CN103266253B - High-temperature-resistant alloy - Google Patents
High-temperature-resistant alloy Download PDFInfo
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- CN103266253B CN103266253B CN201310212478.6A CN201310212478A CN103266253B CN 103266253 B CN103266253 B CN 103266253B CN 201310212478 A CN201310212478 A CN 201310212478A CN 103266253 B CN103266253 B CN 103266253B
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Abstract
The invention relates to a high-temperature-resistant alloy. The high-temperature-resistant alloy is characterized by consisting of main components and auxiliary components, wherein the main components consist of the following components in percentage by mass: 10-25% of magnesium, 5-15% of titanium, 10-15% of lithium, 1-3% of cobalt, 15-25% of nickel, 1-5% of vanadium, 1-2% of manganese, 0.5-1% of molybdenum, 0.5-1% of niobium and 0.5-1% of titanium; and the auxiliary components consist of the following components in percentage by mass: 20-30% of polypropylene, 1-10% of a lubricant and 1-10% of inorganic minerals, and the melt flow rate of polypropylene is 50g/min. The high-temperature-resistant alloy has the beneficial effects as follows: (1) the magnesium alloy is low in cost, and the production process is simple and easy to operate and control; (2) the magnesium alloy is good in corrosion resistance and high in strength, and has certain fire resistance; and (3) multi-component alloying is used in the technical scheme, and the high-temperature-resistant alloy which has the characteristics of good process stability, high-temperature resistance, wear resistance, oxidation resistance, impact resistance and the like is obtained by adjusting the proportion of the alloy, reducing components of a precious alloy, adjusting the production process and experimenting repeatedly.
Description
Technical field
The present invention relates to alloy field, be specifically related to a kind of high temperature alloy and preparation method thereof.
Background technology
In general, the fusing point of metallic substance is higher, and its spendable limit of temperature is higher.This is because along with the rising of temperature, the mechanical property of metallic substance significantly declines, the corresponding increase of trend of oxidation corrosion, and therefore, general metallic substance all can only long term operation at 500 DEG C ~ 600 DEG C.The metal common name refractory alloy that can work under higher than the high temperature of 700 DEG C." heat-resisting " refers to that it at high temperature can keep sufficient intensity and good oxidation-resistance.In alloy material, magnesium is the lightest structured material, meets the environmental protection such as less energy-consumption, power conservation requirement, thus is often used to prepare alloy at industrial circles such as automobile, electronics, aviations.But magnesium fusing point is low, easy firing, the alloy thus prepared by magnesium is easy own combustion when temperature is close to its burning-point, and presence of fire is dangerous.At present the conventional material supply section that meets preparing anti-flaming function is divided into compound, coating type and sandwich type three class, above-mentioned three classes be respectively add in alloy fire retardant, alloy surface plate and in the alloy between folder on, but fire retardant mostly is toxic substance, its use range of the alloy prepared by the method is subject to serious restriction.Although magnesium alloy is pursued well with the light ductility of its quality, but because magnesium itself can react with water, air, therefore magnesium alloy majority is not corrosion-resistant, it can not use in harsh environment, secondly, alloy of the prior art mostly cost compare is high, and high temperature resistant, wear-resistant, oxidation resistant poor-performing, and this constrains the development of alloy industry and alloy to a certain extent in the application of various industry and popularization.
Summary of the invention
The present invention is inflammable and perishable and be easily oxidized, the defect of non-refractory in order to solve magnesium alloy, the invention provides a kind of high temperature alloy.
Technical scheme of the present invention is achieved in that a kind of high temperature alloy, it is characterized in that, described alloy is made up of main component and ancillary component, described main component is composed of the following components according to mass percent: magnesium 15-25%, titanium 5-15%, lithium 10-15%, cobalt 1-3%, nickel 15-20%, vanadium 1-3%, silicon 5-10%, molybdenum 1-3%, tungsten 0.5-1%; , ancillary component is composed of the following components according to mass percent: polypropylene 20%-30%, lubricant 1-10%, inorganic mineral 1-10%, and described polyacrylic melt flow rate (MFR) is 80g/min.
As a modification of the present invention, described lubricant is calcium stearate.
As a modification of the present invention, described mineral substance is wollastonite.
As a modification of the present invention, described main component is composed of the following components according to mass percent: magnesium 20%, titanium 10%, lithium 12%, cobalt 2%, nickel 18%, vanadium 1%, silicon 8%, molybdenum 2%, tungsten 1%, ancillary component is composed of the following components according to mass percent: polypropylene 20%, lubricant 3%, and inorganic mineral is 3%.
A kind of high temperature alloy, its preparation method comprises the steps:
(1) by described raw material magnesium, titanium, lithium, cobalt, nickel, vanadium, silicon, molybdenum, tungsten, puts into stirrer successively, and rotating speed is 50-70 revs/min, stir after 5 minutes, be warming up to 50 °, continue stirring 8 minutes, after stirring, described mixing raw material carried out vacuum intermediate-frequency induction melting, pour into a mould ingot casting, be milled into Nanoalloy powder;
(2) the Nanoalloy powder will prepared, with polypropylene, lubricant, inorganic mineral mixes, wherein by all polypropylene, the lubricant of 1/3rd, the inorganic mineral of 1/3rd adds in stirrer successively, stirrer temperature was warming up to 100-150 ° in 5 minutes, stir after 15 minutes, the lubricant of 2/3rds is added again, in 5 minutes, temperature is risen to 180 °, finally the inorganic mineral of 2/3rds is added, the rotating speed of agitator is 150 revs/min, Nanoalloy powder-polypropylene-inorganic mineral mixed solution is obtained after 30 minutes,
(3) by after above-mentioned mixed solution homogenizing cast ingot, be melting mixing dispersion in the twin screw extruder of 55:1 in length-to-diameter ratio, extrude difform alloy according to demand, described melt mix temperature is 180 DEG C.
Relative to prior art, this beneficial effect of the invention is as follows, 1) not only cost is lower for this magnesium alloy, and production technique simple, be easy to operate and control; 2) this magnesium alloy is corrosion-resistant better, intensity is higher, and has certain flame retardant resistance, more stable, meets the requirement of electronic product, engineering goods etc. to a certain extent; 3) this technical scheme uses multi-element alloyed, by adjusting the proportioning of alloy, the component reducing precious alloy and adjustment production technique, repetition test, obtains having that technology stability is good, high temperature resistant, wear-resistant, anti-oxidant, the high temperature alloy of the feature such as shock resistance, stable performance, production cost are low.4) with the addition of molybdenum in this technical scheme, Mo is weak carbide formers, is mainly solid-solution in matrix when content is lower, puies forward heavy alloyed intensity, improves the hardenability of material, also has the effect of crystal grain thinning, secondary hardening.Have good high-temperature stability, also can form the carbide containing Mo when Mo content is higher, its strengthening effect increases not obvious.In addition, in this technical scheme, also add silicon and tungsten, as common V-N steel element, obviously can improve the over-all properties of alloy.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.In following embodiment, the content of each component is weight percentage except indicating especially
Embodiment 1
The preparation of 1.1 high temperature alloys
(1) by described raw material magnesium 15%, titanium 15%, lithium 10%, cobalt 1%, nickel 15%, vanadium 1%, silicon 5%, molybdenum 1%, tungsten 1%; Put into stirrer successively, rotating speed is 50-70 revs/min, stirs after 5 minutes, is warming up to 50 °, continues stirring 8 minutes, after stirring, described mixing raw material is carried out vacuum intermediate-frequency induction melting, pours into a mould ingot casting, is milled into Nanoalloy powder;
(2) the Nanoalloy powder will prepared, with polypropylene 20%, lubricant 10%, inorganic mineral 6% mixes, wherein by all polypropylene, the lubricant of 1/3rd, the inorganic mineral of 1/3rd adds in stirrer successively, stirrer temperature was warming up to 100-150 ° in 5 minutes, stir after 15 minutes, the lubricant of 2/3rds is added again, in 5 minutes, temperature is risen to 180 °, finally the inorganic mineral of 2/3rds is added, the rotating speed of agitator is 150 revs/min, Nanoalloy powder-polypropylene-inorganic mineral mixed solution is obtained after 30 minutes,
(3) by after above-mentioned mixed solution homogenizing cast ingot, be melting mixing dispersion in the twin screw extruder of 55:1 in length-to-diameter ratio, extrude difform alloy according to demand, described melt mix temperature is 180 DEG C.
1.2 high temperature alloys erosion resistance
1.2.1, experimental group and control group are set:
Experimental group: the high temperature alloy that embodiment 1 prepares
Control group 1:AS41B magnesium alloy
1.2.2 solution and measuring method is configured
Prepare pickling solution according to the method for ISO10271, namely in 300 mL distilled water, add (10.0 ± 0.1) g 90%C3H6O3(analytical pure) then and (5.85 ± 0.005) g NaCl is 2.3 solution dilution to (1 000 ± 10) mL, pH.
According to the standard of the corresponding 1 mL pickling solution of every square centimeter of alloy, in each Glass Containers, add 6.5 mL pickling solutions; Above-mentioned three groups of tested alloys are positioned in the vial of liquid feeding, close; Censorship is taken out place 7 d in the constant water bath box of 37 DEG C after; Inductive coupling plasma emission spectrograph (inductively coupled plasma atomicemission spectroscopy, ICP-AES) is adopted to measure magnesium ion concentration in each test tube.
1. the flame retardant effect of 3 high temperature alloys
The high temperature alloy of sheet is prepared as experimental group by the method for embodiment 1, by AS41B magnesium alloy as a control group 2, above-mentioned two kinds of alloys are melted respectively at crucible, utilizes EVOC PCI DAS temperature acquisition card collecting temperature, utilize computer determination combustion initiation temperature.
The hardness of 1.4 high temperature alloys
The wear resistant alloy prepared by the method for embodiment 1, as experimental group, by AS41B magnesium alloy as a control group 2, is surveyed the hardness of two combination gold respectively and stretches slight, contrasting as follows:
| Tested group | Experimental group | Control group 2 |
| Hardness | 32HRC | 18HRC |
| Tensile strength | 1200—1250MPa | 600 MPa |
| Yield strength | 650—750 MPa | 400 MPa |
By finding out, the high temperature alloy of this embodiment 1 preparation, has good erosion resistance and flame retardant resistance and high temperature resistant, have good antioxidant effect, and its hardness is higher simultaneously, is convenient to large-scale popularization.
embodiment 2
Preparation method is identical with mode disclosed in embodiment 1, but the main component of the alloy in the present embodiment is composed of the following components according to mass percent: magnesium 20%, titanium 10%, lithium 12%, cobalt 2%, nickel 18%, vanadium 1%, silicon 8%, molybdenum 2%, tungsten 1%, ancillary component is composed of the following components according to mass percent: polypropylene 20%, lubricant 3%, and inorganic mineral is 3%.
embodiment 3
Preparation method is identical with mode disclosed in embodiment 1, but the main component of the alloy in the present embodiment is composed of the following components according to mass percent: magnesium 25%, titanium 13%, lithium 12%, cobalt 1%, nickel 15%, vanadium 1%, silicon 5%, molybdenum 1%, tungsten 0.5%, ancillary component is composed of the following components according to mass percent: polypropylene 20%, lubricant 2.5%, inorganic mineral 5%.
embodiment 4
As a modification of the present invention, described lubricant is calcium stearate.
embodiment 5
As a modification of the present invention, described mineral substance is wollastonite.
The above; only to preferred embodiment of the present invention; not other forms of restriction is done to the present invention; any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equal change; every disengaging the present invention program content; according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and remodeling, all drop in protection scope of the present invention.
Claims (2)
1. a high temperature alloy, it is characterized in that, described alloy is made up of main component and ancillary component, described main component is composed of the following components according to mass percent: magnesium 15-25%, titanium 5-15%, lithium 10-15%, cobalt 1-3%, nickel 15-20%, vanadium 1-3%, silicon 5-10%, molybdenum 1-3%, tungsten 0.5-1%; , ancillary component is composed of the following components according to mass percent: polypropylene 20%-30%, lubricant 1-10%, inorganic mineral 1-10%, and described polyacrylic melt flow rate (MFR) is 80g/min; Described lubricant is calcium stearate; Described mineral substance is wollastonite; Its preparation method comprises the steps:
(1) by raw material magnesium, titanium, lithium, cobalt, nickel, vanadium, silicon, molybdenum, tungsten, puts into stirrer successively, and rotating speed is 50-70 revs/min, stir after 5 minutes, be warming up to 50 DEG C, continue stirring 8 minutes, after stirring, mixing raw material carried out vacuum intermediate-frequency induction melting, pour into a mould ingot casting, be milled into Nanoalloy powder;
(2) the Nanoalloy powder will prepared, with polypropylene, lubricant, inorganic mineral mixes, wherein by all polypropylene, the lubricant of 1/3rd, the inorganic mineral of 1/3rd add in stirrer successively, stirrer temperature was warming up to 100-150 DEG C in 5 minutes, stir after 15 minutes, the lubricant of 2/3rds is added again, in 5 minutes, temperature is risen to 180 DEG C, finally the inorganic mineral of 2/3rds is added, the rotating speed of agitator is 150 revs/min, obtains Nanoalloy powder-polypropylene-inorganic mineral mixed solution after 30 minutes;
(3) by after above-mentioned mixed solution homogenizing cast ingot, be melting mixing dispersion in the twin screw extruder of 55:1 in length-to-diameter ratio, extrude difform alloy according to demand, described melt mix temperature is 180 DEG C.
2. high temperature alloy according to claim 1, it is characterized in that, described main component is composed of the following components according to mass percent: magnesium 20%, titanium 10%, lithium 12%, cobalt 2%, nickel 18%, vanadium 1%, silicon 8%, molybdenum 2%, tungsten 1%, ancillary component is composed of the following components according to mass percent: polypropylene 20%, lubricant 3%, inorganic mineral is 3%.
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| CN104651713A (en) * | 2013-11-22 | 2015-05-27 | 宁波金鹏高强度紧固件有限公司 | Equipment fastener under high-temperature environment, and manufacturing method thereof |
| CN105002411A (en) * | 2015-08-06 | 2015-10-28 | 潘桂枝 | High-temperature alloy |
| CN114381645A (en) * | 2022-01-18 | 2022-04-22 | 西安建筑科技大学华清学院 | High-temperature-resistant and wear-resistant composite material and preparation method thereof |
Citations (4)
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|---|---|---|---|---|
| CN101538671A (en) * | 2009-04-23 | 2009-09-23 | 上海交通大学 | Rapid solidification superhigh strength magnesium alloy and preparation method thereof |
| CN102127669A (en) * | 2011-02-24 | 2011-07-20 | 江苏中翼汽车新材料科技有限公司 | Heatproof and anticorrosion rare earth magnesium alloy with high obdurability and preparation method thereof |
| CN102532727A (en) * | 2011-12-19 | 2012-07-04 | 江苏金发科技新材料有限公司 | Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof |
| CN103122431A (en) * | 2013-03-01 | 2013-05-29 | 哈尔滨工程大学 | Magnesium-lithium alloy with enhanced long-period structure phase and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538671A (en) * | 2009-04-23 | 2009-09-23 | 上海交通大学 | Rapid solidification superhigh strength magnesium alloy and preparation method thereof |
| CN102127669A (en) * | 2011-02-24 | 2011-07-20 | 江苏中翼汽车新材料科技有限公司 | Heatproof and anticorrosion rare earth magnesium alloy with high obdurability and preparation method thereof |
| CN102532727A (en) * | 2011-12-19 | 2012-07-04 | 江苏金发科技新材料有限公司 | Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof |
| CN103122431A (en) * | 2013-03-01 | 2013-05-29 | 哈尔滨工程大学 | Magnesium-lithium alloy with enhanced long-period structure phase and preparation method thereof |
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