CN108581378A - A kind of production method of hull elbow connection pipe - Google Patents
A kind of production method of hull elbow connection pipe Download PDFInfo
- Publication number
- CN108581378A CN108581378A CN201810330734.4A CN201810330734A CN108581378A CN 108581378 A CN108581378 A CN 108581378A CN 201810330734 A CN201810330734 A CN 201810330734A CN 108581378 A CN108581378 A CN 108581378A
- Authority
- CN
- China
- Prior art keywords
- connection pipe
- elbow connection
- pipe unit
- elbow
- hull
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The present invention provides a kind of production methods of hull elbow connection pipe, by the basic parameter value of each elbow connection pipe unit of computer solving, and the drafting of engineering drawing are carried out to each elbow connection pipe unit；Two-dimensional development is carried out to each elbow connection pipe unit, and generates the two-dimensional development figure of each elbow connection pipe unit；Using computer lofting technology, solid modelling is carried out to elbow connection pipe, setting-out is carried out to elbow connection pipe, draws the part drawing after each elbow connection pipe unit setting-out；Carry out jacking is carried out to the part drawing after elbow connection pipe unit setting-out, and exports machining information and clear related processing parameters；According to the machining information and related processing parameters of jacking figure, cutting stock is carried out to plate to be processed, forms the entity of elbow connection pipe unit；The entity of each elbow connection pipe unit after cutting is rolled, and the entity of each elbow connection pipe unit after rolling assembles, and completes the processing of elbow connection pipe.
Description
Technical field
The present invention relates to a kind of piping production method more particularly to a kind of production methods of hull elbow connection pipe.
Background technology
In the prior art, in the manufacturing process to hull package, there are some hull package outer diameter is larger and (usually exist
Between 300mm~1200mm), the making of the larger hull package of outer diameter is more demanding, but the hull package permission that outer diameter is larger
It is stitched in the presence of in.The cost of the larger hull package of outer diameter is higher and fabrication cycle is longer, the bending of the larger hull package of outer diameter
Part generally use hull elbow connection pipe is spliced.
The production process of hull elbow connection pipe in the prior art is mainly：Plate cutting, roll in pipe, weldering seam,
Parameter that is round as a ball, calculating hull elbow connection pipe, setting-out hull elbow connection pipe, cutting hull elbow connection on hull package
The multiple working procedures such as pipe, hull elbow connection pipe bevel, assembled hull elbow connection pipe, butt welding weld seam and polishing.It is above-mentioned
The process of hull elbow connection pipe is made mainly based on artificial, less efficient, unstable quality.It is especially curved in cutting hull
When head connecting tube and hull elbow connection pipe bevel carry out this two procedures, since hull elbow connection pipe caliber is larger, add
Work person can only cut lamp or the plasma cutting gun hand cut on hull package by oxy-acetylene, and speed is slow, slot out-of-flatness,
So that the fabrication cycle of the hull elbow connection pipe made is longer and second-rate, while also influencing school dress size and weld seam matter
Amount.
Invention content
Based on this, the purpose of the present invention is to provide a kind of production methods of hull elbow connection pipe, to solve existing skill
The longer and second-rate problem of hull elbow connection pipe fabrication cycle in art.
The technical scheme is that：A kind of production method of hull elbow connection pipe, includes the following steps：
S1, be made up of computer solving the elbow connection pipe each elbow connection pipe unit basic parameter value,
And the drafting of engineering drawing is carried out to each elbow connection pipe unit；
S2, two-dimensional development is carried out to each elbow connection pipe unit, and generates each elbow connection pipe unit
Two-dimensional development figure；
S3, each elbow connection pipe is drawn to elbow connection pipe progress setting-out using computer lofting technology
Part drawing after unit setting-out；
S4, jacking is carried out to the part drawing after the elbow connection pipe unit setting-out, and exports machining information；
S5, according to the machining information and related processing parameters of the jacking figure, cutting stock, shape are carried out to plate to be processed
At the entity of the elbow connection pipe unit；
S6, the entity of each elbow connection pipe unit after being cut in step S5 is rolled, and will rolled
The entity of each elbow connection pipe unit afterwards is assembled.
Optionally, in the step S1, the basic parameter value of each elbow connection pipe unit include structural parameters, by
Power situation, form dimension, location dimension and overall dimension.
Optionally, the step S1 further include the form dimension to each elbow connection pipe unit, location dimension and
Overall dimension is labeled.
Optionally, in the step S5, the plate to be processed carries out cutting stock by cutter device.
Optionally, the cutter device is numerical control cutting machine.
Optionally, in the step S6, by the entity of each elbow connection pipe unit after cutting by rolling dress
It sets and is rolled, make the shape crimped of the entity of the elbow connection pipe unit at tubular.
Optionally, in the step S6, by being welded to connect between the elbow connection pipe unit of each tubular.
Optionally, in the step S5, the machining information includes the cutting sequence of the elbow connection pipe unit, places
Face and groove type.
Implement the embodiment of the present invention, has the advantages that：
The production method of the hull elbow connection pipe of the present invention forms each curved of elbow connection pipe by computer solving
The basic parameter value of head connection pipe unit, improves the efficiency for solving elbow connection pipe unit basic parameter value, saves solution
The time of elbow connection pipe unit basic parameter value, and convenient for the drafting of elbow connection pipe element project figure；By connecting to elbow
Take over carry out two-dimensional development, consequently facilitating choosing the type of plate to be processed；By being carried out in a computer to elbow connection pipe
Solid modelling carries out setting-out to elbow connection pipe and draws the part drawing after elbow connection pipe unit setting-out, entire curved as a result,
The setting-out of head connecting tube is to carry out in a computer, convenient for the setting out data of very intuitive collocation elbow connection pipe, is formed curved
The whole computer data of head connecting tube setting-out process；By being designed jacking to the part drawing after elbow connection pipe setting-out
Figure improves the processing efficiency to elbow connection pipe so as to allow processor convenient for understanding machining information；By to plate to be processed
It carries out cutting stock and is formed by elbow connection pipe element entity since plate to be processed is to be processed in the plane
Section mouth it is more smooth, Angular Dimension is more accurate so that the assembled quality and welding quality of elbow connection pipe obtain further
It improves；Each elbow connection by being rolled to each elbow connection pipe element entity after cutting, and after rolling
Pipe unit entity carries out assembly, it is therefore not necessary to additionally increase process allowance.To sum up, the making side of this hull elbow connection pipe
Method is related to 6 method and steps, and middle elbow connection pipe production method is related to a method and step more than 10 compared with the prior art, therefore,
The present invention has simplified the production process of elbow connection pipe, and the manufacture difficulty of elbow connection pipe is made to substantially reduce, and reduces construction
Working hour can effectively reduce the use costs such as kinetic energy and place.
Description of the drawings
Fig. 1 is the flow chart of the production method of the hull elbow connection pipe of the present invention.
Fig. 2 is the corresponding structural schematic diagrams of step S1 of the production method of the hull elbow connection pipe of the present invention.
Fig. 3 is the corresponding structural schematic diagrams of step S2 of the production method of the hull elbow connection pipe of the present invention.
Fig. 4 is the corresponding structural schematic diagrams of step S3 of the production method of the hull elbow connection pipe of the present invention.
Fig. 5 is the corresponding structural schematic diagrams of step S5 of the production method of the hull elbow connection pipe of the present invention.
Fig. 6 is the corresponding structural schematic diagrams of step S6 of the production method of the hull elbow connection pipe of the present invention.
Reference sign：
1, elbow connection pipe；11, the first elbow connection pipe unit；12, the second elbow connection pipe unit；13, third elbow
Connect pipe unit；2, the first groove；3, the second groove；4, third groove；5, the 4th groove；6, plate to be processed.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
As shown in figs. 1 to 6, a kind of production method for hull elbow connection pipe that the embodiment of the present invention is provided, including with
Lower step：
S1, by computer solving form elbow connection pipe 1 each elbow connection pipe unit basic parameter value, and
The drafting of engineering drawing is carried out to each elbow connection pipe unit；
S2, two-dimensional development is carried out to each elbow connection pipe unit, and generates the two-dimentional exhibition of each elbow connection pipe unit
Open figure；
S3, is drawn by each elbow connection pipe unit and is put for the progress setting-out of elbow connection pipe 1 using computer lofting technology
Part drawing after sample；
S4, jacking is carried out to the part drawing after elbow connection pipe unit setting-out, and exports machining information；
S5, machining information and related processing parameters according to jacking figure carry out cutting stock to plate 6 to be processed, are formed
The entity of elbow connection pipe unit；
S6, the entity of each elbow connection pipe unit after being cut in step S5 is rolled, and after rolling
The entity of each elbow connection pipe unit is assembled.
Based on above-mentioned setting, the production method of hull elbow connection pipe of the invention forms elbow by computer solving
The basic parameter value of each elbow connection pipe unit of connecting tube 1 improves and solves elbow connection pipe unit basic parameter value
Efficiency saves the time for solving elbow connection pipe unit basic parameter value, and painting convenient for elbow connection pipe element project figure
System；By carrying out two-dimensional development to elbow connection pipe 1, consequently facilitating choosing the type of plate 6 to be processed；By in a computer
Solid modelling is carried out to elbow connection pipe 1, after the progress setting-out of elbow connection pipe 1 and drawing elbow connection pipe unit setting-out
Part drawing, wherein setting-out refers to connecting to form elbow using the two-dimensional development figure of elbow connection pipe 1 as the section in certain path
The 3-D view of take over 1, the setting-out of entire elbow connection pipe 1 as a result, is to carry out in a computer, is convenient for very intuitive collocation
The setting out data of elbow connection pipe 1 forms the whole computer data of 1 setting-out process of elbow connection pipe, and further, whole
The setting-out of a elbow connection pipe 1 is completed in plane process, has simplified the manufacturing process of elbow connection pipe 1；By connecting to elbow
Part drawing after 1 setting-out of take over is designed jacking figure, so as to allow processor convenient for understanding machining information, improves and connects to elbow
The processing efficiency of take over 1, wherein jacking figure refers to that machining information is guided out on part on the part drawing after setting-out, so as to
Processor is processed part, to achieve the purpose that material-saving saving of labor；By carrying out cutting stock to plate 6 to be processed, by
It is to be processed in the plane, therefore the section mouth for being formed by elbow connection pipe element entity is more smooth in plate 6 to be processed, angle
It is more accurate to spend size so that the assembled quality and welding quality of elbow connection pipe 1 are further improved；By to cutting
Each elbow connection pipe element entity afterwards is rolled, and each elbow connection pipe element entity after rolling is spelled
Dress, it is therefore not necessary to additionally increase process allowance.To sum up, the production method of this hull elbow connection pipe is related to 6 method steps
Suddenly, middle 1 production method of elbow connection pipe is related to a method and step more than 10 compared with the prior art, and therefore, the present invention has simplified curved
The production process of head connecting tube 1, makes the manufacture difficulty of elbow connection pipe 1 substantially reduce, and reduces construction working hour, can effectively drop
The low use costs such as kinetic energy and place.
In the present embodiment, as illustrated in fig. 1 and 2, in step S1, the basic parameter value of each elbow connection pipe unit includes knot
Structure parameter, stressing conditions, form dimension, location dimension and overall dimension are convenient for determine the parameter value of elbow connection pipe 1
The processing of elbow connection pipe 1.
In the present embodiment, as illustrated in fig. 1 and 2, step S1 further includes to the form dimension of each elbow connection pipe unit, fixed
Position size and overall dimension are labeled, so as to the selection of 6 type of plate to be processed, to improve the effect of whole process
Rate.
In the present embodiment, as described in figures 1 and 5, in step S5, plate 6 to be processed carries out cutting stock by cutter device,
So as to the formation of each elbow connection pipe unit.Specifically, plate 6 to be processed is steel plate, the intensity and thickness of steel plate are higher, fit
It shares in connection hull package.
In the present embodiment, as described in figures 1 and 5, in order to further increase the effect that each elbow connection pipe unit is formed, step
In rapid S5, cutter device is numerical control cutting machine.Specifically, the elbow connection pipe 1 of the embodiment of the present invention is by the first elbow connection pipe
Unit 11, the second elbow connection pipe unit 12 and third elbow connection pipe unit 13 form, according to the first elbow connection pipe unit
11, the size of the second elbow connection pipe unit 12 and third elbow connection pipe unit 13, processor can pass through Numerical control cutting
Machine is cut on plate 6 to be processed, the both sides of the first elbow connection pipe unit 11, the second elbow connection pipe unit 12 two
Side and the both sides of third elbow connection pipe unit 13 cut into arc-shaped, and numerical control cutting machine pair with numerical control cutting machine respectively
The groove of one elbow connection pipe unit 11, the second elbow connection pipe unit 12 and third elbow connection pipe unit 13 is processed,
So as to mutual between the first elbow connection pipe unit 11, the second elbow connection pipe unit 12 and third elbow connection pipe unit 13
Connection, as a result, cuts the shape of each elbow connection pipe unit by numerical control cutting machine, connects to form each elbow
The groove and shape of take over unit make, and eliminate and are processed to the shape of each elbow connection pipe unit with manpower so that
The manufacture difficulty of elbow connection pipe unit declines, further, each elbow connection pipe unit of the present embodiment is in plane work
It is carried out in sequence, to improve the easy making process of each elbow connection pipe unit.
In the present embodiment, as shown in figs. 1 and 6, in order to further increase the effect that rolls of elbow connection pipe unit, step S6
In, the entity of each elbow connection pipe unit after cutting is rolled by rolling device, makes elbow connection pipe unit
The shape crimped of entity is at tubular.Specifically, rolling device is rolling machine.The both ends crimped of elbow connection pipe unit is at tubular
Afterwards, processor can be stitched in the both ends junction of elbow connection pipe unit by welding in formation, to each elbow connection pipe list
Member is not easy to stretch after forming tubular.
In the present embodiment, as described in figures 1 and 5, in order to further increase the processing effect of elbow connection pipe unit, step S5
In, machining information includes cutting sequence, placed side and the groove type of elbow connection pipe unit.According to each elbow connection pipe list
The cutting sequence of member, determines location information and shape information of each elbow connection pipe unit in plate 6 to be processed；By true
Determine placed side, elbow connection pipe unit can be fixed；By determining groove type, each elbow connection pipe unit can be further strengthened
Between connection tightness, wherein groove type can be V-type or Y types, and processor can select as needed, this reality
Example is applied not to be limited.
In the present embodiment, as shown in figs. 1 and 6, in order to further increase the elbow connection pipe list of each tubular after rolling
Connection tightness between member, in step S6, by being welded to connect between the elbow connection pipe unit of each tubular.Specifically,
By the way that the second groove 3 of 12 side of the first groove 2 and the second elbow connection pipe unit of the first elbow connection pipe unit 11 is welded
It connects, the first elbow connection pipe unit 11 and the second elbow connection pipe unit 12 can be realized connection, likewise, by by second
4th groove 5 of 13 side of third groove 4 and third elbow connection pipe unit of 12 other side of elbow connection pipe unit welds, i.e.,
Second elbow connection pipe unit 12 and third elbow connection pipe unit 13 can be realized to connection, and the good connecting effect welded and just
In the operation of processor.
To sum up, the production method of a kind of hull elbow connection pipe provided by the invention, elbow is formed by computer solving
The basic parameter value of each elbow connection pipe unit of connecting tube 1, and setting-out and jacking are carried out to elbow connection pipe 1, after being
The making of the elbow connection pipe 1 of phase provides information, consequently facilitating the processing of elbow connection pipe 1.Therefore, the present invention greatly reduces
The manufacture difficulty of elbow connection pipe 1 shortens the fabrication cycle of elbow connection pipe 1, improves the producing efficiency of elbow connection pipe 1
And production quality, and effectively pushed automation and lean technology and applied in piping making.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principle of the present invention, several improvement and deformations can also be made, these improvement and deformations are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of production method of hull elbow connection pipe, which is characterized in that include the following steps：
S1, be made up of computer solving the elbow connection pipe each elbow connection pipe unit basic parameter value, and
The drafting of engineering drawing is carried out to each elbow connection pipe unit；
S2, two-dimensional development is carried out to each elbow connection pipe unit, and generates the two of each elbow connection pipe unit
Tie up expanded view；
S3, each elbow connection pipe unit is drawn to elbow connection pipe progress setting-out using computer lofting technology
Part drawing after setting-out；
S4, carry out jacking is carried out to the part drawing after the elbow connection pipe unit setting-out, and exports machining information；
S5, institute is formed to plate to be processed progress cutting stock according to the machining information and related processing parameters of the jacking figure
State the entity of elbow connection pipe unit；
S6, the entity of each elbow connection pipe unit after being cut in step S5 is rolled, and after rolling
The entity of each elbow connection pipe unit is assembled.
2. the production method of hull elbow connection pipe as described in claim 1, which is characterized in that each in the step S1
The basic parameter value of the elbow connection pipe unit includes structural parameters, stressing conditions, form dimension, location dimension and overall ruler
It is very little.
3. the production method of hull elbow connection pipe as claimed in claim 2, which is characterized in that the step S1 further includes pair
Form dimension, location dimension and the overall dimension of each elbow connection pipe unit are labeled.
4. the production method of hull elbow connection pipe as described in claim 1, which is characterized in that described in the step S5
Plate to be processed carries out cutting stock by cutter device.
5. the production method of hull elbow connection pipe as claimed in claim 3, which is characterized in that the cutter device is numerical control
Cutting machine.
6. the production method of hull elbow connection pipe as described in claim 1, which is characterized in that in the step S6, will cut
The entity of each elbow connection pipe unit after cutting is rolled by rolling device, makes the elbow connection pipe unit
The shape crimped of entity is at tubular.
7. the production method of hull elbow connection pipe as claimed in claim 5, which is characterized in that each in the step S6
By being welded to connect between the elbow connection pipe unit of tubular.
8. the production method of hull elbow connection pipe as described in claim 1, which is characterized in that described in the step S5
Machining information includes cutting sequence, placed side and the groove type of the elbow connection pipe unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330734.4A CN108581378A (en) | 2018-04-13 | 2018-04-13 | A kind of production method of hull elbow connection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810330734.4A CN108581378A (en) | 2018-04-13 | 2018-04-13 | A kind of production method of hull elbow connection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108581378A true CN108581378A (en) | 2018-09-28 |
Family
ID=63622295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810330734.4A Pending CN108581378A (en) | 2018-04-13 | 2018-04-13 | A kind of production method of hull elbow connection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108581378A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280920A (en) * | 2019-06-28 | 2019-09-27 | 中国航发南方工业有限公司 | The production method of profiled metal air hose |
| CN112570998A (en) * | 2020-12-06 | 2021-03-30 | 中国二冶集团有限公司 | Manufacturing process method of air cooling pipeline of thermal generator set |
| CN113000980A (en) * | 2021-02-05 | 2021-06-22 | 海洋石油工程（青岛）有限公司 | Construction process method for pipeline blanking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979809A (en) * | 1973-12-24 | 1976-09-14 | Johann Friedrich Schneider | Pipe elbow and method of making same |
| CN102489941A (en) * | 2011-11-25 | 2012-06-13 | 株洲南方燃气轮机成套制造安装有限公司 | Method for manufacturing metal elbow |
| CN102941446A (en) * | 2012-11-15 | 2013-02-27 | 江阴中南重工股份有限公司 | Production method for equal-strength symmetrical weld joint steel plate elbow |
| 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 |
| CN106041430A (en) * | 2016-07-05 | 2016-10-26 | 重庆铁马工业集团有限公司 | Auxiliary molding method for shrimp bend of panel |
-
2018
- 2018-04-13 CN CN201810330734.4A patent/CN108581378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979809A (en) * | 1973-12-24 | 1976-09-14 | Johann Friedrich Schneider | Pipe elbow and method of making same |
| CN102489941A (en) * | 2011-11-25 | 2012-06-13 | 株洲南方燃气轮机成套制造安装有限公司 | Method for manufacturing metal elbow |
| CN102941446A (en) * | 2012-11-15 | 2013-02-27 | 江阴中南重工股份有限公司 | Production method for equal-strength symmetrical weld joint steel plate elbow |
| 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 |
| CN106041430A (en) * | 2016-07-05 | 2016-10-26 | 重庆铁马工业集团有限公司 | Auxiliary molding method for shrimp bend of panel |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280920A (en) * | 2019-06-28 | 2019-09-27 | 中国航发南方工业有限公司 | The production method of profiled metal air hose |
| CN110280920B (en) * | 2019-06-28 | 2021-06-25 | 中国航发南方工业有限公司 | Method for manufacturing special-shaped metal air pipe |
| CN112570998A (en) * | 2020-12-06 | 2021-03-30 | 中国二冶集团有限公司 | Manufacturing process method of air cooling pipeline of thermal generator set |
| CN112570998B (en) * | 2020-12-06 | 2024-01-05 | 中国二冶集团有限公司 | Manufacturing process method of air cooling pipeline of thermal generator set |
| CN113000980A (en) * | 2021-02-05 | 2021-06-22 | 海洋石油工程（青岛）有限公司 | Construction process method for pipeline blanking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108581378A (en) | A kind of production method of hull elbow connection pipe | |
| CN104923894B (en) | Large H-shaped steel full penetration angle welding exempts from back chipping welding procedure | |
| CN105081595A (en) | Fillet weld welding structure for K-type grooves of moderately-thick plate without back chipping and welding technology of fillet weld welding structure | |
| CN103551750B (en) | Welded tube and manufacture method thereof | |
| CN103817180B (en) | The continuous cold bending shaping method of roll-type of light section sheet pile CSPL2 | |
| CN103934693B (en) | The processing technology of box-structure post/beam shaping | |
| CN107378407B (en) | The construction method of round tube steel member is mutually passed through in a kind of big section | |
| CN103692171A (en) | Making method of shrimp elbow | |
| CN104723205A (en) | Fast machining method of minor-diameter steel pipe intersecting line | |
| CN105252116A (en) | Bi-metal metallurgy composite pipe welding method | |
| CN102426613A (en) | Making method for large-aperture spatial bend pipe intersection line and bevel | |
| CN106780763A (en) | Three-dimensional surface intersection section geometric figure and the space broken line method of development | |
| CN108581256A (en) | A kind of two phase stainless steel complete penetraction and fusion in welding fillet weld automatic welding method | |
| CN101458508A (en) | Tube-tube connection saddle surface welding and incising method | |
| CN105921862A (en) | Welding treatment method suitable for oblique crossing combined forming of steel pipes | |
| CN113486414B (en) | Method for obtaining accurate manufacturing process diagram of overflowing surface horizontal steel bifurcated pipe through three-dimensional modeling | |
| CN114211089A (en) | Pipeline flexible assembly and automatic welding composite working method | |
| CN106141368B (en) | A kind of FLAME NC cutting method of steel pipe full penetration intersection groove | |
| CN201969996U (en) | Longitudinal submerged-arc welding production line for stainless-steel pipe and carbon steel pipe | |
| CN206622471U (en) | A kind of conical steel pipe deployed configuration with complex intersection curve | |
| CN105817841B (en) | Shape tube forming method | |
| CN207757111U (en) | Cross-section welding groove for header saddle-shaped pipe joint | |
| CN105014319B (en) | A kind of production method of complex intersection curve hot rolling Steel Tube Joint | |
| CN102042440B (en) | Combined eccentric reducing pipe and manufacturing method thereof | |
| CN103128503B (en) | Without surplus circular configuration steel pipe support complete processing and tube support structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |