Self-lubricating alloy material

Abstract

The invention relates to a self-lubricating alloy material, which is characterized by comprising rare earth elements; the chemical compositions (weight percentage) are as follows: 5 to 15 percent of iron, 10 to 20 percent of chromium, 1 to 8 percent of molybdenum, 2 to 6 percent of niobium, 1 to 4 percent of cobalt, 0.03 to 0.1 percent of boron, 1 to 5 percent of tungsten, 1 to 5 percent of sulfur, 1 to 2 percent of silicon, 0.01 to 0.20 percent of cerium and the balance of nickel. The invention adds the rare earth elements and other alloy elements, strengthens ferrite, improves heat resistance of the material, has good structural compactness and self-lubricity, strong abrasion resistance and wide range of applicable temperature and leads the service life thereof to be prolonged greatly.

Description

Technical field

[0001] The invention relates to a nickel-based alloy, in particular to a self-lubricating alloy material, which belongs to the alloy material technology. Background technique

[0002] Self-lubricating alloy materials have long been widely used in the metallurgical industry. Lubrication can reduce friction and wear between two surfaces in relative motion. Under normal pressure, the solid lubricants molybdenum disulfide and graphite decompose or oxidize above 350°C and 400°C respectively. . Although some oxides and metal oxides have application potential as high-temperature lubricants, their low-temperature lubricating performance is poor, so they cannot be widely used. The existing self-lubricating alloy materials have a short service life, which leads to high production costs and waste of a lot of resources, and frequent replacement is time-consuming and labor-intensive, which affects work efficiency. Self-lubricating bearings in continuous casting machines...

Examples

Embodiment

[0011] The chemical composition (% by weight) of the self-lubricating alloy material produced by induction furnace method smelting is:

[0012] Iron 8%, Chromium 15%, Molybdenum 4%, Niobium 3%, Cobalt 2%, Boron 0.08%,

[0013] Tungsten 2%, sulfur 3%, silicon 1,2%, cerium 0.15%, the balance is nickel.

Technical field

[0001] The invention relates to a nickel-based alloy, in particular to a self-lubricating alloy material, which belongs to the alloy material technology. Background technique

[0002] Self-lubricating alloy materials have long been widely used in the metallurgical industry. Lubrication can reduce friction and wear between two surfaces in relative motion. Under normal pressure, the solid lubricants molybdenum disulfide and graphite decompose or oxidize above 350°C and 400°C respectively. . Although some oxides and metal oxides have application potential as high-temperature lubricants, their low-temperature lubricating performance is poor, so they cannot be widely used. The existing self-lubricating alloy materials have a short service life, which leads to high production costs and waste of a lot of resources, and frequent replacement is time-consuming and labor-intensive, which affects work efficiency. Self-lubricating bearings in continuous casting machines...

Examples

Embodiment

[0011] The chemical composition (% by weight) of the self-lubricating alloy material produced by induction furnace method smelting is:

[0012] Iron 8%, Chromium 15%, Molybdenum 4%, Niobium 3%, Cobalt 2%, Boron 0.08%,

[0013] Tungsten 2%, sulfur 3%, silicon 1,2%, cerium 0.15%, the balance is nickel.