Silicon-calcium core-spun yarn with good sealing performance

Abstract

The utility model relates to the technical field of silicon-calcium core-spun yarns, and discloses a silicon-calcium core-spun yarn with good sealing performance, which comprises a calcium core layer, an inner wrapping layer is fixedly arranged on the outer surface of the calcium core layer, a metal powder layer is fixedly arranged on the outer surface of the inner wrapping layer, and a shell is fixedly arranged on the outer surface of the metal powder layer. According to the silicon-calcium cored wire with the good sealing performance, the inner wrapping layer is fixedly installed on the outer surface of the calcium core layer, the calcium core layer is wrapped by the inner wrapping layer, then the metal powder layer is fixedly installed on the outer surface of the inner wrapping layer, and the inner wrapping layer is wrapped by the metal powder layer. The calcium core layer wrapped by the inner sheath is further moistureproof and sealed, the outer shell is fixedly installed on the outer surface of the metal powder layer, the metal isolation layers are fixedly installed at the two ends, away from the calcium core layer, of the outer shell, the two ends of the calcium core layer are sealed, and therefore the effect that part of the silicon-calcium core-spun yarn is sealed and stored, and damp is reduced is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium silicon cored wires, in particular to a calcium silicon cored wire with good sealing performance. Background Art

[0002] Calcium silicon cored wire is made of alloy powder wrapped in a strip-shaped steel strip. It is mainly used for the composition adjustment of special elements and the modification of inclusions in refining outside the furnace. The modification treatment can change the shape of inclusions in molten steel, making it easier to float and capture, thereby reducing the number and grade of inclusions in the steel. It is the most commonly used method in the steel industry to improve the purity of molten steel and improve product quality.

[0003] At present, it is found in actual use that calcium silicon cored wire is susceptible to moisture. As the storage time increases, it will cause hydrogenation of molten steel during the wire feeding process, which can easily lead to hydrogen in the steel exceeding the control requirements and producing waste. The increase in hydrogen content in the steel may also lead to quality defects such as white spots and cracks. Since the outer surface of the existing calcium silicon cored wire is relatively smooth, when the friction between the feed wheel and the outer surface of the cored wire is small, the feed wheel cannot effectively drive the calcium silicon cored wire into the crystallizer, resulting in the problem of slippage of the feed wheel of the wire feeder. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a calcium-silicon cored wire with good sealing properties to solve the problem mentioned in the above background technology that the calcium-silicon cored wire is easily affected by moisture in actual use. As the storage time increases, it will cause hydrogenation of the molten steel during the wire feeding process, which can easily lead to the hydrogen in the steel exceeding the control requirements and producing waste products. The increase in hydrogen content in the steel may also lead to quality defects such as white spots and cracks. Since the outer surface of the existing calcium-silicon cored wire is relatively smooth and the friction between the feed wheel and the outer surface of the cored wire is relatively small, the feed wheel cannot effectively drive the calcium-silicon cored wire into the crystallizer, resulting in the problem of slippage of the feed wheel of the wire feeder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a silicon-calcium core wire with good sealing performance, comprising a calcium core layer, an inner sheath fixedly installed on the outer surface of the calcium core layer, a metal powder layer fixedly installed on the outer surface of the inner sheath, an outer shell fixedly installed on the outer surface of the metal powder layer, and metal insulation layers fixedly installed on both ends of the outer shell away from the calcium core layer.

[0006] Preferably, an anti-slip layer is fixedly provided on the outer surface of the shell.

[0007] Preferably, the metal insulation layer and the metal dust are both made of metal powder with low moisture absorption and no pollution to steel, the calcium core layer is made of cored wire alloy powder, and the shell is made of metal that does not pollute steel.

[0008] Preferably, the anti-slip layer is made of a mesh.

[0009] Preferably, both ends of the calcium core layer are fixedly connected to the metal insulating layer through the outer shell.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The calcium silicon cored wire with good sealing performance has an inner sheath fixedly installed on the outer surface of the calcium core layer, the inner sheath wraps the calcium core layer, and then a metal powder layer is fixedly installed on the outer surface of the inner sheath to further moisture-proof and seal the calcium core layer wrapped by the inner sheath, and then an outer shell is fixedly installed on the outer surface of the metal powder layer, and metal insulating layers are fixedly installed at both ends of the outer shell away from the calcium core layer to seal the two ends of the calcium core layer, thereby achieving the effect of sealing and storing a part of the used calcium silicon cored wire to reduce moisture.

[0012] 2. The calcium silicon cored wire with good sealing performance is fixedly provided with an anti-skid layer on the outer surface of the outer shell to avoid the problem that the feed wheel cannot effectively drive the calcium silicon cored wire into the crystallizer when the friction between the feed wheel and the outer surface of the cored wire is small, and the feed wheel of the wire feeder slips, thereby achieving the effect of reducing the uneven composition of the steel billet and affecting the quality of the steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front cross-sectional schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a schematic cross-sectional view of the left side of the structure of the utility model;

[0016] Figure 4 It is a schematic cross-sectional view of the right side of the structure of the utility model.

[0017] In the figure: 1. Calcium core layer; 2. Inner sheath; 3. Metal powder layer; 4. Outer shell; 5. Metal insulation layer; 6. Anti-slip layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1:

[0020] Please refer to Figure 1-4 ,

[0021] A calcium silicon cored wire with good sealing performance comprises a calcium core layer 1, an inner sheath 2 is fixedly installed on the outer surface of the calcium core layer 1, a metal powder layer 3 is fixedly installed on the outer surface of the inner sheath 2, an outer shell 4 is fixedly installed on the outer surface of the metal powder layer 3, and metal insulating layers 5 are fixedly installed at both ends of the outer shell 4 away from the calcium core layer 1.

[0022] Specifically, an inner sheath 2 is fixedly installed on the outer surface of the calcium core layer 1, and the inner sheath 2 wraps the calcium core layer 1. A metal powder layer 3 is fixedly installed on the outer surface of the inner sheath 2 to further make the calcium core layer 1 wrapped by the inner sheath 2 moisture-proof and airtight. An outer shell 4 is fixedly installed on the outer surface of the metal powder layer 3, and metal insulating layers 5 are fixedly installed at both ends of the outer shell 4 away from the calcium core layer 1 to seal the two ends of the calcium core layer 1, thereby achieving the effect of sealing and storing a part of the used calcium silicon core wire to reduce moisture.

[0023] In the embodiment: the metal insulating layer 5 and the metal dust are both made of metal powder with low moisture absorption and no pollution to steel, the calcium core layer 1 is made of cored wire alloy powder, and the outer shell 4 is made of metal that does not pollute steel.

[0024] Specifically, since the metal insulation layer 5 and the metal dust are made of metal powder with low moisture absorption and no pollution to steel, the calcium core layer 1 is made of cored wire alloy powder, and the outer shell 4 is made of metal that does not pollute steel, the overall airtightness of the silicon-calcium cored wire is better.

[0025] In the embodiment: two ends of the calcium core layer 1 are fixedly connected to the metal insulating layer 5 through the outer shell 4 .

[0026] Specifically, because the two ends of the calcium core layer 1 are fixedly connected to the metal insulation layer 5 through the outer shell 4, the body of the calcium silicon cored wire is provided with a plurality of metal insulation layers 5 at intervals along the length direction, and the metal insulation layer 5 sections are evenly distributed along the length direction of the wire body, so that a portion of the calcium silicon cored wire that is in use is sealed to reduce exposure.

[0027] Working principle: an inner sheath 2 is fixedly installed on the outer surface of the calcium core layer 1, the inner sheath 2 wraps the calcium core layer 1, and then a metal powder layer 3 is fixedly installed on the outer surface of the inner sheath 2, the calcium core layer 1 wrapped by the inner sheath 2 is further moisture-proof and sealed, and then an outer shell 4 is fixedly installed on the outer surface of the metal powder layer 3, and metal insulating layers 5 are fixedly installed at both ends of the outer shell 4 away from the calcium core layer 1, to seal the two ends of the calcium core layer 1. Compared with the related art, the utility model provides a calcium-silicon cored wire with good sealing performance, which has the following beneficial effects: thereby achieving the effect of sealing and preserving a part of the used calcium-silicon cored wire to reduce moisture.

[0028] Embodiment 2:

[0029] Please refer to Figure 1-4 ,

[0030] An anti-slip layer 6 is fixedly disposed on the outer surface of the housing 4 .

[0031] Specifically, an anti-skid layer 6 is fixedly provided on the outer surface of the outer shell 4 to prevent the feed wheel from slipping when the friction between the feed wheel and the outer surface of the cored wire is small, and the feed wheel of the wire feeder cannot effectively drive the silicon-calcium cored wire into the crystallizer, thereby reducing the uneven composition of the steel billet and affecting the quality of the steel.

[0032] In the embodiment: the anti-slip layer 6 is made of a mesh.

[0033] Specifically, because the anti-slip layer 6 is made of a mesh, it is easier to press out the mesh during production.

[0034] Working principle: an anti-skid layer 6 is fixedly provided on the outer surface of the outer shell 4 to prevent the feed wheel from being unable to effectively drive the silicon-calcium cored wire into the crystallizer when the friction between the feed wheel and the outer surface of the cored wire is small, causing the feed wheel of the wire feeder to slip. Compared with the related art, the silicon-calcium cored wire with good sealing performance provided by the utility model has the following beneficial effects: thereby achieving the effect of reducing the uneven composition of the steel billet and affecting the quality of the steel.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A calcium silicon cored wire with good sealing performance, comprising a calcium core layer (1), Features: An inner sheath (2) is fixedly mounted on the outer surface of the calcium core layer (1), a metal powder layer (3) is fixedly mounted on the outer surface of the inner sheath (2), an outer shell (4) is fixedly mounted on the outer surface of the metal powder layer (3), and metal insulating layers (5) are fixedly mounted on both ends of the outer shell (4) away from the calcium core layer (1).

2. A calcium silicon cored wire with good sealing performance according to claim 1, Features: An anti-slip layer (6) is fixedly provided on the outer surface of the housing (4).

3. A calcium silicon cored wire with good sealing performance according to claim 1, Features: The metal insulating layer (5) and the metal dust are both made of metal powder with low moisture absorption and no pollution to steel, the calcium core layer (1) is made of cored wire alloy powder, and the outer shell (4) is made of metal that does not pollute steel.

4. A calcium silicon cored wire with good sealing performance according to claim 2, Features: The anti-slip layer (6) is made of a mesh.

5. The calcium silicon cored wire with good sealing performance according to claim 1, Features: The two ends of the calcium core layer (1) are fixedly connected to the metal insulating layer (5) via the outer shell (4).

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