CN105177348A - High-strength titanium carbide copper-based composite material and preparation method thereof - Google Patents
High-strength titanium carbide copper-based composite material and preparation method thereof Download PDFInfo
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- CN105177348A CN105177348A CN201510727764.5A CN201510727764A CN105177348A CN 105177348 A CN105177348 A CN 105177348A CN 201510727764 A CN201510727764 A CN 201510727764A CN 105177348 A CN105177348 A CN 105177348A
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Abstract
The invention relates to a high-strength titanium carbide copper-based composite material for a nuclear power pump body and a preparation method thereof. The high-strength titanium carbide copper-based composite material is prepared from, by volume, 3.5-6.5% of nano titanium carbide and 93.5-96.5% of copper alloy ZCuSn10Zn2. The preparation method of the high-strength titanium carbide copper-based composite material for the nuclear power pump body comprises the steps of smelting, stirring, heat preservation, casting and the like. The high-strength titanium carbide copper-based composite material for the nuclear power pump body utilizes the characteristics of high melting point, good heat-conducting property, high hardness, good chemical stability, non-hydrolyzation, good high-temperature oxidation resistance and the like of the nano titanium carbide and enables the strength and the hardness of the copper alloy ZCuSn10Zn2 to be improved while the original corrosion resistance and machinability of the copper alloy ZCuSn10Zn2 are ensured, and accordingly the service life of the high-strength titanium carbide copper-based composite material in a nuclear power pump body part is prolonged.
Description
Technical field
The present invention relates to a kind of copper-base alloy composite material and preparation method thereof, particularly relate to a kind of high strength carbonizing titanium copper based composites for the nuclear power pump housing.
Background technology
Castmethod is according to the standard GB copper alloy ZCuSn of GB GB/T1176-2013
10zn
2be a kind of comparatively conventional tinbronze material, it is good that it has castability, solidity to corrosion, wear resistance and machinability, and foundry goods compactness is higher, the good advantage of resistance to air loss; Therefore mainly for the manufacture of the important tube fittings worked under medium and higher load (15MPa) and little sliding velocity (3m/s), and valve, cock, the pump housing, gear, impeller and worm gear etc.Due to its intensity and corresponding hardness lower, its working life in nuclear power pump housing accessory shorter (about 5 years), bring larger replacement cost thus.In order to improve the application time limit of this material in nuclear power pump parts further, while its original solidity to corrosion of guarantee and machinability, improve its intensity and hardness is necessary.
Nano titanium carbide is a kind of nano material of titanium carbide, and fusing point is high, good heat conductivity, and hardness is large, and chemically stable is good, is not hydrolyzed, and high-temperature oxidation resistance is good.Nano titanium carbide is a kind of high purity titanium carbide powder, is in the carbon tube furnace or frequency modulation vacuum oven of logical hydrogen, to react obtained under 1600 DEG C of-1800 DEG C of high temperature by titanium dioxide and carbon black.Because nano titanium carbide hardness is large, have good mechanical property, therefore it is the important source material of CEMENTED CARBIDE PRODUCTION, can be used for manufacturing high-abrasive material, cutter material, mechanical component etc., also can make the crucible of the metals such as melting tin, lead, cadmium, zinc.
To sum up, utilize the high rigidity of nano titanium carbide and the advantage of good mechanical properties, overcome copper alloy ZCuSn
10zn
2intensity and the lower shortcoming of hardness performance, by nano titanium carbide and copper alloy ZCuSn
10zn
2be prepared into matrix material at guarantee copper alloy ZCuSn
10zn
2improve its intensity and hardness while original corrosion resistance nature and machinability, thus make this high strength carbonizing titanium copper based composites can be applied to nuclear power pump parts.
Summary of the invention
The object of the invention is to, by improving nano titanium carbide and copper alloy ZCuSn
10zn
2between volume proportion and preparation condition, provide a kind of and effectively improve copper alloy ZCuSn
10zn
2high strength carbonizing titanium copper based composites for the nuclear power pump housing of intensity and hardness and preparation method thereof.
For achieving the above object, technical scheme provided by the present invention is:
For a high strength carbonizing titanium copper based composites for the nuclear power pump housing, be made up of the component of following volume percent: nano titanium carbide 3.5-6.5%, copper alloy ZCuSn
10zn
293.5-96.5%.
Preferably, the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the present invention, is made up of the component of following volume percent: nano titanium carbide 3.5%, copper alloy ZCuSn
10zn
296.5%.
Preferably, the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the present invention, is made up of the component of following volume percent: nano titanium carbide 5%, copper alloy ZCuSn
10zn
295%.
Preferably, the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the present invention, is made up of the component of following volume percent: nano titanium carbide 6.5%, copper alloy ZCuSn
10zn
293.5%.
Further, described copper alloy ZCuSn
10zn
2be made up of the component of following mass percent: tin slab 9.0-11.0%, zinc 1.0-3.0%, lead pig≤1.5%, nickel≤2.0%, impurity≤1.5%, all the other are copper.
Further, the particle diameter of described nano titanium carbide is 100-300 μm.
The invention provides a kind of preparation method of the high strength carbonizing titanium copper based composites for the nuclear power pump housing, there are following steps:
1) copper alloy ZCuSn is prepared
10zn
2, electrolytic copper, tin slab, zinc, lead pig, nickel are put into electric furnace melting according to above-mentioned part by weight, and in melting, copper alloy liquid volume is less than 90% of electric furnace volume; Smelting temperature is 1050-1150 DEG C, and the time is 5-6h;
2) use Spike direct-reading spectrometer to the copper alloy ZCuSn of preparation
10zn
2liquid carries out composition detection, to determine that its chemical constitution is within above-mentioned scope;
3) by nano titanium carbide by volume per-cent be that 3.5-6.5% puts into above-mentioned copper alloy ZCuSn
10zn
2the surface of liquid, opens the shaking device of main frequency furnace and stirs with graphite rod simultaneously, makes the two Homogeneous phase mixing; Further rising furnace temperature is to 1200-1250 DEG C and keep 45-50min:
4) be incubated in electric furnace by the high strength carbonizing titanium copper based composites completed, the time is 40-45min; Adopt the mode of continuous casting by this high strength carbonizing titanium copper based composites casting afterwards, casting temp is 1200-1250 DEG C;
5) the high strength carbonizing titanium copper based composites after casting is carried out surperficial Vehicle Processing process, and pack according to factory calibration.
Further, in step 3, the volume percent of described nano titanium carbide is 3.5%.
Further, in step 3, the volume percent of described nano titanium carbide is 5%.
Further, in step 3, the volume percent of described nano titanium carbide is 6.5%.
Adopt technique scheme, beneficial effect of the present invention has:
1. high-purity nano titanium carbide material is evenly distributed on copper alloy ZCuSn by above-mentioned technique means by the present invention
10zn
2in material, utilize nano level titanium carbide hardness high, intensity is large, and chemically stable is good, is not hydrolyzed, the performance that high-temperature oxidation resistance is good, compensate for copper alloy ZCuSn
10zn
2the shortcomings such as the low and hardness of the intensity of material is low, improve its intensity and hardness, increase the service life further while the original corrosion resistance nature of guarantee and machinability.
2. the high strength carbonizing titanium copper based composites for the nuclear power pump housing that obtains of the present invention, by changing nano titanium carbide and copper alloy ZCuSn
10zn
2volume ratio, effectively can improve intensity and the hardness of final copper-base alloy composite material.The load of the parts of high strength carbonizing titanium copper based composites manufacture is increased to 40MPa by 15MPa, and work-ing life was increased to about 8 years by 5 years, thus makes this high strength carbonizing titanium copper based composites can be applied to nuclear power pump parts.
Accompanying drawing explanation
Fig. 1 is the schema of the method for the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the present invention.
Embodiment
Below in conjunction with drawings and Examples, high strength carbonizing titanium copper based composites for the nuclear power pump housing provided by the invention and preparation method thereof is described further, but and unrestricted range of application of the present invention.
embodiment 1
The high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 1, is made up of the component of following volume percent: nano titanium carbide 3.5%, copper alloy ZCuSn
10zn
296.5%, wherein copper alloy ZCuSn
10zn
2be made up of the component of following mass percent: tin slab 9.0-11.0%, zinc 1.0-3.0%, lead pig≤1.5%, nickel≤2.0%, impurity≤1.5%, all the other are copper; The particle diameter of nano titanium carbide is 100-300 μm.
The preparation method of the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 1, has following steps (as shown in Figure 1):
1) copper alloy ZCuSn is prepared
10zn
2, electrolytic copper, tin slab, zinc, lead pig, nickel are put into electric furnace melting according to above-mentioned part by weight, and in melting, copper alloy liquid volume is less than 90% of electric furnace volume; Smelting temperature is 1050 DEG C, and the time is 5h;
2) use Spike direct-reading spectrometer to the copper alloy ZCuSn of preparation
10zn
2liquid carries out composition detection, to determine that its chemical constitution is within above-mentioned claimed range;
3) by nano titanium carbide by volume per-cent be 3.5% put into above-mentioned copper alloy ZCuSn
10zn
2the surface of liquid, opens the shaking device of main frequency furnace and stirs with graphite rod simultaneously, makes the two Homogeneous phase mixing; Further rising furnace temperature to 1200 DEG C also keeps 45min;
4) be incubated in electric furnace by the high strength carbonizing titanium copper based composites completed, the time is 40min; Adopt the mode of continuous casting by this high strength carbonizing titanium copper based composites casting afterwards, casting temp is 1200 DEG C;
5) the high strength carbonizing titanium copper based composites after casting is carried out surperficial Vehicle Processing process, and pack according to factory calibration.
embodiment 2
The high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 2, is made up of the component of following volume percent: nano titanium carbide 5%, copper alloy ZCuSn
10zn
295%, wherein copper alloy ZCuSn
10zn
2be made up of the component of following mass percent: tin slab 9.0-11.0%, zinc 1.0-3.0%, lead pig≤1.5%, nickel≤2.0%, impurity≤1.5%, all the other are copper; The particle diameter of nano titanium carbide is 100-300 μm.
The preparation method of the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 2, has following steps (as shown in Figure 1):
1) copper alloy ZCuSn is prepared
10zn
2, electrolytic copper, tin slab, zinc, lead pig, nickel are put into electric furnace melting according to above-mentioned part by weight, and in melting, copper alloy liquid volume is less than 90% of electric furnace volume; Smelting temperature is 1100 DEG C, and the time is 5.5h;
2) use Spike direct-reading spectrometer to the copper alloy ZCuSn of preparation
10zn
2liquid carries out composition detection, to determine that its chemical constitution is within above-mentioned scope;
3) by nano titanium carbide by volume per-cent be 5% put into above-mentioned copper alloy ZCuSn
10zn
2the surface of liquid, opens the shaking device of main frequency furnace and stirs with graphite rod simultaneously, makes the two Homogeneous phase mixing; Further rising furnace temperature to 1225 DEG C also keeps 45min;
4) be incubated in electric furnace by the high strength carbonizing titanium copper based composites completed, the time is 40min; Adopt the mode of continuous casting by this high strength carbonizing titanium copper based composites casting afterwards, casting temp is 1225 DEG C;
5) the high strength carbonizing titanium copper based composites after casting is carried out surperficial Vehicle Processing process, and pack according to factory calibration.
embodiment 3
The high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 3, is made up of the component of following volume percent: nano titanium carbide 6.5%, copper alloy ZCuSn
10zn
293.5%, wherein copper alloy ZCuSn
10zn
2be made up of the component of following mass percent: tin slab 9.0-11.0%, zinc 1.0-3.0%, lead pig≤1.5%, nickel≤2.0%, impurity≤1.5%, all the other are copper; The particle diameter of nano titanium carbide is 100-300 μm.
The preparation method of the high strength carbonizing titanium copper based composites for the nuclear power pump housing of the embodiment of the present invention 3, has following steps (as shown in Figure 1):
1) copper alloy ZCuSn is prepared
10zn
2, electrolytic copper, tin slab, zinc, lead pig, nickel are put into electric furnace melting according to above-mentioned part by weight, and in melting, copper alloy liquid volume is less than 90% of electric furnace volume; Smelting temperature is 1150 DEG C, and the time is 6h;
2) use Spike direct-reading spectrometer to the copper alloy ZCuSn of preparation
10zn
2liquid carries out composition detection, to determine that its chemical constitution is within above-mentioned scope;
3) by nano titanium carbide by volume per-cent be 6.5% put into above-mentioned copper alloy ZCuSn
10zn
2the surface of liquid, opens the shaking device of main frequency furnace and stirs with graphite rod simultaneously, makes the two Homogeneous phase mixing; Further rising furnace temperature to 1250 DEG C also keeps 50min;
4) be incubated in electric furnace by the high strength carbonizing titanium copper based composites completed, the time is 45min; Adopt the mode of continuous casting by this high strength carbonizing titanium copper based composites casting afterwards, casting temp is 1250 DEG C;
5) the high strength carbonizing titanium copper based composites after casting is carried out surperficial Vehicle Processing process, and pack according to factory calibration.
comparative example 1
Add the Cu alloy material of traditional element cadmium, titanium, composed of the following components: the cadmium accounting for alloy material gross weight 1.5%, account for the titanium of alloy material gross weight 2%, account for the copper alloy ZCuSn of alloy material gross weight 96.5%
10zn
2.By traditional thermal treatment process, namely repeatedly to anneal, tempering and the thermal treatment process such as to quench, prepare above-mentioned Cu alloy material.
comparative example 2
Add the Cu alloy material of traditional element cadmium, titanium, composed of the following components: the cadmium accounting for alloy material gross weight 3%, account for the titanium of alloy material gross weight 3.5%, account for the copper alloy ZCuSn of alloy material gross weight 93.5%
10zn
2.By traditional thermal treatment process, namely repeatedly to anneal, tempering and the thermal treatment process such as to quench, prepare above-mentioned Cu alloy material.
The load that the mechanical property of the traditional copper alloy material of high strength carbonizing titanium copper based composites of the present invention and above-mentioned comparative example 1 and 2 and the parts of manufacture can carry is as shown in table 1 with its working life as nuclear power pump housing accessory.
Table 1
Data according to above-mentioned table 1 can be found out, add mechanical property, the components ' load of the high strength carbonizing titanium copper based composites manufacture after nano titanium carbide and are obtained for significant raising the working life for nuclear power pump parts.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1., for a high strength carbonizing titanium copper based composites for the nuclear power pump housing, it is characterized in that, be made up of the component of following volume percent: nano titanium carbide 3.5-6.5%, copper alloy ZCuSn
10zn
293.5-96.5%.
2. the high strength carbonizing titanium copper based composites for the nuclear power pump housing according to claim 1, is characterized in that, be made up of the component of following volume percent: nano titanium carbide 3.5%, copper alloy ZCuSn
10zn
296.5%.
3. the high strength carbonizing titanium copper based composites for the nuclear power pump housing according to claim 1, is characterized in that, be made up of the component of following volume percent: nano titanium carbide 5%, copper alloy ZCuSn
10zn
295%.
4. the high strength carbonizing titanium copper based composites for the nuclear power pump housing according to claim 1, is characterized in that, be made up of the component of following volume percent: nano titanium carbide 6.5%, copper alloy ZCuSn
10zn
293.5%.
5. the high strength carbonizing titanium copper based composites for the nuclear power pump housing according to claim 1-4, is characterized in that, described copper alloy ZCuSn
10zn
2be made up of the component of following mass percent: tin slab 9.0-11.0%, zinc 1.0-3.0%, lead pig≤1.5%, nickel≤2.0%, impurity≤1.5%, all the other are copper.
6. the high strength carbonizing titanium copper based composites for the nuclear power pump housing according to claim 1-4, is characterized in that, the particle diameter of described nano titanium carbide is 100-300 μm.
7., for a preparation method for the high strength carbonizing titanium copper based composites of the nuclear power pump housing, it is characterized in that there are following steps:
1) copper alloy ZCuSn is prepared
10zn
2, electrolytic copper, tin slab, zinc, lead pig, nickel are put into electric furnace melting according to part by weight according to claim 5, and in melting, copper alloy liquid volume is less than 90% of electric furnace volume; Smelting temperature is 1050-1150 DEG C, and the time is 5-6h;
2) use Spike direct-reading spectrometer to the copper alloy ZCuSn of preparation
10zn
2liquid carries out composition detection, to determine that its chemical constitution is within scope according to claim 5;
3) by nano titanium carbide by volume per-cent be that 3.5-6.5% puts into above-mentioned copper alloy ZCuSn
10zn
2the surface of liquid, opens the shaking device of main frequency furnace and stirs with graphite rod simultaneously, makes the two Homogeneous phase mixing; Further rising furnace temperature is to 1200-1250 DEG C and keep 45-50min;
4) be incubated in electric furnace by the high strength carbonizing titanium copper based composites completed, the time is 40-45min; Adopt the mode of continuous casting by this high strength carbonizing titanium copper based composites casting afterwards, casting temp is 1200-1250 DEG C;
5) the high strength carbonizing titanium copper based composites after casting is carried out surperficial Vehicle Processing process, and pack according to factory calibration.
8. preparation method according to claim 7, is characterized in that, in step 3, the volume percent of described nano titanium carbide is 3.5%.
9. preparation method according to claim 7, is characterized in that, in step 3, the volume percent of described nano titanium carbide is 5%.
10. preparation method according to claim 7, is characterized in that, in step 3, the volume percent of described nano titanium carbide is 6.5%.
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| CN106636730A (en) * | 2016-10-31 | 2017-05-10 | 宁波胜景传动科技有限公司 | Driving turbine of speed reducer |
| CN107312947A (en) * | 2017-06-30 | 2017-11-03 | 合肥博创机械制造有限公司 | A kind of preparation method of alloy material for plant equipment |
| WO2018028089A1 (en) * | 2016-08-09 | 2018-02-15 | 苏州天兼新材料科技有限公司 | Casting material for nuclear power and wind power and manufacturing method therefor |
| CN108149059A (en) * | 2018-02-06 | 2018-06-12 | 国网河北能源技术服务有限公司 | A kind of TiC enhances the preparation method of copper-based electric contact composite material |
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| CN108149059A (en) * | 2018-02-06 | 2018-06-12 | 国网河北能源技术服务有限公司 | A kind of TiC enhances the preparation method of copper-based electric contact composite material |
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Application publication date: 20151223 |