of each element, it is preferable that pouring temperature is 1520-1530 DEG C.
The present invention will be described in detail by way of examples below.
Embodiment 1
The preparation method of high trade mark magnesium iron inovulant, the preparation method include：
(1) weigh raw material with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated, with high board
Number magnesium iron inovulant gross weight is 100% meter, and the chemical composition of high trade mark magnesium iron inovulant includes：69% Si, 3.6%
Ba, 1.6% Ca, 0.36 Sb, surplus Fe；
(2) raw material after allotment is carried out at 1510 DEG C of meltings；
(3) melting matter is poured into a mould in 1520 DEG C, cooled down, crush granulation.
Embodiment 2
The preparation method of high trade mark magnesium iron inovulant, the preparation method include：
(1) weigh raw material with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated, with high board
Number magnesium iron inovulant gross weight is 100% meter, and the chemical composition of high trade mark magnesium iron inovulant includes：71% Si, 4.6%
Ba, 2.6% Ca, 0.54% Sb, surplus Fe；
(2) raw material after allotment is carried out at 1520 DEG C of meltings；
(3) melting matter is poured into a mould in 1530 DEG C, cooled down, crush granulation.
Embodiment 3
The preparation method of high trade mark magnesium iron inovulant, the preparation method include：
(1) weigh raw material with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated, with high board
Number magnesium iron inovulant gross weight is 100% meter, and the chemical composition of high trade mark magnesium iron inovulant includes：70% Si, 4.0%
Ba, 2.1% Ca, 0.45% Sb, surplus Fe；
(2) raw material after allotment is carried out at 1515 DEG C of meltings；
(3) melting matter is poured into a mould in 1525 DEG C, cooled down, crush granulation.
Embodiment 4
The preparation method of high trade mark magnesium iron inovulant, the preparation method include：
(1) weigh raw material with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated, with high board
Number magnesium iron inovulant gross weight is 100% meter, and the chemical composition of high trade mark magnesium iron inovulant includes：68% Si, 3%
Ba, 1% Ca, 0.15 Sb, surplus Fe；
(2) raw material after allotment is carried out at 1510 DEG C of meltings；
(3) melting matter is poured into a mould in 1520 DEG C, cooled down, crush granulation.
Embodiment 5
The preparation method of high trade mark magnesium iron inovulant, the preparation method include：
(1) weigh raw material with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated, with high board
Number magnesium iron inovulant gross weight is 100% meter, and the chemical composition of high trade mark magnesium iron inovulant includes：72% Si, 5%
Ba, 3% Ca, 0.6% Sb, surplus Fe；
(2) raw material after allotment is carried out at 1520 DEG C of meltings；
(3) melting matter is poured into a mould in 1530 DEG C, cooled down, crush granulation.
Comparative example 1
The casting peak board silicon iron inoculator of Ningxia Zhu Feng specific alloys Co., Ltd production.
Application examples
Inovulant in above-described embodiment 1- embodiments 5 and comparative example 1 is taken into 35g respectively, 800g is added corresponding to respectively
Magnesium iron, 150g steel scraps and 10.5g nodulizers are produced, and the performance of spheroidal graphite cast-iron is detected according to examination criteria.
According to GB/T 228.1-2010 and GB/T 231.1-2009 standards, the performance of spheroidal graphite cast-iron in application examples is detected,
It was found that the tensile strength for the spheroidal graphite cast-iron that the nodulizer obtained in Application Example 1-3 obtains is 756-778MPa, yield strength
For 510-518MPa, elongation 2.6-3.5%, Brinell hardness 172-181HBW, wherein, obtained in Application Example 3
The best performance for the spheroidal graphite cast-iron that nodulizer obtains.
And the tensile strength for the spheroidal graphite cast-iron that the nodulizer obtained in Application Example 4,5 obtains is 732-748MPa, bend
It is 456-470MPa, elongation 2.2-2.5%, Brinell hardness 192-203HBW to take intensity.
The tensile strength for the spheroidal graphite cast-iron that nodulizer obtains is 825MPa, yield strength 569MPa in Comparison study example 1,
Elongation is 1.6%, Brinell hardness 237HBW.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
- A kind of 1. high trade mark magnesium iron inovulant, it is characterised in that counted using high trade mark magnesium iron inovulant gross weight as 100%, The chemical composition of high trade mark magnesium iron inovulant includes：68-72% Si, 3-5% Ba, 1-3% Ca, 0.15-0.6%'s Sb, surplus Fe.
- 2. high trade mark magnesium iron inovulant according to claim 1, wherein, using high trade mark magnesium iron with inovulant gross weight as 100% meter, the chemical composition of high trade mark magnesium iron inovulant include：69-71% Si, 3.6-4.6% Ba, 1.6-2.6% Ca, 0.36-0.54% Sb, surplus Fe.
- 3. high trade mark magnesium iron inovulant according to claim 1 or 2, wherein, the particle diameter of high trade mark magnesium iron inovulant No more than 10mm.
- 4. the preparation method of the high trade mark magnesium iron inovulant described in a kind of any one of claim 1-3, it is characterised in that described Preparation method includes：(1) raw material is weighed with the chemical composition and mass percent of inovulant by high trade mark magnesium iron to be allocated；(2) raw material after allotment is subjected to melting；(3) melting matter is poured into a mould, cooled down, crush granulation.
- 5. preparation method according to claim 4, wherein, Si is by Si-Mg-Fe alloy, Antaciron, calcium-silicon and silicon barium One or more offers in alloy.
- 6. preparation method according to claim 4, wherein, Ba is provided by Si-Ba alloy.
- 7. preparation method according to claim 4, wherein, Sb is by antimony slab, one kind or more in antimony oxide and lead-antimony alloy Kind provides.
- 8. preparation method according to claim 4, wherein, Ca is provided by calcium oxide and/or calcium-silicon.
- 9. preparation method according to claim 4, wherein, smelting temperature is 1510-1520 DEG C.
- 10. preparation method according to claim 4, wherein, pouring temperature is 1520-1530 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107937656A (en) * | 2017-12-13 | 2018-04-20 | 南京浦江合金材料股份有限公司 | A kind of inovulant and its preparation process for as cast condition production pearlitic ductile iron |
| CN109880958A (en) * | 2019-02-26 | 2019-06-14 | 江苏亚峰合金材料有限公司 | Marine diesel oil generator cylinder body special inoculant |
| KR20200100821A (en) * | 2017-12-29 | 2020-08-26 | 엘켐 에이에스에이 | Cast iron inoculant and method of producing cast iron inoculant |
| KR20200101437A (en) * | 2017-12-29 | 2020-08-27 | 엘켐 에이에스에이 | Cast iron inoculant and method of producing cast iron inoculant |
| CN111727264A (en) * | 2017-12-29 | 2020-09-29 | 埃尔凯姆公司 | Cast iron inoculant and method for producing a cast iron inoculant |
| CN111801430A (en) * | 2017-12-29 | 2020-10-20 | 埃尔凯姆公司 | Cast iron inoculant and method for producing a cast iron inoculant |
| US11486012B2 (en) | 2017-12-29 | 2022-11-01 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
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| CN107937656A (en) * | 2017-12-13 | 2018-04-20 | 南京浦江合金材料股份有限公司 | A kind of inovulant and its preparation process for as cast condition production pearlitic ductile iron |
| TWI713966B (en) * | 2017-12-29 | 2020-12-21 | 挪威商艾爾坎股份有限公司 | Cast iron inoculant, use thereof and method for production of cast iron inoculant |
| CN111742065A (en) * | 2017-12-29 | 2020-10-02 | 埃尔凯姆公司 | Cast iron inoculant and method for producing a cast iron inoculant |
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| CN111801430A (en) * | 2017-12-29 | 2020-10-20 | 埃尔凯姆公司 | Cast iron inoculant and method for producing a cast iron inoculant |
| US11479828B2 (en) | 2017-12-29 | 2022-10-25 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
| KR20200101437A (en) * | 2017-12-29 | 2020-08-27 | 엘켐 에이에스에이 | Cast iron inoculant and method of producing cast iron inoculant |
| KR20200100821A (en) * | 2017-12-29 | 2020-08-26 | 엘켐 에이에스에이 | Cast iron inoculant and method of producing cast iron inoculant |
| US11932913B2 (en) | 2017-12-29 | 2024-03-19 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
| US11486011B2 (en) | 2017-12-29 | 2022-11-01 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
| US11486012B2 (en) | 2017-12-29 | 2022-11-01 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
| KR102494632B1 (en) | 2017-12-29 | 2023-01-31 | 엘켐 에이에스에이 | Cast iron inoculants and methods of producing cast iron inoculants |
| JP7275146B2 (en) | 2017-12-29 | 2023-05-17 | エルケム エイエスエイ | Cast iron inoculant and method for producing cast iron inoculant |
| US11708618B2 (en) | 2017-12-29 | 2023-07-25 | Elkem Asa | Cast iron inoculant and method for production of cast iron inoculant |
| CN109880958A (en) * | 2019-02-26 | 2019-06-14 | 江苏亚峰合金材料有限公司 | Marine diesel oil generator cylinder body special inoculant |
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