CN106048395B - A kind of liquid metal flows accelerator - Google Patents
A kind of liquid metal flows accelerator Download PDFInfo
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- CN106048395B CN106048395B CN201610542335.5A CN201610542335A CN106048395B CN 106048395 B CN106048395 B CN 106048395B CN 201610542335 A CN201610542335 A CN 201610542335A CN 106048395 B CN106048395 B CN 106048395B
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- accelerator
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- ferrosilicon
- ferronickel
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- 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
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- 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
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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
- C22C37/04—Cast-iron alloys containing spheroidal graphite
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
A kind of liquid metal flows accelerator of the present invention, it is characterised in that the accelerator is made up of ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and rare-earth nodularizer, and the mass percent of each component is：Ferrosilicon：55 63%, ferromanganese：16 22%, ferronickel：3 5%, bismuth：0.5 2%, silicon zirconium inovulant：10 18%, rare-earth nodularizer：1‑4%.The accelerator can effectively improve the mobility of liquid metal in low smelting heat, reduce production process in stomata, incompleteness, it is loose the defects of formation, substantially improve the property indices of casting, improve the yields of enterprise's production, the amount added simultaneously is few, service efficiency is high, and use cost is low, increases the economic well-being of workers and staff of enterprise.
Description
Technical field
The present invention relates to metal smelt technical field, more particularly to a kind of liquid metal flows accelerator.
Background technology
The mobility of metal refers to the fluid ability of molten metal, the quality of metal fluidity, generally with " helical flow
The length of property sample " is weighed, and metal liquid is poured into spiral shape sample casting mold, under identical pouring condition, alloy
Mobility is better, and the sample poured out is longer.Different types of metal liquid, there is different mobility, the stream of metal liquid
Dynamic property is good, and mold-filling capacity is just strong, is readily available that size is accurate, profile is complete and clear-cut casting, if Liquid-metal flow
Property is bad, will appear from following casting defect：(1) pour less than with cold shut, pour less than refer to casting it is incomplete or may profile it is imperfect,
Or possibility casting is complete, but corner circle and light, often at the position away from cast gate and thin-walled, cold shut is this defect
Finger is penetrated on casting or not penetrated, a kind of defect in the rounded shape gap in edge, and cold shut is more at thin-walled, metal stream converges
At conjunction, Quench position etc.；(2) stomata and field trash, the poor fluidity of metal liquid, then viscosity is big, the gas in molten metal
Float and discharge with field trash inconvenience, easily form stomata, field trash one kind casting defect, stomata refers to inner surface relatively light
Sliding, generally circular in cross section, oval hole, does not expose cast(ing) surface generally, field trash refers to exist in casting or on surface
The particle class defects different from parent metal composition, common are sand, slag, oxide, sulfide etc..
As can be seen here, the quality of metal fluidity governs the yield rate of foundry enterprise, wherein, chemical composition is to influence gold
Belong to this quality factor of liquid fluidity, therefore, it is necessary to develop a kind of accelerator for improving the mobility of liquid metal in melting.
The content of the invention
To solve above-mentioned problem, it is an object of the invention to provide a kind of liquid metal flows accelerator.Institute
The mobility of liquid metal in low smelting heat can be effectively improved by stating accelerator, reduce stomata, incompleteness, loose etc. in production process
The formation of defect, the property indices of casting are substantially improved, improve the yields of enterprise's production, while the amount added is few, makes
With efficiency high, use cost is low, increases the economic well-being of workers and staff of enterprise.
To reach above-mentioned purpose, the technical scheme is that：
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：55-63%, ferromanganese：16-22%, ferronickel：3-5%, bismuth：
0.5-2%, silicon zirconium inovulant：10-18%, rare-earth nodularizer：1-4%.
Further, the mass percent of each component is in the accelerator：Ferrosilicon：62%, ferromanganese：20%, ferronickel：
4%, bismuth：1%, silicon zirconium inovulant：11%, rare-earth nodularizer：2%.
Preferably, the ferrosilicon selects FeSi75-A or any of FeSi75-B or FeSi75-C.
Preferably, the ferromanganese selects any of FeMn64 or FeMn68.
Preferably, the ferronickel selects any of FeNi20 or FeNi30.
Preferably, the rare-earth nodularizer is rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 or FeSiMg10Re7.
Preferably, the addition when accelerator uses is the 3-5% of total melting weight.
Ferrosilicon is using coke, steel cuttings, quartz or silica as raw material, and the ferro-silicium made of electric furnace smelting, ferrosilicon is in iron
It is used as the reducing agent for producing low carbon ferroalloy in alloy industry.Ferrosilicon adds in cast iron the inovulant that can make spheroidal graphite cast-iron, and energy
Prevent carbide from being formed, promote the precipitation and nodularization of graphite, improve cast iron.Element silicon can promote carbon contained in the pig iron point
From for graphite-like, can deoxygenate, moreover it is possible to the core of casting is reduced, the mobility of molten pig iron can be improved, reduces the amount of contraction of casting,
But it is siliceous excessive, it the pig iron is hardened and become fragile.
Ferromanganese can be used as deoxidier and alloy addition in steel-making, can improve the casting character of the pig iron and cut performance,
Manganese can also form manganese sulfide with objectionable impurities sulphur, into clinker.
Ferronickel is used as alloying element additive in steel industry, the bending strength and hardness of steel can be improved, in cast iron
Its even structure can be made, density improves.
Bismuth adds the Low temperature impact toughness that can improve steel in steel industry, be advantageous to graphitization form refinement and
Homogenize, improve stability.
Silicon zirconium inovulant obtains tremendous development in recent years.As silicon systems inovulant, the high pregnant effect of silicon content is good, and section is equal
Even property is good, and thickness case hardness difference is small.Another important element zirconium, dissolved nitrogen is reduced with the nitride of nitrogen reaction generation, prevents iron
The reversible suction nitrogen of water, suppress inoculation fade.The carbide of a small amount of zirconium formation, nitride rise as graphite crystallization core in molten iron
To being advantageous to graphited effect.
The beneficial effects of the present invention are：
(1) a kind of liquid metal flows accelerator provided by the invention, each component proportion use, can be effective
Improve low smelting heat in liquid metal mobility, reduce production process in stomata, incompleteness, it is loose the defects of formation, significantly
Improve the property indices of casting, improve the yields of enterprise's production；
(2) a kind of liquid metal flows accelerator provided by the invention, the amount that the needs in fusion process add is few,
Service efficiency is high, and use cost is low, increases the economic well-being of workers and staff of enterprise.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is further detailed with reference to embodiments
Describe in detail bright.
Embodiment 1
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：55%, ferromanganese：17%, ferronickel：5%, bismuth：1%, silicon zirconium
Inovulant：18%, rare-earth nodularizer：4%.
Preferably, the ferrosilicon selects FeSi75-A, and the ferromanganese selects FeMn64, and the ferronickel selects FeNi20, institute
It is rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 to state rare-earth nodularizer.
The addition when accelerator uses is the 3% of total melting weight.
Embodiment 2
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：57%, ferromanganese：22%, ferronickel：3%, bismuth：0.5%, silicon
Zirconium inovulant：14%, rare-earth nodularizer：3.5%.
Preferably, the ferrosilicon selects FeSi75-A, and the ferromanganese selects FeMn68, and the ferronickel selects FeNi20, institute
It is rare earth ferrosilicomagnesium nodulizer FeSiMg10Re7 to state rare-earth nodularizer.
The addition when accelerator uses is the 4% of total melting weight.
Embodiment 3
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：62%, ferromanganese：20%, ferronickel：4%, bismuth：1%, silicon zirconium
Inovulant：11%, rare-earth nodularizer：2%.
Preferably, the ferrosilicon selects FeSi75-B, and the ferromanganese selects FeMn68, and the ferronickel selects FeNi20, institute
It is rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 to state rare-earth nodularizer.
Preferably, the addition when accelerator uses is the 5% of total melting weight.
Embodiment 4
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：63%, ferromanganese：16%, ferronickel：5%, bismuth：2%, silicon zirconium
Inovulant：13%, rare-earth nodularizer：1%.
Preferably, the ferrosilicon selects FeSi75-C, and the ferromanganese selects FeMn64, and the ferronickel selects FeNi30, institute
It is rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 to state rare-earth nodularizer.
Preferably, the addition when accelerator uses is the 4% of total melting weight.
Embodiment 5
A kind of liquid metal flows accelerator, the accelerator by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium inovulant and
Rare-earth nodularizer forms, and the mass percent of each component is：Ferrosilicon：60%, ferromanganese：20%, ferronickel：4.5%, bismuth：1.5%,
Silicon zirconium inovulant：10%, rare-earth nodularizer：4%.
Preferably, the ferrosilicon selects FeSi75-B, and the ferromanganese selects FeMn68, and the ferronickel selects FeNi20, institute
It is rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 to state rare-earth nodularizer.
Preferably, the addition when accelerator uses is the 5% of total melting weight.
The melt index of the accelerator gray cast iron of different embodiments is added in test on Melt Flow Rate Measurer, and is being injected
Spiral of Archimedes sample injection is carried out on machine, its corresponding helical length is measured, the results are shown in Table 1.
Table 1. adds the melt index and helical length of embodiment 1-5 accelerator gray cast iron
Wherein, comparative example be do not add embodiment 1-5 accelerator gray cast iron, remaining condition all same.
As a result show, addition embodiment 1-5 accelerator can effectively improve the mobility of liquid metal in low smelting heat.
Meanwhile reduce stomata in production process, incompleteness, it is loose the defects of formation, substantially improve the property indices of casting, improve
The yields of enterprise's production, while the amount added is few, service efficiency is high, and use cost is low, increases the economic well-being of workers and staff of enterprise.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the technology of invention
Scheme is modified or equivalent substitution, and without departing from the scope of technical solution of the present invention, it all should cover the power in the present invention
In sharp claimed range.
Claims (7)
1. a kind of liquid metal flows accelerator, it is characterised in that the accelerator is by ferrosilicon, ferromanganese, ferronickel, bismuth, silicon zirconium
Inovulant and rare-earth nodularizer composition, the mass percent of each component are：Ferrosilicon：55-63%, ferromanganese：16-22%, ferronickel：3-
5%, bismuth：0.5-2%, silicon zirconium inovulant：10-18%, rare-earth nodularizer：1-4%.
A kind of 2. liquid metal flows accelerator according to claim 1, it is characterised in that each group in the accelerator
Point mass percent be：Ferrosilicon：62%, ferromanganese：20%, ferronickel：4%, bismuth：1%, silicon zirconium inovulant：11%, rare-earth nodularizer：
2%。
3. a kind of liquid metal flows accelerator according to claim 1, it is characterised in that the ferrosilicon is selected
FeSi75-A or any of FeSi75-B or FeSi75-C.
4. a kind of liquid metal flows accelerator according to claim 1, it is characterised in that the ferromanganese is selected
Any of FeMn64 or FeMn68.
5. a kind of liquid metal flows accelerator according to claim 1, it is characterised in that the ferronickel is selected
Any of FeNi20 or FeNi30.
6. a kind of liquid metal flows accelerator according to claim 1, it is characterised in that the rare-earth nodularizer is
Rare earth ferrosilicomagnesium nodulizer FeSiMg8Re7 or FeSiMg10Re7.
7. a kind of liquid metal flows accelerator according to claim 1, it is characterised in that when the accelerator uses
Addition be total melting weight 3-5%.
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| CN201610542335.5A CN106048395B (en) | 2016-07-12 | 2016-07-12 | A kind of liquid metal flows accelerator |
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| CN201610542335.5A CN106048395B (en) | 2016-07-12 | 2016-07-12 | A kind of liquid metal flows accelerator |
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| CN106048395A CN106048395A (en) | 2016-10-26 |
| CN106048395B true CN106048395B (en) | 2018-01-09 |
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| CN103882282B (en) * | 2014-03-28 | 2016-03-09 | 日月重工股份有限公司 | Hundred tonnes of Ferrite nodular iron casting iron liquid and preparation method thereof |
| CN104498816B (en) * | 2015-01-16 | 2017-01-25 | 河北兴盛机械有限公司 | Grey cast iron with excellent cutting property and production method thereof |
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Effective date of registration: 20230602 Address after: Room 585, floor 5, building 1, Hutai fashion, No. 10, Nanhai Road, Liuhe Town, Taicang City, Suzhou City, Jiangsu Province 215400 Patentee after: Suzhou huienyuan medical device accessories Co.,Ltd. Address before: 215138 Shitian Road, Yangchenghu Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: JIANGSU JIEDI ROBOT Co.,Ltd. |
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