CN103740914A - Production process of 410 steel forge piece for deep-sea oil production equipment - Google Patents
Production process of 410 steel forge piece for deep-sea oil production equipment Download PDFInfo
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- CN103740914A CN103740914A CN201310517521.XA CN201310517521A CN103740914A CN 103740914 A CN103740914 A CN 103740914A CN 201310517521 A CN201310517521 A CN 201310517521A CN 103740914 A CN103740914 A CN 103740914A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a production process of a 410 steel forge piece for deep-sea oil production equipment. The production process comprises the following steps: a, forging with the initial forging temperature of 1180 DEG C, the final forging temperature of 850 DEG C and the forging ratio of greater than 3.5:1; b, carrying out heat treatment after forging: keeping the normalizing temperature at 1020-1060 DEG C, then carrying out wind cooling, and tempering with the tempering temperature of 760 DEG C after wind cooling; and c, carrying out performance heat treatment: at a speed of not more than 80 DEG C/h, rising the forge piece temperature to 650 DEG C+/-5 DEG C, carrying out heat preservation for 2.5-3 h, rapidly heating up to 980-1000 DEG C with the heating-up speed of about 200 DEG C/h, carrying out rapidly copious cooling after heat preservation, ensuring to cool to not more than 40 DEG C as soon as possible, then carrying out first tempering with the first tempering temperature of 670-690 DEG C, carrying out heat preservation for 2.5-3 h, then carrying out water cooling to the room temperature, next carrying out second tempering with the second tempering temperature of 620-650 DEG C, carrying out heat preservation for 2.5-3 h, and carrying out water cooling to the room temperature. The 410 steel forge piece product prepared by the production process has the advantages of high strength, corrosion resistance, pressure resistance, shock resistance and the like.
Description
Technical field
The present invention relates to the production technique of 410 steel forgings for a kind of deep-sea oil recovery equipment.
Background technology
Recovering the oil in deep-sea is to recover the oil at the benthos below 350 meters, and it is the requirements such as corrosion resistant, withstand voltage, shock resistance that deep-sea is recovered the oil to the requirement of equipment.The oil recovery technique current U.S. in deep-sea is most advanced, world Ji great oil production equipment manufacturing company Jun U.S., as FMC, CMR, GE etc., and we domestic at this piece, be almost blank.Forging on exploitation deep-sea oil recovery equipment is the key of research and development equipment, along with world energy sources situation day is becoming tight, to deep-sea, recovering the oil is developing direction from now on, China is now the first in the world power consumption big country, and there is a large amount of submarine oils at the South Sea of China, the forging of sending out on deep-sea oil recovery equipment of therefore explaining clearly is to have prospect very widely.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of can preparing can reach the production technique of 410 steel forgings for the deep-sea oil recovery equipment of corrosion resistant, withstand voltage, shock resistance requirement index.
For addressing the above problem, the technical solution used in the present invention is: the production technique of 410 steel forgings for deep-sea oil recovery equipment, comprises the steps:
A, forging: initial forging temperature is 1180 ℃, and final forging temperature is 850 ℃, and forging ratio is greater than 3.5:1;
B, forge postheat treatment: normalizing temperature remains between 1020～1060 ℃, then carry out air-cooledly, carry out tempering after air-cooled, tempering temperature is 760 ℃;
C, property heat treatment: to be not more than the speed of 80 ℃/h, forging is warming up to 5 ℃, 650 ℃ of soil, after insulation 2.5-3h, be rapidly heated to 980～1000 ℃, heat-up rate is 200 ℃/h left and right, and after insulation, quick deep cooling, will reduce water temperature when cooling, water coolant will circulate, stir, guarantee to be cooled to as quickly as possible and be not more than 40 ℃, then carry out a tempering, Tempering temperature is 670～690 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature, then carry out double tempering, double tempering temperature is 620-650 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature.
The invention has the beneficial effects as follows: by the prepared 410 steel forgings products of above-mentioned production technique, there is the advantages such as high strength, corrosion resistant, withstand voltage, shock resistance, property indices has all surpassed U.S. ASTMA370-2011 standard, reached the advanced level of similar products at home and abroad, filled up domestic blank, market development potentiality are unlimited.
After tested, concrete technical indicator is as follows:
| Index subjet | This product | Desired value |
| Tensile strength sigma b/MPa | 685 | ≥655 |
| Yield strength σ 0.2/MPa | 535 | ≥517 |
| Hardness/HB | 222 | ≥207-235 |
| Elongation δ/% | 23 | 18 |
| Relative reduction in area Ψ/% | 74 | 35 |
| Impelling strength (29 ℃) KV2 | 80、76、74 | ≥27 |
Embodiment
Below by specific embodiment, deep-sea oil recovery equipment of the present invention is described in further detail by the production technique of 410 steel forgings.
The production technique of 410 steel forgings for deep-sea oil recovery equipment, comprises the steps:
A, forging: initial forging temperature is 1180 ℃, it is overheated over 1200 ℃, easily to cause, even burning, and final forging temperature is 850 ℃, too low final forging temperature will cause the possibility of part cracking, too high is also the reason that forms coarse grains, and forging ratio is greater than 3.5:1, guarantees to forge rear close structure, and can smash thick austenite crystal, inclusion disperse distributes, and eliminates banded structure, alleviates anisotropy.When approaching final forging temperature, adopt the fast forging process of forging of tip-tap, can make crystal grain more tiny, to improving mechanical property, lay the foundation.
B, forge postheat treatment: normalizing temperature remains between 1020～1060 ℃, then carry out air-cooledly, carry out tempering after air-cooled, tempering temperature is 760 ℃;
C, property heat treatment: to be not more than the speed of 80 ℃/h, forging is warming up to 5 ℃, 650 ℃ of soil, after insulation 2.5-3h, be rapidly heated to 980～1000 ℃, heat-up rate is 200 ℃/h left and right, object improves nucleation rate, reduce coarsening rate, quick deep cooling after insulation, when cooling, to reduce water temperature, water coolant will circulate, stir, guarantee to be cooled to as quickly as possible and be not more than 40 ℃, these are all to improve depth of hardening zone, improve the effective ways of mechanical property, then carry out a tempering, Tempering temperature is 670～690 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature, carry out again double tempering, double tempering temperature is 620-650 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature.
The invention has the beneficial effects as follows: by the prepared 410 steel forgings products of above-mentioned production technique, there is the advantages such as high strength, corrosion resistant, withstand voltage, shock resistance, property indices has all surpassed U.S. ASTMA370-2011 standard, reached the advanced level of similar products at home and abroad, filled up domestic blank, market development potentiality are unlimited.
After tested, concrete technical indicator is as follows:
| Index subjet | This product | Desired value |
| Tensile strength sigma b/MPa | 685 | ≥655 |
| Yield strength σ 0.2/MPa | 535 | ≥517 |
| Hardness/HB | 222 | ≥207-235 |
| Elongation δ/% | 23 | 18 |
| Relative reduction in area Ψ/% | 74 | 35 |
| Impelling strength (29 ℃) KV2 | 80、76、74 | ≥27 |
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (1)
1. the production technique of 410 steel forgings for deep-sea oil recovery equipment, is characterized in that: comprise the steps:
A, forging: initial forging temperature is 1180 ℃, and final forging temperature is 850 ℃, and forging ratio is greater than 3.5:1;
B, forge postheat treatment: normalizing temperature remains between 1020～1060 ℃, then carry out air-cooledly, carry out tempering after air-cooled, tempering temperature is 760 ℃;
C, property heat treatment: to be not more than the speed of 80 ℃/h, forging is warming up to 650 ℃ ± 5 ℃, after insulation 2.5-3h, be rapidly heated to 980～1000 ℃, heat-up rate is 200 ℃/h left and right, and after insulation, quick deep cooling, will reduce water temperature when cooling, water coolant will circulate, stir, guarantee to be cooled to as quickly as possible and be not more than 40 ℃, then carry out a tempering, Tempering temperature is 670～690 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature, then carry out double tempering, double tempering temperature is 620-650 ℃, after insulation 2.5-3h, carry out water-cooled to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310517521.XA CN103740914A (en) | 2013-10-28 | 2013-10-28 | Production process of 410 steel forge piece for deep-sea oil production equipment |
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| CN201310517521.XA CN103740914A (en) | 2013-10-28 | 2013-10-28 | Production process of 410 steel forge piece for deep-sea oil production equipment |
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| CN103740914A true CN103740914A (en) | 2014-04-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017966A (en) * | 2014-04-28 | 2014-09-03 | 张家港海锅重型锻件有限公司 | Production process of F22 steel forged piece for deep sea explosion-roof device |
| CN104818375A (en) * | 2015-05-26 | 2015-08-05 | 山东伊莱特重工有限公司 | Heat treatment process for strengthening and toughening large wind power flange forgings |
| CN105018701A (en) * | 2015-07-14 | 2015-11-04 | 张家港海锅重型锻件有限公司 | Production process for 8630 forge piece for oil extraction equipment |
| CN106119723A (en) * | 2016-06-24 | 2016-11-16 | 张家港海锅重型锻件有限公司 | A kind of production method of deep-sea oil extracting ship 4130 coupling forging raw material |
| CN110484821A (en) * | 2019-09-13 | 2019-11-22 | 张家港海锅新能源装备股份有限公司 | A kind of production method of deep-sea oil extraction pipeline interconnection proof assembl forging raw material |
| CN110484806A (en) * | 2019-09-15 | 2019-11-22 | 张家港海锅新能源装备股份有限公司 | A kind of production method of deep-sea oil production equipment 20Mn2 forging raw material |
| CN113930657A (en) * | 2021-09-23 | 2022-01-14 | 江苏裕隆锻造有限公司 | Technological method for improving mechanical property of 410 forge piece |
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| CN101764334A (en) * | 2010-01-12 | 2010-06-30 | 上海昌强电站配件有限公司 | Die forging method of collector ring fan |
| CN102756071A (en) * | 2012-08-05 | 2012-10-31 | 贵州航天新力铸锻有限责任公司 | Forging method for AP1000 type nuclear power station reactor pressure vessel main bolt |
| CN102974729A (en) * | 2012-08-22 | 2013-03-20 | 昌利锻造有限公司 | Machining method of automobile engine left plate |
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2013
- 2013-10-28 CN CN201310517521.XA patent/CN103740914A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764334A (en) * | 2010-01-12 | 2010-06-30 | 上海昌强电站配件有限公司 | Die forging method of collector ring fan |
| CN102756071A (en) * | 2012-08-05 | 2012-10-31 | 贵州航天新力铸锻有限责任公司 | Forging method for AP1000 type nuclear power station reactor pressure vessel main bolt |
| CN102974729A (en) * | 2012-08-22 | 2013-03-20 | 昌利锻造有限公司 | Machining method of automobile engine left plate |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017966A (en) * | 2014-04-28 | 2014-09-03 | 张家港海锅重型锻件有限公司 | Production process of F22 steel forged piece for deep sea explosion-roof device |
| CN104818375A (en) * | 2015-05-26 | 2015-08-05 | 山东伊莱特重工有限公司 | Heat treatment process for strengthening and toughening large wind power flange forgings |
| CN105018701A (en) * | 2015-07-14 | 2015-11-04 | 张家港海锅重型锻件有限公司 | Production process for 8630 forge piece for oil extraction equipment |
| CN106119723A (en) * | 2016-06-24 | 2016-11-16 | 张家港海锅重型锻件有限公司 | A kind of production method of deep-sea oil extracting ship 4130 coupling forging raw material |
| CN110484821A (en) * | 2019-09-13 | 2019-11-22 | 张家港海锅新能源装备股份有限公司 | A kind of production method of deep-sea oil extraction pipeline interconnection proof assembl forging raw material |
| CN110484821B (en) * | 2019-09-13 | 2021-06-04 | 张家港海锅新能源装备股份有限公司 | Production method of forging raw material for deep-sea oil production pipeline interconnection explosion-proof assembly |
| CN110484806A (en) * | 2019-09-15 | 2019-11-22 | 张家港海锅新能源装备股份有限公司 | A kind of production method of deep-sea oil production equipment 20Mn2 forging raw material |
| CN110484806B (en) * | 2019-09-15 | 2021-05-18 | 张家港海锅新能源装备股份有限公司 | Production method of 20Mn2 forging raw material for deep sea oil extraction equipment |
| CN113930657A (en) * | 2021-09-23 | 2022-01-14 | 江苏裕隆锻造有限公司 | Technological method for improving mechanical property of 410 forge piece |
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Application publication date: 20140423 |