CN105755400A - High-plasticity environment-friendly stainless steel coffee pot material and method for preparing same - Google Patents

High-plasticity environment-friendly stainless steel coffee pot material and method for preparing same Download PDF

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Publication number
CN105755400A
CN105755400A CN201610233657.1A CN201610233657A CN105755400A CN 105755400 A CN105755400 A CN 105755400A CN 201610233657 A CN201610233657 A CN 201610233657A CN 105755400 A CN105755400 A CN 105755400A
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stainless steel
coffee pot
temperature
ductility
environment friendly
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • 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
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents

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  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention relates to the technical field of coffee pot materials, in particular to a high-plasticity environment-friendly stainless steel coffee pot material and a method for preparing the same.Chemical components of the high-plasticity environment-friendly stainless steel coffee pot material comprise, by weight, 0.21-0.25% of C, 0.02-0.06% of N, 0.8-1.2% of Si, 1.6-2.0% of Mn, 9-11% of Cr, 5-7% of Ni, 0.6-1.0% of Mo, 0.2-0.6% of Nb, 0.5-0.9% of Ti, 0.1-0.5% of Bi, 0.04-0.08% of Al, 0.001-0.005% of B and the balance iron and impurities.The high-plasticity environment-friendly stainless steel coffee pot material and the method have the advantages that the stainless steel coffee pot material is high in plasticity, strength, toughness, hardness, abrasion resistance, heat resistance and corrosion resistance and excellent in comprehensive performance and is environmentally friendly.

Description

A kind of high-ductility environment friendly stainless 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 high-ductility environment friendly stainless 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 range of coffee pot is more and more wider, the kind of coffee pot also gets more and more, there are stainless steel coffee pot, plastics coffee pot, glass coffee pot etc., stainless steel coffee pot, owing to having higher toughness, intensity, wearability, heat resistance and corrosion resistance, is the main sale kind on market.
Owing to the use environment of coffee pot is more special, stainless steel coffee pot needs the stainless steel material manufacture with relatively high-ductility, and stainless steel material of the prior art can't fully meet requirement that is currently used and that manufacture, have that plasticity is poor, the shortcoming such as not environmentally, it is therefore desirable to develop the stainless steel material of a kind of high-ductility and environmental protection.
Summary of the invention
In order to overcome shortcoming and defect present in prior art, it is an object of the invention to provide a kind of high-ductility environment friendly stainless steel coffee pot material, this stainless steel coffee pot material has higher plasticity, environmental protection, and also there is higher intensity, toughness, hardness, wearability, heat resistance and corrosion resistance, excellent combination property.
Another object of the present invention is to provide the preparation method of a kind of high-ductility environment friendly stainless steel coffee pot material, this preparation method uses with the material fit of the present invention, 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 high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.21-0.25%, N:0.02-0.06%, Si:0.8-1.2%, Mn:1.6-2.0%, Cr:9-11%, Ni:5-7%, Mo:0.6-1.0%, Nb:0.2-0.6%, Ti:0.5-0.9%, Bi:0.1-0.5%, Al:0.04-0.08%, B:0.001-0.005%, surplus are iron and impurity.
Preferably, its chemical composition includes that the element of following percentage by weight: C:0.22-0.24%, N:0.03-0.05%, Si:0.9-1.1%, Mn:1.7-1.9%, Cr:9.5-10.5%, Ni:5.5-6.5%, Mo:0.7-0.9%, Nb:0.3-0.5%, Ti:0.6-0.8%, Bi:0.2-0.4%, Al:0.05-0.07%, B:0.002-0.004%, surplus are iron and impurity.
Being more highly preferred to, its chemical composition includes that the element of following percentage by weight: C:0.23%, N:0.04%, Si:1.0%, Mn:1.8%, Cr:10%, Ni:6%, Mo:0.8%, Nb:0.4%, Ti:0.7%, Bi:0.3%, Al:0.06%, B:0.003%, surplus are iron and impurity.
The Design of Chemical Composition reason of the high-ductility environment friendly stainless steel coffee pot material of the present invention is as follows:
C:0.21-0.25%
C(carbon) it is that austenite strongly generates 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, thus create and be introduced therein to strain, to strengthen the effect of interstitial solid solution；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 0.21%.But, C Cr, Nb, Ti easily and in steel etc. combines and forms carbide, such as, when there are 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 0.25%.In the present invention, the percentage by weight of C is 0.21-0.25%, both can meet the requirement of strength of material, can ensure that again toughness and the corrosion resistance of material, it is preferred that the percentage by weight of C is 0.22-0.24%, is more highly preferred to, and the percentage by weight of C is 0.23%.
N:0.02-0.06%
N(nitrogen) it is one of the strongest effective element forming austenite, as 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 with Cr or Mo in steel to form cluster compound, thus produces the effect improving intensity, in order to effectively make austenite phase stable by 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 0.02%.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 too high increase of N is melted and the difficulty of casting, the percentage by weight of N should control below 0.06%.In the present invention, the percentage by weight of N is 0.02-0.06%, 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 0.03-0.05%, is more highly preferred to, and the percentage by weight of N is 0.04%.
Si:0.8-1.2%
Si(silicon) it is ferrite former, play deoxidier and improve the effect of material corrosion resistance, also it is to increase the element of the intensity of steel simultaneously, Si can occur solid solution, thus produce and 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 preferable deoxidation, the percentage by weight of Si should control more than 0.8%.But it is unfavorable to hot-workability and the toughness of material to add substantial amounts of Si, the most unfavorable to normal temperature compacted under, 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 1.2%.In the present invention, the percentage by weight of Si is 0.8-1.2%, both can meet intensity and the corrosion resistance requirement of material, can ensure that again hot-workability and the toughness of material, preferably, the percentage by weight of Si is 0.9-1.1%, is more highly preferred to, and the percentage by weight of Si is 1.0%.
Mn:1.6-2.0%
Mn(manganese) it is austenite former, low cost, Ni can be substituted and form austenite, when steel being melted and refining, Mn is used as deoxidier, has the biggest invigoration effect to steel, 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 1.6%.But, Mn can produce disadvantageous effect to the non-oxidizability under high temperature, 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 2.0%.In the present invention, the percentage by weight of Mn is 1.6-2.0%, both can meet intensity and the hardness requirement of material, can ensure that again toughness and the corrosion resistance of material, it is preferred that the percentage by weight of Mn is 1.7-1.9%, is more highly preferred to, and the percentage by weight of Mn is 1.8%.
Cr:9-11%
Cr(chromium) it is strongly to 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 to improve the strength of materials and the main alloy element of corrosion resistance, Cr can improve stainless steel corrosion resistance in oxidizing acid, improve the local corrosion abilities such as its anticorrosion stress-resistant, spot corrosion and crevice corrosion in chloride solution, 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 9%.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 unfavorable to weldability, 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 11%.In the present invention, the percentage by weight of Cr is 9-11%, both can meet intensity and the corrosion resistance requirement of material, can ensure that again plasticity and the toughness of material, it is preferred that the percentage by weight of Cr is 9.5-10.5%, is more highly preferred to, and the percentage by weight of Cr is 10%.
Ni:5-7%
Ni(nickel) it is to form austenite and the optimal element of 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, in order to effectively make austenite phase stable by addition Ni, and improving intensity and the corrosion resistance of material, the percentage by weight of Ni should control more than 5%.But adding Ni in a large number can make Ms point be reduced to cannot obtain the situation of martensitic structure with common Quenching Treatment, thus also cannot make the high intensity required for steel acquisition, 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 cost-effective, and the percentage by weight of Ni should control below 7%.In the present invention, the percentage by weight of Ni is 5-7%, 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 5.5-6.5%, is more highly preferred to, and the percentage by weight of Ni is 6%.
Mo:0.6-1.0%
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 0.6%.But Mo is high cost element, simultaneously decay resistance reach saturated after, too high Mo content can promote the precipitation of intermetallic phase in austenitic stainless steel, affect mechanics and the processing characteristics of alloy, in view of deterioration and the increase of material cost of machinability, the percentage by weight of Mo should control below 1.0%.In the present invention, the percentage by weight of Mo is 0.6-1.0%, 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 0.7-0.9%, is more highly preferred to, and the percentage by weight of Mo is 0.8%.
Nb:0.2-0.6%
Nb(niobium) it is ferrite former, the yield strength of material with crystal grain thinning, can be improved, 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 Yu Nb element, makes the decay resistance of material be guaranteed further；Its two, improve steel recrystallization temperature, make the crystal grain of steel refine, 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 0.2%.But the manufacturing process that the refractory element Nb of excess can cause again material is complicated, the manufacturing process causing material in order to avoid Nb is too high is complicated, and the percentage by weight of Nb should control below 0.6%.In the present invention, the percentage by weight of Nb is 0.2-0.6%, both can meet tensile strength and the yield strength requirement of material, again can be with Simplified flowsheet, it is preferred that the percentage by weight of Nb is 0.3-0.5%, is more highly preferred to, and the percentage by weight of Nb is 0.4%.
Ti:0.5-0.9%
Ti(titanium) it is stabilizing element, be mainly combined with C, N and prevent C, N compound formation of Cr from causing Cr-depleted region, thus reduce the corrosion resistance of material, Ti is mainly combined with N；Ti can also improve the recrystallization temperature of steel, makes the crystal grain of steel refine, and 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 0.5%.But Ti also influences whether the surface quality of steel as field trash, simultaneously because Ti is oxidizable in adition process, can bring certain difficulty to steel-making, in order to avoid Ti causes the manufacturing process complexity of material, the percentage by weight of Ti should control below 0.9%.In the present invention, the percentage by weight of Ti is 0.5-0.9%, 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 0.6-0.8%, being more highly preferred to, the percentage by weight of Ti is 0.7%.
Bi:0.1-0.5%
Bi(bismuth) addition can improve mechanical strength and the plasticity of stainless steel material, the percentage by weight of the Bi that the present invention uses is 0.4-0.8%.Preferably, the percentage by weight of Bi is 0.5-0.7%, is more highly preferred to, and the percentage by weight of Bi is 0.6%.
Al:0.04-0.08%
Al(aluminium in low carbon-structural steel) contribute to increasing hardness and the intensity of steel；Chrome-molybdenum steel and chromium steel can increase its wearability containing Al；In high carbon tool steel, the existence of Al can make generation quenching fragility, and in order to improve intensity and the wearability of material, the percentage by weight of Al should control more than 0.04%.But the Al adding excess can affect toughness and the processing characteristics of material, causing the toughness of material and plasticity to decline in order to avoid Al is too high, the percentage by weight of Al should control below 0.08%.In the present invention, the percentage by weight of Al is 0.04-0.08%, both can meet intensity and the wearability requirement of material, can ensure that again toughness and the plasticity of material, preferably, the percentage by weight of Al is 0.05-0.07%, is more highly preferred to, and the percentage by weight of Al is 0.06%.
B:0.001-0.005%
Due to the minimizing of ferrite content in present component austenitic stainless steel, the easy segregation of impurity element S, P is at intergranular, and reduces its hot-workability, forms micro-crack on surface, therefore by adding boundary-strengthening element B(boron) its thermoplasticity can be improved；The B of certain content can increase the forming core point in austenitic stainless steel process of setting, and grain-boundary strength can be increased, such that it is able to prevent the surface defect that causes owing between phase boundary plasticity is different, therefore, in order to improve thermoplasticity and the intensity of material, the percentage by weight of B should control more than 0.001%.But too high B content can promote the precipitation of intermetallic phase in austenitic stainless steel, affecting mechanics and the processing characteristics of alloy, cause in order to avoid B is too high the mechanics of material and processing characteristics to decline, the percentage by weight of B should control below 0.005%.In the present invention, the percentage by weight of B is 0.001-0.005, both can meet thermoplasticity and the requirement of strength of material, can meet again mechanical property and the processing characteristics of material, preferably, the percentage by weight of B is 0.002-0.004%, is more highly preferred to, and the percentage by weight of B is 0.003%.
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(sulphur) it is all the oxious component in steel, too high p and s content can cause the intensity of steel drastically to decline, and steel can be caused to become fragile, it is necessary to strict control.Therefore, the weight/mass percentage composition of the P that the present invention uses 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 uses 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: La:0.008-0.012%, Y:0.004-0.008% and Nd:0.001-0.005%.
Rare-earth elements La (lanthanum) joins in stainless steel material, thus it is possible to vary the composition of steel inclusion, form, distribution and character, thus improves the various performances of steel, such as heat resistance, toughness, weldability, wearability etc..Rare-earth elements La has the effect of oozing of significantly urging to tufftride process, increases (γ) the phase content in compound layer, and makes case hardness and wearability generation respective change；The heat resistance that La can improve, improves the corrosion resistance of material surface, and the appropriate La that adds can be effectively improved the impact flexibility of infiltration layer.In the present invention, the percentage by weight of La 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 La is 0.009-0.011%, is more highly preferred to, and the percentage by weight of La is 0.010%.
Rare earth element y (yttrium) can be with the common 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 N is precipitated with retarding action to the σ phase of fragility, improves material structure stability under the high temperature conditions.The present invention is by controlling N and the content of Rare Earth Y in stainless steel, and reduces the content of O Yu S in stainless steel, thus ensure that alloy has excellent heat resistance and excellent plasticity, has and compares OCr25Ni2O more preferable applied at elevated temperature performance, the most substantially reduces the content of Ni, 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 heat resistance 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 Nd (erbium) is 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 improves the impact flexibility of steel, therefore, in order to improve the impact flexibility of material, the percentage by weight of Nd should control more than 0.001%.But too much addition rare earth Nd, can react with the matrix of steel, form iron cerium brittlement phase, steel inclusion total amount can be caused to increase simultaneously, affect the cleanliness factor of steel, cause toughness to decline, therefore, cause the impact toughness decreased of material in order to avoid Nd is too high, the percentage by weight of Nd should control below 0.005%.In the present invention, the percentage by weight of Nd is 0.001-0.005%, and the impact flexibility performance that can make material is optimal, it is preferred that the percentage by weight of Nd is 0.002-0.004%, is more highly preferred to, and the percentage by weight of Nd is 0.003%.
The present invention is by adding tri-kinds of rare earth elements of La, Y and Nd, 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:
0.25%≤C+N≤0.30% ... (1)
2.6%≤Si+Mn≤3.0% ... (2)
14.0≤Cr+Ni-Mo≤16.6% ... (3)
0.4%≤Nb/Ti≤1.0% ... (4)
0.16%≤Bi+Al+B≤0.56% ... (5)
Wherein, C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Bi, Al and B represent the percentage by weight of each element respectively.
(1) (C+N) of formula is to affect the intensity of material, bending machining performance and welding position toughness and then affect the factor of welding position pressworkability, in the range of being limited to 0.25%-0.30% in the present invention.Being experimentally confirmed, when (C+N) is less than 0.25%, the intensity of martensitic structure is too low, i.e. becomes the line and staff control of ferrite+martensite, and tensile strength can not reach more than 850MPa.When (C+N) is more than 0.30%, owing to C, N make martensite significantly harden, when C, N content height, the difference of hardness of soft ferrite and hard martensite is the biggest, 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 0.30%, the pressworkability of welding position significantly reduces, in the line and staff control that the reason that welding position pressworkability reduces is the ferrite generated after welding and martensite is constituted, 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 0.25%, and from improving drawing abillity, (C+N) should control below 0.30%.
(2) (Si+Mn) of formula is the factor of intensity and the toughness affecting material, in the range of being limited to 2.6-3.0% in the present invention.Being experimentally confirmed, when (Si+Mn) is less than 2.6%, the strength of materials obtained is poor, and deoxidation effect is bad；When (Si+Mn) is more than 3.0%, the materials hot working and the toughness that obtain are poor, therefore, from the intensity improving material and deoxidation, (Si+Mn) should control more than 2.6%, from the hot-workability improving material and toughness, (Si+Mn) should control below 3.0%.
(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 range of 14.0-16.6%.Cr, Ni and Mo have the effect of corrosion resistance, but the effect that Cr and Ni compounds use is more significantly, is experimentally confirmed, and when (Cr+Ni-Mo) is less than 14.0%, the material corrosion resistance obtained is poor, and intensity is little；When (Cr+Ni-Mo) is more than 16.6%, the plasticity of material and toughness is caused to decline.Therefore, from the intensity improving material and corrosion resistance, (Cr+Ni-Mo) should control more than 14.0%, and from the plasticity improving material and toughness, (Cr+Ni-Mo) should control below 16.6%.
(4) (Nb/Ti) of formula is the factor of the strength and stability affecting material, in the range of being limited to 0.4%-1.0% in the present invention.Being experimentally confirmed, when (Nb/Ti) is less than 0.4%, the strength of materials obtained is little, and less stable, and when (Nb/Ti) is more than 1.0%, the manufacturing process of material is complicated, uneconomical.Therefore, from the strength and stability improving material, (Nb/Ti) should control more than 0.4%, and the manufacturing process of formed material of conforming to the principle of simplicity is set out, and (Nb/Ti) should control below 1.0%.
(5) (Bi+Al+B) of formula is the factor of intensity and the plasticity affecting material, in the range of being limited to 0.16%-0.56% in the present invention.Being experimentally confirmed, when (Bi+Al+B) is less than 0.16%, the strength of materials obtained is little, and plasticity is poor, and when (Bi+Al+B) is more than 0.56%, the manufacturing process of material is complicated, uneconomical.Therefore, from the intensity improving material and plasticity, (Bi+Al+B) should control more than 0.16%, and the manufacturing process of formed material of conforming to the principle of simplicity is set out, and (Bi+Al+B) should control below 0.56%.
Another object of the present invention is achieved through the following technical solutions: the preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1080-1120 DEG C Homogenization Treatments, 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 at a temperature of 1000-1040 DEG C solution treatment, and the process time is 2-3h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 the most 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 improving the metallurgical quality of ingot blank and the means of extrusion performance, 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.The purpose of annealing is to eliminate tissue defects, improves tissue and makes homogenization of composition and crystal grain thinning, improve the mechanical property of steel, reduce residual stress, can improve hardness simultaneously, improves plasticity and toughness, 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 the most fully be dissolved in solid solution, 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 shaping.
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 remaining element in addition to 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；
It is initially charged C and can provide sufficient C amount for C-O reaction, thus the eliminating of the beneficially gas such as N, O；Owing to Cr is easy to be combined with N, being unfavorable for the removal of N in melt, 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, refine with the temperature of 1480-1520 DEG C, keep 50-70min；
Liquid level fusion keeps calmness when no longer having bubble to overflow, the most molten after, refine.The temperature of refining is the highest, and refining time is the longest, and degasifying effect is the best, and in melt, gas content is the lowest.But temperature is too high or overlong time, can aggravate crucible oxygen supply reaction, make oxygen content in steel increase on the contrary, this time the temperature of refining 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, being unfavorable for the removal of N in melt, therefore metal Cr must all reserve, and adds after N is qualified；Owing to this stage Cr addition is more, may bring more N into, therefore this stage needs to melt Cr at a slow speed, so that N gets rid of as far as possible.
A4, after Cr melts, again 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, the most molten after, refine.The temperature of refining is the highest, and refining time is the longest, and degasifying effect is the best, and in melt, gas content is the lowest.But temperature is too high or overlong time, can aggravate crucible oxygen supply reaction, make oxygen content in steel increase on the contrary, this time the temperature of refining 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 a temperature of 1000-1040 DEG C 40-80min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 40-80min at a temperature of-100～-140 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 600-640 DEG C 4-8h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 900-940 DEG C, be incubated 5-15min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 360-400 DEG C, be incubated 1-3h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 30-40g, sodium carbonate 20-30g, sodium phosphate 15-25g, iso-octyl sodium sulphate 2-4g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 3-5min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 60-100mL, hydrochloric acid 60-100mL, ethanol 60-100mL, sodium metasilicate 2-4g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 30-40mL, lauryl sodium sulfate 35-45mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 100-120 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
The beneficial effects of the present invention is: the high-ductility environment friendly stainless steel coffee pot material of the present invention adds Bi, Al and B element, can significantly improve intensity and the plasticity of material；Also reduce the production cost of material, and non-renewable Ni resource can be saved, belong to ep-type material.
The high-ductility environment friendly stainless steel coffee pot material of the present invention, compares with traditional similar material, the tensile strength >=880Mpa of the stainless steel coffee pot material of the present invention, yield strength >=720Mpa；Impact flexibility >=220J, fracture toughness >=100J, elongation at break >=37%, hardness >=46HRC, also there is excellent decay resistance: the corrosion rate >=0.0120mm/ of material under 3.5%NaCl solution environmental, at 5%H2S04Corrosion rate >=the 0.0378mm/ of material, good combination property under solution environmental, it is simple to processing, environmental protection.
The high-ductility environment friendly stainless steel coffee pot material of the present invention, its chemical composition includes C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Bi, Al and B, surplus is iron and impurity, by the strict content controlling every kind of element, material is made to have higher plasticity, environmental protection, and also there is higher intensity, toughness, hardness, wearability, heat resistance and corrosion resistance, excellent combination property.
The preparation method of the present invention uses 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 preferable plasticity, meets the needs of deformation processing.
The preparation method of the present invention uses with the material fit of the present invention, can 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, the content that embodiment is mentioned not limitation of the invention.
Embodiment 1
A kind of high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.21%, N:0.06%, Si:0.8%, Mn:2.0%, Cr:9%, Ni:7%, Mo:1.0%, Nb:0.2%, Ti:0.5%, Bi:0.1%, Al:0.08%, B:0.005%, surplus are iron 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: La:0.008%, Y:0.004-% and Nd:0.001%.
The preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1080 DEG C Homogenization Treatments, 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 at a temperature of 1000 DEG C solution treatment, and the process time is 3h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 remaining element in addition to 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, 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 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 a temperature of 1000 DEG C 80min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 80min at a temperature of-100 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 600 DEG C 8h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 900 DEG C, be incubated 15min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 360 DEG C, be incubated 3h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 30g, sodium carbonate 20g, sodium phosphate 15g, iso-octyl sodium sulphate 2g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 3min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 60mL, hydrochloric acid 60mL, ethanol 60mL, sodium metasilicate 2g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 30mL, lauryl sodium sulfate 35mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 100 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
Embodiment 2
A kind of high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.22%, N:0.05%, Si:0.9%, Mn:1.9%, Cr:9.5%, Ni:6.5%, Mo:0.9%, Nb:0.3%, Ti:0.6%, Bi:0.2%, Al:0.07%, B:0.004%, surplus are iron 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: La:0.009%, Y:0.005% and Nd:0.002%.
The preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1090 DEG C Homogenization Treatments, 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 at a temperature of 1010 DEG C solution treatment, and the process time is 2.8h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 remaining element in addition to 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, 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 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 a temperature of 1010 DEG C 70min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 70min at a temperature of-110 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 610 DEG C 7h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 910 DEG C, be incubated 12min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 370 DEG C, be incubated 2.5h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 32g, sodium carbonate 22g, sodium phosphate 18g, iso-octyl sodium sulphate 2.5g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 3.5min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 70mL, hydrochloric acid 70mL, ethanol 70mL, sodium metasilicate 2.5g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 32mL, lauryl sodium sulfate 38mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 105 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
Embodiment 3
A kind of high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.23%, N:0.04%, Si:1.0%, Mn:1.8%, Cr:10%, Ni:6%, Mo:0.8%, Nb:0.4%, Ti:0.7%, Bi:0.3%, Al:0.06%, B:0.003%, surplus are iron 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: La:0.01%, Y:0.006% and Nd:0.003%.
The preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1100 DEG C Homogenization Treatments, 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 at a temperature of 1020 DEG C solution treatment, and the process time is 2.5h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 remaining element in addition to 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, 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 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 a temperature of 1020 DEG C 60min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 60min at a temperature of-120 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 620 DEG C 6h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 920 DEG C, be incubated 10min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 380 DEG C, be incubated 2h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 35g, sodium carbonate 25g, sodium phosphate 20g, iso-octyl sodium sulphate 3g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 4min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 80mL, hydrochloric acid 80mL, ethanol 80mL, sodium metasilicate 3g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 35mL, lauryl sodium sulfate 40mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 110 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
Embodiment 4
A kind of high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.24%, N:0.03%, Si:1.1%, Mn:1.7%, Cr:10.5%, Ni:5.5%, Mo:0.7%, Nb:0.5%, Ti:0.8%, Bi:0.4%, Al:0.05%, B:0.002%, surplus are iron 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: La:0.011%, Y:0.007% and Nd:0.004%.
The preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1110 DEG C Homogenization Treatments, 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 at a temperature of 1030 DEG C solution treatment, and the process time is 2.2h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 remaining element in addition to 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, 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 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 a temperature of 1030 DEG C 50min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 50min at a temperature of-130 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 630 DEG C 5h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 930 DEG C, be incubated 8min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 390 DEG C, be incubated 1.5h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 38g, sodium carbonate 28g, sodium phosphate 22g, iso-octyl sodium sulphate 3.5g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 4.5min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 90mL, hydrochloric acid 90mL, ethanol 90mL, sodium metasilicate 3.5g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 38mL, lauryl sodium sulfate 42mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 115 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
Embodiment 5
A kind of high-ductility environment friendly stainless steel coffee pot material, its chemical composition includes that the element of following percentage by weight: C:0.25%, N:0.02%, Si:1.2%, Mn:1.6%, Cr:11%, Ni:5%, Mo:0.6%, Nb:0.6%, Ti:0.9%, Bi:0.5%, Al:0.04%, B:0.001%, surplus are iron 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: La:0.012%, Y:0.008% and Nd:0.005%.
The preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1120 DEG C Homogenization Treatments, 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 at a temperature of 1040 DEG C solution treatment, and the process time is 2h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless 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 remaining element in addition to 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, 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 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 a temperature of 1040 DEG C 40min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 40min at a temperature of-140 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 640 DEG C 4h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 940 DEG C, be incubated 5min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 400 DEG C, be incubated 1h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
A kind of high-ductility environment friendly stainless steel coffee pot, described stainless steel coffee pot processes prepared according to high-ductility environment friendly stainless steel coffee pot material described above through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 40g, sodium carbonate 30g, sodium phosphate 25g, iso-octyl sodium sulphate 4g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 5min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 100mL, hydrochloric acid 100mL, ethanol 100mL, sodium metasilicate 4g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 40mL, lauryl sodium sulfate 45mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 120 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
The mechanical and physical performance of the high-ductility environment friendly stainless steel coffee pot material that embodiment 1-5 prepares is as shown in table 1.
Table 1
The high-ductility environment friendly stainless steel coffee pot material of the present invention, compares with traditional similar material, the tensile strength >=880Mpa of the stainless steel coffee pot material of the present invention, yield strength >=720Mpa；Impact flexibility >=220J, fracture toughness >=100J, elongation at break >=37%, hardness >=46HRC, also there is excellent decay resistance: the corrosion rate >=0.0120mm/ of material under 3.5%NaCl solution environmental, at 5%H2S04Corrosion rate >=the 0.0378mm/ of material, good combination property under solution environmental, it is simple to processing, environmental protection.
The high-ductility environment friendly stainless steel coffee pot material of the present invention, its chemical composition includes C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Bi, Al and B, surplus is iron and impurity, by the strict content controlling every kind of element, material is made to have higher plasticity, environmental protection, and also there is higher intensity, toughness, hardness, wearability, heat resistance and corrosion resistance, excellent combination property.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can realize with alternate manner, and the most any obvious replacement is all within protection scope of the present invention.

Claims (10)

1. a high-ductility environment friendly stainless steel coffee pot material, it is characterised in that: its chemical composition includes that the element of following percentage by weight: C:0.21-0.25%, N:0.02-0.06%, Si:0.8-1.2%, Mn:1.6-2.0%, Cr:9-11%, Ni:5-7%, Mo:0.6-1.0%, Nb:0.2-0.6%, Ti:0.5-0.9%, Bi:0.1-0.5%, Al:0.04-0.08%, B:0.001-0.005%, surplus are iron and impurity.
A kind of high-ductility environment friendly stainless steel coffee pot material the most according to claim 1, it is characterised in that: its chemical composition includes that the element of following percentage by weight: C:0.22-0.24%, N:0.03-0.05%, Si:0.9-1.1%, Mn:1.7-1.9%, Cr:9.5-10.5%, Ni:5.5-6.5%, Mo:0.7-0.9%, Nb:0.3-0.5%, Ti:0.6-0.8%, Bi:0.2-0.4%, Al:0.05-0.07%, B:0.002-0.004%, surplus are iron and impurity.
A kind of high-ductility environment friendly stainless steel coffee pot material the most according to claim 1, it is characterised in that: its chemical composition includes that the element of following percentage by weight: C:0.23%, N:0.04%, Si:1.0%, Mn:1.8%, Cr:10%, Ni:6%, Mo:0.8%, Nb:0.4%, Ti:0.7%, Bi:0.3%, Al:0.06%, B:0.003%, surplus are iron and impurity.
A kind of high-ductility environment friendly stainless steel coffee pot material the most 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%.
A kind of high-ductility environment friendly stainless steel coffee pot material the most 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: La:0.008-0.012%, Y:0.004-0.008% and Nd:0.001-0.005%.
A kind of high-ductility environment friendly stainless steel coffee pot material the most according to claim 1, it is characterised in that: the chemical composition of described material meets below equation:
0.25%≤C+N≤0.30% ... (1)
2.6%≤Si+Mn≤3.0% ... (2)
14.0≤Cr+Ni-Mo≤16.6% ... (3)
0.4%≤Nb/Ti≤1.0% ... (4)
0.16%≤Bi+Al+B≤0.56% ... (5)
Wherein, C, N, Si, Mn, Cr, Ni, Mo, Nb, Ti, Bi, Al and B represent the percentage by weight of each element respectively.
7. the preparation method of a kind of high-ductility environment friendly stainless 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 at a temperature of 1080-1120 DEG C Homogenization Treatments, 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 at a temperature of 1000-1040 DEG C solution treatment, and the process time is 2-3h, and then oil is cooled to room temperature, obtains steel；
F, heat treatment: be heat-treated by the steel after solution treatment, prepare high-ductility environment friendly stainless steel coffee pot material.
The preparation method of a kind of high-ductility environment friendly stainless steel coffee pot material the most 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 remaining element in addition to 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, 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 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.
The preparation method of a kind of high-ductility environment friendly stainless steel coffee pot material the most 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 a temperature of 1000-1040 DEG C 40-80min, oil is cooled to room temperature；
F2, by step F1 cool down after steel cold treatment 40-80min at a temperature of-100～-140 DEG C；
F3, the steel after the cold treatment of step F2 being incubated at a temperature of 600-640 DEG C 4-8h, air cooling is to room temperature；
F4, step F3 is cooled down after steel at a temperature of 900-940 DEG C, be incubated 5-15min, water-cooled or oil be cooled to room temperature；
F5, step F4 is cooled down after steel at a temperature of 360-400 DEG C, be incubated 1-3h, air cooling to room temperature, prepared high-ductility environment friendly stainless steel coffee pot material.
10. a high-ductility environment friendly stainless steel coffee pot, it is characterised in that: described stainless steel coffee pot processes prepared according to the high-ductility environment friendly stainless steel coffee pot material described in any one of claim 1-6 through cast molding and surface；Described surface process processing step particularly as follows:
(1) pretreatment: first with sand papering stainless 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: NaOH 30-40g, sodium carbonate 20-30g, sodium phosphate 15-25g, iso-octyl sodium sulphate 2-4g, deionized water surplus；
(2) pickling membrane removal: wash after step (1) pretreated stainless steel coffee pot is at room temperature used nitration mixture pickling 3-5min；Every liter of degreasing fluid is made up of following raw material: sulfuric acid 60-100mL, hydrochloric acid 60-100mL, ethanol 60-100mL, sodium metasilicate 2-4g, deionized water surplus；
(3) surface active: the stainless 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 ultrasonic wave, remove the corrosion product of specimen surface；Solution used by Ultrasonic Cleaning is made up of following raw material: watery hydrochloric acid 30-40mL, lauryl sodium sulfate 35-45mg, deionized water surplus；
(4) drying is rinsed: the stainless steel coffee pot after step (3) being processed is first clean by cold water flush, then dries at a temperature of 100-120 DEG C, cooling, prepared high-ductility environment friendly stainless steel coffee pot.
CN201610233657.1A 2016-04-15 2016-04-15 High-plasticity environment-friendly stainless steel coffee pot material and method for preparing same Pending CN105755400A (en)

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CN107626094A (en) * 2016-07-19 2018-01-26 丹阳市飞利健身器材有限公司 A kind of stainless center slideway of rowing machine anti-corrosion

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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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Publication number Priority date Publication date Assignee Title
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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