CN102321830B - Low-smelting point high-strength lead-bismuth rare earth alloy and preparation method thereof - Google Patents
Low-smelting point high-strength lead-bismuth rare earth alloy and preparation method thereof Download PDFInfo
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- CN102321830B CN102321830B CN2011103238643A CN201110323864A CN102321830B CN 102321830 B CN102321830 B CN 102321830B CN 2011103238643 A CN2011103238643 A CN 2011103238643A CN 201110323864 A CN201110323864 A CN 201110323864A CN 102321830 B CN102321830 B CN 102321830B
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Abstract
The invention provides a low-smelting point high-strength lead-bismuth rare earth alloy and a preparation method thereof. The composite material has good properties such as low smelting point, high strength and the like. The preparation method is simple, low in production cost and suitable for industrial production. The low-smelting point high-strength lead-bismuth rare earth alloy comprises the following components in percentage by weight: 55 to 59 percent of Bi, 0.01 to 0.03 percent of Sr, 0.01 to 0.03 percent of Rb, 0.01 to 0.03 percent of Ce, 0.01 to 0.03 percent of Te and the balance of Pb.
Description
Technical field:
The invention belongs to metal material field, relate to plumbous Bi rare earth alloy of a kind of lower melting point HS and preparation method thereof.
Background technology:
The CN201010301331.0 disclosure of the Invention a kind of tin-bismuth solder with low melting point and preparation method thereof; It is characterized in that: be Sn, Bi, Ag ternary hypoeutectic alloy scolder; The weight percent of each chemical ingredients is in the welding flux alloy: Sn is 44～58wt%; Bi is 42～56wt%, and Ag is 0.25～1wt%.Tin-bismuth solder melting range of the present invention is controlled in 140 ℃-168 ℃, have the advantage that fusing point is low, Joint Strength is high and cost is low.Tin-bismuth solder tensile strength of the present invention is 75-88Mpa, and melting range is controlled in 140 ℃ 168 ℃.
But the tensile strength of this material is low, and use properties is restricted.
CN200810069745.8 number invention provides that a kind of electron trade uses can suppress the lead solder containing lead of evaporable environment-friendly type at high temperature; It is made up of following component by mass percent: Ag 0～4.0wt%; Sb 0～3.0wt%; With among Ni, Al, Bi, Ga, In, P, the Ti one or more, the amount of every kind of element is 0.0001%-0.2%, and surplus is Sn and Pb.Wherein the total amount of elements such as Ni, Al, Bi, Ga, In, P, Ti is no more than 0.3wt% at the most, and multiple combination is preferably arranged, like Ni, P combination, and Ni, P and Ti combination, Ni, P and Ga combination, or only select Ni, Al etc.
But the component of this alloy is various, and the complex process that causes is not easy to produce.Ni, Ti element fusing point height are not easy to the founding alloy, can cause alloy melting point to improve in addition; Ga, In cost height; P is inflammable element, is difficult for the founding alloy.
Summary of the invention:
The object of the invention is exactly to above-mentioned technological deficiency, and a kind of lower melting point, high-intensity plumbous Bi rare earth alloy are provided, and this matrix material has that fusing point is low, the high good performance of intensity.
Another object of the present invention provides the plumbous Bi rare earth alloy preparation method of a kind of lower melting point HS, and this preparing method's technology is simple, and production cost is low, is suitable for suitability for industrialized production.
The objective of the invention is to realize through following technical scheme:
The plumbous Bi rare earth alloy of a kind of lower melting point HS, it is characterized in that: the quality percentage composition of each composition: Bi is 55～59wt% in this alloy, Sr is 0.01～0.03wt%; Rb is 0.01～0.03wt%; Ce is 0.01～0.03wt%, and Te is 0.01～0.03wt%, and surplus is Pb.
The plumbous Bi rare earth alloy preparation method of a kind of lower melting point HS, it is characterized in that: at first prepare burden according to above-mentioned alloying constituent, the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%; Raw material is put into the vacuum induction furnace melting; Smelting temperature is 460-490 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 450-470 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter; The rotational line speed of runner wheel rim is 9～11m/s.
Alloy material of the present invention has following beneficial effect:
Alloy of the present invention has the advantage that fusing point is low, Joint Strength is high and cost is low.The principal element of solder alloy of the present invention is near the eutectic composition alloy, and fusing point is low, and use characteristics is good; Element in the alloy can form BiSr2, SrPb3, and RbBi2, RbPb3 etc. plays strengthening effect to alloy, thereby intensity is high, and use properties is good.Sr, Te and Ce fusing point are not high in addition, and the spontaneous generation layer of surface modified membrane of ability significantly suppresses volatilization plumbous under the high temperature after fusing, and in use envrionment conditions is good, and operator ' s health is not had influence, and is safe and convenient to use, and cost is low.
Alloy of the present invention adopts the fast quenching mode to cool off in solidifying, and can effectively reduce the phase in the alloy, guarantees the uniform distribution of chemical ingredients simultaneously, has so not only guaranteed welding technological properties, has also guaranteed the mechanical property of alloy.
Alloy property of the present invention is seen table 1.
In the present invention's preparation, without precious metals silver, institute's raw materials cost of getting reduces; Alloy has guaranteed the homogeneity of alloying constituent, tissue and performance through cooling fast in addition, has therefore also just guaranteed the quality of alloy.Alloy of the present invention has the advantage that fusing point is low, Joint Strength is high and cost is low.So the degree of freedom of using is bigger, for range of application and the further joint performance of optimizing that enlarges this welding process all provides possibility.This alloy preparation technology is easy, and the alloy of production has good performance, is convenient to very much suitability for industrialized production.
Description of drawings:
The organization chart of the plumbous Bi rare earth alloy of the lower melting point HS that Fig. 1 makes for the embodiment of the invention one.
Can find out that by Fig. 1 its dense structure is even.
Embodiment:
Embodiment one:
The plumbous Bi rare earth alloy preparation method of lower melting point HS of the present invention, process may further comprise the steps:
Be 55wt% according to Bi at first, Sr is 0.01wt%, and Rb is 0.01wt%, and Ce is 0.01wt%, and Te is 0.01wt%, surplusly prepares burden for the alloying constituent of Pb, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 480 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 470 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter; The rotational line speed of runner wheel rim is 11m/s.
Embodiment two:
The plumbous Bi rare earth alloy preparation method of lower melting point HS of the present invention, process may further comprise the steps:
Be 59wt% according to Bi at first, Sr is 0.03wt%, and Rb is 0.03wt%, and Ce is 0.03wt%, and Te is 0.03wt%, surplusly prepares burden for the alloying constituent of Pb, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 470 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 470 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the alloy band of 300-340 micron, and width is the 3-6 millimeter; The rotational line speed of runner wheel rim is 10m/s.
Embodiment three:
The plumbous Bi rare earth alloy preparation method of lower melting point HS of the present invention, process may further comprise the steps:
Be 57wt% according to Bi at first, Sr is 0.02wt%, and Rb is 0.02wt%, and Ce is 0.02wt%, and Te is 0.02wt%, surplusly prepares burden for the alloying constituent of Pb, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 490 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 450 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter; The rotational line speed of runner wheel rim is 10m/s.
Embodiment four: (proportioning components is instance in this case scope of design not)
The plumbous Bi rare earth alloy preparation method of lower melting point HS of the present invention, process may further comprise the steps:
Be 50wt% according to Bi at first, Sr is 0.005wt%, and Rb is 0.004wt%, and Ce is 0.002wt%, and Te is 0.008wt%, surplusly prepares burden for the alloying constituent of Pb, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 480 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 460 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter; The rotational line speed of runner wheel rim is 9～11m/s.
Embodiment five: (proportioning components is instance in this case scope of design not)
The plumbous Bi rare earth alloy preparation method of lower melting point HS of the present invention, process may further comprise the steps:
Be 61wt% according to Bi at first, Sr is 0.05wt%, and Rb is 0.05wt%, and Ce is 0.04wt%, and Te is 0.05wt%, surplusly prepares burden for the alloying constituent of Pb, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 460-490 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 450-470 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, and above-mentioned mother alloy is placed in the tubular type crucible melt, under ar gas acting, be the runner edge contact of ejection and rotation the hole of 1mm behind the alloy molten from the crucible bottom diameter; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter; The rotational line speed of runner wheel rim is 9～11m/s.
In conjunction with each performance of products parameter in the following table:
Each performance of products parameter of table 1
Visible by last table, Bi, Sr, Rb, Ce, Te add-on improve, and tensile strength improves.But add-on is too much, and formed compound increases, and can destroy the intensity of alloy.The performance data of product 4,5 shows that Bi, Sr, Rb, Ce, Te add-on do not reach the due tensile strength of alloy less than scope of design.Add-on is too high, and compound is too much, can destroy the intensity of alloy.Value is not in scope of design, and the fusing point of alloy can raise.
Claims (4)
1. the plumbous Bi rare earth alloy of a lower melting point HS, it is characterized in that: the quality percentage composition of each composition: Bi is 55～59wt% in this alloy, Sr is 0.01～0.03wt%; Rb is 0.01～0.03wt%; Ce is 0.01～0.03wt%, and Te is 0.01～0.03wt%, and surplus is Pb.
2. the plumbous Bi rare earth alloy of lower melting point HS according to claim 1 is characterized in that: above-mentioned alloy is band shape,
The thickness of alloy band is the 300-340 micron, and width is the 3-6 millimeter.
3. the plumbous Bi rare earth alloy preparation method of a lower melting point HS, it is characterized in that: its preparation process may further comprise the steps:
Be 55～59wt% according to Bi at first, Sr is 0.01～0.03wt%, and Rb is 0.01～0.03wt%; Ce is 0.01～0.03wt%; Te is 0.01～0.03wt%, and surplus is that the alloying constituent of Pb is prepared burden, and the purity of raw material Bi, Sr, Rb, Ce, Te, Pb is all greater than 99.9%;
Raw material is put into the vacuum induction furnace melting; Smelting temperature is 460-490 ℃, obtains mother alloy, and the remelting tubular type crucible of putting into the vacuum induction quick quenching furnace then carries out remelting; Remelting temperature is 450-470 ℃; The bottom of remelting tubular type crucible places 2-4mm place on the quick quenching furnace runner wheel rim, above-mentioned mother alloy is placed in the tubular type crucible melt, ejection and the runner edge contact of rotating from the hole of crucible bottom under ar gas acting behind the alloy molten; Forming thickness is the 300-340 micron, and width is the alloy band of 3-6 millimeter.
4. according to the plumbous Bi rare earth alloy preparation method of the said lower melting point HS of claim 3, it is characterized in that: the diameter in remelting tubular type crucible bottom hole is 1mm; The rotational line speed of quick quenching furnace runner wheel rim is 9～11m/s.
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| CN106521199B (en) * | 2016-12-15 | 2017-12-29 | 西京学院 | A kind of portable fusible alloy filling recovery system and its application method |
| CN109166685A (en) * | 2018-08-16 | 2019-01-08 | 安徽信息工程学院 | magnetic core composite material |
| CN109087770A (en) * | 2018-08-16 | 2018-12-25 | 安徽信息工程学院 | magnetic function material |
| CN108922719A (en) * | 2018-08-16 | 2018-11-30 | 安徽信息工程学院 | The preparation method of inorganic functional composite material |
| CN108922720A (en) * | 2018-08-16 | 2018-11-30 | 安徽信息工程学院 | The preparation method of magnetic core composite material |
| CN109102980A (en) * | 2018-08-16 | 2018-12-28 | 安徽信息工程学院 | The preparation method of Ferrite Material |
| CN110004323B (en) * | 2019-03-29 | 2020-08-14 | 北京理工大学 | Low-melting-point high-strength thermosensitive material and preparation method thereof |
| CN111590233B (en) * | 2020-06-11 | 2021-12-31 | 中山翰华锡业有限公司 | High-weldability environment-friendly superfine solder wire for intelligent manipulator welding and preparation method thereof |
| CN114807676B (en) * | 2022-05-20 | 2023-08-29 | 赣州晨光稀土新材料有限公司 | Sn-Bi alloy material and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279406A (en) * | 2008-05-27 | 2008-10-08 | 重庆工学院 | Solder containing lead for inhibiting volatilization of lead without environmental pollution |
| CN101844280A (en) * | 2010-02-08 | 2010-09-29 | 岳阳金正电子材料有限公司 | Tin-bismuth solder with low melting point and preparation method thereof |
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| JPS6072650A (en) * | 1983-09-30 | 1985-04-24 | Toshiba Corp | Production of low melting alloy wire for sealing fluorescent lamp |
| JP2009506203A (en) * | 2005-08-24 | 2009-02-12 | フライズ メタルズ インコーポレイテッド | Solder alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279406A (en) * | 2008-05-27 | 2008-10-08 | 重庆工学院 | Solder containing lead for inhibiting volatilization of lead without environmental pollution |
| CN101844280A (en) * | 2010-02-08 | 2010-09-29 | 岳阳金正电子材料有限公司 | Tin-bismuth solder with low melting point and preparation method thereof |
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| JP昭60-72650A 1985.04.24 |
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Address after: 214135 Jiangsu city of Wuxi province innovation building No. 97 Wuxi district two Linghu Avenue South Building Room 101 Patentee after: Nanjing University of Information Science and Technology Address before: 210044 Nanjing City, Pukou Province, Nanjing Road, No. 219, No. six, No. Patentee before: Nanjing University of Information Science and Technology |
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Effective date of registration: 20160726 Address after: 225700, Taizhou City, Jiangsu province Xinghua City Town Housing Industry Park Patentee after: Taizhou Jindongfang Special Steel Manufacturing Co., Ltd. Address before: 214135 Jiangsu city of Wuxi province innovation building No. 97 Wuxi district two Linghu Avenue South Building Room 101 Patentee before: Nanjing University of Information Science and Technology |
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