CN103045904B - New environment-friendly lead-free silicon-containing alloy material and preparation method thereof - Google Patents
New environment-friendly lead-free silicon-containing alloy material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a new environment-friendly lead-free silicon-containing alloy material. The new environment-friendly lead-free silicon-containing alloy material comprises the following components in percentage by weight: 6-8 percent of zinc, 6-8 percent of tin, 1-3 percent of silicon and the balance of copper. By the new material, the traditional lead element is replaced by a silicon element; under the condition that cost is not increased, the chip cutting performance of the existing tin bronze is preserved, and the environment protection performance of the alloy is improved; and phosphorus and aluminium elements are properly added, based on the advantages, the mechanical performance of the alloy also can be greatly improved, such as tensile strength, yield strength and elongation rate, and the new material has a wide application prospect.
Description
Technical field
The present invention relates to alloy bar field, particularly relate to a kind of environmental-friendly lead-free silicon-containing alloy novel material, and the preparation method of this novel material.
Background technology
The cutting ability why copper alloy containing lead has had and properties of antifriction and wear resistance, mainly because lead exists with individual event at copper alloy, play good chip breaking effect when cutting; Under frictional wear environment, because the shearing resistance of lead is very low, the lead on copper alloy parts surface makes the frictional coefficient of copper alloy containing lead lower.So lead element more generally uses in brass alloys.But, but due to containing plumbous, easily cause hot-short during hot-work, can only process in the cold state, difficulty of processing is large, causes cost higher.And along with the raising gradually of people's environmental protection consciousness, lead-containing alloy rod, because it is to the pollution of environment, cannot meet the requirement of domestic and international high-end market.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of environmental-friendly lead-free silicon-containing alloy novel material, and the preparation method of this novel material.
For achieving the above object, technical scheme provided by the present invention is as follows:
A kind of environmental-friendly lead-free silicon-containing alloy novel material, comprises following weight part percentage ratio component: 6%-8% zinc, 6%-8% tin, 1%-3% silicon, surplus copper.
Preferably, be made up of following weight percentage component: 7% zinc, 6.8% tin, 2% silicon, surplus copper.
The preparation method of above-mentioned environmental-friendly lead-free silicon-containing alloy novel material, comprises following steps:
Step one: each component is placed in main frequency furnace according to proportioning, after degree of being heated to 1250 degree of-1300 degree melts completely, insulation is to 1200 degree;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, the high purity flaky graphite powder that cladding thickness is about 11cm-13cm is in the above oxidized to prevent it;
Step 3: be incubated after 1.2-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, to determine that its alloying constituent is within specialized range;
Step 4: insulation is after 60 minutes further, is again warming up to 1300 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm;
Step 5: the alloy bar material lathe of continuous Casting is carried out surperficial turning;
Step 6: with ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
Further, in described step 3, composition detection number of times is 3-5 time.
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 0.01-0.5% phosphorus, 4-6% tin, 4-6% zinc, 1-3% aluminium, 0.3-0.8% silicon, surplus copper.
Preferably, be made up of following weight percentage component: 0.3% phosphorus, 5% tin, 5% zinc, 2% aluminium, 0.56% silicon, surplus copper.
The preparation method of above-mentioned environmental-friendly lead-free silicon-containing alloy novel material, comprises following steps:
Step one: each component is placed in main frequency furnace according to proportioning, after degree of being heated to 1200 degree of-1250 degree melts completely, insulation is to 1150 degree;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, the high purity flaky graphite powder that cladding thickness is about 10-15cm in the above prevents it to be oxidized, and continues insulation;
Step 3: be incubated after 1-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, determines that its alloying constituent is within specialized range;
Step 4: insulation is after 50-60 minute further, is again warming up to 1350 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
Further, described step 3 kind composition detection number of times is 3 times.
Adopt above-mentioned technique effect, beneficial effect of the present invention has:
(1) traditional lead element is replaced with element silicon, when not increasing cost, remaining the chip performance of existing tinbronze, improve the environmental-protecting performance of this alloy.
(2) suitable interpolation phosphorus and aluminium element, on the basis of above-mentioned advantage, can also greatly put forward heavy alloyed mechanical property: as tensile strength, yield strength, unit elongation etc., have more wide application prospect.
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.
Embodiment 1
A kind of environmental-friendly lead-free silicon-containing alloy novel material, comprises following weight part percentage ratio component: 6%-8% zinc, 6%-8% tin, 1%-3% silicon, surplus copper.Preparation method is as follows: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1250 degree of-1300 degree melts completely, insulation is to 1200 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 11cm-13cm is in the above oxidized to prevent it; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer, composition inspection 3-5 time carried out, to determine that its alloying constituent is within specialized range to the sample taken out in stove; Further insulation, after 60 minutes, is warming up to 1300 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm; The alloy bar material lathe of continuous Casting is carried out surperficial turning; With ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
The environmental-friendly lead-free silicon-containing alloy novel material adopting aforesaid method to prepare, replaces with element silicon by traditional lead element, when not increasing cost, not only remaining the mechanical propertys such as the cutting of existing tin bronze alloys, also meeting the requirement of environmental protection.
Embodiment 2
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 7% zinc, 6.8% tin, 2% silicon, surplus copper.Preparation method is as follows: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1300 degree melts completely, insulation is to 1200 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 12cm is in the above oxidized to prevent it; Be incubated after 1.2-1.5 hour, with the Spike direct-reading spectrometer of German import, composition carried out to the sample taken out in stove and check 5 times, to determine that its alloying constituent is within specialized range; Further insulation, after 60 minutes, is warming up to 1300 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm; The alloy bar material lathe of continuous Casting is carried out surperficial turning; With ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
The environmental-friendly lead-free silicon-containing alloy novel material adopting aforesaid method and proportioning to prepare, replaces with element silicon by traditional lead element, when not increasing cost, not only meeting the requirement of environmental protection, the mechanical propertys such as machinability are also better than existing tin bronze alloys.
Embodiment 3
A kind of environmental-friendly lead-free silicon-containing alloy novel material, comprises following weight part percentage ratio component: 6% zinc, 6% tin, 1% silicon, surplus copper.Preparation method is as follows: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1250 degree of-1300 degree melts completely, insulation is to 1200 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 11cm-13cm is in the above oxidized to prevent it; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer, composition inspection 3-5 time carried out, to determine that its alloying constituent is within specialized range to the sample taken out in stove; Further insulation, after 60 minutes, is warming up to 1300 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm; The alloy bar material lathe of continuous Casting is carried out surperficial turning; With ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
The environmental-friendly lead-free silicon-containing alloy novel material adopting aforesaid method to prepare, replaces with element silicon by traditional lead element, when not increasing cost, not only remaining the mechanical propertys such as the cutting of existing tin bronze alloys, also meeting the requirement of environmental protection.
Embodiment 4
A kind of environmental-friendly lead-free silicon-containing alloy novel material, comprises following weight part percentage ratio component: 8% zinc, 8% tin, 3% silicon, surplus copper.Preparation method is as follows: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1250 degree of-1300 degree melts completely, insulation is to 1200 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 11cm-13cm is in the above oxidized to prevent it; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer, composition inspection 3-5 time carried out, to determine that its alloying constituent is within specialized range to the sample taken out in stove; Further insulation, after 60 minutes, is warming up to 1300 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm; The alloy bar material lathe of continuous Casting is carried out surperficial turning; With ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
The environmental-friendly lead-free silicon-containing alloy novel material adopting aforesaid method to prepare, replaces with element silicon by traditional lead element, when not increasing cost, not only remaining the mechanical propertys such as the cutting of existing tin bronze alloys, also meeting the requirement of environmental protection.
Embodiment 5
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 0.01-0.5% phosphorus, 4-6% tin, 4-6% zinc, 1-3% aluminium, 0.3-0.8% silicon, surplus copper.Preparation method is: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1200 degree of-1250 degree melts completely, insulation is to 1150 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 10-15cm in the above prevents it to be oxidized, and continues insulation; Be incubated after 1-1.5 hour, with direct-reading spectrometer, composition inspection carried out to the sample taken out in stove, determine that its alloying constituent is within specialized range; Further insulation, after 50-60 minute, is warming up to 1350 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
Traditional lead element is replaced with aluminium element by aforesaid method, and suitable interpolation phosphorus and element silicon, when not increasing cost, not only remain the chip performance of existing tinbronze, improve the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: as tensile strength, yield strength, unit elongation etc., have more wide application prospect.
Embodiment 6
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 0.3% phosphorus, 5% tin, 5% zinc, 2% aluminium, 0.56% silicon, surplus copper.Preparation method is as follows: be placed in main frequency furnace according to proportioning by each component, and after degree of being heated to 1200 degree of-1250 degree melts completely, insulation is to 1150 degree; After fully being stirred by the alloy liquid melted completely with graphite rod, the high purity flaky graphite powder that cladding thickness is about 10-15cm in the above prevents it to be oxidized, and continues insulation; Be incubated after 1-1.5 hour, with direct-reading spectrometer, composition inspection carried out to the sample taken out in stove, determine that its alloying constituent is within specialized range; Further insulation, after 50-60 minute, is warming up to 1350 degree again, and opens the vibrating device of main frequency furnace, and adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, when not increasing cost, not only remain the chip performance of existing tinbronze, improve the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: as tensile strength, yield strength, unit elongation etc., have more wide application prospect.
Embodiment 7
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 0.01% phosphorus, 4% tin, 4% zinc, 1% aluminium, 0.3% silicon, surplus copper.Preparation method is as follows:
Step one: each component is placed in main frequency furnace according to proportioning, after degree of being heated to 1250 degree melts completely, insulation is to 1150 degree;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, the high purity flaky graphite powder that cladding thickness is about 10-15cm in the above prevents it to be oxidized, and continues insulation;
Step 3: be incubated after 1-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, determines that its alloying constituent is within specialized range;
Step 4: insulation is after 50-60 minute further, is again warming up to 1350 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, when not increasing cost, not only remain the chip performance of existing tinbronze, improve the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: as tensile strength, yield strength, unit elongation etc., have more wide application prospect.
Embodiment 8
A kind of environmental-friendly lead-free silicon-containing alloy novel material, is made up of following weight percentage component: 0.5% phosphorus, 6% tin, 6% zinc, 3% aluminium, 0.8% silicon, surplus copper.Preparation method is as follows:
Step one: each component is placed in main frequency furnace according to proportioning, after degree of being heated to 1200 degree of-1250 degree melts completely, insulation is to 1150 degree;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, the high purity flaky graphite powder that cladding thickness is about 10-15cm in the above prevents it to be oxidized, and continues insulation;
Step 3: be incubated after 1-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, determines that its alloying constituent is within specialized range;
Step 4: insulation is after 50-60 minute further, is again warming up to 1350 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, when not increasing cost, not only remain the chip performance of existing tinbronze, improve the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: as tensile strength, yield strength, unit elongation etc., have more wide application prospect.In table 1.
Table 1 novel environment friendly unleaded silicon-containing alloy novel material performance (asking supplementary parameter)
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.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. an environmental-friendly lead-free silicon-containing alloy novel material, is characterized in that, is made up of: 8% zinc, 8% tin, 3% silicon, surplus copper following weight percentage component.
2. a preparation method for environmental-friendly lead-free silicon-containing alloy novel material according to claim 1, is characterized in that, comprise following steps:
Step one: be placed in main frequency furnace by each component according to proportioning, is heated to be incubated to 1200 degree after 1250 degree of-1300 degree melts completely;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, cladding thickness is that the high purity flaky graphite powder of 11cm-13cm is oxidized to prevent it in the above;
Step 3: be incubated after 1.2-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, to determine that its alloying constituent is within specialized range;
Step 4: insulation is after 60 minutes further, is again warming up to 1300 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar of 1000mm;
Step 5: the alloy bar material lathe of continuous Casting is carried out surperficial turning;
Step 6: with ultrasonic reflectoscope, slight crack and pore flaw detection are carried out to copper rod, choose substandard product and melt down, qualified product are packed and puts in storage.
3. the preparation method of environmental-friendly lead-free silicon-containing alloy novel material according to claim 2, is characterized in that, in described step 3, composition detection number of times is 3-5 time.
4. an environmental-friendly lead-free silicon-containing alloy novel material, is characterized in that, is made up of: 0.3% phosphorus, 5% tin, 5% zinc, 2% aluminium, 0.56% silicon, surplus copper following weight percentage component.
5. an environmental-friendly lead-free silicon-containing alloy novel material, is characterized in that, is made up of: 0.5% phosphorus, 6% tin, 6% zinc, 3% aluminium, 0.8% silicon, surplus copper following weight percentage component.
6. a preparation method for the environmental-friendly lead-free silicon-containing alloy novel material described in claim 4 or 5, is characterized in that, comprise following steps:
Step one: be placed in main frequency furnace by each component according to proportioning, is heated to be incubated to 1150 degree after 1200 degree of-1250 degree melts completely;
Step 2: after the alloy liquid melted completely fully being stirred with graphite rod, cladding thickness is that the high purity flaky graphite powder of 10-15cm prevents it to be oxidized in the above, and continues insulation;
Step 3: be incubated after 1-1.5 hour, carry out composition inspection with direct-reading spectrometer to the sample taken out in stove, determines that its alloying constituent is within specialized range;
Step 4: insulation is after 50-60 minute further, is again warming up to 1350 degree, and opens the vibrating device of main frequency furnace, adopting horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar of 2000mm.
7. the preparation method of environmental-friendly lead-free silicon-containing alloy novel material according to claim 6, is characterized in that, in described step 3, composition detection number of times is 3 times.
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| CN104630553A (en) * | 2015-01-27 | 2015-05-20 | 苏州金仓合金新材料有限公司 | Environment-friendly lead-free novel alloy material pipe and preparation method thereof |
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| CN106282655A (en) * | 2016-08-09 | 2017-01-04 | 苏州金仓合金新材料有限公司 | A kind of antimony gunmetal alloy bar for high-speed railway equipment and preparation method thereof |
| CN106119596A (en) * | 2016-08-30 | 2016-11-16 | 芜湖楚江合金铜材有限公司 | A kind of high performance copper alloy wire of environmental-friendly lead-free and processing technique thereof |
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