CN107552567A - The preparation method of 1Cr17 ferrite stainless steel pipes - Google Patents
The preparation method of 1Cr17 ferrite stainless steel pipes Download PDFInfo
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- CN107552567A CN107552567A CN201710802962.2A CN201710802962A CN107552567A CN 107552567 A CN107552567 A CN 107552567A CN 201710802962 A CN201710802962 A CN 201710802962A CN 107552567 A CN107552567 A CN 107552567A
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 52
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 38
- 239000010935 stainless steel Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000011282 treatment Methods 0.000 claims abstract description 32
- 239000003607 modifier Substances 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000005097 cold rolling Methods 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 239000011651 chromium Substances 0.000 claims abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 239000010703 silicon Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005864 Sulphur Substances 0.000 claims abstract description 12
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000011574 phosphorus Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005406 washing Methods 0.000 abstract description 7
- 238000000137 annealing Methods 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005242 forging Methods 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- 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
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
-
- 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
- C22C38/04—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
-
- 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of preparation method of 1Cr17 ferrite stainless steel pipes, belongs to ferritic stainless steel preparing technical field.First 1Cr17 ferrite stainless steel pipe bases are preheated and are incubated, then perforates and controls compression ratio before top, obtain hot-puncturing process pipe, wherein, the chemical element and its quality % ratios of 1Cr17 ferritic stainless steels are：0.08 0.12% carbon ,≤0.04% silicon ,≤0.70% manganese, 16.40 17.00% chromium ,≤0.035% phosphorus ,≤0.010% sulphur, remaining is iron；Obtained hot-puncturing process pipe is subjected to modifier treatment, obtains the perforated pipe of modifier treatment；The perforated pipe of modifier treatment to obtaining carries out normal temperature cold rolling and controls the elongation percentage of normal temperature cold rolling, obtains cold rolled tube；Cold rolled tube is heat-treated, heat treatment is cooled to normal temperature after terminating, and obtains finished product.With good toughness, requirement of the satisfaction as the part of automatic washing machine friction plate etc.
Description
Technical field
The invention belongs to ferritic stainless steel preparing technical field, and in particular to a kind of 1Cr17 ferrite stainless steel pipes
Preparation method.
Background technology
Foregoing 1Cr17 ferritic stainless steels are a kind of corrosion resisting property and the excellent steel grade of anti-wear performance, applied to building
Interior trim, heavy oil burner part, household electrical appliance and electronic product, or even for making fastener such as bolt, nut etc..Just
It is due to that 1Cr17 ferritic stainless steels have and are not limited to foregoing excellent corrosion-resistant and anti-wear performance, thus its purposes is continuous
Extension.But as is known in the industry, the physical indexs of the 1Cr17 ferritic stainless steels of different purposes is different, and different thing
Reason index needs to ensure by corresponding preparation technology.
Typical example such as, if 1Cr17 ferritic stainless steels are made into washing machine friction plate, then to its tensile strength,
Yield strength, elongation, the contraction percentage of area and HRB have harsh requirement, while it is also desirable to have certain toughness, in
It is, if chemical element known to the selection to its material blindness and its quality % than content and continue to use known preparation side
Method, then the 1Cr17 ferrite stainless steel pipes of preparation can not meet the service demand of washing machine friction plate.
The technical information of the preparation method of ferritic stainless steel can be seen in disclosed Chinese patent literature, such as
CN105839021B recommends to have " preparation method of the ferrite stainless steel pipe containing rare-earth and high chromium ", and the quality % ratios of each component are：C+N
0.005-0.025%, silicon 0.7-1.6%, manganese 0.3-1%, P≤0.04%, S≤0.03%, Cr 22-27%, Nb 0.1-
0.4%th, Al 1.1-1.8% and rare earth element ce+La 0.01-0.3%, remaining is Fe and inevitable impurity, manufacture method
Including previous step and forging step, the oxygen content 10-150ppm of control molten steel before rare earth alloy is added in forging, is then added
Enter rare earth alloy, it is 0.01-0.1% to make steel rare earth elements Ce+La contents；CN104858258A is provided with a kind of " modified
The production method of ferritic stainless seamless steel tube ", it is that solid steel is perforated to form steel tube blank (hollow forging), sour successively
Wash and cold rolling, the step of increase is preheated using induction coil to steel tube blank between pickling and cold rolling step, make steel tube blank
Being preheated to 320-280 DEG C, (in 1 to 2min, the preheating temperature of steel tube blank is 280-260 DEG C, and the preheating temperature after 2min is
260-220 DEG C), it is in place of the achievement of the patent formula：Make the smooth flawless in the surface after cold rolling, whole Zhi Gang is made by preheating
Each section of temperature is managed to be consistent and improve tube quality (the 0011st section of specification)；CN104862593B, which is introduced, that " ferrite is not
The preparation method of rust steel seamless steel tube ", its chemical element and its % ratios are：C≤0.03%, Si 0.7-1.1%, Mn≤1%, P
≤ 0.03%, S≤0.02%, Cr17-19%, Ti 0.2-0.4%, N≤0.025%, Cu≤0.25%, Al 0.8-1.2%,
Remaining is Fe, and the patent is to improve inoxidizability by improving Si and Al quality % ratios, and it is strong to make it have high surrender
Degree and low plasticity (see the 0018th section of specification)；CN106795608A, which is disclosed, " ferrite stainless steel, steel pipe and its manufacture
Method ", chemical element have Cr, C, Si, Mn, P, S, Al, Ti and Nb etc..
The information that the applicant obtains from domestic washing machine production firm is：Washed by what 1Cr17 ferritic stainless steels made
The physical index of clothing machine friction plate need to meet tensile strength be more than 850MPa, yield strength be more than 600MPa, elongation >=30%,
The contraction percentage of area >=50% and hardness (HRB) it is also desirable to have good toughness more than 90.It is this yet with meeting
The steel pipe of harsh technical indicator still belongs to blank in China at present, can only be at high price to external import.It is therefore desirable to autonomous from industry
Angle, which is set out, to be explored and is tested, and technical scheme described below is caused under this background.
The content of the invention
The task of the present invention is to improve a kind of preparation method of 1Cr17 ferrite stainless steel pipes, prepared by this method
1Cr17 ferrite stainless steel pipes have excellent tensile strength, yield strength, elongation, the contraction percentage of area and hardness and conjunction
The toughness of reason and use meet as automatic washing machine friction plate etc part requirement.
What the task of the present invention was performed by, a kind of preparation method of 1Cr17 ferrite stainless steel pipes, including it is following
Step：
A hot-puncturing process pipe) is prepared, first 1Cr17 ferrite stainless steel pipe bases are preheated and is incubated and controls preheating temperature
And soaking time, then perforate and control compression ratio before top, obtain hot-puncturing process pipe, wherein, the 1Cr17 ferrites are not
Become rusty steel chemical element and its quality % ratios be：0.08-0.12% carbon ,≤0.04% silicon ,≤0.70% manganese, 16.40-
17.00% chromium ,≤0.035% phosphorus ,≤0.010% sulphur, remaining is iron；
B) modifier treatment, by by step A) obtained hot-puncturing process pipe carries out modifier treatment and controls modifier treatment temperature
Degree, obtains the perforated pipe of modifier treatment；
C) rolling, to by step B) the obtained perforated pipe of modifier treatment carries out normal temperature cold rolling and controls normal temperature cold rolling
Elongation percentage, obtain cold rolled tube；
D) it is heat-treated, by by step C) obtained cold rolled tube is heat-treated and controls heat treatment temperature and during heat treatment
Between, heat treatment is cooled to normal temperature after terminating, and obtains 1Cr17 ferrite stainless steel pipes.
In one particular embodiment of the present invention, step A) described in control preheating temperature be to control preheating temperature
For 900-1100 DEG C, it is described control soaking time be by soaking time control be 2-3min, compression before described control top
It by rate control before top is 4-4.5% that rate, which is,.
The present invention another specific embodiment in, step A) described in the chemistry to 1Cr17 ferritic stainless steels
Element and its quality % ratios are：0.08% carbon, 0.03% silicon, 0.6% manganese, 16.40% chromium, 0.035% phosphorus,
0.005% sulphur, remaining is iron.
The present invention another specific embodiment in, step A) described in the chemistry to 1Cr17 ferritic stainless steels
Element and its quality % ratios are：0.12% carbon, 0.04% silicon, 0.58% manganese, 17.00% chromium, 0.030% phosphorus,
0.010% sulphur, remaining is iron.
The present invention another specific embodiment in, step A) described in the chemistry to 1Cr17 ferritic stainless steels
Element and its quality % ratios are：0.10% carbon, 0.035% silicon, 0.68% manganese, 16.70% chromium, 0.032% phosphorus,
0.009% sulphur, remaining is iron.
The present invention also have a specific embodiment in, step B) described in control modifier treatment temperature be by
The temperature control of modifier treatment is 750-850 DEG C.
In a still more specific embodiment of the invention, step C) described in the elongation percentage of control normal temperature cold rolling be
It it is 2.4-3.0 times by elongation control.
The present invention so that in a specific embodiment, step D) described in control heat treatment temperature and heat treatment
Time is that heat treatment temperature and heat treatment time are controlled as into 900-950 DEG C and 20-30min.
Step D in yet a further embodiment of the present invention) described in be cooled to water cooling.
The tensile strength for the 1Cr17 ferrite stainless steel pipes that technical scheme provided by the invention obtains reaches 898-
905MPa, yield strength reach 680-720MPa, elongation reaches 32-34%, the contraction percentage of area reaches 50-58% and hardness
(HRB) reach 90-99 and there is good toughness, thus the part as automatic washing machine friction plate etc can be met
Requirement.
Embodiment
Embodiment 1
A hot-puncturing process pipe) is prepared, 900 first are preheated to a diameter of Φ 65mm 1Cr17 ferrite stainless steel pipe pipes
DEG C, and 3min is incubated at 900 DEG C, then perforated, compression ratio is 4% before top, obtains that external diameter is Φ 67mm and wall thickness is
6mm hot-puncturing process pipe, the chemical element and its quality % ratios of the 1Cr17 ferrite stainless steel pipes described in this step are：
0.08% carbon, 0.03% silicon, 0.60% manganese, 16.40% chromium, 0.035% phosphorus, 0.005% sulphur, remaining is
Iron；
B) modifier treatment, modifier treatment can also claim Homogenization Treatments or annealing, be specifically：Will be by step A) obtain
The hot-puncturing process pipe that a diameter of Φ 67mm and wall thickness are 6mm introduces annealing furnace (annealing furnace is also referred to as hardening and tempering furnace) annealing, annealing temperature
Spend for 800 DEG C, obtain the perforated pipe of modifier treatment；
C) rolling, to by step B) the obtained perforated pipe of modifier treatment carries out normal temperature cold rolling, and in cold-rolled process
Elongation percentage is 2.44 times, obtains cold rolled tube, and the external diameter of the cold rolled tube after the cold rolling is Φ 38mm, wall thickness is 4.5mm and length
Spend for 7mm；
D) it is heat-treated, by by step C) obtained cold rolled tube introduces heat-treatment furnace and is heat-treated, heat treatment temperature 930
DEG C, and keep i.e. insulation 25min, heat treatment to terminate rear water cooling to normal temperature, obtain 1Cr17 ferrite stainless steel pipes at 930 DEG C.
Embodiment 2
A hot-puncturing process pipe) is prepared, 1100 first are preheated to a diameter of Φ 65mm 1Cr17 ferrite stainless steel pipe pipes
DEG C, and 2min is incubated at 1100 DEG C, then perforate, compression ratio is 4.2% before top, and it is Φ 67mm and wall thickness to obtain external diameter
For 6.2mm hot-puncturing process pipe, the chemical element and its quality % ratios of the 1Cr17 ferrite stainless steel pipes described in this step
For：0.12% carbon, 0.04% silicon, 0.58% manganese, 17.00% chromium, 0.03% phosphorus, 0.01% sulphur, remaining is
Iron；
B) modifier treatment, modifier treatment can also claim Homogenization Treatments or annealing, be specifically：Will be by step A) obtain
The hot-puncturing process pipe that a diameter of Φ 67mm and wall thickness are 6.2mm introduces annealing furnace (annealing furnace is also referred to as hardening and tempering furnace) annealing, annealing
Temperature is 750 DEG C, obtains the perforated pipe of modifier treatment；
C) rolling, to by step B) the obtained perforated pipe of modifier treatment carries out normal temperature cold rolling, and in cold-rolled process
Elongation percentage is 2.7 times, obtains cold rolled tube, and the external diameter of the cold rolled tube after the cold rolling is Φ 38mm, wall thickness is 4.5mm and length
For 8.8mm；
D) it is heat-treated, by by step C) obtained cold rolled tube introduces heat-treatment furnace and is heat-treated, heat treatment temperature 900
DEG C, and keep i.e. insulation 30min, heat treatment to terminate rear water cooling to normal temperature, obtain 1Cr17 ferrite stainless steel pipes at 900 DEG C.
Embodiment 3
A hot-puncturing process pipe) is prepared, 1000 first are preheated to a diameter of Φ 65mm 1Cr17 ferrite stainless steel pipe pipes
DEG C, and 2.5min is incubated at 1000 DEG C, then perforate, compression ratio is 4.5% before top, and it is Φ 67mm and wall to obtain external diameter
Thickness be 6.5mm hot-puncturing process pipe, the chemical element and its quality % ratios of the 1Cr17 ferrite stainless steel pipes described in this step
For：0.10% carbon, 0.035% silicon, 0.68% manganese, 16.70% chromium, 0.032% phosphorus, 0.009% sulphur, remaining
For iron；
B) modifier treatment, modifier treatment can also claim Homogenization Treatments or annealing, be specifically：Will be by step A) obtain
The hot-puncturing process pipe that a diameter of Φ 67mm and wall thickness are 6.5mm introduces annealing furnace (annealing furnace is also referred to as hardening and tempering furnace) annealing, annealing
Temperature is 850 DEG C, obtains the perforated pipe of modifier treatment；
C) rolling, to by step B) the obtained perforated pipe of modifier treatment carries out normal temperature cold rolling, and in cold-rolled process
Elongation percentage is 3 times, obtains cold rolled tube, and the external diameter of the cold rolled tube after the cold rolling is Φ 38mm, wall thickness is 4.5mm and length is
10.9mm；
D) it is heat-treated, by by step C) obtained cold rolled tube introduces heat-treatment furnace and is heat-treated, heat treatment temperature 950
DEG C, and keep i.e. insulation 20min, heat treatment to terminate rear water cooling to normal temperature, obtain 1Cr17 ferrite stainless steel pipes at 950 DEG C.
After tested there is the technology shown in following table to refer to as the 1Cr17 ferrite stainless steel pipes that above-described embodiment 1 to 3 obtains
Mark：
(note：GB/T228.1 metal material stretching test Part I is pressed in above-mentioned test：Room temperature test method and GB/
The experiment of T230.1 metal materials Rockwell Hardness is tested)
In summary, the 1Cr17 ferrite stainless steel pipes that prepared by the present invention can fully meet to rub as automatic washing machine
The requirement of the part of pad etc.
Claims (9)
1. a kind of preparation method of 1Cr17 ferrite stainless steel pipes, it is characterised in that comprise the following steps：
A）Hot-puncturing process pipe is prepared, first 1Cr17 ferrite stainless steel pipe bases are preheated and is incubated and controls preheating temperature and guarantor
The warm time, then perforate and control compression ratio before top, obtain hot-puncturing process pipe, wherein, the 1Cr17 ferritic stainless steels
Chemical element and its quality % ratios be：0.08-0.12% carbon ,≤0.04% silicon ,≤0.70% manganese, 16.40-17.00%
Chromium ,≤0.035% phosphorus ,≤0.010% sulphur, remaining is iron；
B) modifier treatment, will be by step A）Obtained hot-puncturing process pipe carries out modifier treatment and controls modifier treatment temperature, obtains
To the perforated pipe of modifier treatment；
C）Rolling, to by step B) the obtained perforated pipe of modifier treatment carries out normal temperature cold rolling and controls the extension of normal temperature cold rolling
Rate, obtain cold rolled tube；
D）Heat treatment, will be by step C）Obtained cold rolled tube is heat-treated and controls heat treatment temperature and heat treatment time,
Heat treatment is cooled to normal temperature after terminating, and obtains 1Cr17 ferrite stainless steel pipes.
A kind of 2. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step A）In
The described preheating temperature that controls is to control preheating temperature for 900-1100 DEG C, and described control soaking time is by soaking time
Control as 2-3min, it is described control before top compression ratio be by rate control before top be 4-4.5%.
A kind of 3. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step A）In
The described chemical element and its quality % ratios to 1Cr17 ferritic stainless steels be：0.08% carbon, 0.03% silicon, 0.6%
Manganese, 16.40% chromium, 0.035% phosphorus, 0.005% sulphur, remaining is iron.
A kind of 4. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step A）In
The described chemical element and its quality % ratios to 1Cr17 ferritic stainless steels be：0.12% carbon, 0.04% silicon, 0.58%
Manganese, 17.00% chromium, 0.030% phosphorus, 0.010% sulphur, remaining is iron.
A kind of 5. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step A）In
The described chemical element and its quality % ratios to 1Cr17 ferritic stainless steels be：0.10% carbon, 0.035% silicon, 0.68%
Manganese, 16.70% chromium, 0.032% phosphorus, 0.009% sulphur, remaining is iron.
A kind of 6. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step B) in
The described temperature for controlling modifier treatment be by the temperature control of modifier treatment be 750-850 DEG C.
A kind of 7. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step C）In
The described elongation percentage for controlling normal temperature cold rolling be by elongation control be 2.4-3.0 times.
A kind of 8. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step D）In
Described control heat treatment temperature and heat treatment time are that heat treatment temperature and heat treatment time are controlled as into 900-950 DEG C
And 20-30min.
A kind of 9. preparation method of 1Cr17 ferrite stainless steel pipes according to claim 1, it is characterised in that step D）In
Described is cooled to water cooling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802962.2A CN107552567A (en) | 2017-09-08 | 2017-09-08 | The preparation method of 1Cr17 ferrite stainless steel pipes |
| PCT/CN2018/096741 WO2019047624A1 (en) | 2017-09-08 | 2018-07-24 | 1cr17 ferritic stainless steel pipe preparation method |
Applications Claiming Priority (1)
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| WO2019047624A1 (en) * | 2017-09-08 | 2019-03-14 | 苏州钢特威钢管有限公司 | 1cr17 ferritic stainless steel pipe preparation method |
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| WO2019047624A1 (en) * | 2017-09-08 | 2019-03-14 | 苏州钢特威钢管有限公司 | 1cr17 ferritic stainless steel pipe preparation method |
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Application publication date: 20180109 |