CN114015972A - Method for manufacturing iron casting rustless electric cooker inner container and heat treatment equipment - Google Patents

Abstract

The invention discloses a method for manufacturing an electric cooker liner with a rustless iron casting, which 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 the molecular structure of the liquid by generating a magnetic field to impact the reaction liquid, and heating to generate a co-permeation gas comprising nitrogen elements and carbon elements, so as to indirectly reduce the molecular structure of the co-permeation gas and enable the co-permeation gas to be more easily permeated into the electric cooker liner; and then the blank body of the inner container of the iron-casting electric cooker is arranged in heat treatment equipment, co-permeation gas is introduced to perform co-permeation with the blank body of the inner container of the iron-casting electric cooker so as to generate a fine and uniform permeation layer with nitrogen elements and carbon elements, the nitrogen elements can improve the stability of the internal organization structure of the inner container of the electric cooker and are not easy to wear, so that the inner container of the electric cooker has good oxidation resistance and rust resistance, the carbon elements enable the surface of the inner container of the electric cooker to be smooth, food is not stuck to the cooker, the touch feeling is good, and the product quality is high.

Description

Method for manufacturing iron casting rustless electric cooker inner container and heat treatment equipment

Technical Field

The invention relates to the technical field of electric cookers, in particular to a method for manufacturing an inner container of an electric cooker with a rustless iron casting. In addition, the invention also relates to heat treatment equipment for the iron casting stainless electric cooker inner container, which is used for the manufacturing method of the iron casting stainless electric cooker inner container.

Background

The electric cooker is clean and sanitary when used, has no pollution, saves time and labor, is one of indispensable appliances in daily life of people, the inner container of the electric cooker is a key part for determining the performance of the electric cooker, the existing inner container of the electric cooker which is made by taking cast iron as a raw material is rusted due to easy oxidation of iron, and therefore, a permeable layer is usually generated through co-permeation treatment so as to achieve the purpose of rust prevention of the inner container of the electric cooker, however, the existing co-permeation treatment process is as follows: heating ammonia gas to generate nitrogen, and then introducing the nitrogen into the heat treatment device to perform co-permeation with the inner container blank of the electric cooker in a high-temperature environment. However, the above-mentioned co-cementation process has the following disadvantages: 1. under the influence of the casting process of the traditional electric cooker blank, the electric cooker blank often has a series of defects of loose material, slag inclusion, air holes and the like, and the density of the crystal structure cannot meet the requirement of infiltration and rust prevention, so that the infiltration layer of the inner container of the electric cooker after the co-infiltration treatment is easy to wear and rust, and the co-infiltration treatment effect is poor; 2. the surface of the treated inner container of the electric cooker is rough, and the product quality is low.

Disclosure of Invention

The invention provides a method for manufacturing an electric cooker liner with a rustless iron casting, which aims to solve the technical problems that a permeable layer of the electric cooker liner subjected to co-permeation treatment is easy to wear and rust, the co-permeation treatment effect is poor, the surface of the electric cooker liner is rough, and the product quality is low.

According to one aspect of the invention, the method for manufacturing the inner container of the electric cooker without rusting of the iron casting 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 to convert 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.

Further, the step of crushing the reaction liquid and the step of heating and converting into the co-permeation gas comprises the following steps: metal ions are dissolved in the reaction solution.

Further, step b is preceded by 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.

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.

Furthermore, the value range of the preset conveying speed is 40-60 drops/min of the inner container blank of each iron-casting electric cooker.

Further, the value range of the first preset co-cementation temperature is 300-340 ℃.

Further, the second preset co-permeation 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 ℃.

According to another aspect of the invention, the invention also provides heat treatment equipment for the iron casting stainless inner container of the electric cooker, and the manufacturing method of the iron casting stainless inner container of the electric cooker is adopted. .

Further … ….

According to another aspect of the present invention, there is also provided … … comprising the above … ….

Further, … …

The invention has the following beneficial effects:

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 blank body of the inner container of the iron-casting electric cooker in heat treatment equipment, introducing co-permeation gas to perform co-permeation with the blank body of the inner container of the iron-casting electric cooker after the heat treatment equipment is heated to a first preset co-permeation temperature, and treating the blank body of the inner container of the iron-casting electric cooker 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 objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. 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, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a flow chart of the manufacturing method of the iron casting stainless inner container of the electric cooker in accordance with the preferred embodiment of the present invention;

FIG. 2 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.

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 dropper; 260. a color processing unit.

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 flow chart of the manufacturing method of the iron casting stainless inner container of the electric cooker in accordance with the preferred embodiment of the present invention;

FIG. 2 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.

As shown in fig. 1, the method for manufacturing the inner container of the electric cooker without rusting of the iron casting 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 to convert 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 blank body of the inner container of the iron-casting electric cooker in heat treatment equipment, introducing co-permeation gas to perform co-permeation with the blank body of the inner container of the iron-casting electric cooker after the heat treatment equipment is heated to a first preset co-permeation temperature, and treating the blank body of the inner container of the iron-casting electric cooker 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. 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 co-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 the nitriding treatment is performed before and after the oxidation treatment, so that 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. 1, in this embodiment, the step of crushing the reaction solution and the step of converting the reaction solution into the co-permeation gas by heating includes the steps of: metal ions are dissolved in the reaction solution. Specifically, the metal ions comprise brass ions or bamboo copper ions, the copper ions are dissolved in the reaction liquid to generate hydrated copper ions, so that generated co-permeation gas has copper elements, the color of the surface of the inner container of the electric cooker is changed, the surface of the inner container of the electric cooker is golden yellow after the brass ions are dissolved, and the surface of the inner container of the electric cooker is bamboo black after the bamboo copper ions are dissolved.

As shown in fig. 1, in this embodiment, step b includes the steps before: the blank of the inner container of the iron-casting electric cooker is manufactured by cast iron forming, 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. 1, in this embodiment, step b includes the steps before: 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. Specifically, the rust removing water comprises organic strong acid, an acid etching buffer and a special surfactant, can quickly and effectively remove rust spots on the surface of the blank of the liner of the iron-casting electric cooker, 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 rice 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 co-permeated with the inner container body of the electric cooker in time, 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 inner container blank 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 operating 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 infiltration effect is good, and the formed infiltration 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. In particular, 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-out 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 preventing the pot from being stuck 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.

As shown in fig. 2, the heat treatment equipment for the iron casting stainless rice cooker inner container of the embodiment adopts the manufacturing method of the iron casting stainless rice cooker inner container, is used for performing infiltration treatment on an iron casting rice cooker inner container blank after crushing and gasifying reaction liquid, and comprises a reaction assembly used for performing sealing heat treatment on the iron casting rice cooker inner container blank 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 an inner container blank of the iron-casting electric cooker, a support frame 120 which is arranged in the reaction furnace 110 and used for supporting the inner container blank of the iron-casting 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 assembly 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 communicated with the reaction furnace 110 and used for conveying the co-permeation gas into the reaction furnace 110. Specifically, the heat treatment equipment for the iron casting stainless inner container of the electric cooker comprises the steps of arranging an inner container blank of the iron casting electric cooker in a reaction furnace 110, supporting the inner container blank of the iron casting electric cooker through a support frame 120, sealing and sealing, controlling the temperature in the reaction furnace 110 through a temperature control unit so as to enable the environmental temperature to be matched with the subsequent reaction process, carrying out co-permeation reaction, and realizing that the same reaction component can complete a plurality of processes of heat treatment of the inner container of the electric cooker; 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 220, make the molecular structure of reaction liquid diminish, then the reaction liquid gasifies through gasification unit 230 and generates cementation gas, carry in reacting furnace 110 again and carry out carbon with electric rice cooker inner bag idiosome surface, 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 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 the 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 ironcasting 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 ironcasting electric rice cooker inner bag, 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 in the reaction furnace 110 to reduce the internal air 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 plurality of nozzles of the injection device face the reaction furnace 110 and 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 iron-casting 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 capable of reducing the size of the liquid molecular structure and indirectly reducing the size of the gas molecular structure by colliding with the reaction liquid through the magnetic field, so that the gas can conveniently permeate into the blank body of the inner container of the electric cooker made of iron casting, the co-permeation treatment effect is improved, the wear resistance of the permeation layer is improved, and the inner container of the electric cooker is not rusted.

As shown in fig. 2, 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 respectively connected to the temperature sensor 140, the heater 150 and the heat dissipation unit 160 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 dissipation unit 160 to reduce the temperature, so as to rapidly reduce the temperature in the reaction furnace 110, facilitate the taking out of the inner container of the electric cooker and improve the working efficiency.

As shown in fig. 2, 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. 2, 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. 2, in the present embodiment, the reaction module 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. 2, 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.

As shown in fig. 2, 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. 2, 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, in the present embodiment, a color processing unit 260 is disposed between the crushing unit 220 and the vaporizing unit 230, and metal ions for dissolving the copper ions that are generated in the reaction solution to generate water to change the surface color of the inner container of the electric cooker are disposed in the color processing unit 260. Specifically, the color processing unit 260 comprises copper tubes respectively connected with the crushing unit 220 and the gasification unit 230, reaction liquid flows through the copper tubes to generate hydrated copper ions, and the surface of the inner container of the electric cooker is in a corresponding color according to different copper ions, so that the inner container of the electric cooker is attractive and unique, and is suitable for popularization.

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 (10)

1. 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 to convert 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.

2. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 1, wherein the steps between the step of crushing the reaction liquid and the step of heating and converting into the co-permeation gas comprise the steps of: metal ions are dissolved in the reaction solution.

3. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 1, 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.

4. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 1, wherein step b comprises 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.

5. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 1, wherein the preset conveying speed is 40-60 drops/min per inner container blank of the iron casting electric cooker.

6. The method for manufacturing the iron casting stainless electric cooker inner container according to any one of claims 1-5, wherein the first predetermined co-infiltration temperature is in the range of 300 ℃ to 340 ℃.

7. The method for manufacturing the iron casting stainless electric cooker inner container according to any one of claims 1 to 5, wherein the second predetermined co-infiltration temperature is 480 ℃ to 580 ℃ and the predetermined working time is 3 hours to 7 hours.

8. The method for manufacturing the iron casting stainless electric cooker inner container according to any one of claims 1-5, wherein the 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.

9. The method for manufacturing the iron casting stainless electric cooker inner container according to claim 8, wherein the preset temperature range for taking out is 160-220 ℃.

10. A heat treatment device for an iron casting stainless electric cooker inner container, which is characterized in that the manufacturing method of the iron casting stainless electric cooker inner container of any one of claims 1 to 9 is adopted.

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