CN215209536U

CN215209536U - Novel core-spun yarn

Info

Publication number: CN215209536U
Application number: CN202120518870.3U
Authority: CN
Inventors: 付建勋; 曹晨巍
Original assignee: Shangda New Materials Taizhou Research Institute Co ltd; University of Shanghai for Science and Technology
Current assignee: Shangda New Materials Taizhou Research Institute Co ltd; University of Shanghai for Science and Technology
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-12-17
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a novel core-spun yarn, which comprises an outer coating layer, a first inner coating layer and a second inner coating layer; the first inner cladding layer and the second inner cladding layer are both positioned in the outer cladding layer, the first inner cladding layer is internally provided with a first core layer, and the second inner cladding layer is provided with a second core layer; and a third core layer is filled among the first inner cladding layer, the second inner cladding layer and the outer cladding layer. The utility model discloses a core-spun yarn makes magnesium-silicon alloy wire and the chromium magnesium alloy wire parcel that contains magnesium in the middle of outer iron powder for the core-spun yarn obtains the thermal-insulated protection of double-deck steel band and outer powder, can be fine part magnesium and industry iron powder, plays the effect that further prevents the magnesium passivation, can avoid influencing the modification effect of magnesium powder simultaneously.

Description

Novel core-spun yarn

Technical Field

The utility model relates to a steel smelting technical field, concretely relates to novel cored wire.

Background

At present, in the process of metal smelting, during wire feeding, cored wires need to be fed into the deep part of molten metal, the currently used cored wires are all formed by wrapping metal powder by a single-layer steel belt, and after the cored wires enter a steel furnace, the cored wires are fused without reaching the bottom of the molten metal due to the high temperature of molten steel, so that the metal powder is gasified or floats on the surface of the molten metal, particularly, magnesium metal powder is gasified and burned, magnesium is passivated, and the modification effect is influenced

In conclusion, in order to produce magnesium-containing medium-carbon martensite air valve steel, the size, distribution and form of carbide in the steel are controlled by using magnesium, the segregation condition is effectively improved, the reaction is not severe in the wire feeding process, the magnesium yield is high, the component control of steel is not influenced, the passivation of magnesium is avoided, and the research and development of a novel cored wire are urgently needed.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a novel core-spun yarn.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a novel core-spun yarn, which comprises an outer coating layer, a first inner coating layer and a second inner coating layer;

the first inner cladding layer and the second inner cladding layer are both positioned in the outer cladding layer, the first inner cladding layer is internally provided with a first core layer, and the second inner cladding layer is provided with a second core layer;

the outer diameters of the first inner layer coating layer and the second inner layer coating layer are 2-6 mm;

and a third core layer is filled among the first inner cladding layer, the second inner cladding layer and the outer cladding layer.

In an embodiment of the present invention, the first core layer is a magnesium-silicon alloy powder layer or a magnesium-silicon alloy wire;

the second core layer is a chromium-magnesium alloy powder layer or a chromium-magnesium alloy wire;

the third core layer is an iron powder layer.

In one embodiment of the present invention, the outer layer coating layer is made of iron sheet, and the thickness of the iron sheet is 0.3-0.5 mm.

In one embodiment of the present invention, the outer diameter of the outer coating layer is 9-13 mm.

In an embodiment of the present invention, the outer layer coating layer is made of iron sheet, and the hasp is folded at the interface of the iron sheet and at the two end edges of the iron sheet.

In one embodiment of the present invention, the thickness of the first inner coating layer and the second inner coating layer is made of iron sheet, and the thickness of the iron sheet is 0.4-0.6 mm;

the first inner cladding layer and the second inner cladding layer can also adopt a magnesium-silicon alloy cored wire or a chrome-magnesium alloy cored wire.

In one embodiment of the present invention, the outer diameter of the first inner coating layer and the second inner coating layer is 4-6 mm.

In one embodiment of the present invention, the core-spun yarn is Chinese, and the weight of the core material per meter is 400-600 g.

The utility model has the advantages of as follows:

the utility model discloses a core-spun yarn makes magnesium-silicon alloy powder and the cladding of chromium magnesium alloy powder that contain magnesium in the centre of heart yearn for the core-spun yarn obtains the thermal-insulated protection of double-deck steel band and outer powder, can be fine parts magnesium and industry iron powder, plays the effect that further prevents the magnesium passivation, can avoid influencing the modification effect of magnesium powder simultaneously.

The utility model discloses a cored wire has avoided the metal powder to float the defect on molten metal surface to a certain extent, can carry out good magnesium modification to carbide in well carbon martensite air valve steel, has better reaction efficiency, can react as far as, and to a great extent has avoided the waste, reacts more even, stable moreover.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural view of a core-spun yarn provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an outer cladding layer provided by an embodiment of the present invention;

in the figure: 100-outer coating layer; 110-a third core layer; 120-a hasp; 200-a second inner cladding layer; 210-a second core layer; 300-a first inner cladding layer; 310 — first core layer.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the present invention provides a novel core-spun yarn, which includes an outer layer coating layer 100, a first inner layer coating layer 300, and a second inner layer coating layer 200; the first inner cladding layer 300 and the second inner cladding layer 200 are both located within the outer cladding layer 100, the first inner cladding layer 300 having a first core layer 310 therein, the second inner cladding layer 200 having a second core layer 210; the third core layer 110 is filled between the first inner clad layer 300, the second inner clad layer 200 and the outer clad layer 100. The first core layer 310 is a magnesium-silicon alloy powder layer or a magnesium-silicon alloy wire; the second core layer 210 is a chrome-magnesium alloy powder layer or a chrome-magnesium alloy wire; the third core layer 110 is an iron powder layer. The utility model discloses a cored wire makes magnesium-containing magnesium silicon alloy powder or magnesium silicon alloy wire, and chromium magnesium alloy powder or chromium magnesium alloy wire parcel are in the centre of heart yearn for the cored wire obtains the thermal-insulated protection of double-deck steel band and outer powder, can be fine part magnesium and industry iron powder, play the effect that further prevents the magnesium passivation, can avoid influencing the modification effect of magnesium powder simultaneously. The utility model discloses a structure is with behind the inner coating parcel for quantitative magnesium silicon, chrome magnesium alloy powder, packs industry iron powder again between inner coating and outer coating 100, increases inlayer protection steel band, makes the alloy powder be located within the heart yearn, finally, obtains by outer coating 100, inlayer coating and the protection of industry iron powder, has avoided the easy passivation of magnesium powder to cause the inclusion to increase, and the modification effect is unsatisfactory. The utility model discloses a core-spun yarn makes the evaporation loss of burning of being difficult to in the short time after feeding the line, makes the core-spun yarn can reach the more depths of metal solution, and the successive layer melts, can reduce the evaporation 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 to improve the yield of magnesium in the modification process, reduce cost.

Wherein, the magnesium-silicon alloy powder is magnesium-silicon alloy containing 25-40% of magnesium, the chromium-magnesium alloy powder is chromium-magnesium alloy containing 30-40% of magnesium, and the iron powder layer is industrial pure iron powder.

In the utility model, the outer layer coating layer 100 is made of iron sheet with the thickness of 0.3-0.5 mm. The outer diameter of the outer layer coating layer 100 is 9-13mm, and the outer diameters of the first inner layer coating layer and the second inner layer coating layer are 4-6 mm. Outer cladding layer 100 adopts the iron sheet, and at the kneck of iron sheet, at the both ends reason folding hasp of iron sheet, through folding hasp 120, further strengthened the fine and close degree of cored wire, increased the hardness of cored wire, further improved the feeding degree of cored wire. The thicknesses of the first inner layer coating layer and the second inner layer coating layer are made of iron sheets, the thickness of the iron sheets is 0.4-0.6mm, and the weight of the core material per meter in the cored wire is 400-600 g.

As an alternative embodiment, a magnesium-silicon alloy cored wire or a chrome-magnesium alloy cored wire may be used for the first inner clad layer and the first core layer. The second inner clad layer and the second core layer can adopt a magnesium-silicon alloy cored wire or a chrome-magnesium alloy cored wire.

The utility model discloses core-spun yarn, its simple structure increases the inlayer coating, and the alloy powder that contains the magnesium powder that makes is located the heart yearn center, obtains outer coating 100 and the thermal-insulated protection of inlayer coating, uses the violent degree of reaction when this kind of technique can improve the modification, improves the yield of magnesium and reduces the consumption.

The utility model discloses simple structure increases inlayer protection steel band and makes the alloy powder be located the heart yearn center, obtains double-deck steel band and the thermal-insulated protection of outer powder, the utility model discloses a cored wire can improve the violent degree of reaction when the modification, improve the yield of magnesium and reduce consumption.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The novel cored wire is characterized by comprising an outer coating layer, a first inner coating layer and a second inner coating layer;

2. A novel cored wire of claim 1,

the first core layer is a magnesium-silicon alloy powder layer or an alloy wire;

the second core layer is a chromium-magnesium alloy powder layer or an alloy wire;

the third core layer is an iron powder layer.

3. A novel cored wire of claim 1,

the outer coating layer is made of an iron sheet, and the thickness of the iron sheet is 0.3-0.5 mm.

4. A novel cored wire of claim 1,

the outer diameter of the outer coating layer is 9-13 mm.

5. A novel cored wire of claim 1,

the outer coating layer is made of iron sheet, and buckles are folded at the edges of two ends of the iron sheet at the joints of the iron sheet.

6. A novel cored wire of claim 1,

the thicknesses of the first inner layer coating layer and the second inner layer coating layer are made of iron sheets, and the thickness of each iron sheet is 0.4-0.6 mm.

7. A novel cored wire of claim 1,

the outer diameters of the first inner layer coating layer and the second inner layer coating layer are 2-6 mm.

8. A novel cored wire of claim 1,

in the cored wire, the weight of the core material per meter is 400-600 g.