CN111545950A - Solder and heat-insulating container welded by same - Google Patents
Solder and heat-insulating container welded by same Download PDFInfo
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- CN111545950A CN111545950A CN202010439608.XA CN202010439608A CN111545950A CN 111545950 A CN111545950 A CN 111545950A CN 202010439608 A CN202010439608 A CN 202010439608A CN 111545950 A CN111545950 A CN 111545950A
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- welding
- titanium
- solder
- container
- stainless steel
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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
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/325—Ti as the principal constituent
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
-
- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Packages (AREA)
Abstract
The invention relates to a solder and a heat-insulating container welded by the solder. The solder comprises, by weight, 5% of zirconium, 9% of nickel, 78% of titanium and 8% of copper. The heat preservation container comprises a titanium material inner container and a stainless steel shell of SUS304 stainless steel; a welding cavity is reserved between the inner container and the shell after assembly, the welding flux is used for vacuum brazing welding, and the inner container and the shell are connected after welding. The titanium inner container and the stainless steel shell of the heat-insulating container can be welded and connected, the welding part has high tensile strength and good compactness, the quality of the heat-insulating container is ensured, and the service life of the heat-insulating container is prolonged.
Description
Technical Field
The invention relates to a heat-insulating container and a processing technology thereof, in particular to a solder and a heat-insulating container welded by the solder.
Background
At present, many people can fill water in a thermos cup and also can fill acidic drinks such as fruit juice, fruit tea, fruit powder granules, carbonated beverages and the like. The main material of the existing heat preservation container (especially the vacuum cup) is stainless steel, namely, the inner container and the outer shell of the vacuum cup are both made of stainless steel. The stainless steel has a high melting point and does not release undesirable substances due to high-temperature melting. However, stainless steel is most afraid of strong acid, and if drinks with strong acid are loaded for a long time, the inner container of the stainless steel is likely to be damaged. The damaged inner container of the stainless steel vacuum cup can cause the chromium, nickel and manganese elements contained in the stainless steel to migrate rapidly, and more heavy metals are likely to migrate in a short time. Moreover, the migration is often unrecognizable to the naked eye, which brings hidden dangers to the health of the user. Some people also like to soak the traditional Chinese medicine in a vacuum cup, so that the traditional Chinese medicine is convenient to carry and drink. However, a large amount of acidic substances are dissolved in the decocted traditional Chinese medicine, and the acidic substances are easy to react with chemical substances contained in the inner wall of the vacuum cup and are dissolved in the decoction, so that adverse effects are generated on the human body. The titanium vacuum cup has the advantages that strong acid and strong alkali resistance is not needed, the titanium vacuum cup is in contact with the traditional Chinese medicine, any chemical reaction is not generated, and the safety and the convenient carrying of the traditional Chinese medicine can be realized. No matter what the cup is, the cup can be filled with coffee, fruit juice, fruit tea, fruit powder granules, carbonated beverage and milk, no heavy metal is separated out, and the cup is not limited to what the cup wants to drink, and even people with metal allergy can use the cup without worry. Secondly, the method comprises the following steps: titanium is beneficial to the human body, and this light metal has the ability to regulate the body's natural electrical current through cell ionization. Titanium has special current characteristics, has beneficial physiological effect on human body, is chemically stable, cannot change or deteriorate with time, and is beneficial to physical and psychological health of human body. Therefore, the titanium product can achieve the effects of relaxing spirit, relaxing muscles and improving motor function. Thirdly, the method comprises the following steps: titanium oxide is an inorganic compound of titanium and oxygen and is generally used as food additives, paint, cosmetic additives and the like. Titanium oxide is classified into rutile type and anatase type according to its crystal structure. Among them, anatase type has a bactericidal effect. The titanium oxide thin film oxidized at the positive electrode has a temperature characteristic in the chemical synthesis treatment, and this characteristic causes the titanium oxide thin film to be anatase crystals and formed on the surface of titanium. The titanium surface is an oxide film, so that the iron rust taste of metal products is not felt, the peculiar smell of the beverage is not generated, and the taste can be fresh and cool. The mechanism of the photo-antibacterial action is that after the titanium oxide receives light, positive holes and negative electrons on the surface of the titanium oxide are released. This energy dissolves with oxygen contained in water to form active oxygen, and hydrogen and oxygen are produced by decomposing water. In this process, the beverage is further mellow in taste because the organic substances are sterilized and decomposed by the action of hydrogen and active oxygen, and also the foreign germs, sour taste, and the like are decomposed. Fourthly: titanium is known as biological metal, widely used for medical appliances and human body implantation, is a universally recognized healthy and nontoxic element in the world, has no influence on the vegetative nerve and gustatory nerve of people, and is resistant to strong acid and strong alkali. Therefore, the titanium vacuum cup is slightly expensive, but has obvious benefits for human bodies.
In order to solve the problems, the Chinese patent application publication (publication number: CN 110432727A) discloses a vacuum cup with outer steel and inner titanium and a vacuumizing process. It comprises the following steps: manufacturing a double-layer inner container, a titanium alloy inner container layer and a stainless steel inner container layer. Manufacturing a shell, comprising the following steps: a stainless steel layer: stainless steel pipe material, cutting pipe, water expanding, forming, rolling thread after products are complete, and forming the outer shell; and (5) stamping the outsole to form and vacuumizing holes. Manufacturing a finished cup body, comprising the following steps: the inner container shell is matched with a buckle for welding, and the outer bottom is welded (the upper air suction sheet is welded); placing glass cement after welding; the glass cement is heated and melted by vacuum equipment to reach a high vacuum state after being cooled. The vacuum interlayer sealing performance of the vacuum cup is greatly improved and the service life of the vacuum cup is prolonged by adopting the double-layer inner titanium alloy as the inner container, the stainless steel of the outermost shell, the 3-layer process and the hollow position vacuum layer in the inner container and the shell.
However, at present, the titanium material and the stainless steel have poor welding fastness, even the titanium material and the stainless steel cannot be welded together by adopting a common welding mode, and the quality of the heat preservation container of the titanium inner container and the stainless steel shell is poor.
Disclosure of Invention
The invention aims to provide a solder and a heat preservation container welded by the solder, which mainly solve the problems in the prior art, can realize the welding connection between a titanium inner container and a stainless steel shell of the heat preservation container, has high tensile strength and good compactness of the welding part, ensures the quality of the heat preservation container and prolongs the service life of the heat preservation container.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a solder for effecting a vacuum brazing weld between titanium and stainless steel, characterized by: the solder comprises, by weight, 5% of zirconium, 9% of nickel, 78% of titanium and 8% of copper.
The solder is characterized in that: the zirconium, the nickel, the titanium and the copper are ground into powder according to the proportion, and the fineness of the powder is 300-800 meshes.
A heat-insulating container comprises a titanium material inner container and a stainless steel shell; the method is characterized in that: a welding cavity is reserved between the inner container and the shell after assembly, the welding flux is used for vacuum brazing welding, and the inner container and the shell are connected after welding.
The heat preservation container is characterized in that: the temperature of the vacuum brazing is 905-930 ℃.
The heat preservation container is characterized in that: the width of the welding cavity is 0.1-0.5 mm.
The heat preservation container is characterized in that: the vacuum brazing part adopts overlap welding or edge rolling welding.
The heat preservation container is characterized in that: the heat preservation time of the vacuum brazing is 50-70 min.
By the technical scheme, the invention has the advantages that:
the titanium inner container of the heat-insulating container and the stainless steel shell can be effectively connected through the solder, a CuNi alloy layer is formed on one surface of a welding line close to the stainless steel through the solder, and the tensile strength of the side reaches about 110 MPa. One side of the welding line close to the titanium liner is provided with a TiCukao alloy layer through welding materials, and the tensile strength of the side reaches about 110 MPa. The lowest mid-hardness of the weld is due to the strength of the solder not forming an alloy. The reason why the brazing temperature is not higher than 930 ℃ is that: when the temperature reaches 930 ℃, phase change reaction is generated on the titanium raw material, crystals become large, and the base material titanium becomes brittle.
Drawings
FIG. 1 is a schematic view of the structure of the insulated container of the present invention.
FIG. 2 is a schematic view of the structure of a vacuum brazing portion of the heat insulating container of the present invention 1.
FIG. 3 is a schematic view of the structure of the vacuum brazing portion of the heat insulating container of the present invention 2.
FIG. 4 is another schematic view of the vacuum brazing site of the thermal container of the present invention.
FIG. 5 is a schematic view showing still another structure of the vacuum brazing portion of the heat insulating container of the present invention.
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the drawings, which are provided for reference and illustration purposes only and are not intended to limit the present invention.
Referring to fig. 1-3, the present invention discloses a thermal container. As shown in the figure: the titanium-based stainless steel water heater comprises a titanium material inner container 1 and a stainless steel shell 2; a welding containing cavity 3 is reserved between the inner container and the shell after assembly, vacuum brazing welding is carried out between the welding containing cavities 3 through a welding flux 4, and the inner container and the shell are connected after welding.
The invention provides a solder 4 which is beneficial to vacuum fiber welding between a titanium inner container 1 and a stainless steel shell 2. The solder comprises, by weight, 5% of zirconium, 9% of nickel, 78% of titanium and 8% of copper. During preparation, zirconium, nickel, titanium and copper are ground into powder according to a proportion, the fineness of the powder is 300-800 meshes, and the powder is mixed to form the solder.
During welding, as shown in fig. 2 and 3, the width of a welding cavity reserved at the cup mouth is 0.1-0.5mm, and then the welding flux is adopted to carry out vacuum brazing by adopting the common vacuum brazing process steps. The temperature of the vacuum brazing is 905-930 ℃, the vacuum brazing part adopts lap welding or edge welding, and the heat preservation time of the vacuum brazing is 50-70 min.
Referring to fig. 3, 4 and 5, there are three structural schematic diagrams of the welding chambers that can be used in the present invention.
Example 1
A vacuum cup is provided with a titanium inner container and an SUS304 stainless steel shell, wherein a welding cavity is reserved between the inner container and the shell after assembly, the width of the welding cavity is 0.1mm, and vacuum brazing is carried out through welding flux. The solder is prepared by mixing 5 percent of zirconium powder of 300 meshes, 9 percent of nickel powder of 300 meshes, 78 percent of titanium powder of 300 meshes and 8 percent of copper powder of 300 meshes according to weight percentage.
The temperature of the vacuum brazing is 905 ℃, a lap welding structure (the inner container and the shell are jointed and welded together) is adopted, and the heat preservation time of the vacuum brazing is 50 min.
Example 2
A vacuum cup is provided with a titanium inner container and an SUS305 stainless steel shell, wherein a welding cavity is reserved between the inner container and the shell after assembly, the width of the welding cavity is 0.5mm, and vacuum brazing is carried out through welding flux. The solder is prepared by mixing 5 percent of 800-mesh zirconium powder, 9 percent of 800-mesh nickel powder, 78 percent of 800-mesh titanium powder and 8 percent of 800-mesh copper powder according to weight percentage.
The temperature of the vacuum brazing is 930 ℃, a hemming structure (one opening of the inner container or the shell is welded after hemming and then matched with the opening) is adopted, and the heat preservation time of the vacuum brazing is 70 min.
Example 3
The inner container of the heat-insulating container is formed by compounding and connecting a titanium material and a SUS309 stainless steel material in a vacuum brazing mode, wherein the titanium material is arranged close to the inside and the stainless steel material is arranged close to the outside, and an unmodified or plastic shell can be arranged outside the compound inner container. The welding cavity (welding line) of the welding part of the composite liner is 3.0 mm. The solder is prepared by mixing 5 percent of 500-mesh zirconium powder, 9 percent of 500-mesh nickel powder, 78 percent of 500-mesh titanium powder and 8 percent of 500-mesh copper powder according to weight percentage.
The temperature of the vacuum brazing is 920 ℃, and the heat preservation time of the vacuum brazing is 60 min.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and drawings are included in the scope of the present invention, and it is obvious that the present invention is also included in the claims.
Claims (7)
1. A solder for effecting a vacuum brazing weld between titanium and stainless steel, characterized by: the solder comprises, by weight, 5% of zirconium, 9% of nickel, 78% of titanium and 8% of copper.
2. The solder according to claim 1, wherein: the zirconium, the nickel, the titanium and the copper are ground into powder according to the proportion, and the fineness of the powder is 300-800 meshes.
3. A heat-insulating container comprises a titanium material inner container and a stainless steel shell; the method is characterized in that: a welding cavity is reserved between the inner container and the shell after assembly, the welding flux of claim 1 or 2 is used for vacuum brazing welding, and the inner container and the shell are connected after welding.
4. The thermal container according to claim 3, characterized in that: the temperature of the vacuum brazing is 905-930 ℃.
5. The thermal container according to claim 3, characterized in that: the width of the welding cavity is 0.1-3.0 mm.
6. The thermal container according to claim 3, characterized in that: the vacuum brazing part adopts overlap welding or edge rolling welding.
7. The thermal container according to claim 4, characterized in that: the heat preservation time of the vacuum brazing is 50-70 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010439608.XA CN111545950B (en) | 2020-05-22 | 2020-05-22 | Solder and heat-insulating container welded by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010439608.XA CN111545950B (en) | 2020-05-22 | 2020-05-22 | Solder and heat-insulating container welded by same |
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| Publication Number | Publication Date |
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| CN111545950A true CN111545950A (en) | 2020-08-18 |
| CN111545950B CN111545950B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010439608.XA Active CN111545950B (en) | 2020-05-22 | 2020-05-22 | Solder and heat-insulating container welded by same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001124A (en) * | 2021-03-18 | 2021-06-22 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum cup with composite inner container |
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| CN107344655A (en) * | 2017-07-31 | 2017-11-14 | 白明军 | A kind of vacuum utensil structure of the outer steel of interior titanium |
| CN108340093A (en) * | 2018-02-07 | 2018-07-31 | 郑州大学 | Titanium-based amorphous solder preparation method and application is in connection TC4 titanium alloys and 304 stainless steels |
| CN110355496A (en) * | 2019-05-14 | 2019-10-22 | 中国航发北京航空材料研究院 | A kind of high temperature resistant solder and soldering processes can be used for gamma-TiAl alloy |
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2020
- 2020-05-22 CN CN202010439608.XA patent/CN111545950B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695877A (en) * | 2005-06-27 | 2005-11-16 | 中国航空工业第一集团公司北京航空材料研究院 | Method for preparing powder of titanium based alloyl solder |
| CN1899747A (en) * | 2005-09-06 | 2007-01-24 | 中国航天科技集团公司第一研究院第七○三研究所 | Composite connecting method with transition liquid phase diffusion welding of intermetallic Ti-Al compound alloy |
| CN103567666A (en) * | 2013-11-15 | 2014-02-12 | 中国航空工业集团公司北京航空制造工程研究所 | Strip-shaped brazing filler metal for titanium alloy brazing and Ti2AlNb alloy brazing, preparation method thereof and brazing method |
| CN104772578A (en) * | 2015-04-10 | 2015-07-15 | 北京航空航天大学 | Brazing filler metal comprising titanium-zirconium-copper-nickel |
| CN105033504A (en) * | 2015-08-28 | 2015-11-11 | 河南科技大学 | Brazing filler metal containing lanthanum and neodymium elements for titanium alloy brazing and preparation method thereof |
| CN107344655A (en) * | 2017-07-31 | 2017-11-14 | 白明军 | A kind of vacuum utensil structure of the outer steel of interior titanium |
| CN108340093A (en) * | 2018-02-07 | 2018-07-31 | 郑州大学 | Titanium-based amorphous solder preparation method and application is in connection TC4 titanium alloys and 304 stainless steels |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001124A (en) * | 2021-03-18 | 2021-06-22 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum cup with composite inner container |
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| CN111545950B (en) | 2022-06-17 |
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Effective date of registration: 20220516 Address after: 321201 jinyanshan Industrial Zone, Quanxi Town, Wuyi County, Jinhua City, Zhejiang Province Applicant after: Zhejiang kurshi Technology Co.,Ltd. Address before: Zongyi Road, jinyanshan Industrial Zone, Quanxi Town, Wuyi County, Jinhua City, Zhejiang Province Applicant before: ZHEJIANG NOVIA INDUSTRY & TRADE Co.,Ltd. |
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