CN105112805A - Rectangular steel pipe concrete prefabricated part - Google Patents
Rectangular steel pipe concrete prefabricated part Download PDFInfo
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- CN105112805A CN105112805A CN201510467410.1A CN201510467410A CN105112805A CN 105112805 A CN105112805 A CN 105112805A CN 201510467410 A CN201510467410 A CN 201510467410A CN 105112805 A CN105112805 A CN 105112805A
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Abstract
The invention discloses a rectangular steel pipe concrete prefabricated part. The rectangular steel pipe concrete prefabricated part comprises a rectangular steel pipe at the outer periphery, wherein a cross rib is welded on the inner wall of the steel pipe; and concrete is filled in the steel pipe; the rectangular steel pipe at the outer periphery of the concrete prefabricated part can preferably guarantee the product bearing force; and an iron base alloy material fully satisfies the requirement of product external strength, and can restrain the concrete expansion.
Description
Technical field
The present invention relates to a kind of concrete-filled rectangular steel tube prefabricated component, belongs to building manufacture field.
Background technology
Existing concrete filled steel tubular member is generally at circular steel casing pack concrete, and its outer shape is that steel pipe is circular, and inside is hollow cavity-like or solid.Concrete filled steel tubular member is from heavy and light, and holding capacity is large.Structure properties is good, and adopt batch production to make and effectively can ensure theory of structures, discreteness is little, and factorial praluction is energy-conservation, is conducive to environmental protection, reduces the noise of site operation.
Summary of the invention
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.3-0.4 ﹪, Zn:6-7 ﹪, Cu:3-4 ﹪, Mg:1-2 ﹪, Ni:0.8-0.9 ﹪, W:0.5-0.6 ﹪, Cr:0.4-0.5 ﹪, Al:0.1-0.2 ﹪, Ti:0.07-0.08 ﹪, Mo:0.06-0.07 ﹪, V:0.03-0.04 ﹪, Si:0.02-0.03 ﹪, Sn:0.02-0.03 ﹪, Pr:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1050-1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.5-0.7mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Described a kind of concrete-filled rectangular steel tube prefabricated component, rectangular steel pipe chemical element consists of (weight percent): C:0.3 ﹪, Zn:6 ﹪, Cu:3 ﹪, Mg:1 ﹪, Ni:0.8 ﹪, W:0.5 ﹪, Cr:0.4 ﹪, Al:0.1 ﹪, Ti:0.07 ﹪, Mo:0.06 ﹪, V:0.03 ﹪, Si:0.02 ﹪, Sn:0.02 ﹪, Pr:0.01 ﹪, surplus is Fe and inevitable impurity.
Described a kind of concrete-filled rectangular steel tube prefabricated component, rectangular steel pipe chemical element consists of (weight percent): C:0.3-0.4 ﹪, Zn:7 ﹪, Cu:4 ﹪, Mg:2 ﹪, Ni:0.9 ﹪, W:0.6 ﹪, Cr:0.5 ﹪, Al:0.2 ﹪, Ti:0.08 ﹪, Mo:0.07 ﹪, V:0.04 ﹪, Si:0.03 ﹪, Sn:0.03 ﹪, Pr:0.02 ﹪, surplus is Fe and inevitable impurity.
Described a kind of concrete-filled rectangular steel tube prefabricated component, rectangular steel pipe chemical element consists of (weight percent): C:0.35 ﹪, Zn:6.5 ﹪, Cu:3.5 ﹪, Mg:1.5 ﹪, Ni:0.85 ﹪, W:0.55 ﹪, Cr:0.45 ﹪, Al:0.15 ﹪, Ti:0.075 ﹪, Mo:0.065 ﹪, V:0.035 ﹪, Si:0.025 ﹪, Sn:0.025 ﹪, Pr:0.015 ﹪, surplus is Fe and inevitable impurity.
Described a kind of concrete-filled rectangular steel tube prefabricated component, grinding compound particles granularity size is 0.5mm.
Described a kind of concrete-filled rectangular steel tube prefabricated component, grinding compound particles granularity size is 0.7mm.
Described a kind of concrete-filled rectangular steel tube prefabricated component, grinding compound particles granularity size is 0.6mm.
Described a kind of concrete-filled rectangular steel tube prefabricated component, is heated to 1050 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
Described a kind of concrete-filled rectangular steel tube prefabricated component, is heated to 1100 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
Described a kind of concrete-filled rectangular steel tube prefabricated component, is heated to 1070 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
A manufacture method for concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.3-0.4 ﹪, Zn:6-7 ﹪, Cu:3-4 ﹪, Mg:1-2 ﹪, Ni:0.8-0.9 ﹪, W:0.5-0.6 ﹪, Cr:0.4-0.5 ﹪, Al:0.1-0.2 ﹪, Ti:0.07-0.08 ﹪, Mo:0.06-0.07 ﹪, V:0.03-0.04 ﹪, Si:0.02-0.03 ﹪, Sn:0.02-0.03 ﹪, Pr:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1050-1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.5-0.7mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Concrete is filled in rectangular steel pipe by pouring type.
Foregoing invention content is relative to the beneficial effect of prior art: 1) rectangular steel pipe of concrete precast element periphery of the present invention can better ensure product holding capacity; 2) ferrous alloy material fully meets the external intensity requirement of product of the present invention, can also suppress concrete expansion, 3) concrete material of the present invention select multiple batch mixing form ultimate compression strength reach: 7d:30MPa; 28d:49MPa; 4) cross-rib rib makes that product structure is functional comprehensively improves product strength.
Accompanying drawing explanation
Fig. 1 is prefabricated component overall schematic;
Fig. 2 is prefabricated component schematic cross-section.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now describe the specific embodiment of the present invention in detail.
A kind of concrete-filled rectangular steel tube prefabricated component 4 as depicted in figs. 1 and 2, the rectangular steel pipe 1, the steel pipe inner wall that comprise periphery are welded with cross-rib rib 3, and steel duct is filled with concrete 2.
Cross-rib rib is welded into crosswise by ferrous alloy bar, is integrally welded on steel pipe inner wall and forms cross-rib rib, and can be arranged in parallel along steel pipe body direction many group cross-rib ribs, 10cm of being often separated by between group cross-rib rib.
Concrete is filled in rectangular steel pipe by pouring type.
Embodiment 1
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.3 ﹪, Zn:6 ﹪, Cu:3 ﹪, Mg:1 ﹪, Ni:0.8 ﹪, W:0.5 ﹪, Cr:0.4 ﹪, Al:0.1 ﹪, Ti:0.07 ﹪, Mo:0.06 ﹪, V:0.03 ﹪, Si:0.02 ﹪, Sn:0.02 ﹪, Pr:0.01 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1050-1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.5-0.7mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Embodiment 2
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.32 ﹪, Zn:6.1 ﹪, Cu:3.4 ﹪, Mg:1.1 ﹪, Ni:0.84 ﹪, W:0.53 ﹪, Cr:0.43 ﹪, Al:0.12 ﹪, Ti:0.071 ﹪, Mo:0.062 ﹪, V:0.033 ﹪, Si:0.023 ﹪, Sn:0.024 ﹪, Pr:0.012 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1050 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.5mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Embodiment 3
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.4 ﹪, Zn:7 ﹪, Cu:4 ﹪, Mg:2 ﹪, Ni:0.9 ﹪, W:0.6 ﹪, Cr:0.5 ﹪, Al:0.2 ﹪, Ti:0.08 ﹪, Mo:0.07 ﹪, V:0.04 ﹪, Si:0.03 ﹪, Sn:0.03 ﹪, Pr:0.02 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is 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 and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.7mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Embodiment 4
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.35 ﹪, Zn:6.5 ﹪, Cu:3.5 ﹪, Mg:1.5 ﹪, Ni:0.85 ﹪, W:0.55 ﹪, Cr:0.45 ﹪, Al:0.15 ﹪, Ti:0.075 ﹪, Mo:0.065 ﹪, V:0.035 ﹪, Si:0.025 ﹪, Sn:0.025 ﹪, Pr:0.015 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1070 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.6mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Embodiment 5
A kind of concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.37 ﹪, Zn:6.6 ﹪, Cu:3.8 ﹪, Mg:1.9 ﹪, Ni:0.86 ﹪, W:0.57 ﹪, Cr:0.48 ﹪, Al:0.19 ﹪, Ti:0.078 ﹪, Mo:0.067 ﹪, V:0.036 ﹪, Si:0.026 ﹪, Sn:0.027 ﹪, Pr:0.016 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1090 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.68mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
Claims (10)
1. a concrete-filled rectangular steel tube prefabricated component, the rectangular steel pipe, the steel pipe inner wall that comprise periphery are welded with cross-rib rib, and steel duct is filled with concrete,
Rectangular steel pipe chemical element consists of (weight percent): C:0.3-0.4 ﹪, Zn:6-7 ﹪, Cu:3-4 ﹪, Mg:1-2 ﹪, Ni:0.8-0.9 ﹪, W:0.5-0.6 ﹪, Cr:0.4-0.5 ﹪, Al:0.1-0.2 ﹪, Ti:0.07-0.08 ﹪, Mo:0.06-0.07 ﹪, V:0.03-0.04 ﹪, Si:0.02-0.03 ﹪, Sn:0.02-0.03 ﹪, Pr:0.01-0.02 ﹪, surplus is Fe and inevitable impurity;
The preparation method of rectangular steel pipe: comprise the following steps: according to the elementary composition batching of above-mentioned rectangular steel pipe, first pure iron is joined in smelting furnace, Control for Kiln Temperature is at 1450 DEG C, after pure iron fusing, furnace temperature drops to 1440 DEG C and adds zinc-iron master alloy, after furnace temperature be reduced to 1430 DEG C add copper iron master alloy; After furnace temperature be reduced to 1420 DEG C add magnesium iron master alloy; After furnace temperature be reduced to 1410 DEG C add other alloying elements, rear furnace temperature is elevated to 1430 DEG C, add refining scavenging agent, refining scavenging agent add-on is 0.6% of furnace charge amount, stirs 10 minutes, leave standstill 20 minutes, treat that slag is separated with molten metal, skim, after add insulating covering agent, leave standstill and again skim after 30 minutes, afterwards to pouring into a mould; Teeming temperature is 1400 DEG C; The ingot casting obtained is heat-treated: first carried out being heated to 800 DEG C by ingot casting, temperature rise rate 80 DEG C/h, is incubated 3 hours, carry out quench treatment afterwards, quenchant is water, after quenching, ingot casting is heated to 600 DEG C from room temperature, temperature rise rate 60 DEG C/h, is incubated 5 hours, after be cooled to 400 DEG C, rate of temperature fall 50 DEG C/h, is incubated 3 hours, after be again cooled to 300 DEG C, rate of temperature fall 50 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
The ingot casting of gained is heated to 1050-1100 DEG C, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe,
The original pipe of gained carries out multistage annealing, is first warming up to 750 DEG C, temperature rise rate 150 DEG C/h, is incubated 2 hours, after be cooled to 550 DEG C, rate of temperature fall 70 DEG C/h, be incubated 4 hours, after be again cooled to 400 DEG C, be incubated 3 hours, rear air cooling to room temperature,
Original pipe after annealing carries out cold rolling, obtains pipe idiosome
Coordinated by rectangle rectification mould and plug by pipe idiosome and obtain rectangular steel pipe through four drawings, the drawing temperature of first time drawing is 850 DEG C, and drawing speed is 6 mm/second; The drawing temperature of second time drawing is 820 DEG C, and drawing speed is 8 mm/second; The drawing temperature of third time drawing is 800 DEG C, and drawing speed is 10 mm/second; The drawing temperature of the 4th drawing is 780 DEG C, and drawing speed is 12 mm/second, obtains final rectangular steel pipe,
Concrete preparation method is: take raw material (weight part): cement 400 parts, Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, sepiolite powder 5 parts, 600 parts, sand, 1200 parts, stone, 275 parts, water, slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea;
By Feldspar Powder 10 parts, 10 parts, flyash, ground dolomite 5 parts, chromite 5 parts, calcining after sepiolite powder 5 parts mixing, calcination process: be first heated to 500 DEG C, calcine 2 hours, be warming up to 650 DEG C afterwards, calcine 3 hours, again be warming up to 750 DEG C, calcine 1 hour, furnace cooling afterwards, mixture after calcining is carried out grinding in pulverizer, and rotating speed is 100r/min, grinding 3 hours, grinding compound particles granularity size is 0.5-0.7mm
Cement, grinding mixture and 125ml water are put into concrete mixer and stirs 5 minutes, add sand, stone and remaining water again and continue stirring 4 minutes, afterwards by slag fiber 4 parts, sulfonated melamine compound resin 5 parts, sodium alkyl benzene sulfonate 3 parts, Sunmorl N 60S 2 parts, trisodium phosphate 2 parts, 2.5 parts, nitrocalcite, 2.5 parts, urea add, and obtain concrete after stirring.
2. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, rectangular steel pipe chemical element consists of (weight percent): C:0.3 ﹪, Zn:6 ﹪, Cu:3 ﹪, Mg:1 ﹪, Ni:0.8 ﹪, W:0.5 ﹪, Cr:0.4 ﹪, Al:0.1 ﹪, Ti:0.07 ﹪, Mo:0.06 ﹪, V:0.03 ﹪, Si:0.02 ﹪, Sn:0.02 ﹪, Pr:0.01 ﹪, surplus is Fe and inevitable impurity.
3. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, rectangular steel pipe chemical element consists of (weight percent): C:0.3-0.4 ﹪, Zn:7 ﹪, Cu:4 ﹪, Mg:2 ﹪, Ni:0.9 ﹪, W:0.6 ﹪, Cr:0.5 ﹪, Al:0.2 ﹪, Ti:0.08 ﹪, Mo:0.07 ﹪, V:0.04 ﹪, Si:0.03 ﹪, Sn:0.03 ﹪, Pr:0.02 ﹪, surplus is Fe and inevitable impurity.
4. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, rectangular steel pipe chemical element consists of (weight percent): C:0.35 ﹪, Zn:6.5 ﹪, Cu:3.5 ﹪, Mg:1.5 ﹪, Ni:0.85 ﹪, W:0.55 ﹪, Cr:0.45 ﹪, Al:0.15 ﹪, Ti:0.075 ﹪, Mo:0.065 ﹪, V:0.035 ﹪, Si:0.025 ﹪, Sn:0.025 ﹪, Pr:0.015 ﹪, surplus is Fe and inevitable impurity.
5. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, grinding compound particles granularity size is 0.5mm.
6. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, grinding compound particles granularity size is 0.7mm.
7. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, grinding compound particles granularity size is 0.6mm.
8. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, is heated to 1050 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
9. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 1, is heated to 1100 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
10. a kind of concrete-filled rectangular steel tube prefabricated component as claimed in claim 10, is heated to 1070 DEG C by the ingot casting of gained, Extrusion Porthole Die for Aluminium Profiles tool carries out hot extrusion and obtains original pipe.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675724A (en) * | 2018-06-11 | 2018-10-19 | 河北安和新材料科技有限公司 | A kind of concrete and preparation method thereof containing slag fiber |
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| CN200946267Y (en) * | 2006-09-27 | 2007-09-12 | 宝山钢铁股份有限公司 | Rectangular steel pipe centrifugal concrete member |
| CN101555116A (en) * | 2009-05-26 | 2009-10-14 | 平顶山市天石商品混凝土有限公司 | Method for preparing high-strength concrete |
| CN104278841A (en) * | 2013-07-09 | 2015-01-14 | 宏润建设集团股份有限公司 | Method for pouring concrete in steel pipe column |
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| CN1401012A (en) * | 2000-02-28 | 2003-03-05 | 新日本制铁株式会社 | Steel pipe having excellent formability and method for production thereof |
| CN200946267Y (en) * | 2006-09-27 | 2007-09-12 | 宝山钢铁股份有限公司 | Rectangular steel pipe centrifugal concrete member |
| CN101555116A (en) * | 2009-05-26 | 2009-10-14 | 平顶山市天石商品混凝土有限公司 | Method for preparing high-strength concrete |
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Application publication date: 20151202 |