WO2019127908A1 - Method for preparing airtight and insulated container, and insulated container prepared by same - Google Patents
Method for preparing airtight and insulated container, and insulated container prepared by same Download PDFInfo
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- WO2019127908A1 WO2019127908A1 PCT/CN2018/078674 CN2018078674W WO2019127908A1 WO 2019127908 A1 WO2019127908 A1 WO 2019127908A1 CN 2018078674 W CN2018078674 W CN 2018078674W WO 2019127908 A1 WO2019127908 A1 WO 2019127908A1
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- outer casing
- sealing layer
- low temperature
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- temperature sealing
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- 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
- B65D81/3837—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 rigid container in the form of a bottle, jar or like container
- B65D81/3841—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 rigid container in the form of a bottle, jar or like container formed with double walls, i.e. hollow
Definitions
- the invention relates to a method for preparing a heat-tight container, wherein the heat-insulating container is a heat-insulating container formed by vacuuming between a casing and an inner casing made of metal, and a sealed vacuum insulation chamber is formed between the outer casing and the inner casing. , including the following steps:
- Step B fixing the auxiliary member at a corner position of the inner side of the outer casing of the heat insulating container, and the low temperature sealing layer faces the outer casing, so that the low temperature sealing layer is fixed between the high temperature covering layer and the outer casing;
- the low temperature sealing layer is a metal material having a melting point of 200 ° C to 1200 ° C;
- the auxiliary member is fixed at a corner position on the inner side of the bottom of the outer casing of the heat preservation container, the low temperature sealing layer faces the bottom of the outer casing, so that the low temperature sealing layer is fixed on the high temperature coating layer.
- the outer casing is provided with the exhaust hole, the auxiliary member covers the exhaust hole, and the low temperature sealing layer seals the exhaust hole.
- the auxiliary member is disposed in the heat retention chamber, the auxiliary member is fixed to a rim of the bottom of the outer casing, and the low temperature sealing layer and the inner surface of the outer casing are in close contact; the auxiliary member covers the vent hole The low temperature sealing layer seals the vent hole.
- the auxiliary member is disposed in the vacuum heat preservation chamber, the top of the outer casing is provided with an opening, the opening is curved, the opening is provided with a venting hole, and the auxiliary member is fixed to the opening of the outer casing,
- An auxiliary member covers the vent hole, the low temperature sealing layer is disposed between the high temperature cover layer and the opening, and the low temperature sealing layer seals the vent hole.
- the auxiliary member is fixed at a corner position of an inner side of the outer casing of the heat-insulating container, and the fixing manner may be welding, adhesion, or the like, and the auxiliary member is provided by a low-temperature sealing layer and The high temperature cover is welded.
- the auxiliary member 1 is disposed on the inner side of the outer casing 2 (i.e., inside the heat retention chamber 4), the insulated container made is invisible from the outside, and is more beautiful; and the auxiliary member 1 disposed inside is collided. It is not easy to touch in the middle, so it is not easy to be knocked off, so it is not easy to leak due to collision.
- the high temperature cover layer 12 and the outer casing 2 may be made of the same metal material or different metal materials.
- the melting point of titanium metal is 1668 ° C, and the melting point of stainless steel is also above 1200 ° C. Therefore, the melting points of titanium metal and stainless steel are higher than that of the low temperature sealing layer 11 .
- the low temperature sealing layer 11 melts.
- the outer casing 2 of the titanium metal or stainless steel and the high temperature cover layer 12 are far from reaching their own melting points, so that the low temperature sealing layer 11 flows in the cavity between the high temperature cover layer 12 and the outer casing 2 to seal the said Vent hole 13.
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Abstract
An insulated container and a preparation method therefor. The insulated container is formed by vacuuming the space between an outer shell (2) and an inner shell (3) that are made of metal; an auxiliary member (1) is fixed at a corner of the inner side of the outer shell (2); the auxiliary member (1) is formed by stacking and welding a low temperature sealing layer (11) and a high temperature covering layer (12); the low temperature sealing layer (11) is made of a metal which melts at a melting temperature, and the high temperature covering layer (12) is made of a metal that does not melt at the melting temperature; the low temperature sealing layer (11) is fixed between the high temperature coating layer (12) and the outer shell (2); a vent hole (13) is drilled through the auxiliary member (1) and the outer shell (2). The insulted container is placed in a vacuuming chamber; the temperature of the vacuuming chamber is gradually increased to the melting temperature while vacuumizing, and the low temperature sealing layer (11) is melted by heat and flows until the vent hole (13) is sealed.
Description
本发明涉及真空保温容器领域，尤其涉及一种气密性好的保温容器制备方法及其制备的保温容器。The invention relates to the field of vacuum heat preservation containers, in particular to a preparation method of a heat-tight thermal insulation container and an insulated container prepared thereby.
现有的无尾真空保温容器制造方法是在容器主体的底部，采用玻璃胶在容器主体的外部进行封堵空洞，然而由于容器主体为金属材料，而玻璃胶为非金属材料，因此玻璃胶和容器主体的融合度和粘合度并不好，而且玻璃胶容易因高温或震动而裂开，长时间使用后玻璃胶容易掉落，空气进入保温腔，导致真空保温容器不保温，从而使得真空保温容器的使用寿命大大缩短。若将玻璃胶换成低温金属材料，则在抽真空加热时低温金属材料容易氧化而产生裂纹缝隙，从而导致的漏气问题，气密性差。The existing method for manufacturing the tailless vacuum heat preservation container is to seal the cavity outside the container body by using glass glue at the bottom of the container body. However, since the container body is a metal material and the glass glue is a non-metal material, the glass glue and the glass glue are The degree of fusion and adhesion of the container body is not good, and the glass glue is easily cracked by high temperature or vibration. After long time use, the glass glue is easy to fall, and the air enters the heat preservation chamber, so that the vacuum heat preservation container is not insulated, thereby making the vacuum The service life of the insulated container is greatly shortened. When the glass glue is replaced with a low-temperature metal material, the low-temperature metal material is easily oxidized during the vacuum heating to cause a crack gap, resulting in a gas leakage problem and poor airtightness.
发明内容Summary of the invention
本发明的目的在于提出一种气密性好的保温容器制备方法及其制备的保温容器，低温密封层不易在抽真空时氧化而产生裂纹缝隙所导致的漏气问题，提高成品率和气密性。The object of the present invention is to provide a method for preparing a heat-tight container with good airtightness and a heat-insulating container prepared by the same, and the low-temperature sealing layer is not easy to be oxidized during vacuuming to cause a gas leakage problem caused by a crack gap, thereby improving yield and airtightness. .
为达此目的，本发明采用以下技术方案：To this end, the present invention employs the following technical solutions:
一种气密性好的保温容器制备方法，所述保温容器是由金属制成的外壳和内壳之间抽真空形成的保温容器，所述外壳和内壳之间形成密封的真空的保温腔，包括以下步骤：The invention relates to a method for preparing a heat-tight container, wherein the heat-insulating container is a heat-insulating container formed by vacuuming between a casing and an inner casing made of metal, and a sealed vacuum insulation chamber is formed between the outer casing and the inner casing. , including the following steps:
步骤A，制备辅助件，所述辅助件为低温密封层和高温覆盖层叠放起来相互焊接形成的，所述低温密封层由在熔融温度时会熔化的金属制成，所述高温覆盖层由在所述熔融温度时不会熔化的金属制成；Step A, preparing an auxiliary member which is formed by welding a low-temperature sealing layer and a high-temperature covering layer which are made of a metal which is melted at a melting temperature, and the high-temperature coating layer is formed by a metal that does not melt at the melting temperature;
步骤B，在保温容器的外壳的内侧的拐角位置固定所述辅助件，并且所述低温密封层朝向所述外壳，从而所述低温密封层固定在所述高温覆盖层和外壳之间；Step B, fixing the auxiliary member at a corner position of the inner side of the outer casing of the heat insulating container, and the low temperature sealing layer faces the outer casing, so that the low temperature sealing layer is fixed between the high temperature covering layer and the outer casing;
步骤C，贯穿所述辅助件和外壳钻出排气孔；Step C, drilling a vent hole through the auxiliary member and the outer casing;
步骤D，将所述内壳安装在所述外壳内，从而在外壳和内壳之间形成所述保温腔；Step D, installing the inner casing in the outer casing to form the heat retention chamber between the outer casing and the inner casing;
步骤E，使所述低温密封层在下，所述高温覆盖层在上，然后将所述保温容器放置在抽真空室内，所述抽真空室逐渐趋向真空状态从而通过所述排气孔将所述保温腔抽真空；Step E, placing the low temperature sealing layer under, the high temperature coating layer on, and then placing the heat preservation container in an evacuation chamber, the vacuum chamber gradually moving toward a vacuum state to pass the vent hole The vacuum chamber is evacuated;
同时所述抽真空室的温度逐渐升高至所述熔融温度，所述低温密封层受热熔化而流动直至密封所述排气孔，从而制成所述保温容器。At the same time, the temperature of the evacuation chamber is gradually increased to the melting temperature, and the low temperature sealing layer is melted by heat to flow until the vent hole is sealed, thereby making the heat insulating container.
优选地，所述低温密封层为熔点在200℃～1200℃的金属材料；Preferably, the low temperature sealing layer is a metal material having a melting point of 200 ° C to 1200 ° C;
所述高温覆盖层为钛金属或不锈钢；The high temperature cover layer is titanium metal or stainless steel;
所述外壳为钛金属或不锈钢；The outer casing is titanium metal or stainless steel;
所述步骤E的所述熔融温度不超过1200℃。The melting temperature of the step E does not exceed 1200 °C.
优选地，所述步骤B中，在保温容器的外壳的底部的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的底部，从而所述低温密封层固定在高温覆盖层和外壳之间；Preferably, in the step B, the auxiliary member is fixed at a corner position on the inner side of the bottom of the outer casing of the heat preservation container, the low temperature sealing layer faces the bottom of the outer casing, so that the low temperature sealing layer is fixed on the high temperature coating layer. Between and the outer casing;
所述步骤E中，将所述外壳的底部朝下地放置在抽真空室内。In the step E, the bottom of the outer casing is placed downward in the vacuum chamber.
优选地，所述步骤B中，在保温容器的外壳的侧壁的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的侧壁，从而所述低温密封层固定高温覆盖层和外壳之间；Preferably, in the step B, the auxiliary member is fixed at a corner position of the inner side of the side wall of the outer casing of the heat preservation container, the low temperature sealing layer faces the side wall of the outer casing, so that the low temperature sealing layer is fixed with high temperature coverage. Between the layer and the outer casing;
所述步骤E中，将所述外壳的侧壁的焊接有所述辅助件的一侧朝下地放置 在抽真空室内中。In the step E, the side wall of the outer casing to which the auxiliary member is welded is placed in the vacuum chamber.
优选地，所述步骤B中，在保温容器的外壳的顶部的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的顶部，从而所述低温密封层固定高温覆盖层和外壳之间；Preferably, in the step B, the auxiliary member is fixed at a corner position on the inner side of the top of the outer casing of the heat insulating container, the low temperature sealing layer facing the top of the outer casing, so that the low temperature sealing layer fixes the high temperature covering layer and Between the outer casings;
所述步骤E中，将所述外壳的顶部朝下地放置在抽真空室内中。In the step E, the top of the outer casing is placed in the vacuum chamber.
优选地，使用所述气密性好的保温容器制备方法制备的保温容器：Preferably, the insulated container prepared by using the airtight and good insulated container preparation method:
所述保温容器是由金属制成的外壳和内壳之间抽真空形成的保温容器，所述外壳和内壳之间形成密封的真空的保温腔；The heat preservation container is an insulated container formed by vacuuming between an outer casing and an inner casing made of metal, and a sealed vacuum insulation chamber is formed between the outer casing and the inner casing;
所述外壳的内侧的拐角位置固定有所述辅助件，所述低温密封层朝向所述外壳，从而所述低温密封层固定在所述高温覆盖层和外壳之间；The auxiliary device is fixed at a corner position of the inner side of the outer casing, and the low temperature sealing layer faces the outer casing, so that the low temperature sealing layer is fixed between the high temperature covering layer and the outer casing;
所述外壳设有所述排气孔，所述辅助件覆盖所述排气孔，并且所述低温密封层密封所述排气孔。The outer casing is provided with the exhaust hole, the auxiliary member covers the exhaust hole, and the low temperature sealing layer seals the exhaust hole.
优选地，所述辅助件设置于所述保温腔，所述辅助件固定于外壳的底部的边沿，并且所述低温密封层和外壳的内表面紧贴；所述辅助件覆盖所述排气孔，所述低温密封层密封所述排气孔。Preferably, the auxiliary member is disposed in the heat retention chamber, the auxiliary member is fixed to a rim of the bottom of the outer casing, and the low temperature sealing layer and the inner surface of the outer casing are in close contact; the auxiliary member covers the vent hole The low temperature sealing layer seals the vent hole.
优选地，所述外壳的底部设有排气凹槽，所述排气凹槽从内向外突出，所述外壳的排气孔设置于所述排气凹槽；Preferably, the bottom of the outer casing is provided with an exhaust groove, the exhaust groove protrudes from the inner side, and the exhaust hole of the outer casing is disposed in the exhaust groove;
所述辅助件固定于所述排气凹槽内，所述低温密封层密封所述排气孔。The auxiliary member is fixed in the exhaust groove, and the low temperature sealing layer seals the exhaust hole.
优选地，所述辅助件设置于所述真空保温腔，所述外壳的顶部设有开口，所述开口弯曲，所述开口设有排气孔，所述辅助件固定于外壳的开口，所述辅助件覆盖所述排气孔，所述低温密封层设置在高温覆盖层和开口之间，并且所述低温密封层密封所述排气孔。Preferably, the auxiliary member is disposed in the vacuum heat preservation chamber, the top of the outer casing is provided with an opening, the opening is curved, the opening is provided with a venting hole, and the auxiliary member is fixed to the opening of the outer casing, An auxiliary member covers the vent hole, the low temperature sealing layer is disposed between the high temperature cover layer and the opening, and the low temperature sealing layer seals the vent hole.
优选地，所述外壳的侧壁设有排气凹槽，所述排气凹槽从内向外突出，所 述外壳的排气孔设置于所述排气凹槽；Preferably, the side wall of the outer casing is provided with an exhaust groove, the exhaust groove protrudes from the inner side, and the exhaust hole of the outer casing is disposed in the exhaust groove;
所述辅助件固定于所述排气凹槽，所述辅助件的高温覆盖层从所述外壳的内侧覆盖整个所述排气凹槽，所述低温密封层密封所述排气孔。The auxiliary member is fixed to the exhaust groove, and a high temperature cover layer of the auxiliary member covers the entire exhaust groove from an inner side of the outer casing, and the low temperature sealing layer seals the exhaust hole.
所述气密性好的保温容器制备方法中，在所述保温容器的外壳的内侧的拐角位置固定所述辅助件，固定方式可为焊接、粘附等，所述辅助件由低温密封层和高温覆盖层焊接而成。加热抽真空时，将所述保温容器的焊接有所述辅助件的一侧朝下地进行抽真空，使所述保温腔抽完真空后，逐渐加热至所述熔融温度，低温密封层熔化并在重力作用下在高温覆盖层和外壳的拐角位置之间发生流动，从而熔化的低温密封层对排气孔进行封堵，再冷却至常温使得低温密封层固化，从而制得真空保温的保温容器。所述保温容器可为真空保温瓶、真空保温杯和真空保温盒等，可采用高真空钎焊设备进行抽真空。In the method for preparing a heat-tight insulated container, the auxiliary member is fixed at a corner position of an inner side of the outer casing of the heat-insulating container, and the fixing manner may be welding, adhesion, or the like, and the auxiliary member is provided by a low-temperature sealing layer and The high temperature cover is welded. When heating and vacuuming, vacuuming the side of the heat insulating container with the auxiliary member facing downward, after the vacuuming chamber is evacuated, gradually heating to the melting temperature, and the low temperature sealing layer is melted and Under the action of gravity, a flow occurs between the high temperature coating layer and the corner position of the outer casing, so that the molten low temperature sealing layer blocks the vent hole, and then cools to a normal temperature to solidify the low temperature sealing layer, thereby preparing a vacuum insulated thermal insulation container. The heat preservation container may be a vacuum thermos flask, a vacuum heat preservation cup and a vacuum heat preservation box, etc., and vacuuming may be performed by using a high vacuum brazing device.
保温容器密封效果的短板是低温密封层在熔化过程中的相变导致的不可预料的潜在裂纹，一旦产生裂纹，保温腔会隐秘地逐渐失去真空效果。本发明在低温密封层的外侧另外设置了在所述熔融温度不产生相变的高温覆盖层，将整个低温密封层均密封在外壳的内侧的拐角位置和高温覆盖层之间，从而在重力作用下所述高温覆盖层始终和低温密封层紧贴，避免裂纹的产生；The short plate of the sealing effect of the heat insulating container is an unpredictable potential crack caused by the phase change of the low temperature sealing layer during the melting process. Once the crack is generated, the heat insulating cavity will gradually lose the vacuum effect in a hidden manner. The invention additionally provides a high-temperature coating layer on the outer side of the low-temperature sealing layer that does not cause a phase change at the melting temperature, and seals the entire low-temperature sealing layer between the corner position of the inner side of the outer casing and the high-temperature covering layer, thereby exerting gravity The high temperature coating layer is always in close contact with the low temperature sealing layer to avoid the generation of cracks;
而且加工步骤少，仅需将辅助件固定在外壳的内侧的拐角位置，即可避免低温密封层在熔化过程中与高温覆盖层分离，无需高温覆盖层的边沿和外壳焊接；Moreover, the processing steps are small, and only the auxiliary member is fixed at the corner position of the inner side of the outer casing, so that the low-temperature sealing layer can be prevented from being separated from the high-temperature covering layer during the melting process, and the edge of the high-temperature covering layer and the outer casing are not required to be welded;
所述外壳和高温覆盖层上都开设有所述排气孔，所述低温密封层的相变会封住两个排气孔，这两个抽气孔有任何一个被封住都可以达到彻底真空密封效果，从而保温容器的真空泄漏概率大大降低，成品率更高，产品更为耐用；The venting opening is formed on the outer casing and the high-temperature covering layer, and the phase change of the low-temperature sealing layer seals the two venting holes, and any one of the two venting holes is sealed to achieve a complete vacuum The sealing effect, so that the vacuum leakage probability of the insulated container is greatly reduced, the yield is higher, and the product is more durable;
由于辅助件设置于外壳的内侧(即保温腔内)，制成的所述保温容器从外部 看不到辅助件的位置，更为美观；而且设置于内部的辅助件在碰撞中不直接触碰，不容易碰掉，因此不容易因碰撞造成的真空泄漏。Since the auxiliary member is disposed on the inner side of the outer casing (that is, in the heat retention chamber), the made heat preservation container can not see the position of the auxiliary member from the outside, and is more beautiful; and the auxiliary member disposed inside does not directly touch the collision. It is not easy to get rid of, so it is not easy to leak due to collision.
因此，本发明制备的是一个新式保温容器，封堵排气孔的辅助件具有两层不同的金属(低温密封层和高温覆盖层)，封堵排气孔的是在所述熔融温度会熔化的那层金属，另一层金属则不会在所述熔融温度熔化。Therefore, the present invention prepares a new type of insulated container, and the auxiliary member for sealing the vent hole has two layers of different metals (low temperature sealing layer and high temperature covering layer), and the venting hole is melted at the melting temperature. The layer of metal, the other layer of metal will not melt at the melting temperature.
附图对本发明做进一步说明，但附图中的内容不构成对本发明的任何限制。The drawings further illustrate the invention, but the contents of the drawings do not constitute any limitation of the invention.
图1是本发明其中一个实施例的保温容器内部结构示意图；1 is a schematic view showing the internal structure of an insulated container according to an embodiment of the present invention;
图2是本发明其中一个实施例的底部抽真空流程图；Figure 2 is a bottom drawing flowchart of one embodiment of the present invention;
图3是本发明其中一个实施例的保温容器内部结构示意图；3 is a schematic view showing the internal structure of an insulated container according to an embodiment of the present invention;
图4是本发明其中一个实施例的底部抽真空流程图；Figure 4 is a bottom drawing flowchart of one embodiment of the present invention;
图5是本发明其中一个实施例的底部抽真空流程图；Figure 5 is a bottom drawing flowchart of one embodiment of the present invention;
图6是本发明其中一个实施例的底部抽真空流程图；Figure 6 is a bottom drawing flowchart of one embodiment of the present invention;
图7是本发明其中一个实施例的保温容器内部结构示意图；Figure 7 is a schematic view showing the internal structure of an insulated container according to one embodiment of the present invention;
图8是本发明其中一个实施例的顶部抽真空流程图；Figure 8 is a top vacuum flow diagram of one embodiment of the present invention;
图9是本发明其中一个实施例的顶部抽真空流程图；Figure 9 is a top vacuum flow diagram of one embodiment of the present invention;
图10是本发明其中一个实施例的顶部抽真空流程图；Figure 10 is a top vacuum flow diagram of one embodiment of the present invention;
图11是本发明其中一个实施例的侧壁抽真空前结构图；Figure 11 is a structural view of a side wall before vacuuming according to an embodiment of the present invention;
图12是本发明其中一个实施例的侧壁抽真空后结构图；Figure 12 is a structural view of a side wall of a vacuum evacuation of one embodiment of the present invention;
图13是本发明其中一个实施例的侧壁抽真空前结构图；Figure 13 is a structural view of a side wall before vacuuming according to an embodiment of the present invention;
图14是本发明其中一个实施例的侧壁抽真空后结构图。Figure 14 is a structural view of a side wall of a vacuum evacuation of one embodiment of the present invention.
其中：辅助件1；低温密封层11；高温覆盖层12；外壳2；内壳3；保温腔 4；排气孔13；排气凹槽21；开口22。Wherein: auxiliary member 1; low temperature sealing layer 11; high temperature covering layer 12; outer casing 2; inner casing 3; holding chamber 4; venting opening 13; venting groove 21; opening 22.
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
本实施例的气密性好的保温容器制备方法，如图1所示，所述保温容器是由金属制成的外壳2和内壳3之间抽真空形成的保温容器，所述外壳2和内壳3之间形成密封的真空的保温腔4，包括以下步骤：In the method for preparing a heat-tight container of the present embodiment, as shown in FIG. 1, the heat-insulating container is an insulated container formed by vacuuming between a casing 2 and an inner casing 3 made of metal, and the casing 2 and A vacuum insulated chamber 4 is formed between the inner casings 3 and includes the following steps:
步骤A，制备辅助件1，所述辅助件1为低温密封层11和高温覆盖层12叠放起来相互焊接形成的，所述低温密封层11由在熔融温度时会熔化的金属制成，所述高温覆盖层12由在所述熔融温度时不会熔化的金属制成；In step A, an auxiliary member 1 is prepared, which is formed by stacking a low temperature sealing layer 11 and a high temperature covering layer 12 which are made of a metal which is melted at a melting temperature. The high temperature cover layer 12 is made of a metal that does not melt at the melting temperature;
步骤B，在保温容器的外壳2的内侧的拐角位置固定所述辅助件1，并且所述低温密封层11朝向所述外壳2，从而所述低温密封层11固定在所述高温覆盖层12和外壳2之间；Step B, fixing the auxiliary member 1 at a corner position of the inner side of the outer casing 2 of the heat insulating container, and the low temperature sealing layer 11 faces the outer casing 2, whereby the low temperature sealing layer 11 is fixed to the high temperature covering layer 12 and Between the outer casings 2;
步骤C，贯穿所述辅助件1和外壳2钻出排气孔13；Step C, through the auxiliary member 1 and the outer casing 2 drill venting holes 13;
步骤D，将所述内壳3安装在所述外壳2内，从而在外壳2和内壳3之间形成所述保温腔4；Step D, the inner casing 3 is installed in the outer casing 2, thereby forming the thermal insulation chamber 4 between the outer casing 2 and the inner casing 3;
步骤E，使所述低温密封层11在下，所述高温覆盖层12在上，然后将所述保温容器放置在抽真空室内，所述抽真空室逐渐趋向真空状态从而通过所述排气孔13将所述保温腔4抽真空；Step E, the low temperature sealing layer 11 is placed below, the high temperature covering layer 12 is placed thereon, and then the heat insulating container is placed in the vacuuming chamber, and the vacuuming chamber gradually approaches a vacuum state to pass through the exhaust hole 13 Vacuuming the holding chamber 4;
同时所述抽真空室的温度逐渐升高至所述熔融温度，所述低温密封层11受热熔化而流动直至密封所述排气孔13，从而制成所述保温容器。At the same time, the temperature of the evacuation chamber is gradually increased to the melting temperature, and the low temperature sealing layer 11 is melted by heat until the vent hole 13 is sealed, thereby making the heat insulating container.
所述气密性好的保温容器制备方法中，在所述保温容器的外壳2的内侧的拐角位置固定所述辅助件1，固定方式可为焊接、粘附等，所述辅助件1由低温密封层11和高温覆盖层12焊接而成。加热抽真空时，将所述保温容器的焊接 有所述辅助件1的一侧朝下地进行抽真空，使所述保温腔4抽完真空后，逐渐加热至所述熔融温度，低温密封层11熔化并在重力作用下在高温覆盖层12和外壳2的拐角位置之间发生流动，从而熔化的低温密封层11对排气孔13进行封堵，再冷却至常温使得低温密封层11固化，从而制得真空保温的保温容器。所述保温容器可为真空保温瓶、真空保温杯和真空保温盒等，可采用高真空钎焊设备进行抽真空。In the method for preparing the airtight container, the auxiliary member 1 is fixed at a corner position of the inner side of the outer casing 2 of the heat insulating container, and the fixing means 1 may be welded, adhered, etc., and the auxiliary member 1 is low temperature. The sealing layer 11 and the high temperature cover layer 12 are welded. When the vacuum is heated, the side of the heat insulating container to which the auxiliary member 1 is welded is vacuumed downward, and after the vacuum chamber 4 is evacuated, the temperature is gradually heated to the melting temperature, and the low temperature sealing layer 11 is heated. Melting and flowing under the action of gravity between the high temperature cover layer 12 and the corner position of the outer casing 2, so that the molten low temperature sealing layer 11 blocks the vent hole 13 and is cooled to a normal temperature so that the low temperature sealing layer 11 is solidified, thereby A vacuum insulated insulated container is produced. The heat preservation container may be a vacuum thermos flask, a vacuum heat preservation cup and a vacuum heat preservation box, etc., and vacuuming may be performed by using a high vacuum brazing device.
保温容器密封效果的短板是低温密封层11在熔化过程中的相变导致的不可预料的潜在裂纹，一旦产生裂纹，保温腔4会隐秘地逐渐失去真空效果。本发明在低温密封层11的外侧另外设置了在所述熔融温度不产生相变的高温覆盖层12，将整个低温密封层11均密封在外壳2的内侧的拐角位置和高温覆盖层12之间，从而在重力作用下所述高温覆盖层12始终和低温密封层11紧贴，避免裂纹的产生；The short plate of the sealing effect of the heat insulating container is an unpredictable potential crack caused by the phase change of the low temperature sealing layer 11 during the melting process, and once the crack is generated, the heat insulating cavity 4 will gradually lose the vacuum effect in a hidden manner. The present invention additionally provides a high temperature cover layer 12 which does not undergo a phase change at the melting temperature on the outer side of the low temperature sealing layer 11, and seals the entire low temperature sealing layer 11 between the corner position of the inner side of the outer casing 2 and the high temperature cover layer 12. Therefore, the high temperature cover layer 12 is always in close contact with the low temperature sealing layer 11 under the action of gravity to avoid the generation of cracks;
而且加工步骤少，仅需将辅助件1固定在外壳2的内侧的拐角位置，即可避免低温密封层11在熔化过程中与高温覆盖层12分离，无需高温覆盖层12的边沿和外壳2焊接；Moreover, the processing steps are small, and only the auxiliary member 1 needs to be fixed at the corner position of the inner side of the outer casing 2, so that the low-temperature sealing layer 11 can be prevented from being separated from the high-temperature covering layer 12 during the melting process, and the edge of the high-temperature covering layer 12 and the outer casing 2 are not required to be welded. ;
所述外壳2和高温覆盖层12上都开设有所述排气孔13，所述低温密封层11的相变会封住两个排气孔13，这两个抽气孔13有任何一个被封住都可以达到彻底真空密封效果，从而保温容器的真空泄漏概率大大降低，成品率更高，产品更为耐用；The venting opening 13 is defined in the outer casing 2 and the high-temperature covering layer 12. The phase change of the low-temperature sealing layer 11 seals the two venting holes 13, and any one of the two venting holes 13 is sealed. The vacuum sealing effect can be achieved by living, so that the vacuum leakage probability of the heat preservation container is greatly reduced, the yield is higher, and the product is more durable;
由于辅助件1设置于外壳2的内侧(即保温腔4内)，制成的所述保温容器从外部看不到辅助件1的位置，更为美观；而且设置于内部的辅助件1在碰撞中不直接触碰，不容易碰掉，因此不容易因碰撞造成的真空泄漏。Since the auxiliary member 1 is disposed on the inner side of the outer casing 2 (i.e., inside the heat retention chamber 4), the insulated container made is invisible from the outside, and is more beautiful; and the auxiliary member 1 disposed inside is collided. It is not easy to touch in the middle, so it is not easy to be knocked off, so it is not easy to leak due to collision.
因此，本发明制备的是一个新式保温容器，封堵排气孔13的辅助件1具有 两层不同的金属(低温密封层11和高温覆盖层12)，封堵排气孔13的是在所述熔融温度会熔化的那层金属，另一层金属则不会在所述熔融温度熔化。Therefore, the present invention prepares a new type of insulated container, and the auxiliary member 1 for blocking the vent hole 13 has two layers of different metals (the low temperature sealing layer 11 and the high temperature covering layer 12), and the venting opening 13 is closed. The layer of metal where the melting temperature will melt, the other layer of metal will not melt at the melting temperature.
优选地，所述低温密封层11为熔点在200℃～1200℃的金属材料；Preferably, the low temperature sealing layer 11 is a metal material having a melting point of 200 ° C to 1200 ° C;
所述高温覆盖层12为钛金属或不锈钢；The high temperature cover layer 12 is titanium metal or stainless steel;
所述外壳2为钛金属或不锈钢；The outer casing 2 is titanium metal or stainless steel;
所述步骤E的所述熔融温度不超过1200℃。The melting temperature of the step E does not exceed 1200 °C.
所述低温密封层11为熔点在200℃～1200℃的金属材料，金属材料的低温密封层11和固态玻璃胶相比，不易碎裂，强度高，和同为金属材料的外壳2的融合度更好而不易脱落；优选地，所述低温密封层11采用铝合金或铜合金制备而成。铝合金的熔点在500℃～700℃范围内，铜合金的熔点在800℃～900℃范围内，熔点温度适中，和同为金属材料的外壳2的融合度更好而不易脱落。The low temperature sealing layer 11 is a metal material having a melting point of 200 ° C to 1200 ° C. The low temperature sealing layer 11 of the metal material is less prone to chipping and higher strength than the solid glass glue, and the degree of fusion of the outer casing 2 of the same metal material. It is better not to fall off; preferably, the low temperature sealing layer 11 is prepared using an aluminum alloy or a copper alloy. The melting point of the aluminum alloy is in the range of 500 ° C to 700 ° C, the melting point of the copper alloy is in the range of 800 ° C to 900 ° C, the melting point temperature is moderate, and the degree of fusion of the outer shell 2 which is the same as the metal material is better and not easy to fall off.
所述高温覆盖层12和所述外壳2可采用相同的金属材料，也可采用不同的金属材料。钛金属的熔点为1668℃，不锈钢的熔点也在1200℃以上，因此钛金属和不锈钢的熔点均高于低温密封层11，在低温密封层11的熔点已经到达时，低温密封层11熔化，而此时材料为钛金属或不锈钢的外壳2和高温覆盖层12还远远没有到达其自身熔点，因此低温密封层11在高温覆盖层12和外壳2之间的空腔中流动而可以密封所述排气孔13。The high temperature cover layer 12 and the outer casing 2 may be made of the same metal material or different metal materials. The melting point of titanium metal is 1668 ° C, and the melting point of stainless steel is also above 1200 ° C. Therefore, the melting points of titanium metal and stainless steel are higher than that of the low temperature sealing layer 11 . When the melting point of the low temperature sealing layer 11 has arrived, the low temperature sealing layer 11 melts. At this time, the outer casing 2 of the titanium metal or stainless steel and the high temperature cover layer 12 are far from reaching their own melting points, so that the low temperature sealing layer 11 flows in the cavity between the high temperature cover layer 12 and the outer casing 2 to seal the said Vent hole 13.
而且钛金属或不锈钢，坚固结实，耐碰耐磨，不易爆裂，避免了因爆裂引起的烫伤等特点，使用寿命长。钛金属还有杀菌效果。因此材料为钛金属或不锈钢的高温覆盖层12的物理性质、化学性质均稳定，在这个空腔中的低温密封层11不易在抽真空时氧化而产生裂纹缝隙，避免成品出现漏气问题，提高成品率和气密性。Moreover, titanium metal or stainless steel is strong and strong, resistant to impact and abrasion, not easy to burst, avoiding the characteristics of burns caused by bursting, and has a long service life. Titanium also has a bactericidal effect. Therefore, the physical properties and chemical properties of the high-temperature coating layer 12 made of titanium metal or stainless steel are stable, and the low-temperature sealing layer 11 in this cavity is not easily oxidized during vacuuming to generate crack gaps, thereby avoiding gas leakage problems in the finished product and improving Yield and air tightness.
抽真空的所述熔融温度须超过低温密封层11的熔点，但不能超过1200℃， 这样既能确低温密封层11熔化密封排气孔13，又避免温度过高而使高温覆盖层12发生熔化，影响密封效果。The melting temperature of the vacuum must exceed the melting point of the low temperature sealing layer 11, but cannot exceed 1200 ° C, so that the low temperature sealing layer 11 can be surely melted and sealed, and the high temperature coating layer 12 is prevented from melting due to excessive temperature. , affecting the sealing effect.
优选地，如图2所示，所述步骤B中，在保温容器的外壳2的底部的内侧的拐角位置固定所述辅助件1，所述低温密封层11朝向所述外壳2的底部，从而所述低温密封层11固定在高温覆盖层12和外壳2之间；Preferably, as shown in FIG. 2, in the step B, the auxiliary member 1 is fixed at a corner position on the inner side of the bottom of the outer casing 2 of the heat insulating container, and the low temperature sealing layer 11 faces the bottom of the outer casing 2, thereby The low temperature sealing layer 11 is fixed between the high temperature cover layer 12 and the outer casing 2;
所述步骤E中，将所述外壳2的底部朝下地放置在抽真空室内。In the step E, the bottom of the outer casing 2 is placed face down in the vacuum chamber.
可将辅助件1固定于所述外壳2的底部的内侧的拐角位置，抽真空时将所述外壳2的底部朝下地放置在抽真空室内进行抽真空并加热，从而保温腔4内的空气可完全抽出来，保温腔4实现完全真空，提高保温质量。The auxiliary member 1 can be fixed at a corner position of the inner side of the bottom of the outer casing 2. When the vacuum is applied, the bottom of the outer casing 2 is placed downward in the vacuum chamber for vacuuming and heating, so that the air in the heat retention chamber 4 can be Fully extracted, the holding chamber 4 achieves complete vacuum and improves the quality of the insulation.
优选地，所述步骤B中，在保温容器的外壳2的侧壁的内侧的拐角位置固定所述辅助件1，所述低温密封层11朝向所述外壳2的侧壁，从而所述低温密封层11固定高温覆盖层12和外壳2之间；Preferably, in the step B, the auxiliary member 1 is fixed at a corner position inside the side wall of the outer casing 2 of the heat insulating container, the low temperature sealing layer 11 facing the side wall of the outer casing 2, so that the low temperature seal The layer 11 is fixed between the high temperature cover layer 12 and the outer casing 2;
所述步骤E中，将所述外壳2的侧壁的焊接有所述辅助件1的一侧朝下地放置在抽真空室内中。In the step E, the side wall of the outer casing 2 to which the auxiliary member 1 is welded is placed in the vacuum chamber.
可将辅助件1固定于所述外壳2的侧壁的内侧的拐角位置，抽真空时将所述保温容器侧放，即所述外壳2的侧壁的焊接有所述辅助件1的一侧朝下地放入抽真空室内进行抽真空并加热，从而保温腔4内的空气可完全抽出来，保温腔4实现完全真空，提高保温质量。The auxiliary member 1 may be fixed to a corner position of the inner side of the side wall of the outer casing 2, and the heat insulating container may be placed sideways when vacuuming, that is, the side wall of the outer casing 2 is welded with the side of the auxiliary member 1. The vacuum chamber is placed downwards for vacuuming and heating, so that the air in the heat preservation chamber 4 can be completely extracted, and the heat preservation chamber 4 realizes complete vacuum to improve the heat preservation quality.
优选地，所述步骤B中，在保温容器的外壳2的顶部的内侧的拐角位置固定所述辅助件1，所述低温密封层11朝向所述外壳2的顶部，从而所述低温密封层11固定高温覆盖层12和外壳2之间；Preferably, in the step B, the auxiliary member 1 is fixed at a corner position on the inner side of the top of the outer casing 2 of the heat insulating container, the low temperature sealing layer 11 facing the top of the outer casing 2, so that the low temperature sealing layer 11 Fixing between the high temperature cover layer 12 and the outer casing 2;
所述步骤E中，将所述外壳2的顶部朝下地放置在抽真空室内中。In the step E, the top of the outer casing 2 is placed face down in the evacuation chamber.
可将辅助件1固定于所述外壳2的顶部的内侧的拐角位置，抽真空时将所 述保温容器顶部朝下地放入抽真空室内进行抽真空并加热，从而保温腔4内的空气可完全抽出来，保温腔4实现完全真空，提高保温质量。The auxiliary member 1 can be fixed at a corner position of the inner side of the top of the outer casing 2, and when the vacuum is evacuated, the top of the heat preservation container is placed downward in the vacuum chamber to be evacuated and heated, so that the air in the heat retention chamber 4 can be completely completed. After pumping out, the holding chamber 4 achieves complete vacuum and improves the quality of the insulation.
优选地，使用所述气密性好的保温容器制备方法制备的保温容器：Preferably, the insulated container prepared by using the airtight and good insulated container preparation method:
所述保温容器是由金属制成的外壳2和内壳3之间抽真空形成的保温容器，所述外壳2和内壳3之间形成密封的真空的保温腔4；The insulated container is an insulated container formed by vacuuming between the outer casing 2 and the inner casing 3, and a sealed vacuum insulation chamber 4 is formed between the outer casing 2 and the inner casing 3;
所述外壳2的内侧的拐角位置固定有所述辅助件1，所述低温密封层11朝向所述外壳2，从而所述低温密封层11固定在所述高温覆盖层12和外壳2之间；The auxiliary member 1 is fixed at a corner position of the inner side of the outer casing 2, and the low temperature sealing layer 11 faces the outer casing 2, so that the low temperature sealing layer 11 is fixed between the high temperature covering layer 12 and the outer casing 2;
所述外壳2设有所述排气孔13，所述辅助件1覆盖所述排气孔13，并且所述低温密封层11密封所述排气孔13。The outer casing 2 is provided with the exhaust hole 13, the auxiliary member 1 covers the exhaust hole 13, and the low temperature sealing layer 11 seals the exhaust hole 13.
在所述保温容器的外壳2的内侧的拐角位置固定所述辅助件1，固定方式可为焊接、粘附等，所述辅助件1由低温密封层11和高温覆盖层12焊接而成。The auxiliary member 1 is fixed at a corner position of the inner side of the outer casing 2 of the heat insulating container, and the fixing member 1 may be welded, adhered, or the like. The auxiliary member 1 is welded by the low temperature sealing layer 11 and the high temperature covering layer 12.
加热抽真空前，贯穿所述辅助件1和外壳2钻出排气孔13；加热抽真空时，将所述保温容器的焊接有所述辅助件1的一侧朝下地进行抽真空，使所述保温腔4抽完真空后，逐渐加热至所述熔融温度，低温密封层11熔化并在重力作用下在高温覆盖层12和外壳2的拐角位置之间发生流动，从而熔化的低温密封层11对排气孔13进行封堵，再冷却至常温使得低温密封层11固化，从而制得真空保温的保温容器。所述保温容器可为真空保温瓶、真空保温杯和真空保温盒等，可采用高真空钎焊设备进行抽真空。Before the heating and vacuuming, the vent hole 13 is drilled through the auxiliary member 1 and the outer casing 2; when the vacuum is heated, the side of the heat insulating container to which the auxiliary member 1 is welded is vacuumed downward, so that After the vacuum chamber 4 is evacuated, it is gradually heated to the melting temperature, and the low temperature sealing layer 11 is melted and flows between the high temperature coating layer 12 and the corner position of the outer casing 2 under the action of gravity, thereby melting the low temperature sealing layer 11 The vent hole 13 is sealed, and then cooled to a normal temperature to cure the low temperature sealing layer 11, thereby producing a vacuum insulated heat preservation container. The heat preservation container may be a vacuum thermos flask, a vacuum heat preservation cup and a vacuum heat preservation box, etc., and vacuuming may be performed by using a high vacuum brazing device.
保温容器密封效果的短板是低温密封层11在熔化过程中的相变导致的不可预料的潜在裂纹，一旦产生裂纹，保温腔4会隐秘地逐渐失去真空效果。本发明在低温密封层11的外侧另外设置了在所述熔融温度不产生相变的高温覆盖层12，将整个低温密封层11均密封在外壳2的内侧的拐角位置和高温覆盖层12之间，从而在重力作用下所述高温覆盖层12始终和低温密封层11紧贴，避免 裂纹的产生；The short plate of the sealing effect of the heat insulating container is an unpredictable potential crack caused by the phase change of the low temperature sealing layer 11 during the melting process, and once the crack is generated, the heat insulating cavity 4 will gradually lose the vacuum effect in a hidden manner. The present invention additionally provides a high temperature cover layer 12 which does not undergo a phase change at the melting temperature on the outer side of the low temperature sealing layer 11, and seals the entire low temperature sealing layer 11 between the corner position of the inner side of the outer casing 2 and the high temperature cover layer 12. Therefore, the high temperature cover layer 12 is always in close contact with the low temperature sealing layer 11 under the action of gravity to avoid the generation of cracks;
而且加工步骤少，仅需将辅助件1固定在外壳2的内侧的拐角位置，即可避免低温密封层11在熔化过程中与高温覆盖层12分离，无需高温覆盖层12的边沿和外壳2焊接；Moreover, the processing steps are small, and only the auxiliary member 1 needs to be fixed at the corner position of the inner side of the outer casing 2, so that the low-temperature sealing layer 11 can be prevented from being separated from the high-temperature covering layer 12 during the melting process, and the edge of the high-temperature covering layer 12 and the outer casing 2 are not required to be welded. ;
所述外壳2和高温覆盖层12上都开设有所述排气孔13，所述低温密封层11的相变会封住两个排气孔13，这两个抽气孔13有任何一个被封住都可以达到彻底真空密封效果，从而保温容器的真空泄漏概率大大降低，成品率更高，产品更为耐用；The venting opening 13 is defined in the outer casing 2 and the high-temperature covering layer 12. The phase change of the low-temperature sealing layer 11 seals the two venting holes 13, and any one of the two venting holes 13 is sealed. The vacuum sealing effect can be achieved by living, so that the vacuum leakage probability of the heat preservation container is greatly reduced, the yield is higher, and the product is more durable;
由于辅助件1设置于外壳2的内侧(即保温腔4内)，制成的所述保温容器从外部看不到辅助件1的位置，更为美观；而且设置于内部的辅助件1在碰撞中不直接触碰，不容易碰掉，因此不容易因碰撞造成的真空泄漏。Since the auxiliary member 1 is disposed on the inner side of the outer casing 2 (i.e., inside the heat retention chamber 4), the insulated container made is invisible from the outside, and is more beautiful; and the auxiliary member 1 disposed inside is collided. It is not easy to touch in the middle, so it is not easy to be knocked off, so it is not easy to leak due to collision.
优选地，如图1所示，所述辅助件1设置于所述保温腔4，所述辅助件1固定于外壳2的底部的边沿，并且所述低温密封层11和外壳2的内表面紧贴；所述辅助件1覆盖所述排气孔13，所述低温密封层11密封所述排气孔13。Preferably, as shown in FIG. 1, the auxiliary member 1 is disposed in the heat retention chamber 4, the auxiliary member 1 is fixed to the edge of the bottom of the outer casing 2, and the inner surface of the low temperature sealing layer 11 and the outer casing 2 is tight. The auxiliary member 1 covers the vent hole 13 , and the low temperature sealing layer 11 seals the vent hole 13 .
如图2所示，辅助件1可通过焊接或粘结的方式固定于外壳2的底部的边沿，所述外壳2的底部的边沿为拐角位置，并且所述低温密封层11和外壳2的内表面紧贴，低温密封层11设置在高温覆盖层12和外壳2的底部的边沿之间，加热抽真空前，贯穿所述辅助件1和外壳2钻出排气孔13，可沿着外壳2底部的边沿设置多个排气孔13，提高抽真空速率和质量。加热抽真空时，将所述保温容器正放即所述外壳2的底部朝下地放入高真空钎焊设备中进行抽真空并加热，保温腔4内的空气在重力作用和真空环境下经排气孔13从保温腔4内完全抽出来，保温腔4实现完全真空；并当加热温度达到所述熔融温度时，低温密封层11熔化流动，从而熔化的低温密封层11对外壳2的排气孔13进行封堵， 再冷却至常温使得低温密封层11固化，从而制得真空保温的所述保温容器。As shown in FIG. 2, the auxiliary member 1 may be fixed to the edge of the bottom of the outer casing 2 by welding or bonding, the edge of the bottom of the outer casing 2 being a corner position, and the inside of the low temperature sealing layer 11 and the outer casing 2 The surface is in close contact with the low temperature sealing layer 11 disposed between the edge of the high temperature cover layer 12 and the bottom of the outer casing 2. Before the vacuum is applied, the exhaust hole 13 is drilled through the auxiliary member 1 and the outer casing 2, along the outer casing 2. A plurality of vent holes 13 are provided at the edges of the bottom to increase the evacuation rate and quality. When the vacuum is heated, the heat-insulating container is placed in the high-vacuum brazing apparatus with the bottom of the outer casing 2 facing downward to be evacuated and heated, and the air in the heat-insulating chamber 4 is arranged under the action of gravity and vacuum. The air hole 13 is completely withdrawn from the holding chamber 4, and the heat insulating chamber 4 realizes a complete vacuum; and when the heating temperature reaches the melting temperature, the low temperature sealing layer 11 melts and flows, so that the molten low temperature sealing layer 11 exhausts the outer casing 2. The hole 13 is sealed, and then cooled to a normal temperature so that the low-temperature sealing layer 11 is solidified, thereby producing the vacuum insulated container.
优选地，如图3所示，所述外壳2的底部设有排气凹槽21，所述排气凹槽21从内向外突出，所述外壳2的排气孔13设置于所述排气凹槽21；所述辅助件1固定于所述排气凹槽21内，所述低温密封层11密封所述排气孔13。Preferably, as shown in FIG. 3, the bottom of the outer casing 2 is provided with an exhaust groove 21 protruding from the inner side, and the exhaust hole 13 of the outer casing 2 is disposed at the exhaust a groove 21; the auxiliary member 1 is fixed in the exhaust groove 21, and the low temperature sealing layer 11 seals the exhaust hole 13.
如图4所示，辅助件1可通过卡接或焊接的方式固定于所述排气凹槽21，从而低温密封层11包裹在高温覆盖层12和排气凹槽21之间的空腔内，加热抽真空前，贯穿所述辅助件1和外壳2钻出排气孔13；加热抽真空时，将所述保温容器正放即所述外壳2的底部朝下地放入高真空钎焊设备中进行抽真空并加热，保温腔4内的空气在重力作用和真空环境下经排气孔13从保温腔4内完全抽出来，保温腔4实现完全真空；并当加热温度达到所述熔融温度时，低温密封层11熔化，在重力作用下流动至排气凹槽21的底部，从而熔化的低温密封层11对排气凹槽21的排气孔13进行封堵，再冷却至常温使得低温密封层11固化，从而制得真空保温的所述保温容器。As shown in FIG. 4, the auxiliary member 1 can be fixed to the exhaust groove 21 by snapping or welding, so that the low temperature sealing layer 11 is wrapped in the cavity between the high temperature cover layer 12 and the exhaust groove 21. Before the vacuum is applied, the vent hole 13 is drilled through the auxiliary member 1 and the outer casing 2; when the vacuum is heated, the heat insulating container is placed in the high vacuum brazing device with the bottom of the outer casing 2 facing downward. During the vacuuming and heating, the air in the holding chamber 4 is completely extracted from the holding chamber 4 through the vent hole 13 under the action of gravity and vacuum, and the holding chamber 4 is completely vacuumed; and when the heating temperature reaches the melting temperature When the low temperature sealing layer 11 is melted, it flows to the bottom of the exhaust groove 21 under the action of gravity, so that the molten low temperature sealing layer 11 blocks the exhaust hole 13 of the exhaust groove 21, and then cools to a normal temperature to make the low temperature. The sealing layer 11 is solidified to thereby produce the insulated container which is vacuum insulated.
优选地，如图5、图6所示，外壳2的底部设有多个表面积较小的排气凹槽21。设置多个表面积较小的排气凹槽21，既避免因表面积较大导致低温密封层11流动不均匀或厚度过小而不能将排气孔13完全密封，又在外壳2的底部钻出多个排气孔13，抽真空时保温腔4内的空气可经多个排气孔13排出，从而提高抽真空速度，并且确保空气被完全抽出，避免部分空气残留在保温腔4内，提高抽真空质量。Preferably, as shown in FIGS. 5 and 6, the bottom of the outer casing 2 is provided with a plurality of exhaust grooves 21 having a small surface area. A plurality of venting grooves 21 having a small surface area are disposed to prevent the low temperature sealing layer 11 from flowing unevenly or the thickness being too small to completely seal the venting holes 13 and to drill more at the bottom of the outer casing 2 due to a large surface area. The venting holes 13 can be exhausted through the plurality of venting holes 13 when the vacuum is evacuated, thereby increasing the vacuuming speed and ensuring that the air is completely extracted, preventing part of the air from remaining in the holding chamber 4, and improving the pumping. Vacuum quality.
优选地，如图7所示，所述辅助件1设置于所述真空保温腔4，所述外壳2的顶部设有开口22，所述开口22弯曲，所述开口22设有排气孔13，所述辅助件1固定于外壳2的开口22，所述辅助件1覆盖所述排气孔13，所述低温密封层11设置在高温覆盖层12和开口22之间，并且所述低温密封层11密封所述 排气孔13。Preferably, as shown in FIG. 7, the auxiliary member 1 is disposed in the vacuum insulation chamber 4, and the top of the outer casing 2 is provided with an opening 22, the opening 22 is curved, and the opening 22 is provided with a vent hole 13. The auxiliary member 1 is fixed to the opening 22 of the outer casing 2, the auxiliary member 1 covers the venting opening 13, the low temperature sealing layer 11 is disposed between the high temperature covering layer 12 and the opening 22, and the low temperature sealing The layer 11 seals the venting opening 13.
如图8至图10所示，辅助件1可通过焊接或粘结的方式任意固定于外壳2的顶部的开口22，辅助件1可横向固定或垂直固定于开口22的边沿或侧壁，并且所述低温密封层11和外壳2的内表面紧贴，加热抽真空前，贯穿所述辅助件1和外壳2钻出排气孔13；加热抽真空时，将所述保温容器倒放即所述外壳2的顶部朝下地放入高真空钎焊设备中进行抽真空并加热，保温腔4内的空气在重力作用和真空环境下经排气孔13从保温腔4内完全抽出来，保温腔4实现完全真空；并当加热温度达到熔融温度时，低温密封层11熔化流动，从而熔化的低温密封层11对外壳2的排气孔13进行封堵，再冷却至常温使得低温密封层11固化，从而制得真空保温的所述保温容器。As shown in FIGS. 8 to 10, the auxiliary member 1 can be arbitrarily fixed to the opening 22 at the top of the outer casing 2 by welding or bonding, and the auxiliary member 1 can be laterally fixed or vertically fixed to the edge or side wall of the opening 22, and The low temperature sealing layer 11 and the inner surface of the outer casing 2 are in close contact with each other. Before the heating and vacuuming, the venting holes 13 are drilled through the auxiliary member 1 and the outer casing 2; when the vacuum is heated, the insulated container is placed upside down. The top of the outer casing 2 is placed in a high-vacuum brazing apparatus for vacuuming and heating, and the air in the holding chamber 4 is completely extracted from the holding chamber 4 through the vent hole 13 under the action of gravity and vacuum. 4 achieving a complete vacuum; and when the heating temperature reaches the melting temperature, the low temperature sealing layer 11 melts and flows, so that the molten low temperature sealing layer 11 blocks the vent hole 13 of the outer casing 2, and then cools to a normal temperature so that the low temperature sealing layer 11 is solidified. Thereby, the insulated container which is vacuum insulated is obtained.
优选地，如图12所示，所述外壳2的侧壁设有排气凹槽21，所述排气凹槽21从内向外突出，所述外壳2的排气孔13设置于所述排气凹槽21；所述辅助件1固定于所述排气凹槽21，所述辅助件1的高温覆盖层12从所述外壳2的内侧覆盖整个所述排气凹槽21，所述低温密封层11密封所述排气孔13。Preferably, as shown in FIG. 12, the side wall of the outer casing 2 is provided with an exhaust groove 21, and the exhaust groove 21 protrudes from the inside to the outside, and the exhaust hole 13 of the outer casing 2 is disposed in the row a gas groove 21; the auxiliary member 1 is fixed to the exhaust groove 21, and the high temperature cover layer 12 of the auxiliary member 1 covers the entire exhaust groove 21 from the inner side of the outer casing 2, the low temperature The sealing layer 11 seals the vent hole 13.
辅助件1可通过焊接或粘结的方式固定于所述排气凹槽21，从而低温密封层11包裹在高温覆盖层12和排气凹槽21之间的空腔内，加热抽真空前，贯穿所述辅助件1和外壳2钻出排气孔13，如图11所示；加热抽真空时，将外壳2的侧壁的焊接有辅助件1的一侧朝下地放入高真空钎焊设备中进行抽真空并加热，保温腔4内的空气在重力作用和真空环境下经排气孔13从保温腔4内完全抽出来，保温腔4实现完全真空；并当加热温度达到熔融温度时，低温密封层11熔化，在重力作用下流动在高温覆盖层12和外壳2之间发生流动，从而熔化的低温密封层11对排气凹槽21的排气孔13进行封堵，再冷却至常温使得低温密封层11固化，从而制得真空保温的所述保温容器。The auxiliary member 1 may be fixed to the exhaust groove 21 by welding or bonding, so that the low temperature sealing layer 11 is wrapped in the cavity between the high temperature cover layer 12 and the exhaust groove 21, before heating and vacuuming, The venting opening 13 is drilled through the auxiliary member 1 and the outer casing 2, as shown in FIG. 11; when the vacuum is heated, the side wall of the outer casing 2 to which the auxiliary member 1 is welded is placed in a high vacuum brazing direction downward. The equipment is vacuumed and heated, and the air in the holding chamber 4 is completely extracted from the holding chamber 4 through the vent hole 13 under the action of gravity and vacuum, and the holding chamber 4 is completely vacuumed; and when the heating temperature reaches the melting temperature The low temperature sealing layer 11 is melted, and flows under the action of gravity to flow between the high temperature coating layer 12 and the outer casing 2, so that the molten low temperature sealing layer 11 blocks the exhaust hole 13 of the exhaust groove 21, and then cools to The low temperature sealing layer 11 is solidified at a normal temperature to thereby obtain the vacuum insulated container.
优选地，如图11所示，所述外壳2的侧壁的两侧均设有所述排气凹槽21。外壳2的侧壁两侧的排气凹槽21相对设置，从而抽真空时将保温容器侧放，即外壳2的侧壁的焊接有辅助件1的其中一侧朝下地放入高真空钎焊设备中进行抽真空并加热，位于下方的空气从朝下的排气凹槽21的排气孔13抽出，位于上方的空气从朝上的排气凹槽21的排气孔13抽出，从而确保保温容器侧放时位于侧壁的空气完全抽出，避免部分空气残留在保温腔4内，提高抽真空质量。并当加热温度达到熔融温度的熔点时，低温密封层11熔化，在重力作用下，位于下方的排气凹槽21中的低温密封层11对排气凹槽21的排气孔13密封，位于上方的排气凹槽21中的低温密封层11对高温覆盖层12的排气孔13密封，再冷却至常温使得低温密封层11固化，从而制得真空保温的所述保温容器。Preferably, as shown in FIG. 11, the exhaust groove 21 is provided on both sides of the side wall of the outer casing 2. The exhaust grooves 21 on both sides of the side wall of the outer casing 2 are oppositely disposed, so that the heat insulating container is placed sideways when vacuuming, that is, the side wall of the outer casing 2 is welded with the auxiliary member 1 placed side down to the high vacuum brazing The apparatus is evacuated and heated, and the air located below is drawn from the exhaust hole 13 of the downward exhaust groove 21, and the air located above is withdrawn from the exhaust hole 13 of the upward exhaust groove 21, thereby ensuring When the heat preservation container is placed sideways, the air on the side wall is completely extracted, so that part of the air remains in the heat preservation chamber 4, and the vacuum quality is improved. And when the heating temperature reaches the melting point of the melting temperature, the low temperature sealing layer 11 is melted, and under the action of gravity, the low temperature sealing layer 11 located in the lower exhaust groove 21 seals the vent hole 13 of the exhaust groove 21, located at The low temperature sealing layer 11 in the upper exhaust groove 21 seals the vent hole 13 of the high temperature cover layer 12, and is cooled to a normal temperature so that the low temperature sealing layer 11 is solidified, thereby producing the vacuum insulated container.
优选地，如图13、14所示，所述外壳2的侧壁的排气凹槽21从内向外突出，并且所述排气凹槽21的中部向内凹陷，边沿向外突出，所述外壳2的底部的排气孔13靠近所述排气凹槽21的边沿设置；所述辅助件1固定于所述排气凹槽21，所述辅助件1的高温覆盖层12覆盖整个所述排气凹槽21，所述低温密封层11密封所述排气孔13。所述外壳2的侧壁的排气凹槽21的中部向内凹陷，边沿向外突出，抽真空时将所述外壳2的侧壁的焊接有辅助件1的一侧朝下，从而抽完真空后熔化的低温密封层11，更容易在重力作用下从排气凹槽21的中部向边沿流动，将排气凹槽21上的排气孔13进行封堵，封堵更为可靠。Preferably, as shown in FIGS. 13 and 14, the exhaust groove 21 of the side wall of the outer casing 2 protrudes from the inside to the outside, and the central portion of the exhaust groove 21 is recessed inward, and the rim protrudes outward. a venting opening 13 at the bottom of the outer casing 2 is disposed adjacent to the rim of the venting groove 21; the auxiliary member 1 is fixed to the venting groove 21, and the high temperature covering layer 12 of the auxiliary member 1 covers the entire The vent groove 21, the low temperature sealing layer 11 seals the vent hole 13. The central portion of the exhaust groove 21 of the side wall of the outer casing 2 is recessed inwardly, and the rim protrudes outward. When the vacuum is applied, the side of the side wall of the outer casing 2 to which the auxiliary member 1 is welded is directed downward, thereby exhausting The low-temperature sealing layer 11 which is melted after the vacuum is more likely to flow from the middle to the edge of the exhaust groove 21 by gravity, and the exhaust hole 13 on the exhaust groove 21 is blocked, and the sealing is more reliable.
以上结合具体实施例描述了本发明的技术原理。这些描述只是为了解释本发明的原理，而不能以任何方式解释为对本发明保护范围的限制。基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本发明的其它具体实施方式，这些方式都将落入本发明的保护范围之内。The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are merely illustrative of the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art can devise various other embodiments of the present invention without departing from the scope of the invention.
Claims (10)
- 一种气密性好的保温容器制备方法，所述保温容器是由金属制成的外壳和内壳之间抽真空形成的保温容器，所述外壳和内壳之间形成密封的真空的保温腔，其特征在于，包括以下步骤：The invention relates to a method for preparing a heat-tight container, wherein the heat-insulating container is a heat-insulating container formed by vacuuming between a casing and an inner casing made of metal, and a sealed vacuum insulation chamber is formed between the outer casing and the inner casing. , characterized in that it comprises the following steps:步骤A，制备辅助件，所述辅助件为低温密封层和高温覆盖层叠放起来相互焊接形成的，所述低温密封层由在熔融温度时会熔化的金属制成，所述高温覆盖层由在所述熔融温度时不会熔化的金属制成；Step A, preparing an auxiliary member which is formed by welding a low-temperature sealing layer and a high-temperature covering layer which are made of a metal which is melted at a melting temperature, and the high-temperature coating layer is formed by a metal that does not melt at the melting temperature;步骤B，在保温容器的外壳的内侧的拐角位置固定所述辅助件，并且所述低温密封层朝向所述外壳，从而所述低温密封层固定在所述高温覆盖层和外壳之间；Step B, fixing the auxiliary member at a corner position of the inner side of the outer casing of the heat insulating container, and the low temperature sealing layer faces the outer casing, so that the low temperature sealing layer is fixed between the high temperature covering layer and the outer casing;步骤C，贯穿所述辅助件和外壳钻出排气孔；Step C, drilling a vent hole through the auxiliary member and the outer casing;步骤D，将所述内壳安装在所述外壳内，从而在外壳和内壳之间形成所述保温腔；Step D, installing the inner casing in the outer casing to form the heat retention chamber between the outer casing and the inner casing;步骤E，使所述低温密封层在下，所述高温覆盖层在上，然后将所述保温容器放置在抽真空室内，所述抽真空室逐渐趋向真空状态从而通过所述排气孔将所述保温腔抽真空；Step E, placing the low temperature sealing layer under, the high temperature coating layer on, and then placing the heat preservation container in an evacuation chamber, the vacuum chamber gradually moving toward a vacuum state to pass the vent hole The vacuum chamber is evacuated;同时所述抽真空室的温度逐渐升高至所述熔融温度，所述低温密封层受热熔化而流动直至密封所述排气孔，从而制成所述保温容器。At the same time, the temperature of the evacuation chamber is gradually increased to the melting temperature, and the low temperature sealing layer is melted by heat to flow until the vent hole is sealed, thereby making the heat insulating container.
- 根据权利要求1所述的气密性好的保温容器制备方法，其特征在于：The method for preparing a gas-tight insulated container according to claim 1, wherein:所述低温密封层为熔点在200℃～1200℃的金属材料；The low temperature sealing layer is a metal material having a melting point of 200 ° C to 1200 ° C;所述高温覆盖层为钛金属或不锈钢；The high temperature cover layer is titanium metal or stainless steel;所述外壳为钛金属或不锈钢；The outer casing is titanium metal or stainless steel;所述步骤E的所述熔融温度不超过1200℃。The melting temperature of the step E does not exceed 1200 °C.
- 根据权利要求1所述的气密性好的保温容器制备方法，其特征在于：The method for preparing a gas-tight insulated container according to claim 1, wherein:所述步骤B中，在保温容器的外壳的底部的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的底部，从而所述低温密封层固定在高温覆盖层和外壳之间；In the step B, the auxiliary member is fixed at a corner position on the inner side of the bottom of the outer casing of the heat preservation container, and the low temperature sealing layer faces the bottom of the outer casing, so that the low temperature sealing layer is fixed on the high temperature cover layer and the outer casing. between;所述步骤E中，将所述外壳的底部朝下地放置在抽真空室内。In the step E, the bottom of the outer casing is placed downward in the vacuum chamber.
- 根据权利要求1所述的气密性好的保温容器制备方法，其特征在于：The method for preparing a gas-tight insulated container according to claim 1, wherein:所述步骤B中，在保温容器的外壳的侧壁的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的侧壁，从而所述低温密封层固定高温覆盖层和外壳之间；In the step B, the auxiliary member is fixed at a corner position of the inner side of the side wall of the outer casing of the heat insulating container, the low temperature sealing layer faces the side wall of the outer casing, so that the low temperature sealing layer fixes the high temperature covering layer and the outer casing between;所述步骤E中，将所述外壳的侧壁的焊接有所述辅助件的一侧朝下地放置在抽真空室内中。In the step E, the side wall of the outer casing to which the auxiliary member is welded is placed in the vacuum chamber.
- 根据权利要求1所述的气密性好的保温容器制备方法，其特征在于：The method for preparing a gas-tight insulated container according to claim 1, wherein:所述步骤B中，在保温容器的外壳的顶部的内侧的拐角位置固定所述辅助件，所述低温密封层朝向所述外壳的顶部，从而所述低温密封层固定高温覆盖层和外壳之间；In the step B, the auxiliary member is fixed at a corner position on the inner side of the top of the outer casing of the heat preservation container, the low temperature sealing layer faces the top of the outer casing, so that the low temperature sealing layer fixes between the high temperature cover layer and the outer casing ;所述步骤E中，将所述外壳的顶部朝下地放置在抽真空室内中。In the step E, the top of the outer casing is placed in the vacuum chamber.
- 使用权利要求1至5任意一项所述的气密性好的保温容器制备方法制备的保温容器，其特征在于：An insulated container prepared by the method for preparing a gas-tight insulated container according to any one of claims 1 to 5, characterized in that:所述保温容器是由金属制成的外壳和内壳之间抽真空形成的保温容器，所述外壳和内壳之间形成密封的真空的保温腔；The heat preservation container is an insulated container formed by vacuuming between an outer casing and an inner casing made of metal, and a sealed vacuum insulation chamber is formed between the outer casing and the inner casing;所述外壳的内侧的拐角位置固定有所述辅助件，所述低温密封层朝向所述外壳，从而所述低温密封层固定在所述高温覆盖层和外壳之间；The auxiliary device is fixed at a corner position of the inner side of the outer casing, and the low temperature sealing layer faces the outer casing, so that the low temperature sealing layer is fixed between the high temperature covering layer and the outer casing;所述外壳设有所述排气孔，所述辅助件覆盖所述排气孔，并且所述低温密封层密封所述排气孔。The outer casing is provided with the exhaust hole, the auxiliary member covers the exhaust hole, and the low temperature sealing layer seals the exhaust hole.
- 根据权利要求6所述的保温容器，其特征在于：The insulated container according to claim 6, wherein:所述辅助件设置于所述保温腔，所述辅助件固定于外壳的底部的边沿，并且所述低温密封层和外壳的内表面紧贴；所述辅助件覆盖所述排气孔，所述低温密封层密封所述排气孔。The auxiliary member is disposed in the heat retention chamber, the auxiliary member is fixed to a rim of the bottom of the outer casing, and the low temperature sealing layer and the inner surface of the outer casing are in close contact; the auxiliary member covers the vent hole, A low temperature sealing layer seals the vent.
- 根据权利要求7所述的保温容器，其特征在于：The insulated container according to claim 7, wherein:所述外壳的底部设有排气凹槽，所述排气凹槽从内向外突出，所述外壳的排气孔设置于所述排气凹槽；The bottom of the outer casing is provided with an exhaust groove, the exhaust groove protrudes from the inner side, and the exhaust hole of the outer casing is disposed in the exhaust groove;所述辅助件固定于所述排气凹槽内，所述低温密封层密封所述排气孔。The auxiliary member is fixed in the exhaust groove, and the low temperature sealing layer seals the exhaust hole.
- 根据权利要求6所述的保温容器，其特征在于：The insulated container according to claim 6, wherein:所述辅助件设置于所述真空保温腔，所述外壳的顶部设有开口，所述开口弯曲，所述开口设有排气孔，所述辅助件固定于外壳的开口，所述辅助件覆盖所述排气孔，所述低温密封层设置在高温覆盖层和开口之间，并且所述低温密封层密封所述排气孔。The auxiliary member is disposed in the vacuum heat preservation chamber, the top of the outer casing is provided with an opening, the opening is curved, the opening is provided with a venting hole, the auxiliary member is fixed to the opening of the outer casing, and the auxiliary member covers The vent hole, the low temperature sealing layer is disposed between the high temperature cover layer and the opening, and the low temperature sealing layer seals the vent hole.
- 根据权利要求6所述的保温容器，其特征在于：The insulated container according to claim 6, wherein:所述外壳的侧壁设有排气凹槽，所述排气凹槽从内向外突出，所述外壳的排气孔设置于所述排气凹槽；The side wall of the outer casing is provided with an exhaust groove, the exhaust groove protrudes from the inner side, and the exhaust hole of the outer casing is disposed in the exhaust groove;所述辅助件固定于所述排气凹槽，所述辅助件的高温覆盖层从所述外壳的内侧覆盖整个所述排气凹槽，所述低温密封层密封所述排气孔。The auxiliary member is fixed to the exhaust groove, and a high temperature cover layer of the auxiliary member covers the entire exhaust groove from an inner side of the outer casing, and the low temperature sealing layer seals the exhaust hole.
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| CN201711482309.9 | 2017-12-29 | ||
| CN201711482309.9A CN108216943B (en) | 2017-12-29 | 2017-12-29 | Preparation method of heat-insulating container with good air tightness and heat-insulating container prepared by same |
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| PCT/CN2018/078674 WO2019127908A1 (en) | 2017-12-29 | 2018-03-12 | Method for preparing airtight and insulated container, and insulated container prepared by same |
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| CN107380742A (en) * | 2017-07-31 | 2017-11-24 | 白明军 | A kind of vacuum utensil structure of the outer titanium of interior titanium |
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| JP3638215B2 (en) * | 1998-08-10 | 2005-04-13 | 象印マホービン株式会社 | Vacuum structure sealing method |
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| CN107319960A (en) * | 2017-07-01 | 2017-11-07 | 佛山市铠斯钛科技有限公司 | The method and its Vacuum insulation bottle of a kind of Vacuum insulation bottle for preparing long lifespan |
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| JPH10295560A (en) * | 1997-04-30 | 1998-11-10 | Zojirushi Corp | Method for sealing vacuum structure body and its structure |
| JP2001061677A (en) * | 1999-08-25 | 2001-03-13 | Zojirushi Corp | Method for sealing vacuum structure |
| JP2009268647A (en) * | 2008-05-02 | 2009-11-19 | Thermos Kk | Method for sealing vacuum structure |
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