WO2024026971A1 - 一种保温容器及其制造方法 - Google Patents

一种保温容器及其制造方法 Download PDF

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Publication number
WO2024026971A1
WO2024026971A1 PCT/CN2022/117409 CN2022117409W WO2024026971A1 WO 2024026971 A1 WO2024026971 A1 WO 2024026971A1 CN 2022117409 W CN2022117409 W CN 2022117409W WO 2024026971 A1 WO2024026971 A1 WO 2024026971A1
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WO
WIPO (PCT)
Prior art keywords
cup
mouth
adapter
adapter part
titanium
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Application number
PCT/CN2022/117409
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English (en)
French (fr)
Inventor
胡华成
Original Assignee
胡华成
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Publication date
Priority claimed from CN202210925176.2A external-priority patent/CN115352738B/zh
Priority claimed from CN202222027041.2U external-priority patent/CN217893524U/zh
Application filed by 胡华成 filed Critical 胡华成
Publication of WO2024026971A1 publication Critical patent/WO2024026971A1/zh

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Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00—Other table equipment
    • A47G23/04—Containers with means for keeping food cool or hot
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
    • A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/22—Devices for holding in closed position, e.g. clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation

Definitions

  • the present invention relates to a container structure, in particular to an insulated container and a manufacturing method thereof.
  • thermos cups because stainless steel has a higher melting point and will not release harmful substances due to high temperature melting, the main material of existing thermal insulation containers (especially thermos cups) is stainless steel, that is, the inner tank and outer shell of the thermos cup are both made of stainless steel.
  • stainless steel is most afraid of strong acid. If it is loaded with highly acidic drinks for a long time, its inner tank is likely to be damaged. Damage to the liner of the stainless steel thermos cup will cause the chromium, nickel, and manganese elements contained in the stainless steel to accelerate migration, and it is very likely that more heavy metals will migrate out in a short period of time. Moreover, this migration is often invisible to the naked eye, causing hidden dangers to the health of users.
  • thermos cup Some people also like to soak Chinese medicine in a thermos cup for easy portability and drinking. However, a large amount of acidic substances are dissolved in the decoction of traditional Chinese medicine, which easily reacts with the chemicals contained in the inner wall of the thermos cup and dissolves into the decoction, causing adverse effects on the human body.
  • Cid utility model patent CN212221148U discloses a thermal insulation container, which includes a titanium liner and a stainless steel casing; a vacuum insulation cavity is formed between the liner and the casing, and a welding cavity is formed at the upper opening of the liner and the casing. Strong solder is used to vacuum-braze the inner tank and outer shell in the welding cavity.
  • This thermal insulation container replaces the traditional stainless steel liner with a titanium liner, which solves the problem of heavy metal migration in stainless steel due to acidic substances.
  • the utility model also discloses a strong solder, which includes 40-80% silver, 10-30% copper and 5-30% titanium according to weight percentage. During preparation, silver, copper and titanium are ground into powder in proportion with a fineness of 300-800 mesh and mixed to form the strong solder.
  • solder is not suitable for mass production, and the pass rate is low, about 70-75%.
  • powdery solder is difficult to handle during welding operations.
  • the solder is easily filled unevenly, and overflow occurs in many places. The few places are not filled enough, the solder joints are uneven, and the firmness after welding is poor.
  • the welding joint is easy to crack after being dropped from a height of 0.4 meters, resulting in the failure of the heat preservation function, and does not meet the relevant requirements of the vacuum insulated cup.
  • the solder is easily contaminated during operation, and climate change can easily cause performance changes, which are difficult to detect. This is also the reason for the low qualification rate, poor density, and poor firmness of welded products.
  • the purpose of the present invention is to provide a thermal insulation container and a manufacturing method thereof, which mainly solves the problems of heavy metals in the solder of existing titanium material thermal insulation containers migrating into the inner tank and weak welding.
  • the invention not only has the advantages of existing titanium material inner tank thermal insulation
  • the container has strong acid resistance, sterilization, freshness preservation and other effects, and no heavy metals in the solder will migrate into the inner tank.
  • the improvement of the solder makes the solder joints uniform and the welding firm.
  • An insulated container which includes a titanium liner and an outer shell; the casing sequentially includes a titanium cup mouth, a stainless steel adapter, and a cup-shaped stainless steel cup with a mouth whose diameter is greater than the diameter of the liner from the mouth to the bottom of the container. body; the mouth of the cup is welded to the mouth of the liner, and the lower half of the cup is fixedly connected to the adapter.
  • the top of the adapter is provided with an outwardly protruding outer edge.
  • the mouth of the cup body is connected to the adapter. Welding on outer edge.
  • the adapter part is sleeved on the outside of the lower half of the cup mouth part and interference-fits with the cup mouth part.
  • the adapter part is a cylinder with an outwardly protruding outer edge at the top; the height of the lower half of the cup mouth is greater than the height of the adapter part, and the cup mouth extends beyond the bottom part of the adapter part and bends outward and upward to form a bending part; The barrel of the adapter part is inserted between the outer wall of the cup opening and the bending part.
  • the manufacturing method of the thermal insulation container has the following manufacturing method steps:
  • the titanium material cup mouth is inserted into the stainless steel adapter part, and the two are interference-fitted.
  • the top of the adapter part is provided with an outer edge that protrudes outward;
  • the third step is to insert the titanium material liner into the assembly, and weld the mouth of the titanium material cup mouth and the mouth of the liner together in the assembly;
  • the cup body is sleeved on the outside of the inner pot, and its mouth is welded to the outer edge of the top of the adapter part in the assembly.
  • the lower part of the cup rim is provided with a step that is folded inward; the step plays a limiting role in the first step to limit the position of the adapter part on the lower half of the cup rim.
  • the adapter part is a cylinder with an outer edge protruding outwards at the top; the height of the lower half of the cup mouth is greater than the height of the adapter part, and the cup mouth is bent outward and upward beyond the bottom part of the adapter part.
  • the bending part is formed by folding, and an annular solder cavity is formed between the bending part and the outer wall of the barrel of the adapter part.
  • the manufacturing method of the thermal insulation container has the following manufacturing method steps:
  • the titanium material cup mouth is inserted into the stainless steel adapter part, and the two are interference-fitted.
  • the top of the adapter part is provided with an outer edge that protrudes outward;
  • the third step is to insert the titanium material liner into the assembly, and weld the mouth of the titanium material cup mouth and the mouth of the liner together in the assembly;
  • the cup body is sleeved on the outside of the inner pot, and its mouth is welded to the outer edge of the top of the adapter part in the assembly.
  • the lower part of the cup rim is provided with a step that is folded inward; the step plays a limiting role in the first step to limit the position of the adapter part on the lower half of the cup rim.
  • the solder includes, according to weight percentage, silver 45-75%, copper 10-30%, titanium 8-25%, indium 0.5-3%, and nickel 0.3-1%.
  • the solder is a wire with a diameter of 0.5-2.0mm.
  • the thermal insulation container of the present invention takes advantage of the fact that welding of the same materials does not require solder, and creatively sets the cup mouth of titanium material, the adapter part of stainless steel, and the cup body.
  • the cup mouth is connected to the titanium material liner.
  • the mouth is welded with the same material, which avoids the use of solder to connect the mouth and the shell, and eliminates the possible migration of heavy metals that may occur after the mouth is welded with solder.
  • the adapter part and the cup mouth part have an interference fit.
  • the lower part of the cup mouth part is designed to be lengthened, so that after the adapter part is inserted, a part of it exceeds the bottom of the adapter part, and the excess part is Bend it outward and upward, and clamp the barrel of the adapter part tightly.
  • This connection method can be used without solder. The two are firmly connected together, so that no solder is used in the manufacturing process of combining the container liner and the outer shell, eliminating the problem of heavy metal migration in the solder.
  • the design and connection method of the three parts of the shell of the thermal insulation container of the present invention not only prevent heavy metals from migrating to the inner tank, but also make the assembly of the thermal insulation container more reasonable and easy to operate.
  • the welding wire is made by strong extrusion of the solder. After the mixed solder is strongly extruded, the density is very good, and the size of the welding wire is uniform after being drawn. The welding wire is made The process is simple, the production efficiency is high and the performance is stable. The solder joints are uniform and dense, the welding pass rate is high and the firmness is good. There is no cracking in the welding joint after being dropped from a height of 0.8 meters, which meets the relevant requirements of the vacuum insulated cup.
  • Figure 1 is a schematic structural diagram of the thermal insulation container of the present invention.
  • Figure 2 is a schematic structural diagram of the cup opening of the thermal insulation container of the present invention.
  • Figure 3 is a schematic structural diagram of the adapter part of the thermal insulation container of the present invention.
  • Figure 4 is a schematic structural diagram 1 of the combination of the cup mouth part and the adapter part of the thermal insulation container of the present invention.
  • Figure 5 is a schematic structural diagram 2 of the combination of the cup mouth part and the adapter part of the thermal insulation container of the present invention.
  • Figure 6 is a schematic structural diagram of the cup opening of the thermal insulation container according to the present invention, which is combined with the adapter part and then combined with the inner container.
  • the present invention discloses a thermal insulation container. As shown in the figure: it includes a titanium inner tank 1 and an outer shell.
  • the outer shell consists of a titanium cup opening 2, a stainless steel adapter 3 and a cup-shaped mouth with a diameter larger than the diameter of the inner tank.
  • the top of the cup mouth 2 is welded to the mouth of the inner pot 1, and the lower half of the cup mouth 2 is fixedly connected to the adapter part 3.
  • the top of the adapter part 3 is provided with The outer edge 31 protruding outward, the mouth of the cup body 4 and the outer edge 31 of the adapter part 3 are welded.
  • the adapter part 3 is a cylinder with an outwardly protruding outer edge 31 at the top; the adapter part 3 is sleeved on the outside of the lower half of the cup mouth part 2 and passes through the cup mouth part 2. Cooperate with surplus.
  • the lower part of the cup mouth part 2 is provided with a step 22 that is folded inward.
  • the step 22 can play a limiting role.
  • the cup opening 2 may also be provided with an external thread 21 for mating with the container lid.
  • Embodiment 1 as shown in Figure 4, the height of the lower half of the cup rim 2 is greater than the height of the adapter 3.
  • the cup rim 2 is bent outward and upward beyond the bottom part of the adapter 3 to form a bending portion 23.
  • the cylinder of the part 3 is inserted between the outer wall of the cup mouth part 2 and the bending part 23, and the adapter part 2 is tightly die-cast between the bending part 23 and the outer wall of the cup mouth part 2 through high pressure.
  • the first step insert the titanium material cup mouth part 2 into the stainless steel adapter part 3, and the two are interference-fitted.
  • the top of the adapter part 3 is provided with an outwardly protruding outer edge 31;
  • the cup mouth part 2 In the second step, bend the cup mouth part 2 beyond the bottom part of the adapter part 3 outward and upward to form a bending part 23, clamp the barrel of the adapter part 3, and then connect the lower part of the cup mouth part 2 with the adapter part 3.
  • the cylinder body of the joint 3 is die-cast together to form a combination of titanium material and stainless steel material;
  • the third step is to insert the titanium material liner 1 into the assembly, and weld the mouth of the titanium material cup mouth 2 and the mouth of the liner 1 in the assembly together; because the cup mouth 2 and the liner 1 are both made of titanium material , the welding of the two does not require the use of solder.
  • the fourth step is to connect the cup body part 4 to the outside of the inner pot 1, and its mouth is welded to the top outer edge 31 of the adapter part 3 in the assembly; because the cup body part 4 and the adapter part 3 are both made of stainless steel materials, the welding of the two does not require the use of solder.
  • thermal insulation containers manufactured by this method does not involve the use of solder, and naturally there is no problem of heavy metal migration.
  • Embodiment 2 as shown in Figure 5, the height of the lower half of the cup mouth 2 is greater than the height of the adapter portion 3, and the cup mouth 2 is bent outward and upward beyond the bottom portion of the adapter portion 3 to form a bent portion 23.
  • An annular solder cavity 6 is formed between the outer wall of the cylinder portion 23 and the adapter portion 3. The solder 5 is placed in the solder chamber 6 to weld the cup mouth portion 2 and the adapter portion 3 together.
  • the manufacturing method of the thermal insulation container of Embodiment 2 the steps of the manufacturing method are as follows:
  • the first step insert the titanium material cup mouth part 2 into the stainless steel adapter part 3, and the two are interference-fitted.
  • the top of the adapter part 3 is provided with an outwardly protruding outer edge 31;
  • the third step is as shown in Figure 6. Insert the titanium material liner 1 into the assembly, and weld the mouth of the titanium material cup mouth 2 and the mouth of the liner 1 in the assembly together; because the solder 5 only exists in the adapter part 3, and is far enough away from the mouth of the inner pot 1 that heavy metals in the solder 5 cannot migrate into the inner pot 1. Moreover, the cup mouth part 2 and the adapter part 3 are separately welded into an assembly and then welded to the inner pot 1. The inner pot 1 cannot contact the solder 5 at all, and naturally there is no migration of heavy metals in the solder 5 to the inner pot 1. Condition.
  • the cup body 4 is sleeved on the outside of the inner pot 1, and its mouth is welded to the top outer edge 31 of the adapter 3 in the assembly.
  • the solder 5 includes, according to weight percentage, silver 45-75%, copper 10-30%, titanium 8-25%, indium 0.5-3%, and nickel 0.3-1%.
  • powdered silver, copper, titanium, indium or nickel are mixed evenly in proportion, then die-cast into a solid through a mold, and then drawn into a welding wire with a diameter of 0.5-2.0mm through a wire drawing machine.
  • the welding wire is placed in the solder cavity 6, and ordinary vacuum brazing process steps are used to perform vacuum brazing.
  • the vacuum brazing temperature is 750-850°C, and the vacuum brazing heat preservation time is 50-70 minutes.
  • the welding wire is made of solder 5 after strong extrusion, it has very good density and is uniform in size after being drawn into the welding wire.
  • the welding wire is placed in the solder cavity 6 for welding, the solder joints are evenly distributed, dense and firm.
  • the welded product has good durability and the welded joint will not crack even if it is dropped from a height of 0.8 meters. It overcomes the shortcomings of uneven distribution, poor density, and poor firmness of solder joints caused by uneven filling of powdered solder, and the shortcomings of easy cracking of the welding joint after being dropped from a height of 0.4 meters.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Thermal Sciences (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

一种保温容器及其制造方法，保温容器包括钛材料内胆（1）和外壳；外壳包括钛材料杯口部（2）、不锈钢转接部（3）和不锈钢杯身部（4）；杯口部（2）与内胆（1）口部焊接，杯口部（2）下半部分与转接部（3）固定连接，转接部（3）顶端设置有向外凸出的外沿（31），杯身部（4）的口部与转接部（3）的外沿（31）焊接。其制造方法是将杯口部（2）固接转接部（3）中，杯口部（2）超出转接部（3）底部部分向外、向上弯折形成弯折部（23），并夹紧转接部（3），形成组合体；将内胆（1）插入组合体，杯口部（2）的口部与内胆（1）口部焊接在一起；再将杯身部（4）套接在内胆（1）外部，其口部与组合体中转接部（3）外沿（31）焊接在一起。本保温容器和制造方法，具有钛材料内胆（1）保温容器的耐强酸、杀菌、保鲜等效果，而且不会有焊料（5）中重金属迁移到内胆（1）内。

Description

一种保温容器及其制造方法 技术领域
本发明涉及容器结构，特别是一种保温容器及其制造方法。
背景技术
因不锈钢熔点较高，不会因高温溶化释出不良物质，所以现有的保温容器(特别是保温杯)的主要材质是不锈钢，即保温杯的内胆和外壳都是不锈钢材质。但不锈钢最怕强酸，如果长时间装载酸性较强的饮品，很可能会对其内胆产生损伤。不锈钢保温杯内胆受损，会引起不锈钢所含的铬、镍、锰元素加速迁移，并且极有可能在短时间内迁移出较多的重金属。而且这种迁移往往肉眼无法识别，给使用者的健康带来隐患。有些人也喜欢把中药泡在保温杯内，方便携带饮用。但煎好的中药中溶解了大量酸性物质，容易和保温杯内壁所含的化学物质发生反应，并溶解到汤药里，对人体产生不良影响。
中国实用新型专利CN212221148U公开了一种保温容器，它包括钛材料内胆和不锈钢外壳；该内胆和外壳之间形成真空保温腔体，该内胆和外壳的上端开口处形成有焊接容腔，强力焊料在焊接容腔处使内胆和外壳进行真空钎焊连接。该保温容器用钛材料的内胆替代了传统的不锈钢内胆，解决了酸性物质使不锈钢内重金属迁移问题。
但由于钛与不锈钢的熔点不一样，钛与不锈钢焊接需要特别的焊料，而该些焊料中亦含有银、铜等重金属，该实用新型中的保温容器钛材料与不锈钢外壳焊接的部位在容器口部，检测中发现，焊料中的重金属有向内胆中迁移的现象，亦不利于长期使用。
该实用新型同时公开了一种强力焊料，该强力焊料按照重量百分比包括，银40-80％、铜10-30％、钛5-30％。制备时，将银、铜、钛按比例磨成粉状，其细度为300-800目并混合形成所述的强力焊料。
但该种焊料不适合大批量生产，且合格率较低，约70—75％，并且，粉状 焊料，在焊接作业时不好操作，焊料极易填充不均匀，多的地方会溢料，少的地方填不满，焊点不均匀，焊接后牢固度较差，0.4米高度跌落后焊接处容易开裂，导致保温功能失效，不符合真空保温杯的相关要求。而且，作业时焊料极易被污染，因气候变化容易造成性能的变化，且不容易被发现，也是导致焊接产品合格率低、致密性差、牢固度差的原因。
发明内容
本发明的目的在于提供一种保温容器及其制造方法，主要解决现有钛材料保温容器焊料中的重金属向内胆内迁移、焊接不牢固的问题，本发明不但具有现有钛材料内胆保温容器的耐强酸、杀菌、保鲜等效果，而且不会有焊料中重金属迁移到内胆内，焊料的改进使焊点均匀，焊接牢固。
为实现上述目的,本发明的技术方案是:
一种保温容器，它包括钛材料内胆和外壳；外壳从容器口部至底部依次包括钛材料杯口部、不锈钢转接部和呈杯状的直径大于内胆直径的具有口部的不锈钢杯身部；杯口部与内胆口部焊接，杯口部下半部分与转接部固定连接，转接部顶端设置有向外凸出的外沿，杯身部的口部与转接部的外沿焊接。
转接部套接在杯口部下半部分外侧，与杯口部过盈配合。
该转接部为顶端设置向外凸出的外沿的筒体；杯口部下半部分高度大于转接部高度，杯口部超出转接部底部部分向外、向上弯折形成弯折部；该转接部的筒体插接于杯口部外壁与弯折部之间。
所述的保温容器的制造方法，制造方法步骤如下：
第一步，将钛材料杯口部插入不锈钢转接部中，二者过盈配合，转接部顶端设置有向外凸出的外沿；
第二步，将杯口部超出转接部底部部分向外、向上弯折形成弯折部，并夹紧转接部的筒体，然后将杯口部下半部分与转接部的筒体压铸在一起形成钛材料与不锈钢材料的组合体；
第三步，将钛材料内胆插入组合体，将组合体中钛材料杯口部的口部与内胆口部焊接在一起；
第四步，再将杯身部套接在内胆外部，其口部与组合体中转接部顶端外沿焊接在一起。
杯口部下部设置折向内侧的台阶；台阶在所述第一步中对转接部套于杯口部的下半部分的位置起到限位作用。
所述的保温容器，该转接部为顶端设置向外凸出的外沿的筒体；杯口部下半部分高度大于转接部高度，杯口部超出转接部底部部分向外、向上弯折形成弯折部，弯折部与转接部的筒体外壁之间构成环形的焊料容腔。
所述的保温容器的制造方法，制造方法步骤如下：
第一步，将钛材料杯口部插入不锈钢转接部中，二者过盈配合，转接部顶端设置有向外凸出的外沿；
第二步，将杯口部超出转接部底部部分向外、向上弯折形成弯折部，并夹紧转接部的筒体，弯折部与转接部的筒体外壁之间构成环形的焊料容腔，焊料置于其中，将杯口部与转接部焊接在一起形成钛材料与不锈钢材料的组合体；
第三步，将钛材料内胆插入组合体，将组合体中钛材料杯口部的口部与内胆口部焊接在一起；
第四步，再将杯身部套接在内胆外部，其口部与组合体中转接部顶端外沿焊接在一起。
杯口部下部设置折向内侧的台阶；台阶在所述第一步中对转接部套于杯口部的下半部分的位置起到限位作用。
焊料按照重量百分比包括，银45-75％、铜10-30％、钛8-25％、铟0.5-3％、镍0.3-1％。
焊料是直径为0.5-2.0mm的焊丝。
藉由上述技术方案，本发明的优点是：
1、本发明的保温容器，利用相同材料间的焊接不需要焊料的特性，创造性的设置钛材料的杯口部、不锈钢的转接部、杯身部，通过杯口部与钛材料内胆在口部同材料焊接，避免了口部与外壳的连接使用焊料，杜绝了口部使用焊料焊接后可能出现的重金属迁移。
2、本发明的保温容器，转接部与杯口部的过盈配合，同时，通过杯口部下部加长设计，使之在插入转接部之后有一部分超出转接部底部，并使超出部分向外、向上弯折，将转接部的筒体紧紧夹紧，此时可以用高压将转接部的筒体与杯口部下半部压铸在一起，这种连接方式可以不用焊料而使二者牢牢固接在一起，使容器内胆与外壳结合的制造过程中不使用焊料，杜绝焊料中重金属迁移的问题。
也可以在杯口部弯折部分与转接部外壁之间设置焊料容腔，将焊料置于该焊料容腔中，将二者通过焊料焊接在一起，因为焊料处于杯口部、转接部的外侧，且距离内胆口部距离足够长，不会发生重金属向内胆迁移的现象。
3、本发明的保温容器的外壳三部分的设计及连接方式，在避免重金属向内胆迁移的同时，也使得保温容器的装配更加合理，易于操作。
4、本发明的保温容器杯口部与转接部焊接时使用的是焊料强力挤压后制作的焊丝，混合焊料经强力挤压后，致密性非常好，抽成焊丝后大小均匀，焊丝制作工艺简单，生产效率高且性能稳定，焊点均匀、致密性好，焊接合格率高、牢固度好，0.8米高度跌落后焊接处无开裂，满足真空保温杯的相关要求。
附图说明
图1是本发明保温容器的结构示意图。
图2是本发明保温容器杯口部的结构示意图。
图3是本发明保温容器转接部的结构示意图。
图4是本发明保温容器的杯口部与转接部结合的结构示意图1。
图5是本发明保温容器的杯口部与转接部结合的结构示意图2。
图6是本发明保温容器的杯口部与转接部结合后与内胆结合的结构示意图。
1-内胆；2-杯口部；21-外螺纹；22-台阶；23-弯折部；3-转接部；31-外沿；4-杯身部；5-焊料；6-焊料容腔。
具体实施方式
有关本发明的详细说明和技术内容，配合图式说明如下，然而所附图式仅提供参考与说明用，非用以限制本发明。
请参阅图1，本发明公开了一种保温容器。如图所示：它包括钛材料内胆1和外壳，该外壳从容器口部至底部依次由钛材料杯口部2、不锈钢转接部3和呈杯状的直径大于内胆直径的具有口部的不锈钢杯身部4构成；杯口部2顶端与内胆1口部焊接，杯口部2下半部分与转接部3固定连接；如图3所示，转接部3顶端设置有向外凸出的外沿31，杯身部4的口部与转接部3的外沿31焊接。
如图3、图4所示，转接部3为顶端设置向外凸出的外沿31的筒体；转接部3套接在杯口部2下半部分外侧，与杯口部2过盈配合。
优选地，如图2所示，杯口部2下部设置折向内侧的台阶22，当转接部3套接于杯口部2下半部分时，台阶22可起到限位作用。也可以在杯口部2设置用于与容器盖配合的外螺纹21。
实施例一，如图4所示，杯口部2下半部分高度大于转接部3高度，杯口部2超出转接部3底部部分向外、向上弯折形成弯折部23，转接部3的筒体插接于杯口部2外壁与弯折部23之间，通过高压将转接部2紧紧压铸在弯折部23与杯口部2外壁之间。
实施例一的保温容器的制造方法步骤如下：
第一步，将钛材料杯口部2插入不锈钢转接部3中，二者过盈配合，转接部3顶端设置有向外凸出的外沿31；
第二步，将杯口部2超出转接部3底部部分向外、向上弯折形成弯折部23，并夹紧转接部3的筒体，然后将杯口部2下半部分与转接部3筒体压铸在一起形成钛材料与不锈钢材料的组合体；
第三步，将钛材料内胆1插入组合体，将组合体中钛材料杯口部2的口部与内胆1口部焊接在一起；因为杯口部2与内胆1均是钛材料，二者的焊接不需要用到焊料。
第四步，再将杯身部4套接在内胆1外部，其口部与组合体中转接部3顶端外沿31焊接在一起；因为杯身部4与转接部3均是不锈钢材料，二者的焊接也不需要用到焊料。
用该方法制造的保温容器，制造过程没有涉及到焊料的使用，也自然不存在重金属迁移的问题。
实施例二，如图5所示，杯口部2下半部分高度大于转接部3高度，杯口部2超出转接部3底部部分向外、向上弯折形成弯折部23，弯折部23与转接部3筒体外壁之间构成环形的焊料容腔6，焊料5置于焊料容腔6内，将杯口部2与转接部3焊接在一起。
实施例二的保温容器的制造方法，制造方法步骤如下：
第一步，将钛材料杯口部2插入不锈钢转接部3中，二者过盈配合，转接部3顶端设置有向外凸出的外沿31；
第二步，将杯口部2超出转接部3底部部分向外、向上弯折形成弯折部23，并夹紧转接部3的筒体，弯折部23与转接部3筒体外壁之间构成环形的焊料容腔6，焊料5置于其中，将杯口部2与转接部3焊接在一起形成钛材料与不锈钢材料的组合体；
第三步，如图6，将钛材料内胆1插入组合体，将组合体中钛材料杯口部 2的口部与内胆1口部焊接在一起；因为焊料5仅存在于转接部3的外部，而且距离内胆1口部足够远，焊料5中的重金属不可能迁移到内胆1中。并且，杯口部2与转接部3是另行单独焊接成组合体后再与内胆1焊接，内胆1根本接触不到焊料5，自然也不存在焊料5中重金属迁移到内胆1的情况。
第四步，再将杯身部4套接在内胆1外部，其口部与组合体中转接部3顶端外沿31焊接在一起。
步骤第三中焊料5按照重量百分比包括，银45-75％、铜10-30％、钛8-25％、铟0.5-3％、镍0.3-1％。制备时，将粉状银、铜、钛或铟或镍按比例搅拌均匀，后通过模具压铸成固体，再通过抽丝机将其拉成直径为0.5—2.0mm焊丝。
焊接时，将焊丝置于焊料容腔6内，采用普通真空钎焊工艺步骤进行真空钎焊，真空钎焊的温度为750-850℃，该真空钎焊的保温时间为50-70min。
因为焊丝是焊料5经强力挤压后制作成丝的，致密性非常好，抽成焊丝后大小均匀，当焊丝置于焊料容腔6中进行焊接时，焊点分布均匀，致密性好，牢固度好，焊接后的成品，从0.8米高度跌落焊接处都不会开裂。克服了粉末状焊料由于填充不均匀导致的焊点分布不均、致密性差、牢固度差，0.4米高度跌落后焊接处容易开裂的缺点。
以上所述者，仅为本发明的较佳可行实施例而已，非因此即局限本发明的专利范围，举凡运用本发明说明书及图式内容所为的等效结构变化，均理同包含于本发明的权利范围内，合予陈明。

Claims (10)

  1. 一种保温容器，它包括钛材料内胆(1)和外壳；其特征在于：外壳从容器口部至底部依次包括钛材料杯口部(2)、不锈钢转接部(3)和呈杯状的直径大于内胆直径的具有口部的不锈钢杯身部(4)；杯口部(2)与内胆(1)口部焊接，杯口部(2)下半部分与转接部(3)固定连接，转接部(3)顶端设置有向外凸出的外沿(31)，杯身部(4)的口部与转接部的外沿(31)焊接。
  2. 根据权利要求1所述的保温容器，其特征在于：转接部(3)套接在杯口部(2)下半部分外侧，与杯口部(2)过盈配合。
  3. 根据权利要求1或2所述的保温容器，其特征在于：该转接部(3)为顶端设置向外凸出的外沿(31)的筒体；杯口部(2)下半部分高度大于转接部(3)高度，杯口部(2)超出转接部(3)底部部分向外、向上弯折形成弯折部(23)；该转接部(3)的筒体插接于杯口部(2)外壁与弯折部(23)之间。
  4. 如权利要求3所述的保温容器的制造方法，其特征在于：制造方法步骤如下：
    第一步，将钛材料杯口部(2)插入不锈钢转接部(3)中，二者过盈配合，转接部(3)顶端设置有向外凸出的外沿(31)；
    第二步，将杯口部(2)超出转接部(3)底部部分向外、向上弯折形成弯折部(23)，并夹紧转接部(3)的筒体，然后将杯口部(2)下半部分与转接部(3)的筒体压铸在一起形成钛材料与不锈钢材料的组合体；
    第三步，将钛材料内胆(1)插入组合体，将组合体中钛材料杯口部(2)的口部与内胆(1)口部焊接在一起；
    第四步，再将杯身部(4)套接在内胆(1)外部，其口部与组合体中转接部(3)顶端外沿(31)焊接在一起。
  5. 根据权利要求4所述的保温容器的制造方法，其特征在于：杯口部(2) 下部设置折向内侧的台阶(22)；台阶(22)在所述第一步中对转接部(3)套于杯口部(2)的下半部分的位置起到限位作用。
  6. 根据权利要求1或2所述的保温容器，其特征在于：该转接部(3)为顶端设置向外凸出的外沿(31)的筒体；杯口部(2)下半部分高度大于转接部(3)高度，杯口部(2)超出转接部(3)底部部分向外、向上弯折形成弯折部(23)，弯折部(23)与转接部(3)的筒体外壁之间构成环形的焊料容腔(6)。
  7. 如权利要求6所述的保温容器的制造方法，其特征在于：制造方法步骤如下：
    第一步，将钛材料杯口部(2)插入不锈钢转接部(3)中，二者过盈配合，转接部(3)顶端设置有向外凸出的外沿(31)；
    第二步，将杯口部(2)超出转接部(3)底部部分向外、向上弯折形成弯折部(23)，并夹紧转接部(3)的筒体，弯折部(23)与转接部(3)的筒体外壁之间构成环形的焊料容腔(6)，焊料(5)置于其中，将杯口部(2)与转接部(3)焊接在一起形成钛材料与不锈钢材料的组合体；
    第三步，将钛材料内胆(1)插入组合体，将组合体中钛材料杯口部(2)的口部与内胆(1)口部焊接在一起；
    第四步，再将杯身部(4)套接在内胆(1)外部，其口部与组合体中转接部(3)顶端外沿(31)焊接在一起。
  8. 根据权利要求7所述的保温容器的制造方法，其特征在于：杯口部(2)下部设置折向内侧的台阶(22)；台阶(22)在所述第一步中对转接部(3)套于杯口部(2)的下半部分的位置起到限位作用。
  9. 根据权利要求7所述的保温容器的制造方法，其特征在于：焊料(5)按照重量百分比包括，银45-75％、铜10-30％、钛8-25％、铟0.5-3％、镍0.3-1％。
  10. 根据权利要求9所述的保温容器的制造方法，其特征在于：焊料(5)是直径为0.5-2.0mm的焊丝。
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