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Carriage steel plate and preparation method thereof and carriage

A carriage board and carriage technology, applied in chemical instruments and methods, vehicle parts, transportation and packaging, etc., can solve problems such as inability to use for a long time, poor wear resistance of coating, corrosion of steel substrate, etc., and achieve good welding performance, good Abrasion resistance and the effect of extending the service life

Pending Publication Date: 2021-06-25
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the steel plates used in the carriage are usually coated high-strength steel plates. This kind of coated steel plate has good corrosion resistance and strength in the early stage of use, but the coating has poor wear resistance. The coating is peeled off, and the exposed steel substrate at the peeled off place will be corroded by corrosive goods, so that the compartment is damaged and cannot be used for a long time
In order to solve the above problems, it is considered to use martensitic stainless steel or duplex stainless steel as steel plates for truck compartments, which have good corrosion resistance, wear resistance and strength, but the production cost of martensitic stainless steel or duplex stainless steel is too high

Method used

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  • Carriage steel plate and preparation method thereof and carriage
  • Carriage steel plate and preparation method thereof and carriage
  • Carriage steel plate and preparation method thereof and carriage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 provides a steel plate for a carriage and a preparation method thereof. The steel plate for a carriage includes a wear-resistant steel layer made of 12Cr13 and a high-strength carbon steel layer made of SC700D.

[0062] The preparation method of the steel plate for the carriage comprises the following steps:

[0063] Step 1, place two layers of wear-resistant steel billets made of 12Cr13 between two layers of high-strength carbon steel billets made of SC700D, wherein the metal surfaces of the wear-resistant steel billet and the high-strength carbon steel billet are directly abutted without leaving a gap , A release agent is laid between two layers of wear-resistant steel billets to form a composite billet with a thickness of 200mm×width 1700mm×length 8000mm. Among them, the thickness of the wear-resistant steel billet 12Cr13 is 25mm, and the thickness of the high-strength carbon steel billet SC700D is 75mm.

[0064] Then, the composite steel billet is weld...

Embodiment 2

[0069] Embodiment 2 provides a steel plate for a carriage and a preparation method thereof. The steel plate for a carriage includes a wear-resistant steel layer made of 12Cr13 and a high-strength carbon steel layer made of 510L.

[0070] The preparation method of the steel plate for the carriage comprises the following steps:

[0071] Step 1. Place two layers of 12Cr13 wear-resistant steel billet between two layers of 510L high-strength carbon steel billet, wherein the metal surfaces of the wear-resistant steel billet and the high-strength carbon steel billet are directly in contact without leaving a gap , A release agent is laid between two layers of wear-resistant billets to form a composite billet with a thickness of 216mm×width 1800mm×length 5000mm. Among them, the thickness of the corrosion-resistant billet 12Cr13 is 18mm, and the thickness of the high-strength carbon steel billet 510L is 90mm.

[0072] Then, the composite steel billet is welded and edge-sealed by vacuum...

Embodiment 3

[0077] Embodiment 3 provides a steel plate for a carriage and a preparation method thereof. The steel plate for a carriage includes an abrasion-resistant steel layer made of 022Cr22Ni5Mo3N and a high-strength carbon steel layer made of 600L.

[0078] The preparation method of the steel plate for the carriage comprises the following steps:

[0079]Step 1, place two layers of wear-resistant steel billets made of 022Cr22Ni5Mo3N between two layers of high-strength carbon steel billets made of 600L, wherein the metal surfaces of the wear-resistant steel billet and the high-strength carbon steel billet are directly abutted without leaving a gap , A release agent is laid between two layers of wear-resistant billets to form a composite billet with a thickness of 224mm×width 2000mm×length 9000mm. Among them, the thickness of the wear-resistant steel billet 022Cr22Ni5Mo3N is 14mm, and the thickness of the high-strength carbon steel billet 510L is 98mm.

[0080] Then, the composite stee...

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Abstract

The invention relates to a carriage steel plate and a preparation method thereof and a carriage, and belongs to the technical field of carriage steel plate production. The carriage steel plate comprises an abrasion-resistant steel layer and a high-strength carbon steel layer, and the carriage plate is formed by metallurgy compounding of the abrasion-resistant steel layer and the high-strength carbon steel layer. According to the carriage steel plate, the shear strength ranges from 300 MPa to 321 MPa, the binding force between two layers is high, the tensile strength ranges from 600 MPa to 875 MPa, the strength is high, the surface hardness of the abrasion-resistant layer ranges from 27 HRC to 38 HRC, good abrasion resistance is achieved, the abrasion-resistant pitting potential ranges from 0.10 V to 0.45 V, good corrosion resistance is achieved, and the comprehensive performance is good. After the carriage steel plate is made into the carriage, the abrasion-resistant layer is in contact with goods and can bear the impact and corrosion working conditions of the goods, the high-strength carbon steel layer is far away from the goods and can provide high-strength support, the carriage steel plate has good welding performance, the requirements for light weight, energy conservation and consumption reduction are met, and the service life of the carriage is prolonged.

Description

technical field [0001] The invention belongs to the technical field of steel plate production for carriages, and in particular relates to a steel plate for carriages, a preparation method thereof and a carriage. Background technique [0002] The truck compartment is used to transport goods. During the transportation of goods, the truck compartment (especially dump trucks, mine cars, etc.) needs to bear the impact of the goods, and may also be corroded by the corrosive goods transported. Therefore, the steel plate for the truck compartment needs It has good wear resistance, corrosion resistance and strength properties. [0003] At present, the steel plates used in the carriage are usually coated high-strength steel plates. This kind of coated steel plate has good corrosion resistance and strength in the early stage of use, but the coating has poor wear resistance. The coating is peeled off, and the exposed steel substrate at the peeled off place will be corroded by corrosive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D33/023B32B15/01B32B15/18B32B37/06B32B37/10
CPCB32B15/011B32B37/06B32B37/10B32B2307/536B32B2307/554B32B2307/558B32B2307/714B62D33/023
Inventor 王小勇王华鹏孙启昆黄乐庆王东孔艳荣李晓林罗家明王建国
Owner SHOUGANG CORPORATION
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