CN102974983A - Process for manufacturing spherical tank with 1000cm diameter - Google Patents
Process for manufacturing spherical tank with 1000cm diameter Download PDFInfo
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- CN102974983A CN102974983A CN2012105058029A CN201210505802A CN102974983A CN 102974983 A CN102974983 A CN 102974983A CN 2012105058029 A CN2012105058029 A CN 2012105058029A CN 201210505802 A CN201210505802 A CN 201210505802A CN 102974983 A CN102974983 A CN 102974983A
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Abstract
The invention discloses a process for manufacturing a spherical tank with a 1000cm diameter. The process for manufacturing the spherical tank with the1000cm diameter comprises the following steps of: performing ultrasonic flaw detection on a raw material; marking off, cutting and blanking; pressing a waist drum-shaped limb; pressing an upper segment seal head and a lower segment seal head; processing a welding groove; performing pretest assembling on a cylinder body; packaging after passed examination; transporting to the field; and completing field welding. The process for manufacturing the spherical tank with the1000cm diameter meets the requirements of an accumulator spherical tank for nuclear power.
Description
Technical field
The present invention relates to a kind of diameter and be 1000 centimetres spherical tank manufacture craft.
Background technology
Along with industrial expansion, the application of large-size spherical tank be people in the urgent need to, for example diameter is 1000 centimetres large-size spherical tank, but at present large-size spherical tank on market still seldom, its manufacture craft is very complicated and strict.
Summary of the invention
The object of the present invention is to provide a kind of technique diameter simple and that can satisfy instructions for use is 1000 centimetres spherical tank manufacture craft.
For realizing purpose of the present invention, a kind of diameter is 1000 centimetres spherical tank manufacture craft, its process is, pack → be transported to place → Site Welding after the dolioform limb of raw material ultrasonic examination → line cutting stock → suppress → suppress upper and lower segment seal head → bevel for welding processing → stack shell prerun assembling → passed examination and finish, wherein suppressing the used steel plate blank of dolioform limb is clad steel plate SA533Type.BClass.1+SA240Type.304L.
The Technology for Heating Processing of the steel plate blank that the dolioform limb of described compacting is used is, the steel plate blank is advancing the stove heating below 300 ℃, insulation is 80 minutes when being heated to 700 ± 10 ℃ with≤180 ℃/hour heating rates, then be cooled to 〉=350 ℃, steel plate blank after the heat treatment is placed on the mould, blank holder compresses around the steel plate blank, patrix moves downward, so that the steel plate blank is clamp-oned in the mould circle of counterdie, guaranteeing the steel plate blank in the situation that upper die and lower die compress, with steel plate blank air cooling to room temperature.
Need annealing in process after the compacting of described upper and lower segment seal head, first upper and lower segment seal head is heated to 300 ℃ and be incubated 120 minutes, then be heated to 750 ℃ ± 10 ℃ and be incubated 150 minutes with≤100 ℃/hour speed, and then air cooling is to room temperature.
When described Site Welding adopts SMAW, satisfy following requirement: when spherical tank adopts a minute band to assemble, should after nondestructive testing is qualified, be assembled into again integral body at vertical, the circumferential weld of each band of assembly platform welding, then carry out the respectively welding between the band; When spherical tank adopts the burst assembling, should weld by the principle of circumferential weld behind the first longitudinal joint.
Described SMAW is two-sided butt weld, the laggard row back gouging of one-sided welding.
Described back chipping is carbon arc gas back chipping, will guarantee one direct join of groove shape crushing channeling and worn carburized layer behind the back chipping, and adopts VT, MT or PT detection method to detect.
During described welding, starting the arc end adopts and retreats the starting the arc of starting the arc method, receives the arc end arc crater is filled up, and the interlayer joint of multilayer welding staggers.
The invention has the beneficial effects as follows: this Technology for Heating Processing mainly solves the post weld heat treatment problem, annotate the specification requirement of case spherical tank according to peace, only heat-treat to eliminate weld residual stress, restorer performance, because spherical tank is bulky, the ball thickness of slab, large during the relative forge hot of resistance of deformation during warm forging, not yielding, so spherical tank plate hardness high strength is high after the distortion, the work hardening phenomenon appears in plasticity, toughness drop, therefore Technology for Heating Processing can be eliminated this phenomenon, improves plasticity, toughness, the reduction hardness of material.
Description of drawings
Fig. 1 is the heat treatment cycle curve figure of steel plate blank;
Fig. 2 is the annealing in process curve map after the compacting of upper and lower segment seal head.
The specific embodiment
Below in conjunction with accompanying drawing, be that 1000 centimetres spherical tank manufacture craft is described in further detail to diameter of the present invention.
A kind of diameter is 1000 centimetres spherical tank manufacture craft, its process is, pack → be transported to place → Site Welding after the dolioform limb of raw material ultrasonic examination → line cutting stock → suppress → suppress upper and lower segment seal head → bevel for welding processing → stack shell prerun assembling → passed examination and finish, wherein suppressing the used steel plate blank of dolioform limb is clad steel plate SA533Type.B Class.1+SA240Type.304L.
As shown in Figure 1, the Technology for Heating Processing of the steel plate blank that the dolioform limb of described compacting is used is, the steel plate blank is advancing the stove heating below 300 ℃, insulation is 80 minutes when being heated to 700 ± 10 ℃ with≤180 ℃/hour heating rates, then be cooled to 〉=350 ℃, steel plate blank after the heat treatment is placed on the mould, blank holder compresses around the steel plate blank, patrix moves downward, so that the steel plate blank is clamp-oned in the mould circle of counterdie, guaranteeing the steel plate blank in the situation that upper die and lower die compress, with steel plate blank air cooling to room temperature.
As shown in Figure 2, need annealing in process after the compacting of described upper and lower segment seal head, first upper and lower segment seal head is heated to 300 ℃ and be incubated 120 minutes, then be heated to 750 ℃ ± 10 ℃ and be incubated 150 minutes with≤100 ℃/hour speed, and then air cooling is to room temperature.Through after the above-mentioned twice heat treatment, billet material clad steel plate SA533Type.B Class.1+SA240Type.304L just has such as the chemical composition % in the following table 1.Mechanical property satisfies table 2.
Annotate: the content of SA533Type.B Class.1 aluminium is total aluminium content requirement in the table
Table 1
Table 2
When described Site Welding adopts SMAW, satisfy following requirement: when spherical tank adopts a minute band to assemble, should after nondestructive testing is qualified, be assembled into again integral body at vertical, the circumferential weld of each band of assembly platform welding, then carry out the respectively welding between the band; When spherical tank adopts the burst assembling, should weld by the principle of circumferential weld behind the first longitudinal joint.During described welding, starting the arc end adopts and retreats the starting the arc of starting the arc method, receives the arc end arc crater is filled up, and the interlayer joint of multilayer welding staggers.Described SMAW is two-sided butt weld, the laggard row back gouging of one-sided welding.Described back chipping is carbon arc gas back chipping, will guarantee one direct join of groove shape crushing channeling and worn carburized layer behind the back chipping, and adopts VT, MT or PT detection method to detect.
The peace that the performance of high strength and the aqueous corrosion of anti-boron of having the spherical tank that forms according to above-mentioned technique manufacturing can satisfy on the nuclear power is annotated the requirement of case spherical tank.
Claims (7)
1. diameter is 1000 centimetres spherical tank manufacture craft, it is characterized in that: its process is, pack → be transported to place → Site Welding after the dolioform limb of raw material ultrasonic examination → line cutting stock → suppress → suppress upper and lower segment seal head → bevel for welding processing → stack shell prerun assembling → passed examination and finish, wherein suppressing the used steel plate blank of dolioform limb is clad steel plate SA533Type.B Class.1+SA240Type.304L.
2. diameter according to claim 1 is 1000 centimetres spherical tank manufacture craft, it is characterized in that: the Technology for Heating Processing of the steel plate blank that the dolioform limb of described compacting is used is, the steel plate blank is advancing the stove heating below 300 ℃, insulation is 80 minutes when being heated to 700 ± 10 ℃ with≤180 ℃/hour heating rates, then be cooled to 〉=350 ℃, steel plate blank after the heat treatment is placed on the mould, blank holder compresses around the steel plate blank, patrix moves downward, so that the steel plate blank is clamp-oned in the mould circle of counterdie, guaranteeing the steel plate blank in the situation that upper die and lower die compress, with steel plate blank air cooling to room temperature.
3. diameter according to claim 1 is 1000 centimetres spherical tank manufacture craft, it is characterized in that: need annealing in process after the compacting of described upper and lower segment seal head, first upper and lower segment seal head is heated to 300 ℃ and be incubated 120 minutes, then be heated to 750 ℃ ± 10 ℃ and be incubated 150 minutes with≤100 ℃/hour speed, and then air cooling is to room temperature.
According to claim 1 and 2 or 3 described diameters be 1000 centimetres spherical tank manufacture craft, it is characterized in that: when described Site Welding adopts SMAW, satisfy following requirement: when spherical tank adopts a minute band to assemble, should be at vertical, the circumferential weld of each band of assembly platform welding, after nondestructive testing is qualified, be assembled into again integral body, then carry out the welding between each band; When spherical tank adopts the burst assembling, should weld by the principle of circumferential weld behind the first longitudinal joint.
5. diameter according to claim 4 is 1000 centimetres spherical tank manufacture craft, it is characterized in that: described SMAW is two-sided butt weld, the laggard row back gouging of one-sided welding.
6. diameter according to claim 5 is 1000 centimetres spherical tank manufacture craft, it is characterized in that: described back chipping is carbon arc gas back chipping, to guarantee one direct join of groove shape crushing channeling and worn carburized layer behind the back chipping, and adopt VT, MT or PT detection method to detect.
7. diameter according to claim 4 is 1000 centimetres spherical tank manufacture craft, it is characterized in that: during described welding, starting the arc end adopts and retreats the starting the arc of starting the arc method, receives the arc end arc crater is filled up, and the interlayer joint of multilayer welding staggers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505802.9A CN102974983B (en) | 2012-12-01 | 2012-12-01 | Process for manufacturing spherical tank with 1000cm diameter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505802.9A CN102974983B (en) | 2012-12-01 | 2012-12-01 | Process for manufacturing spherical tank with 1000cm diameter |
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| Publication Number | Publication Date |
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| CN102974983A true CN102974983A (en) | 2013-03-20 |
| CN102974983B CN102974983B (en) | 2015-06-10 |
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| CN201210505802.9A Expired - Fee Related CN102974983B (en) | 2012-12-01 | 2012-12-01 | Process for manufacturing spherical tank with 1000cm diameter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692155A (en) * | 2013-11-14 | 2014-04-02 | 常州蓝翼飞机装备制造有限公司 | Forming technology of aviation fire suppression bottle end socket |
| CN108723721A (en) * | 2018-06-11 | 2018-11-02 | 江阴中南重工有限公司 | Sandwich is molded the manufacturing method of threeway |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641257A (en) * | 2004-12-28 | 2005-07-20 | 上海市安装工程有限公司 | Low-temperature spherical tank for storing ethylene and its preparing method |
| CN101214601A (en) * | 2007-12-27 | 2008-07-09 | 中冶天工建设有限公司 | Spherical shell plate once cutting pressing technique |
-
2012
- 2012-12-01 CN CN201210505802.9A patent/CN102974983B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1641257A (en) * | 2004-12-28 | 2005-07-20 | 上海市安装工程有限公司 | Low-temperature spherical tank for storing ethylene and its preparing method |
| CN101214601A (en) * | 2007-12-27 | 2008-07-09 | 中冶天工建设有限公司 | Spherical shell plate once cutting pressing technique |
Non-Patent Citations (2)
| Title |
|---|
| 通用机械研究所等: "CF―62钢焊制球罐的制造工艺规程(草案)", 《压力容器》 * |
| 韩丽娟等: "不锈钢复合板球罐焊接方法", 《金属加工(热加工)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692155A (en) * | 2013-11-14 | 2014-04-02 | 常州蓝翼飞机装备制造有限公司 | Forming technology of aviation fire suppression bottle end socket |
| CN108723721A (en) * | 2018-06-11 | 2018-11-02 | 江阴中南重工有限公司 | Sandwich is molded the manufacturing method of threeway |
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| CN102974983B (en) | 2015-06-10 |
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