CN100500927C - Composite ceramet material preparing process - Google Patents
Composite ceramet material preparing process Download PDFInfo
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- CN100500927C CN100500927C CNB2004100417641A CN200410041764A CN100500927C CN 100500927 C CN100500927 C CN 100500927C CN B2004100417641 A CNB2004100417641 A CN B2004100417641A CN 200410041764 A CN200410041764 A CN 200410041764A CN 100500927 C CN100500927 C CN 100500927C
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- metal parts
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Abstract
The present invention is composite material making technology, by which ceramic is permeated into metal material in high density and with high energy strong glow ion. The present invention operates on the principle that one or several of W, Mo, Ti, Al, Zr, etc. is first permeated into the surface of metal part by means of low pressure glow discharge and sputtering, and then combined chemically with one or several of C, N, Si, O, etc. to form one ceramic-rich layer in 0.02-1.5 mm thickness and with one or several of WC, TiC, TiCN, AlN, ZrO2, Al2O3, etc. The present invention can meet the different kinds of performance requirement on metal part surface.
Description
Technical field
The present invention relates to a kind of manufacture method of matrix material, the present invention relates to a kind of manufacture method of ceramic-metal composite more precisely, belong to field of surface metallurgy.
Background technology
On engineering, require surface of the work to have the example of property, be seen everywhere, with the abrasion piece example, no matter be adhesive wear or abrasive wear, the locality wearing and tearing are of universal significance.In industrial sectors such as metallurgy, petrochemical industry, machinery, building materials, mining, feed processing, be extensive use of high mangaenese steel, rich chromium cast iron, shellfish two-phase magnesium iron difficult to understand, die steel, the built-up welding wolfram varbide, ceramic coated etc., make metal parts as high-abrasive material.Under high speed, high temperature, high pressure, fully loaded transportation condition, wear no resistance, do not have enough toughness and tenacities, cause work-ing life short, part replacement is frequent, and operating rate is low, and energy consumption increases.Excellent wire rod unit as present domestic steel mill uses traditional die steel guide and guard, only 8 hours work-ing life, and feed granulator 40Cr flat-die, work-ing life, less than was 1 year, the 40Cr worm propeller of twin-screw extruder extruding aluminum oxide, only 2 months work-ing life.
Pottery is the solid that metal and non-metallic element combine, as WC, TiC, TiN, AlN, Al
2O
3, NiAl
2Then.Most of stupaliths are hard and crisp, can not resemble simply metal and the matrix material to melt and pour into a mould, or casting become the available shape.Can be made into Wimet with powder metallurgy process, the prevailing composition of Wimet is the wolfram varbide that contains the cobalt jointing compound, and they are harder than any instrument steel capital, and fabulous anti-low-stress corrosion wear performance is arranged.But because the tensile strength of Wimet is low, shock resistance is poor, maximum shortcoming is a workability, the size of part is subjected to the influence of makers' compacting and caking power, and expensive price, be restricted in many application facet, carbide, nitride, oxide compound adopt built-up welding or spraying at present, physical vapor depositions etc. are applied in many occasions, but because complex process, because of two kinds of material coefficient of expansion differences, and easily cause cracking, or the restriction of and equipment thin because of settled layer, seldom can in wear-resisting, anti-corrosion engineering, be applied.
Summary of the invention
The objective of the invention is to utilize subatmospheric glow discharge and sputter principle, a kind of process for preparing cermet material composite is provided.
The present invention takes following technical scheme to realize:
A kind of manufacture method of ceramic-metal composite comprises the following steps:
(1) charge into the rare gas element medium in the body of heater that vacuumizes, preferably charge into argon gas, its final vacuum is that air pressure is controlled at 5-60Pa less than 1Pa; Can sneak into an amount of reactive gas when needing, as O
2, N
2, NH
3, CH
4Deng.
(2) establish negative and positive the two poles of the earth in body of heater, connect the pulse power of 0-1000 volts, negative electrode is barrel-shaped negative electrode;
(3) with at least a W, M
0, Ti, Al, Zr desire to ooze material, metal parts is placed in the barrel-shaped negative electrode, the make pulse power supply, under the rough vacuum atmosphere of inert gases, under the preferred argon atmosphere, ion at negative electrode, metal parts, desire to ooze the aura mutual superposition that material produces, and the energy range that aura is strengthened obtains high-energy, and high-speed sputtering is to metal parts;
(4) metal parts is under the bombardment of continuous energetic ion, and temperature raises gradually, and the metal parts surface produces distortion district and dislocation district, has increased density of defects in the crystal, the active atomic of desiring to ooze material along the defective passage fast expansion be seeped into the metal parts top layer;
(5) carbonization, nitrogenize, carbon nitrogenize or oxide treatment are carried out in the metal parts top layer of step (4) gained.
The present invention can also take following technical scheme further to realize:
The manufacture method of aforesaid ceramic-metal composite is characterized in that wherein (4) described temperature is 470-980 degree, and the treatment time is 2-6 hours.
The manufacture method of aforesaid ceramic-metal composite is characterized in that wherein (5) described chemical combination treatment temp is the 350-950 degree, and the time is 0.5-3 hours.
Principle of the present invention is to utilize barrel-shaped negative electrode, in rough vacuum, inert gas atmosphere, preferred argon atmospher, the pulsed electrical effect forms boundling down, strong glow discharge, produce high-density, high-energy desires to ooze the material ionic current, at high temperature, be splashed to the metal parts surface fast, and infiltrate the metal parts top layer gradually, simultaneously according to tungsten, titanium is very easily affine with carbon in certain temperature range, titanium aluminium is very easily affine with nitrogen in certain temperature range, the aluminium zirconium in certain temperature range very easily with oxygen affinity and principle, carry out carbonization respectively, nitrogenize or oxide treatment reach in the metal surface certain depth to form and contain WC or TiC, TiN or AlN, Al
2O
3Or ZrO
2Deng ceramic wearing coat, anticorrosion layer or other function cementation coating.
The present invention adopts and can vacuumize, and the body of heater of energy fill gas body medium, and its final vacuum is less than 1Pa, feeds gas Ar, and air pressure is controlled at 5-60Pa.Establish in the body of heater and connect the anode of 0-1000 deep-sited pulses, barrel-shaped negative electrode towards power supply.The metal parts after cleaning, one or more material is placed in the barrel-shaped negative electrode among W, Mo, Ti, Al, the Zr, the make pulse power supply, under rough vacuum, argon atmospher, ion at negative electrode, metal parts, desire to ooze the aura mutual superposition that material produces, and the energy range that aura is strengthened obtains high-energy, and high-speed sputtering is to metal parts.Metal parts is under continuous high-energy ion bombardment, and temperature raises gradually, and its surface produces distortion district and dislocation district, has increased density of defects in the crystal, and the active atomic of desiring to ooze material is diffused rapidly to the metal parts surface along the defective passage.According to metal parts, the difference of desiring to ooze material, temperature ranges is 470-980 degree, the treatment time was generally 2-6 hours according to required ceramic layer thickness and treatment temp decision.In order to make the plain metal part obtain high-wearing feature, solidity to corrosion and other functional requirement, also must carry out carbonization or nitrogenize, or carbon nitrogenize or oxide treatment, according to metal parts, stupalith and Ceramic Composite layer thickness, the chemical combination temperature range is 350-950 degree, and the time was generally 0.5-3 hours, can synthesize ceramic-metal composite.
The ceramic-metal composite that the present invention makes has high rigidity, high strength, high tenacity, characteristics such as high-wearing feature or high anti-corrosion and high heat insulating ability, wear resisting property is 5-10 times of steel alloy commonly used, can reach under some situation more than 20 times, solidity to corrosion improves more than 4 times.
Embodiment
Embodiment 1
Adopt the carbon steel metalworking to become 12 of steel billet slitting wheels, the tungsten material is some to be placed in the barrel shape negative electrode, is evacuated to 1Pa, charges into an amount of argon gas, and insulation is 5 hours under 980 degree.Carbonization is 2.5 hours under 920 degree, the synthetic compound slitting wheel of sintering metal, and on probation through steel mill, improved 5 times or more than former alloy tool steel slitting wheel work-ing life.
Embodiment 2
Adopt the carbon steel metalworking to become 12 on rolling guide wheel, the titanium material is some to be placed in the barrel shape negative electrode, be evacuated to 1Pa, charge into an amount of argon gas and under 950 degree, be incubated 5 hours, the carbon nitrogenize is 2.5 hours under 850 degree, the compound rolling guide wheel of synthetic sintering metal, on probation through steel mill, improve 7 times or more than former alloy tool steel rolling guide wheel work-ing life.
Except that above embodiment, all employings are equal to the formed technical scheme of form of replacement or equivalent transformation, all drop within protection scope of the present invention.
Claims (3)
1, a kind of manufacture method of ceramic-metal composite comprises the following steps:
(1) charge into the rare gas element medium in the body of heater that vacuumizes, its final vacuum is less than 1Pa, feeds gas Ar, and air pressure is controlled at 5-60Pa:
(2) establish negative and positive the two poles of the earth in body of heater, connect the pulse power of 0-1000 volt, negative electrode is barrel-shaped negative electrode;
(3) at least a W, Ti, Al, Zr are desired to ooze material, metal parts is placed in the barrel-shaped negative electrode, the make pulse power supply, under rough vacuum, atmosphere of inert gases, ion at negative electrode, metal parts, desire to ooze the aura mutual superposition that material produces, and the energy range that aura is strengthened obtains high-energy, is splashed on the metal parts fast;
(4) metal parts is under the bombardment of continuous energetic ion, temperature raises gradually, the metal parts surface produces distortion district and dislocation district, increased density of defects in the crystal, the active atomic of desiring to ooze material expands fast along the defective passage and is seeped into the metal parts top layer, described temperature is the 470-980 degree, and the treatment time is 2-6 hours;
(5) carbonization, nitrogenize, carbon nitrogenize or oxide treatment are carried out in the metal parts top layer of step (4) gained.
2, the manufacture method of ceramic-metal composite according to claim 1 is characterized in that wherein (1) described rare gas element is an argon gas.
3, the manufacture method of ceramic-metal composite according to claim 1 is characterized in that wherein (5) described chemical combination treatment temp is 350-950 degree, and the time is 0.5-3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100417641A CN100500927C (en) | 2004-08-23 | 2004-08-23 | Composite ceramet material preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100417641A CN100500927C (en) | 2004-08-23 | 2004-08-23 | Composite ceramet material preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1740380A CN1740380A (en) | 2006-03-01 |
| CN100500927C true CN100500927C (en) | 2009-06-17 |
Family
ID=36092912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100417641A Expired - Fee Related CN100500927C (en) | 2004-08-23 | 2004-08-23 | Composite ceramet material preparing process |
Country Status (1)
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|---|---|
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330062B (en) * | 2011-10-18 | 2013-01-02 | 沈阳大学 | Preparation method of titanium/nickel nitride nano multilayer film |
| CN103938145B (en) * | 2013-01-20 | 2016-02-17 | 江苏兆龙电气有限公司 | The preparation method of the corrosion of resistance to copper cermet material |
| CN107148815B (en) * | 2017-05-17 | 2019-12-13 | 安徽巨泰机械制造有限公司 | high-strength wear-resistant rotary blade for rotary cultivator |
| CN108774705A (en) * | 2018-09-11 | 2018-11-09 | 张家港铭久机械有限公司 | A kind of high-strength corrosion-resisting metal alloy |
-
2004
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| Publication number | Publication date |
|---|---|
| CN1740380A (en) | 2006-03-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20190823 |