CN108411198A - A kind of high-performance stainless steel and seamless steel pipe and its manufacturing method - Google Patents
A kind of high-performance stainless steel and seamless steel pipe and its manufacturing method Download PDFInfo
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- CN108411198A CN108411198A CN201810263863.6A CN201810263863A CN108411198A CN 108411198 A CN108411198 A CN 108411198A CN 201810263863 A CN201810263863 A CN 201810263863A CN 108411198 A CN108411198 A CN 108411198A
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- intermediate tube
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
-
- 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
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C22C38/04—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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium 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
- C23G1/086—Iron or steel solutions containing HF
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The present invention provides a kind of high-performance stainless steel and seamless steel pipes, are made of by mass percentage following chemical composition：C：0.01 0.02%, S：0.015 0.02%, N：0.04 0.06%, Si：0.4 0.6%, Mn：1.5 1.8%, Cu：0.13 0.15%, Mo：0.2 0.22%, Ti：0.023 0.025%, Nb：0.015 0.02%, Ni：0.03 0.04%, Co：0.02 0.04%, B：0.0006 0.0008%, surplus is Fe and impurity element.High-performance stainless steel and seamless steel pipe provided by the invention has comprehensive and good mechanical performance.The manufacturing method of high-performance stainless steel and seamless steel pipe provided by the invention has carried out the optimization and improvement of manufacturing process for distinctive component so that technique is more fine accurate.
Description
Technical field
The present invention relates to tubing field more particularly to a kind of high-performance stainless steel and seamless steel pipe and its manufacturing methods.
Background technology
With the high speed development and scientific and technological progress of national economy, the application range of stainless steel tube is increasingly extensive, to not
The requirement of rust steel pipe is also higher and higher, in order to make stainless steel tube meet the requirement of every field, state on quality and quantity
It is inside and outside to have fast development in terms of the exploitation of new steel grade；China's stainless steel is in the side such as technology, equipment, product quality
Face still has larger gap with international most advanced level, needs to carry out constantly research and development, technological transformation and raising, to adapt to national economy
The requirement of development；Stainless steel tube is widely used to every field at present：Automotive industry, water and wastewater industry, environment-protecting industrial, industry are set
It applies, household electrical appliances industry, the bigger mainly austenitic stainless steel of dosage, with advances in technology with the needs of production, from original
Material resource and material cost and reach physics and chemistry and the angle of mechanical property requirements is required for constantly developing new type stainless steel. corrosion resistance.
Following three kinds of methods are generally taken in the production of stainless-steel seamless pipe：First, perforation, tandem rolling, sizing；Second is that perforation+
Grinding；Third, perforation+hot-expanding pipe.But these methods all there is a problem of various, method one is confined to existing tandem rolling
Unit specification, cannot meet the market demand, and the rolling reduction of method two and method three is too small, the seamless steel pipe craftsmanship of manufacture
Can be poor with mechanical performance, and the defect of hot-expanding pipe is more, and especially manufacture heavy caliber seamless steel pipe has greatly difficult,
It is easy to appear crackles even to split in expanding procedure, and expander is caused to fail.
Application number CN201710252805.9 discloses " a kind of manufacturing method of stainless-steel seamless pipe ", including following step
Suddenly：(1) electroslag ingot is taken to carry out steel ingot bore hole, drilling/rolling makes annealing treatment, and aligning obtains first product seamless steel pipe；It (2) will be first
Product seamless steel pipe carries out first time pushing expander, obtains just expander product；(3) in the surfaces externally and internally of first expander product, uniformly brushing is handled
Slurries are dried under the conditions of 280~320 DEG C, then carry out second of pushing expander, the processing slurries are by following parts by weight
Component be made：No. three 1 part of lithium saponifies, 2~3 parts of molybdenum trioxide, 4~5 parts of calcium phosphate, 6~8 parts of zinc nitrate, sodium metasilicate 6~8
Part, 15~20 parts of polyethylene glycol 400,30~40 parts of water；(4) by step (3), treated, and seamless steel pipe is put into heating furnace,
900 DEG C are warming up to, keeps the temperature 60~80 minutes, staged cooling is carried out according to the amplitude of each 5~8 DEG C of cooling, every time after cooling
Heat preservation 40~50 minutes；700 DEG C are cooled to hereinafter, cooling extent is adjusted to 50~60 DEG C, keeps the temperature 10~20 points after cooling every time
Clock；500 DEG C are cooled to hereinafter, cooling extent is adjusted to 30~40 DEG C, keeps the temperature 20~30 minutes after cooling every time；It is cooled to 450
DEG C hereinafter, then air-cooled 25~35 minutes, then take out, natural cooling.Application number CN201710252804.4 is disclosed
" a kind of heat-resistance stainless steel seamless steel pipe and manufacturing method ", is made of the chemical composition of following mass percent：Carbon 0.2~
0.3%, manganese 1.2~1.4%, germanium 1~1.2%, chromium 0.8~1%, zirconium 0.25~0.3%, titanium 0.1~0.2%, boron 0.045~
0.068%, phosphorus 0.032~0.041%, sulphur 0.011~0.022%, niobium 0.02~0.07%, antimony 0.008~0.02%, vanadium
0.08~0.1%, ruthenium 0.008~0.01%, surplus is iron and inevitable impurity.Existing seamless steel pipe complex process,
Material mixture ratio is improper, and the steel pipe mechanical performance of preparation is poor, and crackle setting is susceptible in the processing procedure to steel pipe
Damage.
Invention content
Place that the purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of high-performance stainless steel and seamless steel pipe, has
There is comprehensive and good mechanical performance.
The present invention also provides a kind of manufacturing methods of high-performance stainless steel and seamless steel pipe, are carried out for distinctive component
The optimization and improvement of manufacturing process so that technique is more fine accurate, and preparation process is efficient at low cost.
In order to achieve the above-mentioned object of the invention, the present invention provides a kind of high-performance stainless steel and seamless steel pipes, by quality percentage
Than being made of following chemical composition：C：0.01-0.02%, S：0.015-0.02%, N：0.04-0.06%, Si：0.4-0.6%,
Mn：1.5-1.8%, Cu：0.13-0.15%, Mo：0.2-0.22%, Ti：0.023-0.025%, Nb：0.015-0.02%,
Ni：0.03-0.04%, Co：0.02-0.04%, B：0.0006-0.0008%, surplus are Fe and inevitable impurity element.
Preferably, it is made of by mass percentage following chemical composition：C：0.01%, S：0.02%, N：0.05%, Si：
0.6%, Mn：1.5%, Cu：0.14%, Mo：0.2%, Ti：0.024%, Nb：0.02%, Ni：0.03%, Co：0.03%, B：
0.0006%, surplus is Fe and inevitable impurity element.
Preferably, the matter of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Measure degree.
A kind of manufacturing method of high-performance stainless steel and seamless steel pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Preferably, two sections of cold rollings in the step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Preferably, the three-stage cooling process in the step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
Preferably, the pickle includes 12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate
0.1wt%, surplus are water.
Preferably, step (5) described rinse bath includes spray chamber, rotating drum and reclaiming chamber successively from top to bottom；The rotation
Turn intracavitary and be provided with the rotating cylinder for placing the intermediate tube, the rotating cylinder is connect with revolving power mechanism, the rotating cylinder table
Multiple leakage holes are arranged in face；
It is placed equidistant with above the spray chamber there are three inlet, the spray chamber lower section is provided with shower plate, the spray
It is provided with the nozzle that multiple liquid by the spray chamber are sprayed in rotating cylinder on leaching plate；
The reclaiming chamber bottom is provided with liquid outlet.
Preferably, the rotating cylinder is connect by connecting shaft with the revolving power mechanism.
Preferably, the reclaiming chamber is set as funnel-form.
The knot for not changing iron is added as micro alloying element in steel using niobium Nb for the stainless-steel seamless pipe of the present invention
Structure, niobium Nb can crystal grain thinning, and reduce the superheated susceptivity of steel, improve stiffness, by with carbon C, nitrogen N and the sulphur S in steel
In conjunction with changing the microstructure of steel, improve the grain-boundary strength of alloy at high temperature, niobium is mainly that fine grain is strong to the invigoration effect of steel
Change and dispersion-strengtherning, for sulphur during heating, the raising of temperature is so that sulphur atom has certain viscosity and mobility, niobium energy
Stable carbide and carbonitride are generated with the carbon nitrogen in steel, and carbide is further helped by the viscosity and mobility of sulphur
Disperse and formed the steel with grain refining with carbonitride, generates precipitation enhancement and passed through with improving the creep strength of alloy
The content for controlling niobium, carbon, nitrogen and sulphur, to change the mechanical performance of stainless-steel seamless pipe, while the rationally content of control carbon, with
Increasing for carbon amounts, the hardness of steel increases, but toughness can decline, and reasonably control carbon amounts, to form solid solution body tissue, carry
The performances such as the intensity of Gao Gang.Boron is especially active at high temperature, and ionization energy is high, and electronegativity is big, and being generated with metal reaction has metal
The nonstoichiometric compound of property, can increase the high temperature robustness of steel alloy.
Two sections of cold rolling process of the present invention can preferably realize the continuous annealing of the steel based on phase transformation strengthening, and increasing crystal boundary has
Effect area is simultaneously effectively formed a large amount of continuous bands, keeps making to form more forming cores in steel while certain ordered arrangement
Point achievees the purpose that further crystal grain thinning so that crystal grain dislocation movement by slip in deformation becomes to be easier to, and is conducive to improve modeling
Property, and it is cooling uniform, steel shape is good after cooling；The three-stage cooling process of the present invention must be that elder generation is air-cooled, then water cooling is finally empty again
Cold sequence carries out, and cannot first carry out water cooling, because water cooling can make product surface temperature reduce suddenly so that crystal
Because of the abrupt change of ambient temperature being slightly variable for grain shape occurs for particle, is had an impact with the performance to product, single
The air-cooled red brittleness that can cause stainless-steel seamless pipe increases, and single water cooling can cause stainless-steel seamless pipe surface and inside
Thus damage prevents being made to seamless steel pipe surface in conjunction with the air-cooled cooling technique reduction with water cooling while reduction suddenly for temperature
At damage while ensure cooling process section when it is energy saving, avoid stainless-steel seamless pipe deformation so that seamless steel pipe group
It knits uniformly, its red brittleness can also be improved.
The pickling process of the present invention considers that by adding a variety of acid groups, each acid group is mutually cooperateed with and compensated, collective effect, is led to
Addition dodecyl sodium sulfate is crossed, spot corrosion tendency in acid cleaning process is reduced and increases, especially reduce metal inside " hydrogen embrittlement " phenomenon
Generation, while pickling after washed again to prevent acid solution intermediate ion in steel surface remaining to stainless-steel seamless pipe table
The damage in face, finally passes through Na again2CO3Solution neutralizes acid group that may be remaining, finally thoroughly removes steel by washing again
The solion of pipe surface.Rinse bath used in pickling process uses the Combination Design of rotary cavity and spray, realization pair
The pickling of stainless-steel seamless pipe is washed away in rotary cavity so that cleaning solution can comprehensively carry out steel tube surface in slot
Soft washes away, and is washed away or soak acid-cleaning is set as dynamic rotary spray pickling by single, improves the matter of pickling process
While amount, further shorten the time of pickling process.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of rinse bath of the present invention；
Fig. 2 is the side diagram of rinse bath of the present invention；
Fig. 3 is the structural schematic diagram of rotating cylinder of the present invention.
Wherein, it is marked in attached drawing as follows：
101- spray chambers, 102- rotating drums, 103- reclaiming chambers, 104- rotating cylinders, 105- revolving power mechanisms, 106- leakages
Hole, 107- inlets, 108- shower plates, 109- nozzles, 110- liquid outlets, 111- connecting shafts.
Specific implementation mode
Product, method and the application of the present invention has carried out face by preferred embodiment and has stated, the apparent energy of related personnel
Or else it is detached from the content of present invention, in spirit and scope to method described herein and application is modified or suitably changes and group
It closes, to realize and apply the present invention.
Raw material used in all technical solutions of the present invention can be bought from market, will not enumerate here, this hair
To the instrument and equipment in preparation method involved in bright all technical solutions, can directly be bought or can be from existing skill by commercially available
It is directly beyond all doubt in art to obtain, it is necessary to be noted that described in 1-5 of the embodiment of the present invention and comparative example 1-3
Rinse bath can not directly be bought or directly beyond all doubt from the prior art be obtained by commercially available.
Embodiment 1
A kind of high-performance stainless steel and seamless steel pipe is made of following chemical composition by mass percentage：C：0.01%, S：
0.02%, N：0.05%, Si：0.6%, Mn：1.5%, Cu：0.14%, Mo：0.2%, Ti：0.024%, Nb：0.02%, Ni：
0.03%, Co：0.03%, B：0.0006%, surplus is Fe and inevitable impurity element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of high-performance stainless steel and seamless steel pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Embodiment 2
A kind of high-performance stainless steel and seamless steel pipe is made of following chemical composition by mass percentage：C：0.01%, S：
0.015%, N：0.04%, Si：0.4%, Mn：1.5%, Cu：0.15%, Mo：0.2%, Ti：0.025%, Nb：0.015%,
Ni：0.03%, Co：0.02%, B：0.0008%, surplus is Fe and inevitable impurity element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of high-performance stainless steel and seamless steel pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Embodiment 3
A kind of high-performance stainless steel and seamless steel pipe is made of following chemical composition by mass percentage：C：0.02%, S：
0.02%, N：0.06%, Si：0.4%, Mn：1.7%, Cu：0.13%, Mo：0.21%, Ti：0.025%, Nb：0.02%,
Ni：0.034%, Co：0.028%, B：0.00066%, surplus is Fe and inevitable impurity element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of high-performance stainless steel and seamless steel pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Embodiment 4
A kind of high-performance stainless steel and seamless steel pipe is made of following chemical composition by mass percentage：C：0.018%, S：
0.016%, N：0.05%, Si：0.47%, Mn：1.57%, Cu：0.13%, Mo：0.21%, Ti：0.023%, Nb：
0.016%, Ni：0.033%, Co：0.028%, B：0.00065%, surplus is Fe and inevitable impurity element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of stainless-steel seamless pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Embodiment 5
A kind of high-performance stainless steel and seamless steel pipe is made of following chemical composition by mass percentage：C：0.018%, S：
0.02%, N：0.056%, Si：0.4%, Mn：1.68%, Cu：0.138%, Mo：0.214%, Ti：0.0242%, Nb：
0.018%, Ni：0.035%, Co：0.026%, B：0.00072%, surplus is Fe and inevitable impurity element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of high-performance stainless steel and seamless steel pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 1, the difference is that：The chemical composition of stainless-steel seamless pipe is adjusted
It is whole, i.e., do not consider that the adding proportion of N, Nb, C and S, the additive amount of other chemical compositions are constant in chemical composition；I.e. it is a kind of not
Become rusty steel seamless steel tube, is made of by mass percentage following chemical composition：C：0.015%, S：0.02%, N：0.04%, Si：
0.6%, Mn：1.5%, Cu：0.14%, Mo：0.2%, Ti：0.024%, Nb：0.02%, Ni：0.03%, Co：0.03%, B：
0.0006%, surplus is Fe and inevitable impurity element.
A kind of manufacturing method of stainless-steel seamless pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 1, the difference is that：The manufacturing method of stainless-steel seamless pipe is had adjusted,
Chemical composition composition remains unchanged, i.e., a kind of manufacturing method of stainless-steel seamless pipe includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to cold rolling in cold mill complex and obtains intermediate tube；Wherein, described cold
It rolls specially：900 DEG C of start rolling temperature, 700 DEG C of finishing temperature.
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by cooling process；Wherein, cooling process is specific
For：Intermediate tube is air-cooled to room temperature.
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, acid solution, aqueous and Na2CO3Solution successively according to spray sequence respectively from into
Liquid mouth 107 enters in spray chamber 101, and the setting of three equidistant inlets 107 allows fluid to comprehensive entering and sprays
It drenches in chamber 101, that is, when carrying out acid solution cleaning, three inlets 107 are simultaneously into acid solution, when being washed, three feed liquors
Mouth 107 is intake simultaneously, as progress Na2CO3When solution cleans, three inlets 107 are simultaneously into Na2CO3Solution, then liquid flow
On the shower plate 108 being arranged below by spray chamber 101, and further flow into the multiple nozzles 109 being arranged on shower plate 108
Interior, liquid is sprayed by nozzle 109, what needs to be explained here is that, nozzle 109 can be spraying head type, so that liquid sprays
The more uniform rotating drum 102 that extensively, the liquid of sprinkling passes through surface to be provided with multiple leakage holes 106 is spilt to be sprayed to liquid
Intermediate pipe surface in rotating cylinder 104, revolving power mechanism 105 drives rotating cylinder 104 to rotate by connecting shaft 111, while band
The rotation of dynamic intermediate tube so that the liquid of sprinkling can wash cycles to all surfaces of intermediate tube, revolving power mechanism 105 can
Can also be motor to be cylinder, as long as rotating cylinder 104 can be driven to rotate by connecting shaft 111, the liquid after cleaning
It is again flowed into funnelform reclaiming chamber 103 and is recycled by the leakage hole 106 on rotating drum 102, and from 110 row of liquid outlet
Go out, using the Combination Design of rotary cavity and spray, the pickling of stainless-steel seamless pipe in rotary cavity is washed away in realization,
So that cleaning solution in slot can comprehensively to steel tube surface carry out it is soft wash away, washed away or soak acid-cleaning is arranged by single
For dynamic rotary spray pickling, while improving the quality of pickling process, further shorten the time of pickling process.
Comparative example 3
Comparative example 3 is substantially the same manner as Example 1, the difference is that having adjusted in the manufacturing method of stainless-steel seamless pipe
Pickling process, chemical composition composition remain unchanged, i.e., a kind of manufacturing method of stainless-steel seamless pipe includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is subjected to pickling 2 hours in rinse bath by pickle；Wherein, sour
Washing lotion includes 12wt% nitric acid, and hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus is water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
What needs to be explained here is that as shown in Figs. 1-3, the rinse bath in step (5) pickling process wraps successively from top to bottom
Include spray chamber 101, rotating drum 102 and funnelform reclaiming chamber 103,101 top of spray chamber is placed equidistant with that there are three inlets
107,103 bottom of reclaiming chamber is provided with liquid outlet 110, and acid solution is entered from inlet 107 in spray chamber 101, equidistant three
The setting of inlet 107 allows fluid in comprehensive entrance spray chamber 101, that is, when carrying out acid solution cleaning, three
Inlet 107 on the shower plate 108 that then liquid flow is arranged below by spray chamber 101, and further flows simultaneously into acid solution
Entering in the multiple nozzles 109 being arranged on shower plate 108, liquid is sprayed by nozzle 109, what needs to be explained here is that, spray
Mouth 109 can be spraying head type so that liquid sprinkling more it is uniform extensively, the liquid of sprinkling is provided with multiple across surface
Liquid is sprayed to the intermediate pipe surface in rotating cylinder 104 by the rotating drum 102 of leakage hole 106, and revolving power mechanism 105 passes through connection
Axis 111 drives rotating cylinder 104 to rotate, while driving the rotation of intermediate tube so that the liquid of sprinkling can wash cycles to intermediate
The all surfaces of pipe, revolving power mechanism 105 can be cylinders, can also be motor, as long as can be driven by connecting shaft 111
Rotating cylinder 104 rotates, and the liquid after cleaning again flows into funnelform reclaiming chamber by the leakage hole 106 on rotating drum 102
It is recycled in 103, and is discharged from liquid outlet 110, using the Combination Design of rotary cavity and spray, realized to rotary chamber
The pickling of internal stainless-steel seamless pipe is washed away so that cleaning solution comprehensively can carry out soft rush in slot to steel tube surface
Brush is washed away or soak acid-cleaning is set as dynamic rotary spray pickling by single, while improving the quality of pickling process,
Further shorten the time of pickling process.
Comparative example 4
Comparative example 4 is substantially the same manner as Example 1, the difference is that the pickler of stainless-steel seamless pipe is had adjusted,
Chemical composition form and preparation method remains unchanged, i.e., a kind of stainless-steel seamless pipe, by mass percentage by it is following chemistry at
It is grouped as：C：0.01%, S：0.02%, N：0.05%, Si：0.6%, Mn：1.5%, Cu：0.14%, Mo：0.2%, Ti：
0.024%, Nb：0.02%, Ni：0.03%, Co：0.03%, B：0.0006%, surplus is Fe and inevitable impurity member
Element.
Wherein, the quality of the mass percentage content+S of the mass percentage content+C of mass percentage content=Nb of N
Degree.
A kind of manufacturing method of stainless-steel seamless pipe, includes the following steps：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, keeps the temperature 30min
After be moved at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, after pickling
Washing 30min is carried out, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；Wherein, pickle includes
12wt% nitric acid, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus are water.
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
Wherein, two sections of cold rollings in step (3) are specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
Wherein, the three-stage cooling process in step (4) is specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
Rinse bath in step (5) pickling process be in the prior art can directly beyond all doubt obtained rinse bath or
Person can directly be bought by commercially available.
The quantitative measurement parameter of stainless-steel seamless pipe made from embodiment 1-5 and comparative example 1-4 is now listed in table
1：Wherein, the thickness of steel pipe is 30mm, and test yield strength and tensile strength are carried out using GB/T228 standards, wear rate
Test condition is at room temperature, 1h to be tested under 0.5m/s relative rotation speeds, other mechanical performances are with reference to QJ/CTG24-2015.
Table 1 is that the major parameter of stainless-steel seamless pipe compares
From table 1 it follows that comparative example 1-4 various aspects of performance is nothing like and stainless steel jointless obtained by embodiment 1-5
The mechanical performance of steel pipe, technical scheme of the present invention have all carried out improve and perfect from material chemical component and technique, comparison
1-4 is compared with embodiment 1-5 for example, and whether either the change of manufacturing method or the change of device therefor are equal for the change on ingredient
The performance of stainless-steel seamless pipe can be had an impact so that the product of the product overall performance and embodiment 1-5 of comparative example 1-4
Overall performance, which is compared, to be declined.
The explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of high-performance stainless steel and seamless steel pipe, which is characterized in that be made of by mass percentage following chemical composition：C：
0.01-0.02%, S：0.015-0.02%, N：0.04-0.06%, Si：0.4-0.6%, Mn：1.5-1.8%, Cu：0.13-
0.15%, Mo：0.2-0.22%, Ti：0.023-0.025%, Nb：0.015-0.02%, Ni：0.03-0.04%, Co：0.02-
0.04%, B：0.0006-0.0008%, surplus are Fe and inevitable impurity element.
2. a kind of high-performance stainless steel and seamless steel pipe as described in claim 1, which is characterized in that by mass percentage by following
Chemical composition forms：C：0.01%, S：0.02%, N：0.05%, Si：0.6%, Mn：1.5%, Cu：0.14%, Mo：0.2%,
Ti：0.024%, Nb：0.02%, Ni：0.03%, Co：0.03%, B：0.0006%, surplus is Fe and inevitable impurity
Element.
3. a kind of high-performance stainless steel and seamless steel pipe as described in claim 1, which is characterized in that the mass percentage content of N
The mass percentage content of the mass percentage content+S of the mass percentage content+C of=Nb.
4. a kind of manufacturing method of high-performance stainless steel and seamless steel pipe as described in claim 1, which is characterized in that including following
Step：
(1) it smelts：It smelts and pipe is made；
(2) hot-puncturing process：Pipe obtained by step (1) is put into 1200 DEG C of heating furnace and heats 100min, is moved after keeping the temperature 30min
Move at punch into eleven punch 11, to obtain perforation pipe；
(3) cold rolling：Perforation pipe obtained by step (2) is subjected to two sections of cold rollings in cold mill complex and obtains intermediate tube；
(4) cooling：Intermediate tube obtained by step (3) is cooled to room temperature by three-stage cooling process；
(5) pickling：Intermediate tube obtained by step (4) is first passed through into pickle in rinse bath and carries out pickling 1 hour, is carried out after pickling
30min is washed, uses the Na of 2wt% after washing again2CO3Solution washs 5min, then washes 5min；
(6) it examines：Intermediate tube after cleaning obtained by step (5) is dried, then by being put in storage after nondestructiving inspecting test.
5. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 4, which is characterized in that the step (3)
In two sections of cold rollings be specially：
One 900 DEG C of stage start rolling temperature, finishing temperature are 800 DEG C；
800 DEG C of two-stage start rolling temperature, 700 DEG C of finishing temperature.
6. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 4, which is characterized in that the step (4)
In the three-stage cooling process be specially：
First segment cooling process：Intermediate tube is air-cooled to 600 DEG C；
Second segment cooling process：Again with the cooling rate of 4-8 DEG C/s by intermediate tube water cooling to 180-220 DEG C；
Third section cooling process：Intermediate tube is finally air-cooled to room temperature again.
7. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 4, which is characterized in that the pickle packet
12wt% nitric acid is included, hydrochloric acid 8wt%, hydrofluoric acid 12wt%, dodecyl sodium sulfate 0.1wt%, surplus is water.
8. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 4, which is characterized in that step (5) is described
Rinse bath includes spray chamber, rotating drum and reclaiming chamber successively from top to bottom；It is provided in the rotating drum and places the intermediate tube
Rotating cylinder, the rotating cylinder connect with revolving power mechanism, and multiple leakage holes are arranged in the rotating cylinder surface；
It is placed equidistant with above the spray chamber there are three inlet, the spray chamber lower section is provided with shower plate, the shower plate
On be provided with the nozzle that multiple liquid by the spray chamber are sprayed in rotating cylinder；
The reclaiming chamber bottom is provided with liquid outlet.
9. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 8, which is characterized in that the rotating cylinder is logical
Connecting shaft is crossed to connect with the revolving power mechanism.
10. the manufacturing method of high-performance stainless steel and seamless steel pipe as claimed in claim 8, which is characterized in that the reclaiming chamber
It is set as funnel-form.
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| CN109772907A (en) * | 2019-01-22 | 2019-05-21 | 江苏飞达环保科技有限公司 | A kind of uniform cooling means improving steel yield strength |
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Application publication date: 20180817 |