CN109924886A - A kind of heating utensil and preparation method thereof - Google Patents
A kind of heating utensil and preparation method thereof Download PDFInfo
- Publication number
- CN109924886A CN109924886A CN201711352492.0A CN201711352492A CN109924886A CN 109924886 A CN109924886 A CN 109924886A CN 201711352492 A CN201711352492 A CN 201711352492A CN 109924886 A CN109924886 A CN 109924886A
- Authority
- CN
- China
- Prior art keywords
- powder
- tie coat
- heating utensil
- sticking lining
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000004411 aluminium Substances 0.000 claims abstract description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 43
- 239000007921 spray Substances 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 22
- 238000007750 plasma spraying Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 10
- 229910001120 nichrome Inorganic materials 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 5
- 238000010411 cooking Methods 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000011247 coating layer Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000007790 scraping Methods 0.000 abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 229910052786 argon Inorganic materials 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- 239000011159 matrix material Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000005422 blasting Methods 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 150000002431 hydrogen Chemical class 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004093 laser heating Methods 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000013547 stew Nutrition 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000003678 scratch resistant effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004813 Perfluoroalkoxy alkane Substances 0.000 description 1
- SCKXCAADGDQQCS-UHFFFAOYSA-N Performic acid Chemical compound OOC=O SCKXCAADGDQQCS-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013320 baculovirus expression vector system Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N propyl ethylene Natural products CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Cookers (AREA)
Abstract
The present invention relates to household appliance technical field, a kind of heating utensil and preparation method thereof is disclosed.The heating utensil includes: the substrate (1) being heated；The tie coat (2) being formed on substrate (1) inner surface；And it is formed in the non-sticking lining (3) on the tie coat (2) upper surface；Wherein, the tie coat (2) can be improved the bond strength of the non-sticking lining (3) Yu the substrate (1), and the non-sticking lining (3) is the coating containing PFA, metallic aluminium and aluminium oxide.Heating utensil of the present invention surface hardness with higher, non-sticking lining binding force be higher, corrosion resistance and good, scraping and wiping resistance performance are good.
Description
Technical field
The present invention relates to household appliance technical fields, more particularly to a kind of heating utensil and preparation method thereof.
Background technique
In the market, electric cooker, inner container of electric pressure cooker surface are all made of with hydrophobic non-sticking lining, and non-sticking lining point
It is preferable for fluororesin or the silica hydrophobic coating of collosol and gel, the hydrophobic performance of both coatings, it is possible to provide it is good not
Viscosity, but also have big defect, if fluororesin layer surface hardness is low, not scratch-resistant, and ceramic coating is with using the time
Extension, hydrophobic variation non-stick, and its corrosion resisting property is poor, two kinds of coating service lifes are shorter, and market powers on meal
As soon as stewing, liner coating is good to be can be used year or so, the failure phenomenons such as will appear blistering, falls off poor only some months, and surface
Non-sticking lining once fail, liner cannot reuse, and the basic reason of existing non-sticking lining service life difference is, fluorine tree
Binding force between rouge coating, silicon oxide ceramics layer and substrate is low, surface hardness is small, scraping and wiping resistance performance is poor, therefore is badly in need of in the industry
Improve the comprehensive performance of non-sticking lining.
Summary of the invention
The purpose of the invention is to overcome, existing non-sticking lining is low with substrate binding force, surface hardness is small, scratch-resistant
The defect of performance difference provides a kind of heating utensil and preparation method thereof.
To achieve the goals above, one aspect of the present invention provides a kind of heating utensil, which includes:
The substrate being heated；
The tie coat being formed on the base interior surface；And
The non-sticking lining being formed on the tie coat upper surface；
Wherein, the tie coat can be improved the bond strength of the non-sticking lining Yu the substrate, the not snearing
Layer is to contain PFA (tetrafluoroethylene-perfluoro propyl ethylene copolymer, also known as soluble poly tetrafluoroethene), metallic aluminium and aluminium oxide
Coating.
Preferably, the tie coat is one of aluminum oxide layer, NiCr alloy-layer and NiCoCrAlY alloy-layer
Or it is a variety of.
Preferably, the tie coat with a thickness of 10-50 μm, roughness is 3-5 μm.
Preferably, the non-sticking lining is formed by the mixture containing PFA powder and metallic aluminium powder by thermal spraying.
Preferably, the non-sticking lining with a thickness of 20-200 μm, roughness is 0.5-1 μm.
Preferably, the heating utensil is inner container of electric cooker, inner tub of pressure cooker, frying pan, baking tray or cooking machine.
Second aspect of the present invention provides the method for preparing above-mentioned heating utensil, method includes the following steps:
(1) tie coat is formed by hot spray process on an inside surface of the base；
(2) pass through hot spray process in the upper surface of tie coat using the mixture containing PFA powder and metallic aluminium powder
Upper formation non-sticking lining.
Preferably, in the mixture containing PFA powder and metallic aluminium powder, the content of PFA powder is 50-75 weight
% is measured, the content of the metallic aluminium powder is 25-50 weight %.
Preferably, in step (2), the hot spray process is plasma spraying.
It is highly preferred that the operating condition of the plasma spraying include: initial preheating temperature be 120-200 DEG C, spraying away from
From for 50-150mm, spray angle is 60-90 °, and powder powder sending quantity is 3.5-10g/min, spray power 20-50kW.
In heating utensil of the present invention, aluminium oxide and PFA are contained in non-sticking lining, makes it have high rigidity and good
Good hydrophobicity；The tie coat of non-sticking lining lower part can play the bond strength for improving non-sticking lining and substrate, provide good
Good corrosion resisting property.Therefore, have according to the inner surface of heating utensil of the present invention good hydrophobic non-stick, high resistance to
Scratch performance, good corrosion resisting property, and non-sticking lining and substrate bond strength are higher.
Detailed description of the invention
Fig. 1 is the schematic diagram of a layer structure of heating utensil of the present invention.
Description of symbols
1 substrate, 2 tie coat
3 non-sticking linings
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower " is typically referred to reference to attached
It is upper and lower shown in figure；" inside and outside " refers to the inside and outside of the profile relative to each component itself.
As shown in Figure 1, heating utensil of the present invention includes:
The substrate 1 being heated；
The tie coat 2 being formed on 1 inner surface of substrate；And
The non-sticking lining 3 being formed on 2 upper surface of tie coat.
In the present invention, the tie coat 2 is formed between non-sticking lining 3 and substrate 1, is used for the non-sticking lining 3
With the bond strength of the substrate 1.There is no particular limitation for the material of the tie coat 2, as long as enabling to non-sticking lining 3
Higher binding force is formed between substrate 1.In the preferred case, the tie coat 2 is Al2O3Layer, NiCr alloy-layer
With one of NiCoCrAlY alloy-layer or a variety of.The tie coat 2 can be single layer structure, be also possible to two layers or more
Composite construction.The material of the NiCr alloy-layer for example can be Cr15Ni60, Cr20Ni80 or Cr20Ni35.It is described
The material of NiCoCrAlY alloy-layer for example can be NiCo23Cr17Al12Y0.5.
In the present invention, the thickness of the tie coat 2 can be 10-50 μm, specifically, such as can be 10 μm, 15 μ
M, in the range that any two in 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm and these point values are constituted
Arbitrary value.
In the present invention, the roughness of the tie coat 2 can be 3-5 μm, specifically, such as can be 3 μm, 3.2 μ
M, any two institute in 3.4 μm, 3.6 μm, 3.8 μm, 4 μm, 4.2 μm, 4.4 μm, 4.6 μm, 4.8 μm, 5 μm and these point values
Arbitrary value in the range of composition.Herein, the roughness of coating can be detected using roughness measuring instrument.
In the present invention, the non-sticking lining 3 is the coating containing PFA, metallic aluminium and aluminium oxide, which has both
There are high rigidity, good hydrophobicity and high bond strength.In the preferred case, the non-sticking lining 3 is by containing PFA powder and gold
The mixture for belonging to aluminium powder is formed by thermal spraying.The hot spray process is preferably plasma spraying method, more preferably high temperature etc.
Plasma spray method.During forming non-sticking lining by hot spray process, part metals aluminium can aoxidize to form aluminium oxide, so that
It include metallic aluminium, aluminium oxide and PFA in the non-sticking lining of formation.
In the present invention, the thickness of the non-sticking lining 3 can be 20-200 μm, specifically, such as can be 20 μm, 40
μm, 60 μm, 80 μm, 100 μm, 120 μm, 140 μm, 160 μm, 180 μm, any two institute structure in 200 μm and these point values
At range in arbitrary value.
In the present invention, the roughness of the non-sticking lining 3 can be 0.5-1 μm, specifically, for example, can for 0.5 μm,
The arbitrary value in range that any two in 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, 1 μm and these point values are constituted.
In the present invention, the material of the substrate can be the metal materials such as stainless steel, aluminium, aluminium alloy, titanium alloy, pottery
Porcelain, glass or multilayer (including bilayer and three layers or more) metallic composite.Wherein, multi-layer metal composite material can be for not
Become rusty steel/aluminium, stainless steel/copper, stainless steel/aluminium/copper etc..The thickness of the substrate can be 0.5-6mm.
In the present invention, the heating utensil can be inner container of electric cooker, inner tub of pressure cooker, frying pan, baking tray or cooking machine.
It is of the present invention heating utensil preparation method the following steps are included:
(1) tie coat 2 is formed on the inner surface of substrate 1 by hot spray process；
(2) pass through hot spray process in the upper surface of tie coat 2 using the mixture containing PFA powder and metallic aluminium powder
Upper formation non-sticking lining 3.
In step (1), the hot spray process can be with the plasma spray technology of this field routine, such as plasma spraying method or super
Velocity of sound flame spraying.Particularly, when the tie coat 2 is alloy-layer (such as NiCr alloy-layer or NiCoCrAlY alloy-layer)
When, it is preferred to use plasma spraying method or supersonic flame spraying method.
In step (2), in the mixture containing PFA powder and metallic aluminium powder, the content of PFA powder can be with
For 50-80 weight %, preferably 60-70 weight %；The content of the metallic aluminium powder is 20-50 weight %, preferably 30-40
Weight %.
In the present invention, the average grain diameter of the PFA powder can be 5-80 μm, preferably 10-50 μm.
In the present invention, the average grain diameter of the metallic aluminium powder can be 5-100 μm, preferably 20-60 μm.
In step (2), the hot spray process is preferably plasma spraying.It is further preferred that the plasma spraying
Operating condition include: initial preheating temperature be 120-200 DEG C, spray distance 50-150mm, spray angle be 60-90 °, powder
Last powder sending quantity is 3.5-10g/min, spray power 20-50kW.
In the present invention, the preparation method of the heating utensil can also include: before forming tie coat 2, to institute
Substrate 1 is stated to be pre-processed.The pretreated method can be the processing method of this field routine.In a kind of embodiment
In, the preprocessing process may include blasting treatment and ungrease treatment.Do not have for the method for blasting treatment and ungrease treatment
It is special to limit, it can be respectively various methods commonly used in the art.For example, the method for blasting treatment includes: using 60-150
Purpose sand grains (such as glass sand, brown steel sand, black brown jade, white fused alumina, diamond dust), control Jet Stream pressure is 0.2-
0.9MPa, obtained roughness are about Ra 2-8 μm.It, need to be by the remaining fine-powder of base interior surface after blasting treatment
Particle etc. removes, and for the method for removing, there is no particular limitation, can be blown clean with high pressure draught or be removed by washing
It goes, this is well known to the skilled person, and details are not described herein.For example, the method for ungrease treatment can successively include alkali
It washes, pickling, washing and high temperature drying (such as 200-450 DEG C drying 10-15min).
The present invention will be described in detail by way of examples below.
In following preparation example and embodiment, unless otherwise instructed, each material used is commercially available.
PFA powder is purchased from Dajin Fluorine Coating (Shanghai) Co., Ltd., and average grain diameter is 15 μm.
Alumina powder is purchased from Beijing Sang Yao Science and Technology Development Co., Ltd., and average grain diameter is 25 μm.
Metallic aluminium powder is purchased from Beijing Sang Yao Science and Technology Development Co., Ltd., and average grain diameter is 30 μm.
Embodiment 1
(1) aluminum pot matrix is pre-processed, wherein pretreated method includes: a) oil removing 8 minutes at a temperature of 55 DEG C；
B) it is cleaned with deionized water；C) 100 DEG C of drying 5min；D) the brown steel sand for using 60-80 mesh, in the Jet Stream pressure of 0.6MPa
Under to aluminum pot matrix surface carry out blasting treatment make 3 μm of its surface roughness Ra, it is then with air-flow that pot body matrix surface is residual
The powder particle stayed is blown clean；E) with the NaOH solution of 40 weight % at 80 DEG C alkali cleaning 1 minute；F) with the nitric acid of 20 weight %
In solution and 3 minutes；G) it after being cleaned with deionized water, is dried 12 minutes at 300 DEG C；
(2) aluminum oxide powder is subjected to plasma spraying processing, it is (thick to form tie coat on base inner surface
Degree is 30 μm, and roughness is 4 μm), wherein the condition of plasma spraying processing includes: that initial preheating temperature is 150 DEG C, spraying
Distance is 100mm, and spray angle is 80 ° ± 1 °, and powder powder sending quantity is 6g/min, and spray power 40kW, main gas is argon gas, auxiliary
Gas is hydrogen, hydrogen flowing quantity 5L/min, argon flow 30L/min.
(3) the PFA powder of 3 parts by weight and the metallic aluminium powder of 1 parts by weight are mixed, and is carried out with obtained mixed powder
Plasma spraying processing, to form non-sticking lining (with a thickness of 100 μm, roughness is 1 μm) on the upper surface of tie coat,
In, it is 140 DEG C, spray distance 90-100mm that the condition of plasma spraying processing, which includes: initial preheating temperature, and spray angle is
80-90 °, powder powder sending quantity is 6g/min, spray power 30kW, and main gas is argon gas, auxiliary gas is hydrogen, hydrogen flowing quantity 3L/
Min, argon flow 40L/min.
Embodiment 2
(1) stainless-steel pan matrix is pre-processed, wherein pretreated method includes: a) oil removing 8 at a temperature of 55 DEG C
Minute；B) it is cleaned with deionized water；C) 100 DEG C of drying 5min；D) the brown steel sand for using 60-80 mesh, in the jet gas of 0.8MPa
Carrying out blasting treatment to stainless-steel pan matrix surface under flowing pressure makes 3 μm of its surface roughness Ra, then with air-flow by pot body
The remaining powder particle of matrix surface is blown clean；E) with the NaOH solution of 40 weight % at 80 DEG C alkali cleaning 1 minute；F) with 20 weights
Measure % nitric acid solution in and 3 minutes；G) it after being cleaned with deionized water, is dried 11 minutes at 375 DEG C；
(2) by the nichrome powder of the chromium of nickel and 60 parts by weight containing 15 parts by weight, gained powder is subjected to plasma
Spray treatment, to form tie coat on base inner surface (with a thickness of 20 μm, roughness is 5 μm), wherein plasma spraying
The condition of processing includes: that initial preheating temperature is 160 DEG C, spray distance 80-90mm, and spray angle is 76 ° ± 1 °, and powder is sent
Powder amount is 5g/min, spray power 35kW, and main gas is argon gas, auxiliary gas is hydrogen, hydrogen flowing quantity 4L/min, and argon flow is
30L/min。
(3) the PFA powder of 3 parts by weight and the metallic aluminium powder of 1 parts by weight are mixed, and is carried out with obtained mixed powder
Plasma spraying processing, to form non-sticking lining (with a thickness of 100 μm, roughness is 1 μm) on the upper surface of tie coat,
In, it is 140 DEG C, spray distance 90-100mm that the condition of plasma spraying processing, which includes: initial preheating temperature, and spray angle is
80-90 °, powder powder sending quantity is 6g/min, spray power 30kW, and main gas is argon gas, auxiliary gas is hydrogen, hydrogen flowing quantity 3L/
Min, argon flow 40L/min.
Embodiment 3
(1) stainless-steel pan matrix is pre-processed, wherein pretreated method includes: a) oil removing 8 at a temperature of 55 DEG C
Minute；B) it is cleaned with deionized water；C) 100 DEG C of drying 5min；D) the brown steel sand for using 60-80 mesh, in the jet gas of 0.8MPa
Carrying out blasting treatment to stainless-steel pan matrix surface under flowing pressure makes 4 μm of its surface roughness Ra, then with air-flow by pot body
The remaining powder particle of matrix surface is blown clean；E) with the NaOH solution of 40 weight % at 80 DEG C alkali cleaning 1 minute；F) with 20 weights
Measure % nitric acid solution in and 3 minutes；G) it after being cleaned with deionized water, is dried 10 minutes at 450 DEG C；
(2) NiCoCrAlY alloy-layer is formed as tie coat (thickness on base inner surface by plasma spraying hair
Be 40 μm, roughness be 3 μm), wherein plasma spraying processing condition include: initial preheating temperature be 200 DEG C, spraying away from
From for 120mm, spray angle is 84 ° ± 1 °, and powder powder sending quantity is 7g/min, spray power 40kW, spraying current 600A,
Coating thickness is 250 μm；Main gas is argon gas, auxiliary gas is hydrogen, hydrogen flowing quantity 8L/min, argon flow 50L/min.
(3) the PFA powder of 3 parts by weight and the metallic aluminium powder of 1 parts by weight are mixed, and is carried out with obtained mixed powder
Plasma spraying processing, to form non-sticking lining (with a thickness of 100 μm, roughness is 1 μm) on the upper surface of tie coat,
In, it is 140 DEG C, spray distance 90-100mm that the condition of plasma spraying processing, which includes: initial preheating temperature, and spray angle is
80-90 °, powder powder sending quantity is 6g/min, and spray power 30kW, spraying current 600A, main gas is argon gas, auxiliary gas is hydrogen
Gas, hydrogen flowing quantity 3L/min, argon flow 40L/min.
Comparative example 1
Cookware is prepared according to the method for embodiment 1, the difference is that not using metal during preparing non-sticking lining
Aluminium powder, and directly non-sticking lining is formed using electrostatic spraying PFA powder.
Comparative example 2
Cookware is prepared according to the method for embodiment 1, the difference is that not formation tie coat described in implementation steps (2)
Process, and directly step (1) preparation matrix inner surface on form non-sticking lining.
Test case
The relevant parameter and performance of the cookware of each embodiment and comparative example preparation are measured according to following methods.
1, it coating surface hardness: coating surface hardness: (is purchased from according to GB/T 6739-1996 film determination of pencil hardness method
Guangzhou Sheng Hua Industrial Co., Ltd., model BEVS 1301) measurement cookware surface covering pencil hardness.It the results are shown in Table 1.
2, non-sticking lining binding force coating binding force: is measured according to G9 8642-88.It the results are shown in Table 1.
3, the scratch resistance of coating: the washing water for being 5 weight % with dish washing liquid compound concentration, 3M (7447C) scouring pad are born
Weight 2.5kgf, the one way that swings are 1 time, every 250 replacements scouring pad, check whether coating falls off either after scraping every time
No exposing substrate (to expose >=10 lines as termination test), and record abrasion resistance.It the results are shown in Table 1.
4, acid and alkali resistance, salt:
It is acidproof: the acetum that concentration is 5 weight % is added into interior pot at interior pot inner wall maximum scale water level,
Interior pot is put into energization closing lid laser heating in corresponding stew and boils (holding fluidized state) 10 minutes, then 100 DEG C of heat-insulation soakings
24 hours, interior pot is cleaned up after the test, visually inspects coating surface changing condition, the results are shown in Table 2.
It is alkaline-resisting: the sodium hydroxide solution that concentration is 0.5 weight % is added into interior pot until interior pot inner wall maximum scale
At water level, interior pot is put into energization closing lid laser heating in corresponding stew and boils and (keeps fluidized state) 10 minutes, is then protected for 100 DEG C
Temperature is impregnated 24 hours, after the test cleans up interior pot, is visually inspected coating surface changing condition, be the results are shown in Table 2.
Salt tolerant: the sodium chloride solution that concentration is 5 weight % is added into interior pot until interior pot inner wall maximum scale water level
Place, interior pot be put into energization closing lid laser heating in corresponding stew boil 8 hours (every 2 hours amount of makeup water 1 time, liquid level is kept
Position in on-test), it is a cycle that 80 DEG C, which keep the temperature 16 hours, visual inspection coating surface variation after each cycle test
There is the periodicity of the bad phenomenons such as blistering, salient point, the results are shown in Table 2 in situation, record coating.
5, non-adhesion behavior
The non-adhesion behavior of the cookware prepared in above-described embodiment and comparative example is detected according to the method for GB/T2421-1998,
Specific test process is as follows: gently wiping inner surface of pot body with the soft cloth for speckling with vegetable oil, uses clear water after being cleaned with warm water plus detergent
It cleans and wipes dry, then sample is heated, measured with land surface pyrometer, inner surface of pot body temperature is at 150 DEG C, by a Fresh Egg
It is put into pot after broken shell, vegetable edible oil or other fat oils is not added, solidified substantially to albumen, with the not damaged taking-up of nonmetallic shovel
Then egg wipes inner surface of pot body with soft cloth, and is carried out continuously three times.If inner surface of pot body can wiped clean, for
Qualification shows non-stick preferable；If inner surface of pot body is unable to wiped clean, unqualified, shows non-stick poor or do not have
It is non-stick.It the results are shown in Table 2.
Table 1
| Surface hardness (pencil hardness) | Binding force (MPa) | Abrasion resistance (secondary) | |
| Embodiment 1 | 6H | 38 | 9000 |
| Embodiment 2 | 6H | 40 | 9500 |
| Embodiment 3 | 6H | 39 | 9300 |
| Comparative example 1 | HB | 2 | 4000 |
| Comparative example 2 | HB | 10 | 3000 |
Table 2
| It is acidproof | It is alkaline-resisting | Salt tolerant | Non-adhesion behavior | |
| Embodiment 1 | Phenomena such as no albefaction, blistering | Phenomena such as no albefaction, blistering | 25 periods | It is qualified |
| Embodiment 2 | Phenomena such as no albefaction, blistering | Phenomena such as no albefaction, blistering | 26 periods | It is qualified |
| Embodiment 3 | Phenomena such as no albefaction, blistering | Phenomena such as no albefaction, blistering | 25 periods | It is qualified |
| Comparative example 1 | Phenomena such as no albefaction, blistering | Phenomena such as no albefaction, blistering | 8 periods | It is qualified |
| Comparative example 2 | There is phenomena such as albefaction, blistering | There is phenomena such as albefaction, blistering | 4 periods | It is qualified |
It can be seen from the data of upper table 1 and 2 heating utensil of the present invention surface hardness with higher, do not glue
Coating binding force is higher, corrosion resistance and good, scraping and wiping resistance performance are good.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (10)
1. a kind of heating utensil, which is characterized in that the heating utensil includes:
The substrate (1) being heated；
The tie coat (2) being formed on substrate (1) inner surface；And
The non-sticking lining (3) being formed on the tie coat (2) upper surface；
Wherein, the tie coat (2) can be improved the bond strength of the non-sticking lining (3) Yu the substrate (1), it is described not
Adhesive coating layer (3) is the coating containing PFA, metallic aluminium and aluminium oxide.
2. heating utensil according to claim 1, which is characterized in that the tie coat (2) be aluminum oxide layer,
One of NiCr alloy-layer and NiCoCrAlY alloy-layer are a variety of.
3. heating utensil according to claim 1 or 2, which is characterized in that the tie coat (2) with a thickness of 10-50 μ
M, roughness are 3-5 μm.
4. heating utensil according to claim 1, which is characterized in that the non-sticking lining (3) is by containing PFA powder and gold
The mixture for belonging to aluminium powder is formed by thermal spraying.
5. heating utensil according to claim 1 or 4, which is characterized in that the non-sticking lining (3) with a thickness of 20-200
μm, roughness is 0.5-1 μm.
6. heating utensil according to claim 1,2 or 4, which is characterized in that the heating utensil is inner container of electric cooker, pressure
Power pot liner, frying pan, baking tray or cooking machine.
7. a kind of prepare the method that utensil is heated described in any one of claim 1-6, method includes the following steps:
(1) tie coat (2) are formed on the inner surface of substrate (1) by hot spray process；
(2) pass through hot spray process on the upper surface of tie coat (2) using the mixture containing PFA powder and metallic aluminium powder
It is formed non-sticking lining (3).
8. according to the method described in claim 7, wherein, in the mixture containing PFA powder and metallic aluminium powder,
The content of PFA powder is 50-80 weight %, and the content of the metallic aluminium powder is 20-50 weight %.
9. method according to claim 7 or 8, wherein in step (2), the hot spray process is plasma spraying.
10. according to the method described in claim 9, wherein, the operating condition of the plasma spraying includes: initial preheating temperature
It is 120-200 DEG C, spray distance 50-150mm, spray angle is 60-90 °, and powder powder sending quantity is 3.5-10g/min, spraying
Power is 20-50kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352492.0A CN109924886A (en) | 2017-12-15 | 2017-12-15 | A kind of heating utensil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711352492.0A CN109924886A (en) | 2017-12-15 | 2017-12-15 | A kind of heating utensil and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109924886A true CN109924886A (en) | 2019-06-25 |
Family
ID=66980405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711352492.0A Pending CN109924886A (en) | 2017-12-15 | 2017-12-15 | A kind of heating utensil and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109924886A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145627A (en) * | 1994-02-04 | 1997-03-19 | 纳幕尔杜邦公司 | Primer compsn. and use of the same compsn. for coating metal surfaces with a fluororesin |
| CN1164553A (en) * | 1996-01-29 | 1997-11-12 | Seb公司 | Non-stick coating for aluminium cooking vessels |
| CN1249670A (en) * | 1997-03-07 | 2000-04-05 | 大金工业株式会社 | Composite materials for cookware |
| US20080073357A1 (en) * | 2004-07-14 | 2008-03-27 | Raymond Chin | Cooking UItensils with Metallic Non-Stick Coating and Methods for Making the Same |
| CN103396709A (en) * | 2005-04-19 | 2013-11-20 | 杜邦三井氟化物有限公司 | Fluororesin coating film |
| CN104757863A (en) * | 2015-03-17 | 2015-07-08 | 浙江三禾厨具有限公司 | Plasma non-stick pan and fabrication method thereof |
| CN104887060A (en) * | 2015-06-25 | 2015-09-09 | 武汉苏泊尔炊具有限公司 | Non-sticking cooker and manufacturing method thereof |
| CN105780001A (en) * | 2014-12-19 | 2016-07-20 | 佛山市顺德区美的电热电器制造有限公司 | Manufacturing method for pot and pot |
| CN107019408A (en) * | 2016-01-29 | 2017-08-08 | 佛山市顺德区美的电热电器制造有限公司 | A kind of cooker and preparation method thereof |
| CN208658926U (en) * | 2017-12-15 | 2019-03-29 | 佛山市顺德区美的电热电器制造有限公司 | A kind of heating utensil |
-
2017
- 2017-12-15 CN CN201711352492.0A patent/CN109924886A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1145627A (en) * | 1994-02-04 | 1997-03-19 | 纳幕尔杜邦公司 | Primer compsn. and use of the same compsn. for coating metal surfaces with a fluororesin |
| CN1164553A (en) * | 1996-01-29 | 1997-11-12 | Seb公司 | Non-stick coating for aluminium cooking vessels |
| CN1249670A (en) * | 1997-03-07 | 2000-04-05 | 大金工业株式会社 | Composite materials for cookware |
| US20080073357A1 (en) * | 2004-07-14 | 2008-03-27 | Raymond Chin | Cooking UItensils with Metallic Non-Stick Coating and Methods for Making the Same |
| CN103396709A (en) * | 2005-04-19 | 2013-11-20 | 杜邦三井氟化物有限公司 | Fluororesin coating film |
| CN105780001A (en) * | 2014-12-19 | 2016-07-20 | 佛山市顺德区美的电热电器制造有限公司 | Manufacturing method for pot and pot |
| CN104757863A (en) * | 2015-03-17 | 2015-07-08 | 浙江三禾厨具有限公司 | Plasma non-stick pan and fabrication method thereof |
| CN104887060A (en) * | 2015-06-25 | 2015-09-09 | 武汉苏泊尔炊具有限公司 | Non-sticking cooker and manufacturing method thereof |
| CN107019408A (en) * | 2016-01-29 | 2017-08-08 | 佛山市顺德区美的电热电器制造有限公司 | A kind of cooker and preparation method thereof |
| CN208658926U (en) * | 2017-12-15 | 2019-03-29 | 佛山市顺德区美的电热电器制造有限公司 | A kind of heating utensil |
Non-Patent Citations (1)
| Title |
|---|
| 韦福水等编著: "热喷涂技术", 31 December 1986, 北京：机械工业出版社, pages: 35 - 38 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9073788B2 (en) | Ceramic paints and protective coatings | |
| US9169402B2 (en) | Titanium-containing ceramic paint and protective coating | |
| CN108977747A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| CN109943799A (en) | A kind of heating utensil and preparation method thereof | |
| BRPI1014477B1 (en) | kitchen utensil and method for producing a kitchen utensil | |
| CN108977748A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| KR102085595B1 (en) | Manufacturing method for kitchen appliances with thermosetting composite coating layer and kitchen appliances prepared using the same | |
| CN109930103A (en) | A kind of heating utensil and preparation method thereof | |
| CN113286857A (en) | Non-stick coating | |
| CN109957750A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| CN109706419A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| CN110129713A (en) | A kind of heating utensil and preparation method thereof | |
| CN208658926U (en) | A kind of heating utensil | |
| CN103958076A (en) | Cooking article comprising a fluorocarbon-resin non-stick coating having improved properties of adhesion to the substrate, and method for the production thereof | |
| CN207561731U (en) | Cookware and equipment of cooking | |
| CN108728784A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking | |
| JP2008154659A (en) | Cooker | |
| CN108720620B (en) | Non-stick coating, preparation method thereof, cooker and cooking equipment | |
| CN109924886A (en) | A kind of heating utensil and preparation method thereof | |
| CN208769539U (en) | A kind of heating utensil | |
| CN207370589U (en) | Iron pan and cooking apparatus | |
| CN207294874U (en) | Cookware and the equipment of cooking for including it | |
| CN110123146A (en) | A kind of heating utensil and preparation method thereof | |
| CN207159333U (en) | Pan and equipment of cooking | |
| CN109136817A (en) | Non-sticking lining and preparation method thereof and cookware and equipment of cooking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |