CN104526109A - Welding process of Q235 steel pipe - Google Patents
Welding process of Q235 steel pipe Download PDFInfo
- Publication number
- CN104526109A CN104526109A CN201410695016.9A CN201410695016A CN104526109A CN 104526109 A CN104526109 A CN 104526109A CN 201410695016 A CN201410695016 A CN 201410695016A CN 104526109 A CN104526109 A CN 104526109A
- Authority
- CN
- China
- Prior art keywords
- welding
- weld
- steel pipe
- select
- weld seam
- 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
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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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
Abstract
The invention discloses a welding process of a Q235 steel pipe, and relates to the technical field of welding processes. The process comprises three major steps of preparing for welding, welding, and processing after welding. The welding process of the Q235 steel pipe has the advantages that the welding steps are simplified, the welding mode is simple, the materials selected are accurate and standard, the welding quality of the Q235 steel plate can be ensured, and moreover, a standard welding mode is provided for the Q235 steel pipe, which is beneficial for the quick and safe welding of the Q235 steel pipe.
Description
Technical field
The present invention relates to welding technique field, is more particularly a kind of welding procedure of Q235 steel pipe.
Background technology
Different welding methods has different welding procedures.Welding procedure is mainly according to material, the trade mark, the chemical composition of welded piece, and weldment structure type, welding performance requires to determine.First will determine welding method, as manual metal-arc welding, submerged-arc welding, argon tungsten-arc welding, gas metal-arc welding etc., the kind of welding method is very many, can only select as the case may be.After determining welding method, reenact welding condition, the kind of welding condition is different, as manual metal-arc welding mainly comprises: welding rod model (or trade mark), diameter, electric current, voltage, source of welding current kind, polarity connection, the welding number of plies, number of channels, the method for inspection etc.But, due to the diversity of welding manner and welding material, there is various abnormal activity in welding process, and then cause the quality of welding work pieces lower, sometimes also there will be accident.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art, a kind of welding procedure of Q235 steel pipe is provided.
The object of the invention is to be achieved through the following technical solutions:
A welding procedure for Q235 steel pipe, the thickness of steel pipe is 3mm, it is characterized in that: comprise the following steps:
(1) preparation before welding:
The first, check that whether surface of the work is moist, if welded again after the dryings such as the moist need of surface of the work;
The second, select welding manner and select welding material, adopt SMAW to weld, selection of electrodes E4303 model welding rod, welding wire selects H08A grade of steel welding wire;
Three, welding equipment and aid etc. is reviewed and validate in shape;
Four, welding position is carried out to preweld cleaning, removes the impurity such as iron rust, greasy dirt, it is bright and clean that significant points carries out polishing;
(2) weld:
The first, select A.C. welder, select the diameter 3.2mm of welding rod according to the thickness of workpiece, the diameter according to welding rod selects welding current 120A;
The second, tack weld;
Three, weld by pattern requirement, weld size should meet pattern regulation, and for longer weld seam, especially full weld should welding from the middle to both ends, adopts segmentation to be interrupted welding to reduce welding deformation;
(3) after welding treatment:
The first, welding slag and splash is removed;
The second, unsightly weld seam is polished;
Three, the welding deformation of quality and outward appearance is affected with flame or mechanical checkout.
The welding procedure of described a kind of Q235 steel pipe, it is characterized in that: the size of weld seam after the height of tack weld and width must not exceed, a part for weld seam after should being, according to the size of welding structural element, the length optional of spot welding selects 10 ~ 80mm, spot welding and the welding rod formally welded with the same trade mark.
The invention has the advantages that:
The welding procedure of a kind of Q235 steel pipe provided by the invention, simplify welding step, welding manner is simple, material selection exact specification, the welding quality of steel pipe can be ensured, for Q235 steel pipe provides a kind of welding manner of specification, be conducive to the welding fast and safely of Q235 steel pipe.
Detailed description of the invention
A welding procedure for Q235 steel pipe, the thickness of steel pipe is 3mm, it is characterized in that: comprise the following steps:
(1) preparation before welding:
The first, check that whether surface of the work is moist, if welded again after the dryings such as the moist need of surface of the work;
The second, select welding manner and select welding material, adopt SMAW to weld, selection of electrodes E4303 model welding rod, welding wire selects H08A grade of steel welding wire;
Three, welding equipment and aid etc. is reviewed and validate in shape;
Four, welding position is carried out to preweld cleaning, removes the impurity such as iron rust, greasy dirt, it is bright and clean that significant points carries out polishing;
(2) weld:
The first, select A.C. welder, select the diameter 3.2mm of welding rod according to the thickness of workpiece, the diameter according to welding rod selects welding current 120A;
The second, tack weld;
Three, weld by pattern requirement, weld size should meet pattern regulation, and for longer weld seam, especially full weld should welding from the middle to both ends, adopts segmentation to be interrupted welding to reduce welding deformation;
(3) after welding treatment:
The first, welding slag and splash is removed;
The second, unsightly weld seam is polished;
Three, the welding deformation of quality and outward appearance is affected with flame or mechanical checkout.
The welding procedure of described a kind of Q235 steel pipe, it is characterized in that: the size of weld seam after the height of tack weld and width must not exceed, a part for weld seam after should being, according to the size of welding structural element, the length of spot welding selects 40mm, spot welding and the welding rod formally welded with the same trade mark.
Claims (2)
1. a welding procedure for Q235 steel pipe, the thickness of steel pipe is 3mm, it is characterized in that: comprise the following steps:
Preparation before welding:
The first, check that whether surface of the work is moist, if welded again after the dryings such as the moist need of surface of the work;
The second, select welding manner and select welding material, adopt SMAW to weld, selection of electrodes E4303 model welding rod, welding wire selects H08A grade of steel welding wire;
Three, welding equipment and aid etc. is reviewed and validate in shape;
Four, welding position is carried out to preweld cleaning, removes the impurity such as iron rust, greasy dirt, it is bright and clean that significant points carries out polishing;
(2) weld:
The first, select A.C. welder, select the diameter 3.2mm of welding rod according to the thickness of workpiece, the diameter according to welding rod selects welding current 120A;
The second, tack weld;
Three, weld by pattern requirement, weld size should meet pattern regulation, and for longer weld seam, especially full weld should welding from the middle to both ends, adopts segmentation to be interrupted welding to reduce welding deformation;
(3) after welding treatment:
The first, welding slag and splash is removed;
The second, unsightly weld seam is polished;
Three, the welding deformation of quality and outward appearance is affected with flame or mechanical checkout.
2. the welding procedure of a kind of Q235 steel pipe according to claim 1, it is characterized in that: the size of weld seam after the height of tack weld and width must not exceed, a part for weld seam after should being, according to the size of welding structural element, the length optional of spot welding selects 10 ~ 80mm, spot welding and the welding rod formally welded with the same trade mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695016.9A CN104526109A (en) | 2014-11-27 | 2014-11-27 | Welding process of Q235 steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695016.9A CN104526109A (en) | 2014-11-27 | 2014-11-27 | Welding process of Q235 steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104526109A true CN104526109A (en) | 2015-04-22 |
Family
ID=52841839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410695016.9A Pending CN104526109A (en) | 2014-11-27 | 2014-11-27 | Welding process of Q235 steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526109A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392252A (en) * | 2016-06-29 | 2017-02-15 | 无锡新大力电机有限公司 | Welding technology for outer rotor core |
| CN106735758A (en) * | 2017-01-03 | 2017-05-31 | 苏州长风航空电子有限公司 | A kind of two-way argon arc welding method for preventing from welding deformation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320120A (en) * | 1998-05-08 | 1999-11-24 | Nittetsu Boshoku Kk | Steel pipe local joining method |
| CN103506743A (en) * | 2012-06-29 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Submerged-arc automation welding rotary kiln cylinder body technology |
-
2014
- 2014-11-27 CN CN201410695016.9A patent/CN104526109A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11320120A (en) * | 1998-05-08 | 1999-11-24 | Nittetsu Boshoku Kk | Steel pipe local joining method |
| CN103506743A (en) * | 2012-06-29 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Submerged-arc automation welding rotary kiln cylinder body technology |
Non-Patent Citations (2)
| Title |
|---|
| VICTORQUN: "Q235钢焊接工艺", 《百度文库》 * |
| 李海民: "浅析Q235φ820×10钢管焊接施工工艺", 《西部探矿工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392252A (en) * | 2016-06-29 | 2017-02-15 | 无锡新大力电机有限公司 | Welding technology for outer rotor core |
| CN106735758A (en) * | 2017-01-03 | 2017-05-31 | 苏州长风航空电子有限公司 | A kind of two-way argon arc welding method for preventing from welding deformation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150422 |