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High temperature alloy for heat-resisting furnace roller and heat-resisting furnace roller for thermal treatment furnace

A high-temperature alloy and heat treatment furnace technology, which is applied in the field of heat-resistant alloy materials, can solve problems such as sticking steel and tumor accumulation, and achieve good thermal fatigue resistance

Active Publication Date: 2014-09-10
中冶京诚(扬州)冶金科技产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at problems such as steel sticking and build-up of the roller hearth type heat treatment furnace rollers in the prior art that are prone to sticking to steel and buildup when used in a high-temperature state for a long time, and provides a high-temperature alloy for heat-resistant furnace rollers, which can be used at 1150°C- It has high heat-resistant strength, anti-oxidation and anti-corrosion properties at a service temperature of 1200 ° C, and has certain anti-oxidation build-up and anti-adhesion properties, which can prolong the service life of the heat-resistant furnace rolls made

Method used

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  • High temperature alloy for heat-resisting furnace roller and heat-resisting furnace roller for thermal treatment furnace

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Effect test

Embodiment 1

[0019] A heat-resistant furnace roll of a roller hearth heat treatment furnace, according to the chemical composition of the high-temperature alloy for the heat-resistant furnace roll designed in the present invention, it contains the following components in weight percentage: C 0.33%, Si 1.55%, Mn 0.85%, Cr 28.03 %, Ni36.98%, Co12.01%, W 3.24%, Mo 1.25%, Nb0.66%, Ce 0.08%, and the rest are Fe and impurities caused by manufacturing. The alloy material with the above ratio was smelted by the basic electric arc furnace non-oxidation method, and then the 1# test piece was obtained by centrifugal casting.

Embodiment 2

[0021] A heat-resistant furnace roll of a roller hearth heat treatment furnace, according to the chemical composition of the high-temperature alloy for the heat-resistant furnace roll designed in the present invention, it contains the following components in weight percentage: C 0.32%, Si 1.42%, Mn 1.08%, Cr27. 11%, Ni37.99%, Co11.10%, W3.48%, Mo1.50%, Nb0.41%, Ce 0.05%, and the rest are Fe and impurities caused by manufacturing. The alloy material with the above ratio was smelted by alkaline electric arc furnace non-oxidation method, and then the 2# test piece was obtained by centrifugal casting.

Embodiment 3

[0023] A heat-resistant furnace roll of a roller hearth heat treatment furnace, according to the chemical composition of the high-temperature alloy for the heat-resistant furnace roll designed in the present invention, it contains the following components in weight percentage: C 0.35%, Si 1.69%, Mn 0.80%, Cr28. 86%, Ni36.07%, Co12.79%, W2.51%, Mo1.02%, Nb0.90%, Ce 0.09%, the rest are Fe and impurities caused by manufacturing. The alloy material with the above ratio was smelted by the basic electric arc furnace non-oxidation method, and then the 3# test piece was obtained by centrifugal casting.

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Abstract

The invention relates to high temperature alloy for a heat-resisting furnace roller, and the heat-resisting furnace roller prepared from the high temperature alloy in the field of an alloy material. The high temperature alloy comprises the following components by weight percent: 0.25-0.45% of C, 0.5-2.0% of Si, 0.5-1.5% of Mn, 26-29.5% of Cr, 36-40% of Ni, 11-15% of Co, 1-4% of W, 1.0-2.5% of Mo, 0.4-1.4% of Nb, 0.02-0.2% of Ce, and the balance being Fe and inevitable impurities. Compared with the high temperature alloy adopted by the heat-resisting furnace roller in the prior art, the heat-resisting furnace roller prepared from the high temperature alloy disclosed by the invention has high endurance strength, oxidation resistance and corrosion resistance under the working condition at 1150-1200 DEG C, and has certain oxidation product tumor resistance and anti-blocking property, and the service life of the prepared heat-resisting furnace roller can be prolonged.

Description

technical field [0001] The invention relates to the field of heat-resistant alloy materials, in particular to a high-temperature-resistant alloy for manufacturing heat-resistant furnace rolls and a heat-resistant furnace roll for a heat treatment furnace made of the alloy. Background technique [0002] Roller hearth heat treatment furnace is mainly used for normalization, annealing, quenching, tempering and other heat treatment processes of steel plates, steel pipes and wire rods. Due to its multiple functions, high output, materials are heated on both sides, and the heat treatment quality is good. At the same time, it can fully realize mechanization and automation. Control is beneficial to reduce the cost of heat treatment, so it has been widely used in the metallurgical industry. [0003] The furnace roller is one of the key components of the roller hearth heat treatment furnace, and the furnace roller is a consumable part in the entire heat treatment furnace, which needs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00
Inventor 董杰侯煜蒋乃富江华周劲松
Owner 中冶京诚(扬州)冶金科技产业有限公司
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