CN102059514B - Processing method of small-curvature and small-angle bent pipe - Google Patents

Processing method of small-curvature and small-angle bent pipe Download PDF

Info

Publication number
CN102059514B
CN102059514B CN 201010556899 CN201010556899A CN102059514B CN 102059514 B CN102059514 B CN 102059514B CN 201010556899 CN201010556899 CN 201010556899 CN 201010556899 A CN201010556899 A CN 201010556899A CN 102059514 B CN102059514 B CN 102059514B
Authority
CN
China
Prior art keywords
pipe
straight length
small
dried shrimp
angle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201010556899
Other languages
Chinese (zh)
Other versions
CN102059514A (en
Inventor
魏朝波
曹玉林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Fuhuang Steel Structure Co Ltd
Original Assignee
Anhui Fuhuang Steel Structure Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Fuhuang Steel Structure Co Ltd filed Critical Anhui Fuhuang Steel Structure Co Ltd
Priority to CN 201010556899 priority Critical patent/CN102059514B/en
Publication of CN102059514A publication Critical patent/CN102059514A/en
Application granted granted Critical
Publication of CN102059514B publication Critical patent/CN102059514B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a processing method of a small-curvature and small-angle bent pipe, which is characterized by comprising the following steps of: firstly replacing each straight pipe-section shrimp pipe by a circular-arc section, and segmenting the processed bent pipe into straight-pipe sections; marking a projection center line a, an outer side contour line b1, an inner side contour line b2 and a port line c of each straight pipe-section shrimp pipe for assembling the bent pip by using the processed member on a steel plate platform; sequentially positioning each straight pipe-section shrimp pipe from middle to both sides by using an angle rule; finally welding the neighboring straight pipe-section shrimp pipes in the integrally positioned straight pipe-section shrimp pipes to accomplish the connection between the neighboring straight pipe-section shrimp pipes; and then polishing edges of welding lines into smooth transition. In the method, the plurality of straight pipe-section shrimp pipes replace the circular-arc sections, the assembly of the small-curvature and small-angle bent pipe is accomplished by cutting, scribing and positioning, therefore the method is simple and rapid, and the processed small-curvature and small-angle bent pipe is especially suitable for serving as a transition section at the crossed position of two small-angle steel pipes.

Description

The processing method of small curve low-angle bend pipe
Technical field
The present invention relates to a kind of processing method of small curve low-angle bend pipe.
Background technology
As shown in Figure 1, the small curve low-angle bend pipe in the steel member is meant that generally material is Q345B and following grade, radius of curvature R≤500mm, angle≤50 °, the pipe fitting that in existing bending machine, can not bend.
Existing pipe bending machine can only be processed the bend pipe of radius of curvature R >=1500mm, can't carry out the processing of small curve low-angle bend pipe; Customization must become steel-casting with molten steel casting, but this method cycle is long, expense is high.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of processing method of small curve low-angle bend pipe is provided so that in the specific occasion for radius of curvature R≤500mm, the processing of the bend pipe of angle≤50 ° is more quick, low-cost.
The present invention adopts following technical scheme for the technical solution problem:
The design feature of the processing method of small curve low-angle bend pipe of the present invention is to carry out as follows:
A, replace arc section with each straight length dried shrimp pipe, processed bend pipe segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, on plate platform, mark projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece;
D, utilize angle square that each straight length dried shrimp pipe is positioned toward both sides from middle successively; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E is welding on the fit-up gap between the said adjacent straight length dried shrimp pipe for each straight length dried shrimp pipe of integral body location, accomplishes between the adjacent straight length dried shrimp pipe to connect; Again weld seam corner angle are polished into rounding off.
The characteristics of the processing method of small curve low-angle bend pipe of the present invention also are among the said step c, and the mark on plate platform is, at first press the circular arc line, mark each straightway by Along ent again.
Compared with present technology, beneficial effect of the present invention is embodied in:
The present invention replaces arc section with many straight lengths dried shrimp pipe, accomplishes small curve low-angle bend pipe through cutting, line and location assembling, and the inventive method is simple, quick, is particularly suitable for as two low-angle steel pipe intersection changeover portions.
Description of drawings
Fig. 1 is work piece sketch map among the present invention.
Fig. 2 is a light plate platform mark sketch map of the present invention.
Fig. 3 is each straight length dried shrimp pipe location sketch map among the present invention.
Fig. 4 welds sketch map for accomplishing between each straight length dried shrimp pipe among the present invention.
Label among the figure: 1 processed bend pipe, 2 plate platform, a projected centre lines, b1 outboard wheel profile, b2 nearside wheel profile, c port lines, 3 angle squares.
The specific embodiment
The processing method of small curve low-angle bend pipe is to carry out as follows in the present embodiment:
1, replace arc section with each straight length dried shrimp pipe, processed bend pipe 1 segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, as shown in Figure 2 on plate platform 2, marks projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece; Specifically the mark on plate platform is, at first presses the circular arc line, marks each straightway by Along ent again; The relevant parameter of processed bend pipe 1 shown in Figure 2: R200 is that dried shrimp center line curvature, H are that the location height of right output port, location that L is right output port are wide, the dried shrimp angle is that 35 °, external diameter are that 203mm, wall thickness are 12mm;
D, utilize 3 pairs of each straight length dried shrimp pipes of angle square to position successively toward both sides from middle; During the location, aim at port lines with flat mouthful of end, and firm with plate platform 2 spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform 2 according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E is for each straight length dried shrimp pipe of integral body location; Welding on the fit-up gap between the adjacent straight length dried shrimp pipe; At first accomplish the welding of a side; The weld seam that digs dried shrimp pipe and plate platform spot welding place with carbon then digs, and the dried shrimp pipe is stood up the fit-up gap of the other side of welding, and then accomplishes overall welding; Again weld seam corner angle are polished into rounding off at last.
In the practical implementation, should note:
1, get many straight lengths, corner angle are just more little so as far as possible, cross and get over slyness;
2, guarantee the internal orifice of each straight length, promptly the minor face of straight length also has 2 centimeters length after cutting periphery groove.

Claims (2)

1. the processing method of small curve low-angle bend pipe is characterized in that carrying out as follows:
A, replace arc section with each straight length dried shrimp pipe, processed bend pipe segmentation is drawn materials is each straight length;
B, for each straight length, the length of cutting away 2mm at left end is as the fit-up gap, and forms flat mouthful of end of left end; Right-hand member cutting at each straight section forms 35 ° of periphery grooves;
C, on plate platform, mark projected centre lines a, outboard wheel profile b1, nearside wheel profile b2 and the port lines c of each the straight length dried shrimp pipe that is used to assemble bend pipe by work piece;
D, utilize angle square that each straight length dried shrimp pipe is positioned toward both sides from middle successively; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, accomplish the integral body location of each straight length dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight length dried shrimp pipe;
E, for each straight length dried shrimp pipe of integral body location, welding on the fit-up gap between the said adjacent straight length dried shrimp pipe, accomplish between the adjacent straight length dried shrimp pipe and connect; Again weld seam corner angle are polished into rounding off.
2. the processing method of small curve low-angle bend pipe according to claim 1 is characterized in that among the said step c, and the mark on plate platform is, at first presses the circular arc line, marks each straightway by Along ent again.
CN 201010556899 2010-11-24 2010-11-24 Processing method of small-curvature and small-angle bent pipe Active CN102059514B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010556899 CN102059514B (en) 2010-11-24 2010-11-24 Processing method of small-curvature and small-angle bent pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010556899 CN102059514B (en) 2010-11-24 2010-11-24 Processing method of small-curvature and small-angle bent pipe

Publications (2)

Publication Number Publication Date
CN102059514A CN102059514A (en) 2011-05-18
CN102059514B true CN102059514B (en) 2012-05-23

Family

ID=43995114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010556899 Active CN102059514B (en) 2010-11-24 2010-11-24 Processing method of small-curvature and small-angle bent pipe

Country Status (1)

Country Link
CN (1) CN102059514B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104028954A (en) * 2014-01-07 2014-09-10 郑时华 Manufacturing method of mold jacking pipe
CN103692171A (en) * 2014-01-10 2014-04-02 点夺机电工程江苏有限公司 Making method of shrimp elbow
CN103978343B (en) * 2014-04-17 2016-08-24 中信重工机械股份有限公司 A kind of processing method of large-sized grinder feed bend pipe
AT520617A5 (en) * 2016-07-07 2020-05-15 Nelson Irrigation Corp Circular irrigation gooseneck with variable cross-sectional diameters
CN109014644A (en) * 2018-09-30 2018-12-18 中船黄埔文冲船舶有限公司 A kind of runner elbow-making method
CN111088850A (en) * 2019-12-31 2020-05-01 江苏沪宁钢机股份有限公司 Horseshoe-shaped node and manufacturing method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU811049A1 (en) * 1979-04-16 1981-03-07 Уральский Научно-Исследовательскийинститут Трубной Промышленности Method of production of pipeline elbow with wear-resistant inner coating
EP1034063B1 (en) * 1997-10-30 2002-12-11 Volvo Aero Corporation A method for producing rotational-symmetrical articles of sheet metal with double curved surface and varying thickness of material
CN101332600A (en) * 2007-06-29 2008-12-31 鞍钢集团矿业公司 Blanking method of multi-node knee
CN101698275A (en) * 2009-10-30 2010-04-28 四川石油天然气建设工程有限责任公司 Mold manufacturing method for high-acidity gas-field elbow heat insulation blocks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442879A (en) * 1993-06-14 1995-08-22 V. Kann Rasmussen Industri A/S Counterbalanced window operator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU811049A1 (en) * 1979-04-16 1981-03-07 Уральский Научно-Исследовательскийинститут Трубной Промышленности Method of production of pipeline elbow with wear-resistant inner coating
EP1034063B1 (en) * 1997-10-30 2002-12-11 Volvo Aero Corporation A method for producing rotational-symmetrical articles of sheet metal with double curved surface and varying thickness of material
CN101332600A (en) * 2007-06-29 2008-12-31 鞍钢集团矿业公司 Blanking method of multi-node knee
CN101698275A (en) * 2009-10-30 2010-04-28 四川石油天然气建设工程有限责任公司 Mold manufacturing method for high-acidity gas-field elbow heat insulation blocks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开平7-11837A 1995.05.09

Also Published As

Publication number Publication date
CN102059514A (en) 2011-05-18

Similar Documents

Publication Publication Date Title
CN102059514B (en) Processing method of small-curvature and small-angle bent pipe
CN103273281B (en) A kind of construction technology of thin-wall barrel
CN103008999B (en) Spiral seam submerged-arc welded pipe butt joint process
CN103551750B (en) Welded tube and manufacture method thereof
CN102423825A (en) On-site splicing process of large-sized vacuum flange
CN103692171A (en) Making method of shrimp elbow
CN102491011A (en) Large recovered oil and gas tank
CN102489941A (en) Method for manufacturing metal elbow
CN104439672A (en) High frequency prewelding technology of longitudinal submerged arc welded pipe
CN102909523B (en) Method for machining Y-shaped pipe
CN203880246U (en) Circular duct welded through strip plate and used for automobile painting workshop
CN103286528B (en) Processing technology for longitudinal-seam narrow-gap welding groove of thick-walled barrels
CN202368981U (en) Large-scale recovered oil gas storage tank
CN103286417B (en) Method for welding steel cylinder vertical seam
WO2021027088A1 (en) Heat exchange device and manufacturing method therefor
CN202420279U (en) Round head of radiator
CN202130744U (en) Oil tank body formed by splicing and welding longitudinal seams
CN100457378C (en) Orientation clamping board of the automatic welding equipment with a big elbow
CN203772103U (en) Coil fixing structure of positive displacement heat exchanger
CN104930897A (en) Bidirectional internal bend heat radiating pipe
CN204449678U (en) A kind of tube sheet grafting welding point
CN201547443U (en) Small bending radius elbow pipe fitting with straight pipe section
CN106541252A (en) Subway ventilation engineering cold-rolled steel sheet wind pipe construction method
CN201116643Y (en) Rectangular round angle corrugated pipe
CN205716387U (en) A kind of multifunctional stainless steel welded pipe

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant