CN102059514A - Processing method of small-curvature and small-angle bent pipe - Google Patents
Processing method of small-curvature and small-angle bent pipe Download PDFInfo
- Publication number
- CN102059514A CN102059514A CN 201010556899 CN201010556899A CN102059514A CN 102059514 A CN102059514 A CN 102059514A CN 201010556899 CN201010556899 CN 201010556899 CN 201010556899 A CN201010556899 A CN 201010556899A CN 102059514 A CN102059514 A CN 102059514A
- Authority
- CN
- China
- Prior art keywords
- pipe
- small
- dried shrimp
- straight
- 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.)
- Granted
Links
Images
Landscapes
- Meat, Egg Or Seafood Products (AREA)
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
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 can not bend in existing bending machine.
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 section dried shrimp pipe is positioned toward both sides successively from middle; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, finish the integral body location of each straight section dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight section dried shrimp pipe;
E is welding on the fit-up gap between the described adjacent straight section dried shrimp pipe for each straight section dried shrimp pipe of integral body location, finishes between the adjacent straight section dried shrimp pipe to connect; Again the 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 described 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 the prior art, beneficial effect of the present invention is embodied in:
The present invention replaces arc section with many straight sections dried shrimp pipe, finishes small curve low-angle bend pipe by 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 schematic diagram among the present invention.
Fig. 2 is a light plate platform mark schematic diagram of the present invention.
Fig. 3 is each straight section dried shrimp pipe location schematic diagram among the present invention.
Fig. 4 welds schematic diagram for finishing between each straight section dried shrimp pipe among the present invention.
Number in 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 2 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 section 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, finish the integral body location of each straight section dried shrimp pipe on plate platform 2 according to this, form the fit-up gap between the adjacent straight section dried shrimp pipe;
E is for each straight section dried shrimp pipe of integral body location, welding on the fit-up gap between the adjacent straight section dried shrimp pipe, at first finish the welding of a side, the weld seam that digs dried shrimp pipe and plate platform spot welding place with carbon digs then, the dried shrimp pipe is stood up the fit-up gap of the other side of welding, and then finish overall welding; Again the weld seam corner angle are polished into rounding off at last.
In concrete the enforcement, 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 section dried shrimp pipe is positioned toward both sides successively from middle; During the location, aim at port lines with flat mouthful of end, and firm with plate platform spot welding, finish the integral body location of each straight section dried shrimp pipe on plate platform according to this, form the fit-up gap between the adjacent straight section dried shrimp pipe;
E, for each straight section dried shrimp pipe of integral body location, welding on the fit-up gap between the described adjacent straight section dried shrimp pipe, finish between the adjacent straight section dried shrimp pipe and connect; Again the 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 described step c, and the mark on plate platform is, at first presses the circular arc line, marks each straightway by Along ent again.
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 true CN102059514A (en) | 2011-05-18 |
CN102059514B 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) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN103978343A (en) * | 2014-04-17 | 2014-08-13 | 中信重工机械股份有限公司 | Method for processing material-feeding bent pipe for large grinder |
CN104028954A (en) * | 2014-01-07 | 2014-09-10 | 郑时华 | Manufacturing method of mold jacking pipe |
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 |
CN109477328A (en) * | 2016-07-07 | 2019-03-15 | 尼尔森灌溉公司 | The centrally-pivoted axle of modified cross-sectional diameter irrigates gooseneck |
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 |
CN117884848A (en) * | 2024-03-18 | 2024-04-16 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
Citations (5)
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 |
JPH0711837A (en) * | 1993-06-14 | 1995-01-13 | V Kann Rasmussen Holding As | Balance window operator |
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 |
-
2010
- 2010-11-24 CN CN 201010556899 patent/CN102059514B/en active Active
Patent Citations (5)
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 |
JPH0711837A (en) * | 1993-06-14 | 1995-01-13 | V Kann Rasmussen Holding As | Balance window operator |
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 |
Cited By (12)
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 |
CN103978343A (en) * | 2014-04-17 | 2014-08-13 | 中信重工机械股份有限公司 | Method for processing material-feeding bent pipe for large grinder |
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 |
CN109477328A (en) * | 2016-07-07 | 2019-03-15 | 尼尔森灌溉公司 | The centrally-pivoted axle of modified cross-sectional diameter irrigates gooseneck |
CN109477328B (en) * | 2016-07-07 | 2021-05-28 | 尼尔森灌溉公司 | Center pivot irrigation gooseneck with varying cross-sectional diameter |
US11085568B2 (en) | 2016-07-07 | 2021-08-10 | Nelson Irrigation Corporation | Center pivot irrigation gooseneck with varying 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 |
CN111088850B (en) * | 2019-12-31 | 2022-03-29 | 江苏沪宁钢机股份有限公司 | Horseshoe-shaped node and manufacturing method thereof |
CN117884848A (en) * | 2024-03-18 | 2024-04-16 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
CN117884848B (en) * | 2024-03-18 | 2024-05-07 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
Also Published As
Publication number | Publication date |
---|---|
CN102059514B (en) | 2012-05-23 |
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 | |
CN103722346B (en) | A kind of corrosion resistance metallurgical composite bimetal longitudinal submerged arc welded pipe and preparation method | |
CN103008999B (en) | Spiral seam submerged-arc welded pipe butt joint process | |
CN107263031A (en) | Cylinder is without pre-bending edge rolling moulding process | |
CN103551750B (en) | Welded tube and manufacture method thereof | |
CN102491011A (en) | Large recovered oil and gas tank | |
CN107081346A (en) | It is a kind of not wait the method that wall thickness arc makes large diameter steel pipe with two pieces | |
CN109695784B (en) | Nozzle throat section of cooling water tank insert | |
CN103286528B (en) | Processing technology for longitudinal-seam narrow-gap welding groove of thick-walled barrels | |
CN202368981U (en) | Large-scale recovered oil gas storage tank | |
CN106541252A (en) | Subway ventilation engineering cold-rolled steel sheet wind pipe construction method | |
CN102909523B (en) | Method for machining Y-shaped pipe | |
CN104439672A (en) | High frequency prewelding technology of longitudinal submerged arc welded pipe | |
CN218564618U (en) | Carbon steel forging pipe fitting | |
CN110748733A (en) | Concrete pump wear-resistant bent pipe with built-in bionic build-up welding spots and flow guide blocks and manufacturing method thereof | |
CN106041430A (en) | Auxiliary molding method for shrimp bend of panel | |
CN100457378C (en) | Orientation clamping board of the automatic welding equipment with a big elbow | |
CN205716080U (en) | A kind of stainless steel welding tube | |
CN109262205A (en) | Monocline roll system adapter tube manufacturing method | |
CN115095731A (en) | High-speed aerodyne expansion joint and manufacturing and assembling method thereof | |
CN104646800A (en) | Welding method for ship division pipe | |
CN208519019U (en) | A kind of docking structure of cast-steel pipe and low-alloy structural steel pipe | |
CN102922220A (en) | Making method of hawsepipe for single point mooring buoy main body | |
CN103286417A (en) | Method for welding steel cylinder vertical seam |
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 |