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Wheel steel and preparation method as well as wheel thereof

A wheel steel and wheel technology, applied in the field of wheel steel and its preparation, can solve the problems of low strength and toughness of wheel steel, and achieve the effects of excellent performance, high strength and toughness

Inactive Publication Date: 2010-06-16
PANGANG GROUP RESEARCH INSTITUTE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a wheel steel with higher strength and toughness in order to overcome the defects of low strength and toughness of the wheel steel provided by the prior art

Method used

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  • Wheel steel and preparation method as well as wheel thereof
  • Wheel steel and preparation method as well as wheel thereof

Examples

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preparation example Construction

[0013] The present invention also provides a method for preparing wheel steel, wherein the method includes smelting molten steel and refining outside the furnace, and the smelting molten steel sequentially includes a blowing step and an alloying step, and in the alloying step carbonaceous materials, Deoxidizer, ferromanganese alloy and ferrotitanium alloy are added into the molten iron, and the molten steel obtained in this step is: based on the total weight of molten steel, C 0.05-0.11% by weight, Si0.009-0.014% by weight, Mn 1.0- 1.25% by weight, Ti 0.009-0.03% by weight; one or more of aluminum, carbonaceous materials, ferromanganese alloys and ferro-titanium alloys are added during refining outside the furnace, and then silicon-calcium alloys and / or calcium-iron alloys are added , so that in the molten steel obtained in this step, the content of C, Si, Mn, Ti, Ca and acid-soluble Al is in the range of the wheel steel provided by the present invention. Generally, the silico...

Embodiment 1-6

[0025] These examples are used to illustrate the wheel steel provided by the present invention.

[0026] (1) Smelting molten steel:

[0027] Desulfurized molten iron is used to smelt the wheel steel, and when the C content in the molten steel is 0.03-0.08% by weight (the specific values ​​controlled by each embodiment are shown in Table 1), the steel is immediately tapped into the ladle. When tapping, first add 50 kg of deoxidizer aluminum block at the bottom of the ladle, then add deoxidizer Al-Mn-Fe or Al-Fe (Anyang Hengwang Metallurgical Refractories Co., Ltd.), control the oxygen concentration in molten steel below 25ppm, and tap After 1 / 3, medium carbon Fe-Mn (Anyang Hengwang Metallurgical Refractories Co., Ltd.) and Fe-Ti (Pangang Group Beihai Special Ferroalloy Company or Panzhihua Jintaishan Industry and Trade Co., Ltd.) were added to the ladle for Mn, Alloying of Ti element, plus pitch coke (Panzhihua Yangcheng Metallurgical Accessories Co., Ltd.) or anthracite (Panz...

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Abstract

The invention provides a wheel steel which contains the following chemical components measured by simple substances on the basis of the total weight of the wheel steel: 0.07-0.12wt% of C, 0.01-0.15wt% of Si, 1.1-1.3wt% of Mn, 0.01-0.04wt% of Ti, 0.001-0.004wt% of Ca, 0.015-0.065wt% of acid-soluble Al, not larger than 0.025wt% of P, not larger than 0.015wt% of S and 97.31-98.87wt% of Fe. The invention also provides a preparation method of the wheel steel and a wheel, wherein the wheel is made of the wheel steel provided by the invention. The wheel steel provided by the invention has proper higher strength and toughness.

Description

technical field [0001] The invention relates to a wheel steel, a preparation method thereof and a wheel made of the wheel steel. Background technique [0002] As an important part of the vehicle, the wheel is under the action of alternating stress for a long time, and its use requires the wheel steel to have high fatigue life and cold forming performance. Therefore, in addition to high strength, wheel steel should also have good plasticity and toughness. At present, domestic iron and steel enterprises such as Baosteel, Wuhan Iron and Steel, Anshan Iron and Steel, Benxi Iron and Steel, and Panzhihua Iron and Steel have successfully developed their own hot-rolled steel plates for automobile wheels. The hot-rolled steel plates for automobile wheels with a tensile strength of 440 MPa are produced by other manufacturers except Panzhihua Iron and Steel Co., Ltd. with higher carbon content or niobium microalloying. However, the formability and weldability of hot-rolled steel shee...

Claims

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Application Information

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IPC IPC(8): C22C38/14C22C33/04C21C7/04C21C7/10
Inventor 吴菊环张中平左军陈永陈天明吴国荣李正荣董君李贵学
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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