CN101844265A - Wheel stern main machine axle tube subsection shell plating vertical fold welding line welding process - Google Patents
Wheel stern main machine axle tube subsection shell plating vertical fold welding line welding process Download PDFInfo
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- CN101844265A CN101844265A CN201010188171A CN201010188171A CN101844265A CN 101844265 A CN101844265 A CN 101844265A CN 201010188171 A CN201010188171 A CN 201010188171A CN 201010188171 A CN201010188171 A CN 201010188171A CN 101844265 A CN101844265 A CN 101844265A
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Abstract
The invention discloses a wheel stern main machine axle tube subsection shell plating vertical fold welding line welding process, including the following steps: firstly a wheel stern main machine axle tube subsection shell plating vertical fold welding line is divided into three sections, stacking and welding are carried out on middle section, the welding depth is 45-50% of shell plating thickness, deviation between the actual wheel stern main machine axle tube central lie and the standard wheel stern main machine axle tube central line is checked when a section is welded, then the upper section and the lower section are symmetrically welded, the welding depth is 100% shell plating thickness, and finally the residual middle section with 50-65% shell plating thickness is symmetrically welded. The invention has the advantages that operation is reasonable, welding difficulty is low and wheel stern main machine axle tube subsection central line deviation can meet ship normal navigation requirement.
Description
Technical field:
The present invention relates to a kind of welding procedure, refer in particular to a kind of welding procedure of wheel stern main machine axle tube subsection shell plating vertical fold weld seam.
Background technology:
The central siphon segmentation of wheel stern main frame is because its special position, precedingly is connected with the cabin, and the back is connected with the rudder segmentation, takes turns that stern boss rod tube hub deviation size is directly connected to spool and the installation of rudder, is part and parcel particularly in the shipbuilding.This weld seam welding difficulty is big, and the part is subjected to brute force, needs the all-the-way tracking monitoring, and adjusts welding sequence at any time; Normally navigate by water for boats and ships, wheel stern main frame central siphon segmentation centerline deviation is less than 2mm, consults patent documentation and does not have similar welding procedure, needs the special welding procedure of customization just can reach so high precision.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, provide a kind of operation reasonable, the welding difficulty is little, makes wheel stern main frame central siphon segmentation centerline deviation satisfy boats and ships and normally navigates by water the welding procedure of the wheel stern main machine axle tube subsection shell plating vertical fold weld seam that requires.
Purpose of the present invention is achieved through the following technical solutions: a kind of welding procedure of wheel stern main machine axle tube subsection shell plating vertical fold weld seam may further comprise the steps:
A, the seam crossing groove that the outside plate vertical resulatant is held together weld seam are polished, and the criterion of polishing degree is the groove face light;
B, the foreign material such as the greasy dirt in the 25mm-35mm zone, iron rust, oxide that vertically close up around the weld seam of wheel stern boss rod subsection are removed;
Heated 1-2 minute in the 25mm-35mm zone around C, use baking rifle butt welded seam reached, and removes moisture content;
D, will take turns stern boss rod subsection vertically close up weld seam, be divided into three sections of A, B, C from vertical direction, the height of A section is HA, wheel stern main frame central siphon height of lift is H;
E, determine the A fragment position after, the below of A section is the B section in the segmentation of wheel stern boss rod, the top of A section is the C section;
F, while are symmetrically welded from the bottom up in A section both sides, and welding method adopts CO
2The gas single welding, gage of wire 1.2mm-1.5mm;
G, elder generation are symmetrically welded the A section, and fusion length is whenever carried out distance L, stops to be symmetrically welded, behind the to-be-welded region temperature cool to room temperature, check the position of actual wheel stern boss rod tube hub line and center for standard line, when centerline deviation during less than 2mm, continuation is symmetrically welded the A section; When centerline deviation during greater than 2mm, weld in the other direction, opposite side suspends welding, continues the A section is symmetrically welded during less than 2mm up to centre deviation;
After H, A section are symmetrically welded and finish, B section both sides are symmetrically welded from the bottom up;
After I, B section are symmetrically welded and finish, C section both sides are symmetrically welded from the bottom up;
After J, C section are symmetrically welded and finish, the A section residue 50%-65% depth of weld is symmetrically welded from the bottom up.
The present invention compared with prior art has the following advantages:
Its operation rationally, the welding difficulty is little, makes wheel stern main frame central siphon segmentation centerline deviation satisfy boats and ships and normally navigates by water requirement.
Description of drawings:
Fig. 1 is a wheel stern main frame central siphon segmentation schematic diagram;
Fig. 2 be wheel stern boss rod tube subsection vertically close up weld seam segmentation schematic diagram;
Fig. 3 is three kinds of typical actual wheel stern boss rod tube hub lines and center for standard line position schematic diagram;
The segmentation of number in the figure: 10-wheel stern main frame central siphon, 11-wheel stern main frame central siphon, 12-boats and ships, 13-wheel stern boss rod tube subsection vertically close up weld seam, 20-standard wheels stern boss rod tube hub line, 21-centerline deviation circle, 22-actual wheel stern boss rod tube hub line.
The specific embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used to explain the present invention, do not constitute the qualification to protection domain of the present invention.
A kind of specific embodiment of the welding procedure of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of the present invention may further comprise the steps:
A, to the wheel stern main frame central siphon segmentation of boats and ships 12, outside plate vertically closes up seam 13 place's grooves of weld seam polishes, the polishing degree criterion be the groove face light;
B, the foreign material such as the greasy dirt in the 35mm zone, iron rust, oxide that vertically close up around weldering 13 seams of wheel stern boss rod subsection are removed;
Heated 1 minute in the 35mm zone around C, use baking rifle butt welded seam reached, and removes moisture content;
D, will take turns stern boss rod subsection vertically close up weld seam 13, be divided into three sections of A, B, C from vertical direction, the height of A section is HA, the height of wheel stern main frame central siphon segmentation 10 is H, HA=33%H;
After E, A fragment position were determined, the below of A section was the B section in the segmentation 10 of wheel stern boss rod, and the top of A section is the C section;
F, two welders of arrangement are symmetrically welded from the bottom up in A section both sides simultaneously, and welding method adopts CO
2The gas single welding, gage of wire 1.5mm;
G, elder generation are symmetrically welded the A section, the depth of weld is controlled to be 45% of outer plate thickness, fusion length is whenever carried out 8%LA (LA is meant a total fusion length of welder A section welding), stop to be symmetrically welded, behind the to-be-welded region temperature cool to room temperature, check the position of actual wheel stern boss rod tube hub line 22 and standard wheels stern boss rod tube hub line 20, when centerline deviation during less than 2mm, proceed to be symmetrically welded, back road weld seam covers preceding road weld seam 100mm; When centerline deviation during greater than 2mm, weld in the other direction, opposite side suspends welding, is symmetrically welded during less than 2mm up to centerline deviation, has following three kinds of typical case:
A, see Fig. 3 A, centerline deviation circle 21 radiuses are 2mm, when actual wheel stern boss rod tube hub line 22 levels depart from overcenter line deviation circle 21 to the right, stop the welding that the A section is symmetrically welded middle right side, the welding in left side is proceeded, the depth of weld is controlled to be 45% of outer plate thickness, and in centerline deviation circle 21, back road weld seam covers preceding road weld seam 120mm until actual wheel stern boss rod tube hub line 22;
B, see Fig. 3 B, centerline deviation circle 21 radiuses are 2mm, when actual wheel stern boss rod tube hub line 22 departs from overcenter line deviation circle 21 vertically downward, stopping the A section is symmetrically welded, begin to be symmetrically welded from the bottom up from the C section, the depth of weld is controlled to be 100% of outer plate thickness, and back road weld seam covers preceding road weld seam 130mm;
C, see Fig. 3 C, centerline deviation circle 21 radiuses are 2mm, when actual wheel stern boss rod tube hub line 22, with vertically downward, level mode to the right departed from overcenter line deviation circle at 21 o'clock, stop the welding that the A section is symmetrically welded middle right side earlier, the welding in left side is proceeded, and the depth of weld is controlled to be 45% of outer plate thickness, back road weld seam covers preceding road weld seam 120mm, until actual wheel stern boss rod tube hub line 22 be positioned at standard wheels stern boss rod tube hub line 21 under; Stop the welding that the A section is symmetrically welded middle left side subsequently, begin to be symmetrically welded from the bottom up from the C section, the depth of weld is controlled to be 100% of outer plate thickness, and back road weld seam covers preceding road weld seam 130mm;
After H, A section are symmetrically welded and finish, B section both sides are symmetrically welded from the bottom up, the depth of weld is controlled to be 100% of outer plate thickness, and is just identical with outer plate thickness, and back road weld seam covers preceding road weld seam 120mm;
After I, B section are symmetrically welded and finish, C section both sides are symmetrically welded from the bottom up, the depth of weld is controlled to be 100% of outer plate thickness, and is just identical with outer plate thickness, and back road weld seam covers preceding road weld seam 130mm;
After J, C section are symmetrically welded and finish, the A section is remained 65% depth of weld be symmetrically welded from the bottom up;
The present invention has operation rationally, and the welding difficulty is little, makes wheel stern main frame central siphon segmentation centerline deviation satisfy boats and ships and normally navigates by water the advantage that requires.
Claims (8)
1. the welding procedure of a wheel stern main machine axle tube subsection shell plating vertical fold weld seam is characterized in that: may further comprise the steps:
A, the seam crossing groove that the outside plate vertical resulatant is held together weld seam are polished, and the criterion of polishing degree is the groove face light;
B, the foreign material such as the greasy dirt in the 25mm-35mm zone, iron rust, oxide that vertically close up around the weld seam of wheel stern boss rod subsection are removed;
Heated 1-2 minute in the 25mm-35mm zone around C, use baking rifle butt welded seam reached, and removes moisture content;
D, will take turns stern boss rod subsection vertically close up weld seam, be divided into three sections of A, B, C from vertical direction, the height of A section is HA, wheel stern main frame central siphon height of lift is H;
E, determine the A fragment position after, the below of A section is the B section in the segmentation of wheel stern boss rod, the top of A section is the C section;
F, while are symmetrically welded from the bottom up in A section both sides, and welding method adopts CO2 gas single welding, gage of wire 1.2mm-1.5mm;
G, elder generation are symmetrically welded the A section, and fusion length is whenever carried out distance L, stops to be symmetrically welded, behind the to-be-welded region temperature cool to room temperature, check the position of actual wheel stern boss rod tube hub line and center for standard line, when centerline deviation during less than 2mm, continuation is symmetrically welded the A section; When centerline deviation during greater than 2mm, weld in the other direction, opposite side suspends welding, continues the A section is symmetrically welded during less than 2mm up to centre deviation;
After H, A section are symmetrically welded and finish, B section both sides are symmetrically welded from the bottom up;
After I, B section are symmetrically welded and finish, C section both sides are symmetrically welded from the bottom up;
After J, C section are symmetrically welded and finish, the remaining 50%-65% depth of weld of A section is symmetrically welded from the bottom up.
2. according to the welding procedure of the described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1, it is characterized in that: HA=28%H-33%H among the described step D.
3. according to the welding procedure of claim 1 or 2 described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seams, it is characterized in that: 28%HA-33%HA place in the described step e on the A section and standard wheels stern boss rod tube hub line overlap, the depth of weld is the 45%-50% of outer plate thickness, and back road weld seam covers preceding road weld seam 100mm-130mm.
4. according to the welding procedure of each described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1-3, it is characterized in that: the described distance L=5%-8%LA among the described step G (LA is meant-the total fusion length of position welder A section welding).
5. according to the welding procedure of each described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1-4, it is characterized in that: the depth of weld among the described step H is 100% of an outer plate thickness.
6. according to the welding procedure of each described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1-5, it is characterized in that: the back road weld seam among the described step H covers preceding road weld seam 110mm-120mm.
7. according to the welding procedure of each described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1-6, it is characterized in that: the depth of weld among the described step I is 100% of an outer plate thickness.
8. according to the welding procedure of each described a kind of wheel stern main machine axle tube subsection shell plating vertical fold weld seam of claim 1-7, it is characterized in that: the back road weld seam among the described step I covers preceding road weld seam 120mm-130mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101881713A CN101844265B (en) | 2010-05-31 | 2010-05-31 | Welding process of stern main machine axle tube subsection shell plating vertical closure welding line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101881713A CN101844265B (en) | 2010-05-31 | 2010-05-31 | Welding process of stern main machine axle tube subsection shell plating vertical closure welding line |
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| CN101844265A true CN101844265A (en) | 2010-09-29 |
| CN101844265B CN101844265B (en) | 2012-08-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059461A (en) * | 2010-12-15 | 2011-05-18 | 广州中船黄埔造船有限公司 | High precision welding method for rudder horn, propeller shaft bracket and intermediate shaft bracket of long shaft ship |
| CN103624375A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Ship welding technology |
| CN104175073A (en) * | 2014-07-31 | 2014-12-03 | 南京中船绿洲机器有限公司 | Stern roller machining technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0884126A1 (en) * | 1997-06-10 | 1998-12-16 | Friedel Paul Kalberg | Method for arc welding a closed two dimensional seam in a vertical plane, in particular for welding pipes adapted to be cleaned using a pig |
| US20040056066A1 (en) * | 2000-10-10 | 2004-03-25 | O.J. Pipelines Canada | External pipe welding apparatus |
| CN101181765A (en) * | 2007-12-04 | 2008-05-21 | 大连船舶重工集团有限公司 | Double-phase stainless steel progressive welding method |
| CN101648310A (en) * | 2008-08-15 | 2010-02-17 | 中国海洋石油总公司 | Method for welding circular casings with large-thickness casing walls |
-
2010
- 2010-05-31 CN CN2010101881713A patent/CN101844265B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0884126A1 (en) * | 1997-06-10 | 1998-12-16 | Friedel Paul Kalberg | Method for arc welding a closed two dimensional seam in a vertical plane, in particular for welding pipes adapted to be cleaned using a pig |
| US20040056066A1 (en) * | 2000-10-10 | 2004-03-25 | O.J. Pipelines Canada | External pipe welding apparatus |
| CN101181765A (en) * | 2007-12-04 | 2008-05-21 | 大连船舶重工集团有限公司 | Double-phase stainless steel progressive welding method |
| CN101648310A (en) * | 2008-08-15 | 2010-02-17 | 中国海洋石油总公司 | Method for welding circular casings with large-thickness casing walls |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059461A (en) * | 2010-12-15 | 2011-05-18 | 广州中船黄埔造船有限公司 | High precision welding method for rudder horn, propeller shaft bracket and intermediate shaft bracket of long shaft ship |
| CN102059461B (en) * | 2010-12-15 | 2012-12-12 | 广州中船黄埔造船有限公司 | High precision welding method for rudder horn, propeller shaft bracket and intermediate shaft bracket of long shaft ship |
| CN103624375A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Ship welding technology |
| CN104175073A (en) * | 2014-07-31 | 2014-12-03 | 南京中船绿洲机器有限公司 | Stern roller machining technology |
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| CN101844265B (en) | 2012-08-15 |
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Address after: 226000 No. 1, COSCO Road, Jiangsu, Nantong Co-patentee after: jiangsu university Patentee after: Nantong COSCO Shipping Engineering Co., Ltd. Address before: 226000 Jiangsu Province, Nantong City Chongchuan District COSCO Road No. 1 Co-patentee before: jiangsu university Patentee before: COSCO Shipyard Group Co., Ltd. |
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