CN210314342U - Double-layer magnesium core nodulizer core-spun yarn - Google Patents
Double-layer magnesium core nodulizer core-spun yarn Download PDFInfo
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- CN210314342U CN210314342U CN201921133273.8U CN201921133273U CN210314342U CN 210314342 U CN210314342 U CN 210314342U CN 201921133273 U CN201921133273 U CN 201921133273U CN 210314342 U CN210314342 U CN 210314342U
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Abstract
The utility model relates to a double-deck magnesium core nodulizer covering yarn relates to covering yarn technical field, concretely relates to double-deck magnesium core nodulizer covering yarn, include and wrap up the layer of rolling up that forms the cavity column by banded steel band package, the layer of rolling up includes outer steel band and inlayer steel band, outer steel band cup joints outside the inlayer steel band, the intussuseption of inlayer steel band is filled with metal magnesium granule, and regional packing between outer steel band and the inlayer steel band has the alloy powder. The utility model discloses simple structure increases the inlayer protection steel band and makes the metal magnesium granule of low melting point be located the heart yearn center, obtains double-deck steel band and the thermal-insulated protection of outer powder, uses the absorption rate of magnesium and reduce the consumption when this kind of technique can improve the alloy balling.
Description
Technical Field
The utility model relates to a core-spun yarn technical field, concretely relates to double-deck magnesium core nodulizer core-spun yarn.
Background
The high-magnesium nodulizer cored wire is one of effective methods for nodulizing ductile iron, and the wire feeding and nodulizing have been promoted in China in recent years, and has the characteristics of less pollution, accurate control, less unit consumption, excellent casting quality and the like.
At present, the traditional magnesium-containing core-spun yarns are about three types, and the magnesium alloy core-spun yarns are melted; a magnesium wire cored wire; magnesium grains and other materials are mechanically mixed with the cored wire. The melted magnesium alloy cored wire consists of a steel belt and magnesium alloy powder wrapped in the steel belt; the inner core magnesium wire core-spun yarn is composed of inoculant particles wrapped by a steel strip and a magnesium wire positioned in the central area of the particles; the mechanically mixed cored wire of magnesium grains and other material is mechanical mixture of magnesium grains and other silicon-based iron alloy powder.
The advantages and disadvantages of the traditional magnesium cored wire are as follows: the high-magnesium alloy cored wire has the advantages of good quality, good uniformity of fused components after smelting, stable quality of produced ductile iron and good use effect. The high magnesium alloy cored wire has the advantages and disadvantages that: the smelting and crushing processes are added to cause pollution to the environment, and the manufacturing period is long and the cost is high; because the content of magnesium is higher, magnesium is seriously oxidized frequently during smelting and crushing, and the content of effective magnesium is reduced; when the single-layer steel strip is used for wrapping the feeding wire, magnesium is easy to melt, vaporize and burn prematurely.
The magnesium wire core-spun yarn has the advantages and disadvantages: the magnesium content of the cored wire in unit length is uniform, the cored wire is not influenced by the fluctuation of particles, and the problem of component segregation is well solved; due to the existence of the magnesium wire, the wire breakage tendency of the cored wire is reduced; the magnesium wire needs production processes of ingot casting, calendering, wire drawing and the like, the price of the magnesium wire is higher, and the cost of the core-spun wire is correspondingly increased.
The mechanical mixed cored wire made of other materials such as magnesium grains has the advantages and the disadvantages that: the mechanical mixing process is simple and the cost is low; in the links of mechanical mixing, transportation, feeding and the like, the magnesium component is easy to segregate, the fluctuation of the magnesium content is large, and the stability of the using effect is poor; the single-layer iron sheet wrapping rigidity difference is easy to break during wire feeding; when the single-layer steel strip is used for wrapping the feeding wire, magnesium is easy to melt, vaporize and burn prematurely.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a can reduce magnesium and passing the vaporization scaling loss of molten iron in-process, can reduce magnesium again at the bottom of the package and molten iron reaction rate, estimate and improve the absorptivity of magnesium in the molten iron to reduce the addition of cored wire, realize clean production. Is a double-layer magnesium core nodulizer core-spun yarn with stable use effect and low manufacturing cost.
The utility model relates to a double-deck magnesium core nodulizer cored wire, include and form the cylindrical layer of involution of cavity by banded steel band involution, the involution layer includes outer steel band and inlayer steel band, outer steel band cup joints outside the inlayer steel band, the inlayer steel band intussuseption is filled with magnesium metal granule or passivation metal magnesium granule, and regional packing between outer steel band and the inlayer steel band has the alloy powder.
Preferably, the inner layer steel belt inner diameter is 2-10 mm.
Preferably, the outer diameter of the outer steel strip is 13-35 mm.
Preferably, the thickness of the inner layer steel strip is 0.2-1 mm.
Preferably, the thickness of the outer steel strip is 0.2-1 mm.
Preferably, the alloy powder is silicon-based mixed powder, and the silicon-based mixed powder is a mixture of silicon, magnesium, lanthanum, cerium, calcium, barium, iron and the like.
The utility model discloses simple structure increases the inlayer protection steel band and makes the metal magnesium granule of low melting point be located the heart yearn center, obtains double-deck steel band and the thermal-insulated protection of outer powder, uses the absorption rate of magnesium and reduce the consumption when this kind of technique can improve the alloy balling.
The utility model discloses with behind the inlayer steel band parcel for the quantitative magnesium metal granule, pack silica-based mixed powder again between ectonexine steel band, it makes the magnesium metal granule of low melting point arrange heart yearn central point in to increase inlayer protection steel band, obtain double-deck steel band and outer powder protection, be difficult to the vaporization loss of burning in the short time, make balling line can reach metallic solution deeper, the successive layer melts, can reduce the vaporization loss of burning of magnesium at the molten iron in-process, can reduce magnesium again at the bottom of the package and molten iron reaction rate, thereby improve the absorption rate of magnesium in the molten iron, realize clean production.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention.
Reference numerals: 1-outer layer steel strip, 2-alloy powder, 3-inner layer steel strip and 4-metal magnesium particles or passivated metal magnesium particles.
Detailed Description
The utility model relates to a double-deck magnesium core nodulizer cored wire, include and form the cylindrical layer of involution of cavity by banded steel band involution, the involution layer includes outer steel band 1 and inlayer steel band 3, outer steel band 1 cup joints outside inlayer steel band 3, 3 intussuseption of inlayer steel band are filled with magnesium metal granule or passivation magnesium metal granule 4, and regional packing between outer steel band 1 and the inlayer steel band 3 has alloy powder 2.
The inner diameter of the inner layer steel belt 3 is 2-10 mm. The outer diameter of the outer layer steel belt 1 is 13-35 mm. The thickness of the inner layer steel belt 3 is 0.2-1 mm. The thickness of the outer layer steel belt 1 is 0.2-1 mm. The alloy powder 2 is silicon-based mixed powder.
The molten iron is inserted from the surface of the molten iron to the bottom at a certain speed through a wire feeding machine, and then spheroidization reaction is carried out. The vaporization point of magnesium is only 1080 ℃, while the temperature of the passing molten iron is up to 1450-; because the surface area of the mixed magnesium powder or magnesium alloy powder is too large, and the magnesium amount participating in the molten iron reaction is too large, the evaporation amount of magnesium is too large, larger magnesium vapor pressure is formed, the escape amount of magnesium from the molten iron is increased, and the oxidation burning loss of magnesium is caused after the magnesium contacts air.
The utility model aims at overcoming the deficiency among the prior art, with quantitative magnesium metal granule or passivation magnesium metal granule 4 with 3 parcel back of inlayer steel band, pack silica-based mixed powder again between 1 and the inlayer steel band of inlayer steel band in the inlayer steel band. The inner layer protection steel belt is added to enable the magnesium grains with low melting point to be arranged at the central part of the core wire, and the double-layer steel belt and the outer layer powder protection are obtained. Not only the drawing strength of the cored wire is enhanced, but also the cored wire is not easy to vaporize in a short time, so that the spheroidized cored wire can reach deeper parts of the metal solution and melt layer by layer. The method can reduce the vaporization burning loss of magnesium in the process of passing through the molten iron and reduce the reaction speed of magnesium with the molten iron at the ladle bottom, thereby improving the absorption rate of magnesium in the molten iron and realizing clean production.
The utility model discloses magnesium grain balling cored wire combines the advantage of various heart yearns, overcomes the not enough of various heart yearns, is one kind and can satisfy the requirement of each item performance in the production, and the effect is stable. But also greatly reduces the production cost.
The manufacturing method is that a set of inner layer steel belt 3 forming and preceding stage metal magnesium particle distributing system is added on the original core-spun yarn equipment, so as to realize shaping, distributing and prepressing of the inner layer steel belt 3, and finish the shaping, distributing and prepressing of the inner layer steel belt with the outer layer alloy powder 2 and the outer layer steel belt 1 at one time.
The utility model discloses simple structure increases the inlayer protection steel band and makes low melting point magnesium metal granule or passivation magnesium metal granule 4 be located the heart yearn center, obtains double-deck steel band and outer powder thermal-insulated protection, uses the absorptivity of magnesium and reduce the consumption when this kind of technique can improve the alloy balling.
The utility model discloses with 3 parcels backs of 3 inlayer steel bands for quantitative magnesium metal granule or passivation magnesium metal granule 4, pack silica-based mixed powder within a definite time in ectonexine steel band again, it makes low-melting magnesium metal granule or passivation magnesium metal granule 4 place heart yearn central point in to increase inlayer protection steel band, obtain double-deck steel band and outer powder protection, be difficult to melt in the short time, make balling line can reach metallic solution depths more, the successive layer melts, can reduce the evaporation loss of burning of magnesium passing the molten iron in-process, can reduce magnesium again at the bottom of the bag and molten iron reaction rate, thereby improve the absorption rate of magnesium in passing the molten iron, realize clean production.
Claims (5)
1. The utility model provides a double-deck magnesium core nodulizer cored wire, includes and wraps up the layer of rolling up that forms the cylindrical package of cavity by banded steel band, its characterized in that, it includes outer steel band (1) and inlayer steel band (3) to wrap up the layer, outer steel band (1) cup joints outside inlayer steel band (3), inlayer steel band (3) intussuseption is filled with metal magnesium granule or passivation metal magnesium granule (4), and regional packing between outer steel band (1) and inlayer steel band (3) has alloy powder (2).
2. The cored wire of the double-layer magnesium core nodulizer according to claim 1, wherein the inner diameter of the inner steel band (3) is 2-10 mm.
3. The cored wire of the double-layer magnesium core nodulizer according to claim 2, wherein the outer diameter of the outer steel band (1) is 13-35 mm.
4. A double-layer mg-core nodulizer cored wire according to claim 3, wherein the thickness of the inner steel band (3) is 0.2-1 mm.
5. The cored wire of the double-layer magnesium core nodulizer according to claim 4, wherein the thickness of the outer steel band (1) is 0.2-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921133273.8U CN210314342U (en) | 2019-07-19 | 2019-07-19 | Double-layer magnesium core nodulizer core-spun yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921133273.8U CN210314342U (en) | 2019-07-19 | 2019-07-19 | Double-layer magnesium core nodulizer core-spun yarn |
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| CN210314342U true CN210314342U (en) | 2020-04-14 |
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| CN201921133273.8U Active CN210314342U (en) | 2019-07-19 | 2019-07-19 | Double-layer magnesium core nodulizer core-spun yarn |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
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2019
- 2019-07-19 CN CN201921133273.8U patent/CN210314342U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075618A (en) * | 2021-11-22 | 2022-02-22 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
| CN114075618B (en) * | 2021-11-22 | 2023-01-06 | 国铭铸管股份有限公司 | Inoculation material for smelting nodular cast iron and preparation process thereof |
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