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A reinforced cored wire containing titanium composite alloy and its application in hrb400e rebar

A technology of composite alloy and strengthening package, applied in the field of iron and steel materials, can solve the problems of increased production cost of rebar and difficulty in cost control of production enterprises.

Active Publication Date: 2020-10-27
董新安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a titanium-containing composite alloy reinforced cored wire and its HRB400E in view of the current increase in the quality requirements of the new national standard for rebar, resulting in a substantial increase in the production cost of rebar and difficulties in cost control for production enterprises. Application in rebar

Method used

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  • A reinforced cored wire containing titanium composite alloy and its application in hrb400e rebar
  • A reinforced cored wire containing titanium composite alloy and its application in hrb400e rebar
  • A reinforced cored wire containing titanium composite alloy and its application in hrb400e rebar

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Embodiment Construction

[0032] In order to better explain the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with specific examples. The following examples are only illustrative technical solutions of the present invention, and do not limit the present invention in any form .

[0033] Table 1 below is a list of mass percentage values ​​of chemical components contained in the core powder of the titanium-containing composite alloy reinforced cored wire in Examples 1-5 of the present invention.

[0034] Table 1 Chemical composition of titanium-containing composite alloy reinforced cored wire core powder in Examples 1-5 (Wt, %)

[0035]

[0036] The core powder described in Examples 1-5 is made of titanium nitride, silicon-manganese alloy, silicon nitride, copper powder, iron powder, and silicon-zirconium alloy. During preparation, each raw material is firstly ground into 200 mesh dry powder, After calculatin...

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Abstract

The invention discloses a titanium-contained composite alloy reinforcing core-spun yarn and application to HRB400E thread steel. The titanium-contained composite alloy reinforcing core-spun yarn is prepared by coating core powder on an aluminum strip; the core powder comprises the following components in percentage by mass: 30-35% of Ti, 22-28% of N, 15-20% of Si, 3-8% of Cu, 8-12% of Mn, 1-3% ofFe, and 5-8% of Zr; and the sum of the components is 100%. The titanium-contained composite alloy reinforcing core-spun yarn is applied to the HRB400E thread steel; in the smelting process of molten steel, after the preparation of white slag is finished from a molten steel tank to an LF station, the titanium-contained composite alloy reinforcing core-spun yarn is fed in the molten steel tank; theyarn feeding speed is 5-6 m / min; the feeding quantity is 3 m / t steel; after yarn feeding, a soft blowing mode is switched to; the bottom blowing argon flow is 150-180 L / min; and the soft blowing timeis 3-5 min. The titanium-contained composite alloy reinforcing core-spun yarn achieves a reinforcing effect of stabilizing titanium in the HRB400E thread steel, replaces a reinforcing effect of part of vanadium, greatly reduces the production cost of the thread steel, and achieves the popularization and application prospect in production of other vanadium-contained steel types.

Description

technical field [0001] The invention relates to the technical field of iron and steel materials, in particular to a titanium-containing composite alloy reinforced cored wire and its application in HRB400E threaded steel. Background technique [0002] Rebar is a common name for hot-rolled ribbed steel bars. It is a necessary steel for medium-sized and above-sized building components. It mainly includes three categories of second, third, and fourth grades. more than 200 million tons. [0003] At the beginning of 2018, the new standard GB / T 1499.2-2018 for rebar was released to replace GB / T 1499.2-2007, and it will be enforced on November 1, 2018. The new standard cancels the 335MPa grade steel bar and adds 600MPa grade steel bar; adds the grade with E; appropriately tightens the quality deviation, and clarifies that the quality deviation is not allowed to be retested; adds the provisions of the fatigue test method of the steel bar, it is worth noting that the increase Provis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/00C21C7/06C22C21/02C22C29/16C22C33/04C22C38/02C22C38/04C22C38/12C22C38/14
CPCC21C7/0006C21C7/0056C21C7/06C22C21/02C22C29/16C22C33/04C22C38/002C22C38/02C22C38/04C22C38/12C22C38/14Y02P10/20
Inventor 董新安
Owner 董新安
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