CN112826298B - Manufacturing method of titanium liner three-layer composite vacuum cup - Google Patents
Manufacturing method of titanium liner three-layer composite vacuum cup Download PDFInfo
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- CN112826298B CN112826298B CN202110296734.9A CN202110296734A CN112826298B CN 112826298 B CN112826298 B CN 112826298B CN 202110296734 A CN202110296734 A CN 202110296734A CN 112826298 B CN112826298 B CN 112826298B
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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
- A47G19/2288—Drinking vessels or saucers used for table service with means for keeping liquid cool or hot
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a method for manufacturing a titanium liner three-layer composite vacuum cup, which comprises the following steps: s1: forming a semi-finished product liner; s2: forming a titanium inner container; s3: crystallizing the titanium liner; s4: forming a semi-finished product middle-layer liner; s5: a gap is left between the mouth part of the intermediate layer liner of the semi-finished product and the mouth part of the titanium liner to form a stainless steel intermediate layer liner; s6: forming a semi-finished shell; s7: forming a lower weld; s8: forming a stainless steel shell and forming a vacuum layer; s9: forming a heat-insulating layer and forming an upper welding seam; s10: grinding the lower welding line and the upper welding line, and treating the surface of the stainless steel shell. Through the design, the invention can realize the consistent air pressure between the inside and the outside in the vacuum-pumping process, and avoid the deformation and the scrapping of the titanium liner and the stainless steel middle-layer liner caused by the expansion of the air between the titanium liner and the stainless steel middle-layer liner in the vacuum-pumping process, thereby improving the production quality of the vacuum cup.
Description
Technical Field
The invention relates to the technical field of vacuum cups, in particular to a manufacturing method of a titanium liner three-layer composite vacuum cup.
Background
At present, in the manufacturing process of the three-layer composite vacuum cup, the middle layer and the inner layer are welded firstly, then the outer layer and the middle layer are welded, and finally the outer layer bottom sheet is welded and vacuumized. However, air is left between the middle layer and the inner layer by such operation, and the inner and outer air pressure difference is formed when the outer layer bottom sheet is vacuumized, thereby affecting the quality of the vacuum cup. Improvements are needed.
Disclosure of Invention
The invention provides a novel method for manufacturing a titanium liner three-layer composite vacuum cup, aiming at the defects of the prior art that the inner and outer air pressure difference is formed when the outer layer negative is vacuumized and the like.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a manufacturing method of a titanium liner three-layer composite vacuum cup comprises the following steps:
s1: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, opening flattening, necking, roll sealing of water ribs, edge curling, flattening, thinning and opening flattening to form a semi-finished product liner;
s2: taking a titanium liner bottom sheet, and welding the titanium liner bottom sheet to the bottom of the semi-finished liner to form the titanium liner;
s3: crystallizing the titanium inner container by using a vacuum furnace;
s4: taking a stainless steel raw material pipe A, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, curling, flattening, spinning and flat bottom to form a semi-finished product middle-layer liner;
s5: sleeving the semi-finished product middle-layer liner on the outer side of the titanium liner for port matching, wherein the position of the port of the semi-finished product middle-layer liner is lower than that of the port of the titanium liner, so that a gap is reserved between the port of the semi-finished product middle-layer liner and the port of the titanium liner, then taking a stainless steel middle-layer bottom sheet, and welding the stainless steel middle-layer bottom sheet to the bottom of the semi-finished product middle-layer liner to form the stainless steel middle-layer liner;
s6: taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking and flat bottom to form a semi-finished product shell;
s7: sleeving the semi-finished shell on the outer side of the stainless steel middle-layer liner, wherein the position of the opening of the semi-finished shell is lower than that of the opening of the stainless steel middle-layer liner, and then welding the opening of the semi-finished shell on the stainless steel middle-layer liner to form a lower welding seam;
s8: taking a stainless steel shell bottom plate with a vacuumizing hole, welding the stainless steel shell bottom plate on the bottom of the semi-finished shell to form a stainless steel shell, and vacuumizing to form a vacuum layer;
s9: using a gas injector to inject inert gas between the stainless steel middle-layer liner and the titanium liner, so as to discharge air between the stainless steel middle-layer liner and the titanium liner to form a heat insulation layer, and then welding the stainless steel middle-layer liner on the titanium liner to form an upper welding seam;
s10: and grinding the lower welding line and the upper welding line, and performing surface treatment on the stainless steel shell to finish the manufacture of the titanium liner three-layer composite vacuum cup.
In the step S1, the separately formed semi-finished inner container is lower in processing difficulty, so that the processing efficiency and the yield are improved, and the production cost is reduced. In the step S2, after the titanium liner bottom sheet is independently welded on the semi-finished liner, a complete sealed cavity is formed, so that the part of the vacuum cup contacting with the liquid is all titanium, and the liquid is prevented from being polluted. In the step S3, the surface crystallization treatment is carried out on the titanium liner, so that the characteristics of the titanium material can be more prominent, and the characteristics of the titanium material are better. In the step S4, the separately formed semi-finished product middle layer liner is finally wrapped in the stainless steel shell, so that the requirement of the semi-finished product middle layer liner on surface smoothness is not high, the processing difficulty is greatly reduced, the processing efficiency and the yield are improved, and the production cost is reduced. In the step S5, the gap is reserved, so that air between the two layers can be pumped away in the vacuumizing process, the air pressure inside and outside the vacuum cup is consistent, deformation and scrapping of the titanium inner container and the stainless steel middle-layer inner container caused by expansion of the air between the two layers in the vacuumizing process are avoided, the production quality of the vacuum cup is improved, and an air charging port is reserved for the subsequent step of charging inert gas between the two layers. In the step S6, the separately formed semi-finished shell has lower processing difficulty, thereby improving the processing efficiency and the yield and reducing the production cost. In the step S7, the lower welding seam and the upper welding seam are staggered, so that the air tightness of the two welding seams is ensured, and the subsequent vacuumizing step caused by air leakage of the welding seams due to the fact that the same positions are welded twice is avoided. In the step S8, the stainless steel shell and the stainless steel middle-layer liner form a complete sealed cavity, and a vacuum environment is formed after vacuum pumping, so that the heat preservation efficiency of the vacuum cup is improved. In the step S9, the inert gas can reduce the heat convection of the heat-insulating layer, so that the heat-insulating efficiency is improved by 5-10% compared with the condition that the air is in the heat-insulating layer. In the step S10, the ground can remove the welding traces of the lower welding seam and the upper welding seam, so that the surfaces of the lower welding seam and the upper welding seam are smoother, and the user experiences more comfortably when using the welding tool.
Through the design, the invention can realize the consistent air pressure between the inside and the outside in the vacuum-pumping process, and avoid the deformation and the scrapping of the titanium liner and the stainless steel middle-layer liner caused by the expansion of the air between the titanium liner and the stainless steel middle-layer liner in the vacuum-pumping process, thereby improving the production quality of the vacuum cup.
Preferably, in the manufacturing method of the titanium liner three-layer composite vacuum cup, in the step S5, the step of sleeving the intermediate layer liner on the outer side of the titanium liner to form the port comprises the following steps: pre-inverting the mouth part of the titanium inner container, sleeving the semi-finished product middle layer inner container on the outer side of the titanium inner container, and inverting the mouth part of the titanium inner container to form an arc-shaped mouth part with the width of 1.5-3 mm.
The arc-shaped mouth part with the width of 1.5 mm-3 mm can be formed through the design, and a larger lip contact area is provided in the drinking process of a user, so that the use experience of the invention is improved.
Preferably, in the manufacturing method of the titanium liner three-layer composite vacuum cup, in step S5, the position of the opening of the intermediate layer liner of the semi-finished product is 1mm to 5mm lower than the position of the opening of the titanium liner.
Through the design, a gap can be formed between the middle-layer inner container opening part of the semi-finished product and the titanium inner container opening part, and the gap cannot be too small or too large, so that a sufficient exhaust space is provided for subsequent vacuumizing, the subsequent welding efficiency is guaranteed, and deformation of the vacuum cup caused by the formation of inside and outside air pressure is avoided.
Preferably, in the method for manufacturing the titanium liner three-layer composite vacuum cup, in step S7, the position of the opening of the semi-finished shell is 1mm to 5mm lower than the position of the opening of the stainless steel intermediate liner.
The mouth of the semi-finished shell is staggered with the mouth of the stainless steel middle-layer liner, so that the complete air tightness of the lower welding line and the upper welding line is ensured, and the phenomenon that the air leakage and the vacuum degree are lost due to the welding of the same position is avoided. The distance between the two welding lines is kept between 1mm and 5mm, so that the two welding lines are not influenced mutually, and the yield of the vacuum cup is improved.
Preferably, in the manufacturing method of the titanium inner container three-layer composite vacuum cup, in step S7, the welding between the mouth of the semi-finished shell and the stainless steel middle layer inner container is laser welding or brazing.
The invention can be widely compatible with laser welding equipment in the current market by adopting laser welding, for example, the welding device disclosed in the patent of CN201811167317.9, argon protection welding device for titanium cup can be adopted, so that the production cost is reduced, the welding quality can be ensured, and the vacuum effect and the yield are ensured. The brazing can be adopted to simultaneously perform the brazing of the opening part of the semi-finished shell and the stainless steel middle-layer liner and the brazing of the bottom of the semi-finished shell and the stainless steel middle-layer bottom sheet in production, thereby reducing the working procedure times and improving the production efficiency.
Preferably, in the above method for manufacturing a titanium liner three-layer composite vacuum cup, the welding the stainless steel middle layer liner to the titanium liner in step S9 includes: and tightly matching the mouth position of the stainless steel middle-layer liner with the mouth position of the titanium liner in a flush manner, and welding the stainless steel middle-layer liner on the titanium liner.
The invention adopts the close-fitting design of the mouth part, so that the invention can adopt simplified welding equipment, for example, a welding device disclosed in the patent of CN201811167317.9, argon shield welding device for titanium cup, thereby reducing the production cost and ensuring the welding quality.
Preferably, in the above method for manufacturing a titanium inner liner three-layer composite vacuum cup, the welding the stainless steel middle layer inner liner to the titanium inner liner in step S9 includes: and pressing the mouth part of the titanium inner container to the mouth part of the stainless steel middle-layer inner container, and welding the stainless steel middle-layer inner container on the titanium inner container.
Through the design, the mouth structures in different forms can be produced, the welding quality is improved, and the welding device disclosed in the patent of CN201811167317.9 'an argon protection welding device for titanium cups' can be adopted.
Preferably, in the manufacturing method of the titanium liner three-layer composite vacuum cup, in step S9, the thickness of the heat insulation layer is 0.05mm to 2mm, the stainless steel middle layer liner protrudes inwards or the titanium liner protrudes outwards, and the stainless steel middle layer liner and the titanium liner are tightly matched through the protruding part.
Through the design, the air in the heat insulation layer can be pumped away in the vacuumizing process, the production quality of the vacuum cup is improved, sufficient inert gas can be filled, and the heat insulation efficiency of the vacuum cup is further improved. On the other hand, stainless steel middle level inner bag passes through the bulge position tight fit with the titanium inner bag, further plays the effect of supporting the titanium inner bag, avoids the thermos cup accident to fall and leads to the titanium inner bag to warp, has improved the life of thermos cup.
Preferably, in the manufacturing method of the titanium liner three-layer composite vacuum cup, in step S9, the thickness of the heat insulation layer is 0.01mm to 0.05mm, and the stainless steel middle layer liner protrudes outwards or the titanium liner protrudes inwards to form the air guide groove.
Through the design, the stainless steel middle layer inner container is basically tightly matched with the titanium inner container, the effect of supporting the titanium inner container is further achieved, the phenomenon that the titanium inner container is deformed due to the fact that the vacuum cup falls accidentally is avoided, and the service life of the vacuum cup is prolonged. The air guide groove plays a role in guiding air, so that the production efficiency of the vacuum cup is higher, and the flushing effect of inert gas is also ensured.
Preferably, in the method for manufacturing the titanium liner three-layer composite vacuum cup, in step S9, the inert gas is injected for 5S to 100S, and the inert gas is argon or xenon.
Through the design, not only can enough inert gas be filled into the heat-insulating layer, but also the filling time is limited, so that the production cost is reduced, and the production efficiency is improved. The inert gas is argon or xenon, so that the production cost can be controlled, and a good heat insulation effect can be provided.
Drawings
FIG. 1 is a schematic structural diagram of the present invention after being processed by steps S1, S2, S3, S4 and S5;
FIG. 2 is a schematic view of the structure of the titanium inner container with the mouth portion thereof reversed;
FIG. 3 is a schematic structural view of the mouth and the back of the titanium inner container;
FIG. 4 is a schematic structural diagram of the present invention after being processed by steps S6, S7, and S8;
FIG. 5 is a structural schematic diagram of the flush welding of the mouth of the stainless steel middle layer liner and the mouth of the titanium liner;
FIG. 6 is a schematic structural view of the welding of the mouth of the stainless steel intermediate layer inner container and the mouth of the titanium inner container in the present invention;
FIG. 7 is a schematic view of the structure of the inward bulge of the stainless steel middle liner of the present invention;
FIG. 8 is a schematic view of the outward convex structure of the titanium liner of the present invention;
FIG. 9 is a schematic view of the structure of the outward bulge of the stainless steel middle layer inner container of the present invention;
FIG. 10 is a schematic view of the inward protrusion of the titanium liner of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the accompanying figures 1-10 and the detailed description, but they are not intended to limit the invention:
example 1
A manufacturing method of a titanium liner three-layer composite vacuum cup comprises the following steps:
s1: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, opening flattening, necking, roll sealing of water ribs, edge curling, flattening, thinning and opening flattening to form a semi-finished product liner;
s2: taking a titanium liner bottom sheet, and welding the titanium liner bottom sheet to the bottom of the semi-finished liner to form a titanium liner 1;
s3: crystallizing the titanium liner 1 by using a vacuum furnace;
s4: taking a stainless steel raw material pipe A, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, curling, patting, spinning and flat bottom to form a semi-finished product middle-layer liner;
s5: sleeving the semi-finished product middle-layer liner on the outer side of the titanium liner 1 for matching, wherein the position of the mouth of the semi-finished product middle-layer liner is lower than that of the titanium liner 1, so that a gap is reserved between the mouth of the semi-finished product middle-layer liner and the mouth of the titanium liner 1, then taking a stainless steel middle-layer bottom sheet, and welding the stainless steel middle-layer bottom sheet to the bottom of the semi-finished product middle-layer liner to form a stainless steel middle-layer liner 2;
s6: taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking and flat bottom to form a semi-finished shell;
s7: sleeving the semi-finished shell on the outer side of the stainless steel middle-layer liner 2, wherein the position of the opening of the semi-finished shell is lower than that of the opening of the stainless steel middle-layer liner 2, and then welding the opening of the semi-finished shell on the stainless steel middle-layer liner 2 to form a lower welding seam 4;
s8: taking a stainless steel shell bottom plate with a vacuumizing hole, welding the stainless steel shell bottom plate to the bottom of the semi-finished shell to form a stainless steel shell 3, and vacuumizing to form a vacuum layer;
s9: using a gas injector to flush inert gas between the stainless steel middle-layer liner 2 and the titanium liner 1, so as to discharge air between the stainless steel middle-layer liner 2 and the titanium liner 1 to form a heat insulation layer, and then welding the stainless steel middle-layer liner 2 on the titanium liner 1 to form an upper welding seam 5;
s10: and grinding the lower welding line 4 and the upper welding line 5, and performing surface treatment on the stainless steel shell 3 to finish the manufacture of the titanium liner three-layer composite vacuum cup.
Preferably, in step S5, the position of the mouth of the intermediate layer inner container of the semi-finished product is 1mm lower than the position of the mouth of the titanium inner container 1.
Preferably, in step S7, the mouth position of the semi-finished casing is 1mm lower than the mouth position of the stainless steel middle liner 2.
Preferably, in step S7, the welding between the mouth of the semi-finished shell and the stainless steel middle layer inner container 2 is laser welding or brazing.
Preferably, in step S9, the inert gas is flushed for 5 seconds, and the inert gas is argon or xenon.
Example 2
A manufacturing method of a titanium liner three-layer composite vacuum cup comprises the following steps:
s1: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, roll sealing of water ribs, edge curling, patting, thinning and flat bottom to form a semi-finished product liner;
s2: taking a titanium liner bottom sheet, and welding the titanium liner bottom sheet to the bottom of the semi-finished liner to form a titanium liner 1;
s3: crystallizing the titanium liner 1 by using a vacuum furnace;
s4: taking a stainless steel raw material pipe A, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, curling, flattening, spinning and flat bottom to form a semi-finished product middle-layer liner;
s5: sleeving the semi-finished product middle-layer liner on the outer side of the titanium liner 1 for matching, wherein the mouth part of the semi-finished product middle-layer liner is lower than the mouth part of the titanium liner 1, so that a gap is reserved between the mouth part of the semi-finished product middle-layer liner and the mouth part of the titanium liner 1, then taking a stainless steel middle-layer bottom sheet, and welding the stainless steel middle-layer bottom sheet to the bottom of the semi-finished product middle-layer liner to form a stainless steel middle-layer liner 2;
s6: taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking and flat bottom to form a semi-finished product shell;
s7: sleeving the semi-finished shell on the outer side of the stainless steel middle-layer liner 2, wherein the position of the opening of the semi-finished shell is lower than that of the opening of the stainless steel middle-layer liner 2, and then welding the opening of the semi-finished shell on the stainless steel middle-layer liner 2 to form a lower welding seam 4;
s8: taking a stainless steel shell bottom plate with a vacuumizing hole, welding the stainless steel shell bottom plate to the bottom of the semi-finished shell to form a stainless steel shell 3, and vacuumizing to form a vacuum layer;
s9: using a gas injector to flush inert gas between the stainless steel middle-layer liner 2 and the titanium liner 1, so as to discharge air between the stainless steel middle-layer liner 2 and the titanium liner 1 to form a heat insulation layer, and then welding the stainless steel middle-layer liner 2 on the titanium liner 1 to form an upper welding seam 5;
s10: and grinding the lower welding line 4 and the upper welding line 5, and performing surface treatment on the stainless steel shell 3 to finish the manufacture of the titanium liner three-layer composite vacuum cup.
Preferably, in step S5, the position of the mouth of the intermediate layer liner of the semi-finished product is 5mm lower than the position of the mouth of the titanium liner 1.
Preferably, in step S7, the mouth position of the semi-finished casing is 5mm lower than the mouth position of the stainless steel middle liner 2.
Preferably, in step S7, the welding between the mouth of the semi-finished casing and the stainless steel middle layer inner container 2 is laser welding or brazing.
Preferably, in step S9, the inert gas is flushed for 100 seconds, and the inert gas is argon or xenon.
Example 3
A manufacturing method of a titanium liner three-layer composite vacuum cup comprises the following steps:
s1: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, opening flattening, necking, roll sealing of water ribs, edge curling, flattening, thinning and opening flattening to form a semi-finished product liner;
s2: taking a titanium liner bottom sheet, and welding the titanium liner bottom sheet to the bottom of the semi-finished liner to form a titanium liner 1;
s3: crystallizing the titanium liner 1 by using a vacuum furnace;
s4: taking a stainless steel raw material pipe A, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, curling, flattening, spinning and flat bottom to form a semi-finished product middle-layer liner;
s5: sleeving the semi-finished product middle-layer liner on the outer side of the titanium liner 1 for matching, wherein the mouth part of the semi-finished product middle-layer liner is lower than the mouth part of the titanium liner 1, so that a gap is reserved between the mouth part of the semi-finished product middle-layer liner and the mouth part of the titanium liner 1, then taking a stainless steel middle-layer bottom sheet, and welding the stainless steel middle-layer bottom sheet to the bottom of the semi-finished product middle-layer liner to form a stainless steel middle-layer liner 2;
s6: taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking and flat bottom to form a semi-finished product shell;
s7: sleeving the semi-finished shell on the outer side of the stainless steel middle-layer liner 2, wherein the position of the opening of the semi-finished shell is lower than that of the opening of the stainless steel middle-layer liner 2, and then welding the opening of the semi-finished shell on the stainless steel middle-layer liner 2 to form a lower welding seam 4;
s8: taking a stainless steel shell bottom plate with a vacuumizing hole, welding the stainless steel shell bottom plate on the bottom of the semi-finished shell to form a stainless steel shell 3, and vacuumizing to form a vacuum layer;
s9: using a gas injector to flush inert gas between the stainless steel middle-layer liner 2 and the titanium liner 1, so as to discharge air between the stainless steel middle-layer liner 2 and the titanium liner 1 to form a heat insulation layer, and then welding the stainless steel middle-layer liner 2 on the titanium liner 1 to form an upper welding seam 5;
s10: and grinding the lower welding line 4 and the upper welding line 5, and performing surface treatment on the stainless steel shell 3 to finish the manufacture of the titanium liner three-layer composite vacuum cup.
Preferably, in step S5, the position of the mouth of the intermediate layer liner of the semi-finished product is 3mm lower than the position of the mouth of the titanium liner 1.
Preferably, in step S7, the mouth position of the semi-finished casing is 3mm lower than the mouth position of the stainless steel middle liner 2.
Preferably, in step S7, the welding between the mouth of the semi-finished casing and the stainless steel middle layer inner container 2 is laser welding or brazing.
Preferably, in step S9, the inert gas is flushed for 52.5 seconds, and the inert gas is argon or xenon.
Example 4
Preferably, the welding of the stainless steel intermediate tank 2 to the titanium tank 1 in step S9 includes: and (3) tightly matching the mouth position of the stainless steel middle-layer liner 2 with the mouth position of the titanium liner 1 in a flush manner, and welding the stainless steel middle-layer liner 2 on the titanium liner 1.
Other embodiments are the same as examples 1 to 3.
Example 5
Preferably, the step S5 of sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1 for matching comprises: pre-inverting the mouth part of the titanium liner 1, then sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1, and inverting the mouth part of the titanium liner 1 to form an arc-shaped mouth part with the width of 1.5 mm.
Preferably, the welding of the stainless steel intermediate tank 2 to the titanium tank 1 in step S9 includes: and pressing the mouth part of the titanium inner container 1 against the mouth part of the stainless steel middle-layer inner container 2, and welding the stainless steel middle-layer inner container 2 on the titanium inner container 1.
Other embodiments are the same as examples 1 to 3.
Example 6
Preferably, the step S5 of sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1 for matching comprises: pre-inverting the mouth of the titanium liner 1, sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1, and inverting the mouth of the titanium liner 1 to form an arc mouth with the width of 3mm.
Preferably, the welding of the stainless steel intermediate tank 2 to the titanium tank 1 in step S9 includes: and pressing the mouth part of the titanium inner container 1 against the mouth part of the stainless steel middle-layer inner container 2, and then welding the stainless steel middle-layer inner container 2 on the titanium inner container 1.
Other embodiments are the same as examples 1 to 3.
Example 7
Preferably, the step S5 of sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1 for matching comprises: pre-inverting the mouth part of the titanium liner 1, sleeving the intermediate-layer liner of the semi-finished product on the outer side of the titanium liner 1, and inverting the mouth part of the titanium liner 1 to form an arc-shaped mouth part with the width of 2.25 mm.
Preferably, the welding the stainless steel intermediate tank 2 to the titanium tank 1 in step S9 includes: and pressing the mouth part of the titanium inner container 1 against the mouth part of the stainless steel middle-layer inner container 2, and welding the stainless steel middle-layer inner container 2 on the titanium inner container 1.
Other embodiments are the same as in examples 1 to 3.
Example 8
Preferably, in step S9, the thickness of the heat-insulating layer is 0.05mm, the stainless steel middle layer liner 2 protrudes inward or the titanium liner 1 protrudes outward, and the stainless steel middle layer liner 2 and the titanium liner 1 are tightly matched through the protruding portion.
Other embodiments are the same as examples 1 to 7.
Example 9
Preferably, in step S9, the thickness of the insulating layer is 2mm, the stainless steel middle layer inner container 2 protrudes inward or the titanium inner container 1 protrudes outward, and the stainless steel middle layer inner container 2 and the titanium inner container 1 are tightly fitted through the protruding portion.
Other embodiments are the same as examples 1 to 7.
Example 10
Preferably, in step S9, the thickness of the insulating layer is 1.025mm, the stainless steel middle layer inner container 2 protrudes inward or the titanium inner container 1 protrudes outward, and the stainless steel middle layer inner container 2 and the titanium inner container 1 are tightly fitted through the protruding portion.
Other embodiments are the same as examples 1 to 7.
Example 11
Preferably, in step S9, the thickness of the insulating layer is 0.01mm, and the stainless steel middle liner 2 protrudes outward or the titanium liner 1 protrudes inward to form an air guide groove.
Other embodiments are the same as examples 1 to 7.
Example 12
Preferably, in step S9, the thickness of the insulating layer is 0.05mm, and the stainless steel middle layer inner container 2 protrudes outwards or the titanium inner container 1 protrudes inwards to form an air guide groove.
Other embodiments are the same as examples 1 to 7.
Example 13
Preferably, in step S9, the thickness of the insulating layer is 0.03mm, and the stainless steel middle liner 2 protrudes outward or the titanium liner 1 protrudes inward to form an air guide groove.
Other embodiments are the same as examples 1 to 7.
In summary, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the present invention.
Claims (8)
1. A manufacturing method of a titanium liner three-layer composite vacuum cup is characterized by comprising the following steps:
s1: taking a titanium raw material pipe, performing water expansion molding, and then sequentially performing cup separation, opening flattening, necking, roll sealing of water ribs, edge curling, flattening, thinning and opening flattening to form a semi-finished product liner;
s2: taking a titanium liner bottom sheet, and welding the titanium liner bottom sheet to the bottom of the semi-finished liner to form a titanium liner (1);
s3: crystallizing the titanium inner container (1) by using a vacuum furnace;
s4: taking a stainless steel raw material pipe A, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking, curling, flattening, spinning and flat bottom to form a semi-finished product middle-layer liner;
s5: sleeving the semi-finished product middle-layer liner on the outer side of the titanium liner (1) for matching, wherein the position of an opening of the semi-finished product middle-layer liner is lower than that of the titanium liner (1), so that a gap is reserved between the opening of the semi-finished product middle-layer liner and the opening of the titanium liner (1), then taking a stainless steel middle-layer bottom sheet, and welding the stainless steel middle-layer bottom sheet to the bottom of the semi-finished product middle-layer liner to form a stainless steel middle-layer liner (2);
s6: taking a stainless steel raw material pipe B, performing water expansion molding, and then sequentially performing cup separation, flat bottom, necking and flat bottom to form a semi-finished shell;
s7: sleeving the semi-finished shell on the outer side of the stainless steel middle-layer liner (2), wherein the position of an opening of the semi-finished shell is lower than that of the opening of the stainless steel middle-layer liner (2), welding the opening of the semi-finished shell on the stainless steel middle-layer liner (2) to form a lower welding seam (4), and welding the opening of the semi-finished shell and the stainless steel middle-layer liner (2) by laser welding or brazing;
s8: taking a stainless steel shell bottom plate with a vacuumizing hole, welding the stainless steel shell bottom plate on the bottom of the semi-finished shell to form a stainless steel shell (3), and vacuumizing to form a vacuum layer;
s9: using a gas injector to inject inert gas between the stainless steel middle layer liner (2) and the titanium liner (1), wherein the time for injecting the inert gas is 5-100 s, the inert gas is argon or xenon, so that air between the stainless steel middle layer liner (2) and the titanium liner (1) is discharged to form a heat insulation layer, and then welding the stainless steel middle layer liner (2) on the titanium liner (1) to form an upper welding seam (5);
s10: and grinding the lower welding line (4) and the upper welding line (5), and performing surface treatment on the stainless steel shell (3) to finish the manufacture of the titanium liner three-layer composite vacuum cup.
2. The manufacturing method of a titanium liner three-layer composite vacuum cup as claimed in claim 1, wherein the step S5 of sleeving the semi-finished product middle layer liner on the outer side of the titanium liner (1) for matching comprises the following steps: pre-inverting the mouth of the titanium inner container (1), sleeving the semi-finished product middle-layer inner container on the outer side of the titanium inner container (1), and inverting the mouth of the titanium inner container (1) to form an arc-shaped mouth with the width of 1.5-3 mm.
3. The manufacturing method of a titanium liner three-layer composite vacuum cup as claimed in claim 1, characterized in that: in the step S5, the position of the opening part of the intermediate layer inner container of the semi-finished product is 1-5 mm lower than the position of the opening part of the titanium inner container (1).
4. The manufacturing method of a titanium liner three-layer composite vacuum cup as claimed in claim 1, characterized in that: in the step S7, the position of the opening part of the semi-finished shell is 1 mm-5 mm lower than that of the stainless steel middle-layer liner (2).
5. The manufacturing method of a titanium inner liner three-layer composite thermos cup according to the claim 1, wherein the welding the stainless steel middle layer inner liner (2) on the titanium inner liner (1) in the step S9 comprises: and (3) enabling the mouth position of the stainless steel middle layer liner (2) to be flush with the mouth position of the titanium liner (1) for tight fit, and then welding the stainless steel middle layer liner (2) on the titanium liner (1).
6. The manufacturing method of a titanium liner three-layer composite vacuum cup as claimed in claim 2, wherein the step S9 of welding the stainless steel middle layer liner (2) on the titanium liner (1) comprises the following steps: and pressing the mouth part of the titanium inner container (1) to the mouth part of the stainless steel middle-layer inner container (2), and welding the stainless steel middle-layer inner container (2) on the titanium inner container (1).
7. The manufacturing method of a titanium liner three-layer composite vacuum cup as claimed in claim 1, characterized in that: in the step S9, the thickness of the heat-insulating layer is 0.05 mm-2 mm, the stainless steel middle-layer liner (2) protrudes inwards or the titanium liner (1) protrudes outwards, and the stainless steel middle-layer liner (2) and the titanium liner (1) are tightly matched through the protruding part.
8. The manufacturing method of the titanium liner three-layer composite vacuum cup as claimed in claim 1, wherein: in the step S9, the thickness of the heat-insulating layer is 0.01 mm-0.05 mm, and the stainless steel middle layer inner container (2) protrudes outwards or the titanium inner container (1) protrudes inwards to form an air guide groove.
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| CN113827087B (en) * | 2021-09-29 | 2023-04-07 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum cup with inner titanium and outer stainless steel |
| CN114619208B (en) * | 2022-03-16 | 2022-11-29 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum cup with inclined head |
| CN115122047B (en) * | 2022-06-15 | 2023-12-19 | 浙江飞剑工贸有限公司 | Manufacturing method of inner titanium and outer stainless steel vacuum heat-preserving container |
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Denomination of invention: A manufacturing method for a three-layer composite insulation cup with a titanium inner liner Effective date of registration: 20230425 Granted publication date: 20221202 Pledgee: Agricultural Bank of China Limited Yongkang sub branch Pledgor: ZHEJIANG FEIJIAN INDUSTRY & TRADE Co.,Ltd. Registration number: Y2023330000795 |