CN106676389A - High-strength corrosion-resistant steel for oil conveying pipe and processing technology thereof - Google Patents

High-strength corrosion-resistant steel for oil conveying pipe and processing technology thereof Download PDF

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Publication number
CN106676389A
CN106676389A CN201611196039.0A CN201611196039A CN106676389A CN 106676389 A CN106676389 A CN 106676389A CN 201611196039 A CN201611196039 A CN 201611196039A CN 106676389 A CN106676389 A CN 106676389A
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parts
corrosion
cooled
resistant
steel plate
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袁增泉
丁学灵
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Suzhou Jing Yuan Oil Pressure Machinery Co Ltd
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Suzhou Jing Yuan Oil Pressure Machinery Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
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    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
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    • 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
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    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
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    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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Abstract

The invention discloses high-strength corrosion-resistant steel for an oil conveying pipe. The high-strength corrosion-resistant steel is characterized in that a steel plate comprises, by weight, 0.53%-0.67% of C, 0.15%-0.21% of Si, 0.63%-0.68% of Mn, 0.05%-0.12% of V, 0.002%-0.004% of Co, 0.25%-0.31% of Cr, 0.001%-0.002% of S, 0.065%-0.067% of Al, 0.002%-0.003% of N, 0.13%-0.26% of Mo, 0.001%-0.002% of Ca, 0.02%-0.04% of Cu, 0.026%-0.031% of Nb, 0.26%-0.35% of Ni, 0.08%-0.12% of W, 0.001%-0.0015% of Mg, 0.001%-0.002% of Ag, 0.003%-0.007% of Ti, and the balance Fe and inevitable impurities; and a layer of corrosion-resistant coating is arranged on the surface of the steel plate. The high-strength corrosion-resistant steel is high in strength, resistant to corrosion and high temperatures, and long in service life.

Description

A kind of petroleum pipeline high-strength corrosion-resistant steel and its processing technique
Technical field
The invention belongs to technical field of hydraulic equipment, particularly a kind of petroleum pipeline high-strength corrosion-resistant steel and its processing work Skill.
Background technology
One of groundwork parts of Hydraulic Station are exactly petroleum pipeline, and oil transportation tubing is generally steel pipe, using welding and method The attachment means such as orchid connect, and are opened and closed control and Flow-rate adjustment using valve；The sealing of petroleum pipeline, corrosion resistance and Its resistance to elevated temperatures, determines the work efficiency and service life of Hydraulic Station.
The content of the invention
The technical problem to be solved is the shortcoming for overcoming prior art, there is provided a kind of petroleum pipeline high intensity Corrosion resisting steel, with high intensity, corrosion-resistant and high-temperature resistant, long service life.
In order to solve above technical problem, the present invention provides a kind of petroleum pipeline high-strength corrosion-resistant steel, it is characterised in that The steel plate meter composition is：C：0.53-0.67%, Si：0.15-0.21%, Mn：0.63-0.68%, V： 0.05-0.12%, Co：0.002-0.004%, Cr：0.25-0.31%, S：0.001-0.002%, Al：0.065-0.067%, N： 0.002-0.003%, Mo：0.13-0.26%, Ca：0.001-0.002%, Cu：0.02-0.04%, Nb：0.026-0.031%, Ni: 0.26-0.35%, W：0.08-0.12%, Mg：0.001-0.0015%, Ag：0.001-0.002%, Ti：0.003-0.007%, remaining For Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：Organic siliconresin 30-40 Part, silicon carbide micro-powder 10-15 parts, ceramic fine bead 12-14 parts, boron nitride 5-8 parts, fine-grained alumina 7-9 parts, super fine zinc oxide 6- 8 parts, nano titanium oxide 8-12 parts, nano silicon 11-16 parts, politef 10-12 parts, carbon fiber powder 5-7 parts, disappear Infusion 3-4 parts, firming agent 3-5 parts, bonding agent 2-4 parts, deionized water 30-40 parts.
Further limits scheme of the invention：
Aforesaid steel plate meter composition is：C：0.58%, Si：0.16%, Mn：0.63%, V：0.08%, Co： 0.002%, Cr：0.28%, S：0.001%, Al：0.065%, N：0.002%, Mo：0.17%, Ca：0.001%, Cu：0.02%, Nb： 0.026%, Ni:0.28%, W：0.08%, Mg：0.001%, Ag：0.001%, Ti：0.003%, remaining is Fe miscellaneous with inevitable Matter；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：30 parts of organic siliconresin, carbon 11 parts of SiClx micropowder, 12 parts of ceramic fine bead, 5 parts of boron nitride, 7 parts of fine-grained alumina, 6 parts of super fine zinc oxide, nano titanium oxide 8 Part, 11 parts of nano silicon, 10 parts of politef, 5 parts of carbon fiber powder, 3 parts of defoamer, 3 parts of firming agent, 2 parts of bonding agent, Deionized water 34.
Aforesaid steel plate meter composition is：C：0.62%, Si：0.18%, Mn：0.65%, V：0.09%, Co： 0.003%, Cr：0.30%, S：0.0015%, Al：0.066%, N：0.0024%, Mo：0.21%, Ca：0.002%, Cu：0.03%, Nb：0.028%, Ni:0.31%, W：0.09%, Mg：0.0013%, Ag：0.0012%, Ti：0.004%, remaining is Fe and can not keep away Exempt from impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：Organic siliconresin 30-40 Part, 13 parts of silicon carbide micro-powder, 13 parts of ceramic fine bead, 7 parts of boron nitride, 8 parts of fine-grained alumina, 8 parts of super fine zinc oxide, nano-silica Change 10 parts of titanium, 13 parts of nano silicon, 11 parts of politef, 6 parts of carbon fiber powder, 4 parts of defoamer, 4 parts of firming agent, bonding 3 parts of agent, 36 parts of deionized water.
The preparation method of aforesaid corrosion-resistant finishes is：Organic siliconresin and politef are mixed, speed is 200-300r/min, the time is 30-40min, is subsequently adding silicon carbide micro-powder, ceramic fine bead, boron nitride, fine-grained alumina, super Thin Zinc Oxide, nano titanium oxide, nano silicon and carbon fiber powder, with 300-400r/min 2-3h is stirred, and temperature rises to , defoamer, firming agent and bonding agent are added while stirring, continue to stir 20-30min by 60-65 DEG C.
A kind of petroleum pipeline high-strength corrosion-resistant steel of the present invention and its processing technique, specifically include following steps：
Step one：Steel blank is placed in into heating stove heat according to said ratio, finish rolling initial temperature is 1030-1040 DEG C, eventually Temperature is rolled for 880-900 DEG C, slab is cooled to into 610-620 DEG C with the cooldown rate of 3-5 DEG C/s to adopt compressed air after hot rolling, Then adopt again water-cooled with the cooldown rate of 15-18 DEG C/s by slab water-cooled to 350-360 DEG C, then using air-cooled 8-10 DEG C/s's Slab is cooled to room temperature by cooldown rate；
Step 2：Step one is heated to into 580-600 DEG C, and is incubated 35-40min, then stably continue to be heated to 900-1000 DEG C, being passed through kerosene carries out Carburization Treatment, is then cooled to room temperature with the speed of 13-16 DEG C/s with atomization cooling；
Step 3：Step 2 is melted down and is heated to 780-800 DEG C, and be incubated 5-7 hours, then oil cooling is incubated to 450-480 DEG C 2-4 hours, then it is air cooled to room temperature；
Step 4：By step 3 deburring and polished, and in its outer wall coating erosion shield, drying warehouse-in.
The invention has the beneficial effects as follows：
Surface of steel plate of the present invention scribbles one layer of corrosion-resistant coating, improves the corrosion resistance of steel plate, add in dispensing silicon and molybdenum, Tungsten, chromium etc. are combined, and improve corrosion resistance and antioxidation；Addition manganese, improves intensity and hard, addition Ti, Al category element, mitigates The quality of steel plate, increased structural strength and decay resistance, and in anticorrosive coat coating silicon carbide micro-powder is added, and increased resistance to Mill property, while also improving intensity, adds bonding agent, preferably erosion shield can be coated in into surface of steel plate, is difficult to take off Fall, add politef and carbon fiber powder, the decay resistance of the present invention can be significantly improved, extend long service life.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of petroleum pipeline high-strength corrosion-resistant steel, and steel plate meter composition is：C：0.58%, Si：0.16%, Mn：0.63%, V：0.08%, Co：0.002%, Cr：0.28%, S：0.001%, Al：0.065%, N：0.002%, Mo： 0.17%, Ca：0.001%, Cu：0.02%, Nb：0.026%, Ni:0.28%, W：0.08%, Mg：0.001%, Ag：0.001%, Ti： 0.003%, remaining is Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：30 parts of organic siliconresin, carbon 11 parts of SiClx micropowder, 12 parts of ceramic fine bead, 5 parts of boron nitride, 7 parts of fine-grained alumina, 6 parts of super fine zinc oxide, nano titanium oxide 8 Part, 11 parts of nano silicon, 10 parts of politef, 5 parts of carbon fiber powder, 3 parts of defoamer, 3 parts of firming agent, 2 parts of bonding agent, Deionized water 34.
The preparation method of the present embodiment corrosion-resistant finishes is：Organic siliconresin and politef are mixed, speed For 200r/min, the time is 40min, is subsequently adding silicon carbide micro-powder, ceramic fine bead, boron nitride, fine-grained alumina, ultra-fine oxidation Zinc, nano titanium oxide, nano silicon and carbon fiber powder, with 300r/min 3h is stirred, and temperature rises to 60 DEG C, while stirring Defoamer, firming agent and bonding agent are added, continues to stir 26min.
A kind of petroleum pipeline high-strength corrosion-resistant steel of the present embodiment and its processing technique, specifically include following steps：
Step one：Steel blank is placed in into heating stove heat according to said ratio, finish rolling initial temperature is 1030 DEG C, finishing temperature For 880 DEG C, slab is cooled to into 620 DEG C with the cooldown rate of 4 DEG C/s to adopt compressed air after hot rolling, water-cooled is then adopted again with Slab to 360 DEG C, then is cooled to room temperature by slab water-cooled by the cooldown rate of 15 DEG C/s using the cooldown rate of air-cooled 8 DEG C/s；
Step 2：Step one is heated to into 580 DEG C, and is incubated 40min, then stably continue to be heated to 900 DEG C, be passed through kerosene and enter Row Carburization Treatment, is then cooled to room temperature with atomization cooling with the speed of 14 DEG C/s；
Step 3：Step 2 is melted down and is heated to 780 DEG C, and be incubated 6 hours, then oil cooling is incubated 4 hours to 450 DEG C, then empty It is cooled to room temperature；
Step 4：By step 3 deburring and polished, and in its outer wall coating erosion shield, drying warehouse-in.
Embodiment 2
The present embodiment provides a kind of petroleum pipeline high-strength corrosion-resistant steel, and steel plate meter composition is：C：0.62%, Si：0.18%, Mn：0.65%, V：0.09%, Co：0.003%, Cr：0.30%, S：0.0015%, Al：0.066%, N：0.0024%, Mo：0.21%, Ca：0.002%, Cu：0.03%, Nb：0.028%, Ni:0.31%, W：0.09%, Mg：0.0013%, Ag： 0.0012%, Ti：0.004%, remaining is Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：Organic siliconresin 30-40 Part, 13 parts of silicon carbide micro-powder, 13 parts of ceramic fine bead, 7 parts of boron nitride, 8 parts of fine-grained alumina, 8 parts of super fine zinc oxide, nano-silica Change 10 parts of titanium, 13 parts of nano silicon, 11 parts of politef, 6 parts of carbon fiber powder, 4 parts of defoamer, 4 parts of firming agent, bonding 3 parts of agent, 36 parts of deionized water.
The preparation method of the present embodiment corrosion-resistant finishes is：Organic siliconresin and politef are mixed, speed For 200-300r/min, the time is 30-40min, be subsequently adding silicon carbide micro-powder, ceramic fine bead, boron nitride, fine-grained alumina, Super fine zinc oxide, nano titanium oxide, nano silicon and carbon fiber powder, with 400r/min 2h is stirred, and temperature rises to 63 DEG C, Defoamer, firming agent and bonding agent are added while stirring, continue to stir 25min.
A kind of petroleum pipeline high-strength corrosion-resistant steel of the present embodiment and its processing technique, specifically include following steps：
Step one：Steel blank is placed in into heating stove heat according to said ratio, finish rolling initial temperature is 1040 DEG C, finishing temperature For 890 DEG C, slab is cooled to into 620 DEG C with the cooldown rate of 5 DEG C/s to adopt compressed air after hot rolling, water-cooled is then adopted again with Slab to 350 DEG C, then is cooled to room temperature by slab water-cooled by the cooldown rate of 18 DEG C/s using the cooldown rate of air-cooled 10 DEG C/s；
Step 2：Step one is heated to into 600 DEG C, and is incubated 35min, then stably continue to be heated to 1000 DEG C, be passed through kerosene Carburization Treatment is carried out, then room temperature is cooled to the speed of 16 DEG C/s with atomization cooling；
Step 3：Step 2 is melted down and is heated to 800 DEG C, and be incubated 5 hours, then oil cooling is incubated 2 hours to 460 DEG C, then empty It is cooled to room temperature；
Step 4：By step 3 deburring and polished, and in its outer wall coating erosion shield, drying warehouse-in.
Above example technological thought only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every According to technological thought proposed by the present invention, any change done on the basis of technical scheme, the scope of the present invention is each fallen within Within.

Claims (5)

1. a kind of petroleum pipeline high-strength corrosion-resistant steel, it is characterised in that the steel plate meter composition is：C： 0.53-0.67%, Si：0.15-0.21%, Mn：0.63-0.68%, V：0.05-0.12%, Co：0.002-0.004%, Cr：0.25- 0.31%, S：0.001-0.002%, Al：0.065-0.067%, N：0.002-0.003%, Mo：0.13-0.26%, Ca：0.001- 0.002%, Cu：0.02-0.04%, Nb：0.026-0.031%, Ni:0.26-0.35%, W：0.08-0.12%, Mg：0.001- 0.0015%, Ag：0.001-0.002%, Ti：0.003-0.007%, remaining is Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：Organic siliconresin 30-40 Part, silicon carbide micro-powder 10-15 parts, ceramic fine bead 12-14 parts, boron nitride 5-8 parts, fine-grained alumina 7-9 parts, super fine zinc oxide 6- 8 parts, nano titanium oxide 8-12 parts, nano silicon 11-16 parts, politef 10-12 parts, carbon fiber powder 5-7 parts, disappear Infusion 3-4 parts, firming agent 3-5 parts, bonding agent 2-4 parts, deionized water 30-40 parts.
2. petroleum pipeline high-strength corrosion-resistant steel according to claim 1, it is characterised in that steel plate percentage by weight It is than counting composition：C：0.58%, Si：0.16%, Mn：0.63%, V：0.08%, Co：0.002%, Cr：0.28%, S：0.001%, Al： 0.065%, N：0.002%, Mo：0.17%, Ca：0.001%, Cu：0.02%, Nb：0.026%, Ni:0.28%, W：0.08%, Mg： 0.001%, Ag：0.001%, Ti：0.003%, remaining is Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：30 parts of organic siliconresin, carbon 11 parts of SiClx micropowder, 12 parts of ceramic fine bead, 5 parts of boron nitride, 7 parts of fine-grained alumina, 6 parts of super fine zinc oxide, nano titanium oxide 8 Part, 11 parts of nano silicon, 10 parts of politef, 5 parts of carbon fiber powder, 3 parts of defoamer, 3 parts of firming agent, 2 parts of bonding agent, Deionized water 34.
3. petroleum pipeline high-strength corrosion-resistant steel according to claim 1, it is characterised in that steel plate percentage by weight It is than counting composition：C：0.62%, Si：0.18%, Mn：0.65%, V：0.09%, Co：0.003%, Cr：0.30%, S：0.0015%, Al：0.066%, N：0.0024%, Mo：0.21%, Ca：0.002%, Cu：0.03%, Nb：0.028%, Ni:0.31%, W：0.09%, Mg：0.0013%, Ag：0.0012%, Ti：0.004%, remaining is Fe and inevitable impurity；
The surface of steel plate is provided with one layer of corrosion-resistant finishes, according to the mass fraction including following components：Organic siliconresin 30-40 Part, 13 parts of silicon carbide micro-powder, 13 parts of ceramic fine bead, 7 parts of boron nitride, 8 parts of fine-grained alumina, 8 parts of super fine zinc oxide, nano-silica Change 10 parts of titanium, 13 parts of nano silicon, 11 parts of politef, 6 parts of carbon fiber powder, 4 parts of defoamer, 4 parts of firming agent, bonding 3 parts of agent, 36 parts of deionized water.
4. petroleum pipeline high-strength corrosion-resistant steel according to claim 1, it is characterised in that the system of the corrosion-resistant finishes Preparation Method is：Organic siliconresin and politef are mixed, speed is 200-300r/min, and the time is 30-40min, It is subsequently adding silicon carbide micro-powder, ceramic fine bead, boron nitride, fine-grained alumina, super fine zinc oxide, nano titanium oxide, nanometer two Silicon oxide and carbon fiber powder, with 300-400r/min 2-3h is stirred, and temperature rises to 60-65 DEG C, defoamer is added while stirring, is consolidated Agent and bonding agent, continue to stir 20-30min.
5. the Technology for Heating Processing of the petroleum pipeline high-strength corrosion-resistant steel according to claim 1-3, it is characterised in that concrete Comprise the following steps：Will
Step one：Steel blank is placed in into heating stove heat according to said ratio, finish rolling initial temperature is 1030-1040 DEG C, eventually Temperature is rolled for 880-900 DEG C, slab is cooled to into 610-620 DEG C with the cooldown rate of 3-5 DEG C/s to adopt compressed air after hot rolling, Then adopt again water-cooled with the cooldown rate of 15-18 DEG C/s by slab water-cooled to 350-360 DEG C, then using air-cooled 8-10 DEG C/s's Slab is cooled to room temperature by cooldown rate；
Step 2：Step one is heated to into 580-600 DEG C, and is incubated 35-40min, then stably continue to be heated to 900-1000 DEG C, being passed through kerosene carries out Carburization Treatment, is then cooled to room temperature with the speed of 13-16 DEG C/s with atomization cooling；
Step 3：Step 2 is melted down and is heated to 780-800 DEG C, and be incubated 5-7 hours, then oil cooling is incubated to 450-480 DEG C 2-4 hours, then it is air cooled to room temperature；
Step 4：By step 3 deburring and polished, and in its outer wall coating erosion shield, drying warehouse-in.
CN201611196039.0A 2016-12-22 2016-12-22 High-strength corrosion-resistant steel for oil conveying pipe and processing technology thereof Pending CN106676389A (en)

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CN107177256A (en) * 2017-06-26 2017-09-19 太仓市顺昌锻造有限公司 A kind of high strength steel
CN107639584A (en) * 2017-09-14 2018-01-30 国家电网公司 Combined electrical apparatus disintegration Special assisting tool
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CN107725920A (en) * 2017-08-22 2018-02-23 国家电网公司 Oil filter pipeline simple and fast attachment means
CN107720567A (en) * 2017-08-22 2018-02-23 国家电网公司 Cable lead traction adjustment specific purpose tool is worn in bushing shell for transformer lifting
CN107639584A (en) * 2017-09-14 2018-01-30 国家电网公司 Combined electrical apparatus disintegration Special assisting tool
CN107817825A (en) * 2017-09-14 2018-03-20 国家电网公司 A kind of Repair of Transformer oil-flow control apparatus
CN108128454A (en) * 2017-11-10 2018-06-08 国家电网公司 Unmanned plane livewire work line-throwing appliance
CN108085614A (en) * 2017-12-18 2018-05-29 定远县宝隆机械制造有限公司 A kind of moltening mold castings high-strength alloy formula
CN108149136A (en) * 2017-12-18 2018-06-12 定远县宝隆机械制造有限公司 A kind of moltening mold castings alloy formula
CN109457168A (en) * 2018-12-24 2019-03-12 宁波颂杰电器有限公司 Household gas range fuel gas conduit alloy and preparation method thereof and fuel gas conduit
CN109457168B (en) * 2018-12-24 2021-07-06 宁波正直科技有限公司 Gas pipe alloy of household gas stove, preparation method thereof and gas pipe
CN110776791A (en) * 2019-09-25 2020-02-11 界首市金龙机械设备有限公司 Paint spraying method of antibacterial wear-resistant grain machinery
CN111471930A (en) * 2020-05-26 2020-07-31 上海奉贤钢管厂有限公司 High-strength corrosion-resistant machining process for steel pipe
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Application publication date: 20170517