CN102990239A - Valve inner girth welding method - Google Patents
Valve inner girth welding method Download PDFInfo
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- CN102990239A CN102990239A CN2012105711212A CN201210571121A CN102990239A CN 102990239 A CN102990239 A CN 102990239A CN 2012105711212 A CN2012105711212 A CN 2012105711212A CN 201210571121 A CN201210571121 A CN 201210571121A CN 102990239 A CN102990239 A CN 102990239A
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- weld
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Abstract
The invention discloses a valve inner girth welding method which comprises welding pretreatment, welding. The welding pretreatment comprises rust removal treatment and oil removal treatment at places needing welding; the welding is that a welding gun is used for welding valve inner girths, a track of the welding gun during welding meets the following relation that Y=Asin(X-90degree), wherein the A=1/2tan alpha*D, the Y is the track of the welding gun, the A is an interpolation value, the X is a rotation angle of the welding gun, the alpha is an angle of a welding line, and the D is the diameter of an inner cavity of the value; a crane tool is installed after completion of welding, a pressing plate and a limiting block are released to lift a valve. The valve inner girth welding method is convenient to weld and good in effect, effectively improves welding efficiency and welding stability and improves work efficiency.
Description
Technical field
The present invention relates to circular-seam welding method in a kind of valve.
Background technology
Fillet weld seam inconvenience between existing valvular valve body and the valve seat ring, welding effect is undesirable, needs further to be improved.
Summary of the invention
The object of the present invention is to provide circular-seam welding method in a kind of convenient welding, the effective valve.
Technical solution of the present invention is:
Circular-seam welding method in a kind of valve is characterized in that: comprise the following steps:
(1) welding pre-treatment: with the place that valve need to weld eliminate rust, oil removal treatment;
(2) welding: valve is sling, the inboard flange excircle of valve is put on the limited block on the bonding machine rotary disk, valve outer flange cylindrical is put on the roller of movable support bracket; Compress the inboard flanged plate of valve with pressing plate, and fastening good; The limited block of large rotary disk top is pressed in the flange outer diameter place, props up the flanged plate cylindrical, flange center finishes the location; Lifting tool is taken away, put into seat ring and backing plate, the pneumatic seat ring that holds out against; Cross is walked left, and welding gun after being close to valve stretches out the cross transverse arm, and adjusts the cross micro-adjusting mechanism, makes welding gun aim at weld seam; With welding gun circumferential weld in the valve is welded, the welding gun track meets following relationship during welding:
Y=Asin (X-90 °), A=1/2tan α * D wherein, wherein Y is the welding gun track, and A is interpolation value, and X is the welding gun anglec of rotation, and α is the weld seam angle, D is the valve cavity diameter;
Install lifting tool after welding is finished, unclamp pressing plate and limited block, valve is hung away.
Convenient welding of the present invention, effective, Effective Raise welding precision and welding stability, improved operating efficiency.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of the present invention's valve to be processed.
Fig. 2 is that weld seam, valve cavity diameter, interpolation value concern schematic diagram.
Fig. 3 is welding gun track, workpiece rotating angular relationship figure.
Fig. 4 is the bonding machine structural representation.
The specific embodiment
Circular-seam welding method in a kind of valve comprises the following steps:
(1) welding pre-treatment: with the place that valve need to weld eliminate rust, oil removal treatment;
(2) welding: valve is sling, the inboard flange excircle of valve is put on the limited block on the bonding machine rotary disk, valve outer flange cylindrical is put on the roller 5 of movable support bracket 4; Compress the inboard flanged plate of valve with pressing plate, and fastening good; The limited block of large rotary disk 2 tops is pressed in the flange outer diameter place, props up the flanged plate cylindrical, flange center finishes the location; Lifting tool is taken away, put into seat ring 1 and backing plate, the pneumatic seat ring that holds out against; Cross 3 is walked left, and welding gun 6 after being close to valve stretches out cross transverse arm 7, and adjusts the cross micro-adjusting mechanism, makes welding gun aim at weld seam; With welding gun circumferential weld in the valve 8 is welded, the welding gun track meets following relationship during welding:
Y=Asin (X-90 °), A=1/2tan α * D wherein, wherein Y is the welding gun track, and A is interpolation value, and X is the welding gun anglec of rotation, and α is the weld seam angle, D is the valve cavity diameter;
Install lifting tool after welding is finished, unclamp pressing plate and limited block, valve is hung away.
Claims (1)
1. the interior circular-seam welding method of valve is characterized in that: comprise the following steps:
(1) welding pre-treatment: with the place that valve need to weld eliminate rust, oil removal treatment;
(2) welding: valve is sling, the inboard flange excircle of valve is put on the limited block on the bonding machine rotary disk, valve outer flange cylindrical is put on the roller of movable support bracket; Compress the inboard flanged plate of valve with pressing plate, and fastening good; The limited block of large rotary disk top is pressed in the flange outer diameter place, props up the flanged plate cylindrical, flange center finishes the location; Lifting tool is taken away, put into seat ring and backing plate, the pneumatic seat ring that holds out against; Cross is walked left, and welding gun after being close to valve stretches out the cross transverse arm, and adjusts the cross micro-adjusting mechanism, makes welding gun aim at weld seam; With welding gun circumferential weld in the valve is welded, the welding gun track meets following relationship during welding:
Y=Asin (X-90 °), A=1/2tan α * D wherein, wherein Y is the welding gun track, and A is interpolation value, and X is the welding gun anglec of rotation, and α is the weld seam angle, D is the valve cavity diameter;
Install lifting tool after welding is finished, unclamp pressing plate and limited block, valve is hung away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105711212A CN102990239A (en) | 2012-12-26 | 2012-12-26 | Valve inner girth welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105711212A CN102990239A (en) | 2012-12-26 | 2012-12-26 | Valve inner girth welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102990239A true CN102990239A (en) | 2013-03-27 |
Family
ID=47919638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105711212A Pending CN102990239A (en) | 2012-12-26 | 2012-12-26 | Valve inner girth welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990239A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238977A (en) * | 2016-08-30 | 2016-12-21 | 苏州纽威阀门股份有限公司 | A kind of valve block circle welding equipment and welding method |
| CN108247232A (en) * | 2018-02-11 | 2018-07-06 | 中广核核电运营有限公司 | Height puts the valve seat girth joint welding system and its welder of valve |
| CN114643396A (en) * | 2022-04-21 | 2022-06-21 | 杭州力琪阀门有限公司 | Automatic welding equipment for inner ring of valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1469318A (en) * | 1975-09-19 | 1977-04-06 | Foster Wheeler Power Prod | Arc welding torch |
| JPS58163583A (en) * | 1982-03-25 | 1983-09-28 | Toshiba Corp | Automatic welding device |
| US4971750A (en) * | 1989-06-29 | 1990-11-20 | Westinghouse Electric Corp. | End stop for welding sealing plugs of nuclear fuel rods |
| JPH07214311A (en) * | 1994-02-01 | 1995-08-15 | Mitsubishi Materials Corp | Equipment for cladding by welding |
| JP2729247B2 (en) * | 1990-06-26 | 1998-03-18 | フジオーゼックス株式会社 | Overlay welding method of overlay material to engine valve etc. |
| CN201511218U (en) * | 2009-09-24 | 2010-06-23 | 宁波市拓新焊接技术有限公司 | Device used for welding valves |
| CN201702533U (en) * | 2010-05-20 | 2011-01-12 | 什邡市明日宇航工业股份有限公司 | Clearance-adjustable girth welding jig |
| CN202037398U (en) * | 2011-04-29 | 2011-11-16 | 宁波市拓新焊接技术有限公司 | Special welding machine for valve build up welding |
| CN102275027A (en) * | 2011-07-14 | 2011-12-14 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Resurfacing welding device and resurfacing welding method for inner wall of irregular circular cavity |
-
2012
- 2012-12-26 CN CN2012105711212A patent/CN102990239A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1469318A (en) * | 1975-09-19 | 1977-04-06 | Foster Wheeler Power Prod | Arc welding torch |
| JPS58163583A (en) * | 1982-03-25 | 1983-09-28 | Toshiba Corp | Automatic welding device |
| US4971750A (en) * | 1989-06-29 | 1990-11-20 | Westinghouse Electric Corp. | End stop for welding sealing plugs of nuclear fuel rods |
| JP2729247B2 (en) * | 1990-06-26 | 1998-03-18 | フジオーゼックス株式会社 | Overlay welding method of overlay material to engine valve etc. |
| JPH07214311A (en) * | 1994-02-01 | 1995-08-15 | Mitsubishi Materials Corp | Equipment for cladding by welding |
| CN201511218U (en) * | 2009-09-24 | 2010-06-23 | 宁波市拓新焊接技术有限公司 | Device used for welding valves |
| CN201702533U (en) * | 2010-05-20 | 2011-01-12 | 什邡市明日宇航工业股份有限公司 | Clearance-adjustable girth welding jig |
| CN202037398U (en) * | 2011-04-29 | 2011-11-16 | 宁波市拓新焊接技术有限公司 | Special welding machine for valve build up welding |
| CN102275027A (en) * | 2011-07-14 | 2011-12-14 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Resurfacing welding device and resurfacing welding method for inner wall of irregular circular cavity |
Non-Patent Citations (1)
| Title |
|---|
| 李章龙: "小口径阀门内环缝自动焊设备的研究", 《兰州理工大学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238977A (en) * | 2016-08-30 | 2016-12-21 | 苏州纽威阀门股份有限公司 | A kind of valve block circle welding equipment and welding method |
| CN106238977B (en) * | 2016-08-30 | 2018-01-30 | 苏州纽威阀门股份有限公司 | A kind of valve block circle welding equipment and welding method |
| CN108247232A (en) * | 2018-02-11 | 2018-07-06 | 中广核核电运营有限公司 | Height puts the valve seat girth joint welding system and its welder of valve |
| CN114643396A (en) * | 2022-04-21 | 2022-06-21 | 杭州力琪阀门有限公司 | Automatic welding equipment for inner ring of valve |
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Application publication date: 20130327 |