CN109627037B - Domestic ceramic connected with metal piece and manufacturing method thereof - Google Patents
Domestic ceramic connected with metal piece and manufacturing method thereof Download PDFInfo
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- CN109627037B CN109627037B CN201910061825.7A CN201910061825A CN109627037B CN 109627037 B CN109627037 B CN 109627037B CN 201910061825 A CN201910061825 A CN 201910061825A CN 109627037 B CN109627037 B CN 109627037B
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 122
- 239000002184 metal Substances 0.000 title claims abstract description 122
- 239000000919 ceramic Substances 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 56
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 53
- 229910052709 silver Inorganic materials 0.000 claims abstract description 52
- 239000004332 silver Substances 0.000 claims abstract description 52
- 229910000679 solder Inorganic materials 0.000 claims abstract description 34
- 238000007747 plating Methods 0.000 claims abstract description 30
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 27
- 235000015895 biscuits Nutrition 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 36
- 239000004480 active ingredient Substances 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 39
- 238000012360 testing method Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 17
- 230000008569 process Effects 0.000 description 16
- 235000000173 Camellia sinensis var sinensis Nutrition 0.000 description 14
- 240000007524 Camellia sinensis var. sinensis Species 0.000 description 14
- 238000005219 brazing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 230000007935 neutral effect Effects 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000007921 spray Substances 0.000 description 7
- 235000013305 food Nutrition 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 239000010963 304 stainless steel Substances 0.000 description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- GZMAAYIALGURDQ-UHFFFAOYSA-N 2-(2-hexoxyethoxy)ethanol Chemical compound CCCCCCOCCOCCO GZMAAYIALGURDQ-UHFFFAOYSA-N 0.000 description 2
- 229910017944 Ag—Cu Inorganic materials 0.000 description 2
- 241000409201 Luina Species 0.000 description 2
- 229910017309 Mo—Mn Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
- C04B2237/12—Metallic interlayers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention provides a daily ceramic connected with a metal piece and a manufacturing method thereof, wherein the daily ceramic connected with the metal piece comprises the following components: a ceramic body and a metal piece for daily use; the metal piece is coated with a nickel plating layer on the surface; a back silver layer is arranged at a part to be welded of the daily ceramic body, and a solder layer is printed on the surface of the back silver layer; the metal piece with the nickel plating layer coated on the surface is connected with the daily ceramic body through the solder layer; wherein the part to be welded is a biscuit and a glaze-free part. The invention also provides a manufacturing method of the daily ceramic connected with the metal piece. The invention realizes the firm connection between the domestic ceramic and the metal piece in the air atmosphere at low temperature, and reduces the welding difficulty and the welding cost.
Description
Technical Field
The invention relates to a domestic ceramic connected with a metal piece and a manufacturing method thereof, belonging to the technical field of domestic ceramics.
Background
Traditionally, domestic ceramic ware is pure ceramic material in most cases, and the forming process mainly adopts slip casting and roll forming. Limited by the molding process, the dimensional accuracy is low, the sintering process is easy to deform, the size and the shape are extremely unstable, and the material is difficult to directly connect with other materials through a mechanical structure. The ceramic and the metal are directly connected through the mechanical mechanism to be hard-connected, so that stress is easy to generate, and the ceramic is damaged, so that the ceramic is mainly connected in a mode of bonding by glue, namely, the ceramic is simply molded on the daily ceramic, the glue is coated, and other materials are placed on the glue for solidification and combination. The operation mode is easy to overflow glue, inconvenient to clean and attractive in appearance; the glue is easy to age, easy to lose efficacy in daily life and not resistant to high-temperature cooking.
Chinese patent CN 105036783B discloses a method of brazing ceramic and metal. According to the method, periodic or aperiodic open grooves are processed on the surface to be welded of the ceramic material, then active brazing filler metal is placed between the surfaces to be welded, and connection between the ceramic and the metal is achieved through a vacuum brazing method. The method relates to the field of structural ceramics, wherein the welding temperature is higher than 900 ℃, and the glaze of the domestic ceramics is easily softened and damaged at the temperature. Meanwhile, the active brazing material and the domestic ceramic are subjected to vacuum brazing at high temperature, and the active brazing material is still immature, so that the active brazing material only exists at the laboratory level, and the stress after welding is large, so that ceramic breakage is easy to cause. If the active brazing material is not adopted, the Mo-Mn vacuum plating film is adopted as a transition layer on the surface of the domestic ceramic, and then the non-active brazing material is brazed. The temperature of the Mo-Mn method is up to 1500 ℃, the daily ceramic glaze is not resistant, the glaze is damaged, and coating cannot be carried out. Therefore, the vacuum brazing process is not suitable for household ceramics.
Chinese CN 204950382U discloses a scald-proof functional cup, which relates to the technical field of daily necessities. The anti-scalding functional cup is divided into an upper part for containing hot water and a lower part for taking down, and the lower part is slow in heat transfer due to the fact that the lower part is made of materials, and plays a role in anti-scalding. The bottom of the anti-scalding functional cup adopts two magnets with different magnetism to realize the magnetic attraction combination of the upper part and the lower part, and can be easily separated. However, the form of magnetic attraction cannot achieve firm connection.
In summary, the connection between the domestic ceramic and the metal is only performed by means of gluing and magnetic attraction, and durable, reliable and firm connection cannot be realized. While the active brazing process is not mature, only at laboratory level. Therefore, a specific and effective scheme for realizing durable and firm connection of the domestic ceramic and the metal piece is not found.
Therefore, providing a novel domestic ceramic connected with a metal piece and a connecting process for firmly combining the domestic ceramic and the metal piece have become a technical problem to be solved in the art.
Disclosure of Invention
In order to solve the above-mentioned drawbacks and disadvantages, an object of the present invention is to provide a domestic ceramic to which a metal member is attached.
The invention also aims at providing a manufacturing method of the daily ceramic connected with the metal piece (a connecting process for firmly combining the daily ceramic and the metal piece).
To achieve the above object, in one aspect, the present invention provides a domestic ceramic connected with a metal piece, wherein the domestic ceramic connected with a metal piece includes: a ceramic body and a metal piece for daily use;
the metal piece is coated with a nickel plating layer on the surface;
a back silver layer is arranged at a part to be welded of the daily ceramic body, and a solder layer is printed on the surface of the back silver layer; the metal piece with the nickel plating layer coated on the surface is connected with the daily ceramic body through the solder layer;
wherein the part to be welded is a biscuit and a glaze-free part.
According to the specific embodiment of the invention, preferably, the domestic ceramic with the metal piece connected thereto further comprises a housing fixedly connected to the lower portion of the metal piece with the nickel plating layer coated on the surface.
Wherein the housing can be fixedly connected to the lower part of the metal piece with the surface coated with the nickel plating layer in a conventional manner in the art; in a specific embodiment of the invention, the shell can be fixedly connected to the lower part of the metal piece with the surface coated with the nickel plating layer through a screw; the shell can be made of plastic or metal (such as 304 stainless steel), and can be surface polished before use.
According to a specific embodiment of the present invention, preferably, the domestic ceramic with the metal piece attached thereto further comprises a LOGO bottom sheet fixedly attached to the bottom of the housing.
Wherein the LOGO backsheet may be fixedly attached to the bottom of the housing by means conventional in the art; in a specific embodiment of the invention, the LOGO bottom sheet can be fixedly connected to the bottom of the shell through a buckle; the LOGO backsheet used may be a food grade pc material.
According to the specific embodiment of the invention, preferably, the domestic ceramic with the metal piece connected thereto further comprises a metal bottom fixedly connected to the bottom of the LOGO bottom sheet.
Wherein the metal bottom can be fixedly connected to the bottom of the LOGO backsheet by means conventional in the art, and in a specific embodiment of the present invention, the metal bottom can be fixedly connected to the bottom of the LOGO backsheet by means of screws; the metal bottom can be 304 stainless steel metal bottom, which can be polished before use;
according to the specific embodiment of the invention, preferably, the domestic ceramic with the metal piece connected thereto further comprises a non-slip mat fixedly connected to the bottom of the metal bottom.
Wherein the anti-slip pad can be fixedly connected to the bottom of the metal bottom in a conventional fixing manner in the field, and in the specific embodiment of the invention, the anti-slip pad can be fixedly connected to the bottom of the metal bottom by dispensing; the anti-slip pad can be food grade silica gel;
according to a specific embodiment of the present invention, in the domestic ceramic to which the metal piece is attached, preferably, the back silver layer has a thickness of 6 to 8 μm.
According to the specific embodiment of the invention, in the domestic ceramic connected with the metal piece, the thickness of the nickel plating layer is preferably more than or equal to 5 mu m.
Wherein, after the metal piece subjected to chemical nickel plating in the step (3) is subjected to a 72h neutral salt spray test, the plating layer has no phenomena of bubbling, peeling and the like.
According to a specific embodiment of the present invention, in the domestic ceramic to which the metal piece is attached, preferably, the thickness of the solder layer is 0.25mm or less;
according to a specific embodiment of the present invention, in the domestic ceramic to which the metal member is connected, preferably, the material of the metal member includes aluminum alloy, stainless steel or copper.
On the other hand, the invention also provides a manufacturing method of the daily ceramic connected with the metal piece, wherein the manufacturing method comprises the following steps:
(1) Printing silver paste on a part to be welded, after the silver paste is leveled, feeding the domestic ceramic into a back silver furnace to carry out back silver at 850-900 ℃ so as to form a back silver layer on the part to be welded;
(2) Carrying out chemical nickel plating on the metal piece to be welded so as to coat a nickel plating layer on the surface of the metal piece to be welded;
(3) Printing a solder layer on the surface of the back silver layer in a dot matrix manner;
(4) After the metal piece to be welded, the surface of which is coated with the nickel plating layer, is fixed on the welding layer, the obtained product is sent into a reflow soldering furnace to be welded at 260-300 ℃, and the product is cooled and discharged from the furnace after the welding is finished.
According to a specific embodiment of the present invention, in the manufacturing method, preferably, before printing the silver paste on the portion to be soldered, the manufacturing method further includes:
polishing the part to be welded of the domestic ceramic to make the part to be welded flat and smooth, cleaning the surface of the part to be welded, and drying.
According to the specific embodiment of the invention, in the manufacturing method, the roughness of the polished part to be welded is preferably less than or equal to 3.2.
According to a specific embodiment of the invention, in the manufacturing method, preferably, the silver content is greater than or equal to 75% based on 100% of the total weight of the silver paste.
According to a specific embodiment of the present invention, in the production method, preferably, the printing thickness of the silver paste is not less than 18. Mu.m.
The time used for leveling the silver paste in the step (2) is not specifically required, and can be reasonably set by a person skilled in the art according to actual operation needs as long as the purpose of leveling the silver paste can be realized; in the specific embodiment of the invention, the leveling time of the silver paste can be 30min.
According to a specific embodiment of the present invention, in the manufacturing method, preferably, the silver-back time is 30-50min; in an embodiment of the present invention, the silver back time may be, for example, 40min.
According to a specific embodiment of the present invention, in the manufacturing method, preferably, the solder is a low Wen Xiji solder containing no active ingredient.
Wherein the low Wen Xiji solder without active ingredient is a conventional material, which can be obtained commercially or by laboratory preparation; in a specific embodiment of the present invention, the low Wen Xiji solder without active ingredients may be: sn-Bi system, sn-Cu system, sn-Ag system, and Sn-Ag-Cu system.
According to a specific embodiment of the present invention, in the manufacturing method, preferably, the welding time is 15-30min; in a specific embodiment of the present invention, the welding time may be, for example, 20 minutes.
Wherein, in the step (4), the welding process adopts multi-stage program temperature control, and after the welding is finished, the welding process is cooled and discharged from the furnace through program temperature control.
The drawing force for separating the metal piece from the daily ceramic in the daily ceramic connected with the metal piece obtained by the invention is up to 151.74kgf (tested by a universal material tensile tester), the daily ceramic piece is broken, and the welded metal piece does not fall off; the torque is as high as 24.00 N.m (tested by using a torque wrench).
The process for firmly combining the domestic ceramic and the metal piece fills the research blank of firmly connecting the domestic ceramic and the metal piece, solves the problem that the domestic ceramic cannot be connected with the metal piece by high-temperature vacuum brazing, realizes the firm connection of the domestic ceramic and the metal piece in the air atmosphere at low temperature (below 300 ℃), and reduces the welding difficulty and the welding cost; and through being connected with the metal, the combination of domestic ceramics and other materials is realized, and domestic ceramic products are more diversified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1A is a schematic structural diagram of a bone china tea cup with a metal piece according to embodiment 1 of the present invention;
fig. 1B is a schematic structural diagram of a bone china tea cup with a metal piece according to embodiment 2 of the present invention;
fig. 1C is a schematic structural diagram of a bone china tea cup with a metal piece according to embodiment 2 of the present invention;
fig. 2 is a specific process flow chart of a method for manufacturing a bone china tea cup with a metal piece according to embodiment 3 of the present invention;
FIG. 3 is a flow chart showing the process of making a bone china tea cup with a metal piece attached thereto in example 3 of the present invention;
fig. 4A to fig. 4B are respectively comparative diagrams of the bone china teacup with the metal piece according to the embodiment 1 of the present invention before and after the 72 hour neutral salt spray test;
fig. 5A-5B are respectively a comparison chart of the bone china teacup with the metal piece connected according to the embodiment 1 of the present invention before and after 2 cycle tests of cold and hot impact;
fig. 6A-6B are graphs showing the effects of the bone china teacup with metal parts connected to the bone china teacup according to embodiment 1 of the present invention after the drawing force test and the torque test;
fig. 7 is a graph showing the pulling force of separating the metal piece from the bone china teacup body in the bone china teacup with the metal piece according to the embodiment 1 of the present invention;
fig. 8 is a graph showing the comparison of drawing force after welding (corresponding to 0h in the figure), after a neutral salt spray test (corresponding to 72h NSS in the figure) for 72h, and after 2 cycles of cold and hot impact (corresponding to Thermal Cycle Test in the figure) in example 3 of the present invention;
fig. 9 is a graph showing torque comparison after welding (corresponding to 0h in the figure), after a 72h neutral salt spray test (corresponding to 72h NSS in the figure), and after 2 cycles of cold and hot impact (corresponding to Thermal Cycle Test in the figure) in example 3 of the present invention.
The main reference numerals illustrate:
1. bone china teacup body;
2. a part to be welded;
3. a back silver layer;
4. a solder layer;
5. a metal piece;
6. a housing;
7. a LOGO backsheet;
8. a metal bottom;
9. an anti-slip mat.
Detailed Description
In order to make the technical features, objects and advantageous effects of the present invention more clearly understood, the technical aspects of the present invention will now be described in detail with reference to the following specific examples, but should not be construed as limiting the scope of the present invention.
Example 1
The present embodiment provides a bone china tea cup with a metal piece, the structure of which is shown in fig. 1A, and as can be seen from fig. 1A, the bone china tea cup with a metal piece includes:
bone china teacup body 1 and metal piece 5;
the metal piece 5 is a metal piece with a nickel plating layer coated on the surface;
the bone china teacup comprises a bone china teacup body 1, a welding material layer, a back silver layer 3, a solder layer 4 and a solder layer, wherein the back silver layer 3 is arranged at a part 2 to be welded of the bone china teacup body; the metal piece with the nickel plating layer coated on the surface is connected with the bone china teacup body 1 through the solder layer 4;
wherein the part to be welded is a biscuit and a non-glaze part;
in this embodiment, the thickness of the back silver layer is 6 μm; the thickness of the nickel plating layer is 5 mu m; the thickness of the solder layer is 0.10mm; the metal piece is made of aluminum alloy and is 6063 in brand.
Example 2
The present embodiment provides a bone china tea cup with a metal piece, and a schematic structural diagram of the bone china tea cup with the metal piece is shown in fig. 1B and fig. 1C, and as can be seen from fig. 1B and fig. 1C, the bone china tea cup includes:
bone china teacup body 1, metal piece 5, shell 6, LOGO negative 7, metal bottom 8 and anti-slip pad 9;
the metal piece 5 is a metal piece with a nickel plating layer coated on the surface;
a back silver layer is arranged at a part to be welded of the bone china teacup 1 body, and a solder layer 4 is printed on the surface of the back silver layer; the metal piece with the nickel plating layer coated on the surface is connected with the bone china teacup body 1 through the solder layer 4;
wherein the part to be welded is a biscuit and a non-glaze part;
the shell (decoration effect) is fixedly connected to the lower part of the metal piece with the surface coated with the nickel plating layer through a screw; the shell is made of 304 stainless steel, and can be subjected to surface polishing before use;
the LOGO bottom plate is fixedly connected to the bottom of the shell through a buckle; the LOGO negative film is made of food-grade pc material;
the metal bottom is fixedly connected to the bottom of the LOGO negative plate through a screw; the metal bottom is 304 stainless steel metal bottom, which can be polished before use;
the anti-slip pad is fixedly connected to the bottom of the metal bottom through dispensing; the anti-slip pad is food grade silica gel;
in this embodiment, the thickness of the back silver layer is 8 μm; the thickness of the nickel plating layer is 5 mu m; the thickness of the solder layer is 0.15mm; the metal piece is made of aluminum alloy, stainless steel or copper.
Example 3
The embodiment provides the method for manufacturing the bone china tea cup with the metal piece (namely, the process of firmly combining the bone china tea cup with the metal piece) in embodiment 1, wherein the process flow chart of the process is shown in fig. 2, the schematic diagram of the welding process is shown in fig. 3, and the method comprises the following steps from fig. 2 to fig. 3:
1. the bone china teacup with the unglazed bottom is selected, inverted, and polished to be flat by a positioning jig and a polishing grinding wheel, and cleaned and dried for later use.
2. The silver paste with 86wt% silver content is selected, the silver paste is printed on the bottom of the teacup by adopting a silk screen and polished and leveled, and the thickness of the silver paste printed is more than or equal to 18 mu m (18 mu m in the embodiment). After 30min, leveling the silver paste after printing, and feeding the printed teacup into a back silver furnace for back silver to form a back silver layer. The back silver furnace is controlled by seven sections of programs, the back silver temperature is 855 ℃, and the back silver time is 40min. And discharging the teacup after silver backing, and cooling for later use.
3. And (3) carrying out chemical nickel plating on the machined metal piece, wherein the thickness of the plating layer is 5 mu m.
4. And (3) carrying out solder printing on the bottom of the teacup after silver backing by adopting a steel mesh to form a solder layer, wherein a solder system is low Wen Xiji solder without active ingredients, and the solder is printed in a dot matrix shape, and the printing height is less than or equal to 0.25mm.
The low Wen Xiji solder containing no active ingredient used in this example was: the Sn-Ag-Cu system solder comprises the following components in percentage by weight based on 100 percent of the total weight of the low Wen Xiji solder without active ingredients: the SnAgCu content is 88.5wt% (CAS number of Sn: 7440-31-5, CAS number of Ag: 7440-22-4, CAS number of Cu: 7440-50-8), the rosin content is 3.6wt% -5.4wt% (CAS number: 8050-09-7), and the solvent (diethylene glycol monohexyl ether) content is 1.8wt% -3.6wt% (CAS number: 112-59-4) and the additive is a trace amount.
5. And (3) placing the metal piece subjected to chemical nickel plating above the bottom of the teacup after printing the solder, and sending the metal piece into a reflow oven for welding after fixing by using the jig. The temperature of the welding furnace is controlled by a multi-stage program, the welding temperature is 265 ℃, and the welding time is 20min. And discharging the daily bone china tea cup from the furnace, and finishing welding after cooling to obtain the bone china tea cup connected with the metal piece.
In the bone china teacup connected with the metal piece, the pulling force for separating the metal piece from the teacup is up to 151.74kgf, and the Torque (Torque) is up to 24.00 N.m; the effect graphs of the bone china teacup connected with the metal piece provided in the embodiment 1 after the pulling force test and the torque test are shown in fig. 6A-6B respectively; the drawing force graph of the metal piece in the bone china teacup connected with the metal piece and the bone china teacup body provided in the embodiment 1 is shown in fig. 7; the torque data of the bone china cup with the attached hardware is shown in table 1 below.
TABLE 1
The bone china teacup connected with the metal piece is subjected to a neutral salt spray test for 72 hours, 2 cycles of cold and hot impact (boiling water for 30 minutes, putting into a freezing box at-20 ℃ for freezing for 3 hours, taking out, and recovering to room temperature) and then subjected to a drawing force and torsion test.
Wherein, the comparison diagrams of the bone china teacup connected with the metal piece before and after the 72-hour neutral salt spray test are respectively shown in fig. 4A-4B; the comparison diagrams before and after 2 cycle tests of cold and hot impact of the bone china teacup connected with the metal piece are respectively shown in fig. 5A-5B; in the embodiment of the invention, the drawing force comparison graph after welding (corresponding to 0h in the graph), after the neutral salt fog test (corresponding to 72h NSS in the graph) and after 2 cycles of cold and hot impact (corresponding to Thermal Cycle Test in the graph) is shown in FIG. 8; in the embodiment of the invention, torque comparison graphs after welding (corresponding to 0h in the graph), after neutral salt spray testing (corresponding to 72h NSS in the graph) and after 2 cycles of cold and hot impact (corresponding to Thermal Cycle Test in the graph) are shown in FIG. 9.
The test results above show that: the surface of the welded metal piece has no bulge and peeling phenomenon, and the drawing force value and the torque value have similar fluctuation amplitude and little difference compared with the data before untreated.
The bone china cup to which the metal piece was attached obtained in this example was subjected to a simulated liquid migration test with reference to the specifications of the metal material and the product for food contact in national food safety standard of GB 4806.9-2016, wherein simulated liquid migration result data are shown in table 2 below.
TABLE 2
As can be seen from table 2, the welded samples obtained in this example meet the requirements of the corresponding regulations for food contact materials.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical features and the technical features, the technical features and the technical invention can be freely combined for use.
Claims (14)
1. The manufacturing method of the daily ceramic connected with the metal piece is characterized by comprising the following steps of:
(1) Printing silver paste on a part to be welded of the daily ceramic, and after the silver paste is leveled, feeding the daily ceramic into a back silver furnace to 850-900 a o Carrying out back silver under the condition of C so as to form a back silver layer at the part to be welded; wherein, the printing thickness of the silver paste is more than or equal to 18 mu m;
(2) Carrying out chemical nickel plating on the metal piece to be welded so as to coat a nickel plating layer on the surface of the metal piece to be welded;
(3) Printing a solder layer on the surface of the back silver layer in a dot matrix manner;
(4) After the metal piece to be welded with the nickel coating on the surface is fixed on the solder layer, the obtained product is sent into a reflow furnace for 260-300 o C, welding, cooling and discharging after welding is finished to obtain the daily ceramic connected with the metal piece;
wherein, be connected with domestic ceramics of metalwork includes: a ceramic body and a metal piece for daily use;
the metal piece is coated with a nickel plating layer on the surface;
a back silver layer is arranged at a part to be welded of the daily ceramic body, and a solder layer is printed on the surface of the back silver layer; the metal piece with the nickel plating layer coated on the surface is connected with the daily ceramic body through the solder layer; wherein the thickness of the back silver layer is 6-8 mu m;
wherein the part to be welded is a biscuit and a glaze-free part.
2. The method of claim 1, further comprising, prior to printing the silver paste on the area to be soldered:
polishing the part to be welded of the domestic ceramic to make the part to be welded flat and smooth, cleaning the surface of the part to be welded, and drying.
3. The method according to claim 2, wherein the roughness of the polished part to be welded is less than or equal to 3.2.
4. The method according to any one of claims 1 to 3, wherein the silver content is not less than 75% based on 100% by weight of the total silver paste.
5. A method of manufacture according to any one of claims 1 to 3, wherein the back silver time is 30 to 50 minutes.
6. A method of manufacturing as claimed in any one of claims 1 to 3 wherein the solder is a low Wen Xiji solder free of active ingredients.
7. A method of manufacture according to any one of claims 1 to 3, wherein the welding time is 15 to 30 minutes.
8. The method according to any one of claims 1 to 3, wherein the domestic ceramic to which the metal piece is attached further comprises a housing fixedly attached to a lower portion of the metal piece whose surface is coated with the nickel plating layer.
9. The method of claim 8, wherein the ceramic piece attached to the ceramic piece further comprises a LOGO bottom sheet fixedly attached to the bottom of the housing.
10. The method of claim 9, wherein the ceramic article further comprises a metal base fixedly attached to the bottom of the LOGO backsheet.
11. The method of claim 10, wherein the ceramic for daily use with the metal piece attached thereto further comprises an anti-slip pad fixedly attached to the bottom of the metal base.
12. The method according to any one of claims 1 to 3, wherein the nickel plating layer has a thickness of 5 μm or more.
13. A method of manufacture as claimed in any one of claims 1 to 3 wherein the solder layer has a thickness of 0.25mm or less.
14. A method according to any one of claims 1 to 3, wherein the metal member comprises an aluminium alloy, stainless steel or copper.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032817A (en) * | 2017-05-27 | 2017-08-11 | 烟台柳鑫新材料科技有限公司 | A kind of new ceramics base copper-clad plate and preparation method thereof |
| CN209685623U (en) * | 2019-01-23 | 2019-11-26 | 北京小罐茶业有限公司 | A kind of domestic ceramics being connected with metalwork |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032817A (en) * | 2017-05-27 | 2017-08-11 | 烟台柳鑫新材料科技有限公司 | A kind of new ceramics base copper-clad plate and preparation method thereof |
| CN209685623U (en) * | 2019-01-23 | 2019-11-26 | 北京小罐茶业有限公司 | A kind of domestic ceramics being connected with metalwork |
Non-Patent Citations (1)
| Title |
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| 强颖怀 主编， 中国矿业大学出版社.《材料表面工程技术》.2016,(第1版),第54页. * |
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