CN217408449U - Difficult rust and difficult integrative pan of pig iron casting that glues - Google Patents

Abstract

The application discloses difficult rust and difficult sticky integrative pan of pig iron casting, including the pot body, at pot body symmetric position respectively fixed mounting have main handle and vice handle, the pot body includes bottom of a boiler and pot lateral wall, the bottom of a boiler internal surface is the plane setting, the bottom of a boiler is embedded to have the substrate in the integrative casting, the whole or partial surface that outwards extends to the bottom of a boiler of bottom of a boiler in the bottom of a boiler; the inner surface of the pan body is provided with a mirror surface layer formed by carburization, grinding and polishing and passivation. The utility model adopts carburization, physical grinding and polishing and chemical passivation treatment, so that a mirror surface layer with stable chemical characteristics is formed on the inner surface of the pot, and the pot can be well prevented from sticking and rusting; simultaneously through casting embedding substrate, can have the water conservancy diversion effect to flame when increasing with flame area of contact, avoid flame retardation siltation, solve the pan and be heated slower problem.

Description

Difficult rust and difficult integrative pan of pig iron casting that glues

Technical Field

The utility model relates to a kitchen utensils and appliances cooking utensil field especially relates to pan product technical field, concretely relates to difficult rust is difficult for integrative pan of pig iron casting who glues.

Background

The pot is a cooker which is needed almost every day in people's life, and is a necessary cooker for cooking and frying dishes in daily life. The existing frying pans are various in shape, are classified from the material aspect and can be mainly divided into metal pans and non-metal pans; non-metal cookware is mostly made of ceramic materials, such as ceramic pans, soup pots, marmite and the like. The metal pot comprises an iron pot, an aluminum pot, a stainless steel pot, an alloy pot and the like. As the iron pan has long service life, the iron pan is directly cast/forged by iron, has no coating on the surface and does not contain substances harmful to human body; meanwhile, the iron pan is favored because of the advantages of high temperature resistance, uniform heat conduction, easy control of the duration and degree of heating, difficult occurrence of scorching and the like. However, the iron pan has obvious defects of easy pan sticking and easy rusting; the iron pan is not cleaned, liver damage is easily caused when the iron pan is abnormally ingested, and the iron pan is not healthy, so that the iron pan is prevented from rusting on the premise of keeping the advantages of the iron pan, and the problem of sticking the iron pan is the improvement direction of the iron pan.

Most of the existing non-stick pans are made of alloy materials, and a few of iron pans are also provided with non-stick pans, and the mode for solving the problems of sticking and rusting is that a special coating is arranged on the inner surface of the pan, and the coating can fall off under the actions of long-term cleaning, high temperature and rubbing, and the coating material has adverse factors or even causes diseases for long-term action of food, so that the key problem of improving the iron pan is solved by how to keep the traditional iron pan materials and solving the problems of sticking and rusting.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the existing iron pan is easy to rust and stick to the pan, the application provides a difficult-to-rust and difficult-to-stick integrated pig iron casting pan for solving the problem that the iron pan is easy to rust and stick to the pan, and simultaneously, the maximum characteristic of quick and uniform heat conduction of the iron pan itself is kept. This application adopts carburization, physics burnishing and polishing and chemical passivation to handle for the pan internal surface forms the mirror layer that the chemical properties is stable, can have better preventing to glue the pot, rusty effect.

The utility model discloses a simple pan commonly used, the structure is simple relatively, nevertheless for the difference between accurate, audio-visual understanding this application and the current pan, perhaps current iron pan, the beneficial technological effect that its structural improvement brought will be directed against the institutional advancement of this application below to and the technology that obtains this special construction and adopt introduces. Current iron pan generally casts through the mould, takes out after the pan shaping and can use, and the main reason that current iron pan glued the pot has two:

first, the reason of physical structure is that the cast iron pot has no smooth surface, and the inner surface of the pot, i.e. the actual use surface, is rough and even has a rough feeling directly sensed by touch. The reason is that the iron pan has a gap due to the contact between the liquid molten iron and the mold in the casting process, and the bubbles and the like cause a large amount of micro bubbles and cracks on the surface of the formed pan, thereby causing the surface of the pan to have rough feeling. When the cookware is in actual use, food and the uneven cookware surface have larger friction factor and adhesive force, so that the cookware is not easy to fall off and stick to the cookware.

Secondly, the reason in the aspect of physical characteristics, no matter the iron pan is a cooked iron pan with extremely low carbon content or a relatively high pig iron pan, the main component is iron, the courtyard characteristic of the iron itself does not have a lubricating effect, so that the pure iron does not have the functions of rust prevention and adhesion prevention, and the reason why the existing iron pan is easy to stick and rust is also the reason.

Based on the reason, the iron pan has the technical effects of difficult rusting and adhesion by adopting the special processing technology and structure.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

a cast iron integrated pot not prone to rusting and adhering comprises a pot body, wherein a main handle and an auxiliary handle are fixedly mounted at symmetrical positions of the pot body respectively, the pot body comprises a pot bottom and a pot side wall, the inner surface of the pot bottom is arranged in a plane, a substrate is embedded in the pot bottom in an integrated casting mode, and the bottom surface of the substrate extends to the outer surface of the pot bottom completely or partially; the inner surface of the pan body is provided with a mirror surface layer formed by carburization, grinding and polishing and passivation. The formation of the mirror layer is realized by the following processes:

the mirror surface layer needs to be sequentially treated by carburizing, grinding and polishing and passivating processes,

firstly, manually or mechanically grinding and polishing the pot body to enable the inner surface of the pot body to have higher flatness, preferably achieving the technical effect that the surface has a dark glossy surface or a bright glossy surface, enabling the surface roughness to be not more than 0.2, and finishing polishing;

performing carburizing treatment, wherein the carburizing mode is to put the cookware blank cast by the die into a carbon-rich active medium, and heat the cookware blank to over 900 ℃ for a heat preservation time of not less than hours, and the aim of carburizing is to ensure that the inner surface of the pot body has more carbon atoms which can provide better lubrication, thereby playing the role of microcosmic anti-sticking of the pot; however, the process treatment alone cannot achieve the antirust effect, and increases the possibility of corrosion. The mechanical structure of the surface is improved, and particularly the surface hardness of the pan body is improved, so that the pan body has higher hardness in the subsequent use process.

Finally, carrying out passivation treatment, wherein the passivation is carried out in two stages: the first stage is chemical passivation, concentrated nitric acid is adopted to be arranged in the polished pot body, and the concentrated nitric acid is enabled to be in complete contact with the inner surface of the pot body by continuously shaking the pot, so that an oxidation film with stable chemical properties is formed; then, the second stage is carried out the pan and fully heats, and pan heating temperature is not less than 200 ℃, then implants edible vegetable oil, and the pan that rocks repeatedly for vegetable oil constantly infiltrates in the slight gap in surface of pot body under the effect of high temperature, and forms complicated oxide film under the continuous effect of high temperature, makes iron pan surface blackening, reaches and completely cuts off the technological effect that plays rust-resistant antiseized with pure iron and food. The substrate adopts nested cast mode and pot body 1 formation integral structure, and such effect compares and has better laminating degree in other mosaic processes for the pan has better heat conductivility in the use. The substrate mainly has two functions: firstly, the wear resistance of the bottom of the pan is increased, the service life of the pan bottom is prolonged, and the scrapping of the pan caused by the damage of the pan bottom of the iron pan is avoided; secondly, the high-temperature continuous capability of the pot is improved, the pot bottom of the existing iron pot is thin, when the pot leaves or is far away from flame burning, the temperature in the pot is reduced very quickly, the fast cooking of food is not facilitated, and particularly, when the pot is used for cooking, the application scene that water is required to be quickly evaporated into high-temperature water vapor to cook food instantly when encountering the pot with continuous high temperature is realized; the substrate of this application can be under the same heating condition, the temperature of the pan of more lasting maintenance.

In order to improve the heating capacity of cookware with the same size, preferably, the bottom surface of the substrate extends outwards from the outer surface of the pot bottom and is at least 1mm higher than the outer surface of the pot bottom, and a plurality of diversion trenches arranged in a radioactive array are arranged on the bottom surface of the substrate.

In order to form a flow guiding effect on the flame, so that the periphery of the pot can be attached to the flame to absorb more heat, preferably, the depth of the flow guiding groove is gradually increased from one end close to the center of the substrate to extend outwards along the length direction, and the width of the flow guiding groove is gradually increased.

In order to further improve the heating capacity and avoid the change of direction caused by the blockage of flame diversion, preferably, an inwards concave overflow port is formed at the joint of the diversion trench and the outer edge of the substrate, and the bottom of the overflow port is flush with the bottom surface of the pot bottom.

In order to improve the integration of the insert-cast substrate and the pot, the outer circumference of the substrate is preferably provided with a plurality of lugs which are integrally formed, and the distance between the farthest end of each lug and the center of the substrate is smaller than the radius of the pot bottom.

In order to avoid the handle from being deformed or burnt due to high-temperature baking, the main handle preferably comprises a fixing part connected with the pan body and a handle part used for holding, and an insulating ring is arranged between the fixing part and the handle part.

Has the advantages that:

the utility model discloses a physics burnishing and polishing reduces the coefficient of adhesion who glues the pot, and the hardness on rethread carburization increase pan surface promotes the wearability of pan, and carbon atom self has the lubricity simultaneously, has antiseized effect, forms the mirror layer that the chemical properties is stable through passivation treatment, and isolated iron triggers the phenomenon of rustting with other supporting shunting to have antiseized, rust-resistant technological effect.

The utility model discloses a casting embedding substrate can have the water conservancy diversion effect to flame when increase and flame area of contact, avoids the retardant siltation of flame, solves the pan and is heated slower problem.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is an isometric view of the present invention.

Fig. 2 is another visual isometric view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a sectional view taken along a sectional symbol a-a in fig. 3.

Fig. 5 is an enlarged view of the structure of region B in fig. 4.

Fig. 6 is an enlarged view of the structure of region C in fig. 4.

Fig. 7 is the mirror layer structure of fig. 6 after carburization and passivation polishing.

Fig. 8 is a bottom view of fig. 1.

Fig. 9 is a schematic illustration of a perspective view of the lobed configuration of fig. 8.

In the figure: 1-a pot body; 11-pot bottom; 111-matte layer; 112-mirror layer; 12-pot side wall; 2-a main handle; 3-an auxiliary handle; 4-a substrate; 41-a lug; 5-a diversion trench; 6-overflow port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

with reference to the attached drawings 1-7 of the specification, the pig iron casting integrated cooker with the characteristics of rust resistance and adhesion resistance comprises a cooker body 1, wherein a main handle 2 and an auxiliary handle 3 are fixedly installed at symmetrical positions of the cooker body 1 respectively, the cooker body 1 comprises a cooker bottom 11 and a cooker side wall 12, the inner surface of the cooker bottom 11 is arranged in a plane manner, a substrate 4 is integrally cast and embedded in the cooker bottom 11, and the bottom surface of the substrate 4 extends outwards to the outer surface of the cooker bottom 11 completely or partially; the inner surface of the pot body 1 has a mirror layer 112 formed by carburizing, grinding and polishing and passivating. The formation of the mirror layer 112 is achieved by the following process:

the mirror layer 112 needs to be sequentially processed by carburizing, grinding and polishing and passivating,

firstly, manually or mechanically grinding and polishing the pot body 1 to enable the inner surface of the pot body 1 to have higher flatness, when casting of the pot is completed, the inner surface of the pot body is provided with a rough surface layer 111, as shown in fig. 6, the inner surface of the pot body 1 has larger adhesive force at the moment, and the phenomenon of sticking the pot is very easy to occur, so that physical grinding is needed to remove obvious particles, then deep polishing treatment is carried out, the technical effect that the surface has a dark glossy surface or a bright glossy surface is achieved, the surface roughness is not more than 0.2, and the pot is polished;

performing carburizing treatment, wherein the carburizing mode is that a cookware blank cast by a die is placed into a carbon-rich active medium and heated to more than 900 ℃ for heat preservation time not less than 1 hour, and the purpose of carburizing is to enable the inner surface of the cookware body 1 to have more carbon atoms which can provide better lubrication, thereby playing a role of microcosmic anti-sticking of the cookware; however, the process treatment alone cannot achieve the antirust effect, and increases the possibility of corrosion. The mechanical structure of the surface is improved, and especially the surface hardness of the pan body 1 is improved, so that the pan body 1 has higher hardness in the subsequent use process.

Finally, carrying out passivation treatment, wherein the passivation is carried out in two stages: the first stage is chemical passivation, concentrated nitric acid is adopted to be arranged in the polished pot body 1, and the pot is continuously shaken to ensure that the concentrated nitric acid is completely contacted with the inner surface of the pot body 1 and form an oxidation film with stable chemical properties; then, the second stage is to carry out the abundant heating with the pan, and pan heating temperature is not less than 200 ℃, then implants edible vegetable oil, and the pan of rocking is repeated for vegetable oil constantly infiltrates in the slight gap in the surface of pot body 1 under the effect of high temperature, and forms complicated oxide film under the continuous effect of high temperature, makes iron pan surface blackening, reaches and completely cuts off the technological effect that plays rust-resistant antiseized with pure iron and food. The substrate 4 adopts nested cast mode and pot body 1 to form integrated structure, and such effect has better laminating degree than other inlaying technologies for the pan has better heat conductivility in the use. The substrate 4 mainly has two functions: firstly, the wear resistance of the bottom of the pan is increased, the service life of the pan bottom is prolonged, and the scrapping of the pan caused by the damage of the pan bottom of the iron pan is avoided; secondly, the high-temperature continuous capability of the pot is improved, the pot bottom of the existing iron pot is thin, when the pot leaves or is far away from flame burning, the temperature in the pot is reduced very quickly, the fast cooking of food is not facilitated, and particularly, when the pot is used for cooking, the application scene that water is required to be quickly evaporated into high-temperature water vapor to cook food instantly when encountering the pot with continuous high temperature is realized; the substrate 4 of this application can be under the same heating condition, the more lasting temperature of maintaining the pan.

Example 2:

in this embodiment, a further optimized arrangement is performed on the basis of embodiment 1, and further, as shown in fig. 8 to fig. 9 in the specification, in order to improve the heating and temperature raising capability of a pot with the same size, in this embodiment, the bottom surface of the substrate 4 extends outward from the outer surface of the pot bottom 11 and is at least 1mm higher than the outer surface of the pot bottom 11, and the bottom surface of the substrate 4 is provided with a plurality of guiding grooves 5 in a radial array layout. The diversion trench 5 can effectively increase the surface area of the contact between the unit pot bottom area and the flame, and can effectively absorb more heat, so that the pot bottom 11 is heated and the temperature is raised more quickly. The combustion characteristic of the flame is an upward flow along the outer edge of the solid, with rapid heat transfer during the flow. If an abnormal concave or convex structure exists in the smooth outer edge and the abnormal structure is not consistent with the propagation extension direction of the flame, the flame cannot effectively enter a blind area position generated by the concave or convex structure, and the abnormal concave or convex structure can block the flame and change the extension direction of the flame; if the change of the abnormal structure is consistent with the extending direction of the flame, the flame can be guided, so that the flame extends along the surface of the structure in a close fit manner, and a chimney effect is formed. Based on the principle, in order to form a flow guiding effect on flame and enable the periphery of the cookware to be attached to the flame to absorb more heat, the depth of the flow guiding groove 5 is gradually increased from one end close to the center of the substrate 4 to extend outwards along the length direction, and the width of the flow guiding groove 5 is gradually increased.

In order to further improve the heating capacity and avoid the change of direction caused by flame diversion blockage, it is preferable that a concave overflow port 6 is formed at the joint of the diversion trench 6 and the outer edge of the substrate 4, and the bottom of the overflow port 6 is flush with the bottom surface of the pan bottom 11, as shown in fig. 1-9. The overflow mouth 6 can effectual drainage, avoids flame turbulent flow or vortex to lead to flame and pan surface laminating degree not high.

In order to improve the integration of the insert-cast substrate 4 with the pot, as shown in fig. 9, the outer circumference of the substrate 4 has a plurality of lugs 41 formed integrally therewith, and the distance between the farthest end of any one of the lugs 41 and the center of the substrate 4 is smaller than the radius of the pot bottom 11. The effect of lug 41 is in order to promote integration casting back substrate 4 can form better a body structure with the pan, avoids substrate 4 to lead to droing because of the later stage use, and not hard up leads to damaging or heat transfer heat-conducting ability to reduce.

In order to avoid deformation or scalding of the handle due to high-temperature baking, the main handle 2 preferably comprises a fixing part connected with the pan body 1 and a handle part for holding, and an insulating ring is arranged between the fixing part and the handle part.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (6)

1. The utility model provides a difficult rust is difficult for integrative pan of indiscernible pig iron casting, includes pot body (1), and there are main handle (2) and vice handle (3) at pot body (1) symmetric position difference fixed mounting, its characterized in that: the pot body (1) comprises a pot bottom (11) and pot side walls (12), the inner surface of the pot bottom (11) is arranged in a plane, a substrate (4) is integrally cast and embedded in the pot bottom (11), and the whole or part of the bottom surface of the substrate (4) extends outwards to the outer surface of the pot bottom (11); the inner surface of the pan body (1) is provided with a mirror surface layer (112) formed by carburization, grinding and polishing and passivation.

2. The difficult rust of difficult sticky integrative pan of pig iron casting of claim 1 characterized by that: the bottom surface of the substrate (4) extends outwards from the outer surface of the pot bottom (11) and is at least 1mm higher than the outer surface of the pot bottom (11), and a plurality of diversion trenches (5) in a radioactive array layout are arranged on the bottom surface of the substrate (4).

3. The difficult rust of difficult sticky integrative pan of pig iron casting of claim 2 characterized by that: the depth of the flow guide groove (5) is gradually increased by extending outwards from one end close to the center of the substrate (4) along the length direction, and the width of the flow guide groove (5) is gradually increased.

4. The difficult rust of difficult sticky integrative pan of pig iron casting of claim 3 characterized by that: the joint of the diversion trench (5) and the outer edge of the substrate (4) forms an inward-concave overflow port (6), and the bottom of the overflow port (6) is flush with the bottom surface of the pot bottom (11).

5. A pig iron casting integral cooker not prone to rust and adhering as claimed in any one of claims 2-4, wherein: the outer circumference of the substrate (4) is provided with a plurality of lugs (41) which are integrally formed, and the distance between the farthest end of any lug (41) and the center of the substrate (4) is smaller than the radius of the pot bottom (11).

6. A pig iron casting integral cooker not prone to rust and adhering as claimed in any one of claims 1-4, wherein: the main handle (2) comprises a fixing part connected with the pot body (1) and a handle part used for holding, and a heat insulation ring is arranged between the fixing part and the handle part.

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