CN108226210A - A kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon - Google Patents
A kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon Download PDFInfo
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- CN108226210A CN108226210A CN201810036010.9A CN201810036010A CN108226210A CN 108226210 A CN108226210 A CN 108226210A CN 201810036010 A CN201810036010 A CN 201810036010A CN 108226210 A CN108226210 A CN 108226210A
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 64
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 29
- 238000004088 simulation Methods 0.000 title claims abstract description 28
- 238000002474 experimental method Methods 0.000 claims abstract description 52
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 30
- 239000010962 carbon steel Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000004458 analytical method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000008520 organization Effects 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 26
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
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- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
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- 239000000463 material Substances 0.000 abstract description 11
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- 238000005516 engineering process Methods 0.000 description 7
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- 210000003205 muscle Anatomy 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
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- 244000137852 Petrea volubilis Species 0.000 description 3
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon.The method of the present invention includes the following steps：Close nested combination after stainless-steel pipe is surface-treated with carbon steel rod；Thermocouple is welded in stainless steel tube outer surface；Bimetallic sample is placed between the collet in thermodynamic simulated experiment machine control box；Carry out high temperature compression and heat treatment experiment；Structure property analysis is carried out to the sample after experiment.The present invention, by changing thermal simulation experiment process program, completes the rolling mill practice simulation process of the compound Ribbed Bar of stainless steel/carbon using thermodynamic simulated experiment machine；And cooperation vacuum system, the problem of oxidation of bimetallic combination interface in experimentation is reduced, so as to ensure that the compound Ribbed Bar interfacial bonding property of stainless steel/carbon is good, organization and performance are met the requirements.The present invention has that preparation method is simple, of low cost, saves material, and repeatability is strong, and experiment purpose easily reaches, the advantages of comparatively fast more accurately finding related law.
Description
Technical field
The invention belongs to metal material technical study technology and thermal simulation technical field more particularly to it is a kind of prepare it is stainless
The heat simulation of the compound Ribbed Bar of steel/carbon steel.
Background technology
The construction of infrastructure and Important Project all be unable to do without a large amount of uses of reinforced concrete structure, and as coagulation
The performance of the reinforcing bar of soil skeleton is increasingly concerned with quality.Especially as the quickening of national Urbanization Construction paces and the "Oceanic" strategy
Proposition energetically, the demand of high strength anti-corrosion building bar will be increasing, and commonly used traditional reinforcing bar corrosion resistance
Difference, easy-to-rust expansion, causes the easy premature failure of reinforced concrete structure, can not meet the requirement of building life, so as to society
Cause huge economic loss.And in order to improve the solid stainless steel of steel bars corrosion problem research and development, because of noble metals such as chromium, nickel
It is a large amount of to use, production cost is caused to greatly increase, application range is significantly limited, therefore has both saved money there is an urgent need to research and develop one kind
Source reduces cost, and the reinforcing bar with good comprehensive performance.Then, the Research Thinking and technique of stainless steel/carbon composite reinforcing steel bar
It comes into being.
Stainless steel/carbon composite reinforcing steel bar is a kind of new material, uses stainless steel to cover material, and carbon steel is core material, the two warp
It crosses certain forming technology and obtains, this material combines the excellent corrosion resisting property of stainless steel and the good mechanicalness of carbon steel
Can, requirement of the people to capital construction installation security and service life can be met significantly.In addition, stainless steel/carbon composite reinforcing steel bar exists
Reduce the consumption of the noble metals such as chromium, nickel to a certain extent, production cost is greatly lowered, realize inexpensive and high performance
Perfect adaptation as a kind of product for the type that economizes on resources, will possess good social benefit and economic benefit.
The high performance key factor of stainless steel/carbon composite reinforcing steel bar is interface cohesion situation, this is also that restriction is stainless
An important factor for steel composite reinforcing steel bar industrialized production.Therefore, it is most important for the research of compound interface.At present to stainless steel double
The research of reinforcing bar is closed, is limited primarily to laboratory research.Correlation seminar of University On The Mountain Of Swallows is by using stainless steel tube inner sleeve carbon steel rod
It through drawing process, then will be rolled after the sealing of both ends, obtain compacting carbon steel bits in stainless steel composite muscle and stainless steel tube, then pass through
Heating rolling is crossed into stainless steel composite muscle, finally carries out structure property analysis, find generally all to be unevenly distributed there are coating and
The shortcomings that bond strength easily fluctuates by continuous adjusting process parameter, repeats hot rolling experiment, and then control structure property.
Not only preparation process is complicated, but also wastes experiment material for this method, is not easy to reach experiment purpose；University of Science ＆ Technology, Beijing is efficient
Rolling National Engineering Research Centre researcher is welded into pipe, inner sleeve carbon steel rod, after its both ends is welded using stainless steel band
Rolling, the shortcomings that obtaining stainless steel composite muscle, then carry out structure property analysis, easily fluctuated there is also above-mentioned interface performance；Its
The performance that also all generally existing coating thickness is unevenly distributed and combination interface intensity is not high in his stainless steel composite muscle report lacks
Fall into the objective deficiency with preparation process complexity.As it can be seen that there are some problems for composite reinforcing steel bar research, rolling mill practice is still in theory
Stage lacks a kind of easy, low cost experimental study means, leads to the new material still without more mature industrial production
Technique.
Invention content
According to set forth above for stainless steel composite muscle preparation process is complicated, the period is long, the technical problems such as of high cost,
And provide a kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon.It is of the invention mainly to be rolled using Northeastern University
Technology and the MMS series of heat simulated experiment machine (patent names of tandem rolling automation National Key Laboratory independent research：Multi-functional heat
Power simulated experiment machine, the patent No.：ZL 201110100302.2), by the special-carrier for being specially threaded reinforcing rib slot,
High temperature deformation and heat treatment are carried out to the bimetallic composite blank of different specification size, simulate stainless steel/carbon composite band rib steel
The deformation process of muscle, and by the way that sample tissue performance evaluation after experimental data and experiment, hot-working is carried out according to experiment purpose
Process optimization is adjusted with specimen size, so that it is determined that most suitable process program.
The technological means that the present invention uses is as follows：
A kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon, which is characterized in that include the following steps：
S1, raw material prepare：Prepare the stainless-steel pipe and carbon steel rod of pre-set dimension；Raw material described above be it is common not
Steel material of becoming rusty or carbon steel material, needing not move through special working process can obtain；
S2, feedstock processing and assembly：Selected stainless steel inside pipe wall and carbon steel rod outer surface are subjected to cleaning treatment, ensured
It is to be combined to show out clean metal, after drying process, it is compound that carbon steel rod is closely nested in formation bimetallic in stainless-steel pipe
Blank；
S3, thermocouple setting：Thermocouple is welded in stainless-steel pipe outer surface center；Preferably, a pair of of heat of welding
Galvanic couple is for experiment；
S4, clamping sample：The bimetallic composite blank clamping of thermocouple will be welded in thermodynamic simulated experiment machine control box
Arranged on left and right sides fixture collet on, it is to be detected；
S5, single pass compression experiment is carried out：Thermodynamic simulated experiment machine control box is vacuumized after dress sample, fills guarantor
Protect gas, such as nitrogen, argon gas；Bimetallic composite blank is made to be maintained in certain vacuum state, carries out high temperature compression later
And heat treatment experiment；
S6, structure property analysis：Composite reinforcing steel bar sample after experiment is circumferentially subjected to wire cutting sampling with axial, through pre-
After processing, metallographic, hardness, Scanning Detction are carried out, the final experimental data for obtaining required organization and performance is analyzed.In order to
It realizes the purpose of the good metallurgical binding of compound interface, ensures the preferable comprehensive mechanical property of composite reinforcing steel bar, need to continue to optimize
Size of sample and heat processing technique route, finally successfully prepare stainless steel compound belt rib reinforcement.
Further, it is ultrasonic cleaning, mechanical grinding and pickling to the surface treatment mode of raw material in the step S2
Rusty stain, greasy dirt and the high-pressure wash on processing removal surface and drying process.
Further, in the step S4, the collet is equipped with the rib slot of simulation spiral deformation, the rib groove depth
Degree is required according to the deflection of bimetallic composite blank and is changed.
Further, each technological parameter can be according to specific reality in the step S5 high temperatures compressive deformation and heat treatment experiment
It tests purpose to adjust, and can related data be obtained by data collecting system and be analyzed.
The invention also discloses the compound Ribbed Bars of stainless steel/carbon prepared by above-mentioned heat simulation.
Compared with the prior art, in order to determine appropriate heat processing technique system and technological parameter, the application uses MMS systems
Row thermodynamic simulated experiment machine has the function of comprehensive thermo dynamic analogy, the ginsengs such as energy analog temperature, displacement, power, speed, ess-strain
Number and passes through experimental machine number, it can be achieved that the multiple functions such as stretching experiment, single multi- passage compression experiment, Plane Strain Compression experiment
Temperature-time curve, displacement-time curve, load-deformation curve for being obtained according to acquisition system etc. are analyzed, while to reality
It tests sample and carries out organization and performance detection and analysis；And related experiment is concentrated in an equipment and is completed, it is flexibly convenient；It is universal
For the research of the Thermal-mechanical Coupling deformational behavior of metal material.And thermomechanical treatment is carried out to stainless steel/carbon composite blank
Mode conforms exactly to the single pass compression experiment technique of thermodynamic simulated experiment machine, i.e., by being threaded the special of reinforcing rib slot
Collet can realize the deformation and heat treatment of bimetallic blank using single pass compression process route, eventually by optimization hot-working
Technological parameter prepares the compound Ribbed Bar of stainless steel/carbon.
For being tested compared to hot rolling, the heat simulation of the compound Ribbed Bar rolling of stainless steel/carbon can solve
The problems such as link is more, the period is long, control is unstable, experimental repeatability is poor are prepared present in hot rolling experiment, can be stainless steel/carbon
The compound Ribbed Bar hot rolling technology of steel provides a kind of easily research means, has feasibility.
The present invention has the following advantages：
1st, using MMS series hot modeling test machines, and be aided with its vacuum system can utmostly reduce in experimentation it is double
The problem of oxidation of metal combination interface, so as to ensure that the compound Ribbed Bar tissue of stainless steel/carbon prepared and performance satisfaction will
It asks.
2nd, by designing special-carrier, the compound Ribbed Bar of stainless steel/carbon can be successfully completed (including cross rib and longitudinal rib)
Heat simulating.
3rd, the collet of special designing is machined with the rib slot of simulation spiral deformation, and the form and pattern of rib slot can be according to realities
Purpose flexible design is tested, rib groove depth can be required according to the compound deflection of bimetallic and be changed.
4th, by the organization and performance of the analysis to acquisition system data and experimental sample detect, can for hot-rolled stainless steel/
The compound Ribbed Bar of carbon steel provides a large amount of comparative study data, is the industry of the compound Ribbed Bar rolling mill practice of stainless steel/carbon
Using offer theoretical foundation and easily research means.
5th, relative to actual production and other simulated experiments, thermal simulation test sample size is smaller, and deformation is relatively uniform, leads to
It crosses and the parameters such as temperature, deformation is carried out with accurate simulation control, can guarantee the accuracy of result of study.
6th, material preparation is simple in entire experiment flow, and operating procedure is convenient, of low cost, saves material, experimental period
Shorter, repeatability is stronger, can comparatively fast calibrate and find related law.
For the foregoing reasons, the present invention can the compound Ribbed Bar laboratory hot rolling experimental study of stainless steel/carbon it
It is promoted outside, theoretical direction is provided for stainless steel/carbon composite reinforcing steel bar industrialized production.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the collet (simulation Ribbed Bar longitudinal rib) that the present invention processes.
Fig. 2 is the collet (simulation Ribbed Bar cross rib) that the present invention processes.
Fig. 3 is blank (stainless steel tube and carbon steel rod) combination diagram of the present invention.
The blank (stainless steel tube and carbon steel rod) that Fig. 4 is the present invention is welded with thermocouple sample schematic diagram.
Fig. 5 is the Ribbed Bar photo after the completion of thermal simulation experiment of the present invention-single pass compression experiment.
Fig. 6 is thermal simulation experiment finished product Ribbed Bar axial and circumferential metallograph of the present invention.
In figure：1st, longitudinal rib groove；2nd, cross rib groove；3rd, stainless-steel pipe；4th, carbon steel rod；5th, thermocouple thermo wires；6th, it is welded with
The sample of thermocouple thermo wires；7th, Ribbed Bar sample.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work shall fall within the protection scope of the present invention.
As shown in figs 1 to 6, a kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon, including walking as follows
Suddenly：
S1, raw material prepare：Prepare the stainless-steel pipe 3 of pre-set dimension and carbon steel rod 4；
S2, feedstock processing and assembly：By selected 3 inner wall of stainless-steel pipe and carbon steel rod 4 since size is smaller, first alcohol
Ultrasonic cleaning for some period after submergence, polished after drying with the sand paper inner wall of stainless-steel pipe 3 and the outer surface of carbon steel rod 4,
It is wiped with acetone again to carry out cleaning treatment, guarantee is to be combined to show out clean metal, after drying process that carbon steel rod 4 is close embedding
It is sleeved in stainless-steel pipe 3 and forms bimetallic composite blank.
S3, thermocouple setting：It is welded in the 3 outer surface center of stainless-steel pipe for being nested with carbon steel rod 4 using thermocouple
It picks, a pair of of thermocouple thermo wires 5 is firmly welded on specimen surface by way of percussion welding.During welding, it is desirable that thermocouple is even
Silk 5 roots and the perpendicular shape of specimen surface, spacing is appropriate between thermocouple thermo wires 5.
S4, clamping sample：To be welded with a left side of 6 clamping of sample of thermocouple thermo wires in thermodynamic simulated experiment machine control box,
It is to be detected on the collet of right both sides fixture；The collet be equipped with simulation spiral deformation rib slot (i.e. longitudinal rib groove 1 or/
With cross rib groove 2), the rib groove depth is required according to the deflection of bimetallic composite blank and is changed.Thermoelectricity will be then welded with
A pair of of thermocouple thermo wires 5 on the sample 6 of thermo wires is connected respectively on the anode and cathode of control box internal wiring terminal.
S5, single pass compression experiment is carried out：Thermodynamic simulated experiment machine control box is vacuumized and filled after dress sample
Gas is protected, sample is made to be maintained in certain vacuum state, carries out single pass compression experiment according to heat processing technique route later.Examination
After sample 6 is kept the temperature more than austenitizing temperature, thermodynamic simulated experiment machine main hydraulic cylinder tup is pressed under position control mode
According to given deflection and strain rate to sample carry out compressive deformation, practical distortion amount can by measure two collets between away from
It is compared to obtain from initial distance.Ribbed Bar sample 7 after compression can pass through tune according to given cooling technique
Current size changes various ways guarantee cooling procedure and temperature change and the coolings such as cooling medium (water, air and heat conduction etc.)
Technique initialization curve is consistent.
S6, structure property analysis：The compressed Ribbed Bar sample 7 of single pass is circumferentially taken with axial progress wire cutting
Sample is polished by sand paper, is processed by shot blasting after fine grinding polishing, is treated surface no marking, after clean and bright, carried out at corrosion
Reason finally carries out the analysis of structure property according to experiment purpose.
Embodiment
The present embodiment is core material to cover material, 20MnSi carbon steel rods 4 with seamless 304 austenitic stainless steel steel pipe 3, and size is distinguished
For(outer diameter × wall thickness × length, mm) and(outer diameter × length, mm),
Therebetween it combines closely, single pass compression experiment is carried out on MMS-300 thermodynamic simulated experiment machines with this blank, deflection is
75%.
Ultrasonic wave is carried out after above-mentioned seamless 304 austenitic stainless steel steel pipe 3 and 20MnSi carbon steel rods 4 are submerged with alcohol
Cleaning 30 minutes, with the outer surface of inner wall and the carbon steel rod 4 of sand paper polishing stainless-steel pipe 3 after drying, then with acetone wipe with
Cleaning treatment is carried out, guarantee is to be combined to show out clean metal, and carbon steel rod 4 is closely nested in stainless-steel pipe after drying process
In 3；
Then a certain position utilizes thermocouple welding machine in the middle part of 3 sample of stainless-steel pipe for being cased with carbon steel rod 4, passes through punching
A pair of of thermocouple thermo wires 5 is firmly welded on specimen surface by the mode for hitting weldering；
Then the one of reinforcing rib slot (longitudinal rib groove 1 or/and cross rib groove 2, rib groove depth are 0.8mm) will be threaded
Collet is separately fixed on the arranged on left and right sides fixture in thermodynamic simulated experiment machine control box；Thermocouple thermo wires will be welded with again
Sample 6 is fixed in thermodynamic simulated experiment machine control box between a pair of collet on fixture, then by a pair of heat on sample
Galvanic couple thermo wires 5 is connected respectively on the anode and cathode of control box internal wiring terminal；
Thermodynamic simulated experiment machine control box is vacuumized after dress sample and fills protection gas, sample is made to be maintained at certain
In vacuum state, single pass compression experiment is carried out according to heat processing technique route later：Sample is with the speed of 10 DEG C/s from room temperature
1200 DEG C are heated to, then keeps the temperature 5min, then 1050 DEG C are cooled to the cooling rate of 10 DEG C/s, progress deflection is after keeping the temperature 30s
75% single pass compression experiment, carries out air-cooled processing later, finally obtains the compound Ribbed Bar sample 7 of stainless steel/carbon；
Ribbed Bar sample 7 after experiment is circumferentially subjected to wire cutting sampling with axial, is polished by coarse sandpaper, fine sand
Be processed by shot blasting after paper polishing, treat surface no marking, after clean and bright, then with 4% nital to core carbon steel
Corrosion treatment is carried out, finally carries out Metallographic Analysis, electron probing analysis and hardness measurement.
As shown in Figure 5, Figure 6, by being obtained to the analysis of experimental phenomena and conclusion, above-mentioned heat simulation is prepared stainless
The combination interface of the compound Ribbed Bar of steel/carbon steel realizes good metallurgical binding, and organization and performance meet certain requirement,
Theoretical direction is provided for hot rolling experiment.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of heat simulation for preparing the compound Ribbed Bar of stainless steel/carbon, which is characterized in that include the following steps：
S1, raw material prepare：Prepare the stainless-steel pipe and carbon steel rod of pre-set dimension；
S2, feedstock processing and assembly：Will be dry after selected stainless steel inside pipe wall and carbon steel rod outer surface progress cleaning treatment, it will
Carbon steel rod, which is closely nested in stainless-steel pipe, forms bimetallic composite blank；
S3, thermocouple setting：Thermocouple is welded in stainless-steel pipe outer surface center；
S4, clamping sample：To be welded with a left side of the bimetallic composite blank clamping of thermocouple in thermodynamic simulated experiment machine control box,
It is to be detected on the collet of right both sides fixture；
S5, single pass compression experiment is carried out：Thermodynamic simulated experiment machine control box is vacuumized after dress sample, fills protection
Gas makes bimetallic composite blank be maintained in certain vacuum state, carries out high temperature compression and heat treatment experiment later；
S6, structure property analysis：It is preprocessed by the composite reinforcing steel bar sample after experiment circumferentially with axial progress wire cutting sampling
Afterwards, metallographic, hardness, Scanning Detction are carried out, the final experimental data for obtaining required organization and performance is analyzed.
2. the heat simulation according to claim 1 for preparing the compound Ribbed Bar of stainless steel/carbon, which is characterized in that
It is the rust that ultrasonic cleaning, mechanical grinding and pickling processes remove surface to the surface treatment mode of raw material in the step S2
Mark, greasy dirt and high-pressure wash and drying process.
3. the heat simulation according to claim 1 for preparing the compound Ribbed Bar of stainless steel/carbon, which is characterized in that
In the step S4, the collet is equipped with the rib slot of simulation spiral deformation, and the rib groove depth is compound according to bimetallic
The deflection of blank is required and is changed.
4. the heat simulation according to claim 1 for preparing the compound Ribbed Bar of stainless steel/carbon, which is characterized in that
Each technological parameter can be adjusted according to specific experiment purpose in the step S5 high temperatures compressive deformation and heat treatment experiment, and
Related data can be obtained by data collecting system to be analyzed.
5. stainless steel/carbon prepared by a kind of heat simulation as described in the arbitrary claim of Claims 1-4 is compound with ribbing
Reinforcing bar.
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