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HRB400E high-strength aseismic coiled reinforced bar and production method thereof

A technology of anti-seismic steel bars and production methods, which is applied in the field of metal material processing and forming, can solve the problems of unfavorable cost reduction and efficiency increase, high cost of steel alloys, etc., and achieve the effect of reduced alloy costs and good organizational properties

Inactive Publication Date: 2015-02-18
陕西钢铁集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production of HRB400E disc snails in the industry mostly adopts micro-alloying and hot-rolling processes. The cost of steel alloys produced by this process is relatively high, which is not conducive to enterprises to reduce costs and increase efficiency.

Method used

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  • HRB400E high-strength aseismic coiled reinforced bar and production method thereof
  • HRB400E high-strength aseismic coiled reinforced bar and production method thereof
  • HRB400E high-strength aseismic coiled reinforced bar and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] To prepare Φ6mmHRB400E high-strength anti-seismic steel coils, follow the steps below:

[0051] Step 1, according to weight percentage, weigh the following components: C: 0.20%, Si: 0.30%, Mn: 0.90%, V: 0.015%, S: 0.045%, P: 0.020%, the rest is Fe, each component The sum of the weight percentages is 100%; where V is added through the VN16 alloy, and the VN16 alloy weighs the following components according to the weight percentage: N: 14%, C: 6%, the rest is V, and the impurity content is controlled: P: 0.06 %, S: 0.1%, the sum of the weight percentages of each component is 100%;

[0052] Step 2, melting the C, Si, Mn, V, S, P and Fe weighed in step 1 as molten steel to cast a billet;

[0053] Step 3, sending the cast billet into the soaking section furnace for heating, the heating temperature is 1060°C, and the heating time is 80 minutes;

[0054] Step 4: Dephosphorize and cool the heated billet with high-pressure water, and then carry out rough rolling, intermediate ...

Embodiment 2

[0064] To prepare Φ8mmHRB400E high-strength anti-seismic steel coils, follow the steps below:

[0065] Step 1, according to weight percentage, weigh the following components: C: 0.25%, Si: 0.40%, Mn: 1.1%, V: 0.013%, S: 0.042%, P: 0.038%, the rest is Fe, each component The sum of the weight percentages is 100%; where V is added through the VN16 alloy, and the VN16 alloy weighs the following components according to the weight percentage: N: 16%, C: 5%, the rest is V, and the impurity content is controlled: P: 0.03 %, S: 0.1%, the sum of the weight percentages of each component is 100%;

[0066] Step 2, melting the C, Si, Mn, V, S, P and Fe weighed in step 1 as molten steel to cast a billet;

[0067] Step 3, sending the cast billet into the soaking section furnace for heating, the heating temperature is 1053°C, and the heating time is 60 minutes;

[0068] Step 4: Dephosphorize and lower the temperature of the heated steel billet with high-pressure water, and then carry out rou...

Embodiment 3

[0078] To prepare Φ10mmHRB400E high-strength anti-seismic reinforcement coils, follow the steps below:

[0079] Step 1, according to weight percentage, weigh the following components: C: 0.24%, Si: 0.32%, Mn: 0.95%, V: 0.010%, S: 0.024%, P: 0.028%, the rest is Fe, each component The sum of the weight percentages is 100%; where V is added through the VN16 alloy, and the VN16 alloy weighs the following components according to the weight percentage: N: 18%, C: 4.9%, and the rest is V, and the impurity content is controlled: P: 0.06 %, S: 0.04%, the sum of the weight percentages of each component is 100%;

[0080] Step 2, melting the C, Si, Mn, V, S, P and Fe weighed in step 1 as molten steel to cast a billet;

[0081] Step 3, sending the cast billet into the soaking section furnace for heating, the heating temperature is 1040°C, and the heating time is 70 minutes;

[0082] Step 4: Dephosphorize and lower the temperature of the heated steel billet with high-pressure water, and t...

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Abstract

The invention discloses an HRB400E high-strength aseismic coiled reinforced bar and a production method thereof. The HRB400E high-strength aseismic coiled reinforced bar is composed of the following components in percentage by weight: 0.20-0.25% of C, 0.30-0.40% of Si, 0.90-1.10% of Mn, 0.010-0.015% of V and the balance of Fe, wherein the content of impurities is controlled so that S is less than or equal to 0.045% and P is less than or equal to 0.045%. The HRB400E coiled reinforced bar produced by use of the production method of the HRB400E high-strength aseismic coiled reinforced bar is excellent in structure properties; besides, the alloy cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of metal material processing and forming, and relates to a HRB400E high-strength anti-seismic steel bar screw, and also relates to a production method of the HRB400E high-strength anti-seismic steel bar screw. Background technique [0002] In recent years, as the steel situation has become more serious, ideas such as "reducing costs and increasing efficiency, controlling losses and turning losses, improving quality and reducing consumption, and transforming and upgrading" have become the main guiding ideology for various iron and steel enterprises to deal with the cold winter of steel. At present, the production of HRB400E disc snails in the industry mostly adopts micro-alloying and hot-rolling processes. The cost of steel alloys produced by this process is relatively high, which is not conducive to enterprises to reduce costs and increase efficiency. Contents of the invention [0003] The purpose of the p...

Claims

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Application Information

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IPC IPC(8): C22C38/12C22C38/60C22C33/04C21D8/08
Inventor 房金乐支旭波
Owner 陕西钢铁集团有限公司
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