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Wear-resistant width fixing machine module and manufacturing method thereof

A manufacturing method and the technology of fixed-width machine, which are applied in the field of wear-resistant module of large side pressure fixed-width press machine and its manufacture, fixed-width machine module and its manufacturing field, and can solve the problem of poor hardness uniformity of surfacing layer and easy occurrence of surfacing layer Cracking and peeling, low wear resistance and other problems, to achieve good high temperature oxidation resistance and thermal fatigue resistance, fine solidification structure, excellent wear resistance effect

Active Publication Date: 2014-07-09
SHANGHAI DONGXIN METALLURGY TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the service life of the module, Shanghai Jiaotong University (Wang Guanghuan, Development and Application of Composite Module of Fixed Width Side Press, Dissertation of Shanghai Jiaotong University, 2009) also proposed to use Ni-Cr-Mo-W nickel-based electrode for overlay welding The working surface of the fixed-width press module achieves the purpose of prolonging the life of the module. However, the fixed-width press module is manufactured by the surfacing method. The surfacing layer has the disadvantages of poor hardness uniformity and low wear resistance, and the surfacing layer is easy to use. cracking and peeling

Method used

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  • Wear-resistant width fixing machine module and manufacturing method thereof
  • Wear-resistant width fixing machine module and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A 5-ton power frequency induction furnace is used to melt the material of the width-fixing machine module. The manufacturing process steps of the width-fixing machine module are:

[0035] ①Heat and melt ordinary steel scrap, recarburizer and ferromolybdenum, add ferrosilicon and ferromanganese after the molten iron is melted, adjust the composition before the furnace and raise the temperature to 1562°C, add aluminum and silicon-calcium-barium alloy, and then release the molten iron During the process of tapping, ferrosilicon with a mass of 0.70% of the total mass of the molten iron containing 79.3% of silicon is added for inoculation treatment with flow.

[0036] ②Crush copper-magnesium alloy spheroidizers, nickel-magnesium alloy spheroidizers, ferroboron, metal zinc, vanadium-nitrogen alloys, and ferrotitanium into small pieces with a particle size of 8-12 mm. After drying at 200°C for 5 hours, place the At the bottom of the ladle, the molten iron is subjected to spher...

Embodiment 2

[0041] A 5-ton industrial frequency induction furnace is used to melt the material of the width-fixing machine module. The manufacturing process steps of the width-fixing machine module are:

[0042] ①Heat and melt ordinary steel scrap, recarburizer and ferromolybdenum, add ferrosilicon and ferromanganese after the molten iron is melted, adjust the composition before the furnace and raise the temperature to 1579°C, add aluminum and silicon-calcium-barium alloy, and then release the molten iron During the process of tapping, ferrosilicon with a mass of 0.85% of the total mass of the molten iron containing 75.8% of silicon is added for inoculation treatment with flow.

[0043] ②Crush copper-magnesium alloy nodulizers, nickel-magnesium alloy nodulizers, ferroboron, metal zinc, vanadium-nitrogen alloys and ferro-titanium into small pieces with a particle size of 8-12mm, dry at 250°C for 3 hours, and place in pouring At the bottom of the ladle, the molten iron is subjected to spher...

Embodiment 3

[0048] A 5-ton industrial frequency induction furnace is used to melt the material of the width-fixing machine module. The manufacturing process steps of the width-fixing machine module are:

[0049] ①Heat and melt ordinary steel scrap, recarburizer and ferromolybdenum, add ferrosilicon and ferromanganese after the molten iron is melted, adjust the composition in front of the furnace and raise the temperature to 1571°C, add aluminum and silicon-calcium-barium alloy, and then release the molten iron During the process of tapping, ferrosilicon with a mass of 0.75% of the total mass of molten iron containing 75.8% of silicon is added for inoculation treatment with flow.

[0050] ②Crush copper-magnesium alloy spheroidizers, nickel-magnesium alloy spheroidizers, ferroboron, metal zinc, vanadium-nitrogen alloys, and ferrotitanium into small pieces with a particle size of 8-12mm. After drying at 220°C for 4 hours, place the At the bottom of the ladle, the molten iron is subjected to ...

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Abstract

The invention provides a wear-resistant width fixing machine module and a manufacturing method thereof, which belongs to the technical field of width fixing machine modules. The width fixing machine module comprises, on a basis of mass percentage, 2.5 to 2.8 of C, 1.8 to 2.4 of Si, no more than 3.5 and no less than 3.2 of C + 1 / 3Si, 2.2 to 2.5 of Al, 0.6 to 0.8 of Cu, 0.5 to 0.8 of Ni, 0.15 to 0.30 of Mo, 0.3 to 0.6 of Mn, 0.03 to 0.05 of Ca, 0.03 to 0.05 of Ba, 0.04 to 0.07 of Mg, 0.015 to 0.035 of Zn, 0.003 to 0.006 of B, 0.02 to 0.04 of Ti, 0.08 to 0.10 of V, 0.012 to 0.030 of N, no more than 0.035 of P and no more than 0.010 of S, with the balance being Fe. According to the invention, an electric furnace is used for production, a cold-hardening resin sand mold is used for casting, and the prepared width fixing machine module has high strength, good toughness and excellent high temperature oxidation resistance, thermal fatigue resistance and abrasion resistance.

Description

technical field [0001] The invention relates to a width-sizing machine module and a manufacturing method thereof, in particular to a wear-resistant module of a large-side-pressure width-sizing press machine and a manufacturing method thereof, and belongs to the technical field of width-sizing machine modules. Background technique [0002] Sizing Press (SP for short) is an online width adjustment technology, which has become an important new technology in modern hot-rolled strip production. important new equipment. The main purpose of the fixed-width press is to customize the width of the slab before rough rolling according to the width requirements of different finished slabs. It is especially suitable for occasions where the specifications of the continuous casting slab are small and a variety of finished slabs with different widths are to be produced, which can effectively reduce raw materials. Slab width specification and continuous casting slab width adjustment time and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/16C22C33/06B22D1/00
Inventor 佟宝辉王勇陶树立符寒光
Owner SHANGHAI DONGXIN METALLURGY TECH ENG