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High-elasticity high-nickel-alloy card clothing steel wire rod and preparation method thereof

An alloy needle and high elasticity technology, applied in the field of high elasticity and high nickel alloy card clothing steel wire and its preparation, can solve the problems of poor compactness, short service life of steel wire, easy dezincification, etc., to overcome the relatively large dispersion of strength, Improve the strength and ductility, promote the effect of nucleation and growth

Active Publication Date: 2021-06-04
江阴市钧益特种钢丝科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing high-carbon steel wires have weak corrosion resistance in humid and weak alkaline environments, and their service life is shorter than that of stainless steel wires and galvanized steel wires
Stainless steel wire has outstanding strength and corrosion resistance, but due to its non-magnetic defect, once the needle breaks, the steel needle falls into the fluff, which will cause great harm to the finishing after fluffing.
The main advantages of galvanized steel wire are corrosion resistance and wear resistance, and the fatigue life is 3-4 times that of ordinary steel wire. However, the current galvanizing process (electro-galvanizing, hot-dip galvanizing) has the following disadvantages: The loss is large, and the performance requirements of the steel wire of the card clothing cannot be met; the disadvantages of electro-galvanizing include: ①The bonding force between the coating and the steel wire matrix is ​​poor, easy to dezincification, and the service life of the steel wire is short; Serious; ③The level of domestic electroplating technology is low, the thickness of steel wire coating is uneven, and the compactness is poor
In terms of composition, the element design of Mn, Cr and Al in high carbon steel is optimized, and the process parameters of wire rod preparation are optimized at the same time to obtain a card clothing steel suitable for deep drawing with good structure performance, excellent surface quality and internal quality Wire rod, but the corrosion resistance of the wire rod made by this invention cannot meet the requirements in the wet weak alkaline environment

Method used

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  • High-elasticity high-nickel-alloy card clothing steel wire rod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing a high-elasticity high-nickel alloy card clothing steel wire rod, according to the following steps:

[0036] (1) The weight percentage of the chemical composition of the wire is as follows: C: 0.6%, Si: 0.1%, Mn: 0.4%, Ni: 2%, Cr: 0.1%, Ce: 0.02%, S: ≤0.005%, P: ≤ 0.005%, the balance is Fe and unavoidable impurity elements. It is smelted in converter or electric furnace, and then refined in refining furnace. During refining, it is combined with synthetic slag to fully deoxidize and remove inclusions. After LF refining, it is matched with VD furnace vacuum treatment for further degassing and removal of inclusions. After refining, rare earth elements are added before VD furnace vacuum treatment, and molten steel is poured. into billets.

[0037] (2) The billet is heated at a rate of 30-32 °C / s to 1100-1150 °C, kept at high temperature for 12 hours, then cooled at a rate of 5-8 °C / s to a deformation temperature of 1000-1050 °C, and kept at high temp...

Embodiment 2

[0048] A preparation method of a high-elasticity high-nickel alloy card clothing steel wire rod, according to the following steps:

[0049] (1) The weight percentage of the chemical composition of the wire is as follows: C: 0.8%, Si: 0.2%, Mn: 0.4%, Ni: 3.2%, Cr: 0.15%, Ce and Y mixture (Ce and Y according to the mass ratio 1:1): 0.01%, S: ≤0.005%, P: ≤0.005%, the balance is Fe and unavoidable impurity elements.

[0050] (4) Prepare materials according to the design composition, use converter or electric furnace for smelting, and then refine in refining furnace. During refining, cooperate with synthetic slag to fully deoxidize and remove inclusions. After LF refining, match VD furnace vacuum treatment to further degas and remove inclusions. After refining, VD furnace vacuum Rare earth elements are added before treatment, molten steel is poured into a billet, and the billet is heated to 1100-1150 °C at a rate of 33-35 °C / s, kept at high temperature for 10-12 hours, and then coo...

Embodiment 3

[0061] A method for preparing a high-elasticity high-nickel alloy card clothing steel wire rod, according to the following steps:

[0062] (1) The weight percentage of the chemical composition of the wire is as follows: C: 0.6%, Si: 0.1%, Mn: 0.4%, Ni: 2%, Cr: 0.1%, Ce: 0.02%, S: ≤0.005%, P: ≤ 0.005%, the balance is Fe and unavoidable impurity elements. It is smelted in converter or electric furnace, and then refined in refining furnace. During refining, it is combined with synthetic slag to fully deoxidize and remove inclusions. After LF refining, it is matched with VD furnace vacuum treatment for further degassing and removal of inclusions. After refining, rare earth elements are added before VD furnace vacuum treatment, and molten steel is poured. into billets.

[0063] (2) The billet is heated at a rate of 30-32 °C / s to 1100-1150 °C, kept at high temperature for 12 hours, then cooled at a rate of 5-8 °C / s to a deformation temperature of 1000-1050 °C, and kept at high temp...

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Abstract

The invention discloses a high-elasticity high-nickel-alloy card clothing steel wire rod. The wire rod comprises the following chemical components of, in percentage by weight, 0.6%-1.2% of C, 0.1%-0.6% of Si, 0.4%-0.7% of Mn, 2%-3.2% of Ni, 0.1%-0.28% of Cr, 0.005%-0.02% of rare earth element, less than or equal to 0.005% of S, less than or equal to 0.005% of P and the balance Fe and inevitable impurity elements. According to an elastic card clothing made of the wire rod, the tensile strength is larger than or equal to 2350 + / - 50 MPa, the total breaking elongation is larger than or equal to 6.0%, the one-direction torsion is larger than or equal to 6000 times / 360 degrees, the yield ratio is larger than or equal to 90%, and the adhesive force is larger than or equal to 1750 N.

Description

technical field [0001] The invention relates to iron-based special wire rods, in particular to a high-elasticity high-nickel alloy card clothing steel wire rod and a preparation method thereof. Background technique [0002] In recent years, the demand for textile raising products has been increasing, resulting in a short supply of raised elastic card clothing. As an important textile carding equipment, the quality of elastic raised card clothing is directly related to the performance of the wire of the card clothing. At present, the commonly used steel wires for card clothing in the domestic market are made of high carbon steel (65Mn, 70#), stainless steel, galvanized steel wire, etc. [0003] Existing high-carbon steel wires have slightly weaker corrosion resistance in humid and weakly alkaline environments, and their service life is shorter than that of stainless steel wires and galvanized steel wires. Stainless steel wire has outstanding strength and corrosion resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/40C22C38/04C22C38/02C22C33/04C21D8/06C21D1/18
CPCC22C38/005C22C38/40C22C38/04C22C38/02C22C33/04C21D8/06C21D1/18
Inventor 黄东王士华
Owner 江阴市钧益特种钢丝科技有限公司
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