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High-performance antifriction and antiwear manganese-aluminum-bronze alloy

A manganese-aluminum bronze, high-performance technology, applied in the field of high-performance anti-friction and wear-resistant manganese-aluminum bronze alloys, can solve problems such as deterioration of manufacturability, increase of segregation phenomenon, and decrease of fatigue resistance, and achieve the goal of overcoming low fatigue strength, low Effect of dry friction factor, good seizure resistance

Active Publication Date: 2015-03-25
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the content of tin or lead in copper alloys and aluminum alloys will increase the anti-adhesion, compliance and embedding properties of the alloys, but the fatigue resistance will decrease, the manufacturability will deteriorate, and the segregation phenomenon will increase; secondly, copper-based alloys and aluminum-based alloys Most of the alloys contain toxic metals such as lead or cadmium, which are prone to environmental pollution; and the price of tin is relatively expensive, which increases the production cost of the alloy

Method used

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Effect test

Embodiment 1

[0043] The raw materials are mixed according to mass percentage: Mn 5%, Al 6.5%, Fe2%, Zn2%, Ce0.6%, and the balance of Cu is blended, melted in a vacuum induction furnace at a melting temperature of 1230 ° C, and kept for 10 minutes, then, The alloy liquid with a pouring temperature of 1150°C is poured into a graphite mold with a diameter of 40mm, and naturally cooled to obtain a circular ingot with a diameter of 40mm; the alloy is β-Cu 3 The microhardness, tensile strength and elongation values ​​of the Al single-phase solid solution structure are shown in Table 2; the friction and wear properties are shown in Table 3.

Embodiment 2

[0045] The raw materials are mixed according to mass percentage: Mn 6%, Al 6%, Fe 1.5%, Zn 1.5%, Ce 0.4%, and the balance is Cu; it is melted in a vacuum induction furnace at a melting temperature of 1235°C and kept for 10 minutes; Then, the alloy liquid with a pouring temperature of 1155°C is poured into a graphite mold with a diameter of 40mm, and naturally cooled to obtain a circular ingot with a diameter of 40mm; the alloy is β-Cu 3 The microhardness, tensile strength and elongation values ​​of the Al single-phase solid solution structure are shown in Table 2; the friction and wear properties are shown in Table 3.

Embodiment 3

[0047] The raw materials are mixed according to mass percentage: Mn 6.5%, Al 6.5%, Fe 1.5%, Zn 1.5%, Ce 0.4%, and the balance Cu; smelting in a vacuum induction furnace at a melting temperature of 1240°C and holding for 11 minutes; Then, the alloy liquid with a pouring temperature of 1160°C is poured into a graphite mold with a diameter of 40 mm, and naturally cooled to obtain a circular ingot with a diameter of 40 mm; the alloy is β-Cu 3 The microhardness, tensile strength and elongation values ​​of the Al single-phase solid solution structure are shown in Table 2; the friction and wear properties are shown in Table 3.

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Abstract

The invention relates to a high-performance antifriction and antiwear manganese-aluminum-bronze alloy. According to the technical scheme adopted by the invention, the high-performance antifriction and antiwear manganese-aluminum-bronze alloy is prepared from Mn, Al, Fe, Zn, Ce and Cu by casting and hot forging or hot rolling. The elements of the high-performance antifriction and antiwear manganese-aluminum-bronze alloy comprise 5-10% by mass of Mn, 6-10% by mass of Al, 1.5-2.5% by mass of Fe, 1.5-2.5% by mass of Zn, 0.4-0.8% by mass of Ce and the balance of Cu. The high-performance antifriction and antiwear manganese-aluminum-bronze alloy provided by the invention can be used for overcoming the defects of low fatigue strength and poor heat resistance of babbitt and increase of seizure resistance, compliance resistance and embedment resistance of copper-based alloy and aluminum-based alloy in poor lubrication environment and solving the traditional problem in the field that toxic metals such as lead and cadmium can cause pollution to environment easily. In addition, the high-performance antifriction and antiwear manganese-aluminum-bronze alloy can function as the antifriction and antiwear material of all parts and components of a friction motion pair used in complex conditions of high speed, heavy duty, high temperature and corrosive media in the machinery industry, metallurgy industry, energy industry and chemical industry and can be used for preparing parts and components such as sliding bearings, worm gears, sliding blocks, shaft sleeves and driving nuts.

Description

technical field [0001] The invention relates to a high-performance friction-reducing and wear-resistant manganese-aluminum bronze alloy. Background technique [0002] In the existing metallurgy, energy, mining, transportation and other mechanical equipment, there are various friction pairs, such as: sliding bearings, gears, worm gears, guide rails, transmission nuts, etc. In order to improve efficiency and maintain accuracy, it is necessary to reduce friction due to relative motion The resulting energy loss and wear require the material of the friction pair to have a low friction coefficient and high wear resistance. At present, the commonly used antifriction metal materials mainly include Babbitt alloy, copper-based alloy and aluminum-based alloy. Babbitt alloy is a traditional bearing alloy material, which has the characteristics of good anti-friction, good compliance to the journal, good embedding, high corrosion resistance, and good adhesion to steel and bronze; but Bab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C9/01C22C9/05
CPCC22C9/00C22C9/01C22C9/05
Inventor 彭成章向浪曹获熊伟唐思文
Owner HUNAN UNIV OF SCI & TECH
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