CN111227592B - Titanium metal vacuum cup, composite metal ring for manufacturing titanium metal vacuum cup and processing method of composite metal ring - Google Patents
Titanium metal vacuum cup, composite metal ring for manufacturing titanium metal vacuum cup and processing method of composite metal ring Download PDFInfo
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- CN111227592B CN111227592B CN202010115193.0A CN202010115193A CN111227592B CN 111227592 B CN111227592 B CN 111227592B CN 202010115193 A CN202010115193 A CN 202010115193A CN 111227592 B CN111227592 B CN 111227592B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
- A47G19/2255—Details related to the connection between the liquid containing part and the supporting part
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Abstract
The invention discloses a titanium metal vacuum cup, a composite metal ring for manufacturing and a processing method thereof, wherein the composite metal ring comprises a titanium metal ring and a stainless steel ring, and the titanium metal ring and the stainless steel ring are connected through an end brazing combination body formed by brazing; the processing method comprises the following steps: processing a titanium metal ring and a stainless steel ring, deoiling, butting through a spigot, brazing the end part, and vacuumizing to prepare the titanium metal vacuum cup. The invention can save the valuable titanium material, improve the quality of the titanium vacuum cup, has simple processing, high production efficiency and further reduced cost, and is suitable for batch production.
Description
Technical Field
The invention relates to a titanium metal vacuum cup, a composite metal ring for manufacturing the titanium metal vacuum cup and a processing method of the composite metal ring.
Background
The existing metal vacuum cup is mainly formed by welding a stainless steel inner container and a stainless steel shell, and a vacuum layer is arranged between the stainless steel inner container and the stainless steel shell. However, since the stainless steel inner container has a risk of heavy metal precipitation, it is more desirable to replace stainless steel with titanium, which has better corrosion resistance and antibacterial property and does not precipitate heavy metals.
However, the price of titanium metal is high, so that the vacuum cup made of titanium metal not only consumes more titanium metal, but also has high price which is not easily accepted by the market widely.
Chinese patent ZL201310692540.6 discloses a titanium alloy composite vacuum cup, and Chinese patent ZL201420047402.2 discloses a titanium alloy inner container vacuum cup, wherein the two vacuum cups both use titanium metal as an inner container and stainless steel as an outer shell, so that the use amount of the titanium metal is greatly reduced, and the vacuum cup is a better technical scheme. However, the inner container and the shell of the two patents are connected together in a complex inserting and fastening mechanical sealing mode or structure, and have adverse effects on the reliability and the service life of the vacuum cup under the conditions of collision, falling and the like; in addition, the titanium metal inner container is directly and tightly contacted with the stainless steel sealing body shell to form heat conduction, so that the heat insulation effect is reduced.
Chinese patent ZL201820780404.0 discloses a double-layer vacuum vessel compounded by pure titanium and stainless steel, which comprises a pure titanium inner container 1 and a stainless steel outer container 2, wherein a vacuum layer 3 is arranged between the pure titanium inner container 1 and the stainless steel outer container 2, a titanium ring 4 is arranged on the outer ring of the opening of the pure titanium inner container 1, a stainless steel ring 5 is arranged on the inner ring of the opening of the stainless steel outer container 2, the contact surface of the titanium ring 4 and the stainless steel ring 5 is fixed in a sealing mode through brazing, and the brazing adopts high-temperature paste-shaped solder. The brazing described in this patent has two structures in common: the first brazing structure is that the lower part of the titanium ring 4 is provided with an annular groove 6, the upper part of the stainless steel ring 5 is provided with an annular bulge 7, and the annular bulge 7 can be embedded into the annular groove 6 and attached to the annular groove; the second brazing structure is that the titanium ring 4 is positioned above the stainless steel ring 5, the bottom end of the titanium ring 4 is provided with an annular sealing plate 8 which is turned outwards, and the annular sealing plate 8 and the top end surface of the stainless steel ring 5 are sealed and fixed in a brazing mode. Compared with the prior art, the technical scheme has the following advantages: firstly, the inner container is made of pure titanium materials, and the outer container is made of stainless steel materials, so that the material cost is reduced; secondly, the outer ring of the opening of the pure titanium inner container is provided with a titanium ring, the inner ring of the opening of the stainless steel outer container is provided with a stainless steel ring, and the contact surface of the titanium ring and the stainless steel ring is sealed and fixed in a brazing mode, so that the stainless steel and the pure titanium form a metallurgical interface, the problems of pseudo bonding and weld bead gap are avoided, the bonding strength is higher than that of a mechanical bonding mode (such as screw locking, gluing and riveting), the bonding strength of the pure titanium and the stainless steel can be effectively improved, and the equipment cost can be reduced. The patent solves the health and safety problem of drinking water, reduces the cost of the vacuum cup, and is a better technical scheme. However, the two brazing structures of the vacuum cup liner and the vacuum cup shell are relatively thin (the wall thickness is usually about 0.3 mm, and the wall thickness of the lightweight vacuum cup is 0.08-0.12 mm), so that the following defects exist in practical application:
firstly, the realization difficulty is large: the thickness of the cup mouth of the vacuum cup cannot be too thick, so that the wall thickness of the titanium ring 4 and the stainless steel ring 5 is determined to be thinner, no matter the first brazing structure or the second brazing structure is adopted, in the melting process of brazing, the laminated brazing mode of the first brazing structure and the second brazing structure often has defects such as local penetration, thin fusion and the like, and therefore the bonding strength and the air tightness are influenced; in order to increase the brazing strength, the technical scheme of the patent can only passively adopt the combination strength taught by the patent that the combination strength is higher than that of a mechanical combination mode (such as screw locking, gluing and riveting) so as to improve the combination strength of pure titanium and stainless steel;
secondly, the thickness of the cup mouth is increased: in order to overcome the defects of local penetration, thin fusion and the like and improve the brazing quality, the wall thicknesses of the titanium ring 4 and the stainless steel ring 5 can be increased, so that the thickness of the cup mouth of the vacuum cup is increased, and particularly in the first brazing structure, the thickness of the cup mouth is equal to the thickness of a pure titanium inner container 1, the thickness of a stainless steel outer container 2, the thickness of the titanium ring 4 and the thickness of the stainless steel ring 5, so that the weight and the integral volume of the cup body are increased, the material is wasted, and the cost is increased;
thirdly, the titanium ring 4 and the stainless steel ring 5 are in a stacked brazing mode, the same size is achieved, and the using amount of the expensive titanium ring 4 is increased;
therefore, the technical scheme of the patent still has the unstable problem of brazing quality on the mass production of titanium metal thermos cups, still has the rim of a cup thick, the weight is heavier, the volume is great, cost is higher scheduling problem relatively in popularization and application.
Disclosure of Invention
The invention aims to provide a titanium metal vacuum cup, a composite metal ring for manufacturing and a processing method thereof, which can save precious titanium metal materials, improve the quality of the titanium metal vacuum cup, have simple processing, high production efficiency and further lower cost and are suitable for batch production.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a composite metal circle for making titanium metal thermos cup, including be used for with the titanium metal inner bag welded titanium metal circle of thermos cup for with the stainless steel shell welded stainless steel ring of thermos cup, the titanium metal circle passes through the tang structure with stainless steel ring and docks, the tang structure includes: and brazing materials are filled between the end ring surface of the titanium metal ring and the bottom ring surface of the outer spigot, and the brazing materials form an end brazing combination body through brazing.
The brazing material is a brazing material ring which is sleeved on the convex ring at the inner side of the outer spigot.
The brazing material is brazing solder paste which is evenly smeared on the bottom ring surface of the outer spigot.
A processing method of a composite metal ring for manufacturing a titanium metal vacuum cup comprises the following steps:
the method comprises the following steps: taking a titanium tube with the inner diameter smaller than the outer diameter of the cup opening of the titanium metal liner and the outer diameter larger than the outer diameter of the cup opening of the stainless steel shell, and processing the titanium tube into a titanium metal ring by adopting an instrument lathe;
step two: taking a stainless steel pipe with the inner diameter smaller than that of the titanium metal ring and the outer diameter larger than that of the cup opening of the stainless steel shell, machining the stainless steel pipe into stainless steel rings by adopting an instrument lathe, wherein the number of the stainless steel rings is twice that of the titanium metal ring, and an outer spigot matched with the port of the titanium metal ring is lathed at one end of each stainless steel ring;
step three: deoiling the titanium metal ring and the stainless steel ring;
step four: butting one end of a titanium metal ring to the outer spigot of one stainless steel ring, butting the other end of the titanium metal ring to the outer spigot of the other stainless steel ring, and clamping brazing materials between end ring surfaces at two ends of the titanium metal ring and a bottom ring surface of the corresponding outer spigot;
step five: carrying out vacuum brazing in a vacuum furnace to enable the brazing material to form an end brazing combination body for connecting the titanium metal ring and the stainless steel rings, wherein the titanium metal ring and the stainless steel rings at two ends form a double-composite metal ring with an integral structure through the corresponding end brazing combination bodies;
step six: and cutting the double composite metal rings into two composite metal rings from the middle by an instrument vehicle.
The inner diameter of the composite metal ring is larger than or equal to the outer diameter of the cup mouth of the titanium metal inner container through an instrument vehicle, the outer diameter of the composite metal ring is equal to the outer diameter of the upper port of the stainless steel shell, a seam allowance A matched with the upper port of the stainless steel shell is arranged at the middle lower part of the outer side of the stainless steel ring through the instrument vehicle, and the end ring surface of the upper port of the stainless steel shell is welded with the stainless steel ring at the butt joint of the seam allowance A; the outer diameter of a titanium metal ring on the end part brazing combination body is smaller than that of a stainless steel ring through an instrument vehicle, and the inner side of the titanium metal ring is welded with the outer side of the upper port of the titanium metal inner container; and a vacuum layer is formed between the titanium metal inner container and the stainless steel shell through a tailless vacuumizing process at the bottom of the stainless steel shell.
The brazing material is a brazing material ring or brazing soldering paste.
A processing method of a composite metal ring for manufacturing a titanium metal vacuum cup is characterized by comprising the following steps:
the method comprises the following steps: taking a titanium pipe matched with the cup mouth of the titanium metal liner of the vacuum cup, and machining to prepare a titanium metal ring;
step two: taking a stainless steel pipe matched with the cup mouth of a stainless steel shell of the vacuum cup, and cutting to manufacture a stainless steel ring, wherein an outer spigot matched with the port of the titanium metal ring is cut at one end of the stainless steel ring;
step three: deoiling the titanium metal ring and the stainless steel ring;
step four: butting one end of the titanium metal ring on the outer spigot of the stainless steel ring, and clamping brazing materials between the end ring surface of the titanium metal ring and the bottom ring surface of the outer spigot;
step five: and carrying out vacuum brazing in a vacuum furnace to enable the brazing material to form an end brazing combination body for connecting the titanium metal ring and the stainless steel ring, wherein the titanium metal ring and the stainless steel ring form a composite metal ring with an integral structure through the end brazing combination body.
The titanium metal ring on the upper part of the composite metal ring is welded with the cup opening of the titanium metal inner container, the stainless steel ring on the lower part of the composite metal ring is welded with the cup opening of the stainless steel shell, and the titanium metal inner container and the stainless steel shell form a vacuum layer through a tailless vacuumizing process at the bottom of the stainless steel shell.
The brazing material is a brazing material ring or brazing soldering paste; the cutting adopts turning or grinding of an instrument lathe.
A titanium metal vacuum cup made of a composite metal ring.
Compared with the prior art, the invention has the beneficial effects that: by adopting the technical scheme, the titanium metal ring is butted with the stainless steel ring through the seam allowance structure, the seam allowance structure comprises an outer seam allowance arranged at the port of the stainless steel ring, brazing materials are filled between the end ring surface of the titanium metal ring and the bottom ring surface of the outer seam allowance, and the brazing materials form an end brazing combination body through brazing.
The further beneficial effects are that: the brazing material is the brazing material circle, and this brazing material snare is located on the inboard bulge loop of outer tang, or the brazing material is the brazing solder paste, the brazing solder paste evenly scribbles on the end anchor ring of outer tang, and this kind of structure not only can fix a position the titanium metal circle, and the inboard bulge loop of outer tang can also fix brazing solder paste or brazing material circle, further improves the brazed material loading efficiency of borer tip, and when brazing solder paste or brazing material circle melt, the inboard bulge loop is equivalent to one and holds in the palm the end, can also prevent that molten brazing filler metal from revealing to the inboard to further promote the quality of tip brazing.
The first processing method of the invention not only can ensure the realization of the end brazing of the titanium metal ring and the stainless steel ring, and realize the lightweight cup mouth through the size finish machining, but also can process two composite metal rings at one time, has high production efficiency and is more suitable for batch production.
Drawings
FIG. 1 is a schematic structural view of a composite metal ring of the present invention;
FIG. 2 is a schematic structural view of the titanium eyelet of FIG. 1;
FIG. 3 is a schematic structural diagram of the stainless steel ring of FIG. 1;
FIG. 4 is a schematic structural view of a brazing ring used in FIG. 1;
FIG. 5 is a schematic structural view of an optimized composite metal ring;
FIG. 6 is a titanium metal vacuum cup using the composite metal ring of FIG. 5;
FIG. 7 is an enlarged view of the L-section of FIG. 6;
fig. 8 is a schematic structural view of a double composite metal ring.
Detailed Description
In order to make the technical solution of the present invention clearer, the present invention will be described in detail below with reference to fig. 1 to 8. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
The invention relates to a composite metal ring for manufacturing a titanium metal vacuum cup, which comprises a titanium metal ring 2 welded with a titanium metal liner 1 of the vacuum cup and a stainless steel ring 4 welded with a stainless steel shell 3 of the vacuum cup, wherein the titanium metal ring 2 is butted with the stainless steel ring 4 through a seam allowance structure, and the seam allowance structure comprises: an outer spigot 4-1 arranged at the port of the stainless steel ring 4, brazing solder filled between the end ring surface 2-1 of the titanium metal ring 2 and the bottom ring surface of the outer spigot 4-1, and the brazing solder forms an end brazing combination body 24 through brazing.
Preferably, the brazing material is a brazing material ring 5, and the brazing material ring 5 is sleeved on the inner convex ring 4-2 of the outer spigot 4-1. The brazing material is brazing solder paste which is evenly smeared on the bottom ring surface of the outer spigot 4-1.
The first processing method of the composite metal ring for manufacturing the titanium metal vacuum cup is characterized by comprising the following steps:
the method comprises the following steps: taking a titanium tube with the inner diameter smaller than the outer diameter of the cup opening of the titanium metal liner 1 and the outer diameter larger than the outer diameter of the cup opening of the stainless steel shell 3, and processing the titanium tube into a titanium metal ring 2 by adopting an instrument lathe;
step two: taking a stainless steel pipe with the inner diameter smaller than that of the titanium metal ring 2 and the outer diameter larger than that of the cup opening of the stainless steel shell 3, machining the stainless steel pipe into stainless steel rings 4 by adopting an instrument lathe, wherein the number of the stainless steel rings 4 is twice that of the titanium metal ring 2, and one end of each stainless steel ring 4 is provided with an outer spigot 4-1 matched with the port of the titanium metal ring in a turning mode;
step three: deoiling the titanium metal ring 2 and the stainless steel ring 4, and preferably cleaning by an ultrasonic cleaning machine;
step four: butting one end of a titanium metal ring 2 to the outer spigot 4-1 of one stainless steel ring 4, butting the other end of the titanium metal ring 2 to the outer spigot 4-1 of the other stainless steel ring 4, and clamping brazing materials between end ring surfaces at two ends of the titanium metal ring 2 and a bottom ring surface of the corresponding outer spigot 4-1;
step five: carrying out vacuum brazing in a vacuum furnace to enable the brazing material to form an end brazing combination body 24 for connecting the titanium metal ring 2 and the stainless steel ring 4, wherein the titanium metal ring 2 and the stainless steel rings 4 at two ends form a double-composite metal ring with an integral structure through the corresponding end brazing combination bodies 24;
step six: and cutting the double composite metal rings into two composite metal rings from the middle by an instrument vehicle.
Optimally, the inner diameter of the composite metal ring is larger than or equal to the outer diameter of the cup mouth of the titanium metal inner container 1 through an instrument vehicle, the outer diameter of the composite metal ring is equal to the outer diameter of the upper port of the stainless steel shell 3, a spigot A4-3 matched with the upper port of the stainless steel shell 3 is arranged on the middle lower part of the outer side of the stainless steel ring 4 through the instrument vehicle, and the end ring surface of the upper port of the stainless steel shell 3 is welded with the stainless steel ring 4 at the joint of the spigot A4-3; the outer diameter of a titanium metal ring 2 on the end part brazing combination body is smaller than that of a stainless steel ring 4 through an instrument vehicle, and the inner side of the titanium metal ring 2 is welded with the outer side of an upper port of the titanium metal inner container 1; a vacuum layer is formed between the titanium metal inner container 1 and the stainless steel shell 3 through a tailless vacuumizing process at the bottom of the stainless steel shell 3. The brazing material is a brazing material ring 5 or brazing soldering paste, and the thickness of the brazing material ring 5 is preferably 0.15-0.25 mm.
The second processing method of the composite metal ring for manufacturing the titanium metal vacuum cup is characterized by comprising the following steps:
the method comprises the following steps: taking a titanium pipe matched with the cup mouth of a titanium metal liner 1 of the vacuum cup, and machining to prepare a titanium metal ring 2;
step two: taking a stainless steel pipe matched with the cup mouth of a stainless steel shell 3 of the vacuum cup, and cutting to manufacture a stainless steel ring 4, wherein one end of the stainless steel ring 4 is cut with an outer spigot 4-1 matched with the port of the titanium metal ring 2;
step three: deoiling the titanium metal ring 2 and the stainless steel ring 4;
step four: butting one end of a titanium metal ring 2 on the outer spigot 4-1 of the stainless steel ring 4, and clamping brazing materials between the end ring surface of the titanium metal ring 2 and the bottom ring surface of the outer spigot 4-1;
step five: and performing vacuum brazing in a vacuum furnace to enable the brazing material to form an end brazing combination body 24 for connecting the titanium metal ring 2 and the stainless steel ring 4, wherein the titanium metal ring 2 and the stainless steel ring 4 form a composite metal ring with an integral structure through the end brazing combination body 24.
Preferably, the titanium metal ring 2 on the upper part of the composite metal ring is welded with the cup opening of the titanium metal inner container 1, the stainless steel ring 4 on the lower part of the composite metal ring is welded with the cup opening of the stainless steel shell 3, and a vacuum layer is formed between the titanium metal inner container 1 and the stainless steel shell 3 through a tailless vacuumizing process at the bottom of the stainless steel shell. The brazing material is a brazing material ring 5 or brazing soldering paste, and the thickness of the brazing material ring 5 is preferably 0.15-0.25 mm; the cutting adopts turning or grinding of an instrument lathe.
The titanium metal vacuum cup is manufactured by using the composite metal ring of each technical scheme. The structure and the processing technique of the vacuum layer between the inner container and the outer shell of the vacuum cup are the same as those in the prior art, and reference can be made to corresponding published patent documents, which are not repeated herein.
The brazing processing technology of the titanium metal ring and the stainless steel ring in each technical scheme comprises the following steps:
the brazing processing technology of the brazing material ring of the titanium metal ring and the stainless steel ring comprises the following steps:
the solder ring adopts annular flake Ag85Cu silver-based solder. Placing the assembled composite ring in a vacuum brazing furnace, and vacuumizing to 1 multiplied by 10-2Heating was started after Pa. Heating to 200 deg.C at a rate of 10 deg.C/min and maintaining for 20 min; heating to 650 deg.C at 10 deg.C/min and maintaining for 20min, heating to 780 deg.C at 10 deg.C/min and maintaining for 30min, heating to 880 deg.C at 5 deg.C/min and maintaining for 20min, stopping heating, cooling with furnace or introducing argon to 150 deg.C or below, closing high vacuum, and cooling to 80 deg.C or below.
The brazing processing technology of the brazing solder paste of the titanium metal ring and the stainless steel ring comprises the following steps:
the soldering paste is Ag72CuNi0.75, and the dosage of each composite metal ring is about 0.5 g. Placing the assembled composite ring in a vacuum brazing furnace, and vacuumizing to 1 multiplied by 10-2Heating was started after Pa. Heating to 200 deg.C at a rate of 10 deg.C/min and maintaining for 20 min; heating to 650 deg.C at 10 deg.C/min and maintaining for 20min, heating to 750 deg.C at 10 deg.C/min and maintaining for 30min, heating to 850 deg.C at 5 deg.C/min and maintaining for 20min, stopping heating, cooling with furnace or introducing argon to 150 deg.C or below, closing high vacuum, and cooling to 80 deg.C or below.
Claims (4)
1. The utility model provides a composite metal circle for making titanium metal thermos cup, including be used for with titanium metal inner bag (1) welded titanium metal circle (2) of thermos cup for with stainless steel shell (3) welded stainless steel ring (4) of thermos cup, its characterized in that: titanium metal circle (2) and nonrust steel ring (4) pass through the tang structure butt joint, the tang structure includes: an outer spigot (4-1) arranged at the port of the stainless steel ring (4), brazing material filled between the end ring surface (2-1) of the titanium metal ring (2) and the bottom ring surface of the outer spigot (4-1), and the brazing material forming an end brazing combination body (24) through brazing.
2. The composite metal ring for making a titanium metal vacuum cup according to claim 1, wherein: the brazing material is a brazing material ring (5), and the brazing material ring (5) is sleeved on the inner side convex ring (4-2) of the outer spigot (4-1).
3. The composite metal ring for making a titanium metal vacuum cup according to claim 1, wherein: the brazing material is brazing solder paste which is uniformly coated on the bottom ring surface of the outer spigot (4-1).
4. The utility model provides an use titanium metal thermos cup that compound metal circle made which characterized in that: the processing method of the composite metal ring comprises the following steps:
the method comprises the following steps: taking a titanium tube with the inner diameter smaller than the outer diameter of the cup opening of the titanium metal inner container (1) and the outer diameter larger than the outer diameter of the cup opening of the stainless steel shell (3), and processing the titanium tube into a titanium metal ring (2) by adopting an instrument lathe;
step two: taking a stainless steel pipe with the inner diameter smaller than that of the titanium metal ring (2) and the outer diameter larger than that of the cup opening of the stainless steel shell (3), machining the stainless steel pipe into stainless steel rings (4) by adopting an instrument lathe, wherein the number of the stainless steel rings (4) is twice that of the titanium metal ring (2), and one end of each stainless steel ring (4) is turned with an outer spigot (4-1) matched with the port of the titanium metal ring;
step three: deoiling the titanium metal ring (2) and the stainless steel ring (4);
step four: butting one end of a titanium metal ring (2) to the outer spigot (4-1) of one stainless steel ring (4), butting the other end of the titanium metal ring (2) to the outer spigot (4-1) of the other stainless steel ring (4), and clamping brazing materials between end ring surfaces at two ends of the titanium metal ring (2) and the bottom ring surface of the corresponding outer spigot (4-1);
step five: carrying out vacuum brazing in a vacuum furnace to enable the brazing material to form an end brazing combination body (24) for connecting the titanium metal ring (2) and the stainless steel ring (4), wherein the titanium metal ring (2) and the stainless steel rings (4) at two ends form a double-composite metal ring with an integral structure through the corresponding end brazing combination body (24);
step six: cutting the double composite metal rings into two composite metal rings from the middle by an instrument vehicle;
turning off an inner side convex ring (4-2) of an outer seam allowance (4-1) through an instrument vehicle, enabling the inner diameter of the composite metal ring to be larger than or equal to the outer diameter of a cup opening of a titanium metal inner container (1) and enabling the end parts of the titanium metal ring 2 and a stainless steel ring 4 to be directly butted only through an end part brazing combination body (24), enabling the outer diameter of the composite metal ring to be equal to the outer diameter of an upper port of a stainless steel shell (3), arranging a seam allowance A (4-3) matched with the upper port of the stainless steel shell (3) on the middle lower part of the outer side of the stainless steel ring (4) through the instrument vehicle, and welding an end ring surface of the upper port of the stainless steel shell (3) and the stainless steel ring (4) at the butt joint part of the seam allowance A (4-3); the outer diameter of a titanium metal ring (2) on the end part brazing combination body is smaller than that of a stainless steel ring (4) through an instrument vehicle, and the inner side of the titanium metal ring (2) is welded with the outer side of an upper port of the titanium metal liner (1); a vacuum layer is formed between the titanium metal inner container (1) and the stainless steel shell (3) through a tailless vacuumizing process at the bottom of the stainless steel shell (3).
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| CN111820692A (en) * | 2020-08-21 | 2020-10-27 | 浙江厚岸科技发展有限公司 | Titanium metal vacuum cup and manufacturing process thereof |
| CN111839145A (en) * | 2020-08-28 | 2020-10-30 | 浙江厚岸科技发展有限公司 | Vacuum cup with titanium metal inner container and stainless steel shell and manufacturing process thereof |
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| CN202941845U (en) * | 2012-12-13 | 2013-05-22 | 邓舒笑 | Combined type portable heat preservation tea set |
| CN204274024U (en) * | 2014-12-16 | 2015-04-22 | 胡琪 | Two drink cooling cup |
| CN204908915U (en) * | 2015-08-24 | 2015-12-30 | 晋江佶邦机械技术服务有限公司 | Take temperature warning mark's thermos cup |
| CN206792204U (en) * | 2016-11-09 | 2017-12-26 | 李晨曦 | A kind of pupil's nutrition equilibrium cup |
| CN207653966U (en) * | 2017-07-05 | 2018-07-27 | 安徽省富光实业股份有限公司 | A kind of internal sealed tee-steeping cup |
| CN209186444U (en) * | 2018-05-23 | 2019-08-02 | 湖北贵族真空科技股份有限公司 | A kind of pure titanium and the compound double-layer vacuum vessel of stainless steel |
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