CN109316042A - It is a kind of not glue iron pan and preparation method thereof - Google Patents
It is a kind of not glue iron pan and preparation method thereof Download PDFInfo
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- CN109316042A CN109316042A CN201811075976.XA CN201811075976A CN109316042A CN 109316042 A CN109316042 A CN 109316042A CN 201811075976 A CN201811075976 A CN 201811075976A CN 109316042 A CN109316042 A CN 109316042A
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- pot body
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- iron pan
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/025—Vessels with non-stick features, e.g. coatings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
- C23C12/02—Diffusion in one step
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C8/00—Solid 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
- C23C8/06—Solid 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
- C23C8/36—Solid 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 using ionised gases, e.g. ionitriding
- C23C8/38—Treatment of ferrous surfaces
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (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)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention discloses a kind of preparation methods of not viscous iron pan, include the following steps: to carry out punching press to austenite stainless steel plate and common low carbon steel plate respectively, to form the first cookware matrix and the second cookware matrix；First cookware matrix and the second cookware matrix are welded, to form pot body；Wherein, the first cookware matrix covers at outside the second cookware matrix；Welding position and inner wall to pot body carry out ion Plasma Nitriding Treatment, to form plasma nitrided layer.It cannot can not met viscously simultaneously using not viscous iron pan made of the present invention, antirust and harmless performance, the usage experience of user can be effectively improved.Iron pan is not glued the present invention also provides a kind of.
Description
Technical field
The present invention relates to non-stick pan technical fields more particularly to a kind of not viscous iron pan and preparation method thereof.
Background technique
Currently, Domestic pot mainly has iron pan and two kinds of stainless-steel pan.Iron pan is generally formed by pig iron manufacture, without containing pair
The harmful chemical element of human body, still, when iron pan is cooked easily occurs the viscous pot phenomenon of food and iron pan easily gets rusty, so that iron pan is more difficult
Cleaning and maintenance.Contain a certain amount of evanohm element in existing stainless-steel pan, can make steel surface formed one layer it is firm
Metal is isolated with extraneous medium in oxide film, to have the advantages that be not easy to get rusty；In addition, including existing stainless-steel pan
Wall apply coating after can meet not there is a phenomenon where food glue pot；However, the intensity due to coating is not high, it is easy damaged or de-
It falls, equally also will appear food and glue pot phenomenon, and the elements such as chromium, nickel are harmful to the human body, stainless-steel pan, which is used for a long time, to be taken in
Excessive chromium, nickel element, and then be detrimental to health.Thus, existing iron pan and stainless-steel pan cannot can meet viscously simultaneously,
Antirust and harmless performance requirement.
Summary of the invention
In view of the above-mentioned problems, a kind of not viscous iron pan of the invention and preparation method thereof, cannot can not meet viscously simultaneously, antirust and
Harmless performance requirement can be effectively improved user experience.
In order to solve the above technical problems, a kind of preparation method of not viscous iron pan of the invention, includes the following steps:
Punching press is carried out to austenite stainless steel plate and common low carbon steel plate respectively, to form the first cookware matrix and second pot
Has matrix；
The first cookware matrix and the second cookware matrix are welded, to form pot body；Wherein, described first
Cookware matrix covers at outside the second cookware matrix；
Welding position and inner wall to the pot body carry out ion Plasma Nitriding Treatment, to form plasma nitrided layer.
Compared with prior art, in preparation method of the invention first cookware matrix by austenite stainless steel plate punching press shape
It is stamped and formed out at, the second cookware matrix by common low carbon steel plate, the first cookware matrix is covered at outside the second cookware matrix and welded
It connects to form pot body, since austenite stainless steel plate is corrosion-resistant, high temperature resistant and is not easy to get rusty, so that made of the preparation method
Pot body outside wall surface has stronger corrosion resistance, heat-resisting quantity and is not easy to get rusty；Meanwhile because common low carbon steel plate is free of chromium
And nickel element, and ferro element is beneficial to human body, so that the inner wall contacted in pot body with food is harmless, promotion is not glued
The safety of iron pan；Furthermore by ion Plasma Nitriding Treatment in the welding position and inner wall of pot body in preparation method of the invention
It is formed with plasma nitrided layer, which mainly exists in the form of solid solution under conditions of temperature is lower than 380 DEG C,
Hardness and strength are high, can increase the hardness and strength of pot body welding position and inner wall, cracky or do not fall off, so that the
Two cookware matrixes are isolated with extraneous medium, and the welding position of pot body and inner wall is avoided to get rusty；Furthermore the plasma nitrided layer is very
Densification, so that the inner wall of pot body is smooth, so that pot body is with non-stick.Thus, using made of preparation method of the invention
Not viscous iron pan cannot can not have viscously simultaneously, antirust and harmless performance, can be effectively improved the usage experience of user.
As an improvement of the above scheme, ion Plasma Nitriding Treatment is carried out to the inner wall of the pot body, included the following steps:
The pot body is placed in vacuum drying oven；
After the vacuum degree of the vacuum drying oven is extracted into 0.02Pa~0.5Pa, Ar gas is injected；
When the temperature in the vacuum drying oven reaches 200 DEG C, H is injected into the vacuum drying oven2Gas；
Controlling the vacuum degree in the vacuum drying oven is 20Pa~50Pa；
When the temperature in the vacuum drying oven is controlled at 330 DEG C~380 DEG C, N is injected2Gas, and 8~12 hours are kept the temperature,
To form plasma nitrided layer in the welding position of the pot body and inner wall.
As an improvement of the above scheme, it after the inner wall to the pot body carries out ion Plasma Nitriding Treatment processing, also wraps
Include following steps:
Ti-N permeation processing is carried out to the pot body, to form compisite seeping layer in the ionic nitriding layer surface.
As an improvement of the above scheme, the pot body is carried out in Ti-N permeation processing, the process conditions packet of Ti-N permeation
It includes:
Using Ti as target material, with N2Gas is ionic nitriding material, using twin cathode DC pulse dual power supply as power supply；
Wherein, the furnace wall ground connection of vacuum drying oven, the twin cathode DC pulse dual power supply include the first cathode power and the second cathode power,
First cathode power connects the target material, and second cathode power is connect with the pot body, the first cathode electricity
The operating voltage in source is 700V~800V, frequency 1000Hz, the operating voltage of second cathode power be 500V~600V,
Frequency is 1000Hz.
As an improvement of the above scheme, the thickness of the plasma nitrided layer be at least 0.1mm, hardness be 800Hv~
900Hv, the compisite seeping layer is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
As an improvement of the above scheme, the process conditions of the Ti-N permeation further include: the temperature in the vacuum drying oven is
420 DEG C~440 DEG C, the Ti-N permeation processing time is 10 minutes~20 minutes.
As an improvement of the above scheme, to the pot body welding position and inner wall carry out ion Plasma Nitriding Treatment it
Before, further include following steps:
Grinding process is carried out to the welding position, makes surface roughness Ra3.2~Ra6.3 of the welding position；
Just polishing treatment is carried out to the inner wall of the welding position after the polishing and the pot body, makes its surface roughness
For Ra0.4~Ra0.8；
Further include following steps before carrying out Ti-N permeation processing to the pot body:
Finishing polish processing is carried out to the plasma nitrided layer, makes the roughness Ra0.1~Ra0.2 on its surface.
In order to solve the above technical problems, not gluing iron pan the present invention also provides a kind of, the not viscous iron pan is using above-mentioned any
A kind of preparation method is made.
In order to solve the above technical problems, not gluing iron pan the present invention also provides another, comprising:
Pot body, have using the first cookware matrix made of austenite stainless steel plate and be made of ordinary steel plate the
Two cookware matrixes, the first cookware matrix cover at outside the second cookware matrix, and the first cookware matrix and described
Second cookware matrix is connected；
Plasma nitrided layer is set on the junction and inner wall of the pot body.
Compared with prior art, not viscous iron pan of the invention includes pot body and plasma nitrided layer, wherein pot body, which has, to be used
The first cookware matrix that austenite stainless steel plate is stamped and formed out and the second cookware base being stamped and formed out using common low carbon steel plate
Body, and the first cookware matrix covers at outer the second cookware matrix, the first cookware matrix and the second cookware matrix and is connected, due to Austria
Family name's body stainless steel plate is corrosion-resistant, high temperature resistant and is not easy to get rusty, so that pot body outside wall surface has stronger corrosion resistance, resistance to height
It warm nature and is not easy to get rusty；Meanwhile because common low carbon steel plate is free of chromium and nickel element, and ferro element is beneficial to human body, so that
The inner wall contacted in pot body with food is harmless, promotes the safety of not viscous iron pan；Furthermore pot body of the invention
It is provided with plasma nitrided layer on junction and inner wall, the plasma nitrided layer is under conditions of temperature is lower than 380 DEG C mainly with solid
The form of solution exists, and hardness and strength are high, can increase the hardness and strength of pot body welding position and inner wall, be not easy
Breakage falls off, so that the second cookware matrix is isolated with extraneous medium, the welding position of pot body and inner wall is avoided to get rusty；Again
Person, the plasma nitrided layer is very fine and close, so that the inner wall of pot body is smooth, so that pot body is with non-stick.Thus, the present invention is not
Viscous iron pan cannot can not have viscously simultaneously, antirust and harmless performance, can be effectively improved the usage experience of user.
As an improvement of the above scheme, it is formed on the surface of the not viscous plasma nitrided layer of the iron pan in the pot body multiple
Close infiltration layer.
As an improvement of the above scheme, the thickness of the plasma nitrided layer be at least 0.1mm, hardness be 800Hv~
900Hv, the compisite seeping layer is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of the preparation method of not viscous iron pan of the embodiment of the present invention 1.
Fig. 2 is a kind of process flow chart of the preparation method of not viscous iron pan of the embodiment of the present invention 2.
Fig. 3 is a kind of structural schematic diagram of not viscous iron pan of the embodiment of the present invention 4.
Fig. 4 is the enlarged structure schematic diagram in the portion A in the embodiment of the present invention 4.
Specific embodiment
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.But the present invention can be with
It is different from the other modes of this description much to implement, those skilled in the art can be without violating the connotation of the present invention
Similar popularization is done, therefore the present invention is not limited by the specific embodiments disclosed below.
Clear, complete description is carried out to technical solution of the present invention with attached drawing combined with specific embodiments below.
Embodiment 1
As shown in Figure 1, being a kind of process flow chart of the preparation method of not viscous iron pan of the embodiment of the present invention 1.
The preparation method of the not viscous iron pan, includes the following steps:
S1, punching press is carried out to austenite stainless steel plate and common low carbon steel plate respectively, to form the first cookware matrix and the
Two cookware matrixes；
Wherein, austenite stainless steel plate uses 304 stainless steel plates or 316 stainless steel plates；It is carbon containing in common low carbon steel plate
Amount is less than 0.25%, so that common low carbon steel plate has good toughness, to be stamped and formed out the first cookware matrix.
S2, the first cookware matrix and the second cookware matrix are welded, to form pot body；Wherein, the first cookware matrix
It covers at outside the second cookware matrix；
S3, ion Plasma Nitriding Treatment is carried out to the welding position and inner wall of pot body, to form plasma nitrided layer.
Compared with prior art, in preparation method of the invention first cookware matrix by austenite stainless steel plate punching press shape
It is stamped and formed out at, the second cookware matrix by common low carbon steel plate, the first cookware matrix is covered at outside the second cookware matrix and welded
It connects to form pot body, since austenite stainless steel plate is corrosion-resistant, high temperature resistant and is not easy to get rusty, so that made of the preparation method
Pot body outside wall surface has stronger corrosion resistance, heat-resisting quantity and is not easy to get rusty；Meanwhile because common low carbon steel plate is free of chromium
And nickel element, and ferro element is beneficial to human body, so that the inner wall contacted in pot body with food is harmless, promotion is not glued
The safety of iron pan；Furthermore by ion Plasma Nitriding Treatment in the welding position and inner wall of pot body in preparation method of the invention
It is formed with plasma nitrided layer, which mainly exists in the form of solid solution under conditions of temperature is lower than 380 DEG C,
Hardness and strength are high, can increase the hardness and strength of pot body welding position and inner wall, cracky or do not fall off, so that the
Two cookware matrixes are isolated with extraneous medium, and the welding position of pot body and inner wall is avoided to get rusty；Furthermore the plasma nitrided layer is very
Densification, so that the inner wall of pot body is smooth, so that pot body is with non-stick.Thus, using made of preparation method of the invention
Not viscous iron pan cannot can not have viscously simultaneously, antirust and harmless performance, can be effectively improved the usage experience of user.
Wherein, in above-mentioned implementation 1, it is preferable that step S3 includes the following steps:
S31, pot body is placed in vacuum drying oven；
S32, after the vacuum degree of vacuum drying oven is extracted into 0.02Pa~0.5Pa, Ar gas is injected；
S33, when the temperature in vacuum drying oven reaches 200 DEG C, inject H into the vacuum drying oven2Gas；
Vacuum degree in S34, control vacuum drying oven is 20Pa~50Pa；
S35, when in vacuum drying oven temperature control at 330 DEG C~380 DEG C when, inject N2Gas, and 8~12 hours are kept the temperature,
To form plasma nitrided layer in the welding position of pot body and inner wall, wherein the thickness of the plasma nitrided layer be at least 0.1mm,
Hardness is 800Hv~900Hv.
Embodiment 2
As shown in Fig. 2, being a kind of process flow chart of the preparation method of not viscous iron pan of the embodiment of the present invention 2.
The preparation method of the embodiment of the present invention 2 is other than comprising the Overall Steps in embodiment 1, to the pot body
Inner wall carry out ion Plasma Nitriding Treatment processing after, further include following steps:
S4, Ti-N permeation processing is carried out to pot body, to form compisite seeping layer in ionic nitriding layer surface.
In the preparation method of embodiment 2, by carrying out Ti-N permeation processing to pot body, so that covering pot body welding position
It is formed with compisite seeping layer with the surface of the plasma nitrided layer of inner wall, the thickness of pot body weld part and inner wall can be effectively increased,
Meanwhile the intensity and hardness of the compisite seeping layer are greater than plasma nitrided layer, and then further increase pot body welding position and inner wall
The intensity and hardness in face, so that pot body is not easy to wear, so as to carry out effective antirust to pot body welding position and inner wall
Protection extends the service life of not viscous iron pan.
Preferably, in step S4, the process conditions of Ti-N permeation include: using Ti as target material, with N2Gas is ion
Nitride material, using twin cathode DC pulse dual power supply as power supply, the temperature in vacuum drying oven is 420 DEG C~440 DEG C, and Ti-N is total
Seeping the processing time is 10 minutes~20 minutes；Wherein, the furnace wall of vacuum drying oven is anode, and the furnace wall of vacuum drying oven is grounded；Twin cathode
DC pulse dual power supply includes the first cathode power and the second cathode power, and the first cathode power connects target material, the second cathode
Power supply is connect with the pot body, and the operating voltage of the first cathode power is 700V~800V, frequency 1000Hz, the second cathode electricity
The operating voltage in source is 500V~600V, frequency 1000Hz.
Wherein, pot body is formed compound after above-mentioned steps S4 carries out Ti-N permeation processing in ionic nitriding layer surface
Infiltration layer is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
Preferably, smooth, beautiful in order to make not glue iron pan, in the above-described embodiments, in welding position to pot body and interior
Further include following steps before wall surface carries out ion Plasma Nitriding Treatment:
Grinding process is carried out to welding position, makes surface roughness Ra3.2~Ra6.3 of welding position；
Just polishing treatment is carried out to the inner wall of the welding position after polishing and pot body, makes its surface roughness Ra0.4
~Ra0.8.
Preferably, in the above-described embodiments, preferably non-stick in order to have the outside wall surface for not gluing iron pan, this does not glue iron
The preparation method of pot further includes following steps after carrying out grinding process to welding position:
Stainless steel wire drawing polishing is carried out to pot body outside wall surface.
Preferably, in the above-described embodiments, in order to make not glue iron pan have preferably it is non-stick, to pot body carry out Ti-N
Further include following steps before permeation processing:
Finishing polish processing is carried out to plasma nitrided layer, makes the roughness Ra0.1~Ra0.2 on its surface.
Iron pan is not glued the present invention also provides a kind of, which is made of above-mentioned preparation method.
Embodiment 3
A kind of not viscous iron pan of the invention includes: pot body, is had using the first cookware base made of austenite stainless steel plate
Second cookware matrix made of body and use common low carbon steel plate, the first cookware matrix cover at outside the second cookware matrix, and
First cookware matrix and the second cookware matrix are connected；Plasma nitrided layer is set on the junction and inner wall of pot body.
Compared with prior art, not viscous iron pan of the invention includes pot body and plasma nitrided layer, wherein pot body, which has, to be used
The first cookware matrix that austenite stainless steel plate is stamped and formed out and the second cookware base being stamped and formed out using common low carbon steel plate
Body, and the first cookware matrix covers at outer the second cookware matrix, the first cookware matrix and the second cookware matrix and is connected, due to Austria
Family name's body stainless steel plate is corrosion-resistant, high temperature resistant and is not easy to get rusty, so that pot body outside wall surface has stronger corrosion resistance, resistance to height
It warm nature and is not easy to get rusty；Meanwhile because common low carbon steel plate is free of chromium and nickel element, and ferro element is beneficial to human body, so that
The inner wall contacted in pot body with food is harmless, promotes the safety of not viscous iron pan；Furthermore pot body of the invention
It is provided with plasma nitrided layer on junction and inner wall, the plasma nitrided layer is under conditions of temperature is lower than 380 DEG C mainly with solid
The form of solution exists, and hardness and strength are high, can increase the hardness and strength of pot body welding position and inner wall, be not easy
Breakage falls off, so that the second cookware matrix is isolated with extraneous medium, the welding position of pot body and inner wall is avoided to get rusty；Again
Person, the plasma nitrided layer is very fine and close, so that the inner wall of pot body is smooth, so that pot body is with non-stick.Thus, the present invention is not
Viscous iron pan cannot can not have viscously simultaneously, antirust and harmless performance, can be effectively improved the usage experience of user.
Embodiment 4
As shown in figure 3, being a kind of structural schematic diagram of not viscous iron pan of the embodiment of the present invention 4.
As shown in Figure 3 and Figure 4, the not viscous iron pan of the embodiment of the present invention 4 is in addition to including whole building blocks in embodiment 3
Except, further includes: compisite seeping layer 13 is formed on the surface of the plasma nitrided layer 12 of pot body 1.
In example 4, non-stick pan is followed successively by austenitic stainless steel layer 10, common low carbon stainless steel by outside wall surface to inner wall
Layer 11, plasma nitrided layer 12 and compisite seeping layer 13.The compisite seeping layer covers junction and the inner wall of pot body, can effectively increase pot
The thickness of body weld part and inner wall, meanwhile, the intensity and hardness of the compisite seeping layer are greater than plasma nitrided layer, and then further increase
The intensity and hardness of pot body welding position and inner wall are added, so that pot body is not easy to wear, so as to pot body welding position
Effective corrosion protection is carried out with inner wall, extends the service life of not viscous iron pan.
Preferably, the thickness of the plasma nitrided layer is at least 0.1mm, hardness is 800Hv~900Hv, the compisite seeping layer
It is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, therefore
All contents without departing from technical solution of the present invention, it is made to the above embodiment according to the technical essence of the invention any simply to repair
Change, equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of preparation method of not viscous iron pan, which comprises the steps of:
Punching press is carried out to austenite stainless steel plate and common low carbon steel plate respectively, to form the first cookware matrix and the second cookware base
Body；
The first cookware matrix and the second cookware matrix are welded, to form pot body；Wherein, first cookware
Matrix covers at outside the second cookware matrix；
Welding position and inner wall to the pot body carry out ion Plasma Nitriding Treatment, to form plasma nitrided layer.
2. preparation method as described in claim 1, which is characterized in that carried out at ionic nitriding to the inner wall of the pot body
Reason, includes the following steps:
The pot body is placed in vacuum drying oven；
After the vacuum degree of the vacuum drying oven is extracted into 0.02Pa~0.5Pa, Ar gas is injected；
When the temperature in the vacuum drying oven reaches 200 DEG C, H is injected into the vacuum drying oven2Gas；
Controlling the vacuum degree in the vacuum drying oven is 20Pa~50Pa；
When the temperature in the vacuum drying oven is controlled at 330 DEG C~380 DEG C, N is injected2Gas, and 8~12 hours are kept the temperature, in institute
The welding position and inner wall for stating pot body form plasma nitrided layer.
3. preparation method as described in claim 1, which is characterized in that carried out at ionic nitriding in the inner wall to the pot body
Further include following steps after reason processing:
Ti-N permeation processing is carried out to the pot body, to form compisite seeping layer in the ionic nitriding layer surface.
4. preparation method as claimed in claim 3, which is characterized in that carried out in Ti-N permeation processing to the pot body, Ti-N
The process conditions of permeation include:
Using Ti as target material, with N2Gas is ionic nitriding material, using twin cathode DC pulse dual power supply as power supply；Wherein,
The furnace wall of vacuum drying oven is grounded, and the twin cathode DC pulse dual power supply includes the first cathode power and the second cathode power, described
First cathode power connects the target material, and second cathode power is connect with the pot body, first cathode power
Operating voltage is 700V~800V, frequency 1000Hz, and the operating voltage of second cathode power is 500V~600V, frequency
For 1000Hz.
5. preparation method as claimed in claim 4, which is characterized in that the thickness of the plasma nitrided layer is at least 0.1mm, hard
Degree is 800Hv~900Hv, and the compisite seeping layer is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
6. preparation method as claimed in claim 3, which is characterized in that the pot body welding position and inner wall carry out
Further include following steps before ion Plasma Nitriding Treatment:
Grinding process is carried out to the welding position, makes surface roughness Ra3.2~Ra6.3 of the welding position；
Just polishing treatment is carried out to the inner wall of the welding position after the polishing and the pot body, makes its surface roughness
Ra0.4~Ra0.8；
Further include following steps before carrying out Ti-N permeation processing to the pot body:
Finishing polish processing is carried out to the plasma nitrided layer, makes the roughness Ra0.1~Ra0.2 on its surface.
7. a kind of do not glue iron pan, which is characterized in that be made of such as preparation method according to any one of claims 1 to 6.
8. a kind of do not glue iron pan characterized by comprising
Pot body has second pot for using the first cookware matrix made of austenite stainless steel plate and being made of ordinary steel plate
Has matrix, the first cookware matrix covers at outside the second cookware matrix, and the first cookware matrix and described second
Cookware matrix is connected；
Plasma nitrided layer is set on the junction and inner wall of the pot body.
9. not gluing iron pan as claimed in claim 8, which is characterized in that formed on the surface of the plasma nitrided layer of the pot body
There is compisite seeping layer.
10. as claimed in claim 9 not glue iron pan, which is characterized in that the thickness of the plasma nitrided layer be at least 0.1mm,
Hardness is 800Hv~900Hv, and the compisite seeping layer is 1000Hv~1300Hv with a thickness of 8 μm~15 μm, hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075976.XA CN109316042A (en) | 2018-09-14 | 2018-09-14 | It is a kind of not glue iron pan and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075976.XA CN109316042A (en) | 2018-09-14 | 2018-09-14 | It is a kind of not glue iron pan and preparation method thereof |
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| Publication Number | Publication Date |
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| CN109316042A true CN109316042A (en) | 2019-02-12 |
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|---|---|---|---|
| CN201811075976.XA Pending CN109316042A (en) | 2018-09-14 | 2018-09-14 | It is a kind of not glue iron pan and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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