CN107794437A - With two kinds of same stove molten iron casting and the method for above unlike material cast iron products - Google Patents
With two kinds of same stove molten iron casting and the method for above unlike material cast iron products Download PDFInfo
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- CN107794437A CN107794437A CN201710981255.4A CN201710981255A CN107794437A CN 107794437 A CN107794437 A CN 107794437A CN 201710981255 A CN201710981255 A CN 201710981255A CN 107794437 A CN107794437 A CN 107794437A
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- molten iron
- iron
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- liquid
- stoste
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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
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- 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
- C21C1/08—Manufacture of cast-iron
-
- 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
-
- 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
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of method of cast with same stove molten iron two kinds and above unlike material cast iron products, comprise the following steps：Step 1: the stove molten iron stoste of melting one, controls each component content and molten iron stoste temperature in molten iron stoste；Step 2: connecing partial molten iron stoste as A liquid using A process containers, the corresponding material of processing A liquid, after A liquid processing terminates, A products of casting to obtain are previously added in A process containers；Step 3: similarly, B liquid is used as using B process containers socket part point or remaining molten iron stoste, the corresponding material for handling B liquid, after B liquid processing terminates, B products of casting to obtain are previously added in B process containers.This method quickly can be developed or produced the cast iron products of two kinds and above unlike material using same stove molten iron, can greatly save cast iron melting cost, shorten the sample development experiments cycle, improve company's benefit.
Description
Technical field
The present invention relates to casting technology field, and in particular to a kind of same stove molten iron casting two kinds and above unlike material
The method of cast iron products.
Background technology
Traditional spheroidal graphite cast-iron or vermicular cast iron casting mode are electric furnace list bag nodularization or compactedization mode, and same stove molten iron is only
It can cast and produce a kind of product of the trade mark, so not only cast iron melting cost is high, and the sample development experiments cycle is grown, and is unfavorable for
Improve research and development of products progress and reduce enterprise's production cost.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of beneficial to saving cast iron melting cost, shortening sample exploitation examination
The method for testing cast with same stove molten iron two kinds and the above unlike material cast iron products in cycle.
In order to solve the above technical problems, the technical scheme is that：
With two kinds of same stove molten iron casting and the method for above unlike material cast iron products, comprise the following steps：
Step 1: the stove molten iron stoste of melting one, controls each component content and molten iron stoste temperature in molten iron stoste；
Step 2: connecing partial molten iron stoste as A liquid using A process containers, processing A liquid is previously added in A process containers
Corresponding material, after A liquid processing terminates, A products of casting to obtain；
Step 3: similarly, B liquid is used as using B process containers socket part point or remaining molten iron stoste, in B process containers in advance
First add the corresponding material of processing B liquid, after B liquid processing terminates, B products of casting to obtain.
As one of embodiment, in step 2, A liquid processing methods are：In terms of A liquid weight, in nodularization bag in advance
Ferrosilicon, 0.2% iron filings are bred in 1.4~1.5% nodulizers of addition, 0.8~1.0%, and nodulizer is put into nodularization bag nodularization groove most
Low layer, it is sequentially placed above nodulizer and breeds ferrosilicon, iron filings, topmost place into one block of semicircle steel plate and cover, molten iron stoste is not
Steel plate can directly be impacted, it is necessary to impact the opposite of steel plate；Nodularization carries out processing of skimming after terminating, afterwards thermometric, A productions of casting to obtain
Product.
Preferably, in step 2, nodulizer Task-size Controlling between 10~30mm, using preceding heated baking to 200~
300 degree；Ferrosilicon Task-size Controlling is bred between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings toast before using
To 200~300 degree, steel plate thickness is between 3~6mm.
As one of embodiment, in step 3, B liquid processing methods are：In terms of B liquid weight, in compactedization bag in advance
Ferrosilicon, 0.2% iron filings are bred in 0.25~0.8% vermiculizer of addition, 0.85~1.2%, and vermiculizer is put into compactedization bag compactedization groove
Lowermost layer, it is sequentially placed above vermiculizer and breeds ferrosilicon, iron filings, topmost place into one block of semicircle steel plate and cover, molten iron stoste
Steel plate can not directly be impacted, it is necessary to impact the opposite of steel plate；Compactedization carries out processing of skimming after terminating, afterwards thermometric, B productions of casting to obtain
Product.
Preferably, in step 3, vermiculizer Task-size Controlling between 10~30mm, using preceding heated baking to 200~
300 degree；Ferrosilicon Task-size Controlling is bred between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings toast before using
To 200~300 degree, steel plate thickness is between 3~6mm.
By adopting the above-described technical solution, this method has the advantages that：It can be cast using same stove molten iron
Two kinds of production and the cast iron products of above unlike material (such as spheroidal graphite cast-iron and vermicular cast iron), can not only greatly save molten iron and melt
This is smelt, shortens the sample development experiments cycle, improves company's benefit, and the nodularization effect of two kinds of cast iron products can be ensured
Or vermiculation effect, improve properties of product.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the process chart of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the present invention is expanded on further.In the following detailed description, only explanation is passed through
Mode describes some one exemplary embodiments of the present invention.Undoubtedly, it is described below inherently illustrative, rather than
For limiting scope of the claims
Embodiment 1
With reference to figure 1, the method for cast with same stove molten iron two kinds and above unlike material cast iron products, including following step
Suddenly：
Step 1: with the molten iron stoste of 2 tons of one stove of medium-frequency induction furnace melting, the weight of each composition in molten iron stoste is controlled
Percentage composition is C 3.8~4.0%；Si 1.3~1.6%；Mn 0.2~0.8%；P≤0.06%；S≤0.04%；Remaining is
Fe；By molten iron stoste temperature control at 1480~1540 degree；
Step 2: connect 1 ton of molten iron stoste by the use of the nodularization bag of 1.5 tons of capacity carries out spheroidising as A liquid；At A liquid nodularizations
Reason method is：In terms of A liquid weight, 1.4% nodulizer is previously added in nodularization bag, 0.8% breeds ferrosilicon, 0.2% iron filings, also may be used
Material necessary to adding other techniques；Nodulizer is put into nodularization bag nodularization groove lowermost layer, floated to prevent nodulizer, and make it
Slowly effect carries out spheroidising, beneficial to the absorptivity for improving nodulizer, increases nodularization effect, improves Oxygen potential, lifts product
Performance；It is sequentially placed above nodulizer and breeds ferrosilicon, iron filings, iron filings are covered in can increases compactness above, and delay nodularization is anti-
Between seasonable, strengthen nodularization and pregnant effect；Topmost place into one block of semicircle steel plate and cover, steel plate thickness between 3~6mm,
Molten iron stoste can not directly impact steel plate, it is necessary to the opposite of steel plate be impacted, because the key of spheroidizing reacion control is the absorption of magnesium
Rate, temperature is high, and reaction is fierce, and the time is short, and magnesium scaling loss is more, and nodularization effect is poor；Temperature is low, reacting balance, time length, magnesium absorption rate
Height, nodularization effect is good, and it not only promotes graphitization, prevents free cementite and spoken parts in traditional operas from occurring, and contributes to nodularization, and makes stone
Ink becomes more tiny, more rounding, is evenly distributed, so as to improve the mechanical property of spheroidal graphite cast-iron；If molten iron stoste directly impacts steel
Plate, spheroidizing reacion is carried out with nodulizer in advance, abnormal nodularizing, nodularization effect can be caused bad；And if be directly added into molten iron stoste,
Magnesium (nodulizer) will float on liquid level and seethe with excitement immediately, and this not only reduces the absorptivity of magnesium, also not safe enough；Nodularization terminates laggard
Row takes off Slag treatment, typically beats slag three times, afterwards thermometric, A products of casting to obtain, time control was completed within 10 minutes；
In this step, nodulizer Task-size Controlling is between 10~30mm, using preceding heated baking to 200~300 degree；Breed
Ferrosilicon Task-size Controlling is between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to 200~300
Degree, to remove nodulizer, breed ferrosilicon and iron filings moisture impurity in itself, the gas amount of bringing into molten iron is reduced, so as to improve
Molten steel quality.
Step 3: connect remaining 1 ton of molten iron stoste by the use of compactedization bag carries out creepage rate as B liquid；B liquid creepage rate methods
For：In terms of B liquid weight, it is previously added 0.35% vermiculizer in compactedization bag, 0.85% breeds ferrosilicon, 0.2% iron filings, by vermiculizer
Compactedization bag compactedization groove lowermost layer is put into, is floated to prevent vermiculizer, and it is slowly acted on carry out creepage rate, beneficial to raising compactedization
The absorptivity of agent, increase vermiculation effect, improve nodulizing rate, lift properties of product；It is identical with step 2 action principle, on vermiculizer
Face, which is sequentially placed, breeds ferrosilicon, iron filings, topmost places into one block of semicircle steel plate and covers, steel plate thickness is between 3~6mm, iron
Water stoste can not directly impact steel plate, it is necessary to impact the opposite of steel plate；Compactedization carries out processing of skimming after terminating, and thermometric, is poured afterwards
B products are cast to obtain, time control was completed within 10 minutes.
Equally, in this step, vermiculizer Task-size Controlling uses preceding heated baking to 200~300 between 10~30mm
Degree；Ferrosilicon Task-size Controlling is bred between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to
200~300 degree, to remove vermiculizer, breed ferrosilicon and iron filings moisture impurity in itself, the gas amount of bringing into molten iron is reduced,
So as to improve molten steel quality.
Certainly, the step two in this method and step 3 order in no particular order, can also be first by partial molten iron stoste compactedization
Processing, then by another part molten iron stoste spheroidising.
Embodiment 2
With two kinds of same stove molten iron casting and the method for above unlike material cast iron products, comprise the following steps：
Step 1: with the molten iron stoste of 2 tons of one stove of medium-frequency induction furnace melting, the weight of each composition in molten iron stoste is controlled
Percentage composition is C 3.9%；Si 1.4%；Mn 0.4~0.6%；P≤0.06%；S≤0.04%；Remaining is Fe；By molten iron
Stoste temperature control is at 1480~1540 degree；
Step 2: connect 1 ton of molten iron stoste by the use of the nodularization bag of 1.5 tons of capacity carries out spheroidising as A liquid；At A liquid nodularizations
Reason method is：In terms of A liquid weight, 1.5% nodulizer is previously added in nodularization bag, 1.0% breeds ferrosilicon, 0.2% iron filings, also may be used
Material necessary to adding other techniques；It is sequentially placed above nodulizer and breeds ferrosilicon, iron filings, topmost places into one piece of semicircle
Steel plate covers, and for steel plate thickness between 3~6mm, molten iron stoste can not directly impact steel plate, it is necessary to impact the opposite of steel plate；Ball
Change carries out processing of skimming after terminating, and typically beats slag three times, afterwards thermometric, A products of casting to obtain, and time control is complete within 10 minutes
Into；
In this step, nodulizer Task-size Controlling is between 10~30mm, using preceding heated baking to 200~300 degree；Breed
Ferrosilicon Task-size Controlling is between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to 200~300
Degree, to remove nodulizer, breed ferrosilicon and iron filings moisture impurity in itself, the gas amount of bringing into molten iron is reduced, so as to improve
Molten steel quality.
Step 3: connect remaining 1 ton of molten iron stoste by the use of compactedization bag carries out creepage rate as B liquid；B liquid creepage rate methods
For：In terms of B liquid weight, 0.7% vermiculizer is previously added in compactedization bag, 1.1% breeds ferrosilicon, 0.2% iron filings, above vermiculizer
It is sequentially placed and breeds ferrosilicon, iron filings, topmost places into one block of semicircle steel plate and cover, steel plate thickness is between 3~6mm, molten iron
Stoste can not directly impact steel plate, it is necessary to impact the opposite of steel plate；Compactedization carries out processing of skimming after terminating, afterwards thermometric, casting
B products are obtained, time control was completed within 10 minutes.
Equally, in this step, vermiculizer Task-size Controlling uses preceding heated baking to 200~300 between 10~30mm
Degree；Ferrosilicon Task-size Controlling is bred between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to
200~300 degree, to remove vermiculizer, breed ferrosilicon and iron filings moisture impurity in itself, the gas amount of bringing into molten iron is reduced,
So as to improve molten steel quality.
This method is by reasonable compatibility and technology controlling and process, pioneeringly using same stove molten iron casting two kinds of unlike materials of production
The cast iron products of (such as spheroidal graphite cast-iron, vermicular cast iron), is saved greatly cast iron melting cost, shortens sample development experiments week
Phase, company's benefit is improved, suitable for wide popularization and application.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the scope of the present invention.Strictly according to the facts
It is spheroidal graphite cast-iron to apply A products in example, and B products are vermicular cast iron, are only for example, and can also use different spheroidising things certainly
Material, obtain the spheroidal graphite cast-iron of the different trades mark；Similarly, different creepage rate materials can also be used, obtains the compacted of the different trades mark
Black cast iron.Molten iron stoste is operated for " pouring method " in embodiment, and thinking of the present invention can also be used certainly for other method；Only
Similar to need to handle outside stove and cast iron materials that original iron melt composition is more or less the same, can use the method, quickly develop two
The product of kind and the above；Any those skilled in the art, it is made on the premise of the design of the present invention and principle is not departed from
Equivalent variations and modification, the scope of protection of the invention all should be belonged to.
Claims (6)
1. the method for cast with same stove molten iron two kinds and above unlike material cast iron products, it is characterised in that including following step
Suddenly：
Step 1: the stove molten iron stoste of melting one, controls each component content and molten iron stoste temperature in molten iron stoste；
Step 2: connecing partial molten iron stoste as A liquid using A process containers, the phase of processing A liquid is previously added in A process containers
After answering material, A liquid processing to terminate, A products of casting to obtain；
Step 3: similarly, B liquid is used as using B process containers socket part point or remaining molten iron stoste, is added in advance in B process containers
Enter to handle the corresponding material of B liquid, after B liquid processing terminates, B products of casting to obtain.
2. the method for cast as claimed in claim 1 with same stove molten iron two kinds and above unlike material cast iron products, it is special
Sign is, in step 2, A liquid processing methods are：In terms of A liquid weight, be previously added in nodularization bag 1.4~1.5% nodulizers,
0.8~1.0% breeds ferrosilicon, 0.2% iron filings, and nodulizer is put into nodularization bag nodularization groove lowermost layer, put successively above nodulizer
Put and breed ferrosilicon, iron filings, topmost place into one block of semicircle steel plate and cover, molten iron stoste can not directly impact steel plate, it is necessary to rush
Hit the opposite of steel plate；Nodularization carries out processing of skimming after terminating, afterwards thermometric, A products of casting to obtain.
3. the method for cast as claimed in claim 2 with same stove molten iron two kinds and above unlike material cast iron products, it is special
Sign is：In step 2, nodulizer Task-size Controlling is between 10~30mm, using preceding heated baking to 200~300 degree；Breed
Ferrosilicon Task-size Controlling is between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to 200~300
Degree.
4. the method for cast as claimed in claim 1 with same stove molten iron two kinds and above unlike material cast iron products, it is special
Sign is, in step 3, B liquid processing methods are：In terms of B liquid weight, compactedization bag in be previously added 0.25~0.8% vermiculizer,
0.85~1.2% breeds ferrosilicon, 0.2% iron filings, and vermiculizer is put into compactedization bag compactedization groove lowermost layer, put successively above vermiculizer
Put and breed ferrosilicon, iron filings, topmost place into one block of semicircle steel plate and cover, molten iron stoste can not directly impact steel plate, it is necessary to rush
Hit the opposite of steel plate；Compactedization carries out processing of skimming after terminating, afterwards thermometric, B products of casting to obtain.
5. the method for cast as claimed in claim 4 with same stove molten iron two kinds and above unlike material cast iron products, it is special
Sign is：In step 3, vermiculizer Task-size Controlling is between 10~30mm, using preceding heated baking to 200~300 degree；Breed
Ferrosilicon Task-size Controlling is between 5~10mm, using preceding heated baking to 200~300 degree；Iron filings are using being preceding baked to 200~300
Degree.
6. the method for cast with same stove molten iron two kinds and the above unlike material cast iron products as described in claim 2 or 4, its
It is characterised by：Steel plate thickness is between 3~6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981255.4A CN107794437A (en) | 2017-10-20 | 2017-10-20 | With two kinds of same stove molten iron casting and the method for above unlike material cast iron products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981255.4A CN107794437A (en) | 2017-10-20 | 2017-10-20 | With two kinds of same stove molten iron casting and the method for above unlike material cast iron products |
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| Publication Number | Publication Date |
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| CN107794437A true CN107794437A (en) | 2018-03-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814304A (en) * | 2019-12-03 | 2020-02-21 | 西安瑞森金属复合材料有限公司 | Method for producing vermicular cast iron |
| CN111809014A (en) * | 2020-07-03 | 2020-10-23 | 河北华北柴油机有限责任公司 | Method for smelting heterogeneous cast iron by medium-frequency electric furnace in same furnace |
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| CN105568123A (en) * | 2015-12-21 | 2016-05-11 | 青特集团有限公司 | Manufacturing method of vermicular graphite cast-iron brake drum |
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| JPS5763659A (en) * | 1980-10-02 | 1982-04-17 | Metal Res Corp:Kk | Vermicular graphite cast iron containing partially hyper-eutectoid spheroidal graphite |
| US4545817A (en) * | 1982-03-29 | 1985-10-08 | Elkem Metals Company | Alloy useful for producing ductile and compacted graphite cast irons |
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| CN110814304A (en) * | 2019-12-03 | 2020-02-21 | 西安瑞森金属复合材料有限公司 | Method for producing vermicular cast iron |
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| CN111809014A (en) * | 2020-07-03 | 2020-10-23 | 河北华北柴油机有限责任公司 | Method for smelting heterogeneous cast iron by medium-frequency electric furnace in same furnace |
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