CN114774839A - Heat treatment equipment for iron casting rustless electric cooker inner container and manufacturing method - Google Patents

Heat treatment equipment for iron casting rustless electric cooker inner container and manufacturing method Download PDF

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CN114774839A
CN114774839A CN202210445561.7A CN202210445561A CN114774839A CN 114774839 A CN114774839 A CN 114774839A CN 202210445561 A CN202210445561 A CN 202210445561A CN 114774839 A CN114774839 A CN 114774839A
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inner container
electric cooker
reaction
iron
heat treatment
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CN114774839B (en
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谢喜
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Guangdong Yisong Home Appliances Co ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/28Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in one step
    • C23C8/30Carbo-nitriding
    • C23C8/32Carbo-nitriding of ferrous surfaces
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/002Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/02Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • A47J36/025Vessels with non-stick features, e.g. coatings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Cookers (AREA)

Abstract

The invention discloses a heat treatment device for an inner container of an electric cooker with a rustless iron casting, which controls the temperature in a reaction furnace through a temperature control unit so as to match the environmental temperature with the subsequent reaction process, then performs a co-permeation reaction, realizes that the same reaction assembly can complete a plurality of processes of heat treatment of the inner container of the electric cooker, and has fewer working parts and low manufacturing cost compared with the prior heat treatment device; the reaction liquid adopted by the co-permeation reaction consists of ammonia water, ammonium bicarbonate and urea dissolved in the ammonia water, and is crushed by the crushing unit, so that the molecular structure of the reaction liquid is reduced, the permeation treatment effect of the inner container of the electric cooker is good, the inner container of the iron-casting electric cooker is not rusted, the iron-casting electric cooker is durable, the waste of cast iron materials is avoided, and the purpose of environmental protection is achieved.

Description

Heat treatment equipment for iron casting rustless electric cooker inner container and manufacturing method
Technical Field
The invention relates to the technical field of electric cookers, in particular to heat treatment equipment for an inner container of an electric cooker, which is used for iron castings without rusting. In addition, the invention also relates to a manufacturing method of the iron casting rustless inner container of the electric cooker.
Background
Electric rice cooker uses sanitation and hygiene, it is pollution-free, time saving and labor saving, one of the indispensable apparatus among people's daily life, and electric rice cooker's inner bag is the key part of deciding electric rice cooker performance, electric rice cooker inner bag often need handle through heat treatment facility, heat treatment facility carries out the co-permeation through co-permeation gas and electric rice cooker inner bag and forms the permeable formation with electric rice cooker inner bag in proper order placing electric rice cooker inner bag in a plurality of reaction assembly, in order to reach electric rice cooker inner bag not rusty, and the food does not glue the effect of pot, current heat treatment facility often has following shortcoming nevertheless: 1. the blank bodies of the inner containers of the electric rice cookers need to be sequentially placed into a plurality of reaction assemblies for processing, so that the number of working components is large, the manufacturing cost is high, the processing process is complicated, the operation difficulty is high, the processing time is long, and the working efficiency is low; 2. the treatment effect of the reaction liquid is poor, so that the inner container of the electric cooker after heat treatment is not permeated uniformly, the permeable layer is easy to abrade and rust in the use process of the inner container of the electric cooker, and the treatment effect is poor.
Disclosure of Invention
The invention provides heat treatment equipment for an iron casting rustless electric cooker liner and a manufacturing method thereof, and aims to solve the technical problems of more working parts, high manufacturing cost, complex treatment process, high operation difficulty, long treatment time, low working efficiency and poor treatment effect of the conventional heat treatment equipment.
According to one aspect of the invention, the heat treatment equipment for the iron casting rustless electric cooker inner container is used for performing permeation treatment on the electric cooker inner container after crushing and gasifying reaction liquid, and comprises a reaction assembly and a liquid treatment assembly, wherein the reaction assembly is used for performing sealing heat treatment on the electric cooker inner container, and the liquid treatment assembly is communicated with the reaction assembly and is used for crushing and gasifying the reaction liquid and then introducing the reaction liquid into the reaction assembly; the reaction assembly comprises a reaction furnace for accommodating the blank of the inner container of the electric cooker, a support frame which is arranged in the reaction furnace and used for supporting the blank of the inner container of the electric cooker, a driving unit which is connected with the support frame and used for driving the support frame to rotate, and a temperature control unit which is connected with the reaction furnace and used for controlling the temperature in the reaction furnace; the liquid treatment assembly comprises a container for containing reaction liquid, a crushing unit communicated with the container and used for crushing the reaction liquid, and a gasification unit communicated with the crushing unit and used for gasifying the reaction liquid and generating co-permeation gas, wherein the gasification unit is communicated with the reaction furnace and used for conveying the co-permeation gas into the reaction furnace.
As a further improvement of the above technical solution:
further, the temperature control unit comprises a temperature sensor which is arranged on the reaction furnace and used for detecting the temperature in the reaction furnace, a heater which is arranged on the reaction furnace and used for heating the reaction furnace, a heat dissipation unit which is arranged on the reaction furnace and used for cooling the reaction furnace, and a controller which is respectively connected with the temperature sensor, the heater and the heat dissipation unit and used for controlling the operation of the heater or the heat dissipation unit according to the detection result of the temperature sensor.
Furthermore, the heat dissipation unit comprises a heat dissipation shell arranged outside the reaction furnace, a heat dissipation cavity used for ventilation and heat dissipation is formed by the surrounding of the inner side wall of the heat dissipation shell and the outer side wall of the reaction furnace, and the heat dissipation unit further comprises a heat dissipation fan communicated with the heat dissipation cavity and a heat dissipation channel communicated with the heat dissipation cavity and used for exhausting gas.
Further, the reaction assembly also comprises an exhaust gas treatment unit which is communicated with the reaction furnace and is used for collecting and purifying the exhaust gas after the reaction.
Furthermore, the liquid processing assembly also comprises a peristaltic pump which is communicated with the container and is used for providing conveying power, and a liquid dropping device which is used for controlling the conveying speed of the reaction liquid is arranged between the peristaltic pump and the crushing unit.
Further, the crushing unit includes a magnetizer for magnetizing the crushing reaction liquid.
According to another aspect of the invention, the invention also provides a method for manufacturing the iron casting rustless electric cooker inner container, which comprises the following steps: a. preparing reaction liquid for generating co-permeation gas, wherein the reaction liquid comprises 50-90 wt% of ammonia water, 4-35 wt% of ammonium bicarbonate and 4-35 wt% of urea in percentage by weight; b. installing the blank body of the inner container of the iron casting electric cooker in heat treatment equipment, sealing and sealing, and then heating the heat treatment equipment to a first preset co-permeation temperature; c. conveying the reaction liquid according to a preset conveying speed, crushing the reaction liquid, and heating and converting the reaction liquid into co-permeation gas; d. introducing the co-permeation gas into heat treatment equipment, heating the heat treatment equipment to a second preset co-permeation temperature, and treating the blank body of the inner container of the iron casting electric cooker for a preset working time to obtain the stainless inner container of the iron casting electric cooker.
As a further improvement of the above technical solution:
further, step b is preceded by the steps of: the blank of the liner of the iron-casting electric cooker is manufactured by cast iron molding, lathe grinding and polishing.
Further, step b is preceded by the steps of: and (3) placing the inner container blank of the iron-casting electric cooker into derusting water to soak for a preset derusting time, removing rust points on the surface of the inner container blank of the iron-casting electric cooker, and then wiping the inner container blank clean.
Further, the value range of the first preset co-cementation temperature is 300-340 ℃.
Further, the second preset cementation temperature ranges from 480 ℃ to 580 ℃, and the preset working time ranges from 3 hours to 7 hours.
Further, step d is followed by the steps of: and cooling the inner container of the iron-casting electric cooker to a preset taking-out temperature, then taking out the inner container of the iron-casting electric cooker, and carrying out surface vegetable oil coating process treatment.
Further, the value range of the preset taking-out temperature is 160-220 ℃.
The invention has the following beneficial effects:
according to the heat treatment equipment for the iron casting rustless electric cooker inner container, the blank body of the electric cooker inner container is arranged in the reaction furnace, the electric cooker inner container is supported by the support frame and sealed, the temperature in the reaction furnace is controlled by the temperature control unit, so that the environmental temperature is matched with the subsequent reaction process, and then the co-permeation reaction is carried out, so that the multiple processes of heat treatment of the electric cooker inner container can be completed by the same reaction assembly; the used reaction liquid of cementation reaction comprises aqueous ammonia and the ammonium bicarbonate and the urea of dissolving in the aqueous ammonia, carry out the breakage to the reaction liquid through crushing unit, make the molecular structure of reaction liquid diminish, then the reaction liquid gasifies through gasification unit and generates cementation gas, carry in the reacting furnace again and carry out carbon with electric rice cooker inner bag idiosome surface, nitrogen, the iron cementation reaction, rethread drive unit drive support frame rotates, in order to further promote the infiltration effect, because the reaction liquid has carried out the crushing unit breakage in advance, make the infiltration treatment of electric rice cooker inner bag effectual, its permeable formation is difficult for wearing and tearing, and then realized that the iron casting electric cooker inner bag does not rust, the waste of cast iron material has been avoided, reach the purpose of environmental protection. This scheme carries out osmotic treatment to electric rice cooker inner bag idiosome through reaction assembly and liquid treatment subassembly, because only need a reaction assembly, need not to carry out the transfer of electric rice cooker inner bag idiosome, make the processing procedure succinct, the operation degree of difficulty is low, the treatment time is short, high working efficiency, simultaneously because the reaction liquid has carried out broken unit in advance broken, make the osmotic treatment of electric rice cooker inner bag effectual, it does not rust to have realized the electric rice cooker inner bag of ironcasting, and the wear-resisting property is durable, the waste of cast iron material has been avoided, the purpose of environmental protection is reached.
The invention relates to a method for manufacturing an electric cooker liner without rusting iron castings, which comprises the steps of firstly preparing reaction liquid comprising ammonia water, ammonium bicarbonate and urea, then magnetizing and crushing the reaction liquid through a magnetizer, specifically reducing the molecular structure of the liquid by generating a magnetic field to impact the reaction liquid, and then heating to generate co-permeation gas comprising nitrogen elements and carbon elements, thereby indirectly reducing the molecular structure of the co-permeation gas and enabling the co-permeation gas to permeate into the electric cooker liner more easily; and then, installing the iron-casting electric cooker liner blank in heat treatment equipment, introducing co-permeation gas to generate co-permeation with the iron-casting electric cooker liner blank after the heat treatment equipment is heated to a first preset co-permeation temperature, and treating the iron-casting electric cooker liner blank for a preset working time after the heat treatment equipment is heated to a second preset co-permeation temperature. The scheme is that the reaction liquid is prepared firstly, and after the reaction liquid is treated, the reaction liquid generates the co-permeation gas to improve the effect of the co-permeation treatment, so that the inner container of the electric rice cooker has the characteristics of rust resistance, wear resistance and food non-stick pan, the service life is prolonged, the defect that the iron casting is easy to rust and scrap to cause material waste is overcome, and the purpose of environmental protection is indirectly achieved.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of a heat treatment apparatus for an inner container of an electric cooker for iron casting without rusting according to a preferred embodiment of the present invention;
FIG. 2 is a block flow diagram of the method for manufacturing the iron casting stainless inner container of the electric cooker according to the preferred embodiment of the present invention.
Illustration of the drawings:
110. a reaction furnace; 120. a support frame; 130. a drive unit; 140. a temperature sensor; 150. a heater; 160. a heat dissipation unit; 161. a heat dissipation cavity; 162. a heat radiation fan; 163. a heat dissipation channel; 170. an exhaust gas treatment unit; 180. a heat-insulating layer; 210. a container; 220. a crushing unit; 230. a gasification unit; 240. a peristaltic pump; 250. a liquid dropping device.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.
FIG. 1 is a schematic view showing the structure of a heat treatment apparatus for an inner container of a stainless steel electric rice cooker according to a preferred embodiment of the present invention; FIG. 2 is a block flow diagram of the method for manufacturing the iron casting stainless inner container of the electric cooker according to the preferred embodiment of the present invention.
As shown in fig. 1, the heat treatment equipment for the iron casting rustless electric cooker inner container of the embodiment is used for performing permeation treatment on the electric cooker inner container after crushing and gasifying reaction liquid, and comprises a reaction assembly used for performing sealing heat treatment on the electric cooker inner container and a liquid treatment assembly communicated with the reaction assembly and used for crushing and gasifying the reaction liquid and then introducing the reaction liquid into the reaction assembly; the reaction assembly comprises a reaction furnace 110 for accommodating the blank of the inner container of the electric cooker, a supporting frame 120 which is arranged in the reaction furnace 110 and is used for supporting the blank of the inner container of the electric cooker, a driving unit 130 which is connected with the supporting frame 120 and is used for driving the supporting frame 120 to rotate, and a temperature control unit which is connected with the reaction furnace 110 and is used for controlling the temperature in the reaction furnace 110; the liquid treatment assembly comprises a container 210 for containing reaction liquid, a crushing unit 220 communicated with the container 210 for crushing the reaction liquid, and a gasification unit 230 communicated with the crushing unit 220 for gasifying the reaction liquid and generating co-permeation gas, wherein the gasification unit 230 is communicated with the reaction furnace 110 for conveying the co-permeation gas into the reaction furnace 110. Specifically, the heat treatment equipment for the iron casting rustless electric cooker inner container of the invention arranges the electric cooker inner container blank in the reaction furnace 110, supports the electric cooker inner container blank through the support frame 120, seals and seals the electric cooker inner container blank, controls the temperature in the reaction furnace 110 through the temperature control unit, so that the environmental temperature is matched with the subsequent reaction process, and performs the co-permeation reaction, thereby realizing that the same reaction component can complete a plurality of processes of the heat treatment of the electric cooker inner container; the reaction liquid that the cementation reaction adopted comprises aqueous ammonia and the ammonium bicarbonate and the urea of dissolving in the aqueous ammonia, carry out the breakage to the reaction liquid through crushing unit 220, make the molecular structure of reaction liquid diminish, then the reaction liquid gasifies through gasification unit 230 and generates cementation gas, carry again and carry out carbon with electric rice cooker inner bag idiosome surface in reacting furnace 110, nitrogen, iron cementation reaction, rethread drive unit 130 drive support frame 120 rotates, in order to further promote the infiltration effect, because the reaction liquid has carried out crushing unit 220 breakage in advance, make the osmotic treatment of electric rice cooker inner bag effectual, its permeable formation is difficult for wearing and tearing, and then realized that electric rice cooker iron casting inner bag does not rust, the waste of cast iron material has been avoided, reach the mesh of environmental protection. This scheme carries out osmotic treatment to electric rice cooker inner bag idiosome through reaction assembly and liquid processing subassembly, because only need a reaction assembly, need not to carry out the transfer of electric rice cooker inner bag idiosome, make the processing procedure succinct, the operation degree of difficulty is low, the treatment time is short, high working efficiency, simultaneously because the reaction liquid has carried out broken unit 220 breakage in advance, make the osmotic treatment of electric rice cooker inner bag effectual, it does not rust to have realized the electric rice cooker inner bag of ironcasting, and the durability is durable, the waste of cast iron material has been avoided, the purpose of environmental protection is reached. Optionally, an internal negative pressure device is disposed inside the reaction furnace 110 to reduce the internal pressure of the reaction furnace 110, so that the co-permeation gas flows into the reaction furnace 110. Optionally, an injection device for injecting the co-permeation gas into the reaction furnace 110 is arranged in the gasification unit 230, a nozzle of the injection device faces the reaction furnace 110, and a plurality of nozzles are arranged along the circumferential direction of the reaction furnace 110 at intervals to form an annular conveying channel to quickly convey the co-permeation gas generated by the gasification unit 230 into the reaction furnace 110, so that the blank of the inner container of the electric rice cooker is uniformly contacted with the co-permeation gas, and the co-permeation treatment effect is improved. It should be understood that, the crushing unit 220 is to collide with the reaction liquid through the magnetic field, reduce the size of the liquid molecular structure, indirectly reduce the size of the gas molecular structure, and then be convenient for in the gas infiltration and the electric rice cooker inner container to promote the co-infiltration treatment effect, promote the wear resistance of the permeable formation, realize that the electric rice cooker inner container does not rust.
As shown in fig. 1, in the present embodiment, the temperature control unit includes a temperature sensor 140 mounted on the reaction furnace 110 for detecting the furnace temperature of the reaction furnace 110, a heater 150 mounted on the reaction furnace 110 for heating the reaction furnace 110, a heat dissipation unit 160 mounted on the reaction furnace 110 for cooling the reaction furnace 110, and a controller connected to the temperature sensor 140, the heater 150, and the heat dissipation unit 160, respectively, for controlling the operation of the heater 150 or the heat dissipation unit 160 according to the detection result of the temperature sensor 140. Specifically, the temperature sensor 140 detects the temperature inside the reaction furnace 110 and converts the temperature into an output signal to be transmitted to the controller, the controller controls the heater 150 or the heat dissipation unit 160 to operate according to the output signal and the stage of the current process, for example, when the co-permeation reaction starts, the temperature sensor 140 detects that the temperature is too low, the controller controls the heater 150 to heat, and the reaction rate is increased; when the co-permeation reaction is finished, the temperature sensor 140 detects that the temperature is too high, and the controller controls the heater 150 to stop the strengthening and heat-radiating unit 160 to reduce the temperature, so that the temperature in the reaction furnace 110 is rapidly reduced, the inner container of the electric cooker is convenient to take out, and the working efficiency is improved.
As shown in fig. 1, in the present embodiment, the heat dissipating unit 160 includes a heat dissipating housing disposed outside the reaction furnace 110, an inner sidewall of the heat dissipating housing and an outer sidewall of the reaction furnace 110 enclose a heat dissipating chamber 161 for ventilation and heat dissipation, and the heat dissipating unit 160 further includes a heat dissipating fan 162 communicated with the heat dissipating chamber 161 and a heat dissipating channel 163 communicated with the heat dissipating chamber 161 for exhausting gas. Specifically, cold air is delivered into the heat dissipation chamber 161 by the heat dissipation fan 162, and the cold air absorbs heat from the outer side wall of the reaction furnace 110 and is then discharged from the heat dissipation channel 163, so as to rapidly reduce the temperature inside the reaction furnace 110, and facilitate taking out the inner container of the electric rice cooker. Optionally, the heat dissipation chamber 161 is a spiral chamber disposed around the outside of the reaction furnace 110, the input end of the heat dissipation chamber is communicated with the heat dissipation fan 162, and the output end of the heat dissipation chamber is communicated with the heat dissipation channel 163, so that the cold air input by the heat dissipation fan 162 sequentially absorbs the heat of each part on the outer sidewall of the reaction furnace 110, so that the temperature of the reaction furnace 110 is rapidly decreased and each part is uniformly cooled, thereby avoiding the risk that the local temperature is too rapidly decreased to generate a large internal stress to damage the reaction furnace 110. Optionally, the heat dissipation unit 160 includes a water tank for containing ice water and a conveying pump disposed between the water tank and the heat dissipation cavity 161 for conveying the ice water into the heat dissipation cavity 161, the ice water is conveyed into the heat dissipation cavity 161 by the conveying pump, and the cold air absorbs heat from the outer side wall of the reaction furnace 110 and is then discharged from the heat dissipation channel 163, so as to rapidly reduce the temperature inside the reaction furnace 110, so as to take out the inner container of the electric rice cooker.
As shown in fig. 1, in the present embodiment, the heater 150 includes an electric heating coil or an electric heating tube. Specifically, the reaction furnace 110 is heated by the electric heater 150 or the electric heating tube to generate a suitable environment in the reaction furnace 110 for the co-permeation reaction, and the electric heating mode is technically mature and has high heating efficiency. Optionally, the heater 150 may also select one or more of open fire heating, natural gas heating, microwave heating, electromagnetic heating, and the like. Optionally, the heater 150 further comprises a heating cavity, and heat is uniformly applied to the reaction furnace 110 through the heating cavity to improve the effect of the co-cementation process in the reaction furnace 110. Optionally, the heater 150 further comprises a heat exchange tube connected to the reaction furnace 110, and the reaction furnace 110 is heated by feeding a heat or hot oil into the heat exchange tube.
As shown in fig. 1, in the present embodiment, the reaction assembly further includes an exhaust gas treatment unit 170 communicating with the reaction furnace 110 for collecting and purifying the exhaust gas after the reaction. Specifically, the exhaust gas treatment unit 170 includes an ammonia remover for collecting ammonia gas, and ammonia gas in the exhaust gas is removed by the ammonia remover to leave clean water vapor, so as to prevent the exhaust gas after reaction from polluting the environment and achieve the purpose of environmental protection.
As shown in FIG. 1, in this embodiment, the liquid processing assembly further comprises a peristaltic pump 240 communicating with the container 210 for providing a conveying power, and a dripper 250 for controlling the conveying rate of the reaction liquid is disposed between the peristaltic pump 240 and the crushing unit 220. Specifically, the reaction liquid is delivered into the dripper 250 by the peristaltic pump 240, and the dripper 250 delivers the reaction liquid according to a preset delivery rate. Optionally, the preset conveying speed is in the range of 45-55 drops/min, when the preset conveying speed is in the range, a proper amount of co-permeation gas generated by the gasification unit 230 is conveyed into the reaction furnace 110, the co-permeation efficiency is good, and the purpose of environmental protection can be achieved, when the preset conveying speed is less than 45 drops/min, too little co-permeation gas generated by the gasification unit 230 is generated, and because the reaction time of the reaction furnace 110 is fixed, the inner container of the electric cooker cannot be uniformly co-permeated, so that the wear resistance is reduced, and the inner container of the electric cooker is rusted; when the preset conveying rate is greater than 55 drops/min, the co-permeation gas generated by the gasification unit 230 is too much, the co-permeation reaction cannot consume the co-permeation gas in time, so that the co-permeation gas is accumulated, and when the waste gas needs to be discharged, the waste gas treatment unit 170 finishes treating the too much waste gas, so that the untreated waste gas flows out to pollute the external environment.
As shown in fig. 1, in the present embodiment, the crushing unit 220 includes a magnetizer for magnetizing the crushing reaction liquid. Specifically, the magnetizer generates a magnetic field to impact liquid so as to reduce the size of a liquid molecular structure and further indirectly reduce the size of a gas molecular structure, so that the co-permeation gas can simply and rapidly permeate into the inner container of the electric cooker no matter the condition of the density degree of the crystal tissues on the surface of the inner container of the electric cooker, and the co-permeation treatment effect is improved.
As shown in fig. 1, in the present embodiment, the reaction module further includes an insulating layer 180 disposed outside the reaction furnace 110 for maintaining the furnace temperature of the reaction furnace 110. Specifically, the heat insulation layer 180 comprises heat insulation cotton, so that the loss of heat in the reaction furnace 110 is reduced through the heat insulation layer 180, the energy consumption during heating is reduced, and the purposes of energy conservation and environmental protection are achieved.
As shown in fig. 2, the method for manufacturing the inner container of the electric cooker without rusting of the iron casting in the embodiment comprises the following steps: a. preparing reaction liquid for generating co-permeation gas, wherein the reaction liquid comprises 50 wt% -90 wt% of ammonia water, 4 wt% -35 wt% of ammonium bicarbonate and 4 wt% -35 wt% of urea in percentage by weight; b. installing the blank body of the inner container of the iron casting electric cooker in heat treatment equipment, sealing and sealing, and then heating the heat treatment equipment to a first preset co-permeation temperature; c. conveying the reaction liquid according to a preset conveying speed, crushing the reaction liquid, and heating and converting the reaction liquid into co-permeation gas; d. introducing the co-permeation gas into heat treatment equipment, heating the heat treatment equipment to a second preset co-permeation temperature, and treating the blank body of the inner container of the iron casting electric cooker for a preset working time to obtain the stainless inner container of the iron casting electric cooker. The method comprises the steps of firstly preparing reaction liquid comprising ammonia water, ammonium bicarbonate and urea, then carrying out magnetization crushing on the reaction liquid through a magnetizer, specifically reducing a liquid molecular structure by generating a magnetic field to impact the reaction liquid, and heating to generate gas comprising nitrogen and carbon element co-permeation, so that the molecular structure of the co-permeation gas is indirectly reduced, and the gas can be more easily permeated into the inner container of the electric cooker; and then, installing the iron-casting electric cooker liner blank in heat treatment equipment, introducing co-permeation gas to generate co-permeation with the iron-casting electric cooker liner blank after the heat treatment equipment is heated to a first preset co-permeation temperature, and treating the iron-casting electric cooker liner blank for a preset working time after the heat treatment equipment is heated to a second preset co-permeation temperature. The scheme prepares the reaction liquid firstly, and generates the co-permeation gas through the reaction liquid after the reaction liquid is treated so as to improve the co-permeation treatment effect, so that the inner container of the electric rice cooker has the characteristics of no rust, wear resistance and food non-stick pan, prolongs the service life, solves the defect that the iron casting is easy to rust and scrap to cause material waste, and indirectly achieves the purpose of environmental protection. It should be understood that the co-permeation gas can co-permeate with the blank body of the iron-casting electric cooker liner at the first preset co-permeation temperature, and the co-permeation rate at the second preset co-permeation temperature is the best, so that the co-permeation gas can be introduced into the heat treatment equipment for co-permeation when the heat treatment equipment is heated to the second preset temperature from the first preset co-permeation temperature, the working efficiency is improved, and the energy waste caused by heating consumption is avoided.
It should be understood that the cementation reaction is: the co-permeation gas permeates into the inner container of the electric cooker to generate a composite layer, the composite layer comprises an oxide layer and a nitride layer, the composite layer has high corrosion resistance and wear resistance of a base body, particularly, under the condition of high temperature regulation, nitrogen elements diffuse and permeate into the deep part of cast iron, the iron elements react with nitrogen to generate Fe3N, the corrosion resistance of the inner container of the electric cooker is improved, then, when the inner container of the electric cooker is contacted with air, the iron elements react with oxygen to generate Fe3O4, and because the nitriding treatment is performed before and after the oxidizing treatment, the outer surface layer is Fe3O4, and the inner surface layer is Fe 3N. The hardness of the steel part can be improved by the nitriding heat treatment process, and the Fe3O4 can reduce the friction coefficient, improve the wear resistance and improve the wear resistance.
As shown in fig. 2, in this embodiment, step b includes the steps before: the blank of the liner of the iron-casting electric cooker is manufactured by cast iron molding, lathe grinding and polishing. Particularly, the blank body of the inner container of the electric cooker made of cast iron can dissolve iron ions into food in the using process of the electric cooker so as to supplement iron elements of human bodies and be beneficial to physical and psychological health of people.
As shown in fig. 2, in this embodiment, step b includes the steps before: and (3) soaking the iron casting electric cooker inner container blank in the rust removing water for a preset rust removing time, removing rust points on the surface of the iron casting electric cooker inner container blank, and wiping the iron casting electric cooker inner container blank clean. Specifically, the rust removing water comprises organic strong acid, an acid corrosion buffering agent and a special surfactant, can quickly and effectively remove rust spots on the surface of an iron casting electric cooker liner blank, and then is wiped clean by using a rag. Optionally, the derusting time is preset to be within a range of 15-25 minutes, and rust spots on the surface of the blank of the inner container of the iron-casting electric cooker can be efficiently and thoroughly removed within the time range; when the preset derusting time is less than 15 minutes, the removing time is too short, and rust spots on the surface of the blank body of the inner container of the iron-casting electric cooker can remain; when the preset derusting time is longer than 25 minutes, the cleaning time is too long, the working efficiency is low, and the internal structure of the iron casting electric cooker liner blank is possibly damaged.
In the embodiment, the value range of the preset conveying speed is 40-60 drops/min of the inner container blank of each iron casting electric cooker. Specifically, the preset conveying speed is in the range of 40-60 drops/min, when the preset conveying speed is in the range, the co-permeation gas is generated at a proper speed, the co-permeation efficiency is good, and the purpose of environmental protection can be achieved, and when the preset conveying speed is less than 40 drops/min, the co-permeation gas is generated at a too low speed, so that the inner container of the electric cooker cannot be uniformly co-permeated, the wear resistance is reduced, and the inner container of the electric cooker is rusted; when the preset conveying speed is higher than 60 drops/min, the co-permeation gas is generated at an excessively high speed, the co-permeation reaction cannot consume the co-permeation gas in time, the co-permeation gas is accumulated, excessive waste gas is accumulated after the reaction, and the waste gas flows out to pollute the external environment. It should be understood that the preset conveying speed ranges from 40 drops/min to 60 drops/min for each iron-casting electric cooker liner blank, namely the preset conveying speed of one iron-casting electric cooker liner blank ranges from 40 drops/min to 60 drops/min, and the preset conveying speed of two iron-casting electric cooker liner blanks ranges from 80 drops/min to 120 drops/min.
In this embodiment, the value range of the first predetermined co-cementation temperature is 300-340 ℃. Specifically, when the first preset co-permeation temperature is within 300-340 ℃, co-permeation gas can be timely co-permeated with the inner container blank of the electric cooker, so that the waste of energy is avoided; when the first preset co-permeation temperature is lower than 300 ℃, co-permeation gas cannot co-permeate with the blank of the inner container of the electric cooker, so that the co-permeation gas is stored in heat treatment equipment after being introduced and cannot be consumed in time; when the first preset co-permeation temperature is higher than 340 ℃, co-permeation gas can be co-permeated with the inner container blank of the electric cooker in the heating process, so that energy waste in the heating time is caused.
In this embodiment, the second predetermined co-permeation temperature ranges from 480 ℃ to 580 ℃, and the predetermined working time ranges from 3 hours to 7 hours. Specifically, when the first preset co-permeation temperature is within 480-580 ℃, the co-permeation speed of the co-permeation gas is fastest, and the co-working efficiency is higher; when the first preset co-permeation temperature is lower than 480 ℃, the co-permeation gas cannot reach the fastest co-permeation speed, and the working efficiency is reduced; when the first preset co-permeation temperature is higher than 580 ℃, co-permeation gas and the inner container blank of the electric cooker cannot co-permeate. When the preset working time is within 3-7 hours, the permeation effect is good, and the formed permeation layer is fine and uniform; when the preset working time is less than 3 hours, the working time is short, and the permeation effect is poor; when the preset working time is longer than 7 hours, the permeation layer formed by the method cannot be improved due to overlong permeation time, and the energy consumed by heating is far higher than the improved permeation effect under the influence of marginal benefit, so that the energy is wasted.
In this embodiment, step d includes the following steps: and cooling the inner container of the iron-casting electric cooker to a preset taking-out temperature, then taking out the inner container of the iron-casting electric cooker, and carrying out surface vegetable oil coating process treatment. Particularly, the vegetable oil permeates into the crystal structure of the inner container of the iron-casting electric cooker, and can play a role in physically preventing the inner container of the iron-casting electric cooker from sticking to a pan.
In this embodiment, the preset temperature range is 160 ℃ to 220 ℃. Specifically, when the preset taking-out temperature is 160-220 ℃, the temperature of the inner container of the electric cooker is proper, so that the vegetable oil can permeate conveniently; when the preset taking temperature is less than 160 ℃, the temperature of the inner container of the electric cooker is too low, the penetration effect of the vegetable oil is limited, and the effect of physically not sticking the cooker is poor; when the preset taking temperature is higher than 220 ℃, the temperature of the inner container of the electric cooker is too high, and the vegetable oil can possibly generate harmful substances under the action of high temperature, so that the physical and psychological health of a user is endangered.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A kind of iron casting rustless heat treatment equipment for electric cooker inner container, is used for carrying on the osmotic treatment to the electric cooker inner container after breaking and gasifying the reaction solution, characterized by that, the heat treatment equipment includes the reaction assembly used for carrying on the hermetic heat treatment to the electric cooker inner container and liquid processing assembly communicated with reaction assembly used for breaking and gasifying the reaction solution, then let in to the reaction assembly;
the reaction assembly comprises a reaction furnace (110) for accommodating the inner container blank of the electric cooker, a support frame (120) which is arranged in the reaction furnace (110) and used for supporting the inner container blank of the electric cooker, a driving unit (130) which is connected with the support frame (120) and used for driving the support frame (120) to rotate, and a temperature control unit which is connected with the reaction furnace (110) and used for controlling the temperature in the reaction furnace (110);
the liquid treatment component comprises a container (210) for containing reaction liquid, a crushing unit (220) communicated with the container (210) and used for crushing the reaction liquid, and a gasification unit (230) communicated with the crushing unit (220) and used for gasifying the reaction liquid and generating co-permeation gas, wherein the gasification unit (230) is connected with the reaction furnace (110) and is used for conveying the co-permeation gas into the reaction furnace (110).
2. The heat treatment equipment for the iron casting stainless rice cooker inner container according to claim 1, wherein the temperature control unit comprises a temperature sensor (140) installed on the reaction furnace (110) and used for detecting the temperature in the reaction furnace (110), a heater (150) installed on the reaction furnace (110) and used for heating the reaction furnace (110), a heat dissipation unit (160) installed on the reaction furnace (110) and used for cooling the reaction furnace (110), and a controller respectively connected with the temperature sensor (140), the heater (150) and the heat dissipation unit (160) and used for controlling the operation of the heater (150) or the heat dissipation unit (160) according to the detection result of the temperature sensor (140).
3. The heat treatment equipment for the iron casting stainless electric cooker inner container as claimed in claim 2, wherein the heat dissipation unit (160) comprises a heat dissipation housing arranged outside the reaction furnace (110), the inner side wall of the heat dissipation housing and the outer side wall of the reaction furnace (110) are enclosed to form a heat dissipation cavity (161) for ventilation and heat dissipation, the heat dissipation unit (160) further comprises a heat dissipation fan (162) communicated with the heat dissipation cavity (161) and a heat dissipation channel (163) communicated with the heat dissipation cavity (161) and used for exhausting gas.
4. The heat treatment equipment for the iron casting stainless electric cooker inner container according to claim 1, wherein the reaction assembly further comprises an exhaust gas treatment unit (170) communicated with the reaction furnace (110) for collecting and purifying the exhaust gas after the reaction.
5. The heat treatment equipment for the iron casting stainless electric cooker inner container according to any one of claims 1-4, wherein the liquid treatment assembly further comprises a peristaltic pump (240) communicated with the container (210) and used for providing conveying power, and a dripper (250) used for controlling the conveying rate of the reaction liquid is arranged between the peristaltic pump (240) and the crushing unit (220).
6. The heat treatment equipment for the iron casting stainless electric cooker inner container according to any one of claims 1-4, wherein the crushing unit (220) comprises a magnetizer for magnetizing the crushing reaction liquid.
7. A method for manufacturing an inner container of an electric cooker without rusting iron castings is characterized by comprising the following steps:
a. preparing reaction liquid for generating co-permeation gas, wherein the reaction liquid comprises 50 wt% -90 wt% of ammonia water, 4 wt% -35 wt% of ammonium bicarbonate and 4 wt% -35 wt% of urea in percentage by weight;
b. installing the blank body of the inner container of the iron casting electric cooker in heat treatment equipment, sealing and sealing, and then heating the heat treatment equipment to a first preset co-permeation temperature;
c. conveying the reaction liquid according to a preset conveying speed, crushing the reaction liquid, and heating and converting the reaction liquid into co-permeation gas;
d. introducing the co-permeation gas into heat treatment equipment, heating the heat treatment equipment to a second preset co-permeation temperature, and treating the blank body of the inner container of the iron casting electric cooker for a preset working time to obtain the stainless inner container of the iron casting electric cooker.
8. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 7, wherein step b comprises the steps of: the blank of the inner container of the iron-casting electric cooker is manufactured by cast iron forming, lathe grinding and polishing.
9. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 7, wherein step b comprises the steps of: and (3) soaking the iron casting electric cooker inner container blank in the rust removing water for a preset rust removing time, removing rust points on the surface of the iron casting electric cooker inner container blank, and wiping the iron casting electric cooker inner container blank clean.
10. The method for manufacturing the iron casting stainless electric cooker inner container according to any one of claims 1 to 9, wherein the first predetermined co-infiltration temperature is in a range of 300 ℃ to 340 ℃.
11. The method for manufacturing an iron casting stainless electric cooker inner container according to any one of claims 1-9, wherein the second predetermined co-cementation temperature is between 480 ℃ and 580 ℃ and the predetermined working time is between 3 hours and 7 hours.
12. The method for manufacturing an iron casting stainless electric cooker inner container according to any one of claims 1-9, wherein step d is followed by the steps of: and cooling the inner container of the iron-casting electric cooker to a preset taking-out temperature, then taking out the inner container of the iron-casting electric cooker, and carrying out surface vegetable oil coating process treatment.
13. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 12, wherein the preset temperature range for taking out is 160-220 ℃.
CN202210445561.7A 2021-10-15 2022-04-26 Heat treatment equipment for stainless electric cooker liner of iron casting and manufacturing method Active CN114774839B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980072371A (en) * 1997-03-04 1998-11-05 토니 헬샴 Plasma Carburization Heat Treatment Apparatus And Method
JP2008178805A (en) * 2007-01-25 2008-08-07 Hitachi Zosen Corp Fluid stirring method and fluid stirring device
CN201520799U (en) * 2009-08-18 2010-07-07 杭州浙锚预应力有限公司 Multicomponent penetration heating device
JP2011244836A (en) * 2010-05-21 2011-12-08 Sharp Corp Rice cooker and oven container used for the same
CN105852651A (en) * 2016-06-01 2016-08-17 玉林市安特机械制造有限公司 Production process of casting iron coating-free stainless liner of electric cooker
CN110359009A (en) * 2019-08-08 2019-10-22 江苏良川科技发展有限公司 A kind of multicomponent gas permeation consolidation system and its technique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980072371A (en) * 1997-03-04 1998-11-05 토니 헬샴 Plasma Carburization Heat Treatment Apparatus And Method
JP2008178805A (en) * 2007-01-25 2008-08-07 Hitachi Zosen Corp Fluid stirring method and fluid stirring device
CN201520799U (en) * 2009-08-18 2010-07-07 杭州浙锚预应力有限公司 Multicomponent penetration heating device
JP2011244836A (en) * 2010-05-21 2011-12-08 Sharp Corp Rice cooker and oven container used for the same
CN105852651A (en) * 2016-06-01 2016-08-17 玉林市安特机械制造有限公司 Production process of casting iron coating-free stainless liner of electric cooker
CN110359009A (en) * 2019-08-08 2019-10-22 江苏良川科技发展有限公司 A kind of multicomponent gas permeation consolidation system and its technique

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Effective date of registration: 20231114

Address after: No. 285-2 Chunjiang Avenue, Chuncheng Street, Yangchun City, Yangjiang City, Guangdong Province, 529600 (Residence application)

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Patentee before: Xie Xi