CN102040059B - Tank car manhole and production technology thereof - Google Patents
Tank car manhole and production technology thereof Download PDFInfo
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- CN102040059B CN102040059B CN2009102184403A CN200910218440A CN102040059B CN 102040059 B CN102040059 B CN 102040059B CN 2009102184403 A CN2009102184403 A CN 2009102184403A CN 200910218440 A CN200910218440 A CN 200910218440A CN 102040059 B CN102040059 B CN 102040059B
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- manhole
- tank car
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- tank body
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Abstract
The present invention relates to a tank car manhole structure and a production technology thereof; the invention provides a tank car manhole structure comprising a manhole neck, the manhole neck is arranged on the tank body and forms an integral structure together with the tank body. According to the tank car manhole structure and the production technology provided by the invention, welding is unnecessary during the manufacturing process so as to result in no welding defects and simple process; precise forming can be ensured by special tools; no welding test plate is required to be produced so as to reduce parts and save materials; to the tank body with height restriction, the manhole height can be flexibly reduced, which is favorable for increasing the diameter of the tank body; and the manhole formed by drawing and flanging forms an integral structure together with the tank body, which enables a good stability and solves the problem that the manhole is out of rround along the diameter direction.
Description
Technical field
The present invention relates to a kind of manhole structure of tank car, relate in particular to the technological process of a kind of tank car manhole structure and production thereof.
Background technology
Referring to Fig. 1 .1-1.4, the traditional manhole structure of tank car leaves a hole on tank body 10, and the manhole that welding is good is taken over 11 and inserted; Weld with tank body; Form T font weld seam, weld manhole flange 12 then, manhole adapter 11 is welded to connect with tank body 10; Form T font weld seam, there is following problem in this structure:
1, there is the abrupt change of cross-section, has higher stress concentration;
2, weld seam is longer, and welding deformation is big;
3, be easy to generate weld defect, cause leaking;
4, for the pressure container product, manhole is taken over weld seam and can seam inhomogeneity, needs to make test piece for welding.
On production technology; The technology of traditional processing tank car at first will be made manhole and take over 11, the series of steps below needing: manhole is taken over 11 shearing blankings, is dug groove, pressure head, round as a ball, group to, welding, cavetto, weld seam non-destructive test (pressure container product, aluminum alloy, stainless steel), with 12 groups of manhole flanges to, welding, weld seam non-destructive test (pressure container product, aluminum alloy, stainless steel are suitable for).Manhole flange 12 will pass through manhole flange forging blank, machine-shaping, three steps of check; In order to satisfy the reinforcement for openings requirement, generally all can add stiffening ring 13 structures, therefore also to make stiffening ring 13; Stiffening ring 13 cutting stocks, moulding, line, cutting, finished edge.After all making completion each several part is assembled, process is following: behind the tank body assembly welding, look for tank body top cross, longitudinal centerline, rule; Draw manhole assembling position line with model; Press line cutting manhole and tank body stack-mounted intersection; Machining hole edge groove; Tank body and manhole are taken over, the stiffening ring group is right; Welding → non-destructive test (pressure container product, aluminum alloy, stainless steel are suitable for), production technology is quite complicated, and materials, waste material are all many.
Summary of the invention
In order to solve the technical matters that exists in the background technology, the present invention proposes a kind of manhole structure of tank car
And production technology, this structure need not welding in manufacturing process, can not produce weld defect, the integrative-structure good stability of tank body and manhole, and technology is simple, practices thrift cost.
Technical solution of the present invention is: a kind of tank car manhole, and said tank car manhole comprises people's pore-throat, and said people's pore-throat is arranged on the tank body, and said people's pore-throat is that the manhole of holding successfully on the tank body is carried out drawing or flange formation.
Above-mentioned tank car manhole also comprises the manhole flange, said manhole flange and the welding of people's pore-throat end.
Above-mentioned tank car manhole also comprises the manhole seat rim, said manhole seat rim and the welding of people's pore-throat end.
Be the arc rounding off between above-mentioned people's pore-throat and the tank body.
A kind of production technology of tank car manhole, this production technology may further comprise the steps:
(1) on tank body, rules, opens pre-manufactured hole;
(2) edge in the hole of holding successfully is handled;
(3) manhole flanging forming district is carried out the partial flame preheating, preheating temperature is 200 ℃～450 ℃;
(4) through shell ring pull out the hole, the flange special tooling pulls out hole, flange to the manhole of holding successfully; Special tooling mainly by the shell ring positioning clamping device with pull out the hole, hemmer (containing mould) is formed;
(5) with machine up finishing flange oral area end face, with manhole flange or manhole seat rim group to welding.
Prefabricated hole size is to confirm according to the height of tank body material, thickness of slab, flange in the above-mentioned steps (1).
Processing method in the above-mentioned steps (2) be remove slag and burr, polish smooth, chamfered edge; Prevent that in turn-up process the flange oral area breaks.
Preheating temperature is confirmed according to tank body material, thickness of slab in the above-mentioned steps (3).
Above-mentioned production technology comprises that also step (6) carries out non-destructive test to the tank car manhole.
The diameter of pre-manufactured hole is 250mm～480mm in the above-mentioned steps (1).
Advantage of the present invention is:
1, people's pore-throat and tank body are integrated, need not welding, and technology is simple;
2, rounding off between people's pore-throat and tank body has been avoided the abrupt change of cross-section, and the stress concentration phenomenon has much improvement;
3, the tank interior smooth transition does not have projection, can satisfy the requirement of tank interior electrostatic prevention, the occasion that meets the demands and carry out aluminium-plated, spray corrosion-resistant steel, line with rubber, keep a public place clean etc. and to handle;
4, do not have weld seam between people's pore-throat and tank body, pull out hole, the assurance of flange special tooling through shell ring, moulding is accurate;
5, do not adopt welding manner between people's pore-throat and tank body, can not produce weld defect;
6, do not have weld seam between people's pore-throat and tank body, need not make test piece for welding, reduce part, save materials.
7, for tank body with limitation in height, can reduce the manhole height flexibly, help increasing the diameter of tank body;
8, the expense of using frock to make is low, is one-time investment, and cost of investment is little, and the input amplitude is little, and repeated use is saved the tank body manufacturing cost later on;
9, cancel manhole adapter, stiffening ring, practiced thrift manhole adapter, stiffening ring raw MAT'L and manufacturing cycle and cost; The manhole pre-manufactured hole is much little than the cutting hole of manhole, has reduced the generation of waste material;
10, can carry out machine up by the upper surface of pulling out the people aperture that hole flanging forms, and the roughness of end face roughness ratio shearing blanking is high, then more is prone to ensure assembly clearance and welding quality with the manhole flange;
11, by pulling out the structure that people aperture that hole flanging forms and tank body are one, good stability has solved the round problem of manhole footpath diameter direction.
Description of drawings
Fig. 1 .1-Fig. 1 .4 is a prior art constructions scheme drawing of the present invention;
Fig. 2 .1 is the structural representation of embodiments of the invention one;
Fig. 2 .2 is the structural representation of embodiments of the invention two.
The specific embodiment
Referring to Fig. 2 .1, the tank car manhole structure that the present invention proposes comprises tank body 1, manhole flange 2, people's pore-throat 3, and tank body 1 is the part of tank car; Open an aperture on the tank body, add and be affixed on the special tooling, through drawing, flanging process, the part material that needs is formed people's pore-throat 3 pulls out, and through finishing, finished edge is again with 2 welding of manhole flange; People's pore-throat 3 is parts of tank body 1, and both are integrative-structures.
Another embodiment of the present invention is referring to Fig. 2 .2, and tank body 1 drawing according to the method described above, flange, process are repaired finished edge; Substitute the manhole flange with manhole seat rim 4, manhole seat rim 4 itself has certain height, can substitute the some people pore-throat; Can be as required in making can bodies 1; Reduce the height of drawing, flange, tank body 1 welds with manhole seat rim 4 behind the finished edge through finishing; The tank car manhole structure that the present invention proposes can reduce the manhole height flexibly for the tank body with limitation in height, help increasing the diameter of tank body;
The present invention proposes a kind of manhole structure's production technology, this production technology may further comprise the steps:
(1) on tank body, rule, open pre-manufactured hole, according to the material of tank body, the thickness of slab and the flange height of tank body, confirm prefabricated hole size, the diameter of general pre-manufactured hole is 250mm～480mm; When material is 5052, thickness of slab is 24mm, and during flange height h=50mm, the diameter of pre-manufactured hole is 385 ± 50mm; When material is Q345R,
Thickness of slab is 24mm, and during flange height h=50mm, the diameter of pre-manufactured hole is 400 ± 50mm; When flange height h=75mm, the diameter of pre-manufactured hole is 350 ± 50mm.
(2) to the edge in the hole of holding successfully remove slag, burr, polish smooth, some processing such as chamfered edge, prevent that in turn-up process the flange oral area breaks;
(3) manhole is carried out local preheating,, select people's bore portion local preheat temperature according to the material of tank body, the thickness of slab and the flange height of tank body; General preheating temperature is 200 ℃～450 ℃; This measure mainly is in order to make the flange manhole in turn-up process, and the material forming performance is good, and arc transition is slick and sly, attractive in appearance, flawless; When material was 5052, the relation of prefabricated temperature and thickness of slab was little, was 300～400 ℃; When material is Q345R, when thickness of slab was 24mm, prefabricated temperature was 350～450 ℃; When thickness of slab was 18mm, prefabricated temperature was 300～400 ℃.
(4) through shell ring pull out the hole, the flange special tooling pulls out hole, flange to the manhole of holding successfully; Special tooling mainly by the shell ring positioning clamping device with pull out the hole, hemmer (containing mould) is formed;
(5) with machine up finishing flange oral area end face, use large-scale face miller processing, finishing flange oral area end face, pressure container, aluminum alloy, stainless steel product generally also need finished edge.Afterwards with make good manhole flange group to welding.
(6) the tank car manhole is carried out non-destructive test, this detection is applicable to the tank car of pressure container product, aluminum alloy, stainless steel.
Manhole flange manufacturing process: manhole flange forging blank at first, then machine-shaping (aluminum alloy material upper surface semifinished working) is tested at last.
People's pore-throat and tank body are integrated among the present invention, need not welding, and technology is simple, can not produce weld defect; Guarantee that through special tooling moulding is accurate; Need not make test piece for welding yet, reduce part, save materials.Cancel manhole adapter, stiffening ring, practiced thrift manhole adapter, stiffening ring raw MAT'L and manufacturing cycle and cost; The manhole pre-manufactured hole is much little than the cutting hole of manhole, has reduced the generation of waste material.In addition, the present invention is widely used, and goes for the various tank car structures of carbon steel, aluminum alloy, stainless steel.
Claims (10)
1. tank car manhole, it is characterized in that: said tank car manhole comprises people's pore-throat, and said people's pore-throat is arranged on the tank body, and said people's pore-throat is that the manhole of holding successfully on the tank body is carried out drawing or flange forms.
2. tank car manhole according to claim 1 is characterized in that: said tank car manhole also comprises the manhole flange, said manhole flange and the welding of people's pore-throat end.
3. tank car manhole according to claim 1 is characterized in that: said tank car manhole also comprises the manhole seat rim, said manhole seat rim and the welding of people's pore-throat end.
4. according to claim 1 or 2 or 3 described tank car manholes, it is characterized in that: be the arc rounding off between said people's pore-throat and the tank body.
5. the production technology of a tank car manhole, it is characterized in that: this production technology may further comprise the steps:
(1) on tank body, rules, opens pre-manufactured hole;
(2) edge in the hole of holding successfully is handled;
(3) manhole flanging forming district is carried out the partial flame preheating, preheating temperature is 200 ℃～450 ℃;
(4) through shell ring pull out the hole, the flange special tooling pulls out hole, flange to the manhole of holding successfully;
(5) with machine up finishing flange oral area end face, with manhole flange or manhole seat rim group to welding.
6. the production technology of tank car manhole according to claim 5 is characterized in that: prefabricated hole size is to confirm according to the height of tank body material, thickness of slab, flange in the said step (1).
7. the production technology of tank car manhole according to claim 5 is characterized in that: the processing method in the said step (2) be remove slag and burr, polish smooth, chamfered edge; Prevent that in turn-up process the flange oral area breaks.
8. the production technology of tank car manhole according to claim 5 is characterized in that: preheating temperature is to confirm according to tank body material, thickness of slab in the said step (3).
9. according to claim 5 or 6 or the production technology of 7 or 8 described tank car manholes, it is characterized in that: said production technology comprises that also step (6) carries out non-destructive test to the tank car manhole.
10. according to the production technology of claim 5 or 6 described tank car manholes, it is characterized in that: the diameter of pre-manufactured hole is 250mm～480mm in the said step (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102184403A CN102040059B (en) | 2009-10-21 | 2009-10-21 | Tank car manhole and production technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102184403A CN102040059B (en) | 2009-10-21 | 2009-10-21 | Tank car manhole and production technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102040059A CN102040059A (en) | 2011-05-04 |
| CN102040059B true CN102040059B (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102184403A Expired - Fee Related CN102040059B (en) | 2009-10-21 | 2009-10-21 | Tank car manhole and production technology thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107052610B (en) * | 2017-06-14 | 2022-08-19 | 广州广重企业集团有限公司 | Hole opening structure and hole opening method on large-diameter thick-wall container shell |
| CN110170572B (en) * | 2018-05-07 | 2021-06-22 | 林信志 | Water tower forming method and water tower structure manufactured by applying same |
| CN109048225B (en) * | 2018-09-06 | 2020-08-28 | 黄骅市润宇汽车配件有限公司 | Manhole processing technology of liquid storage tank |
| CN109931827A (en) * | 2019-04-24 | 2019-06-25 | 浙江路捷顺汽车制造有限公司 | A kind of anti-explosion tank without turnery processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883626A (en) * | 1987-03-24 | 1989-11-28 | Cardinal Tank Corp. | Method of molding a manhole frame for spherical tanks |
| CN101011717A (en) * | 2006-11-30 | 2007-08-08 | 上海吴泾化工有限公司 | Flanging process of saddle type lining and die |
| CN201525606U (en) * | 2009-10-21 | 2010-07-14 | 西安轨道交通装备有限责任公司 | Tanker manhole |
-
2009
- 2009-10-21 CN CN2009102184403A patent/CN102040059B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4883626A (en) * | 1987-03-24 | 1989-11-28 | Cardinal Tank Corp. | Method of molding a manhole frame for spherical tanks |
| CN101011717A (en) * | 2006-11-30 | 2007-08-08 | 上海吴泾化工有限公司 | Flanging process of saddle type lining and die |
| CN201525606U (en) * | 2009-10-21 | 2010-07-14 | 西安轨道交通装备有限责任公司 | Tanker manhole |
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| Publication number | Publication date |
|---|---|
| CN102040059A (en) | 2011-05-04 |
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Address after: Three Town Weiyang District 710086 Shaanxi city of Xi'an Province Patentee after: CRRC XI'AN Co.,Ltd. Address before: 710086 Xi'an City, Shaanxi Province town of three Patentee before: XI' AN RAILWAY TRANSPORTATION EQUIPMENT Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20120502 Termination date: 20211021 |