CN114770036A - Manufacturing method of high-performance composite pot and production system for processing pot - Google Patents
Manufacturing method of high-performance composite pot and production system for processing pot Download PDFInfo
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- CN114770036A CN114770036A CN202210327914.3A CN202210327914A CN114770036A CN 114770036 A CN114770036 A CN 114770036A CN 202210327914 A CN202210327914 A CN 202210327914A CN 114770036 A CN114770036 A CN 114770036A
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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
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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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/008—Machines comprising two or more tools or having several working posts
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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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/05—Cooking vessels
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- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a manufacturing method of a high-performance composite pot and a production system for processing the pot, wherein the manufacturing method comprises the steps of sequentially carrying out cold spraying titanium powder and hot spraying titanium oxide powder on the inner surface of the pot, and finally forming a titanium oxide layer with higher hardness on the inner surface of the pot, so that the pot has wear resistance; then, on the basis, the procedures of fine grinding, cleaning, vacuum ultraviolet pre-irradiation and carbon ion injection are sequentially carried out, so that the friction coefficient of the inner surface of the cookware is remarkably reduced, and the non-stick property of the surface is improved; in addition, the invention also provides a production system for processing the pot according to the manufacturing method. Compared with the cookware manufactured by the traditional method, the cookware manufactured by the invention has the advantages that the obtained cookware has good wear resistance and good non-stick performance, and meanwhile, compared with the traditional rolled composite material, the cookware is lower in manufacturing cost; in addition, the production system avoids manual carrying among the processes, saves manpower, shortens the production period, improves the production efficiency and can realize industrial large-scale mass production.
Description
Technical Field
The invention belongs to the technical field of manufacturing of kitchen supplies, and particularly relates to a manufacturing method of a high-performance composite pot and a production system for processing the pot.
Background
In recent years, with the gradual improvement of living standard of people, the non-stick pan gradually enters the life of common people. As the name suggests, the non-stick pan is a pan which can not stick to the bottom of the pan when cooking, the prior non-stick pan liner uses a non-stick coating to realize low adhesiveness and easy cleaning of the pan, common non-stick coatings are fluorine-containing compound coatings represented by Teflon (polytetrafluoroethylene) and ceramic coatings, the coatings are mostly coated by high-pressure spraying or electrostatic spraying and then cured by heating and heat preservation, and the defects are that the obtained coating has low bonding force and low surface hardness and is not wear-resistant, and the coating is easy to peel off due to overhigh use temperature and friction in the use process, thereby losing the non-stick property. Particularly, the teflon coating is a recognized carcinogenic substance, and the teflon coating can enter along with food after being peeled off to affect the health of a human body.
And the pan that does not use the coating is like the stainless steel pot, and its non-adhesion is relatively poor, and food often glues the pot influence experience sense during the use, and the stainless steel has heavy metal to appear after long-time the use simultaneously, harms the health. With the continuous scientific exploration, people find that titanium metal does not contain heavy metal and has antibacterial activity, therefore, titanium is regarded as a very good choice for cooking utensils and tableware, but pure titanium is low in hardness, poor in wear resistance and poor in heat conductivity, pans made of pure titanium are easy to scratch in the using process, meanwhile, the non-stick effect is poor in cooking food, and common titanium and titanium composite pans are made of raw materials which are usually rolled and compounded, and the surface performance of the titanium material cannot be changed. Therefore, how to improve the titanium surface hardness and the food non-stick performance of the titanium-containing composite pot is a technical problem to be solved urgently.
In addition, it is known that a plurality of processes including drawing, trimming, polishing, spraying, cleaning, and the like are required in a process for manufacturing a pot. Among the prior art, adopt relatively independent workshop to process to every process processing, the semi-manufactured goods after single process is accomplished need the manual work to shift to next process, the shortcoming has promoted the cost of labor, takes a lot of trouble hard, is unfavorable for large-scale production simultaneously.
In view of the above, the present inventors propose a method for manufacturing a high performance composite cookware and a production system for processing the cookware, so as to overcome the defects of the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a manufacturing method of a high-performance composite pot and a production system for processing the pot, and the manufacturing method can solve the technical problems that the surface of the existing coating pot is poor in wear resistance, a coating is easy to fall off, and the non-adhesion and wear resistance of the non-coating pot are poor; in addition, the production system reduces the connection cost between the working procedures, saves manpower, improves the production efficiency and is particularly suitable for large-scale production.
The purpose of the invention is solved by the following technical scheme:
a manufacturing method of a high-performance composite pot specifically comprises the following steps:
s1: stretching the pre-cut disc pot material to form a pot blank with a designed shape;
s2: performing mouth trimming treatment on the pot blank formed in the step S1 to remove redundant waste materials and obtain a pot blank with a designed size;
s3: polishing the inner and outer surfaces of the pot blank obtained in the step S2;
s4: performing sand blasting treatment on the inner surface of the pan blank polished in the step S3 to increase the roughness of the inner surface of the pan blank;
s5: performing cold spraying of titanium powder on the inner surface of the pot blank subjected to the sand blasting treatment in the step S4 to form a titanium base layer on the inner surface of the pot blank;
s6: performing thermal spraying titanium oxide powder on the inner surface of the pot blank subjected to the cold spraying treatment in the step S5 to form a titanium oxide layer on the surface of the titanium substrate for improving the surface hardness;
s7: carrying out fine grinding treatment on the inner surface of the pot blank subjected to the thermal spraying treatment in the step S6, wherein the roughness is required to be less than Ra 1;
s8: cleaning the pot blank subjected to the fine grinding treatment in the step S7, and airing;
s9: carrying out vacuum ultraviolet pre-irradiation on the inner surface of the pot blank cleaned in the step S8 for increasing the activity of the inner surface of the pot blank;
s10: and (5) injecting carbon ions into the inner surface of the pot blank subjected to vacuum ultraviolet pre-irradiation in the step (S9) to reduce the friction coefficient of the inner surface of the pot blank, so as to improve the non-stick performance of the inner surface of the pot blank, and finally, finishing the installation of the handle through machining holes to obtain the composite pot.
Further, the disks in the step S1 are aluminum disks, aluminum-based layer composite disks, or titanium-based layer composite disks.
Further, when the titanium powder is cold sprayed in the step S5, the adopted working gas is nitrogen or helium, and the spraying pressure is 4-6 Mpa; the grain diameter of the used titanium powder is 45-150 mu m, and the thickness of the formed titanium-based layer is 0.1-0.6 mm.
Further, when the titanium oxide powder is thermally sprayed in step S6, the particle size of the titanium oxide powder used is 15 μm to 45 μm, the thickness of the formed titanium oxide layer is 100 μm to 300 μm, and the thickness of the remaining titanium oxide layer after the finish polishing is greater than 50 μm.
Further, when the vacuum ultraviolet is pre-irradiated in the step S9, the pressure of the vacuum chamber is 10-4Pa～102Pa, and the pre-irradiation time of the ultraviolet is 15-25 min.
Further, when injecting the carbon ions in step S10, an electron cyclotron resonance type ion implanter is used, the acceleration voltage of the ions is 7.5 to 30kV, and the injection amount of the carbon ions is 3 × 1017/cm2～10×1017/cm2The depth of the carbon ion implantation is 0.3 to 1.2 μm.
Based on the manufacturing method, the production system comprises a material conveying belt, and the material conveying belt is sequentially arranged along the conveying direction of the material conveying belt at intervals:
the stretching device is used for stretching the wafer pot material to form a pot blank;
the opening rolling and cutting device is used for removing redundant waste materials at the opening of the pot blank;
an inner and outer polishing device for polishing the inner and outer surfaces of the pot blank;
the sand blasting device is used for increasing the roughness of the inner surface of the pot blank;
the cold spraying device is used for spraying titanium powder on the inner surface of the pot blank to form a titanium base layer;
the thermal spraying device is used for spraying titanium oxide powder on the inner surface of the pot blank to form a titanium oxide layer;
the fine polishing device is used for carrying out fine grinding on the inner surface of the pot blank so as to reduce the roughness;
the ultrasonic cleaning device is used for cleaning the pot blank;
the ultraviolet pre-irradiation vacuum device is used for increasing the activity of the inner surface of the pot blank;
the ion implantation device is used for improving the non-stick performance of the inner surface of the pot blank;
the material conveying belts are arranged side by side at intervals, the thermal spraying device is located at the joint of the two material conveying belts, and the rest devices are uniformly distributed on the outer sides of the two material conveying belts.
Further, the cold spraying device comprises a first operation mechanism, a cold spraying machine and a first control mechanism, wherein the first control mechanism is respectively connected with the first operation mechanism and the cold spraying machine;
the first operation mechanism comprises a cylindrical supporting platform and a driving motor for driving the cylindrical supporting platform to rotate, a plurality of stations for placing the pot blanks to be sprayed are annularly distributed on the cylindrical supporting platform, a servo motor for driving the pot blanks to be sprayed to rotate is arranged on each station, and the driving motor and the servo motor are both connected with a first control mechanism;
the cold spraying machine comprises a first feeding and conveying unit for containing titanium powder, a first spray gun unit for spraying the titanium powder to the inner surface of a pot blank by using high-pressure gas, a first carrier gas unit and an airflow pipeline which are communicated with the first spray gun unit and used for providing working protective gas for the first spray gun unit and assisting in conveying the titanium powder to the inner surface of the pot blank, and a first six-axis industrial robot for controlling the running track of the first spray gun unit, wherein the first spray gun unit and the first six-axis industrial robot are both connected with a first control mechanism.
Further, the thermal spraying device comprises a second operation mechanism, a thermal spraying machine and a second control mechanism, wherein the second control mechanism is respectively connected with the second operation mechanism and the thermal spraying machine;
the hot spraying machine adopts a plasma spraying machine and comprises a second feeding and conveying unit for containing titanium oxide powder, a second spray gun unit for spraying the titanium oxide powder to the inner surface of the pot blank by using plasma flame flow, a second carrier gas unit communicated with the second spray gun unit and used for providing protective gas for the second spray gun unit and assisting in conveying the titanium oxide powder to the inner surface of the pot blank, a powder conveying pipeline and a second six-axis industrial robot for controlling the running track of the second spray gun unit are arranged between the second feeding and conveying unit and the second spray gun unit, and the second spray gun unit and the second six-axis industrial robot are both connected with a second control mechanism;
when the second spray gun unit of the thermal spraying machine is a single station, the second operation mechanism and the first operation mechanism have the same structure; when the second spray gun unit of the thermal spraying machine is a double-station, the adjacent stations on the cylindrical supporting platform are connected by a belt, so that the synchronism of the two pot blanks during rotation is ensured.
Furthermore, the fine polishing device adopts a multi-station rotating disc type polishing machine, the polishing machine comprises a plurality of upper and lower workpiece stations distributed around a rotating disc, each upper and lower workpiece station is provided with a polishing station, and the polishing stations are used for installing polishing abrasive belts of different models and are used for circularly polishing the inner surface of the pot blank.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention relates to a manufacturing method of a high-performance composite pot, which comprises the steps of carrying out sand blasting treatment on the inner surface of an aluminum pot blank, and then carrying out cold spraying of titanium powder on the basis of the sand blasting treatment, thereby forming a titanium base layer on the inner surface of the pot blank, compared with a titanium-aluminum composite material produced by the traditional production process, the method has the advantage of high surface hardness, the surface hardness of the sprayed titanium base layer is 2 times of the surface hardness of the traditional rolled composite material and reaches 300HV, meanwhile, the thickness of the titanium base layer can be controlled according to the requirement by cold spraying, but rolling and compounding are difficult to realize, and in addition, the titanium oxide powder is thermally sprayed on the basis of the titanium base layer, so that a harder wear-resistant titanium oxide layer is formed, and the hardness of the inner surface of the pot blank reaches more than 600 HV; the invention further carries out vacuum ultraviolet pre-irradiation and carbon ion injection in sequence on the basis of the titanium oxide layer, on one hand, the activity of the inner surface of the pot blank is enhanced, and on the other hand, the friction coefficient of the inner surface is reduced, thereby improving the non-stickiness of the inner surface of the pot. In conclusion, the composite cooker with good wear resistance and good non-stick performance can be obtained by the method.
2. Based on the manufacturing method, the stretching device, the mouth hobbing device, the internal and external polishing device, the sand blasting device, the cold spraying device, the hot spraying device, the fine polishing device, the ultrasonic cleaning device, the ultraviolet pre-irradiation vacuum device and the ion injection device are sequentially connected in series through two material conveying belts, so that manual carrying among working procedures is avoided, labor is saved, the production period is shortened, the production efficiency is improved, and industrial large-scale mass production can be realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a flow chart of a manufacturing method of a high-performance composite cookware according to the present invention;
FIG. 2 is a schematic diagram of a production system of the high-performance composite cookware of the present invention;
FIG. 3 is a schematic structural view of a cold spraying device in the production system of the present invention;
FIG. 4 is a schematic view of a thermal spray apparatus in a production system;
fig. 5 is a schematic structural diagram of a fine polishing device in a production system.
Wherein: 1 is a stretching device; 2 is a mouth roll-cutting device; 3, an internal and external polishing device; 4, a sand blasting device; 5 is a cold spraying device; 6 is a thermal spraying device; 7, a fine polishing device; 8, an ultrasonic cleaning device; 9 is ultraviolet pre-irradiation vacuum device; 10 is an ion implantation device; 11 is a material conveying belt; reference numeral 51 denotes a first operation mechanism; 52 is a cold spray coater; 61 is a second operating mechanism; 62 is a thermal spraying machine; 71 is a workpiece loading and unloading station; 72 is a polishing station; 521 is a first feeding and conveying unit; 522 is a first spray gun unit; 523 is a first carrier gas unit; 524 is a gas flow line; 525 is a first six-axis industrial robot; 621 is a second feeding and conveying unit; 622 is a second spray gun unit; 623 a second carrier gas unit; 624 is a powder feeding pipeline; 625 is a second six-axis industrial robot.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1, the present invention provides a method for manufacturing a high performance composite cookware, which comprises the following steps:
s1: stretching the pre-cut disc pot material to form a pot blank with a designed shape;
specifically, the wafer pot material can be an aluminum wafer, an aluminum-based layered composite wafer or a titanium-based layered composite wafer
S2: performing mouth trimming treatment on the pot blank formed in the step S1 to remove redundant waste materials and obtain a pot blank with a designed size;
s3: polishing the inner and outer surfaces of the pot blank obtained in the step S2 to remove defects such as tensile lines and the like;
s4: performing sand blasting treatment on the inner surface of the pan blank polished in the step S3 to increase the roughness of the inner surface of the pan blank;
specifically, a sand blasting machine is used for carrying out sand blasting, the mixture of white corundum and silicon carbide is adopted for sand blasting, the grain size of sand grains is about 45 meshes, and the roughness of the inner surface of a pot blank after sand blasting is larger than Ra 4;
s5: performing cold spraying titanium powder on the inner surface of the pot blank subjected to the sand blasting treatment in the step S4 to form a titanium base layer on the inner surface of the pot blank;
specifically, when titanium powder is sprayed in a cold mode, the adopted working gas is nitrogen or helium, and the spraying pressure is 4-6 Mpa; the particle size of the used titanium powder is 45-150 mu m, and the thickness of the formed titanium base layer is 0.1-0.6 mm;
s6: performing thermal spraying titanium oxide powder on the inner surface of the pot blank subjected to the cold spraying treatment in the step S5 to form a titanium oxide layer on the surface of the titanium substrate for improving the surface hardness;
specifically, when the titanium oxide powder is thermally sprayed, the particle size of the used titanium oxide powder is 15-45 μm, the thickness of the formed titanium oxide layer is 100-300 μm, and the thickness of the residual titanium oxide layer after fine polishing is more than 50 μm.
S7: carrying out fine grinding treatment on the inner surface of the pot blank subjected to the thermal spraying treatment in the step S6, wherein the roughness is required to be less than Ra 1;
s8: cleaning the pot blank subjected to the fine grinding treatment in the step S7, and airing;
s9: carrying out vacuum ultraviolet pre-irradiation on the inner surface of the pot blank cleaned in the step S8 for increasing the activity of the inner surface of the pot blank;
specifically, the pressure in the vacuum chamber is 10 during the vacuum ultraviolet pre-irradiation-4Pa～102Pa, ultraviolet rayThe pre-irradiation time is 15-25 min;
s10: injecting carbon ions into the inner surface of the pot blank pre-irradiated by the vacuum ultraviolet rays in the step S9 to reduce the friction coefficient of the inner surface of the pot blank and improve the non-stick performance of the inner surface of the pot blank, preferably, adopting an electron cyclotron resonance type ion implanter, wherein the acceleration voltage of the ions is 7.5-30 kV, and the injection amount of the carbon ions is 3 multiplied by 1017/cm2～10×1017/cm2The implantation depth of the carbon ions is 0.3-1.2 μm; and finally, after the steps are finished, the handle is installed by machining and drilling, and the composite cooker is obtained.
As shown in fig. 2 to 5, based on the above manufacturing method, the present invention provides a production system of a high-performance composite pot, which includes a material conveying belt 11, and the material conveying belt 11 is sequentially provided with:
the stretching device 1 is used for stretching the wafer pot material to form a pot blank;
the opening rolling and cutting device 2 is used for removing redundant waste materials at the opening of the pot blank;
an inner and outer polishing device 3 for polishing the inner and outer surfaces of the pot blank;
the sand blasting device 4 is used for increasing the roughness of the inner surface of the pot blank;
the cold spraying device 5 is used for spraying titanium powder on the inner surface of the pot blank to form a titanium base layer;
the thermal spraying device 6 is used for spraying titanium oxide powder on the inner surface of the pot blank to form a titanium oxide layer;
the fine polishing device 7 is used for performing precision on the inner surface of the pot blank and reducing the roughness;
an ultrasonic cleaning device 8 for cleaning the pot blank;
the ultraviolet pre-irradiation vacuum device 9 is used for increasing the activity of the inner surface of the pot blank;
the ion implantation device 10 adopts an electron cyclotron resonance type ion implanter and is used for improving the non-stick performance of the inner surface of the pot blank;
the two material conveying belts 11 are arranged side by side at intervals, the thermal spraying device 6 is positioned at the joint of the two material conveying belts, and the rest devices are uniformly distributed on the outer sides of the two material conveying belts 11 so as to save space; the production system can adopt a flow production mode mainly based on manual work, and can also realize an automatic flow production mode with less manual participation by adding robots at the feeding and discharging ends of all the devices. The manufacturing of falling to the ground can be realized through the above arrangement, the connection cost between the processes is reduced, the manpower is saved, the production period is shortened, the production efficiency is improved, and the industrial large-scale mass production is facilitated.
The stretching device 1, the mouth rolling and cutting device 2, the internal and external polishing device 3, the sand blasting device 4, the ultrasonic cleaning device 8 and the ultraviolet pre-irradiation vacuum device 9 used in the production system are all adapted according to the specifications such as the shape, the material, the size and the like of a pot manufactured according to requirements, the structures are all the prior art, and the invention is not described in detail.
Specifically, as shown in fig. 3, the cold spray device 5 of the present invention includes a first operation mechanism 51, a cold spray applicator 52, and a first control mechanism, wherein the first control mechanism is connected to the first operation mechanism 51 and the cold spray applicator 52, respectively; the first operating mechanism 51 comprises a cylindrical supporting platform and a driving motor for driving the cylindrical supporting platform to rotate, a plurality of stations for placing the pot blanks to be sprayed are annularly distributed on the cylindrical supporting platform, a servo motor for driving the pot blanks to be sprayed to rotate is arranged on each station, and the driving motor and the servo motor are both connected with a first control mechanism; the cold spray coating machine 52 comprises a first feeding and conveying unit 521 for containing titanium powder, a first spray gun unit 522 for spraying titanium powder to the inner surface of a pot blank by using high-pressure gas, a first carrier gas unit 523 and a gas flow pipeline 524 which are communicated with the first spray gun unit 522 and are used for providing working protective gas for the first spray gun unit and assisting in conveying the titanium powder to the inner surface of the pot blank, and a first six-axis industrial robot 525 for controlling the running track of the first spray gun unit 522, wherein the first spray gun unit 522 and the first six-axis industrial robot 525 are both connected with a first control mechanism, namely whether the first spray gun unit 522 and the first six-axis industrial robot 525 are started or not is controlled by the first control mechanism. Preferably, the first feeding and conveying unit 521 has a preheating function, and the first spray gun unit 522 has a heavy weight, and is designed in a single path to be linked with the first operation mechanism 51 to realize continuous production.
When the cold spraying device 5 works, firstly, a pot blank to be sprayed is placed at a feeding station according to the station number of a cylindrical supporting platform, then a first control mechanism controls a driving motor to enable the cylindrical supporting platform to rotate to a working position, a first spray gun unit 522 is started, meanwhile, the first control mechanism controls a servo motor to start rotating the pot blank on the working station, a first six-axis industrial robot 525 starts to move according to a set running track to drive the first spray gun unit 522 to carry out spraying operation, after the track movement is finished, the robot returns to a safe position, the working station stops rotating, the cylindrical supporting platform rotates to convey the next pot blank to be sprayed to the working position, and cold spraying is carried out.
As shown in fig. 4, the thermal spraying apparatus 6 of the present invention includes a second operating mechanism 61, a thermal spraying machine 62, and a second control mechanism connected to the second operating mechanism 61 and the thermal spraying machine 62, respectively; when the thermal spraying machine 62 adopts a spray gun to perform single-station operation, the second operation mechanism 61 has the same structure as the first operation mechanism 51, and the description is omitted; the thermal sprayer 62 is a plasma sprayer or a supersonic flame sprayer, and plasma spraying is preferable because it has advantages of high flame temperature and concentrated stability, the structure comprises a second feeding and conveying unit 621 for containing titanium oxide powder, a second spray gun unit 622 for spraying the titanium oxide powder to the inner surface of the pot blank by plasma flame flow, a second carrier gas unit 623 which is communicated with the second spray gun unit 622 and is used for providing protective gas for the second spray gun unit and assisting in conveying titanium oxide powder to the inner surface of the pot blank, a powder conveying pipeline 624 is arranged between the second feeding conveying unit 621 and the second spray gun unit 622, and a second six-axis industrial robot 625 controlling the traveling locus of the second spray gun unit 622, the second spray gun unit 622 and the second six-axis industrial robot 625 are both connected to a second control mechanism, i.e., whether the second spray gun unit 622 and the second six-axis industrial robot 625 are activated or not, is controlled by the second control mechanism.
Preferably, in the embodiment, two spray guns are used for simultaneously operating on two stations, and the second operating mechanism 61 is different from the first operating mechanism 51 only in that a plurality of stations for placing pot blanks to be sprayed are annularly arranged on the cylindrical supporting platform, and adjacent stations are connected by a belt so as to ensure the synchronism of the two pot blanks during rotation; the instant heating spraying machine 62 and the matching design are in double-path operation and linked with the second operation mechanism 61, so that two pot blanks can be sprayed simultaneously, and the production efficiency is improved.
As shown in fig. 5, the fine polishing device 7 of the present invention employs a multi-station turntable type polishing machine, which includes a plurality of upper and lower workpiece stations 71 arranged around a turntable, each upper and lower workpiece station 71 is provided with a polishing station 72, and the polishing stations 72 are used for installing polishing abrasive belts (from coarse to fine) of different types for sequentially and circularly polishing the inner surface of the pot blank to realize fine grinding to reduce roughness.
To further verify the efficacy of the manufacturing method of the present invention, in conjunction with the production system, the inventors performed the following specific examples:
example 1
The preparation method of the frying pan with the length of 32cm comprises the following specific process flows:
1) an aluminum wafer having a diameter of 420mm and a thickness of 2mm was used, and the aluminum wafer was stretched using a 200T stretching apparatus 1 (stretcher) to form a pot blank having a designed shape.
2) The stretch-formed aluminum pot blank is cut off using the mouth hobbing device 2 to remove excess waste, and trimmed to form a pot blank of the designed dimensions.
3) And polishing the inner part and the outer part of the cut pot blank by using a rotary belt sander to remove defects such as tensile grains and the like.
4) And (3) carrying out sand blasting on the polished pot blank by using a sand blasting machine, wherein the sand blasting adopts a mixture of white corundum and silicon carbide, the grain size of sand grains is 45 meshes, and the surface roughness reaches Ra6 after the sand blasting is carried out.
5) And (3) spraying titanium powder on the inner surface of the pot blank subjected to sand blasting by using a cold spraying device 5 to form a titanium base layer, wherein the working gas is nitrogen during spraying, the working pressure is 5Mpa, the particle size of the selected titanium powder is 100 micrometers, and the thickness of the titanium base layer is 0.3 mm.
6) And (3) spraying titanium oxide powder on the inner surface of the pot blank subjected to cold spraying treatment by using plasma spraying equipment to form a titanium oxide layer, wherein the working gas is argon and hydrogen during spraying, the particle size of the titanium oxide powder is 30 microns, and the thickness of the titanium oxide layer is 250 microns.
7) And (3) performing fine polishing on the pot blank subjected to the thermal spraying treatment by using a rotary circulating abrasive belt until the roughness after polishing is less than Ra1, and the thickness of a titanium oxide layer after polishing is 60 mu m.
8) And carrying out ultrasonic cleaning on the finely polished pot blank.
9) Pre-irradiating the cleaned pot blank with vacuum ultraviolet to increase surface activity, and setting the pressure in the vacuum chamber to 10-2Pa, ultraviolet pre-irradiation time of 20 min;
10) injecting carbon ions into the pot blank subjected to vacuum ultraviolet pre-irradiation by using an ion injector, wherein the accelerating voltage of the ions is 20kV, and the injection amount of the carbon ions is 6 multiplied by 1017/cm2The depth of implantation of the carbon ions was 1 μm. And finally, punching the obtained pan blank by using a punching machine, and fixing the rivet and the handle on the pan blank body by using a riveting machine to obtain the frying pan.
Example 2
A28 cm frying pan is prepared, and the specific process flow is as follows:
1) an aluminum steel composite wafer with the diameter of 400mm and the thickness of 2mm is adopted, and a 200T stretching device 1 (a stretching machine) is used for stretching the aluminum steel composite wafer to form a pot blank with a designed shape.
2) The stretch-formed aluminum pot blank is cut off using the mouth hobbing device 2 to remove excess waste material and trimmed to form a pot blank of the design size.
3) And polishing the inner part and the outer part of the cut pot blank by using a rotary belt sander to remove defects such as tensile grains and the like.
4) And (3) carrying out sand blasting on the polished pot blank by using a sand blasting machine, wherein the sand blasting adopts a mixture of white corundum and silicon carbide, the grain size of sand grains is 50 meshes, and the surface roughness reaches Ra7 after the sand blasting is carried out.
5) And (3) spraying titanium powder on the inner surface of the pot blank subjected to sand blasting by using a cold spraying device 5 to form a titanium base layer, wherein the working gas is helium during spraying, the working pressure is 6MPa, the particle size of the selected titanium powder is 150 mu m, and the thickness of the titanium base layer is 0.6 mm.
6) And spraying titanium oxide powder on the inner surface of the pot blank subjected to the cold spraying treatment by using plasma spraying equipment to form a titanium oxide layer, wherein the working gas is argon and hydrogen during spraying, the particle size of the titanium oxide powder is 15 mu m, and the thickness of the titanium oxide layer is 100 mu m.
7) And (3) performing fine polishing on the pot blank subjected to the thermal spraying treatment by using a rotary circulating abrasive belt until the roughness after polishing is less than Ra1, and the thickness of a titanium oxide layer after polishing is 40 mu m.
8) And carrying out ultrasonic cleaning on the finely polished pot blank.
9) Pre-irradiating the cleaned pot blank with vacuum ultraviolet to increase surface activity, and setting the pressure in the vacuum chamber to 10-4Pa, ultraviolet pre-irradiation time of 15 min;
10) injecting carbon ions into the pot blank subjected to vacuum ultraviolet pre-irradiation by using an ion injector, wherein the accelerating voltage of the ions is 7.5kV, and the injection amount of the carbon ions is 3 multiplied by 1017/cm2The depth of implantation of carbon ions was 0.3 μm. And finally, punching the obtained pot blank by using a punching machine, and fixing the rivet and the handle on the pot blank by using a riveting machine to obtain the frying pot.
Example 3
The preparation method of the 26cm stockpot comprises the following specific process flows:
1) the titanium steel composite wafer with the diameter of 420mm and the thickness of 2mm is adopted, and the titanium steel composite wafer is stretched by using a 200T stretching device 1 (a stretching machine) to form a pot blank with a designed shape.
2) The stretch-formed aluminum pot blank is cut off using the mouth hobbing device 2 to remove excess waste material and trimmed to form a pot blank of the design size.
3) And polishing the inner part and the outer part of the cut pot blank by using a rotary belt sander to remove defects such as tensile grains and the like.
4) And (3) carrying out sand blasting on the polished pot blank by using a sand blasting machine, wherein the sand blasting adopts a mixture of white corundum and silicon carbide, the grain size of sand grains is 40 meshes, and the surface roughness reaches Ra5 after the sand blasting is carried out.
5) And (3) spraying titanium powder on the inner surface of the pot blank subjected to sand blasting by using a cold spraying device 5 to form a titanium base layer, wherein the working gas is nitrogen during spraying, the working pressure is 4Mpa, the particle size of the selected titanium powder is 45 mu m, and the thickness of the titanium base layer is 0.1 mm.
6) And (3) spraying titanium oxide powder on the inner surface of the pot blank subjected to cold spraying treatment by using plasma spraying equipment to form a titanium oxide layer, wherein the working gas is argon and hydrogen during spraying, the particle size of the titanium oxide powder is 45 mu m, and the thickness of the titanium oxide layer is 300 mu m.
7) And (3) performing fine polishing on the pot blank subjected to the thermal spraying treatment by using a rotary circulating abrasive belt until the roughness after polishing is less than Ra1, and the thickness of a titanium oxide layer after polishing is 70 mu m.
8) And carrying out ultrasonic cleaning on the finely polished pot blank.
9) Pre-irradiating the cleaned pot blank with vacuum ultraviolet to increase surface activity, and setting the pressure in the vacuum chamber to 102Pa, ultraviolet pre-irradiation time is 25 min;
10) injecting carbon ions into the pot blank subjected to vacuum ultraviolet pre-irradiation by using an ion injector, wherein the accelerating voltage of the ions is 30kV, and the injection amount of the carbon ions is 10 multiplied by 1017/cm2The depth of implantation of carbon ions was 1.2 μm. And finally, punching the obtained pot blank by using a punching machine, and fixing the rivet and the handle on the pot blank by using a riveting machine to obtain the stockpot.
To verify the performance of the cookware of the present invention, the following related tests and analyses were performed
In this test, two sets of comparative experiments were performed by taking the pan in example 1 as an example, specifically:
comparative example 1
The differences from example 1 are: step 1) the conventional titanium-aluminum rolled composite wafer was used, and step 5) was not performed, and the other steps were the same as in example 1.
Comparative example 2
The differences from example 1 are: step 9) and step 10) were not performed, and other steps were the same as in example 1.
The inner surfaces of the frying pans manufactured in example 1, comparative example 1 and comparative example 2 were tested for Vickers hardness and coefficient of sliding friction, respectively, and the results are shown in Table 1 below.
Table 1:
from the data, the vickers hardness of the surfaces of the frying pans manufactured in the embodiment 1 and the comparative example 2 (namely after the titanium powder is sprayed by cold and hot spraying) is far higher than that of the comparative example 1, and the production cost is lower than that of the conventional titanium-aluminum rolled composite material used in the comparative example 1; in addition, the surface sliding friction coefficient of the embodiment 1 is obviously reduced compared with that of the comparative example 2, and the non-stick performance of the frying pan can be obviously improved. In conclusion, the cookware manufactured by the invention can simultaneously take wear resistance and non-stick performance into consideration, and is particularly characterized in that the cookware has high Vickers hardness (more than 600HV), small sliding friction coefficient (less than 0.3), low manufacturing cost and capability of obviously improving the competitiveness of enterprises.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A manufacturing method of a high-performance composite pot is characterized by comprising the following steps:
s1: stretching the pre-cut disc pot material to form a pot blank with a designed shape;
s2: performing mouth trimming treatment on the pot blank formed in the step S1 to remove redundant waste materials and obtain a pot blank with a designed size;
s3: polishing the inner and outer surfaces of the pot blank obtained in the step S2;
s4: performing sand blasting treatment on the inner surface of the pan blank polished in the step S3 to increase the roughness of the inner surface of the pan blank;
s5: performing cold spraying titanium powder on the inner surface of the pot blank subjected to the sand blasting treatment in the step S4 to form a titanium base layer on the inner surface of the pot blank;
s6: performing thermal spraying titanium oxide powder on the inner surface of the pot blank subjected to the cold spraying treatment in the step S5 to form a titanium oxide layer on the surface of the titanium substrate for improving the surface hardness;
s7: carrying out fine grinding treatment on the inner surface of the pot blank subjected to the thermal spraying treatment in the step S6, wherein the roughness is required to be less than Ra 1;
s8: cleaning the pot blank subjected to the fine grinding treatment in the step S7, and airing;
s9: carrying out vacuum ultraviolet pre-irradiation on the inner surface of the pot blank cleaned in the step S8 for increasing the activity of the inner surface of the pot blank;
s10: and (5) injecting carbon ions into the inner surface of the pot blank subjected to vacuum ultraviolet pre-irradiation in the step (S9) to reduce the friction coefficient of the inner surface of the pot blank, so as to improve the non-stick performance of the inner surface of the pot blank, and finally, finishing the installation of the handle through machining holes to obtain the composite pot.
2. The method of claim 1, wherein the wafer of step S1 is an aluminum wafer or an aluminum-based layered composite wafer or a titanium-based layered composite wafer.
3. The manufacturing method of the high-performance composite cookware according to claim 1, wherein when titanium powder is cold-sprayed in step S5, the adopted working gas is nitrogen or helium, and the spraying pressure is 4-6 Mpa; the grain diameter of the used titanium powder is 45-150 mu m, and the thickness of the formed titanium base layer is 0.1-0.6 mm.
4. The method as claimed in claim 1, wherein the titanium oxide powder is thermally sprayed in step S6, the titanium oxide layer is formed with a particle size of 15 μm to 45 μm and a thickness of 100 μm to 300 μm, and the thickness of the titanium oxide layer left after polishing is greater than 50 μm.
5. The method of claim 1, wherein the pressure of the vacuum chamber is 10 when the vacuum ultraviolet rays are pre-irradiated in the step S9-4Pa～102Pa, and the pre-irradiation time of ultraviolet is 15-25 min.
6. The method of claim 1, wherein an electron cyclotron resonance type ion implanter is used to inject carbon ions in step S10, the acceleration voltage of the ions is 7.5 to 30kV, and the amount of injected carbon ions is 3 x 1017/cm2～10×1017/cm2The depth of the carbon ion implantation is 0.3 to 1.2 μm.
7. A production system of a high-performance composite pot tool is characterized in that based on the manufacturing method of any one of claims 1 to 6, the production system comprises a material conveying belt (11), and the material conveying belt (11) is sequentially arranged at intervals along the conveying direction of the material conveying belt (11):
the stretching device (1) is used for stretching the wafer pot material to form a pot blank;
the mouth part rolling and cutting device (2) is used for removing redundant waste materials at the mouth part of the pot blank;
an inner and outer polishing device (3) for polishing the inner and outer surfaces of the pot blank;
the sand blasting device (4) is used for increasing the roughness of the inner surface of the pot blank;
the cold spraying device (5) is used for spraying titanium powder on the inner surface of the pot blank to form a titanium base layer;
the thermal spraying device (6) is used for spraying titanium oxide powder on the inner surface of the pot blank to form a titanium oxide layer;
the fine polishing device (7) is used for finely polishing the inner surface of the pot blank so as to reduce the roughness;
an ultrasonic cleaning device (8) for cleaning the pot blank;
the ultraviolet pre-irradiation vacuum device (9) is used for increasing the activity of the inner surface of the pot blank;
the ion implantation device (10) is used for improving the non-stick property of the inner surface of the pot blank;
the material conveying belts (11) are arranged side by side at intervals, the thermal spraying devices (6) are located at the joint of the two material conveying belts (11), and the rest devices are uniformly distributed on the outer sides of the two material conveying belts (11).
8. The production system of a high-performance composite cookware according to claim 7, wherein the cold spray device (5) comprises a first operating mechanism (51), a cold spray coater (52) and a first control mechanism, the first control mechanism is connected with the first operating mechanism (51) and the cold spray coater (52) respectively;
the first operation mechanism (51) comprises a cylindrical supporting platform and a driving motor for driving the cylindrical supporting platform to rotate, a plurality of stations for placing pot blanks to be sprayed are annularly distributed on the cylindrical supporting platform, a servo motor for driving the pot blanks to be sprayed to rotate is arranged on each station, and the driving motor and the servo motor are both connected with a first control mechanism;
the cold spraying machine (52) comprises a first feeding and conveying unit (521) for containing titanium powder, a first spray gun unit (522) for spraying the titanium powder to the inner surface of a pot blank by using high-pressure gas, a first carrier gas unit (523) and an air flow pipeline (524) which are communicated with the first spray gun unit (522) and used for providing working protective gas for the first spray gun unit and assisting in conveying the titanium powder to the inner surface of the pot blank, and a first six-axis industrial robot (525) for controlling the running track of the first spray gun unit (522), wherein the first spray gun unit (522) and the first six-axis industrial robot (525) are connected with a first control mechanism.
9. The production system of a high-performance composite cookware according to claim 8, wherein the thermal spraying means (6) comprises a second operating mechanism (61), a thermal spraying machine (62) and a second control mechanism, the second control mechanism being connected to the second operating mechanism (61) and the thermal spraying machine (62), respectively;
the thermal spraying machine (62) adopts a plasma spraying machine and comprises a second feeding and conveying unit (621) for containing titanium oxide powder, a second spray gun unit (622) for spraying the titanium oxide powder to the inner surface of the pot blank by using plasma flame flow, a second carrier gas unit (623) communicated with the second spray gun unit (622) and used for providing protective gas for the second feeding and supplying the titanium oxide powder to the inner surface of the pot blank in an auxiliary mode, a powder feeding pipeline (624) is arranged between the second feeding and conveying unit (621) and the second spray gun unit (622), and a second six-axis industrial robot (625) for controlling the running track of the second spray gun unit (622), wherein the second spray gun unit (622) and the second six-axis industrial robot (625) are connected with a second control mechanism;
when the second spray gun unit (622) of the thermal spraying machine (62) is a single station, the second operation mechanism (61) and the first operation mechanism (51) have the same structure; when the second spray gun unit (622) of the thermal spraying machine (62) is double stations, the adjacent stations on the cylindrical supporting platform are connected through a belt, and the synchronism of the two pot blanks during rotation is guaranteed.
10. The production system of the high-performance composite pot as claimed in claim 7, wherein the fine polishing device (7) is a multi-station rotating disc type polishing machine, the multi-station rotating disc type polishing machine comprises a plurality of upper workpiece stations and lower workpiece stations (71) which are arranged around a rotating disc, each upper workpiece station and each lower workpiece station (71) is provided with a polishing station (72), and the polishing stations (72) are used for installing polishing abrasive belts of different types and used for circularly polishing the inner surface of the pot blank.
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