CN110977242A - Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof - Google Patents
Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof Download PDFInfo
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- CN110977242A CN110977242A CN201911210716.3A CN201911210716A CN110977242A CN 110977242 A CN110977242 A CN 110977242A CN 201911210716 A CN201911210716 A CN 201911210716A CN 110977242 A CN110977242 A CN 110977242A
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- air conditioner
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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
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu 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
Abstract
The invention provides an environment-friendly low-silver brazing filler metal special for a machine room air conditioner, which comprises the following raw materials in percentage: 4.50 to 5.50 percent of silver, 6.00 to 8.00 percent of phosphorus, 0.10 to 0.20 percent of indium, 0.01 to 0.06 percent of gallium, 0.50 to 0.90 percent of tin, 0.02 to 0.06 percent of nickel, 0.02 to 0.04 percent of bismuth and the balance of copper. The invention also provides a manufacturing method of the special environment-friendly low-silver solder for the machine room air conditioner, which comprises the following steps: preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use; processing: and (3) putting the raw materials in the step (1) into smelting equipment. The environment-friendly low-silver brazing filler metal special for the machine room air conditioner and the manufacturing method thereof can refine crystal grains, are high-temperature resistant, can prevent oxidation in the brazing process, reduce brazing temperature, increase wettability and fluidity of the brazing filler metal, and can purify brazing seam crystal boundaries, so that the fatigue resistance of brazing seams is improved, the utilization rate of resources can be improved, the production energy consumption is reduced, the cost is saved, and the resource waste is reduced.
Description
Technical Field
The invention relates to the technical field of brazing filler metal, in particular to an environment-friendly low-silver brazing filler metal special for a machine room air conditioner and a manufacturing method thereof.
Background
The machine room air conditioner is a high-precision air conditioner specially used for a machine room, and the brazing filler metal used in the machine room air conditioner industry at present has the silver content of 15% or more in order to obtain welding seams with high precision, high strength, impact resistance and good spreadability, so that the use requirements of equipment such as common machine room air conditioner accessories are met, but the brazing temperature of the existing brazing filler metal is high, the cost is high, the environment is not protected, and resources are wasted.
Disclosure of Invention
The invention aims to overcome the existing defects, provides the special environment-friendly low-silver brazing filler metal for the machine room air conditioner and the manufacturing method thereof, can refine grains, resist high temperature, prevent oxidation in the brazing process, reduce brazing temperature, increase the wettability and the fluidity of the brazing filler metal, and purify the grain boundary of a brazing seam, thereby improving the fatigue resistance of the brazing seam, improving the utilization rate of resources and reducing the production energy consumption, saving the cost, reducing the resource waste, and effectively solving the problems in the background technology.
In order to achieve the above object, the present invention proposes: the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 4.50 to 5.50 percent of silver, 6.00 to 8.00 percent of phosphorus, 0.10 to 0.20 percent of indium, 0.01 to 0.06 percent of gallium, 0.50 to 0.90 percent of tin, 0.02 to 0.06 percent of nickel, 0.02 to 0.04 percent of bismuth and the balance of copper.
As a preferred technical scheme of the invention: the raw materials comprise the following components in percentage by weight: 4.80 to 5.30 percent of silver, 6.50 to 7.50 percent of phosphorus, 0.12 to 0.18 percent of indium, 0.02 to 0.05 percent of gallium, 0.60 to 0.80 percent of tin, 0.03 to 0.05 percent of nickel, 0.02 to 0.03 percent of bismuth and the balance of copper.
As a preferred technical scheme of the invention: the raw materials comprise the following components in percentage by weight: 5.00% of silver, 7.00% of phosphorus, 0.15% of indium, 0.04% of gallium, 0.70% of tin, 0.04% of nickel, 0.03% of bismuth and the balance of copper.
The invention also provides a manufacturing method of the special environment-friendly low-silver solder for the machine room air conditioner, which comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into the brazing filler metal with the required shape in a mode of extrusion and wire drawing in sequence.
As a preferred technical scheme of the invention: the brazing filler metal welding material in the step 4 is at least one of a welding lug, a welding wire, a welding rod or a welding ring.
Compared with the prior art, the invention has the beneficial effects that: the environment-friendly low-silver brazing filler metal special for the machine room air conditioner and the manufacturing method thereof can refine crystal grains, are high-temperature resistant, can prevent oxidation in the brazing process, reduce brazing temperature, increase wettability and fluidity of the brazing filler metal, and can purify brazing seam crystal boundaries, so that the fatigue resistance of brazing seams is improved, the utilization rate of resources can be improved, the production energy consumption is reduced, the cost is saved, and the resource waste is reduced.
Drawings
FIG. 1 is a flow chart of the preparation method of the environment-friendly low-silver solder special for the air conditioner of the machine room.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1, the present invention provides the following technical solutions:
the first embodiment is as follows:
the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 4.50% of silver, 6.00% of phosphorus, 0.10% of indium, 0.01% of gallium, 0.50% of tin, 0.02% of nickel, 0.02% of bismuth and the balance of copper.
A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into brazing filler metal with a required shape in a manner of extrusion and wire drawing in sequence, wherein the brazing filler metal welding material is a soldering lug.
Example two:
the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 5.50% of silver, 8.00% of phosphorus, 0.20% of indium, 0.06% of gallium, 0.90% of tin, 0.06% of nickel, 0.04% of bismuth and the balance of copper.
A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into brazing filler metal with a required shape in a mode of extrusion and wire drawing in sequence, wherein the brazing filler metal welding material is a welding wire.
Example three:
the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 4.80% of silver, 6.50% of phosphorus, 0.12% of indium, 0.02% of gallium, 0.60% of tin, 0.03% of nickel, 0.02% of bismuth and the balance of copper.
A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into brazing filler metal with a required shape in a manner of extrusion and wire drawing in sequence, wherein the brazing filler metal welding material is a welding rod.
Example four:
the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 5.30% of silver, 7.50% of phosphorus, 0.18% of indium, 0.05% of gallium, 0.80% of tin, 0.05% of nickel, 0.03% of bismuth and the balance of copper.
A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into brazing filler metal with a required shape in a manner of extrusion and wire drawing in sequence, wherein the brazing filler metal welding material is a welding ring.
Example five:
the environment-friendly low-silver brazing filler metal special for the machine room air conditioner comprises the following raw materials in percentage: 4.50% of silver, 7.00% of phosphorus, 0.15% of indium, 0.03% of gallium, 0.70% of tin, 0.04% of nickel, 0.03% of bismuth and the balance of copper.
A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into brazing filler metal with a required shape in a manner of extrusion and wire drawing in sequence, wherein the brazing filler metal welding material is a welding rod.
The invention has the advantages that: the brazing flux has the advantages of refining grains, resisting high temperature, preventing oxidation in the brazing process, reducing brazing temperature, increasing wettability and fluidity of the solder, purifying the grain boundary of a brazing seam, improving fatigue resistance of the brazing seam, improving the utilization rate of resources and reducing production energy consumption, saving cost and reducing resource waste.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a special low silver brazing filler metal of environmental protection of computer lab air conditioner which characterized in that: the raw materials comprise the following components in percentage by weight: 4.50 to 5.50 percent of silver, 6.00 to 8.00 percent of phosphorus, 0.10 to 0.20 percent of indium, 0.01 to 0.06 percent of gallium, 0.50 to 0.90 percent of tin, 0.02 to 0.06 percent of nickel, 0.02 to 0.04 percent of bismuth and the balance of copper.
2. The special environment-friendly low-silver solder for the machine room air conditioner as claimed in claim 1, wherein the solder comprises: the raw materials comprise the following components in percentage by weight: 4.80 to 5.30 percent of silver, 6.50 to 7.50 percent of phosphorus, 0.12 to 0.18 percent of indium, 0.02 to 0.05 percent of gallium, 0.60 to 0.80 percent of tin, 0.03 to 0.05 percent of nickel, 0.02 to 0.03 percent of bismuth and the balance of copper.
3. The special environment-friendly low-silver solder for the machine room air conditioner as claimed in claim 1, wherein the solder comprises: the raw materials comprise the following components in percentage by weight: 5.00% of silver, 7.00% of phosphorus, 0.15% of indium, 0.04% of gallium, 0.70% of tin, 0.04% of nickel, 0.03% of bismuth and the balance of copper.
4. A manufacturing method of special environment-friendly low-silver solder for a machine room air conditioner is characterized by comprising the following steps: the method comprises the following steps:
1) preparing materials: weighing a certain amount of silver, phosphorus, indium, gallium, tin, nickel, bismuth and copper according to the percentage of the raw materials, and placing for later use;
2) processing: putting the raw materials in the step 1 into smelting equipment, adding a covering agent, and then mixing and melting the raw materials to complete smelting of the raw materials;
3) casting: and (3) casting the molten metal smelted in the step (2) by adopting continuous casting or die casting:
4) extrusion molding: and processing the cast metal into the brazing filler metal with the required shape in a mode of extrusion and wire drawing in sequence.
5. The manufacturing method of the special environment-friendly low-silver solder for the machine room air conditioner according to claim 4, characterized by comprising the following steps: the brazing filler metal welding material in the step 4 is at least one of a welding lug, a welding wire, a welding rod or a welding ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911210716.3A CN110977242A (en) | 2019-12-02 | 2019-12-02 | Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911210716.3A CN110977242A (en) | 2019-12-02 | 2019-12-02 | Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof |
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| CN110977242A true CN110977242A (en) | 2020-04-10 |
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| CN201911210716.3A Pending CN110977242A (en) | 2019-12-02 | 2019-12-02 | Special environment-friendly low-silver brazing filler metal for machine room air conditioner and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111644777A (en) * | 2020-05-12 | 2020-09-11 | 江苏集萃先进金属材料研究所有限公司 | Low-temperature packaging material for ultrathin uniform-temperature plate and preparation method thereof |
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| CN101524798A (en) * | 2009-04-02 | 2009-09-09 | 杭州华光焊料有限公司 | Low silver copper base medium temperature brazing filler metal |
| CN101791749A (en) * | 2009-11-12 | 2010-08-04 | 金华市双环钎焊材料有限公司 | Low-sliver brazing filler metal and production method and equipment thereof |
| CN103567659A (en) * | 2013-10-12 | 2014-02-12 | 西安理工大学 | Cadmium-free low-silver medium-temperature solder for welding hard alloy and steel and preparation method |
| US20170304959A1 (en) * | 2014-11-18 | 2017-10-26 | Baker Hughes Incorporated | Braze materials and earth-boring tools comprising braze materials |
| CN108381060A (en) * | 2018-05-16 | 2018-08-10 | 中原工学院 | Copper phosphorus base solder and its application |
| CN108465974A (en) * | 2018-02-27 | 2018-08-31 | 江苏远方动力科技有限公司 | A kind of low-silver copper-base high-performance solder and preparation method thereof |
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2019
- 2019-12-02 CN CN201911210716.3A patent/CN110977242A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524798A (en) * | 2009-04-02 | 2009-09-09 | 杭州华光焊料有限公司 | Low silver copper base medium temperature brazing filler metal |
| CN101791749A (en) * | 2009-11-12 | 2010-08-04 | 金华市双环钎焊材料有限公司 | Low-sliver brazing filler metal and production method and equipment thereof |
| CN103567659A (en) * | 2013-10-12 | 2014-02-12 | 西安理工大学 | Cadmium-free low-silver medium-temperature solder for welding hard alloy and steel and preparation method |
| US20170304959A1 (en) * | 2014-11-18 | 2017-10-26 | Baker Hughes Incorporated | Braze materials and earth-boring tools comprising braze materials |
| CN108465974A (en) * | 2018-02-27 | 2018-08-31 | 江苏远方动力科技有限公司 | A kind of low-silver copper-base high-performance solder and preparation method thereof |
| CN108381060A (en) * | 2018-05-16 | 2018-08-10 | 中原工学院 | Copper phosphorus base solder and its application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111644777A (en) * | 2020-05-12 | 2020-09-11 | 江苏集萃先进金属材料研究所有限公司 | Low-temperature packaging material for ultrathin uniform-temperature plate and preparation method thereof |
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Application publication date: 20200410 |