CN103045904A - 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 the 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
Why copper alloy containing lead has good cutting ability and properties of antifriction and wear resistance, mainly is because lead exists with individual event at copper alloy, plays good chip breaking effect when cutting; Under the frictional wear environment, because plumbous shearing resistance is very low, the lead on copper alloy parts surface is so that the frictional coefficient of copper alloy containing lead is lower.So lead element more generally uses in brass alloys.But, but owing to contain lead, easily cause hot-shortly during hot-work, can only under cold conditions, process, difficulty of processing is large, causes cost higher.And along with the gradually raising of people's environmental protection consciousness, the lead-containing alloy rod is because its pollution to environment can't have been satisfied 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, formed by 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 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree-1300 degree are incubated to 1200 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 11cm-13cm to prevent its oxidation in the above;
Step 3: be incubated after 1.2-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 60 minutes, again be warming up to 1300 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm;
Step 5: the alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe;
Step 6: with ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
Further, the composition detection number of times is 3-5 time in the described step 3.
A kind of environmental-friendly lead-free silicon-containing alloy novel material is comprised 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, formed by 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 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1200 degree-1250 degree are incubated to 1150 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation;
Step 3: be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1350 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material 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, in the situation that does not increase cost, kept the smear metal performance of existing tinbronze, improved 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: such as tensile strength, yield strength, unit elongation etc. have more wide application prospect.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, 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, is 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.The preparation method is as follows: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree-1300 degree are incubated to 1200 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 11cm-13cm to prevent its oxidation in the above; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer the sample that takes out carried out composition check 3-5 time in stove, to determine that its alloying constituent is within specialized range; Further insulation is warming up to 1300 degree after 60 minutes again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm; The alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe; With ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
Adopt the environmental-friendly lead-free silicon-containing alloy novel material of aforesaid method preparation, traditional lead element is replaced with element silicon, in the situation that does not increase cost, not only kept the mechanical propertys such as cutting of existing tin bronze alloys, also satisfied the requirement of environmental protection.
Embodiment 2
A kind of environmental-friendly lead-free silicon-containing alloy novel material is comprised of following weight percentage component: 7% zinc, 6.8% tin, 2% silicon, surplus copper.The preparation method is as follows: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1300 degree are incubated to 1200 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 12cm to prevent its oxidation in the above; Be incubated after 1.2-1.5 hour, with the Spike direct-reading spectrometer of German import the sample that takes out carried out composition check 5 times in stove, to determine that its alloying constituent is within specialized range; Further insulation is warming up to 1300 degree after 60 minutes again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm; The alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe; With ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
Adopt the environmental-friendly lead-free silicon-containing alloy novel material of aforesaid method and proportioning preparation, traditional lead element is replaced with element silicon, in the situation that does not increase cost, not only satisfied the requirement of environmental protection, on the mechanical propertys such as machinability, also be 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.The preparation method is as follows: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree-1300 degree are incubated to 1200 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 11cm-13cm to prevent its oxidation in the above; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer the sample that takes out carried out composition check 3-5 time in stove, to determine that its alloying constituent is within specialized range; Further insulation is warming up to 1300 degree after 60 minutes again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm; The alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe; With ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
Adopt the environmental-friendly lead-free silicon-containing alloy novel material of aforesaid method preparation, traditional lead element is replaced with element silicon, in the situation that does not increase cost, not only kept the mechanical propertys such as cutting of existing tin bronze alloys, also satisfied 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.The preparation method is as follows: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree-1300 degree are incubated to 1200 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 11cm-13cm to prevent its oxidation in the above; Be incubated after 1.2-1.5 hour, with direct-reading spectrometer the sample that takes out carried out composition check 3-5 time in stove, to determine that its alloying constituent is within specialized range; Further insulation is warming up to 1300 degree after 60 minutes again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm; The alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe; With ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
Adopt the environmental-friendly lead-free silicon-containing alloy novel material of aforesaid method preparation, traditional lead element is replaced with element silicon, in the situation that does not increase cost, not only kept the mechanical propertys such as cutting of existing tin bronze alloys, also satisfied the requirement of environmental protection.
Embodiment 5
A kind of environmental-friendly lead-free silicon-containing alloy novel material is comprised 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.The preparation method is: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1200 degree-1250 degree are incubated to 1150 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation; Be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range; Further insulation is warming up to 1350 degree after 50-60 minute again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material of 2000mm.
Aforesaid method replaces with aluminium element with traditional lead element, and suitable interpolation phosphorus and element silicon, in the situation that does not increase cost, the smear metal performance that has not only kept existing tinbronze, improve the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: such 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 comprised of following weight percentage component: 0.3% phosphorus, 5% tin, 5% zinc, 2% aluminium, 0.56% silicon, surplus copper.The preparation method is as follows: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1200 degree-1250 degree are incubated to 1150 degree after the fusing fully; After the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation; Be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range; Further insulation is warming up to 1350 degree after 50-60 minute again, and opens the vibrating device of main frequency furnace, and adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, in the situation that does not increase cost, the smear metal performance that has not only kept existing tinbronze, improved the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: such 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 comprised of following weight percentage component: 0.01% phosphorus, 4% tin, 4% zinc, 1% aluminium, 0.3% silicon, surplus copper.The preparation method is as follows:
Step 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree are incubated to 1150 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation;
Step 3: be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1350 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, in the situation that does not increase cost, the smear metal performance that has not only kept existing tinbronze, improved the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: such 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 comprised of following weight percentage component: 0.5% phosphorus, 6% tin, 6% zinc, 3% aluminium, 0.8% silicon, surplus copper.The preparation method is as follows:
Step 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1200 degree-1250 degree are incubated to 1150 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation;
Step 3: be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1350 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material of 2000mm.
Aforesaid method adopts phosphorus, silicon, aluminium to substitute traditional lead element, in the situation that does not increase cost, the smear metal performance that has not only kept existing tinbronze, improved the environmental-protecting performance of this alloy, and can greatly put forward heavy alloyed mechanical property: such as tensile strength, yield strength, unit elongation etc. have more wide application prospect.See Table 1.
The unleaded silicon-containing alloy novel material of table 1 novel environment friendly performance (asking supplementary parameter)
The above embodiment has only expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.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 (8)
1. an environmental-friendly lead-free silicon-containing alloy novel material is characterized in that, comprises following weight part percentage ratio component: 6%-8% zinc, 6%-8% tin, 1%-3% silicon, surplus copper.
2. environmental-friendly lead-free silicon-containing alloy novel material according to claim 1 is characterized in that, is comprised of following weight percentage component: 7% zinc, 6.8% tin, 2% silicon, surplus copper.
3. the preparation method of environmental-friendly lead-free silicon-containing alloy novel material according to claim 1 and 2 is characterized in that, comprises following steps:
Step 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1250 degree-1300 degree are incubated to 1200 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, cladding thickness was about the high purity flaky graphite powder of 11cm-13cm to prevent its oxidation in the above;
Step 3: be incubated after 1.2-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 60 minutes, again be warming up to 1300 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 120mm, and length is the solid alloy bar material of 1000mm;
Step 5: the alloy bar material that the continuous casting casting is formed carries out surperficial turning with lathe;
Step 6: with ultrasonic reflectoscope copper rod is carried out slight crack and pore flaw detection, choose substandard product and melt down, with qualified product packing and warehouse-in.
4. the preparation method of environmental-friendly lead-free silicon-containing alloy novel material according to claim 3 is characterized in that, the composition detection number of times is 3-5 time in the described step 3.
5. environmental-friendly lead-free silicon-containing alloy novel material according to claim 1 is characterized in that, is comprised 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.
6. environmental-friendly lead-free silicon-containing alloy novel material according to claim 1 is characterized in that, is comprised of following weight percentage component: 0.3% phosphorus, 5% tin, 5% zinc, 2% aluminium, 0.56% silicon, surplus copper.
7. according to claim 5 or the preparation method of 6 described environmental-friendly lead-free silicon-containing alloy novel materials, it is characterized in that, comprise following steps:
Step 1: according to proportioning each component is placed in the main frequency furnace, degree of being heated to 1200 degree-1250 degree are incubated to 1150 degree after the fusing fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirred, the cladding thickness high purity flaky graphite powder that is about 10-15cm prevented its oxidation in the above, and continues insulation;
Step 3: be incubated after 1-1.5 hour, with direct-reading spectrometer the sample that takes out carried out the composition check in stove, determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1350 degree, and open the vibrating device of main frequency furnace, adopting the horizontal continuous casting method casting to make external diameter is 110mm, and length is the solid alloy bar material of 2000mm.
8. the preparation method of environmental-friendly lead-free silicon-containing alloy novel material according to claim 7 is characterized in that, described step 3 kind 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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