CN106468056A - A kind of construction of road and bridge with corrosion-resistant circle pile tube - Google Patents

A kind of construction of road and bridge with corrosion-resistant circle pile tube Download PDF

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CN106468056A
CN106468056A CN201610446796.2A CN201610446796A CN106468056A CN 106468056 A CN106468056 A CN 106468056A CN 201610446796 A CN201610446796 A CN 201610446796A CN 106468056 A CN106468056 A CN 106468056A
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afterwards
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steel pipe
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喻良军
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • 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
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • C22C33/06—Making ferrous alloys by melting using master 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/007—Ferrous alloys, e.g. steel alloys containing silver
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
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  • General Engineering & Computer Science (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

A kind of corrosion-resistant circle pile tube, use the organic coating layer of organic coating coating including a round steel pipe and described round steel pipe outer wall, steel pipe inner wall is welded with cross-rib beam, muscle beam is to be welded by two reinforcing bars, it is filled with concrete, concrete material of the present invention is reached from multiple batch mixings composition comprcssive strength inside steel pipe：7d：33MPa；28d：50MPa, cross rib manufacturing process is simply applied to commercial production.Organic coating ensures the outside decay resistance of steel pipe.

Description

A kind of construction of road and bridge with corrosion-resistant circle pile tube
Technical field
The present invention relates to a kind of corrosion-resistant circle pile tube, belongs to construction of road and bridge technical field.
Background technology
Pile tube as a kind of ground and pile foundation form from having grown a lot till now at the beginning of last century, in various buildings Widely use in basis, and play a great role, China produces concrete tubular pile and all reaches from properties of product and quantity World prostatitis level, presents layout extensively, and product category is complete in specifications, in order to more rationally apply pile tube technology, effectively widely Promote the use of pile tube, be extremely necessary to pile tube research.
Content of the invention
A kind of corrosion-resistant circle pile tube, uses organic coating coating including a round steel pipe and described round steel pipe outer wall Organic coating layer, steel pipe inner wall is welded with cross-rib beam, and muscle beam is to be welded by two reinforcing bars, is filled with mixed inside steel pipe Solidifying soil,
The manufacture method of cross-rib beam：Dispensing is carried out according to following chemical composition：C 0.052wt%, Si 5.2wt%, Zr 2.3wt%, Mo 0.51wt%, In 0.11wt%, Ta 0.12wt%, remaining is Fe and inevitable impurity, carries out melting After be cast into steel billet, afterwards by heating steel billet to 1110 DEG C, breaking down 120 seconds under the rolling condition for 1.2m/s for the speed, afterwards Roll 85 seconds in first time under the rolling condition for 2.5m/s for the speed, after rolling in first time, blank is heated, heating-up temperature 620 DEG C be incubated 4 hours, be air cooled to room temperature, afterwards by blank heating to 1120 DEG C, speed be 3.5 m/s rolling condition under Roll 70 seconds in second, after rolling in second, blank heated, 600 DEG C of heating-up temperature is incubated 2 hours, is air cooled to room temperature, Afterwards by blank heating to 1100 DEG C, finish to gauge 45 seconds under the rolling condition for 4.5m/s for the speed；Subsequently in quenching unit Quenched with water, be cooled to 430 DEG C, be tempered subsequently into being heated to 590 DEG C in tempering heating furnace, then first adopted water Reinforcing bar water-cooled to 400 DEG C, is then incubated 60 seconds by the cold cooldown rate with 15 DEG C/s, then adopts water-cooled with the cooling speed of 25 DEG C/s Reinforcing bar water-cooled to 240 DEG C, is finally air cooled to room temperature by rate；The reinforcing bar obtaining is cut according to dimensional requirement, is welded into afterwards It is cross,
Round steel pipe chemical element consists of（Percentage by weight）：C:0.23, Mg：4.3, Mo：2.4,：Cr 2.2, Mn：0.71, Sn：0.62, Bi：0.52, Nb：0.31, Ag：0.13, Ti：0.074, V：0.054, Sb： 0.033, Zn：0.024, Pd：0.023, balance of Fe and inevitable impurity；
The preparation method of round steel pipe：Comprise the following steps：According to the elementary composition dispensing of above-mentioned round steel pipe, first pure iron is added To in smelting furnace, Control for Kiln Temperature at 1450 DEG C, after pure iron fusing after, furnace temperature drop to 1440 DEG C addition magnesium ferrum intermediate alloys, after will Furnace temperature is reduced to 1430 DEG C of addition molybdenum-iron intermediate alloys；Afterwards furnace temperature is reduced to 1420 DEG C of addition ferrochrome intermediate alloys；Afterwards by stove Temperature is reduced to 1410 DEG C and adds other alloying elements, and rear furnace temperature is increased to 1430 DEG C, adds refine cleanser, and refine cleanser adds Enter amount for the 0.6% of furnace charge amount, stir 10 minutes, stand 20 minutes, treat that slag is separated with molten metal, skim, add coverture afterwards, Standing is skimmed after 30 minutes again, is poured into a mould afterwards；Pouring temperature is 1400 DEG C；The ingot casting obtaining carries out heat treatment：First Ingot casting is carried out being heated to 800 DEG C, 80 DEG C/h of heating rate, it is incubated 3 hours, carries out Quenching Treatment afterwards, quenching is situated between Matter be water, after quenching, ingot casting is heated to 600 DEG C from room temperature, 60 DEG C/h of heating rate, be incubated 5 hours, after be cooled to 400 DEG C, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, after be cooled to 300 DEG C again, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, After be air cooled to room temperature,
The ingot casting of gained is heated to 1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion original pipe is obtained,
The original pipe of gained carries out multistage annealing, is first warming up to 780 DEG C, 100 DEG C/h of heating rate, and insulation 4 is little When, after be cooled to 580 DEG C, 80 DEG C/h of rate of temperature fall, be incubated 2 hours, after be cooled to 430 DEG C again, be incubated 4 hours, empty afterwards It is cooled to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome,
Pipe idiosome is obtained round steel pipe by four drawings, the drawing temperature of first time drawing is 870 DEG C, and drawing speed is 7 mm/second；The drawing temperature of second drawing is 840 DEG C, and drawing speed is 9 mm/second；The drawing temperature of third time drawing For 820 DEG C, drawing speed is 11 mm/second；The drawing temperature of the 4th drawing is 800 DEG C, and drawing speed is 13 mm/second, Obtain final round steel pipe,
Described preparation method of concrete is：Weigh raw material：400 parts of cement, 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, precious 5 parts of pearl rock, 3 parts of galena powder, 620 parts of sand, 1200 parts of stone, 275 parts of water, 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, 4 parts of fatty alcohol-polyoxyethylene ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；
By 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, 5 parts of perlite, calcine after the 3 parts of mixing of galena powder, calcined Journey：First it is heated to 500 DEG C, calcines 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, be warming up to 750 DEG C again, calcining 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in flour mill, rotating speed is 100r/min, grinding 3 hours, Grinding compound particles granularity size is 0.52mm,
Cement, grinding mixture and 125ml water are put into concrete mixer stir 5 minutes, add sand, stone and residue Water continue stirring 4 minutes, afterwards by 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, fatty alcohol polyoxy 4 parts of vinyl Ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；Add, after stirring, obtain concrete；
Organic coating is by 83 parts of acrylic emulsion, 20 parts of silica sand, 4 parts of tripolycyanamide, 1 part of ethylene glycol, 3 parts of methane-siliconic acid, film forming 4 parts of auxiliary agent, 2 parts of sodium lauryl sulphate, 1 part of composition of polyacrylamide.
Concrete is filled in round steel pipe by pouring type.
Foregoing invention content having the beneficial effects that with respect to prior art：1）Cross-rib beam of the present invention effectively enhances pre- The intensity of product and make product structure functional, 2）The round steel pipe of present invention circle pile tube periphery can more preferably ensure Product holding capacity；3）The external intensity that ferrous alloy material fully meets product of the present invention requires, and concrete can also be suppressed swollen Swollen, 4）Concrete material of the present invention is reached from multiple batch mixings composition comprcssive strength：7d：33MPa ；28d：50MPa,；5）Ten Word rib manufacturing process is simply applied to commercial production.6）Organic coating ensures the outside decay resistance of steel pipe.
Brief description
Fig. 1 is circular pile tube overall schematic；
Fig. 2 is circular pile tube schematic cross-section.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and effect, now describe the present invention's in detail Specific embodiment.
A kind of corrosion-resistant circle pile tube 5, makes including a round steel pipe 1 and described round steel pipe outer wall as depicted in figs. 1 and 2 The organic coating layer 4 being coated with organic coating, steel pipe inner wall is welded with cross-rib beam 3, and muscle beam is to be welded by two reinforcing bars, It is filled with concrete 2 inside steel pipe.
Cross-rib beam is crosswise by the welding of ferrous alloy bar, is integrally welded to formation cross-rib on steel pipe inner wall Beam, can be arranged in parallel multigroup cross-rib beam along steel pipe body direction, be separated by 12cm between every group of cross-rib beam.
Concrete is filled in round steel pipe by pouring type.
Embodiment 1
A kind of corrosion-resistant circle pile tube, uses the organic of organic coating coating including a round steel pipe and described round steel pipe outer wall Dope layer, steel pipe inner wall is welded with cross-rib beam, and muscle beam is to be welded by two reinforcing bars, is filled with coagulation inside steel pipe Soil,
The manufacture method of cross-rib beam：Dispensing is carried out according to following chemical composition：C 0.052wt%, Si 5.2wt%, Zr 2.3wt%, Mo 0.51wt%, In 0.11wt%, Ta 0.12wt%, remaining is Fe and inevitable impurity, carries out melting After be cast into steel billet, afterwards by heating steel billet to 1110 DEG C, breaking down 120 seconds under the rolling condition for 1.2m/s for the speed, afterwards Roll 85 seconds in first time under the rolling condition for 2.5m/s for the speed, after rolling in first time, blank is heated, heating-up temperature 620 DEG C be incubated 4 hours, be air cooled to room temperature, afterwards by blank heating to 1120 DEG C, speed be 3.5 m/s rolling condition under Roll 70 seconds in second, after rolling in second, blank heated, 600 DEG C of heating-up temperature is incubated 2 hours, is air cooled to room temperature, Afterwards by blank heating to 1100 DEG C, finish to gauge 45 seconds under the rolling condition for 4.5m/s for the speed；Subsequently in quenching unit Quenched with water, be cooled to 430 DEG C, be tempered subsequently into being heated to 590 DEG C in tempering heating furnace, then first adopted water Reinforcing bar water-cooled to 400 DEG C, is then incubated 60 seconds by the cold cooldown rate with 15 DEG C/s, then adopts water-cooled with the cooling speed of 25 DEG C/s Reinforcing bar water-cooled to 240 DEG C, is finally air cooled to room temperature by rate；The reinforcing bar obtaining is cut according to dimensional requirement, is welded into afterwards It is cross,
Round steel pipe chemical element consists of（Percentage by weight）：C:0.23, Mg：4.3, Mo：2.4,：Cr 2.2, Mn：0.71, Sn：0.62, Bi：0.52, Nb：0.31, Ag：0.13, Ti：0.074, V：0.054, Sb： 0.033, Zn：0.024, Pd：0.023, balance of Fe and inevitable impurity；
The preparation method of round steel pipe：Comprise the following steps：According to the elementary composition dispensing of above-mentioned round steel pipe, first pure iron is added To in smelting furnace, Control for Kiln Temperature at 1450 DEG C, after pure iron fusing after, furnace temperature drop to 1440 DEG C addition magnesium ferrum intermediate alloys, after will Furnace temperature is reduced to 1430 DEG C of addition molybdenum-iron intermediate alloys；Afterwards furnace temperature is reduced to 1420 DEG C of addition ferrochrome intermediate alloys；Afterwards by stove Temperature is reduced to 1410 DEG C and adds other alloying elements, and rear furnace temperature is increased to 1430 DEG C, adds refine cleanser, and refine cleanser adds Enter amount for the 0.6% of furnace charge amount, stir 10 minutes, stand 20 minutes, treat that slag is separated with molten metal, skim, add coverture afterwards, Standing is skimmed after 30 minutes again, is poured into a mould afterwards；Pouring temperature is 1400 DEG C；The ingot casting obtaining carries out heat treatment：First Ingot casting is carried out being heated to 800 DEG C, 80 DEG C/h of heating rate, it is incubated 3 hours, carries out Quenching Treatment afterwards, quenching is situated between Matter be water, after quenching, ingot casting is heated to 600 DEG C from room temperature, 60 DEG C/h of heating rate, be incubated 5 hours, after be cooled to 400 DEG C, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, after be cooled to 300 DEG C again, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, After be air cooled to room temperature,
The ingot casting of gained is heated to 1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion original pipe is obtained,
The original pipe of gained carries out multistage annealing, is first warming up to 780 DEG C, 100 DEG C/h of heating rate, and insulation 4 is little When, after be cooled to 580 DEG C, 80 DEG C/h of rate of temperature fall, be incubated 2 hours, after be cooled to 430 DEG C again, be incubated 4 hours, empty afterwards It is cooled to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome,
Pipe idiosome is obtained round steel pipe by four drawings, the drawing temperature of first time drawing is 870 DEG C, and drawing speed is 7 mm/second；The drawing temperature of second drawing is 840 DEG C, and drawing speed is 9 mm/second；The drawing temperature of third time drawing For 820 DEG C, drawing speed is 11 mm/second；The drawing temperature of the 4th drawing is 800 DEG C, and drawing speed is 13 mm/second, Obtain final round steel pipe,
Described preparation method of concrete is：Weigh raw material：400 parts of cement, 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, precious 5 parts of pearl rock, 3 parts of galena powder, 620 parts of sand, 1200 parts of stone, 275 parts of water, 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, 4 parts of fatty alcohol-polyoxyethylene ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；
By 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, 5 parts of perlite, calcine after the 3 parts of mixing of galena powder, calcined Journey：First it is heated to 500 DEG C, calcines 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, be warming up to 750 DEG C again, calcining 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in flour mill, rotating speed is 100r/min, grinding 3 hours, Grinding compound particles granularity size is 0.52mm,
Cement, grinding mixture and 125ml water are put into concrete mixer stir 5 minutes, add sand, stone and residue Water continue stirring 4 minutes, afterwards by 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, fatty alcohol polyoxy 4 parts of vinyl Ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；Add, after stirring, obtain concrete；
Organic coating is by 83 parts of acrylic emulsion, 20 parts of silica sand, 4 parts of tripolycyanamide, 1 part of ethylene glycol, 3 parts of methane-siliconic acid, film forming 4 parts of auxiliary agent, 2 parts of sodium lauryl sulphate, 1 part of composition of polyacrylamide.

Claims (2)

1. a kind of corrosion-resistant circle pile tube, including a round steel pipe and described round steel pipe outer wall using having that organic coating coats Machine dope layer, steel pipe inner wall is welded with cross-rib beam, and muscle beam is to be welded by two reinforcing bars, is filled with coagulation inside steel pipe Soil,
The manufacture method of cross-rib beam：Dispensing is carried out according to following chemical composition：C 0.052wt%, Si 5.2wt%, Zr 2.3wt%, Mo 0.51wt%, In 0.11wt%, Ta 0.12wt%, remaining is Fe and inevitable impurity, carries out melting After be cast into steel billet, afterwards by heating steel billet to 1110 DEG C, breaking down 120 seconds under the rolling condition for 1.2m/s for the speed, afterwards Roll 85 seconds in first time under the rolling condition for 2.5m/s for the speed, after rolling in first time, blank is heated, heating-up temperature 620 DEG C be incubated 4 hours, be air cooled to room temperature, afterwards by blank heating to 1120 DEG C, speed be 3.5 m/s rolling condition under Roll 70 seconds in second, after rolling in second, blank heated, 600 DEG C of heating-up temperature is incubated 2 hours, is air cooled to room temperature, Afterwards by blank heating to 1100 DEG C, finish to gauge 45 seconds under the rolling condition for 4.5m/s for the speed；Subsequently in quenching unit Quenched with water, be cooled to 430 DEG C, be tempered subsequently into being heated to 590 DEG C in tempering heating furnace, then first adopted water Reinforcing bar water-cooled to 400 DEG C, is then incubated 60 seconds by the cold cooldown rate with 15 DEG C/s, then adopts water-cooled with the cooling speed of 25 DEG C/s Reinforcing bar water-cooled to 240 DEG C, is finally air cooled to room temperature by rate；The reinforcing bar obtaining is cut according to dimensional requirement, is welded into afterwards It is cross,
Round steel pipe chemical element consists of（Percentage by weight）：C:0.23, Mg：4.3, Mo：2.4,：Cr 2.2, Mn：0.71, Sn：0.62, Bi：0.52, Nb：0.31, Ag：0.13, Ti：0.074, V：0.054, Sb： 0.033, Zn：0.024, Pd：0.023, balance of Fe and inevitable impurity；
The preparation method of round steel pipe：Comprise the following steps：According to the elementary composition dispensing of above-mentioned round steel pipe, first pure iron is added To in smelting furnace, Control for Kiln Temperature at 1450 DEG C, after pure iron fusing after, furnace temperature drop to 1440 DEG C addition magnesium ferrum intermediate alloys, after will Furnace temperature is reduced to 1430 DEG C of addition molybdenum-iron intermediate alloys；Afterwards furnace temperature is reduced to 1420 DEG C of addition ferrochrome intermediate alloys；Afterwards by stove Temperature is reduced to 1410 DEG C and adds other alloying elements, and rear furnace temperature is increased to 1430 DEG C, adds refine cleanser, and refine cleanser adds Enter amount for the 0.6% of furnace charge amount, stir 10 minutes, stand 20 minutes, treat that slag is separated with molten metal, skim, add coverture afterwards, Standing is skimmed after 30 minutes again, is poured into a mould afterwards；Pouring temperature is 1400 DEG C；The ingot casting obtaining carries out heat treatment：First Ingot casting is carried out being heated to 800 DEG C, 80 DEG C/h of heating rate, it is incubated 3 hours, carries out Quenching Treatment afterwards, quenching is situated between Matter be water, after quenching, ingot casting is heated to 600 DEG C from room temperature, 60 DEG C/h of heating rate, be incubated 5 hours, after be cooled to 400 DEG C, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, after be cooled to 300 DEG C again, 50 DEG C/h of rate of temperature fall, be incubated 3 hours, After be air cooled to room temperature,
The ingot casting of gained is heated to 1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion original pipe is obtained,
The original pipe of gained carries out multistage annealing, is first warming up to 780 DEG C, 100 DEG C/h of heating rate, and insulation 4 is little When, after be cooled to 580 DEG C, 80 DEG C/h of rate of temperature fall, be incubated 2 hours, after be cooled to 430 DEG C again, be incubated 4 hours, empty afterwards It is cooled to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome,
Pipe idiosome is obtained round steel pipe by four drawings, the drawing temperature of first time drawing is 870 DEG C, and drawing speed is 7 mm/second；The drawing temperature of second drawing is 840 DEG C, and drawing speed is 9 mm/second；The drawing temperature of third time drawing For 820 DEG C, drawing speed is 11 mm/second；The drawing temperature of the 4th drawing is 800 DEG C, and drawing speed is 13 mm/second, Obtain final round steel pipe,
Described preparation method of concrete is：Weigh raw material：400 parts of cement, 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, precious 5 parts of pearl rock, 3 parts of galena powder, 620 parts of sand, 1200 parts of stone, 275 parts of water, 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, 4 parts of fatty alcohol-polyoxyethylene ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；
By 15 parts of Cab-O-sil, 8 parts of zeolite powder, 7 parts of kieselguhr, 5 parts of perlite, calcine after the 3 parts of mixing of galena powder, calcined Journey：First it is heated to 500 DEG C, calcines 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, be warming up to 750 DEG C again, calcining 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in flour mill, rotating speed is 100r/min, grinding 3 hours, Grinding compound particles granularity size is 0.52mm,
Cement, grinding mixture and 125ml water are put into concrete mixer stir 5 minutes, add sand, stone and residue Water continue stirring 4 minutes, afterwards by 5 parts of polypropylene fibre, 6 parts of lignosulfonates, 3 parts of triterpene saponin, fatty alcohol polyoxy 4 parts of vinyl Ether, 2 parts of iron sulfate, 4 parts of fluosilicate, 3 parts of triethanolamine, 4 parts of calcium formate；Add, after stirring, obtain concrete；
Organic coating is by 83 parts of acrylic emulsion, 20 parts of silica sand, 4 parts of tripolycyanamide, 1 part of ethylene glycol, 3 parts of methane-siliconic acid, film forming 4 parts of auxiliary agent, 2 parts of sodium lauryl sulphate, 1 part of composition of polyacrylamide.
2. one kind as claimed in claim 2 corrosion-resistant circle pile tube, organic coating by 83 parts of acrylic emulsion, 20 parts of silica sand, 4 parts of tripolycyanamide, 1 part of ethylene glycol, 3 parts of methane-siliconic acid, 4 parts of coalescents, 2 parts of sodium lauryl sulphate, 1 part of polyacrylamide Composition.
CN201610446796.2A 2015-08-20 2015-08-20 A kind of construction of road and bridge with corrosion-resistant circle pile tube Pending CN106468056A (en)

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Application publication date: 20170301