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Nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and preparing method of nickel base alloy material

A nickel-based alloy and hydrofluoric acid-resistant technology, which is applied in the field of fluoroplastic processing, can solve the problem that the wear resistance and corrosion resistance cannot be maximized, and the hydrofluoric acid resistance and wear resistance and corrosion resistance cannot be satisfied at the same time. problems, to achieve good market potential, popularization and development benefits, and low manufacturing costs

Active Publication Date: 2017-03-29
苏州艾盾合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, to maintain the strength and wear resistance of the alloy, the C content used is relatively high, generally 0.4-1.5%, so that the alloy structure contains a large amount of carbides, and the corrosion will proceed along the grain boundary, so its Corrosion resistance is poor; and its copper content is low, generally less than 3.0%, the proportion of copper and nickel is too low, and it cannot produce good synergy with other elements in the alloy
Therefore, its wear resistance and corrosion resistance cannot be brought into full play, especially for fluoroplastic processing machinery parts, traditional materials cannot meet the requirements of hydrofluoric acid resistance and wear resistance at the same time

Method used

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  • Nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and preparing method of nickel base alloy material
  • Nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and preparing method of nickel base alloy material
  • Nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and preparing method of nickel base alloy material

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Embodiment 1

[0029] Embodiment 1 This embodiment 1 provides a wear-resistant and hydrofluoric acid corrosion resistant nickel-based alloy, which is prepared according to the following composition ratio and process:

[0030] (1) The composition ratio of the materials and the amount of 100KG raw materials are listed in Table 1 below:

[0031] Table 1 Component distribution ratio and amount of each raw material

[0032]

[0033]

[0034] (2) The specific preparation method includes the following steps:

[0035] (1) Add about 1 / 3 of electrolytic nickel to an intermediate frequency furnace with a capacity of 100KG, then add all graphite, all metallic chromium, all nickel boron, all pure iron, 1 / 2 electrolytic copper, 1 / 3 Of industrial silicon, and finally covered with a layer of nickel plate;

[0036] (2) Raise the intermediate frequency power to smelt the charge to fully alloy the melt;

[0037] (3) Add remaining electrolytic copper and electrolytic nickel, and continue smelting until the melt is fully ...

Embodiment 2

[0041] Embodiment 2 This embodiment 2 provides a nickel-based alloy with wear resistance and hydrofluoric acid corrosion, which is prepared according to the following composition ratio and process:

[0042] (1) The composition ratio of the materials and the amount of 100KG raw materials are listed in Table 2 below:

[0043] Table 2 Composition ratio and the amount of each raw material

[0044] element Target composition (%) Allocation value (%) Matching weight Remarks C0.070.08 0.08kg Cr0.20.2 0.2kg B2.22.3 12.78kg nickel boron 18% boron in nickel boron Si3.03.0 3.0kg Fe1.21.1 1.1kg A small amount of Fe in other raw materials Cu19.019.0 19.0kg Ni margin74.32 63.84kg

[0045] (2) The specific preparation method includes the following steps:

[0046] (1) Add about 1 / 3 of electrolytic nickel to an intermediate frequency furnace with a capacity of 100KG, then add all graphite, all metallic chromium, all nickel boron, all pure iron, 1 / 2 electrolytic copper, 1 / 3 The industrial silicon...

Embodiment 3

[0052] Embodiment 3 This embodiment 3 provides a nickel-based alloy with wear resistance and hydrofluoric acid corrosion, which is prepared according to the following composition ratio and process:

[0053] (1) The composition ratio of the materials and the amount of 100KG raw materials are listed in Table 3 below:

[0054] Table 3 Component distribution ratio and the amount of each raw material

[0055]

[0056] (2) The specific preparation method includes the following steps:

[0057] (1) Add about 1 / 3 of electrolytic nickel to an intermediate frequency furnace with a capacity of 100KG, then add all graphite, all metallic chromium, all nickel boron, all pure iron, 1 / 2 electrolytic copper, 1 / 3 The industrial silicon is finally covered with a layer of nickel plate.

[0058] (2) Increase the power of the intermediate frequency to melt the charge to fully alloy the melt.

[0059] (3) Add remaining electrolytic copper and electrolytic nickel, and continue smelting until the melt is fully a...

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Abstract

The invention discloses a nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and manufacturing fluoroplastic machining components and a preparing method of the nickel base alloy material. The nickel base alloy material comprises, by weight percent, 0.03%-0.10% of C, 0.2%-1.0% of Cr, 1.5%-2.5% of B, 2.0%-3.5% of Si, smaller than or equal to 2.0% of Fe, 12%-26% of Cu and the balance Ni. Induction heating smelting is mainly adopted, then direct forming is achieved through pouring, or powder is obtained through atomizing, and then, a powder metallurgy forming method is used for manufacturing the fluoroplastic machining components. Compared with a hastelloy C, the nickel base alloy material resisting abrasion and hydrofluoric acid corrosion and manufactured through the method has better hydrofluoric acid corrosion resisting performance and abrasion resisting performance, the manufactured fluoroplastic machining components meet the requirements of abrasion resistance and corrosion resistance of the fluoroplastic machining components, the service life is greatly prolonged, and component replacing cost is saved.

Description

Technical field [0001] The invention relates to the technical field of fluoroplastic processing, in particular to a nickel-based alloy material with wear resistance and hydrofluoric acid corrosion resistance for manufacturing fluoroplastic processing parts and a preparation method thereof. Background technique [0002] The barrel and threaded elements are the core components of the plastic extruder. They are subject to strong hydrofluoric acid corrosion and greater wear during the processing of fluoroplastics. Among the barrels and threaded component materials currently used in fluoroplastics processing machinery, materials with high hardness and good wear resistance, such as 6542, high-chromium cast iron, etc., are not resistant to hydrofluoric acid corrosion and have a very short service life; while resistant to hydrogen Hastelloy C, which has good fluoric acid corrosion performance, has good corrosion resistance, but due to its low hardness and low wear resistance, the service...

Claims

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Application Information

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IPC IPC(8): C22C19/05C22C1/03
CPCC22C1/023C22C1/03C22C19/002C22C19/058
Inventor 王新贵
Owner 苏州艾盾合金材料有限公司
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