CN105238951A - Novel high-strength nanoscale silicon carbide copper base alloy material for nuclear energy steam pipeline - Google Patents

Novel high-strength nanoscale silicon carbide copper base alloy material for nuclear energy steam pipeline Download PDF

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CN105238951A
CN105238951A CN201510731404.2A CN201510731404A CN105238951A CN 105238951 A CN105238951 A CN 105238951A CN 201510731404 A CN201510731404 A CN 201510731404A CN 105238951 A CN105238951 A CN 105238951A
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silicon carbide
base alloy
copper
copper base
novel material
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孙飞
赵勇
赖万贤
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SUZHOU JINCANG ALLOY NEW-MATERIAL Co Ltd
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SUZHOU JINCANG ALLOY NEW-MATERIAL Co Ltd
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Abstract

The invention provides a novel high-strength nanoscale silicon carbide copper base alloy material for a nuclear energy steam pipeline. The novel high-strength nanoscale silicon carbide copper base alloy material comprises, by volume, 8% to 12% of nanoscale silicon carbide (SiC) and 88% to 92% of copper alloy (ZCuSn3Zn11Pb4). By the adoption of the novel high-strength nanoscale silicon carbide copper base alloy material for the nuclear energy steam pipeline, a nanoscale silicon carbide (SiC) material is evenly distributed in an existing copper alloy (ZCuSn3Zn11Pb4) material through certain technical measures, so that the strength, the rigidity, the abrasion resistance and the corrosion resistance of the alloy material are higher than those of an existing copper alloy (ZCuSn3Zn11Pb4) material, and the application range of the existing copper alloy (ZCuSn3Zn11Pb4) material in the nuclear energy steam pipeline is broadened.

Description

A kind of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material
Technical field
The present invention relates to copper-based alloy material, particularly relate to a kind of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material.
Background technology
Nanometer silicon carbide (SiC) is a kind of by certain technical qualification, preparation on the basis of common silicon carbide (SiC) material and a kind of nano material of going out.Nanometer silicon carbide (SiC) has that purity is high, particle diameter is little, is evenly distributed, specific surface area is large, high surface, loose density are low, fabulous mechanics, calorifics, electricity and chemical property, namely have the features such as high rigidity, high-wearing feature and good self-lubricating, high thermoconductivity, low thermal coefficient of expansion and hot strength are large.
GB copper alloy (ZCuSn 3zn 11pb 4) be a kind of polycomponent cast bronze material, there is easy processing, good casting property, the characteristic such as corrosion-resistant; Be mainly used in the tube fittings being manufactured on and working in seawater, light water and steam.But, due to copper alloy (ZCuSn 3zn 11ph 4) reason of material self, drive the application in steam system to be subject to larger restriction at core.Only at guarantee copper alloy (ZCuSn 3zn 11ph 4) primary characteristic prerequisite under promote further this material intensity could expand the requirement that this material applies in core steam propulsion system.
Summary of the invention
For above-mentioned problems of the prior art, the object of the present invention is to provide a kind of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of high strength.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A kind of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material, the composition of copper base alloy novel material comprises nanometer silicon carbide (SiC) and copper alloy (ZCuSn 3zn 11pb 4), wherein, each one-tenth of copper base alloy novel material is grouped into by volume per-cent and is respectively: nanometer silicon carbide (SiC): 8-12%, copper alloy (ZCuSn 3zn 11pb 4): 88-92%.
Further, each one-tenth of copper base alloy novel material is grouped into by volume per-cent and is respectively: nanometer silicon carbide (SiC): 8.5-11.5%, copper alloy (ZCuSn 3zn 11pb 4): 88.5-91.5%.
Further, the particle diameter of nanometer silicon carbide (SiC) is within the scope of 30 μm-100 μm.
Further, copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
A preparation method for above-mentioned Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material, comprises following steps:
Step 1: electrolytic copper, tin, zinc, lead are put into electric furnace melting according to part by weight;
Step 2: adopt the copper alloy (ZCuSn that Spike direct-reading spectrometer completes melting 3zn 11pb 4) liquid carries out composition detection;
Step 3: nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, then increasing the temperature to further and keep temperature and keep at maintenance temperature;
Step 4: insulation and casting, copper base alloy novel material melting completed insulation, adopts the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar;
Step 5: the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
Further, the smelting temperature in step 1 is 1050 DEG C-1100 DEG C, and smelting time is 3-5 hour.
Further, the maintenance temperature in step 3 is 1450 DEG C-1550 DEG C, and the hold-time is 10-20 minute.
Further, the soaking time in step 4 is 10-20 minute, and casting temp is 1300 DEG C-1350 DEG C.
Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of the present invention, is evenly distributed on existing copper alloy (ZCuSn by nanometer silicon carbide (SiC) material by certain technique means 3zn 11pb 4) in material, utilize nanometer silicon carbide (SiC) high rigidity, high-wearing feature and good self-lubricating and the large performance of hot strength, realize the further lifting of the performance of alloy material.Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of the present invention has than existing copper alloy (ZCuSn 3zn 11pb 4) intensity, hardness, wear resistance and erosion resistance that material is higher, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material provided by the invention, the composition of copper base alloy novel material comprises nanometer silicon carbide (SiC) and copper alloy (ZCuSn 3zn 11pb 4), wherein, each one-tenth of copper base alloy novel material is grouped into by volume per-cent and is respectively: nanometer silicon carbide (SiC): 8-12%, copper alloy (ZCuSn 3zn 11pb 4): 88-92%.
Nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is within the scope of 30 μm-100 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
The preparation method of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material provided by the invention, comprises following steps:
Step 1: according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1050 DEG C-1100 DEG C, and smelting time is 3-5 hour.
Step 2: adopt the copper alloy (ZCuSn that Spike direct-reading spectrometer completes melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Step 3: nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1450 DEG C-1550 DEG C further and keep 10-20 minute.
Step 4: insulation and casting, the copper base alloy novel material that melting is completed insulation 10-20 minute, adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1300 DEG C-1350 DEG C;
Step 5: the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
Embodiment one:
By volume per-cent is: nanometer silicon carbide (SiC): 8%, copper alloy (ZCuSn 3zn 11pb 4): 92% prepares raw material.Wherein nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is 30 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
First, according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1100 DEG C, and smelting time is 5 hours.
Then, the copper alloy (ZCuSn adopting Spike direct-reading spectrometer to complete melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Then, nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1550 DEG C further and keep 20 minutes.
Then, insulation and casting, copper base alloy novel material melting completed is incubated 20 minutes, and adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1350 DEG C;
Finally, the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
The metric of the intensity of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of preparation, hardness, wear resistance and erosion resistance is respectively than original copper alloy (ZCuSn 3zn 11pb 4) material improves 61%, 67%, 29% and 38%, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
Embodiment two:
By volume per-cent is: nanometer silicon carbide (SiC): 8.5%, copper alloy (ZCuSn 3zn 11pb 4): 91.5% prepares raw material.Wherein nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is 48 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
First, according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1080 DEG C, and smelting time is 4.5 hours.
Then, the copper alloy (ZCuSn adopting Spike direct-reading spectrometer to complete melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Then, nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1530 DEG C further and keep 18 minutes.
Then, insulation and casting, copper base alloy novel material melting completed is incubated 18 minutes, and adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1340 DEG C;
Finally, the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
The metric of the intensity of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of preparation, hardness, wear resistance and erosion resistance is respectively than original copper alloy (ZCuSn 3zn 11pb 4) material improves 65%, 70%, 32% and 40%, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
Embodiment three:
By volume per-cent is: nanometer silicon carbide (SiC): 10%, copper alloy (ZCuSn 3zn 11pb 4): 90% prepares raw material.Wherein nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is 61 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
First, according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1060 DEG C, and smelting time is 4 hours.
Then, the copper alloy (ZCuSn adopting Spike direct-reading spectrometer to complete melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Then, nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1500 DEG C further and keep 16 minutes.
Then, insulation and casting, copper base alloy novel material melting completed is incubated 16 minutes, and adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1320 DEG C;
Finally, the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
The metric of the intensity of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of preparation, hardness, wear resistance and erosion resistance is respectively than original copper alloy (ZCuSn 3zn 11pb 4) material improves 63%, 70%, 31% and 43%, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
Embodiment one:
By volume per-cent is: nanometer silicon carbide (SiC): 11.5%, copper alloy (ZCuSn 3zn 11pb 4): 88.5% prepares raw material.Wherein nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is 80 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
First, according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1070 DEG C, and smelting time is 3.5 hours.
Then, the copper alloy (ZCuSn adopting Spike direct-reading spectrometer to complete melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Then, nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1480 DEG C further and keep 15 minutes.
Then, insulation and casting, copper base alloy novel material melting completed is incubated 15 minutes, and adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1320 DEG C;
Finally, the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
The metric of the intensity of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of preparation, hardness, wear resistance and erosion resistance is respectively than original copper alloy (ZCuSn 3zn 11pb 4) material improves 66%, 71%, 32% and 41%, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
Embodiment five:
By volume per-cent is: nanometer silicon carbide (SiC): 12%, copper alloy (ZCuSn 3zn 11pb 4): 88% prepares raw material.Wherein nanometer silicon carbide (SiC) is obtained by known method, and the particle diameter of nanometer silicon carbide (SiC) is 100 μm.Copper alloy (ZCuSn 3zn 11pb 4) casting be standard according to GB GB/T1176-2013.
First, according to standard and the copper alloy (ZCuSn of GB GB/T1176-2013 3zn 11pb 4) chemical composition require electrolytic copper, tin, zinc, plumbous put into electric furnace melting according to part by weight, control copper alloy (ZCuSn according to the volume size of smelting furnace between smelting period 3zn 11pb 4) liquid volume is at less than 99% of melter size, smelting temperature is 1050 DEG C, and smelting time is 3 hours.
Then, the copper alloy (ZCuSn adopting Spike direct-reading spectrometer to complete melting 3zn 11pb 4) liquid carries out composition detection, to determine copper alloy (ZCuSn 3zn 11pb 4) chemical composition of liquid is within Standard scope.
Then, nanometer silicon carbide (SiC) powder is put into the copper alloy (ZCuSn be up to the standards 3zn 11pb 4) surface of liquid, open the shaking device of main frequency furnace and carry out stirring with Homogeneous phase mixing with graphite rod, increase the temperature to 1450 DEG C further and keep 10 minutes.
Then, insulation and casting, copper base alloy novel material melting completed is incubated 10 minutes, and adopt the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar, casting temp is 1300 DEG C;
Finally, the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
The metric of the intensity of Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material of preparation, hardness, wear resistance and erosion resistance is respectively than original copper alloy (ZCuSn 3zn 11pb 4) material improves 59%, 65%, 30% and 41%, thus expand original copper alloy (ZCuSn 3zn 11pb 4) material is in the ducted range of application of Nuclear steam.
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 (8)

1. a Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material, it is characterized in that, the composition of described copper base alloy novel material comprises nanometer silicon carbide and copper alloy ZCuSn 3zn 11pb 4, wherein, each one-tenth of described copper base alloy novel material is grouped into by volume per-cent and is respectively: described nanometer silicon carbide: 8-12%, copper alloy ZCuSn 3zn 11pb 4: 88-92%.
2. Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material according to claim 1, it is characterized in that, each one-tenth of described copper base alloy novel material is grouped into by volume per-cent and is respectively: described nanometer silicon carbide: 8.5-11.5%, copper alloy ZCuSn 3zn 11pb 4: 88.5-91.5%.
3. Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material according to claim 1, it is characterized in that, the particle diameter of described nanometer silicon carbide is within the scope of 30 μm-100 μm.
4. Nuclear steam pipeline high-strength nano level silicon carbide copper base alloy novel material according to claim 1, is characterized in that, described copper alloy ZCuSn 3zn 11pb 4casting be standard according to GB GB/T1176-2013.
5. the preparation method for high-strength nano level silicon carbide copper base alloy novel material of the Nuclear steam pipeline according to any one of the claims 1-4, comprises following steps:
Step 1: electrolytic copper, tin, zinc, lead are put into electric furnace melting according to part by weight;
Step 2: adopt the copper alloy ZCuSn that Spike direct-reading spectrometer completes melting 3zn 11pb 4liquid carries out composition detection;
Step 3: nano-grade silicon carbide powder is put into the copper alloy ZCuSn be up to the standards 3zn 11pb 4the surface of liquid, opens the shaking device of main frequency furnace and carries out stirring with Homogeneous phase mixing with graphite rod, then increases the temperature to further and keeps temperature and keep at maintenance temperature;
Step 4: insulation and casting, copper base alloy novel material melting completed insulation, adopts the mode of continuous casting that copper base alloy novel material is cast as copper base alloy novel material bar;
Step 5: the copper base alloy novel material bar cast is carried out surperficial Vehicle Processing process, and packs according to factory calibration.
6. preparation method according to claim 5, is characterized in that, the smelting temperature in step 1 is 1050 DEG C-1100 DEG C, and smelting time is 3-5 hour.
7. preparation method according to claim 5, is characterized in that, the maintenance temperature in step 3 is 1450 DEG C-1550 DEG C, and the hold-time is 10-20 minute.
8. preparation method according to claim 5, is characterized in that, the soaking time in step 4 is 10-20 minute, and casting temp is 1300 DEG C-1350 DEG C.
CN201510731404.2A 2015-11-02 2015-11-02 Novel high-strength nanoscale silicon carbide copper base alloy material for nuclear energy steam pipeline Pending CN105238951A (en)

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