WO2008034282A1

WO2008034282A1 - A cooking pot

Info

Publication number: WO2008034282A1
Application number: PCT/CN2006/002389
Authority: WO
Inventors: Guohua Wang
Original assignee: Guohua Wang
Priority date: 2006-09-14
Filing date: 2006-09-14
Publication date: 2008-03-27

Abstract

A cooking pot includes a pot bottom, a pot side and a handle or a lug welded or riveted together. The pot bottom is made up of five layers, that is, a basal body layer, two embedded layers arranged at the both sides of the basal body layer respectively, and two nanometer deposites arranged at the outsides of the embedded layers respectively. The material of the basal body can be steel, Cu, Al or alloy made up of the said materials.

Description

Cookware technology

The invention relates to a metal kitchen utensil, in particular to an electrochemical method obtained with good corrosion resistance, internal stress 氐, low embrittlement, good thermal conductivity, wear resistance, non-toxicity, heat storage and good gloss. Potware. Background technique

In the industry based on the needs of the kitchenware market, in order to make the kitchen utensils more beautiful, practical and superior in performance, the traditional iron and aluminum kitchen utensils are gradually replaced by various new kitchen utensils. The stainless steel kitchen utensils are beautiful, bright, wear-resistant and corrosion-resistant. The preferred substrate for kitchenware. At the same time, the heat conduction, heat storage and magnetic permeability difference of stainless steel have become an important defect of stainless steel kitchen utensils, especially when applied to pots, and the above defects are more obvious. In order to make up for the defects of the magnetic permeability and thermal conductivity of stainless steel, a ceramic material with a heat-conducting and heat-storing property such as copper or aluminum is generally used as a composite bottom. However, the pot with stainless steel as the base material still can not completely solve the problem of magnetic permeability of the pot body, which is suitable for the new generation of cooker-electromagnetic furnace which is becoming more and more popular. The heat conduction and heat storage performance are improved only by partial (bottom) with the composite bottom process. At the same time, the manufacturing cost has risen sharply, and a set of high-quality stainless steel composite bottom pots often cost hundreds of dollars.

Therefore, under the premise of maintaining the beautiful, bright, wear-resistant and corrosion-resistant performance of the kitchen utensils, the new materials and new technologies make the kitchen utensils also have the qualities of heat conduction, heat storage and magnetic permeability, which become the cravings of the market and have broad application. prospect.

It can be seen that the above-mentioned existing metal kitchen utensils, especially the pots, obviously still have inconveniences and defects, and need to be further improved. In view of the defects of the above-mentioned existing pots, the inventors have actively researched and innovated based on the practical experience and professional knowledge of designing and manufacturing such products for many years, in order to create a new pot. , can improve the defects of the existing existing pots, making it more practical. After continuous research, design, and repeated trials of samples and improvements, the invention has finally been created with practical value. Summary of the invention

The object of the present invention is to overcome the defects of the existing pots and provide a new type of knot. The technical problem to be solved is that it has a strong adhesion nano-deposited layer, which can simultaneously have the properties of wear resistance, corrosion resistance, heat conduction and heat storage, and good magnetic permeability, thereby being more suitable for practical use.

The technical problems of the present invention and solving the technical problems are achieved by the following technical solutions. According to the present invention, a pot includes a bottom and a pot, wherein the bottom of the pot is a layered composite structure, the layered composite structure comprises: a base layer; and two implant layers are respectively located on both sides of the base And two nano-deposited layers, respectively, outside the implant layer described above.

The object of the present invention and solving the technical problems thereof are further achieved by the following technical measures.

In the above-mentioned pot, wherein the pot is a layered composite structure, the layered composite structure comprises: a base layer; two implant layers respectively located on both sides of the base; and two nano-deposited layers, respectively located in the above-mentioned plant Beyond the layer.

The aforementioned cookware further includes a lid.

In the above-mentioned pot, the outer side of the pot is symmetrically provided with two pot ears. In the above-mentioned pan, the base layer is a metal plate layer composed of an alloy formed of steel, copper, aluminum or a combination of the above materials.

The object of the present invention and solving the technical problems thereof are also achieved by the following technical solutions. A wok according to the present invention has a pot body, the pot body is a layered composite structure, the layered composite structure comprises: a base layer; two implant layers, respectively located on both sides of the base; and two nanometers The deposited layers are located outside of the implant layers described above.

In the aforementioned wok, the outer side of the pot body is provided with a pot handle.

In the aforementioned wok, the outer side of the pot body is further provided with a pot ear, and the pot ear is symmetrically arranged with the above-mentioned pot handle.

With the above technical solution, the pot of the present invention has at least the following advantages:

Since the invention has a multi-layer composite structure, the pot has excellent heat conduction, heat storage and magnetic permeability, which fundamentally overcomes the shortcomings of the existing stainless steel kitchen utensils, and is more suitable for a new generation of cooker-electromagnetic furnace.

In addition, due to the presence of an implant layer and a nano-deposited layer outside the substrate layer, the pot improves the surface properties of substrates such as steel, copper and aluminum, which are not only non-toxic, wear-resistant, glossy to mirror, and A strong protective mold is added to the surface to prevent contamination by water, mold, acid and alkali liquid, and dust, which is easier to clean and greatly improves the cooking environment. In summary, the pot of the special structure of the invention has a strong adhesion nano-deposited layer, and can have the functions of wear resistance, corrosion resistance, heat conduction and heat storage, and good magnetic permeability, so that it is more suitable for practical use. It has many advantages and practical values as described above, and it has no similar structural design published in the same kind of products. It is truly innovative, and it has great improvement in structure or function. Great progress, and has produced a good and practical effect, and has more enhanced effects than the existing pot, which is more suitable for practical use, and has extensive use value of the industry, sincerely a novel, progressive, practical New design.

The above description is only an overview of the technical solutions of the present invention, and the technical means of the present invention can be more clearly understood and implemented in accordance with the contents of the specification. Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Specific embodiments of the present invention are given in detail by the following examples and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a preferred embodiment of the pan of the present invention.

Figure 2 is a schematic view showing the structure of the wok of the present invention.

Figure 3 is a schematic view of a layered composite structure of an embodiment of the present invention.

4 is an electron micrograph of a layered composite structure of an embodiment of the present invention.

Fig. 5 is an electron micrograph of a nano-deposited layer of a layered composite structure of an embodiment of the present invention. Fig. 6 is a photograph of a particle electron diffraction of a nano-deposited layer of the present invention.

Figure 7 is an energy spectrum of the nano-deposited layer of the present invention. The best way to achieve the invention

In order to further explain the technical means and efficacy of the present invention for achieving the intended purpose of the present invention, the metal kitchen utensil and the manufacturing method thereof according to the present invention, the specific embodiment, structure and manufacturing method thereof are described below with reference to the accompanying drawings and preferred embodiments. , steps, features and their effects, as detailed below.

Please refer to FIG. 1 and FIG. 3, which are schematic views of a preferred embodiment of the present invention and a schematic view of a layered composite structure. The preferred embodiment is a pot, which is a steel container having a pot bottom 1 brazed with a steel plate or a copper plate or an aluminum plate or a combination thereof; the pot 2 is connected to the bottom 1 of the pan and is equipped with a solder joint Or riveted handle or pot ear 3. The bottom 1 of the pan is a five-layer laminated composite structure including a base layer 11; two layers of implant layers 12 respectively located on both sides of the base layer; and two layers of nano-deposited layers 13, They are located outside of the implant layer 12 described above. The material of the base layer 11 described above is an alloy formed by a combination of steel, copper, aluminum or the above materials.

The implant layer 12 is formed by electrochemically implanting nickel molecules between the layers of the substrate layer 11, and the physical properties are between the base layer 11 and the nano-deposited layer 13, and the function is to deposit nano-deposits. The layer 11 is tightly bonded to the base layer 11 and forms a transition zone of physical properties between the base layer 11 and the nano-deposited layer 13, thereby eliminating stress concentration, stress and high temperature between the base layer 11 and the nano-deposited layer 13. The nano-deposited layer 13 does not peel off.

007-0. 007% ; 铁 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2-1. 4% ; sulfur 0. 02-0. 04%; 0. 0003-0. 0006%; lead 0. 0003-0. 0006%. The nano-deposited layer 13 has a particle size of less than 45 nm. Color silvery white yellow; specific gravity 9. Og / cm ³ , atomic weight 60. 69-63. 88; atomic order 29-35; melting point greater than 1800 ° C; tensile strength greater than 500 Mpa; wear resistance greater than 35 TWI; 4. 0%; hardness 400-600HV; corrosion resistance: salt spray test face greater than 1000 hours; oxidation resistance: chemical stability at atmospheric temperature, oxidation and color change at 700 °C. Easy to polish into mirror surface; good flexibility; argon welding, soldering; internal stress 0- 50Mpa; good processability.

For the purpose of better use or better, the above-mentioned pot 2 also adopts the same five-layer laminated composite structure as the bottom 1 of the pot. There are two handles or pot ears 3, which are symmetrically disposed on the outer side of the pot 2, so that the pot is easy to handle during use. The pan may also include a lid 4 for covering the pan to provide a wider range of use.

Please refer to FIG. 2, which is a schematic structural view of the wok set forth in the present invention. It has a pot body 21 which is a layered composite structure which is the same as the layered composite structure described in the above embodiment; a pot handle 22 is provided outside the pot body 21; The pot handle 22 is symmetrically disposed with a pot ear 23 on the outside of the pot body 21.

The manufacturing method of the pan according to the present invention mainly comprises the following steps:

1. The pot body is formed. The material is made of SPCD 5 1. 5 steel plate to make the pot; Q235 5 3 steel plate is used as the raw material to make the composite pot bottom; the shape is formed into a pot by the press; then it is expanded by the press; then the edge is cut by the press; Frequency brazing, forming a composite pot bottom; forming the entire pot body in the bottom turning and chamfering along the pot; surface cleaning and sand blasting of the pot body, the standard is no rust, no oil.

2. Nano-depositing, nano-depositing on both the inner and outer surfaces of the pot. The pot of the invention The nano-deposition is realized by electroplating method, and the composition of the electroplating solution is: using nickel sulfamate as the main liquid boric acid

PH value stabilizer; sulfamic acid is the main agent for lowering the pH value; nickel carbonate is the main agent for increasing the pH value; pure nickel with a purity greater than 99.99% is selected as the target; the circulation rate of the bath is controlled to ensure the groups of the bath The ion concentration of the fraction is uniform.

Electroplating operating conditions:

1 bath temperature 10 - 60 ° C

2 PH value 3. 5 - 4. 5

3 bath nickel ion concentration 70 - 90g / L

4 bath circulation rate 5 - 12 times / hour

5 workpiece pickling decontamination and degreasing

6 deposition current density 1 - 1. 5ASD

7 deposition thickness is 100 - 300um

3, the surface is polished;

4, assembly handles, lifting ears, with cover.

The pot formed according to the above method was tested on the layered composite structure, and the results were as follows: Test method:

The surface of the vertical steel plate coating of J0-780 type EDM machine was used to cut the thickness of 0. 2 hidden test piece, ground to a thickness of 100 μm, and then ion thinned until the center of the sample was perforated. The observation of the structure and the electron diffraction phase were carried out on a Hitachi H-800 transmission electron microscope, and the composition was measured using a Phillips PV900 spectrometer. The transmission electron microscope has an accelerating voltage of 150 kV.

Test Results:

Referring to Figure 4, there is an electron micrograph of the layered composite structure of the present invention. It can be seen that there is a three-layer structure in which the black portion is the base layer, the gray portion outside the base layer is the implant layer, and the implant layer is the nano-deposited layer.

Referring to Figure 5, it is an electron micrograph of the nano-deposited layer. Its microstructure is granular, measured by a ruler, and the particle size is between 25 - 60 nm.

See Figure 6 for a particle electron diffraction photograph of a nano-deposited layer. Electron diffraction index calibration and lattice constant calculations show that these nanoscale particles are Ni-solids of face-centered cubic structure.

Please refer to FIG. 7, which is an energy spectrum of the nano-deposited layer of the present invention. Quantitative analysis of its components Fruit is (% by weight): Ni: 99. 90%; Si: 0. 10°/. .

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, any The skilled person can make some modifications or modifications to the equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention, but without departing from the technical solution of the present invention, according to the present invention. It is still within the scope of the technical solution of the present invention to make any simple modifications, equivalent changes and modifications to the above embodiments. Industrial applicability

The pot of the present invention employs a five-layered layered composite structure comprising a base layer; two layers of implanted layers, respectively located on either side of the base layer; and two layers of nano-deposited layers, respectively located outside of the implanted layer. The above-mentioned base material t is an alloy formed by a combination of steel, copper, aluminum or the above materials. The pot of the special structure of the invention has a strong adhesion nano-deposited layer, and can have the functions of abrasion resistance, corrosion resistance, heat conduction and heat storage, and magnetic permeability, so that it is more suitable for practical use.

Claims

Rights request

A pot, comprising a pot bottom and a pot top, wherein the bottom of the pot is a layered composite structure, the layered composite structure comprising:

Base layer

Two implant layers, respectively located on both sides of the substrate;

Two nano-deposited layers, respectively, are located outside of the implant layer described above.

2. The pan according to claim 1, wherein the pot is a layered composite structure, the layered composite structure comprising:

Base layer

Two implant layers, respectively located on both sides of the substrate;

3. A pan according to claim 1 or 2, further comprising a lid.

4. A pan according to claim 1 or 2, wherein the outer side of the pot is symmetrically provided with two pan ears.

.

The cookware according to claim 1 or 2, wherein the base layer is a metal plate layer composed of an alloy of steel, copper, aluminum or a combination of the above materials.

The carbon content of the composition of the nano-deposited layer is: more than 98.3%; cobalt 0. 2-15%; carbon; 0. 006-0. 01%; copper 0. 003-0. 007%; iron 0. 2-1. 4%; ^ 0. 02-0. 04%; 0. 0003-0. 0006%; lead 0 0003-0. 0006%.

The pot according to claim 1 or 1, wherein the layered composite structure is formed by electroplating, and the composition of the plating solution used is: using a gas-based nickel sulfonate as a main liquid Boric acid is a pH stabilizer; sulfamic acid is P as a low pH main agent; nickel carbonate is a pH-enhancing agent; pure nickel having a purity greater than 99.99% is used as a target; and the bath circulation rate is controlled to ensure a bath The ion concentration of each component of the liquid is uniform;

Electroplating operating conditions:

1 bath temperature 10 - 60. C

2 PH value 3. 5— 4. 5

3 bath nickel ion concentration 70 - 90g / L 4 bath circulation rate 5 - 12 times / hour

5 workpiece pickling decontamination and degreasing.

6 Deposition operation current density 1 - 1. 5ASD

7 Deposition thickness is 100 - 30 Oum.

8. A wok having a pot body characterized in that the pot body is a layered composite structure, the layered composite structure comprising:

Base layer

Two implant layers, respectively located on both sides of the substrate;

A wok according to claim 8, wherein said pot body is provided with a pan handle on the outside.

10. The wok according to claim 9, wherein the outer side of the pot body is further provided with a pot ear, and the pot ear is symmetrically disposed with the pot handle.