CN111468860A - High-temperature tin bar and preparation method thereof - Google Patents
High-temperature tin bar and preparation method thereof Download PDFInfo
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- CN111468860A CN111468860A CN202010303521.XA CN202010303521A CN111468860A CN 111468860 A CN111468860 A CN 111468860A CN 202010303521 A CN202010303521 A CN 202010303521A CN 111468860 A CN111468860 A CN 111468860A
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- tin
- alloy
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- copper
- nickel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400 degrees C
- B23K35/262—Sn as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of tin solder, and discloses a high-temperature tin bar which comprises the following components in percentage by weight: 97 to 99 percent of tin, 0.70 to 2.0 percent of copper, 0.05 to 0.7 percent of stibium, 0.05 to 0.15 percent of nickel and 0.05 to 0.2 percent of high-temperature oxidation-resistant metal; also discloses a preparation method thereof, S1, preparing nickel alloy; s2, preparing a copper alloy: adding tin and copper into a frequency conversion furnace, heating to 600-900 ℃, stirring the molten tin-copper alloy liquid after the tin and copper are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-copper alloy containing 10-20% of copper; s3, molten alloy: weighing tin-nickel alloy, tin-copper alloy and antimony according to the weight percentage, adding the tin-nickel alloy, the tin-copper alloy and the antimony into a smelting furnace, heating to 450-500 ℃, stirring the alloy molten liquid to form vortex after the alloy molten liquid is completely dissolved, and continuously stirring for 15 min; s4, adding high-temperature antioxidant metal: cooling the smelting furnace to 300-350 ℃, adding high-temperature antioxidant metal, completely melting, and keeping the temperature to fully stir for 10-20 min; and S5, preparing the high-temperature lead-free tin bar. The invention has the advantages of high temperature resistance, good oxidation resistance effect and strong fluidity.
Description
Technical Field
The invention relates to the technical field of tin solder, in particular to a high-temperature tin bar and a preparation method thereof.
Background
The operation temperature of high-temperature tin dipping of a transformer inductor, a demagnetizing coil, an aluminum-copper enameled wire, a relay, an electromagnetic filter and the like needs to be 400-500 ℃, the performance of a common tin bar can be stable only in an environment of lower than 280 ℃ after welding, the tin surface is oxidized quickly and has a blue surface and more tin slag, and the tin bar is welded with black spots, yellowed, not smooth, connected with tin and poor in liquidity. Resulting in failure of work, high defective rate, etc. The invention provides a high-temperature tin bar which solves the defects of the existing lead-free tin bar.
Disclosure of Invention
The invention aims to provide a high-temperature tin bar and a preparation method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-temperature tin bar comprises the following components in percentage by weight: 97 to 99 percent of tin, 0.70 to 2.0 percent of copper, 0.05 to 0.7 percent of stibium, 0.05 to 0.15 percent of nickel and 0.05 to 0.2 percent of high-temperature oxidation resistant metal.
As a further scheme of the invention: the high-temperature oxidation-resistant metal is an alloy of tin and phosphorus.
A preparation method of a high-temperature tin bar comprises the following steps:
s1, preparing a nickel alloy: adding tin and nickel into a frequency conversion furnace, heating to 800-1100 ℃, stirring the tin-nickel alloy molten liquid after the tin and nickel are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-nickel alloy containing 10-20% of nickel;
s2, preparing a copper alloy: adding tin and copper into a frequency conversion furnace, heating to 600-900 ℃, stirring the molten tin-copper alloy liquid after the tin and copper are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-copper alloy containing 10-20% of copper;
s3, molten alloy: weighing tin-nickel alloy, tin-copper alloy and antimony according to the weight percentage, adding the tin-nickel alloy, the tin-copper alloy and the antimony into a smelting furnace, heating to 450-500 ℃, stirring the alloy molten liquid to form vortex after the alloy molten liquid is completely dissolved, and continuously stirring for 15 min;
s4, adding high-temperature antioxidant metal: cooling the smelting furnace to 300-350 ℃, adding high-temperature antioxidant metal, completely melting, and keeping the temperature to fully stir for 10-20 min;
s5, preparing a high-temperature lead-free tin bar: and reducing the temperature of the smelting furnace to 280 ℃, and casting the molten liquid into a mould to obtain the high-temperature tin bar.
Compared with the prior art, the invention has the beneficial effects that: the high-temperature tin bar has the advantages of high temperature resistance, good oxidation resistance effect and strong liquidity.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, the high-temperature tin bar comprises the following components in percentage by weight: 97 to 99 percent of tin, 0.70 to 2.0 percent of copper, 0.05 to 0.7 percent of stibium, 0.05 to 0.15 percent of nickel and 0.05 to 0.2 percent of high-temperature oxidation resistant metal.
The high-temperature oxidation-resistant metal is an alloy of tin and phosphorus.
A preparation method of a high-temperature tin bar comprises the following steps:
s1, preparing a nickel alloy: adding tin and nickel into a frequency conversion furnace, heating to 800-1100 ℃, stirring the tin-nickel alloy molten liquid after the tin and nickel are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-nickel alloy containing 10-20% of nickel;
s2, preparing a copper alloy: adding tin and copper into a frequency conversion furnace, heating to 600-900 ℃, stirring the molten tin-copper alloy liquid after the tin and copper are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-copper alloy containing 10-20% of copper;
s3, molten alloy: weighing tin-nickel alloy, tin-copper alloy and antimony according to the weight percentage, adding the tin-nickel alloy, the tin-copper alloy and the antimony into a smelting furnace, heating to 450-500 ℃, stirring the alloy molten liquid to form vortex after the alloy molten liquid is completely dissolved, and continuously stirring for 15 min;
s4, adding high-temperature antioxidant metal: cooling the smelting furnace to 300-350 ℃, adding high-temperature antioxidant metal, completely melting, and keeping the temperature to fully stir for 10-20 min;
s5, preparing a high-temperature lead-free tin bar: and reducing the temperature of the smelting furnace to 280 ℃, and casting the molten liquid into a mould to obtain the high-temperature tin bar.
The high temperature tin bar antioxidants prepared in the examples were subjected to an oxidation resistance test: the surface did not change color at 480 ℃ for four hours.
According to the test result, the high-temperature oxidation-resistant tin bar prepared by the embodiment of the invention has excellent oxidation resistance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The high-temperature tin bar is characterized by comprising the following components in percentage by weight: 97 to 99 percent of tin, 0.70 to 2.0 percent of copper, 0.05 to 0.7 percent of stibium, 0.05 to 0.15 percent of nickel and 0.05 to 0.2 percent of high-temperature oxidation resistant metal.
2. A high temperature tin bar as set forth in claim 1 wherein said high temperature oxidation resistant metal is an alloy of tin and phosphorus.
3. The preparation method of the high-temperature tin bar is characterized by comprising the following steps:
s1, preparing a nickel alloy: adding tin and nickel into a frequency conversion furnace, heating to 800-1100 ℃, stirring the tin-nickel alloy molten liquid after the tin and nickel are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-nickel alloy containing 10-20% of nickel;
s2, preparing a copper alloy: adding tin and copper into a frequency conversion furnace, heating to 600-900 ℃, stirring the molten tin-copper alloy liquid after the tin and copper are completely melted, continuously stirring for 15min, standing for 5min, and pouring to obtain the tin-copper alloy containing 10-20% of copper;
s3, molten alloy: weighing tin-nickel alloy, tin-copper alloy and antimony according to the weight percentage, adding the tin-nickel alloy, the tin-copper alloy and the antimony into a smelting furnace, heating to 450-500 ℃, stirring the alloy molten liquid to form vortex after the alloy molten liquid is completely dissolved, and continuously stirring for 15 min;
s4, adding high-temperature antioxidant metal: cooling the smelting furnace to 300-350 ℃, adding high-temperature antioxidant metal, completely melting, and keeping the temperature to fully stir for 10-20 min;
s5, preparing a high-temperature lead-free tin bar: and reducing the temperature of the smelting furnace to 280 ℃, and casting the molten liquid into a mould to obtain the high-temperature tin bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303521.XA CN111468860A (en) | 2020-04-16 | 2020-04-16 | High-temperature tin bar and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303521.XA CN111468860A (en) | 2020-04-16 | 2020-04-16 | High-temperature tin bar and preparation method thereof |
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| CN111468860A true CN111468860A (en) | 2020-07-31 |
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| CN202010303521.XA Pending CN111468860A (en) | 2020-04-16 | 2020-04-16 | High-temperature tin bar and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227056A (en) * | 2021-12-28 | 2022-03-25 | 昆山市天和焊锡制造有限公司 | High-temperature-resistant antioxidant soldering tin material |
| CN117733402A (en) * | 2024-01-30 | 2024-03-22 | 深圳市永佳润金属有限公司 | High-heat-resistance lead-free tin bar and preparation method thereof |
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2020
- 2020-04-16 CN CN202010303521.XA patent/CN111468860A/en active Pending
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| EP2942410A1 (en) * | 2001-03-01 | 2015-11-11 | Senju Metal Industry Co., Ltd. | Lead-free solder paste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227056A (en) * | 2021-12-28 | 2022-03-25 | 昆山市天和焊锡制造有限公司 | High-temperature-resistant antioxidant soldering tin material |
| CN117733402A (en) * | 2024-01-30 | 2024-03-22 | 深圳市永佳润金属有限公司 | High-heat-resistance lead-free tin bar and preparation method thereof |
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Application publication date: 20200731 |