CN114273870A - Titanium inner container three-layer composite vacuum cup and manufacturing method thereof - Google Patents
Titanium inner container three-layer composite vacuum cup and manufacturing method thereof Download PDFInfo
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- CN114273870A CN114273870A CN202210056269.6A CN202210056269A CN114273870A CN 114273870 A CN114273870 A CN 114273870A CN 202210056269 A CN202210056269 A CN 202210056269A CN 114273870 A CN114273870 A CN 114273870A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 256
- 239000010936 titanium Substances 0.000 title claims abstract description 256
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 256
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 45
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000010227 cup method (microbiological evaluation) Methods 0.000 title description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 434
- 239000010935 stainless steel Substances 0.000 claims abstract description 434
- 238000003466 welding Methods 0.000 claims abstract description 122
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 84
- 239000010959 steel Substances 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000007769 metal material Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 9
- 238000004381 surface treatment Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- 230000035622 drinking Effects 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000465 moulding Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 235000016213 coffee Nutrition 0.000 description 1
- 235000013353 coffee beverage Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
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Abstract
The invention discloses a titanium liner three-layer composite vacuum cup and a manufacturing method thereof.A stainless steel shell is sleeved outside a stainless steel middle layer liner, the upper ends of the cup openings of the stainless steel middle layer liner and the stainless steel middle layer liner are parallel and level, a lower welding seam is formed by welding, a vacuum steel layer cup body is formed by vacuumizing, a titanium liner is sleeved in the vacuum steel layer cup body, the upper ends of the cup openings of the titanium liner and the vacuum steel layer cup body are parallel and level, and an upper welding seam is formed by welding. The manufacturing method comprises the following steps: processing a titanium inner container, a stainless steel middle-layer inner container, a stainless steel shell and a stainless steel shell bottom sheet, sleeving the stainless steel shell outside the stainless steel middle-layer inner container, enabling the upper ends of the cup mouths of the titanium inner container and the stainless steel middle-layer inner container to be parallel and level, forming a lower welding line on the lower parts of the upper end parts of the cup mouths of the stainless steel middle-layer inner container and the stainless steel shell bottom sheet, and forming a vacuum steel layer cup body through a vacuumizing process; the titanium inner container is sleeved in the vacuum steel layer cup body from the cup opening of the vacuum steel layer cup body, so that the upper ends of the cup openings of the titanium inner container and the vacuum steel layer cup body are parallel and level, and an upper welding seam is formed by welding. The invention improves the comfort level and the heat preservation effect of the mouth part, reduces the rejection rate of the titanium liner, and ensures that the contained drinking liquid cannot be polluted by harmful substances.
Description
Technical Field
The invention relates to a vacuum cup, in particular to a titanium liner three-layer composite vacuum cup and a manufacturing method thereof.
Background
Because titanium metal is nontoxic and harmless to human bodies and resists strong acid and strong alkali, daily beverages such as coffee, fruit juice, tea, carbonated beverage, milk and the like can be filled without any heavy metal being precipitated, and therefore, titanium metal vacuum cups are more and more favored by people. However, the price of titanium is too high, and if the inner layer and the outer layer of the cup body of the vacuum cup are both made of titanium, the manufacturing cost of the vacuum cup is very high, which is not beneficial to popularization and application.
The existing three-layer composite vacuum cup with a titanium inner container on the market at present comprises a cup body, wherein the cup body mainly comprises the titanium inner container, a stainless steel middle-layer inner container and a stainless steel shell. A vacuum layer is formed between the stainless steel middle layer inner container and the stainless steel outer shell through vacuum pumping. Although the manufacturing cost is reduced on the premise of meeting the heat preservation requirement, the titanium liner three-layer composite vacuum cup in the prior art has the following defects:
1. in order to improve the comfort level of the mouth of a user contacting with the cup mouth during drinking, three layers (a titanium inner container, a stainless steel middle-layer inner container and a stainless steel shell) are required to be flush with each other at the cup mouth part so as to increase the wall thickness of the mouth part, the three layers are flush with each other at the cup mouth part, and the appearance is relatively beautiful. However, in the cup body with three parallel cups, two welds (the weld between the stainless steel middle liner and the stainless steel shell, and the weld between the titanium liner and the stainless steel middle liner) are all welded at the same position of the mouth of the vacuum cup (for example, in a cup with a manufactured liner, as filed in application No. 202021777970. X), which easily causes air leakage of the weld, because only one weld is welded at two welds, it is difficult to ensure the air tightness of the weld.
2. The existing three-layer composite vacuum cup with a titanium inner container is manufactured by firstly placing the titanium inner container into a stainless steel middle-layer inner container, well matching and welding the titanium inner container and the stainless steel middle-layer inner container, then welding a stainless steel shell and the opening part of the stainless steel middle-layer inner container, then welding a stainless steel shell bottom sheet, and then vacuumizing. However, in such an operation, because air is left between the stainless steel middle-layer liner and the titanium liner, when a sealed area between the stainless steel middle-layer liner and the stainless steel shell is vacuumized through a vacuumizing hole on the bottom sheet of the stainless steel shell, an inside-outside air pressure difference between two cavities of the cup body can be formed, air between the titanium liner and the stainless steel middle-layer liner can expand, and the hidden trouble that the titanium liner and the stainless steel middle-layer liner are deformed and scrapped exists.
3. When the titanium liner is sealed in the stainless steel middle layer liner and cannot be taken out (such as 202110296734.9 application number, a manufacturing method of a titanium liner three-layer composite vacuum cup), when the titanium liner is scrapped due to poor vacuum between the stainless steel middle layer liner and the stainless steel shell, the titanium liner cannot be taken out completely, the titanium liner is scrapped together, and valuable titanium metal materials are wasted; particularly, the titanium inner container is vacuumized along with the stainless steel middle-layer inner container and the stainless steel outer shell, and metal particles (even heavy metal particles) precipitated from the stainless steel material can pollute the inner wall of the titanium inner container in a high-temperature and negative-pressure environment in the vacuum furnace, so that the body health of a user is influenced.
Disclosure of Invention
The invention aims to provide a titanium liner three-layer composite vacuum cup and a manufacturing method thereof, which can improve the comfort degree of the mouth of a drinker during drinking water and have more beautiful appearance; the air tightness of the welding line at the opening part of the vacuum cup is good, and the heat preservation effect is improved; the hidden danger of deformation and scrapping of the titanium inner container and the stainless steel middle-layer inner container is eliminated; the rejection rate of the titanium inner container is reduced, and the utilization rate of the precious titanium metal material is further improved; especially, the pollution of harmful substances to the inner wall of the titanium inner container in the manufacturing process is thoroughly avoided, and the drinking liquid contained in the titanium inner container is ensured not to be polluted by the harmful substances.
In order to achieve the purpose, the invention adopts the following technical scheme:
a titanium liner three-layer composite vacuum cup comprises a titanium liner, a stainless steel middle liner and a stainless steel shell, wherein the stainless steel shell is sleeved outside the stainless steel middle liner, the upper ends of the cup mouths of the stainless steel middle liner and the stainless steel shell are flush, the lower parts of the upper end parts of the cup mouths of the two are welded to form a lower welding line so as to fixedly connect the two, the lower end of the stainless steel shell is provided with a stainless steel shell bottom plate with a vacuumizing hole, the stainless steel middle-layer liner, the stainless steel shell and the stainless steel shell bottom plate are enclosed into a vacuum steel layer cup body with a vacuum layer through vacuumizing, the titanium inner container is sleeved in the vacuum steel layer cup body from the cup opening of the vacuum steel layer cup body, the upper end of the cup opening of the titanium inner container is flush with the upper end of the cup opening of the vacuum steel layer cup body, an upper welding seam is formed at the upper end parts of the cup mouths of the titanium inner container and the stainless steel middle-layer inner container by welding so as to fixedly connect the titanium inner container and the stainless steel middle-layer inner container together, and a heat insulation layer is formed between the titanium inner container and the stainless steel middle-layer inner container.
The titanium inner container, the stainless steel middle-layer inner container and the stainless steel shell are all in a straight cylinder shape, the cup opening portion of the stainless steel middle-layer inner container extends towards the upper portion of the outer side to form a middle-layer vertical section, the outer wall of the middle-layer vertical section is matched with the inner wall of the cup opening portion of the stainless steel shell, the cup opening portion of the titanium inner container extends towards the upper portion of the outer side to form an inner-layer vertical section, and the outer wall of the inner-layer vertical section is matched with the inner wall of the upper portion of the middle-layer vertical section.
A manufacturing method of the three-layer composite titanium vacuum cup comprises the following steps:
the method comprises the following steps: the titanium inner container is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: the bottom of the stainless steel middle-layer liner and the side wall of the stainless steel middle-layer liner are of an integral structure, or the bottom of the stainless steel middle-layer liner is connected to the lower end of the side wall of the stainless steel middle-layer liner through welding; the stainless steel shell bottom plate and the stainless steel shell are of an integral structure, and a vacuumizing hole is formed in the stainless steel shell bottom plate; the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell, and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer liner; step three: sleeving the stainless steel shell outside the stainless steel middle-layer liner to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be flush, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding line so as to fixedly connect the stainless steel shell and the stainless steel middle-layer liner together;
step four: the stainless steel middle-layer liner and the stainless steel shell which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner, the stainless steel shell and the bottom sheet of the stainless steel shell are enclosed into a vacuum steel layer cup body with a vacuum layer;
step five: sleeving the titanium inner container in the vacuum steel layer cup body from the cup opening of the vacuum steel layer cup body, enabling the upper end of the cup opening of the titanium inner container to be flush with the upper end of the cup opening of the vacuum steel layer cup body, forming an upper welding seam by welding the upper end parts of the cup openings of the titanium inner container and the vacuum steel layer cup body so as to fixedly connect the titanium inner container and the stainless steel middle layer inner container together, and forming a heat insulation layer between the titanium inner container and the stainless steel middle layer inner container;
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
A manufacturing method of the three-layer composite titanium vacuum cup comprises the following steps:
the method comprises the following steps: the titanium inner container is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: the bottom of the stainless steel middle-layer liner and the side wall of the stainless steel middle-layer liner are of an integral structure, or the bottom of the stainless steel middle-layer liner is connected to the lower end of the side wall of the stainless steel middle-layer liner through welding; the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell, and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer liner; step three: sleeving the stainless steel shell outside the stainless steel middle-layer liner to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be flush, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding line so as to fixedly connect the stainless steel shell and the stainless steel middle-layer liner together; connecting a stainless steel shell bottom sheet to the lower end of the stainless steel shell by welding, wherein a vacuumizing hole is formed in the stainless steel shell bottom sheet;
step four: the stainless steel middle-layer liner and the stainless steel shell which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner, the stainless steel shell and the bottom sheet of the stainless steel shell are enclosed into a vacuum steel layer cup body with a vacuum layer;
step five: sleeving the titanium inner container in the vacuum steel layer cup body from the cup opening of the vacuum steel layer cup body, enabling the upper end of the cup opening of the titanium inner container to be flush with the upper end of the cup opening of the vacuum steel layer cup body, forming an upper welding seam by welding the upper end parts of the cup openings of the titanium inner container and the vacuum steel layer cup body so as to fixedly connect the titanium inner container and the stainless steel middle layer inner container together, and forming a heat insulation layer between the titanium inner container and the stainless steel middle layer inner container;
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
A titanium liner three-layer composite vacuum cup comprises a titanium liner, a stainless steel middle layer bottomless liner and a stainless steel shell, wherein the stainless steel shell is sleeved outside the stainless steel middle layer bottomless liner, the upper ends of cup mouths of the titanium liner and the stainless steel middle layer bottomless liner are parallel and level, lower welding seams are formed at the lower parts of the upper end parts of the cup mouths of the stainless steel middle layer bottomless liner and the stainless steel shell through welding to enable the stainless steel middle layer bottomless liner and the stainless steel shell to be fixedly connected together, the lower end part of the stainless steel middle layer bottomless liner extends towards the outer lower part to form a lower end part vertical section, the lower end part vertical section is fixedly connected with the lower end part of the stainless steel shell through welding, a vacuumizing hole is formed in the stainless steel middle layer bottomless liner, the stainless steel middle layer bottomless liner and the stainless steel shell are enclosed into a vacuum steel layer bottomless cup body with a vacuum layer, the titanium liner is sleeved in the vacuum steel layer bottomless cup body, the upper end part of the cup mouth of the titanium liner is parallel and level with the upper end part of the cup mouth of the vacuum steel layer bottomless cup body through welding to enable the titanium liner and the upper end part of the cup mouth of the vacuum steel layer bottomless cup body to be fixedly connected together, the stainless steel shell bottom sheet is arranged at the lower end of the stainless steel shell, so that the titanium inner container, the stainless steel middle-layer bottomless inner container, the lower end part of the stainless steel shell and the stainless steel shell bottom sheet enclose a heat-insulating layer.
The titanium inner bag, stainless steel middle level inner bag that does not have end, the upper portion of stainless steel shell all is equipped with the kink to the inside binding off, vertical portion upper end above the kink of stainless steel shell extends to the inside top and forms outer vertical section, the inner wall of this outer vertical section and the stainless steel middle level do not have the vertical section outer wall adaptation in middle level of end inner bag cup oral area, first vertical portion upper end above the kink of titanium inner bag extends to the inside top and forms the vertical portion of second, the upper end of the vertical portion of second extends to the outside top and forms the vertical section of inlayer, the outer wall of this vertical section of inlayer and the vertical section inner wall adaptation in middle level of stainless steel middle level do not have end inner bag cup oral area.
A manufacturing method of the three-layer composite titanium vacuum cup comprises the following steps:
the method comprises the following steps: the titanium inner container is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: processing a stainless steel middle-layer bottomless liner, a stainless steel shell and a stainless steel shell bottom sheet by adopting a stainless steel material for manufacturing the vacuum cup, wherein a vacuumizing hole is processed on the stainless steel middle-layer bottomless liner, so that the lower end part of the stainless steel middle-layer bottomless liner extends towards the outer lower part to form a lower end part vertical section, and the diameter of the outer wall of the lower end part vertical section is matched with the diameter of the inner wall of the lower end part of the stainless steel shell; the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer bottomless liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell, and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer bottomless liner through a conventional bending process; step three: sleeving the stainless steel shell outside the bottomless liner in the stainless steel middle layer to enable the upper ends of the cup mouths of the stainless steel shell and the liner to be parallel and level, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the liner to form a lower welding line to fixedly connect the stainless steel shell and the liner; the vertical section of the lower end part is fixedly connected with the lower end part of the stainless steel shell by welding;
step four: the stainless steel middle layer bottomless liner and the stainless steel shell which are fixedly connected together are enclosed into a vacuum steel layer bottomless cup body with a vacuum layer by a vacuum pumping process in a vacuum furnace;
step five: sleeving the titanium liner in the vacuum steel layer bottomless cup body, enabling the upper end of the cup mouth of the titanium liner to be flush with the upper end of the cup mouth of the vacuum steel layer bottomless cup body, and forming an upper welding seam by welding the upper end parts of the cup mouths of the titanium liner and the vacuum steel layer bottomless cup body so as to fixedly connect the titanium liner and the vacuum steel layer bottomless cup body; fixedly connecting the stainless steel shell bottom sheet to the lower end of the stainless steel shell through welding or interference fit, and enclosing the titanium inner container, the stainless steel middle-layer bottomless inner container, the lower end part of the stainless steel shell and the stainless steel shell bottom sheet into a heat-insulating layer;
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
because the inner layer and the outer layer of the three-layer composite vacuum cup are all parallel and level at the upper end of the cup opening, the thickness of the cup opening is increased, the comfort degree of the mouth part of a drinker during drinking can be improved, and the appearance is more attractive;
although the inner layer and the outer layer are all parallel and level at the upper end of the cup opening, an upper welding seam and a lower welding seam are adopted during welding, so that the hidden danger of welding seam air leakage caused by two times of welding at the same welding seam is avoided, the air tightness of the welding seam at the opening part of the vacuum cup is good, and the heat preservation effect is improved;
because the titanium inner container is assembled and welded after the vacuum steel layer cup body and the vacuum steel layer bottomless cup body are vacuumized, the hidden danger of deformation and scrapping of the titanium inner container and the stainless steel middle layer inner container is eliminated; the rejection rate of the titanium inner container is reduced, and the utilization rate of the precious titanium metal material is further improved; especially, the pollution of harmful substances to the inner wall of the titanium inner container in the manufacturing process is thoroughly avoided, and the drinking liquid contained in the titanium inner container is ensured not to be polluted by the harmful substances.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of the vacuum steel cup of FIG. 1;
FIG. 4 is a schematic view of another configuration of the present invention;
FIG. 5 is an enlarged view of portion B of FIG. 4;
fig. 6 is a schematic structural view of the vacuum steel layer bottomless cup body in fig. 4.
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 6. 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.
Example 1:
the invention relates to a titanium liner three-layer composite vacuum cup, which comprises a titanium liner 1, a stainless steel middle-layer liner 2 and a stainless steel shell 3, wherein the stainless steel shell 3 is sleeved outside the stainless steel middle-layer liner 2, the upper ends of the cup mouths of the stainless steel middle-layer liner and the stainless steel shell are flush, the lower parts of the upper end parts of the cup mouths of the stainless steel middle-layer liner and the stainless steel shell are welded to form a lower welding line 4 so as to be fixedly connected together, a stainless steel shell bottom sheet 6 with a vacuumizing hole 9 is arranged at the lower end of the stainless steel shell 3 (the stainless steel shell 3 and the stainless steel shell bottom sheet 6 can be welded together, the stainless steel plate can be stretched into an integral structure by the existing process, a vacuum steel layer cup body 8 with a vacuum layer 7 is formed by the stainless steel middle-layer liner 2, the stainless steel shell 3 and the stainless steel shell bottom sheet 6 through vacuumizing, the titanium liner 1 is sleeved in the vacuum steel layer 8 from the cup mouth of the vacuum steel layer cup body 8, the upper end of the cup mouth of the titanium inner container 1 is flush with the upper end of the cup mouth of the vacuum steel layer cup body 8, an upper welding seam 5 is formed at the upper end parts of the cup mouths of the titanium inner container and the vacuum steel layer cup body through welding so that the titanium inner container and the vacuum steel layer cup body are fixedly connected together, and a heat preservation layer 10 is formed between the titanium inner container 1 and the stainless steel middle layer inner container 2.
Preferably, the titanium liner 1, the stainless steel middle-layer liner 2 and the stainless steel shell 3 are all in a straight cylinder shape, the cup mouth part of the stainless steel middle-layer liner 2 extends towards the upper part of the outer side to form a middle-layer vertical section 2-1, the outer wall of the middle-layer vertical section 2-1 is matched with the inner wall of the cup mouth part of the stainless steel shell 3, preferably in tight fit, the interference magnitude is 0.05-0.4 mm, the cup mouth part of the titanium liner 1 extends towards the upper part of the outer side to form an inner-layer vertical section 1-1, the outer wall of the inner-layer vertical section 1-1 is matched with the inner wall of the upper part of the middle-layer vertical section 2-1, preferably in tight fit, and the interference magnitude is 0.05-0.4 mm.
Preferably, the lower welding seam 4 is 3-6mm lower than the upper end of the cup mouth and is laser welded. The upper welding seam 5 is formed by medium-frequency or variable-frequency roll welding, and the welding width is 0.5-4 mm. The thickness of the vacuum layer 7 is 0.05 mm-20 mm.
The first manufacturing method of the three-layer composite titanium vacuum cup (the stainless steel shell bottom sheet 6 and the stainless steel shell 3 are of an integral structure) comprises the following steps:
the method comprises the following steps: the titanium inner container 1 is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container 1 and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container by welding;
preferably, in the step one: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, necking, flattening, thinning and flattening the opening bottom to form a semi-finished titanium liner; taking a titanium inner container bottom sheet, carrying out laser welding on the semi-finished titanium inner container and the titanium inner bottom, and further processing through recrystallization and anodic oxidation processes to form a titanium inner container 1;
step two: the stainless steel middle-layer liner 2, the stainless steel shell 3 and the stainless steel shell bottom sheet 6 are processed by adopting corresponding stainless steel materials for manufacturing the vacuum cup, the bottom of the stainless steel middle-layer liner 2 and the side wall of the stainless steel middle-layer liner 2 are of an integral structure, or the bottom of the stainless steel middle-layer liner 2 is connected to the lower end of the side wall of the stainless steel middle-layer liner 2 through welding; the stainless steel shell bottom plate 6 and the stainless steel shell 3 are of an integral structure (a stainless steel plate is stretched and formed by the existing process), and the stainless steel shell bottom plate 6 is provided with a vacuumizing hole 9; the diameter of the outer wall of the upper end part of the cup mouth of the stainless steel middle-layer liner (2) is matched with the diameter of the inner wall of the upper end part of the cup mouth of the stainless steel shell (3), preferably tight fit is achieved, the interference magnitude is 0.05-0.4 mm, the diameter of the outer wall of the upper end part of the cup mouth of the titanium liner (1) is matched with the diameter of the inner wall of the upper end part of the cup mouth of the stainless steel middle-layer liner (2), preferably tight fit is achieved, and the interference magnitude is 0.05-0.4 mm; preferably, in step two: taking a stainless steel raw material pipe A, performing water swelling forming, and then sequentially performing cup separation, thinning, bottom cutting and bottom flattening to form a semi-finished product middle-layer liner; taking a stainless steel middle-layer bottom plate, welding the stainless steel middle-layer bottom plate to the bottom of the semi-finished middle-layer liner to form a stainless steel middle-layer liner 2; taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, necking and flat bottom to form a stainless steel shell 3;
according to the requirement, threads for being screwed with the cup cover can be processed on the upper part of the titanium liner 1 or the upper part of the stainless steel shell 3 through a conventional rolling process (threads do not need to be processed on the upper parts of cup mouths); step three: sleeving the stainless steel shell 3 outside the stainless steel middle-layer liner 2 to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be parallel and level, and welding the lower parts of the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding line 4 to fixedly connect the stainless steel shell and the lower welding line;
preferably, the lower welding seam 4 is 3-6mm lower than the upper end of the cup mouth and is welded by laser;
step four: the stainless steel middle-layer liner 2 and the stainless steel shell 3 which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner 2, the stainless steel shell 3 and the stainless steel shell bottom sheet 6 are enclosed into a vacuum steel layer cup body 8 with a vacuum layer 7;
preferably, the thickness of the vacuum layer 7 is 0.05mm to 20 mm.
Step five: sleeving the titanium liner 1 in the vacuum steel layer cup body 8 from the cup opening of the vacuum steel layer cup body 8, enabling the upper end of the cup opening of the titanium liner 1 to be flush with the upper end of the cup opening of the vacuum steel layer cup body 8, forming an upper welding seam 5 by welding the upper end parts of the cup openings of the titanium liner 1 and the vacuum steel layer cup body 8 so as to fixedly connect the titanium liner 1 and the stainless steel middle layer liner 2 together, and forming a heat insulation layer 10 between the titanium liner 1 and the stainless steel middle layer liner 2;
preferably, the upper welding seam 5 is formed by medium-frequency or variable-frequency seam welding, and the welding width is 0.5-4 mm.
Step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
The second manufacturing method of the three-layer composite titanium vacuum cup (the stainless steel shell bottom 6 and the stainless steel shell 3 are welded) comprises the following steps:
the method comprises the following steps: the titanium inner container 1 is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container 1 and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container by welding;
preferably, in the step one: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, necking, flattening, thinning and flattening the opening bottom to form a semi-finished titanium liner; taking a titanium inner container bottom sheet, carrying out laser welding on the semi-finished titanium inner container and the titanium inner bottom, and further processing through recrystallization and anodic oxidation processes to form a titanium inner container 1;
step two: the stainless steel middle-layer liner 2, the stainless steel shell 3 and the stainless steel shell bottom sheet 6 are processed by adopting corresponding stainless steel materials for manufacturing the vacuum cup, the bottom of the stainless steel middle-layer liner 2 and the side wall of the stainless steel middle-layer liner 2 are of an integral structure, or the bottom of the stainless steel middle-layer liner 2 is connected to the lower end of the side wall of the stainless steel middle-layer liner 2 through welding; the diameter of the outer wall of the upper end part of the cup mouth of the stainless steel middle-layer liner (2) is matched with the diameter of the inner wall of the upper end part of the cup mouth of the stainless steel shell (3), preferably tight fit is achieved, the interference magnitude is 0.05-0.4 mm, the diameter of the outer wall of the upper end part of the cup mouth of the titanium liner (1) is matched with the diameter of the inner wall of the upper end part of the cup mouth of the stainless steel middle-layer liner (2), preferably tight fit is achieved, and the interference magnitude is 0.05-0.4 mm;
preferably, in step two: taking a stainless steel raw material pipe A, performing water swelling forming, and then sequentially performing cup separation, thinning, bottom cutting and bottom flattening to form a semi-finished product middle-layer liner; taking a stainless steel middle-layer bottom plate, welding the stainless steel middle-layer bottom plate to the bottom of the semi-finished middle-layer liner to form a stainless steel middle-layer liner 2; taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, necking and flat bottom to form a stainless steel shell 3;
according to the requirement, threads for being screwed with the cup cover can be processed on the upper part of the titanium liner 1 or the upper part of the stainless steel shell 3 through a conventional rolling process (threads do not need to be processed on the upper parts of cup mouths); step three: sleeving the stainless steel shell 3 outside the stainless steel middle-layer liner 2 to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be parallel and level, and welding the lower parts of the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding line 4 to fixedly connect the stainless steel shell and the lower welding line; connecting a stainless steel shell bottom sheet 6 to the lower end of the stainless steel shell 3 through welding, wherein a vacuumizing hole 9 is formed in the stainless steel shell bottom sheet 6;
preferably, the lower welding seam 4 is 3-6mm lower than the upper end of the cup mouth and is welded by laser;
step four: the stainless steel middle-layer liner 2 and the stainless steel shell 3 which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner 2, the stainless steel shell 3 and the stainless steel shell bottom sheet 6 are enclosed into a vacuum steel layer cup body 8 with a vacuum layer 7;
preferably, the thickness of the vacuum layer 7 is 0.05 mm-20 mm;
step five: sleeving the titanium liner 1 in the vacuum steel layer cup body 8 from the cup opening of the vacuum steel layer cup body 8, enabling the upper end of the cup opening of the titanium liner 1 to be flush with the upper end of the cup opening of the vacuum steel layer cup body 8, forming an upper welding seam 5 by welding the upper end parts of the cup openings of the titanium liner 1 and the vacuum steel layer cup body 8 so as to fixedly connect the titanium liner 1 and the stainless steel middle layer liner 2 together, and forming a heat insulation layer 10 between the titanium liner 1 and the stainless steel middle layer liner 2;
preferably, the upper welding seam 5 is formed by medium-frequency or variable-frequency seam welding, and the welding width is 0.5-4 mm.
Step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
Example 2:
a titanium liner three-layer composite vacuum cup comprises a titanium liner 1, a stainless steel middle layer bottomless liner 02, a stainless steel shell bottom sheet 6 and a stainless steel shell 3, wherein the stainless steel shell 3 is sleeved outside the stainless steel middle layer bottomless liner 02, the upper ends of the cup mouths of the stainless steel middle layer bottomless liner and the stainless steel shell are parallel, the lower parts of the upper end parts of the cup mouths of the stainless steel middle layer bottomless liner and the stainless steel shell are welded to form a lower welding seam 4 so as to be fixedly connected with the stainless steel middle layer bottomless liner and the stainless steel shell, the lower end part of the stainless steel middle layer bottomless liner 02 extends towards the outer lower part to form a lower end part vertical section 02-1, the lower end part vertical section 02-1 and the lower end part of the stainless steel shell 3 are fixedly connected together by welding, a vacuumizing hole 9 is arranged on the stainless steel middle layer bottomless liner 02, a vacuum steel layer bottomless cup body 08 with a vacuum layer 7 is formed by surrounding the stainless steel shell and the stainless steel middle layer bottomless cup body 08 by vacuumizing, the titanium liner 1 is sleeved in the vacuum steel layer bottomless cup body 08, the upper end of the cup mouth of the titanium inner container 1 is flush with the upper end of the cup mouth of the vacuum steel layer bottomless cup body 08, an upper welding seam 5 is formed at the upper end parts of the cup mouths of the titanium inner container and the vacuum steel layer bottomless cup body to enable the titanium inner container 1 and the stainless steel layer bottomless inner container 02 to be fixedly connected together, and a stainless steel shell bottom sheet 6 is arranged at the lower end of the stainless steel shell 3, so that a heat insulation layer 10 is enclosed by the titanium inner container 1, the stainless steel layer bottomless inner container 02, the lower end part of the stainless steel shell 3 and the stainless steel shell bottom sheet 6.
The titanium liner 1, the stainless steel middle-layer bottomless liner 02 and the stainless steel shell 3 are respectively provided with a bent part which is closed towards the inner side at the upper part, the upper end of the vertical part above the bent part of the stainless steel shell 3 extends towards the inner side and upwards to form an outer-layer vertical section 3-1, the diameter of the inner wall of the outer-layer vertical section 3-1 is matched with the diameter of the outer wall of the middle-layer vertical section 2-1 at the cup opening part of the stainless steel middle-layer bottomless liner 02, the preferred tight fit is realized, the interference magnitude is 0.05-0.4 mm, the upper end of the first vertical section 1-2 above the bent part of the titanium liner 1 extends towards the inner side and upwards to form a second vertical section 1-3, the upper end of the second vertical section 1-3 extends towards the outer side and upwards to form an inner-layer vertical section 1, the diameter of the outer wall of the inner-layer vertical section 1 is matched with the diameter of the inner wall of the middle-layer vertical section 2-1 at the cup opening part of the stainless steel middle-layer bottomless liner 02, preferably, the interference fit is close, and the interference range is 0.05-0.4 mm.
The manufacturing method of the three-layer composite titanium vacuum cup comprises the following steps:
the method comprises the following steps: the titanium inner container 1 is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container 1 and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container by welding;
preferably, a titanium raw material pipe is taken, subjected to water expansion molding, and subjected to cup separation, necking, flattening, thinning and bottom flattening in sequence to form a semi-finished titanium liner; taking a titanium inner container bottom sheet, carrying out laser welding on the semi-finished titanium inner container and the titanium inner bottom, and further processing through recrystallization and anodic oxidation processes to form a titanium inner container 1;
step two: the vacuum cup is characterized in that a stainless steel material for manufacturing the vacuum cup is adopted to process a stainless steel middle-layer bottomless liner 02, a stainless steel shell 3 and a stainless steel shell bottom sheet 6, a vacuumizing hole 9 is processed on the stainless steel middle-layer bottomless liner 02, the lower end part of the stainless steel middle-layer bottomless liner 02 extends towards the outer lower part to form a lower end part vertical section 02-1, the diameter of the outer wall of the lower end part vertical section 02-1 is matched with the diameter of the inner wall of the lower end part of the stainless steel shell 3, preferably, the tight fit is realized, and the interference magnitude is 0.05-0.4 mm; the diameter of the outer wall of the middle-layer vertical section 2-1 is matched with the diameter of the inner wall of the cup opening part of the stainless steel shell 3, the diameter of the outer wall of the inner-layer vertical section 1-1 is matched with the diameter of the inner wall of the upper part of the middle-layer vertical section 2-1, preferably the diameters are all tight fit, and the interference range is 0.05-0.4 mm;
according to the requirement, threads for being in threaded connection with the cup cover can be processed on the upper part of the titanium liner 1 or the upper part of the stainless steel shell 3 through a conventional rolling process; step three: sleeving the stainless steel shell 3 outside the stainless steel middle layer bottomless liner 02 to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle layer bottomless liner to be flush, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the stainless steel middle layer bottomless liner to form a lower welding seam 4 to fixedly connect the stainless steel shell and the lower liner; the lower end vertical section 02-1 is fixedly connected with the lower end of the stainless steel shell 3 through welding;
preferably, the lower welding seam 4 is 3-6mm lower than the upper end of the cup mouth and is welded by laser;
step four: the stainless steel middle-layer bottomless liner 02 and the stainless steel shell 3 which are fixedly connected together are vacuumized in a vacuum furnace to form a vacuum steel layer bottomless cup body 08 with a vacuum layer 7, wherein the vacuum steel layer bottomless cup body 02 and the stainless steel shell 3 are surrounded;
preferably, the thickness of the vacuum layer 7 is 0.05 mm-20 mm;
step five: sleeving the titanium liner 1 in the vacuum steel layer bottomless cup body 08 to enable the upper end of the cup mouth of the titanium liner 1 to be flush with the upper end of the cup mouth of the vacuum steel layer bottomless cup body 08, and welding the titanium liner 1 and the cup mouth to form an upper welding line 5 so as to fixedly connect the titanium liner and the vacuum steel layer bottomless cup body 08; fixedly connecting the stainless steel shell bottom sheet 6 to the lower end of the stainless steel shell 3 through welding or interference fit, and enclosing the titanium inner container 1, the stainless steel middle-layer bottomless inner container 02, the lower end of the stainless steel shell 3 and the stainless steel shell bottom sheet 6 into a heat-insulating layer 10;
preferably, the upper welding seam 5 is subjected to intermediate-frequency or variable-frequency roll welding, and the welding width is 0.5-4 mm;
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
Claims (7)
1. The utility model provides a compound thermos cup of titanium inner bag three-layer, includes titanium inner bag (1), stainless steel middle level inner bag (2) and stainless steel shell (3), its characterized in that: the stainless steel shell (3) is sleeved outside the stainless steel middle-layer liner (2), the upper ends of the cup openings of the stainless steel middle-layer liner and the stainless steel middle-layer liner are parallel and level, the lower parts of the upper end parts of the cup openings of the stainless steel middle-layer liner and the stainless steel middle-layer liner are welded to form a lower welding seam (4) so as to be fixedly connected together, the lower end of the stainless steel shell (3) is provided with a stainless steel shell bottom sheet (6) with a vacuumizing hole (9), the stainless steel middle-layer liner (2), the stainless steel shell (3) and the stainless steel shell bottom sheet (6) are vacuumized to form a vacuum steel layer cup body (8) with a vacuum layer (7), the titanium liner (1) is sleeved in the vacuum steel layer cup body (8) from the cup opening of the vacuum steel layer cup body (8), the upper end of the cup opening of the titanium liner (1) is parallel and level with the upper end parts of the cup openings of the vacuum steel layer cup body (8), and an upper welding seam (5) is formed by welding the upper end parts of the cup openings of the stainless steel middle-layer cup body and the titanium liner and the vacuum steel middle-layer cup body (8) so as to be fixedly connected together, an insulating layer (10) is formed between the titanium inner container (1) and the stainless steel middle-layer inner container (2).
2. The titanium liner three-layer composite vacuum cup as claimed in claim 1, wherein: the titanium inner container (1), the stainless steel middle-layer inner container (2) and the stainless steel shell (3) are all in a straight cylinder shape, a cup opening portion of the stainless steel middle-layer inner container (2) extends towards the upper portion of the outer side to form a middle-layer vertical section (2-1), the outer wall of the middle-layer vertical section (2-1) is matched with the inner wall of a cup opening portion of the stainless steel shell (3), the cup opening portion of the titanium inner container (1) extends towards the upper portion of the outer side to form an inner-layer vertical section (1-1), and the outer wall of the inner-layer vertical section (1-1) is matched with the inner wall of the upper portion of the middle-layer vertical section (2-1).
3. A method for manufacturing a three-layer composite titanium vacuum cup as claimed in claim 1, which is characterized by comprising the following steps:
the method comprises the following steps: the titanium inner container (1) is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container (1) and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: the stainless steel middle-layer liner (2), the stainless steel shell (3) and the stainless steel shell bottom sheet (6) are processed by adopting stainless steel materials for manufacturing the vacuum cup, the bottom of the stainless steel middle-layer liner (2) and the side wall of the stainless steel middle-layer liner (2) are of an integral structure, or the bottom of the stainless steel middle-layer liner (2) is connected to the lower end of the side wall of the stainless steel middle-layer liner (2) through welding; the stainless steel shell bottom plate (6) and the stainless steel shell (3) are of an integral structure, and the stainless steel shell bottom plate (6) is provided with a vacuumizing hole (9); the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer liner (2) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell (3), and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner (1) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer liner (2); step three: sleeving the stainless steel shell (3) outside the stainless steel middle-layer liner (2) to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be parallel and level, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding seam (4) so as to fixedly connect the stainless steel shell and the lower welding seam;
step four: the stainless steel middle-layer liner (2) and the stainless steel shell (3) which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner (2), the stainless steel shell (3) and the stainless steel shell bottom sheet (6) are enclosed into a vacuum steel layer cup body (8) with a vacuum layer (7);
step five: sleeving the titanium inner container (1) in the vacuum steel layer cup body (8) from the cup opening of the vacuum steel layer cup body (8), enabling the upper end of the cup opening of the titanium inner container (1) to be flush with the upper end of the cup opening of the vacuum steel layer cup body (8), welding the upper end parts of the cup openings of the titanium inner container and the vacuum steel layer cup body to form an upper welding seam (5) so as to fixedly connect the titanium inner container and the vacuum steel layer cup body together, and forming a heat insulation layer (10) between the titanium inner container (1) and the stainless steel middle layer inner container (2);
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
4. A method for manufacturing a three-layer composite titanium vacuum cup as claimed in claim 1, which is characterized by comprising the following steps:
the method comprises the following steps: the titanium inner container (1) is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container (1) and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: the stainless steel middle-layer liner (2), the stainless steel shell (3) and the stainless steel shell bottom sheet (6) are processed by adopting stainless steel materials for manufacturing the vacuum cup, the bottom of the stainless steel middle-layer liner (2) and the side wall of the stainless steel middle-layer liner (2) are of an integral structure, or the bottom of the stainless steel middle-layer liner (2) is connected to the lower end of the side wall of the stainless steel middle-layer liner (2) through welding; the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer liner (2) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell (3), and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner (1) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer liner (2); (ii) a Step three: sleeving the stainless steel shell (3) outside the stainless steel middle-layer liner (2) to enable the upper ends of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to be parallel and level, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the stainless steel middle-layer liner to form a lower welding seam (4) so as to fixedly connect the stainless steel shell and the lower welding seam; connecting a stainless steel shell bottom plate (6) to the lower end of the stainless steel shell (3) by welding, wherein a vacuumizing hole (9) is formed in the stainless steel shell bottom plate (6);
step four: the stainless steel middle-layer liner (2) and the stainless steel shell (3) which are fixedly connected together are vacuumized in a vacuum furnace, so that the stainless steel middle-layer liner (2), the stainless steel shell (3) and the stainless steel shell bottom sheet (6) are enclosed into a vacuum steel layer cup body (8) with a vacuum layer (7);
step five: sleeving the titanium inner container (1) in the vacuum steel layer cup body (8) from the cup opening of the vacuum steel layer cup body (8), enabling the upper end of the cup opening of the titanium inner container (1) to be flush with the upper end of the cup opening of the vacuum steel layer cup body (8), welding the upper end parts of the cup openings of the titanium inner container and the vacuum steel layer cup body to form an upper welding seam (5) so as to fixedly connect the titanium inner container and the vacuum steel layer cup body together, and forming a heat insulation layer (10) between the titanium inner container (1) and the stainless steel middle layer inner container (2);
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
5. The utility model provides a compound thermos cup of titanium inner bag three-layer, includes titanium inner bag (1), stainless steel middle level bottomless inner bag (02) and stainless steel shell (3), its characterized in that: the stainless steel shell (3) is sleeved outside the stainless steel middle layer bottomless inner container (02), the upper ends of the cup openings of the stainless steel middle layer bottomless inner container and the stainless steel middle layer bottomless inner container are parallel and level, the lower parts of the upper end parts of the cup openings of the stainless steel middle layer bottomless inner container and the stainless steel middle layer bottomless inner container are welded to form a lower end part vertical section (02-1), the lower end part vertical section (02-1) is fixedly connected with the lower end part of the stainless steel shell (3) through welding, a vacuumizing hole (9) is formed in the stainless steel middle layer bottomless inner container (02), the stainless steel middle layer bottomless inner container (02) and the stainless steel shell (3) form a vacuum steel layer bottomless cup body (08) with a vacuum layer (7) through vacuumizing, the titanium inner container (1) is sleeved in the vacuum steel layer bottomless cup body (08), the upper end of the cup opening of the titanium inner container (1) is parallel and level with the upper end of the cup opening of the vacuum steel layer bottomless cup body (08), an upper welding seam (5) is formed at the upper end parts of the cup openings of the titanium inner container and the stainless steel outer container by welding so as to enable the titanium inner container and the stainless steel outer container to be fixedly connected together, and a stainless steel outer container bottom sheet (6) is arranged at the lower end of the stainless steel outer container (3), so that the titanium inner container (1), the stainless steel middle bottomless inner container (02), the lower end part of the stainless steel outer container (3) and the stainless steel outer container bottom sheet (6) are enclosed to form a heat insulation layer (10).
6. The titanium liner three-layer composite vacuum cup as claimed in claim 5, wherein: the upper parts of the titanium inner container (1), the stainless steel middle layer bottomless inner container (02) and the stainless steel shell (3) are all provided with bent parts which are closed towards the inner side, the upper end of the vertical part on the bent parts of the stainless steel shell (3) extends towards the inner side and upwards to form an outer layer vertical section (3-1), the inner wall of the outer layer vertical section (3-1) is matched with the outer wall of the middle layer vertical section (2-1) of the cup mouth part of the stainless steel middle layer bottomless liner (02), the upper end of the first vertical part (1-2) above the bending part of the titanium liner (1) extends towards the inner upper side to form a second vertical part (1-3), the upper end of the second vertical part (1-3) extends towards the outer upper side to form the inner layer vertical section (1-1), the outer wall of the inner layer vertical section (1-1) is matched with the inner wall of the middle layer vertical section (2-1) at the cup mouth part of the stainless steel middle layer bottomless liner (02).
7. A method for manufacturing a three-layer composite titanium vacuum cup as claimed in claim 5, which is characterized by comprising the following steps:
the method comprises the following steps: the titanium inner container (1) is processed by adopting a titanium metal material for manufacturing the inner container, the bottom of the titanium inner container (1) and the side wall of the titanium inner container are of an integral structure, or the bottom of the titanium inner container is connected to the lower end of the side wall of the titanium inner container through welding;
step two: the stainless steel material for manufacturing the vacuum cup is adopted to process a stainless steel middle layer bottomless liner (02), a stainless steel shell (3) and a stainless steel shell bottom sheet (6), a vacuumizing hole (9) is processed on the stainless steel middle layer bottomless liner (02), so that the lower end part of the stainless steel middle layer bottomless liner (02) extends towards the outer lower part to form a lower end part vertical section (02-1), and the diameter of the outer wall of the lower end part vertical section (02-1) is matched with the diameter of the inner wall of the lower end part of the stainless steel shell (3); the diameter of the outer wall of the upper end part of the cup opening of the stainless steel middle-layer bottomless liner (02) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel shell (3), and the diameter of the outer wall of the upper end part of the cup opening of the titanium liner (1) is matched with the diameter of the inner wall of the upper end part of the cup opening of the stainless steel middle-layer bottomless liner (02); step three: sleeving the stainless steel shell (3) outside the bottomless liner (02) in the stainless steel middle layer to enable the upper ends of the cup mouths of the stainless steel shell and the liner to be parallel and level, and welding the lower parts of the upper end parts of the cup mouths of the stainless steel shell and the liner to form a lower welding line (4) to fixedly connect the stainless steel shell and the liner; the lower end vertical section (02-1) is fixedly connected with the lower end of the stainless steel shell (3) by welding;
step four: the stainless steel middle layer bottomless inner container (02) and the stainless steel shell (3) which are fixedly connected together are vacuumized in a vacuum furnace to form a vacuum steel layer bottomless cup body (08) with a vacuum layer (7) by the aid of the stainless steel middle layer bottomless inner container (02) and the stainless steel shell (3);
step five: sleeving the titanium inner container (1) in the vacuum steel layer bottomless cup body (08), enabling the upper end of the cup mouth of the titanium inner container (1) to be flush with the upper end of the cup mouth of the vacuum steel layer bottomless cup body (08), and welding the upper ends of the cup mouths of the titanium inner container and the vacuum steel layer bottomless cup body to form an upper welding seam (5) so as to fixedly connect the titanium inner container and the vacuum steel layer bottomless cup body; fixedly connecting the stainless steel shell bottom sheet (6) to the lower end of the stainless steel shell (3) through welding or interference fit, and enclosing the titanium inner container (1), the stainless steel middle layer bottomless inner container (02), the lower end part of the stainless steel shell (3) and the stainless steel shell bottom sheet (6) into an insulating layer (10);
step six: and grinding the mouth part of the three-layer composite titanium vacuum cup, and carrying out surface treatment on the stainless steel shell to finish the manufacture of the three-layer composite vacuum cup with the titanium liner.
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