CN105671430A - Rust-resistant environment-friendly stainless steel coffee pot material and preparation method thereof - Google Patents

Rust-resistant environment-friendly stainless steel coffee pot material and preparation method thereof Download PDF

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Publication number
CN105671430A
CN105671430A CN201610233656.7A CN201610233656A CN105671430A CN 105671430 A CN105671430 A CN 105671430A CN 201610233656 A CN201610233656 A CN 201610233656A CN 105671430 A CN105671430 A CN 105671430A
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coffee pot
temperature
rust
rustless steel
resistant
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焦德宏
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Wanbaoli Stainless Steel Products (dongguan) Co Ltd
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Wanbaoli Stainless Steel Products (dongguan) Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/12—Vessels or pots for table use
    • A47G19/14—Coffee or tea pots
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/081—Iron or steel solutions containing H2SO4
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
    • C23G1/19—Iron or steel

Abstract

The invention relates to the technical field of coffee pot materials, in particular to a rust-resistant environment-friendly stainless steel coffee pot material and a preparation method thereof. Chemical components of the material include, by weight, 0.01-0.05% of C, 0.47-0.51% of N, 0.1-0.5% of Si, 0.1-0.5% of Mn, 27-29% of Cr, 1-3% of Ni, 5.1-5.5% of Mo, 1.8-2.2% of Nb, 0.1-0.5% of Ti, 0.1-0.5% of Co, 0.01-0.05% of Ca, 0.001-0.005% of Ge and the balance iron and impurities. The rust-resistant environment-friendly stainless steel coffee pot material has high rust resistance, and is environmentally friendly, high in strength, toughness, hardness, abrasion resistance and heat resistance and excellent in comprehensive performance.

Description

A kind of resistant to rust environmental protection rustless steel coffee pot material and preparation method thereof
Technical field
The present invention relates to coffee pot material technical field, be specifically related to a kind of resistant to rust environmental protection rustless steel coffee pot material and preparation method thereof.
Background technology
Coffee pot is the utensil of a kind of brewing coffee, raising along with people's living standard, the use scope of coffee pot is more and more wider, the kind of coffee pot also gets more and more, there are rustless steel coffee pot, plastics coffee pot, glass coffee pot etc., rustless steel coffee pot, owing to having higher toughness, intensity, wearability, thermostability and corrosion resistance, is the main sale kind on market.
Owing to the use environment of coffee pot is more special, rustless steel coffee pot needs the stainless steel material manufacture with relatively enhanced tarnish resistance energy, and stainless steel material of the prior art can't fully meet requirement that is currently used and that manufacture, there is stainless property difference, the shortcoming such as not environmentally, it is therefore desirable to develop the stainless steel material of a kind of resistant to rust and environmental protection.
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, it is an object of the invention to provide a kind of resistant to rust environmental protection rustless steel coffee pot material, this rustless steel coffee pot material has higher stainless property, environmental protection, and also there is higher intensity, toughness, hardness, wearability and thermostability, excellent combination property.
Another object of the present invention is to the preparation method that a kind of resistant to rust environmental protection rustless steel coffee pot material is provided, the material fit of this preparation method and the present invention uses, the optimum performance of material can be played, technique is simple, convenient operation and control, steady quality, production efficiency is high, produce environmental protection, can large-scale industrial production.
The purpose of the present invention is achieved through the following technical solutions: a kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.01-0.05%, N:0.47-0.51%, Si:0.1-0.5%, Mn:0.1-0.5%, Cr:27-29%, Ni:1-3%, Mo:5.1-5.5%, Nb:1.8-2.2%, Ti:0.1-0.5%, Co:0.1-0.5%, Ca:0.01-0.05%, Ge:0.001-0.005%, surplus are ferrum and impurity.
Preferably, its chemical composition includes the element of following percentage by weight: C:0.02-0.04%, N:0.48-0.50%, Si:0.2-0.4%, Mn:0.2-0.4%, Cr:27.5-28.5%, Ni:1.5-2.5%, Mo:5.2-5.4%, Nb:1.9-2.1%, Ti:0.2-0.4%, Co:0.2-0.4%, Ca:0.02-0.04%, Ge:0.002-0.004%, surplus are ferrum and impurity.
Being more highly preferred to, its chemical composition includes the element of following percentage by weight: C:0.03%, N:0.49%, Si:0.3%, Mn:0.3%, Cr:28%, Ni:2%, Mo:5.3%, Nb:2.0%, Ti:0.3%, Co:0.3%, Ca:0.03%, Ge:0.003%, surplus are ferrum and impurity.
The Design of Chemical Composition reason of the resistant to rust environmental protection rustless steel coffee pot material of the present invention is as follows:
C:0.01-0.05%
C(carbon) be powerful austenite generate element, therefore the ratio making the martensitic phase in metal structure increases, and C can play solid solution strengthening effect, fuses in lattice structure with the form of interstitial solid solution, it is introduced therein to strain, to strengthen the effect of interstitial solid solution thus creating; Additionally, C has forms Cottrel atmosphere so that dislocation in metal structure obtains the effect of set, thus improving the intensity of material, therefore, in order to be effectively improved the intensity of material, the percentage by weight of C should control more than 0.01%. But, C Cr, Nb, Ti easily and in steel etc. combines and forms carbide, such as, when having Cr carbide at grain boundary, owing to Cr diffusion velocity in austenite is relatively slow, Cr depletion layer can be produced near crystal boundary, the toughness and the corrosion resistance that make material reduce, therefore, causing the toughness of material and corrosion resistance to decline in order to avoid C is too high, the percentage by weight of C should control below 0.05%. In the present invention, the percentage by weight of C is 0.01-0.05%, both can meet the requirement of strength of material, can ensure that again the toughness of material and corrosion resistance, it is preferred that the percentage by weight of C is 0.02-0.04%, is more highly preferred to, and the percentage by weight of C is 0.03%.
N:0.47-0.51%
N(nitrogen) it is form one of the strongest austenitic effective element, the same with C, N is also the element strengthening interstitial solid solution, and is also the element forming Cottrel atmosphere; In addition, N can also be combined to form cluster compound with Cr or Mo in steel, thus producing to improve the effect of intensity, effectively makes austenite phase stable to pass through addition N, and effectively making the intensity of material improve by forming Mo-N cluster compound, the percentage by weight of N should control more than 0.47%. But, N solid solution degree in austenite phase is restricted, when adding larger amount of N, pore can be produced when cast steel, although there is the element (such as Cr or Mn) of high-affinity with N improve the limit of its solid solution by adding, this phenomenon can be suppressed to a certain extent, but when adding too much such element, need when steel is melted environmental condition (such as temperature etc.) is controlled, cost is made to increase, therefore, in order to avoid the difficulty that the too high increase of N melts and casts, the percentage by weight of N should control below 0.51%. In the present invention, the percentage by weight of N is 0.47-0.51%, both can meet the requirement of strength of material, can ensure that again drawing abillity, it is preferred that the percentage by weight of N is 0.48-0.50%, is more highly preferred to, and the percentage by weight of N is 0.49%.
Si:0.1-0.5%
Si(silicon) for ferrite former, play deoxidizer and improve the effect of material corrosion resistance, also it is to increase the element of the intensity of steel simultaneously, solid solution can be there is in Si, thus producing make stacking fault energy reduce and make the improved effect of mechanical property, therefore, in order to be effectively improved intensity and the corrosion resistance of material, and playing good deoxidation, the percentage by weight of Si should control more than 0.1%.But it is unfavorable to hot-workability and the toughness of material to add substantial amounts of Si, and room temperature compacted under is also unfavorable, causing the hot-workability of material and toughness to decline in order to avoid Si is too high, the percentage by weight of Si should control below 0.5%. In the present invention, the percentage by weight of Si is 0.1-0.5%, both can meet intensity and the corrosion resistance requirement of material, can ensure that again the hot-workability of material and toughness, preferably, the percentage by weight of Si is 0.2-0.4%, is more highly preferred to, and the percentage by weight of Si is 0.3%.
Mn:0.1-0.5%
Mn(manganese) it is austenite former, cost is low, Ni can be substituted and form austenite, when by melted for steel and refine, Mn is used as deoxidizer, and steel has very big invigoration effect, can improve the intensity of steel, hardness and wearability, in order to ensure intensity and the hardness of material, the percentage by weight of Mn should control more than 0.1%. But, the non-oxidizability under high temperature can be produced disadvantageous effect by Mn, makes the toughness of material and corrosion resistance reduce, and causes the toughness of material and corrosion resistance to decline in order to avoid Mn is too high, and the percentage by weight of Mn should control below 0.5%. In the present invention, the percentage by weight of Mn is 0.1-0.5%, both can meet intensity and the hardness requirement of material, can ensure that again the toughness of material and corrosion resistance, preferably, the percentage by weight of Mn is 0.2-0.4%, is more highly preferred to, and the percentage by weight of Mn is 0.3%.
Cr:27-29%
Cr(chromium) it is strongly form and stablize ferritic element, reduce austenitic area, along with Cr content increases in steel, austenitic stainless steel may occur in which ferritic structure; In addition, Cr is the main alloy element improving the strength of materials and corrosion resistance, Cr can improve rustless steel corrosion resistance in oxidizing acid, improve the local corrosion abilities such as its anticorrosion stress-resistant in chloride solution, spot corrosion and crevice corrosion, and the too low martensite transformation temperature (Ms) that also results in of Cr content raises, and affects the performance of steel, therefore, in order to ensure intensity and the corrosion resistance of material, the percentage by weight of Cr should control more than 27%. But Cr can reduce plasticity and the toughness of material while improving the intensity of steel, if its too high levels, not only increase cost, affecting economy, productivity ratio declines, and weldability is unfavorable, the formability that also can cause some intermetallic phases increases, therefore, causing the plasticity of material and toughness to decline in order to avoid Cr is too high, the percentage by weight of Cr should control below 29%. In the present invention, the percentage by weight of Cr is 27-29%, both can meet intensity and the corrosion resistance requirement of material, can ensure that again the plasticity of material and toughness, it is preferred that the percentage by weight of Cr is 27.5-28.5%, is more highly preferred to, and the percentage by weight of Cr is 28%.
Ni:1-3%
Ni(nickel) it is the best element forming austenite and stable austenite, Ni all has positive effect to improving the decay resistance of material, mechanical property and hot-working character, contributes to the performance of the corrosion-resistant effect of Cr; The interpolation of Ni simultaneously can also improve plasticity and the toughness of ferritic stainless steel, amount can play the effect of solution strengthening time few, also precipitate can be formed with other element when measuring many, play the effect of ageing strengthening, effectively make austenite phase stable to pass through addition Ni, and improving intensity and the corrosion resistance of material, the percentage by weight of Ni should control more than 1%. But adding Ni in a large number can make Ms point be reduced to the situation that cannot obtain martensitic structure with common Quenching Treatment, thus steel also cannot be made to obtain required high intensity, the decay resistance that also can make material reduces, and Ni shortage of resources, expensive, should practice every conceivable frugality use, therefore, the intensity and the corrosion resistance that cause material in order to avoid Ni is too high reduce and save cost, and the percentage by weight of Ni should control below 3%.In the present invention, the percentage by weight of Ni is 1-3%, both can meet intensity and the corrosion resistance requirement of material, can save again production cost, it is preferred that the percentage by weight of Ni is 1.5-2.5%, is more highly preferred to, and the percentage by weight of Ni is 2%.
Mo:5.1-5.5%
Mo(molybdenum) it is strong ferrite former, be conducive to improving the corrosion resistance of material, particularly Mo is conducive to improving the corrosion resistance of welding position punching shear plane, its intensity can also be improved by solution strengthening, in order to improve intensity and the corrosion resistance of material, the percentage by weight of Mo should control more than 5.1%. But Mo is high cost element, after decay resistance reaches capacity simultaneously, too high Mo content can promote the precipitation of intermetallic phase in austenitic stainless steel, affect mechanics and the processing characteristics of alloy, considering the deterioration of machinability and the increase of material cost, the percentage by weight of Mo should control below 5.5%. In the present invention, the percentage by weight of Mo is 5.1-5.5%, both can meet intensity and the corrosion resistance requirement of material, can save again production cost, it is preferred that the percentage by weight of Mo is 5.2-5.4%, is more highly preferred to, and the percentage by weight of Mo is 5.3%.
Nb:1.8-2.2%
Nb(niobium) for ferrite former, it is possible to crystal grain thinning, improve the yield strength of material, add appropriate Nb at material, primarily serve two important function, one, play the effect of stabilizing element, in heat-treatment temperature range, long-time heat preservation; In steel, Nb element is fully combined with C, forms C-Nb compound, it is to avoid the combination of C and Nb element, makes the decay resistance of material be guaranteed further; Its two, improve steel recrystallization temperature, make the grain refinement of steel, improve tensile strength and the yield strength of steel, therefore, in order to improve tensile strength and the yield strength of material, the percentage by weight of Nb should control more than 1.8%. But the manufacturing process that excessive refractory element Nb can cause again material is complicated, causing that in order to avoid Nb is too high the manufacturing process of material is complicated, the percentage by weight of Nb should control below 2.2%. In the present invention, the percentage by weight of Nb is 1.8-2.2%, both can meet tensile strength and the yield strength requirement of material, again can Simplified flowsheet, it is preferred that the percentage by weight of Nb is 1.9-2.1%, is more highly preferred to, and the percentage by weight of Nb is 2.0%.
Ti:0.1-0.5%
Ti(titanium) it is stabilizing element, be mainly combined C, N compound formation preventing Cr with C, N and cause Cr-depleted region, thus reducing the corrosion resistance of material, Ti is mainly combined with N; Ti can also improve the recrystallization temperature of steel, makes the grain refinement of steel, improves tensile strength and the yield strength of steel, and therefore, in order to improve tensile strength and the yield strength of material, the percentage by weight of Ti should control more than 0.1%. But Ti also influences whether the surface quality of steel as field trash, simultaneously because Ti is oxidizable in adition process, bringing certain difficulty to steel-making, in order to avoid Ti causes that the manufacturing process of material is complicated, the percentage by weight of Ti should control below 0.6%. In the present invention, the percentage by weight of Ti is 0.1-0.5%, both can meet tensile strength and the yield strength requirement of material, can ensure that again the quality of material, simplify manufacturing process, it is preferred that the percentage by weight of Ti is 0.2-0.4%, being more highly preferred to, the percentage by weight of Ti is 0.3%.
Co:0.1-0.5%
Co(cobalt) it is that austenite generates element, transformation temperature and the solution strengthening effect of steel can be improved, increase steel belt roof bolt stability, the intensity of steel and high temperature hardness can be made all to significantly improve, in order to improve intensity and the hardness of material, the percentage by weight of Co should control more than 0.1%. But adding excessive Co and can affect toughness and the stainless property of material, cause in order to avoid Co is too high the toughness of material and stainless property to decline, the percentage by weight of Co should control below 0.5%. In the present invention, the percentage by weight of Co is 0.1-0.5%, both can meet intensity and the hardness requirement of material, can ensure that again the toughness of material and stainless property, preferably, the percentage by weight of Co is 0.2-0.4%, is more highly preferred to, and the percentage by weight of Co is 0.3%.
Ca:0.01-0.05%
Ca(gallium) it is the element making stainless steel material pitting corrosion resistance and resistance to crevice corrosion significantly improve, in order to improve the stainless property of stainless steel material, the weight/mass percentage composition of Ca controls more than 0.2%; But when the weight/mass percentage composition of Ca is more than 0.4%, hot-workability and plasticity reduce. Therefore, control the weight/mass percentage composition of Ca, at 0.2-0.4%, namely to improve the stainless property of stainless steel material, can ensure that again its hot-working character and plasticity. Preferably, the weight/mass percentage composition of Ca is 0.25-0.35%, is more highly preferred to, and the weight/mass percentage composition of Ca is 0.3%.
Ge:0.001-0.005%
Ge(germanium) it is the element making stainless steel material pitting corrosion resistance and resistance to crevice corrosion significantly improve, in order to improve the stainless property of stainless steel material, the weight/mass percentage composition of Ge controls more than 0.02%; But when the weight/mass percentage composition of Ge is more than 0.06%, hot-workability and plasticity reduce. Therefore, control the weight/mass percentage composition of Ge, at 0.02-0.06%, namely to improve the stainless property of stainless steel material, can ensure that again its hot-working character and plasticity. Preferably, the weight/mass percentage composition of Ge is 0.03-0.05%, is more highly preferred to, and the weight/mass percentage composition of Ge is 0.04%.
Preferably, by weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
P(phosphorus) and S(sulfur) it is all the oxious component in steel, too high p and s content can cause that the intensity of steel sharply declines, and can cause that steel become fragile, it is necessary to strict control. Therefore, the weight/mass percentage composition of the P that the present invention adopts controls below 0.015%, and the weight/mass percentage composition of S controls below 0.008%.
H(hydrogen) and O(oxygen) toughness of material can be had a strong impact in stainless steel material, it is necessary to strictly control. Therefore, the weight/mass percentage composition of the H that the present invention adopts controls below 0.003%, and the weight/mass percentage composition of O controls below 0.001%.
Preferably, the chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.008-0.012%, Y:0.004-0.008% and Yb:0.001-0.005%.
Rare earth element ce (cerium) joins in stainless steel material, thus it is possible to vary the composition of steel inclusion, form, distribution and character, thus improving the various performances of steel, such as thermostability, toughness, weldability, wearability etc. Tufftride process is had the effect of oozing of urging significantly by rare earth element ce, increases (γ) phase content in compound layer, and makes case hardness and wearability generation respective change;The heat resistance that Ce can improve, improves the corrosion resistance of material surface, and the appropriate Ce that adds can be effectively improved the impact flexibility of infiltration layer. In the present invention, the percentage by weight of Ce is 0.008-0.012%, both can meet the heat resistant requirements of material, can meet again corrosion resistance and the impact flexibility of material, preferably, the percentage by weight of Ce is 0.009-0.011%, is more highly preferred to, and the percentage by weight of Ce is 0.010%.
Rare earth element y (yttrium) can with the combined effect of the Si in stainless steel material, it is ensured that material still has good antioxygenic property at 1150 DEG C; And the existence of the element such as N, C and Rare Earth Y so that it has the creep rupture strength suitable with nickel-base alloy, and the σ phase of fragility is precipitated with retarding action by N, improves material structure stability under the high temperature conditions. The present invention is by controlling the content of N and Rare Earth Y in rustless steel, and reduces the content of O and S in rustless steel, thus ensure that alloy has excellent thermostability and excellent plasticity, having and comparing OCr25Ni2The better applied at elevated temperature performance of O, substantially reduces the content of Ni simultaneously, has effectively saved resource, reduced manufacturing cost. In the present invention, the percentage by weight of Y is 0.004-0.008%, both can meet thermostability and the plasticity requirements of material, can reduce again manufacturing cost, it is preferred that the percentage by weight of Y is 0.005-0.007%, is more highly preferred to, and the percentage by weight of Y is 0.006%.
In ferritic stainless steel, rare earth element Rare Earth Y b(ytterbium) by adsorbing carbon atom in a large number, the total amount making ferritic stainless steel carbide precipitate reduces, simultaneously by rotten field trash, the fracture apperance making crackle source region there occurs change, thus improving the impact flexibility of steel, therefore, in order to improve the impact flexibility of material, the percentage by weight of Yb should control more than 0.001%. But too much addition Rare Earth Y b, can react with the matrix of steel, form ferrum cerium brittlement phase, steel inclusion total amount can be caused to increase simultaneously, affect the cleanliness factor of steel, cause that toughness declines, therefore, cause the impact toughness decreased of material in order to avoid Yb is too high, the percentage by weight of Yb should control below 0.005%. In the present invention, the percentage by weight of Yb is 0.001-0.005%, it is possible to the impact flexibility performance making material is best, it is preferred that the percentage by weight of Yb is 0.002-0.004%, is more highly preferred to, and the percentage by weight of Yb is 0.003%.
The present invention is by adding three kinds of rare earth elements of Ce, Y and Yb, it is possible to increase the mechanical strength of material and hardness, and increases wearability.
Preferably, the chemical composition of described material meets below equation:
0.50%≤C+N≤0.55% ... (1)
0.4%≤Si+Mn≤0.8% ... (2)
23.4≤Cr+Ni-Mo≤26.0% ... (3)
5%≤Nb/Ti≤20% ... (4)
0.2%≤Co+Ca+Ge≤0.5% ... (5)
Wherein, C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Co, Ca and Ge represent the percentage by weight of each element respectively.
(1) (C+N) of formula affects the intensity of material, bending machining performance and welding position toughness and then affects the factor of welding position pressworkability, is limited in the present invention within the scope of 0.50%-0.55%. Being experimentally confirmed, when (C+N) is less than 0.50%, the intensity of martensitic structure is too low, namely becomes the line and staff control of ferrite+martensite, and tensile strength can not reach more than 850MPa.When (C+N) is more than 0.55%, owing to C, N make martensite significantly harden, when C, N content height, the difference of hardness of soft ferrite and hard martensite is very big, savings distortion in its border during bending machining, easily crack, so that the toughness of the bending machining performance of material and welding position significantly reduces; In addition, when (C+N) is more than 0.55%, the pressworkability of welding position significantly reduces, the reason that welding position pressworkability reduces is in the line and staff control of the ferrite generated after welding and martensite composition, due to solid solution substantial amounts of C, N in the martensite of the austenite phase transformation big from C, N solid solution ability, the intensity of martensite increases, and with soft ferritic intensity difference excessive causes. Therefore, from the intensity improving material, (C+N) should control more than 0.50%, and from improving drawing abillity, (C+N) should control below 0.55%.
(2) (Si+Mn) of formula is the factor of intensity and the toughness affecting material, is limited in the present invention within the scope of 0.4-0.8%. Being experimentally confirmed, when (Si+Mn) is less than 0.4%, the strength of materials obtained is poor, and deoxidation effect is bad; When (Si+Mn) is more than 0.8%, the materials hot working and the toughness that obtain are poor, therefore, from the intensity improving material and deoxidation, (Si+Mn) should controlling more than 0.4%, from the hot-workability improving material and toughness, (Si+Mn) should control below 0.8%.
(3) (Cr+Ni-Mo) of formula is the factor of intensity and the corrosion resistance affecting material, is limited in the present invention in the scope of 23.4-26.0%. Cr, Ni and Mo have the effect of corrosion resistance, but the effect of the composite use of Cr and Ni is more significantly, is experimentally confirmed, and when (Cr+Ni-Mo) is less than 23.4%, the material corrosion resistance obtained is poor, and intensity is little; When (Cr+Ni-Mo) is more than 26.0%, cause that the plasticity of material and toughness decline. Therefore, from the intensity improving material and corrosion resistance, (Cr+Ni-Mo) should control more than 23.4%, and from the plasticity improving material and toughness, (Cr+Ni-Mo) should control below 26.0%.
(4) (Nb/Ti) of formula is the factor of the strength and stability affecting material, is limited in the present invention within the scope of 5%-20%. Being experimentally confirmed, when (Nb/Ti) is less than 5%, the strength of materials obtained is little, and less stable, and when (Nb/Ti) is more than 20%, the manufacturing process of material is complicated, uneconomical. Therefore, from the strength and stability improving material, (Nb/Ti) should control more than 5%, and the manufacturing process of formed material of conforming to the principle of simplicity is set out, and (Nb/Ti) should control below 20%.
(5) (Co+Ca+Ge) of formula is the factor of intensity and the resistant tarnishing affecting material, is limited in the present invention within the scope of 0.2%-0.5%. Being experimentally confirmed, when (Co+Ca+Ge) is less than 0.2%, the strength of materials obtained is little, and resistant tarnishing is poor, and when (Co+Ca+Ge) is more than 0.5%, the manufacturing process of material is complicated, uneconomical. Therefore, from the intensity improving material and resistant tarnishing, (Co+Ca+Ge) should control more than 0.2%, and the manufacturing process of formed material of conforming to the principle of simplicity is set out, and (Co+Ca+Ge) should control below 0.5%.
Another object of the present invention is achieved through the following technical solutions: the preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 0.5-2.5Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.1-0.5Pa vacuum, carry out vacuum consumable remelting with the molten speed of 1.5-3.5Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1080-1120 DEG C of temperature, and the process time is 32-40h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, opens forging temperature and is 980-1020 DEG C, and final forging temperature is 820-860 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1000-1040 DEG C of temperature, and the process time is 2-3h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
Vacuum induction furnace smelting has the advantage that the alloy of smelting is pure, and performance level is high; The steel and the alloy gas content that melt out are low; Metal is not oxidizable; Material purity is high; Can accurately adjust and control chemical composition; The intensity of steel can be improved, and reduce the production cost of high-strength stainless steel finished product.
Homogenization Treatments, as the means of the metallurgical quality and extrusion performance that improve ingot blank, has had become as the most important method of the metallurgical quality improving ingot blank at present. Homogenization Treatments is to utilize to carry out long-time heating at high temperature, makes the chemical composition of inside fully spread, is therefore also called diffusion annealing. That anneal in order that eliminate tissue defects, improve tissue and make homogenization of composition and crystal grain thinning, improve the mechanical property of steel, reduce residual stress, hardness, raising plasticity and toughness can be improved simultaneously, improve machinability.
Solution treatment refers to that alloy is heated to high temperature monophase field constant temperature to be kept, and quickly cooling after making surplus fully be dissolved in solid solution mutually, to obtain the Technology for Heating Processing of supersaturated solid solution. The effect of solution treatment mainly improves steel and the intensity of alloy, plasticity and toughness; Various phases in alloy are made fully to dissolve, Intensive intervention body, and improve toughness and etch resistant properties, eliminate stress and softening, in order to continue processing or molding.
Heat treatment refers to that alloy workpiece is through solution treatment, cold plastic deformation or casting, after forging, its performance, shape, the Technology for Heating Processing of size time to time change is kept in higher temperature placement or room temperature, the purpose of Ageing Treatment, eliminate the internal stress of workpiece, stabilizing tissue and size, improve mechanical performance etc.
Preferably, in described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 450-550 DEG C, vaccum sensitive stove is evacuated to 0.5-2.5Pa, melt with the burn-off rate of 6-8Kg/min;
Being initially charged C can provide sufficient C to measure for C-O reaction, thus being conducive to the gas purging such as N, O; Owing to Cr is easy to be combined with N, the removal being unfavorable in melt N, therefore metal Cr must all reserve, and adds after N is qualified; Owing to metal Mn is readily volatilized, therefore metal Cr must all reserve, and coming out of the stove, first few minutes adds.
After A2, material to be added all melt, carry out refine with the temperature of 1480-1520 DEG C, keep 50-70min;
Liquid level fusion keeps calmness when no longer having bubble to overflow, and after namely entirely molten, carries out refine. The temperature of refine is more high, and refining time is more long, and degasifying effect is more good, and in melt, gas content is more low. But temperature is too high or overlong time, aggravating crucible oxygen supply reaction, make oxygen content in steel increase on the contrary, the temperature of this time refine controls at 1480-1540 DEG C, and the retention time controls at 50-70min.
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 6-8Kg/min;
Owing to Cr is easy to be combined with N, the removal being unfavorable in melt N, therefore metal Cr must all reserve, and adds after N is qualified; Owing to this stage Cr addition is more, it is possible to bring more N into, therefore this stage needs Cr is melted at a slow speed, so that N gets rid of as much as possible.
A4, after Cr melts, again carry out refine with the temperature of 1480-1520 DEG C, refining time controls as 10-20min;
Liquid level fusion keeps calmness when no longer having bubble to overflow, and after namely entirely molten, carries out refine. The temperature of refine is more high, and refining time is more long, and degasifying effect is more good, and in melt, gas content is more low. But temperature is too high or overlong time, aggravating crucible oxygen supply reaction, make oxygen content in steel increase on the contrary, the temperature of this time refine controls at 1480-1540 DEG C, and the retention time controls at 10-20min.
A5, according to above-mentioned chemical composition proportioning add Mn, under 1500-2000r/min rotating speed stir 1-3min, until Mn melt after, be cast into consutrode.
Mn volatilizees very big in vacuum induction is smelted, and therefore metal Mn must all reserve, and coming out of the stove, first few minutes adds.
Preferably, in described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1000-1040 DEG C of temperature 40-80min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 40-80min at-100～-140 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 600-640 DEG C of temperature 4-8h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 900-940 DEG C of temperature, be incubated 5-15min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 360-400 DEG C of temperature, be incubated 1-3h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 8-12min in the degreasing fluid that temperature is 60-70 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 30-40g, sodium carbonate 20-30g, sodium phosphate 15-25g, iso-octyl sodium sulfate 2-4g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 3-5min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 60-100mL, hydrochloric acid 60-100mL, ethanol 60-100mL, sodium silicate 2-4g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 10-20s in the sulfuric acid solution that mass concentration is 6-10%, and activation temperature is 60-70 DEG C; At room temperature clean 2-4min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 30-40mL, sodium lauryl sulphate 35-45mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 100-120 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
The beneficial effects of the present invention is: the resistant to rust environmental protection rustless steel coffee pot material of the present invention adds Co, Ca and Ge element, can significantly improve intensity and the stainless property of material; Also reduce the production cost of material, and non-renewable Ni resource can be saved, belong to ep-type material.
The resistant to rust environmental protection rustless steel coffee pot material of the present invention, compares with traditional similar material, the tensile strength >=920Mpa of the rustless steel coffee pot material of the present invention, yield strength >=780Mpa; Impact flexibility >=230J, fracture toughness >=110J, elongation at break >=38%, hardness >=48HRC, also there is excellent decay resistance: the corrosion rate >=0.0080mm/ of material under 3.5%NaCl solution environmental, at 5%H2S04Corrosion rate >=the 0.0258mm/ of material, good combination property under solution environmental, it is simple to processing, environmental protection.
The resistant to rust environmental protection rustless steel coffee pot material of the present invention, its chemical composition includes C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Co, Ca and Ge, surplus is ferrum and impurity, by strictly controlling the content of every kind of element, material is made to have higher stainless property, environmental protection, and also there is higher intensity, toughness, hardness, wearability and thermostability, excellent combination property.
The preparation method of the present invention adopts the steps such as vacuum induction smelting, Homogenization Treatments, solution treatment and heat treatment, all can improve the intensity of steel, and reduces the production cost of high-strength stainless steel finished product, and has good plasticity, meets the needs of deformation processing.
The preparation method of the present invention uses with the material fit of the present invention, it is possible to play the optimum performance of material, and technique is simple, convenient operation and control, steady quality, and production efficiency is high, produces environmental protection, can large-scale industrial production.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated, and the content that embodiment is mentioned not is limitation of the invention.
Embodiment 1
A kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.01%, N:0.51%, Si:0.1%, Mn:0.5%, Cr:27%, Ni:3%, Mo:5.5%, Nb:1.8%, Ti:0.1%, Co:0.1%, Ca:0.05%, Ge:0.005%, surplus are ferrum and impurity; By weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
The chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.008%, Y:0.004% and Yb:0.001%.
The preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 0.5Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.1Pa vacuum, carry out vacuum consumable remelting with the molten speed of 1.5Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1080 DEG C of temperature, and the process time is 40h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, and opening forging temperature is 980 DEG C, and final forging temperature is 820 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1000 DEG C of temperature, and the process time is 3h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
In described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 450 DEG C, vaccum sensitive stove is evacuated to 0.5Pa, melt with the burn-off rate of 6Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1480 DEG C, keep 70min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 6Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1480 DEG C, refining time controls as 20min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 1500r/min rotating speed stir 3min, until Mn melt after, be cast into consutrode.
In described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1000 DEG C of temperature 80min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 80min at-100 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 600 DEG C of temperature 8h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 900 DEG C of temperature, be incubated 15min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 360 DEG C of temperature, be incubated 3h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 12min in the degreasing fluid that temperature is 70 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 30g, sodium carbonate 20g, sodium phosphate 15g, iso-octyl sodium sulfate 2g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 3min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 60mL, hydrochloric acid 60mL, ethanol 60mL, sodium silicate 2g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 20s in the sulfuric acid solution that mass concentration is 6%, and activation temperature is 60 DEG C; At room temperature clean 2min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 30mL, sodium lauryl sulphate 35mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 100 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
Embodiment 2
A kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.02%, N:0.50%, Si:0.2%, Mn:0.4%, Cr:27.5%, Ni:2.5%, Mo:5.4%, Nb:1.9%, Ti:0.2%, Co:0.2%, Ca:0.04%, Ge:0.004%, surplus are ferrum and impurity;By weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
The chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.009%, Y:0.005% and Yb:0.002%.
The preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 1.0Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.2Pa vacuum, carry out vacuum consumable remelting with the molten speed of 2.0Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1090 DEG C of temperature, and the process time is 38h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, and opening forging temperature is 990 DEG C, and final forging temperature is 830 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1010 DEG C of temperature, and the process time is 2.8h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
In described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 480 DEG C, vaccum sensitive stove is evacuated to 1.0Pa, melt with the burn-off rate of 6.5Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1490 DEG C, keep 65min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 6.5Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1490 DEG C, refining time controls as 18min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 1600r/min rotating speed stir 2.5min, until Mn melt after, be cast into consutrode.
In described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1010 DEG C of temperature 70min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 70min at-110 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 610 DEG C of temperature 7h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 910 DEG C of temperature, be incubated 12min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 370 DEG C of temperature, be incubated 2.5h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 11min in the degreasing fluid that temperature is 62 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 32g, sodium carbonate 22g, sodium phosphate 18g, iso-octyl sodium sulfate 2.5g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 3.5min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 70mL, hydrochloric acid 70mL, ethanol 70mL, sodium silicate 2.5g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 18s in the sulfuric acid solution that mass concentration is 7%, and activation temperature is 62 DEG C; At room temperature clean 2.5min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 32mL, sodium lauryl sulphate 38mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 105 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
Embodiment 3
A kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.03%, N:0.49%, Si:0.3%, Mn:0.3%, Cr:28%, Ni:2%, Mo:5.3%, Nb:2.0%, Ti:0.3%, Co:0.3%, Ca:0.03%, Ge:0.003%, surplus are ferrum and impurity; By weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
The chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.01%, Y:0.006% and Yb:0.003%.
The preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 1.5Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.3Pa vacuum, carry out vacuum consumable remelting with the molten speed of 2.5Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1100 DEG C of temperature, and the process time is 36h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, and opening forging temperature is 1000 DEG C, and final forging temperature is 840 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1020 DEG C of temperature, and the process time is 2.5h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
In described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 500 DEG C, vaccum sensitive stove is evacuated to 1.5Pa, melt with the burn-off rate of 7Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1500 DEG C, keep 60min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 7Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1500 DEG C, refining time controls as 15min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 1800r/min rotating speed stir 2min, until Mn melt after, be cast into consutrode.
In described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1020 DEG C of temperature 60min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 60min at-120 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 620 DEG C of temperature 6h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 920 DEG C of temperature, be incubated 10min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 380 DEG C of temperature, be incubated 2h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 10min in the degreasing fluid that temperature is 65 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 35g, sodium carbonate 25g, sodium phosphate 20g, iso-octyl sodium sulfate 3g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 4min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 80mL, hydrochloric acid 80mL, ethanol 80mL, sodium silicate 3g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 15s in the sulfuric acid solution that mass concentration is 8%, and activation temperature is 65 DEG C; At room temperature clean 3min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 35mL, sodium lauryl sulphate 40mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 110 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
Embodiment 4
A kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.04%, N:0.48%, Si:0.4%, Mn:0.2%, Cr:28.5%, Ni:1.5%, Mo:5.2%, Nb:2.1%, Ti:0.4%, Co:0.4%, Ca:0.02%, Ge:0.002%, surplus are ferrum and impurity; By weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
The chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.011%, Y:0.007% and Yb:0.004%.
The preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 2.0Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.4Pa vacuum, carry out vacuum consumable remelting with the molten speed of 3.0Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1110 DEG C of temperature, and the process time is 34h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, and opening forging temperature is 1010 DEG C, and final forging temperature is 850 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1030 DEG C of temperature, and the process time is 2.2h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
In described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 520 DEG C, vaccum sensitive stove is evacuated to 2.0Pa, melt with the burn-off rate of 7.5Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1510 DEG C, keep 65min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 7.5Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1510 DEG C, refining time controls as 12min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 1900r/min rotating speed stir 1.5min, until Mn melt after, be cast into consutrode.
In described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1030 DEG C of temperature 50min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 50min at-130 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 630 DEG C of temperature 5h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 930 DEG C of temperature, be incubated 8min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 390 DEG C of temperature, be incubated 1.5h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 9min in the degreasing fluid that temperature is 68 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 38g, sodium carbonate 28g, sodium phosphate 22g, iso-octyl sodium sulfate 3.5g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 4.5min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 90mL, hydrochloric acid 90mL, ethanol 90mL, sodium silicate 3.5g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 12s in the sulfuric acid solution that mass concentration is 9%, and activation temperature is 68 DEG C; At room temperature clean 3.5min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 38mL, sodium lauryl sulphate 42mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 115 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
Embodiment 5
A kind of resistant to rust environmental protection rustless steel coffee pot material, its chemical composition includes the element of following percentage by weight: C:0.05%, N:0.47%, Si:0.5%, Mn:0.1%, Cr:29%, Ni:1%, Mo:5.1%, Nb:2.2%, Ti:0.5%, Co:0.5%, Ca:0.01%, Ge:0.001%, surplus are ferrum and impurity;By weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
The chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.012%, Y:0.008% and Yb:0.005%.
The preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material, comprises the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 2.5Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.5Pa vacuum, carry out vacuum consumable remelting with the molten speed of 3.5Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1120 DEG C of temperature, and the process time is 32h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, and opening forging temperature is 1020 DEG C, and final forging temperature is 860 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1040 DEG C of temperature, and the process time is 2h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
In described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 550 DEG C, vaccum sensitive stove is evacuated to 2.5Pa, melt with the burn-off rate of 8Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1520 DEG C, keep 50min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 8Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1520 DEG C, refining time controls as 10min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 2000r/min rotating speed stir 1min, until Mn melt after, be cast into consutrode.
In described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1040 DEG C of temperature 40min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 40min at-140 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 640 DEG C of temperature 4h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 940 DEG C of temperature, be incubated 5min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 400 DEG C of temperature, be incubated 1h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
A kind of resistant to rust environmental protection rustless steel coffee pot, described rustless steel coffee pot prepares through cast molding and surface treatment according to resistant to rust environmental protection rustless steel coffee pot material described above; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 8min in the degreasing fluid that temperature is 70 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 40g, sodium carbonate 30g, sodium phosphate 25g, iso-octyl sodium sulfate 4g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 5min;Every liter of degreasing fluid is made up of following raw material: sulphuric acid 100mL, hydrochloric acid 100mL, ethanol 100mL, sodium silicate 4g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 10s in the sulfuric acid solution that mass concentration is 10%, and activation temperature is 70 DEG C; At room temperature clean 4min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 40mL, sodium lauryl sulphate 45mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 120 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
The mechanical and physical performance of the resistant to rust environmental protection rustless steel coffee pot material that embodiment 1-5 prepares is as shown in table 1.
Table 1
The resistant to rust environmental protection rustless steel coffee pot material of the present invention, compares with traditional similar material, the tensile strength >=920Mpa of the rustless steel coffee pot material of the present invention, yield strength >=780Mpa; Impact flexibility >=230J, fracture toughness >=110J, elongation at break >=38%, hardness >=48HRC, also there is excellent decay resistance: the corrosion rate >=0.0080mm/ of material under 3.5%NaCl solution environmental, at 5%H2S04Corrosion rate >=the 0.0258mm/ of material, good combination property under solution environmental, it is simple to processing, environmental protection.
The resistant to rust environmental protection rustless steel coffee pot material of the present invention, its chemical composition includes C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Co, Ca and Ge, surplus is ferrum and impurity, by strictly controlling the content of every kind of element, material is made to have higher stainless property, environmental protection, and also there is higher intensity, toughness, hardness, wearability and thermostability, excellent combination property.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can also realize by alternate manner, and any apparent replacement is all within protection scope of the present invention without departing from the inventive concept of the premise.

Claims (10)

1. a resistant to rust environmental protection rustless steel coffee pot material, it is characterised in that: its chemical composition includes the element of following percentage by weight: C:0.01-0.05%, N:0.47-0.51%, Si:0.1-0.5%, Mn:0.1-0.5%, Cr:27-29%, Ni:1-3%, Mo:5.1-5.5%, Nb:1.8-2.2%, Ti:0.1-0.5%, Co:0.1-0.5%, Ca:0.01-0.05%, Ge:0.001-0.005%, surplus are ferrum and impurity.
2. a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 1, it is characterised in that: its chemical composition includes the element of following percentage by weight: C:0.02-0.04%, N:0.48-0.50%, Si:0.2-0.4%, Mn:0.2-0.4%, Cr:27.5-28.5%, Ni:1.5-2.5%, Mo:5.2-5.4%, Nb:1.9-2.1%, Ti:0.2-0.4%, Co:0.2-0.4%, Ca:0.02-0.04%, Ge:0.002-0.004%, surplus are ferrum and impurity.
3. a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 1, it is characterised in that: its chemical composition includes the element of following percentage by weight: C:0.03%, N:0.49%, Si:0.3%, Mn:0.3%, Cr:28%, Ni:2%, Mo:5.3%, Nb:2.0%, Ti:0.3%, Co:0.3%, Ca:0.03%, Ge:0.003%, surplus are ferrum and impurity.
4. a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 1, it is characterised in that: by weight percentage, total content≤0.1% of described impurity, wherein, P≤0.015%, S≤0.008%, H≤0.003%, O≤0.001%.
5. a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 1, it is characterised in that: the chemical composition of described material also includes the rare earth element of following percentage by weight: Ce:0.008-0.012%, Y:0.004-0.008% and Yb:0.001-0.005%.
6. a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 1, it is characterised in that: the chemical composition of described material meets below equation:
0.50%≤C+N≤0.55% ... (1)
0.4%≤Si+Mn≤0.8% ... (2)
23.4≤Cr+Ni-Mo≤26.0% ... (3)
5%≤Nb/Ti≤20% ... (4)
0.2%≤Co+Ca+Ge≤0.5% ... (5)
Wherein, C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Co, Ca and Ge represent the percentage by weight of each element respectively.
7. the preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material as described in any one of claim 1-6, it is characterised in that: comprise the steps:
A, vacuum induction are smelted: carry out vacuum induction smelting according to the proportioning of above-mentioned chemical composition under 0.5-2.5Pa vacuum through vaccum sensitive stove, be cast into consutrode;
B, vacuum consumable remelting: by the consutrode after casting under 0.1-0.5Pa vacuum, carry out vacuum consumable remelting with the molten speed of 1.5-3.5Kg/min, obtain molten steel;
C, Homogenization Treatments: the molten steel after remelting carries out Homogenization Treatments at 1080-1120 DEG C of temperature, and the process time is 32-40h;
D forging is become a useful person: the molten steel after Homogenization Treatments is carried out alloy forging, opens forging temperature and is 980-1020 DEG C, and final forging temperature is 820-860 DEG C, obtains forging rod;
E, solution treatment: the forging rod after forging is carried out solution treatment at 1000-1040 DEG C of temperature, and the process time is 2-3h, and then oil cooling is to room temperature, obtains steel;
F, heat treatment: the steel after solution treatment are carried out heat treatment, prepare resistant to rust environmental protection rustless steel coffee pot material.
8. the preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 7, it is characterised in that: in described step A, vacuum induction smelt processing step particularly as follows:
A1, proportioning according to above-mentioned chemical composition, first load crucible by C, is then loaded by all the other elements except Cr, Mn, put in vaccum sensitive stove, crucible is preheated to 450-550 DEG C, vaccum sensitive stove is evacuated to 0.5-2.5Pa, melt with the burn-off rate of 6-8Kg/min;
After A2, material to be added all melt, carry out refine with the temperature of 1480-1520 DEG C, keep 50-70min;
A3, according to above-mentioned chemical composition proportioning add Cr, continue melt with the burn-off rate of 6-8Kg/min;
A4, after Cr melts, again carry out refine with the temperature of 1480-1520 DEG C, refining time controls as 10-20min;
A5, according to above-mentioned chemical composition proportioning add Mn, under 1500-2000r/min rotating speed stir 1-3min, until Mn melt after, be cast into consutrode.
9. the preparation method of a kind of resistant to rust environmental protection rustless steel coffee pot material according to claim 7, it is characterised in that: in described step F, process of thermal treatment step particularly as follows:
F1, the steel after solution treatment being incubated at 1000-1040 DEG C of temperature 40-80min, oil cooling is to room temperature;
F2, by step F1 cool down after steel cold treatment 40-80min at-100～-140 DEG C of temperature;
F3, the steel after step F2 cold treatment being incubated at 600-640 DEG C of temperature 4-8h, air cooling is to room temperature;
F4, step F3 is cooled down after steel at 900-940 DEG C of temperature, be incubated 5-15min, water-cooled or oil cooling to room temperature;
F5, step F4 is cooled down after steel at 360-400 DEG C of temperature, be incubated 1-3h, air cooling to room temperature, prepared resistant to rust environmental protection rustless steel coffee pot material.
10. a resistant to rust environmental protection rustless steel coffee pot, it is characterised in that: described rustless steel coffee pot resistant to rust environmental protection rustless steel coffee pot material according to any one of claim 1-6 prepares through cast molding and surface treatment; The processing step of described surface treatment particularly as follows:
(1) pretreatment: first with sand papering rustless steel coffee pot, then carry out oil removal treatment, then the degreasing fluid of residual is removed in washing; Described oil removal treatment is oil removing 8-12min in the degreasing fluid that temperature is 60-70 DEG C, and every liter of degreasing fluid is made up of following raw material: sodium hydroxide 30-40g, sodium carbonate 20-30g, sodium phosphate 15-25g, iso-octyl sodium sulfate 2-4g, deionized water surplus;
(2) pickling membrane removal: wash after pretreated for step (1) rustless steel coffee pot is at room temperature adopted nitration mixture pickling 3-5min; Every liter of degreasing fluid is made up of following raw material: sulphuric acid 60-100mL, hydrochloric acid 60-100mL, ethanol 60-100mL, sodium silicate 2-4g, deionized water surplus;
(3) surface active: the rustless steel coffee pot after step (2) being processed activates 10-20s in the sulfuric acid solution that mass concentration is 6-10%, and activation temperature is 60-70 DEG C; At room temperature clean 2-4min after activation with ultrasound wave, remove the corrosion product of specimen surface; Solution used by ultrasonic waves for cleaning is made up of following raw material: dilute hydrochloric acid 30-40mL, sodium lauryl sulphate 35-45mg, deionized water surplus;
(4) drying is rinsed: the rustless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at 100-120 DEG C of temperature, cooling, prepared resistant to rust environmental protection rustless steel coffee pot.
CN201610233656.7A 2016-04-15 2016-04-15 Rust-resistant environment-friendly stainless steel coffee pot material and preparation method thereof Pending CN105671430A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101168822A (en) * 2006-10-23 2008-04-30 宝山钢铁股份有限公司 High ductility nickel-free ferrite stainless steel and manufacturing method thereof
CN101985724A (en) * 2010-10-28 2011-03-16 南昌航空大学 Rare earth-containing austenitic stainless steel for surgical implant
CN102512094A (en) * 2011-12-16 2012-06-27 吴江市利达上光制品有限公司 Nutritional turner and preparation method thereof
CN103526131A (en) * 2013-10-31 2014-01-22 万宝力不锈钢制品（东莞）有限公司 High-strength stainless steel coffee pot material and preparation method thereof
CN103556070A (en) * 2013-10-31 2014-02-05 万宝力不锈钢制品（东莞）有限公司 High-wear-resisting stainless steel coffee maker material and preparation method thereof
CN104884657A (en) * 2012-12-26 2015-09-02 新日铁住金不锈钢株式会社 Ferritic stainless steel sheet having excellent anti-bacterial activity, and method for producing same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101168822A (en) * 2006-10-23 2008-04-30 宝山钢铁股份有限公司 High ductility nickel-free ferrite stainless steel and manufacturing method thereof
CN101985724A (en) * 2010-10-28 2011-03-16 南昌航空大学 Rare earth-containing austenitic stainless steel for surgical implant
CN102512094A (en) * 2011-12-16 2012-06-27 吴江市利达上光制品有限公司 Nutritional turner and preparation method thereof
CN104884657A (en) * 2012-12-26 2015-09-02 新日铁住金不锈钢株式会社 Ferritic stainless steel sheet having excellent anti-bacterial activity, and method for producing same
CN103526131A (en) * 2013-10-31 2014-01-22 万宝力不锈钢制品（东莞）有限公司 High-strength stainless steel coffee pot material and preparation method thereof
CN103556070A (en) * 2013-10-31 2014-02-05 万宝力不锈钢制品（东莞）有限公司 High-wear-resisting stainless steel coffee maker material and preparation method thereof

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