CN104313431A

CN104313431A - Preparation method of self-lubricating damping alloy

Info

Publication number: CN104313431A
Application number: CN201410578871.1A
Authority: CN
Inventors: 俞虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-10-24
Filing date: 2014-10-24
Publication date: 2015-01-28

Abstract

The invention relates to a preparation method of self-lubricating damping alloy. Magnesium alloy is taken as a substrate; compound complexes are evenly distributed on a magnesium alloy substrate. The alloy material comprises the following chemical components in percentage by weight: 6%-8% of aluminum, 2.5%-3% of strontium, 1%-3% of titanium, 2%-3% of tin, 1%-2.5% of iron, 0.03%-0.09% of carbon, 0.3%-0.5% of graphite, 0. 1%-0.3% of manganese, 0.5%-1.2% of nickel, 0.01%-0.03% of molybdenum, 0.03%-0.05% of boron, 0.03%-0.05% of vanadium, 0.001%-0.003% of tellurium, 0.8%-1.2% of dysprosium, 1.2%-1.5% of yttrium, 0.8%-1.2% of lanthanum, and the balance of magnesium and a few of inevitable impurities.

Description

A kind of self-lubricating damping alloy preparation method

Technical field

The invention belongs to function metal alloy compositions field, refer to a kind of self-lubricating damping alloy preparation method especially.

Background technology

In metal current Material Field, most attention is subject to as wear-resistant vibration-damping material using magnesium alloy, prior art proposes to add zinc, yttrium in magnesium, the form of zirconium manufactures Magnuminium, but this technical requirements yttrium, and zirconium adopts magnesium-30% yttrium respectively, magnesium-30% zirconium master alloy form adds, by preheating, melting and shaping, prepares the magnesium alloy with high damping.But preparation method's control of element of this material is strict, and the raising of cushioning effect is limited, the wear resistance of ordinary magnesium alloy is not high simultaneously.

Summary of the invention

The object of the invention is the defect for above-mentioned technology, provide a kind of self-lubricating shock reduction alloy material, the method technique is simple, and cost is low, is suitable for suitability for industrialized production.

The present invention is achieved by the following technical solutions:

A kind of self-lubricating damping alloy preparation method, first prepares burden by example, then by aluminium, strontium, tin, iron, magnesium, aluminium alloy is fused in the gas shield heating container that carbon is placed in SF6 or argon gas, wherein carbon adds with particle, and its particle diameter is 0.3-5mm, when aluminium alloy is heated to 710-725 DEG C, by the dysprosium prepared, yttrium, lanthanum and graphite are pressed in aluminium alloy, Qi Zhongdi, the particle diameter of yttrium and lanthanum is 0.1-0.5mm, insulation 5-10 minute, then lower the temperature 100-150 DEG C, then be warming up to holding temperature, and be incubated 15-30 minute, can cast; Take out cooling after the heat treatment furnace that foundry goods after casting is placed in 110-130 DEG C is incubated 0.5-0.8 hour and namely can obtain wear-resistant vibration-damping alloy material.

Wherein, strontium adds with magnesium strontium alloy, and wherein the mass content of strontium is 25% of magnesium strontium alloy.

Described batching is, is 6-8% by the weight percentage aluminium of Chemical Composition, and strontium is 2.5-3%, titanium is 1-3%, and tin is 2-3%, and iron is 1-2.5%, carbon is the graphite of 0.03-0.09%, 0.3-0.5%, and manganese is 0.1-0.3%, nickel is 0.5-1.2%, and molybdenum is 0.01-0.03%, and boron is 0.03-0.05%, the vanadium of 0.03-0.05%, the tellurium of 0.001-0.003%, dysprosium is 0.8-1.2%, yttrium is 1.2-1.5%, and lanthanum is 0.8-1.2%, and all the other are magnesium and a small amount of inevitable impurity.

The invention has the beneficial effects as follows:

By adding rare earth element in Magnuminium, forming the compound of reunion with other material respectively, can carry heavy alloyed damping effect, and production technique is simple, cost is low.Meanwhile, owing to adding manganese in the alloy, molybdenum, nickel and boron, and by specific production method, effectively wear resisting property can be improved.

Embodiment

Technology contents of the present invention is described in detail below by way of specific embodiment.

A kind of self-lubricating shock reduction alloy material, take magnesium alloy as matrix, magnesium alloy substrate is uniform-distribution with compound complex, the weight percentage aluminium of this alloy material Chemical Composition is 6-8%, strontium is 2.5-3%, titanium is 1-3%, tin is 2-3%, iron is 1-2.5%, carbon is 0.03-0.09%, the graphite of 0.3-0.5%, manganese is 0.1-0.3%, nickel is 0.5-1.2%, molybdenum is 0.01-0.03%, boron is 0.03-0.05%, the vanadium of 0.03-0.05%, the tellurium of 0.001-0.003%, dysprosium is 0.8-1.2%, yttrium is 1.2-1.5%, lanthanum is 0.8-1.2%, all the other are magnesium and a small amount of inevitable impurity.

Production method of the present invention is, first prepare burden according to the above ratio, then by aluminium, strontium, tin, iron, magnesium, aluminium alloy is fused in the gas shield heating container that carbon is placed in SF6 or argon gas, wherein carbon adds with particle, its particle diameter is 0.3-5mm, strontium adds with magnesium strontium alloy, wherein the mass content of strontium is 25% of magnesium strontium alloy, when aluminium alloy is heated to 710-725 DEG C, by the dysprosium prepared, yttrium, in lanthanum press-in aluminium alloy, wherein dysprosium, the particle diameter of yttrium and lanthanum and graphite is 0.1-0.5mm, insulation 5-10 minute, then lower the temperature 100-150 DEG C, be warming up to holding temperature again, and be incubated 15-30 minute, can cast, take out cooling after the heat treatment furnace that foundry goods after casting is placed in 110-130 DEG C is incubated 0.5-0.8 hour and namely can obtain shock reduction alloy material.

Embodiment 1

The weight percentage aluminium choosing this alloy material Chemical Composition is 6%, and strontium is 2.5%, and titanium is 1%, tin is 2%, and iron is 1.5%, and carbon is 0.03%, the graphite of 0.3%, manganese is 0.1%, and nickel is 0.5%, molybdenum is 0.01%, and boron is the vanadium of 0.03%, 0.03%, the tellurium of 0.001%, dysprosium is 0.8%, and yttrium is 1.2%, lanthanum is 0.8%, and all the other are magnesium and a small amount of inevitable impurity.Production method is all identical in the present embodiment and following examples.

Embodiment 2

The weight percentage aluminium choosing this alloy material Chemical Composition is 8%, and strontium is 3%, and titanium is 3%, tin is 3%, and iron is 1%, and carbon is 0.05%, the graphite of 0.5%, manganese is 0.3%, and nickel is 1.2%, molybdenum is 0.03%, and boron is the vanadium of 0.05%, 0.05%, the tellurium of 0.003%, dysprosium is 1.2%, and yttrium is 1.5%, lanthanum is 1.2%, and all the other are magnesium and a small amount of inevitable impurity.

Embodiment 3

The weight percentage aluminium choosing this alloy material Chemical Composition is 7%, and strontium is 2.8%, and titanium is 2%, tin is 2.5%, and iron is 2.5%, and carbon is 0.09%, the graphite of 0.35%, manganese is 0.15%, and nickel is 0.8%, molybdenum is 0.016%, and boron is the vanadium of 0.035%, 0.035%, the tellurium of 0.002%, dysprosium is 1.0%, and yttrium is 1.4%, lanthanum is 1.0%, and all the other are magnesium and a small amount of inevitable impurity.

Embodiment 4

The weight percentage aluminium choosing this alloy material Chemical Composition is 8%, and strontium is 2.5%, and titanium is 2.8%, tin is 2%, and iron is 1.5%, and carbon is 0.06%, the graphite of 0.45%, manganese is 0.22%, and nickel is 1.0%, molybdenum is 0.02%, and boron is the vanadium of 0.04%, 0.042%, the tellurium of 0.0015%, dysprosium is 0.8%, and yttrium is 1.5%, lanthanum is 0.8%, and all the other are magnesium and a small amount of inevitable impurity.

Claims

1. a self-lubricating damping alloy preparation method, it is characterized in that: first prepare burden by example, then by aluminium, strontium, tin, iron, magnesium, aluminium alloy is fused in the gas shield heating container that carbon is placed in SF6 or argon gas, wherein carbon adds with particle, its particle diameter is 0.3-5mm, when aluminium alloy is heated to 710-725 DEG C, by the dysprosium prepared, yttrium, lanthanum and graphite are pressed in aluminium alloy, wherein dysprosium, the particle diameter of yttrium and lanthanum is 0.1-0.5mm, insulation 5-10 minute, then lower the temperature 100-150 DEG C, be warming up to holding temperature again, and be incubated 15-30 minute, can cast, take out cooling after the heat treatment furnace that foundry goods after casting is placed in 110-130 DEG C is incubated 0.5-0.8 hour and namely can obtain wear-resistant vibration-damping alloy material.

2. self-lubricating damping alloy preparation method according to claim 1, is characterized in that: strontium adds with magnesium strontium alloy, and wherein the mass content of strontium is 25% of magnesium strontium alloy.

3. self-lubricating damping alloy preparation method according to claim 1, it is characterized in that: described batching is, be 6-8% by the weight percentage aluminium of Chemical Composition, strontium is 2.5-3%, titanium is 1-3%, tin is 2-3%, iron is 1-2.5%, carbon is 0.03-0.09%, the graphite of 0.3-0.5%, manganese is 0.1-0.3%, nickel is 0.5-1.2%, molybdenum is 0.01-0.03%, boron is 0.03-0.05%, the vanadium of 0.03-0.05%, the tellurium of 0.001-0.003%, dysprosium is 0.8-1.2%, yttrium is 1.2-1.5%, lanthanum is 0.8-1.2%, all the other are magnesium and a small amount of inevitable impurity.