CN111250889A - Small hole welding method for fixing metal piece in steel pipe - Google Patents
Small hole welding method for fixing metal piece in steel pipe Download PDFInfo
- Publication number
- CN111250889A CN111250889A CN202010203908.8A CN202010203908A CN111250889A CN 111250889 A CN111250889 A CN 111250889A CN 202010203908 A CN202010203908 A CN 202010203908A CN 111250889 A CN111250889 A CN 111250889A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- metal piece
- welding
- small hole
- small holes
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a small hole welding method for fixing a metal piece in a steel pipe, which comprises the steps of drilling a plurality of small holes in the circumferential direction of the steel pipe on the surface of the steel pipe corresponding to the installation position of the metal piece according to the installation position of the metal piece in the steel pipe, pushing the metal piece to the installation position with the small holes by a push rod, enabling the side wall of the metal piece to be tightly attached to the small holes, and welding the metal piece and the steel pipe together by electric welding or oxygen welding through the small holes. The invention adopts an innovative small hole welding process, solves the technical problem that the metal piece cannot be fixed in the steel pipe at present, and has the advantages of simple operation, low cost, high efficiency, strong engineering practical value and wide application range.
Description
Technical Field
The invention relates to a metal processing technology, in particular to a small hole welding method for fixing a metal piece in a steel pipe, and belongs to the technical field of metal welding.
Background
The applicant filed an invention name in 2013 on 6/28 by Zhang leading: the invention patent of 'a lining section type bending-resistant engineering pipe' is granted in 2016, 8 months and 10 days, and the granted publication number is CN 103277659B, and in the practical application process, a small steel workpiece, namely 'a lining section', is welded at a certain specific position in a steel pipe, which is difficult to realize: since the standard length of commercially available steel pipes is 6 m, but the diameter of steel pipes for engineering use as load-bearing structures is generally less than 10 cm, welding operations in steel pipes under these conditions have encountered an insurmountable difficulty: the body can not move and the arms are not long enough. Therefore, a new welding process is needed to solve the above technical difficulties.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a small hole welding method for fixing metal parts in a steel pipe, which is used as a matching process for producing a lining joint type bending-resistant engineering pipe.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for welding the small holes on the steel pipe to fix the metal part in it includes drilling several small holes on the surface of steel pipe, pushing the metal part to the position where the small holes are drilled, sticking the side wall of metal part to the small holes, and welding the metal part to steel pipe by electric or oxygen welding.
The small hole welding method for fixing the metal piece in the steel pipe specifically comprises the following steps:
(1) placing the steel pipe on an operation table, drawing a transverse line on the surface of the steel pipe at certain intervals, and dividing the steel pipe into m pipe sections with equal length, wherein m is more than or equal to 3;
(2) drawing a circle at the boundary of each equal-length pipe section along the direction parallel to the cross section of the steel pipe, so that the circular surface enclosed by each circle is parallel to the cross section of the steel pipe;
(3) equally dividing the circumference enclosed by each circle into n equal arc sections, marking an equally divided mark point at the boundary of each arc section, wherein n is more than or equal to 3;
(4) drilling a small hole in each mark point;
(5) the metal piece is sent to the position where the small hole is drilled by a push rod, so that the side wall of the metal piece is tightly attached to the small hole;
(6) and welding the metal piece and the steel pipe together by electric welding or oxygen welding through the small holes.
According to the small hole welding method for fixing the metal piece in the steel pipe, as a preferable scheme, the aperture of the small hole is 3-10 mm.
The invention has the beneficial effects that: compared with the prior art, the invention can be used as a matched production process of the lining joint type bending-resistant engineering pipe and can also be used for a similar processing and manufacturing process of a metal part needing to fix a metal part on a steel pipe. The invention adopts an innovative small hole welding process, solves the technical problem that the metal piece cannot be fixed in the steel pipe at present, and has the advantages of simple operation, low cost, high efficiency, strong engineering practical value and wide application range.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
The invention is further described with reference to the following figures and detailed description.
Detailed Description
Example 1: as shown in FIG. 1, a small hole welding method for fixing a lining section in a steel pipe by taking the lining section as an example comprises the following process steps:
(1) placing a steel pipe 1 with the length of 6 meters on an operation table, drawing transverse lines on the surface of the steel pipe 1 every 50cm, drawing 11 transverse lines in total, and dividing the whole steel pipe into 12 pipe sections with equal length;
(2) at the boundary of each equal-length pipe section, drawing a circle on the surface of the steel pipe along the direction parallel to the cross section of the steel pipe 1, so that the circular surface surrounded by each circle is parallel to the cross section of the steel pipe 1;
(3) equally dividing the circumference enclosed by each circle into 6 equal arc sections, and marking an equal mark point at the boundary of each equal arc section;
(4) drilling a small hole 2 on each mark point by using an electric drill, wherein the aperture of the small hole 2 is 5 mm;
(5) a plurality of lining sections 3 are respectively sent to the positions where the small holes 2 are drilled by using a push rod, so that the side wall of each lining section 3 is tightly attached to the small holes 2;
(6) and welding the metal piece and the steel pipe together by electric welding or oxygen welding through the small holes 2.
The lining segments can be other metal pieces, the arc segments divided in the step (3) can be equal-divided arc segments with equal length or arc segments with unequal length, and the number of the arc segments is determined according to actual needs; and (4) flexibly adjusting the aperture size of the small hole 2 according to the diameter of the steel pipe and the size of the metal piece.
The embodiments of the present invention are not limited to the above-described examples, and various changes made without departing from the spirit of the present invention are within the scope of the present invention.
Claims (3)
1. A small hole welding method for fixing metal parts in a steel pipe is characterized in that: according to the installation position of the metal piece in the steel pipe, a plurality of small holes are drilled in the circumferential direction of the steel pipe on the surface of the steel pipe corresponding to the installation position of the metal piece, then the metal piece is pushed to the installation position where the small holes are drilled by a push rod, the side wall of the metal piece is attached to the small holes, and then the metal piece and the steel pipe are welded together by electric welding or oxygen welding through the small holes.
2. A keyhole welding method for fixing a metal member in a steel tube according to claim 1, comprising the steps of:
(1) placing the steel pipe on an operation table, drawing a transverse line on the surface of the steel pipe at certain intervals, and dividing the steel pipe into m pipe sections with equal length, wherein m is more than or equal to 3;
(2) drawing a circle at the boundary of each equal-length pipe section along the direction parallel to the cross section of the steel pipe, so that the circular surface enclosed by each circle is parallel to the cross section of the steel pipe;
(3) equally dividing the circumference enclosed by each circle into n equal arc sections, marking an equally divided mark point at the boundary of each arc section, wherein n is more than or equal to 3;
(4) drilling a small hole in each mark point;
(5) the metal piece is sent to the position where the small hole is drilled by a push rod, so that the side wall of the metal piece is tightly attached to the small hole;
(6) and welding the metal piece and the steel pipe together by electric welding or oxygen welding through the small holes.
3. The keyhole welding method for fixing a metal member in a steel pipe according to claim 1 or 2, wherein: the aperture of the small hole is 3-10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203908.8A CN111250889A (en) | 2020-03-21 | 2020-03-21 | Small hole welding method for fixing metal piece in steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010203908.8A CN111250889A (en) | 2020-03-21 | 2020-03-21 | Small hole welding method for fixing metal piece in steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111250889A true CN111250889A (en) | 2020-06-09 |
Family
ID=70942026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010203908.8A Withdrawn CN111250889A (en) | 2020-03-21 | 2020-03-21 | Small hole welding method for fixing metal piece in steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111250889A (en) |
-
2020
- 2020-03-21 CN CN202010203908.8A patent/CN111250889A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201317023Y (en) | Pipe punching device | |
| CN204673010U (en) | A kind of steel tube drilling device | |
| CN104841973A (en) | Drilling device for steel pipes | |
| CN202894421U (en) | Tube wall drill fixture | |
| CN207840554U (en) | A kind of flange welding positioning tooling | |
| CN109332982B (en) | Steel bar butt joint positioning device for pile foundation steel reinforcement cage machining and construction method | |
| CN111250889A (en) | Small hole welding method for fixing metal piece in steel pipe | |
| CN205552090U (en) | Rotation type center positioning adjustment ware | |
| CN108890168B (en) | Tunnel pipe shed plug-in welding type connecting device and method thereof | |
| CN100496788C (en) | Straightening method of expanding steel pipe | |
| CN203380559U (en) | Positioning tool for welding large-diameter annularly distributed bend pipes | |
| CN203664472U (en) | Technological equipment for machining holes in metal pipe wall | |
| CN216109719U (en) | Adjustable preformed hole template | |
| CN221086943U (en) | Multi-angle jig for 3D pipe | |
| CN112171156B (en) | Positioning device, positioning structure and construction method for steel bar clamp of steel bar cage seam welder | |
| CN204893325U (en) | Group is to anchor clamps suitable for pipeline welding of different wall thickness nuclear level | |
| CN215918743U (en) | Quick cold bending mould of small pipe diameter steel pipe | |
| CN217251965U (en) | Punching positioning and guiding device | |
| CN205519131U (en) | W type web member special use instrument of bending | |
| CN216520153U (en) | Reducing joint of flue gas gate valve | |
| CN219327520U (en) | Down-the-hole hammer guider | |
| CN201519784U (en) | High-efficient handle drilling machine | |
| CN216829447U (en) | Pipe centering fixture and pipe centering device | |
| CN206289292U (en) | A kind of casting pipe zinc spray production equipment combination is top | |
| CN208380506U (en) | A kind of drilling rod auxiliary locator on air rock drill |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200609 |
|
| WW01 | Invention patent application withdrawn after publication |