CN107511563A - A kind of high-precision optical instrument base frame welding technique - Google Patents
A kind of high-precision optical instrument base frame welding technique Download PDFInfo
- Publication number
- CN107511563A CN107511563A CN201610430238.7A CN201610430238A CN107511563A CN 107511563 A CN107511563 A CN 107511563A CN 201610430238 A CN201610430238 A CN 201610430238A CN 107511563 A CN107511563 A CN 107511563A
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- China
- Prior art keywords
- welding
- optical instrument
- precision optical
- instrument base
- base frame
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Classifications
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- 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
- B23K9/095—Monitoring or automatic control of welding parameters
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
-
- 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
- B23K2101/24—Frameworks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention relates to the welding field in equipment manufacture, specially a kind of high-precision optical instrument base frame welding technique, suitable for the welding of the high-precision optical instrument base framework of 304 stainless steel materials.Using manual electric arc welding, 304 stainless steel base frameworks are welded；The used 304 stainless steel electrode trade mark：E308 15, core diameter：
Description
Technical field：
The present invention relates to the welding field in equipment manufacture, specially a kind of high-precision optical instrument base framework
Welding procedure, suitable for the welding of the high-precision optical instrument base framework of 304 stainless steel materials.
Background technology：
High-precision optical instrument base framework is lead frame, framework be by more than 40 304 stainless steel plates welding and
Into, wherein ensure the weld strength of stainless steel thick plate, the structural stability of control framework welding deformation amount and postwelding
It is the difficult point of its technology.The characteristics of for its structure and technological difficulties, by the welding groove of Optimization Framework, close
Manage the precision for arranging welding sequence and guarantee framework in group pair, the tension type of postwelding elimination workpiece, formulation section
, rational welding procedure are particularly important.
The content of the invention：
It is an object of the invention to provide a kind of high-precision optical instrument base frame welding technique, with general weldering
Equipment is connect, by adjusting welding condition, welding groove form is rationally designed, from suitable postwelding destressing
Mode, the accuracy guarantee of good welding effect and workpiece is obtained, solve the weldering of high-precision optical instrument base framework
Connect the problem of difficult and required precision is high.
The technical scheme is that：
A kind of high-precision optical instrument base frame welding technique, using manual electric arc welding, weld 304 stainless steels
Base framework；The used 304 stainless steel electrode trade mark：E308-15, core diameter：Power supply
Polarity：DC reverse connection；The welding procedure includes pre-welding treatment, welding process and post weld heat treatment, wherein welding
Termination process technological parameter is：250~280A of welding current, 28~32V of weldingvoltage, speed of welding 280~
320mm/min。
Described high-precision optical instrument base frame welding technique, by weight percentage, E308-15 welding rods
Chemical composition it is as follows：C：0.08；Si：0.90；Mn：0.5~2.5；Ni：9.0~11.0；Cr：
18.0~21.0；Mo：0.75；S≤0.030；P≤0.040；Fe：Surplus.
Described high-precision optical instrument base frame welding technique, manual electric arc welding are applied to welding base framework
Overall process.
Described high-precision optical instrument base frame welding technique, is comprised the following steps that：
(1) it is handled as follows before the weldering of manual electric arc welding：Weldment groove is cleared up with stainless steel brush and away from groove two
Dirt in the range of the 30~50mm both sides of side；100~200 DEG C of drying of welding rod, and be incubated in heat-preserving container；
(2) in the welding process of manual electric arc welding：Interlayer temperature is controlled at 100~150 DEG C；
(3) postwelding of manual electric arc welding is handled as follows：During welding ending, arc crater is filled up, postwelding is disappeared
Hydrogen processing and elimination welding stress processing.
Described high-precision optical instrument base frame welding technique, post weld heat treatment technique：It is warming up to stove
400~420 DEG C, soaking time 2h；Continue to heat, heated up with stove, be heated to 880 ± 10 DEG C, during insulation
Between be 2h；Furnace cooling, temperature are down to 300~350 DEG C, come out of the stove and be air-cooled to room temperature.
Described high-precision optical instrument base frame welding technique, according to different plates thickness, difference connects
Head type, selects different grooves and size, and groove is U-shaped groove, V-butt or single V-butt, slope
Mouth ensures that weld seam reaches the depth of weld of 1/2~2/3 thickness of slab.
Described high-precision optical instrument base frame welding technique, welding is using group to positioning principle：After first lower
On, it is short after first growing, it is rear outer in elder generation.
Described high-precision optical instrument base frame welding technique, welding sequence principle：First short and then long, in elder generation
It is outer afterwards, symmetrical welding, angle welding transverse presentation bottoming.
Advantages of the present invention and beneficial effect are：
1. the present invention by rationally designing welding groove, adjusts welding sequence, the methods of selecting appropriate welding rod,
Quality weld is formed, fully controls welding deformation, by rationally designing post weld heat treatment technique, effectively removes weldering
Power is scooped out, ensures product size stability and dimensional accuracy.
2. present invention optimization welding parameter, is exported using less heat input, improves speed of welding, reduce by welding
Caused heat is connect, to reach the effect for reducing welding deformation.
3. the present invention provides a kind of feasibility for the welding of high-precision optical instrument base framework, break and welded with other
Restriction of the method to sheet metal thickness is connect, the welding for the stainless steel materials structural member of thicker (more than 50mm)
Reference is provided.
4. the present invention solves, high-precision optical instrument base frame welding precision is low, and the welding of slab stainless steel frame becomes
Shape, by the formulation process of rational technology, carried for high-precision optical instrument base frame welding is successfully welded
For reference.Soldering stainless steel sheet material is thicker, and assembling precision requires high before weldering, and welding capacity is big and requires to ensure framework
Post welding distortion amount is small, and discharges the internal stress as caused by welding, ensures the dimensional accuracy of optical instrument base framework
And stability.
Brief description of the drawings：
Fig. 1 a~Fig. 1 b are the schematic diagram of high-precision optical instrument base framework.Wherein, Fig. 1 a are front view,
Fig. 1 b are side view.
Fig. 2 is high-precision optical instrument base framework isometric views.
It is 1. chassis base in figure；2.~it is 4., 8. main side support plate；5. it is frame of reference plane；⑦、⑨
For buck plate；⑥、For secondary support side plate.
Embodiment：
In specific implementation process, the application of welding procedure of the present invention is high-precision optical instrument in equipment manufacturing field
The welding of device base framework provides reference value, using traditional welding procedure, realizes low-cost high-efficiency
Complete the welding of high precision part, it is proposed that the welding principle of precision optical instrument framework, give removal
The heat treatment method and technique of large-scale slab stainless steel welding stress.It is stainless using manual electric arc welding, welding 304
Base steel seat frame, the welding procedure include pre-welding treatment, welding process and post weld heat treatment, and detailed process is such as
Under：
1. according to different plates thickness, different welding point types, different grooves and size, groove bag are selected
U-shaped groove, V-butt, single V-butt are included, ensures that weld seam reaches the depth of weld of 1/2~2/3 thickness of slab.
2. welding preparation：Welding region and groove, welding rod pre-heating drying are wiped with acetone, is incubated in 150 DEG C of guarantors
It is standby in warm bucket.The used 304 stainless steel electrode trade mark：E308-15, core diameter：E308-15
The chemical composition of welding rod is as follows：C：0.08；Si：0.90；Mn：0.5~2.5；Ni：9.0~11.0；Cr：
18.0~21.0；Mo：0.75；S：≤0.030；P：≤0.040；Fe：Surplus.
3. during welding, it then follows the principle of symmetrical welding, uniform welding stress, makes welding deformation to greatest extent
Control minimum.Electric power polarity：DC reverse connection, welding process technological parameter are：250~280A of welding current,
Weldingvoltage：28~32V, speed of welding：280~320mm/min.Strict control interlayer temperature is at 150 DEG C
Hereinafter, during welding ending, arc crater is filled up, to surface overlap, welding slag carries out grinding process.
Hydrogen and destressing 4. postwelding fully disappears, Technology for Heating Processing are：400~420 DEG C are warming up to stove, insulation
2h, continuing to heat, heated up with stove, be heated to 880 ± 10 DEG C, be incubated 2h, furnace cooling, temperature is down to 300~
350 DEG C, air cooling of coming out of the stove.
With reference to embodiments to the further detailed description of the present invention.
As shown in Fig. 1 a~Fig. 1 b, the welding of high-precision optical instrument base framework is welded by 13 kinds of veneers,
1. chassis base is 2 pieces, 2. master supporting plate is 2 pieces, 3. master supporting plate is 4 pieces, 4. master supporting plate is
4 pieces, 5. frame of reference plane is 2 pieces, 6. secondary support side plate is 4 pieces, and 7. buck plate is 2 pieces, master branch
8. fagging is 4 pieces, 9. buck plate is 2 pieces, secondary support side plateFor 2 pieces, secondary support side plateFor 2 pieces,
Secondary support side plateFor 8 pieces, secondary support side plateFor 2 pieces.The position relationship of number frame base is as follows：
In the least significant end of framework, 1. two chassis bases are be arranged in parallel, 1. each chassis base is vertically arranged above
2., 4., master supporting plate is 4. vertical to be set in parallel in the both sides of master supporting plate 2. to master supporting plate relatively；
9. the crown center of master supporting plate 2. is horizontally disposed with buck plate, the top both ends of master supporting plate 2. are vertical
Master supporting plate is set 3., 8. the top both ends of buck plate 9. are relative vertically to be arranged master supporting plate in parallel, master
Supporting plate is 8. 4. parallel with master supporting plate, master supporting plate 3. positioned at master supporting plate 8. with master supporting plate 4.
Between.
Every group of master supporting plate 8., master supporting plate 4., master supporting plate 3. form a common supporting construction,
Totally four supporting constructions；Two frame of reference planes are 5. horizontal across being arranged at the top of two supporting constructions respectively,
The top vertical of each frame of reference plane 5. sets time support side plate 6. and time support side plateSecondary support side plate
6. relative be set in parallel in time support side plateBoth sides；6. and time support side plate every group of time support side plateFormed
One common supporting construction, 7. totally two supporting constructions, each supporting construction top set buck plate.
The bottom of each frame of reference plane 5. is vertically with respect to time support side plate that be arranged in parallelSecondary support side plate
Bottom level time support side plate is setFrame of reference plane 5., secondary support side plateSecondary support side plateIt
Between time support side plate is set
5. and frame base wherein, frame basePostwelding is processed, it is desirable to flatness 0.03.Most thick substrate for 5.,
Its thickness 50mm；Most long substrate is 1. its length 1920mm.
As shown in Fig. 2 the group of high-precision optical instrument base frame welding is to the order of positioning：
Group is to positioning principle：Get on, get off, it is short after first growing, it is rear outer in elder generation.
Welding sequence principle：
(1) first short and then long, Reducing distortion；
(2) it is rear outer in elder generation, avoid interference with；
(3) symmetrical welding, internal stress and deformation are controlled；
(4) angle welding transverse presentation bottoming, horizontal level welding, weld seam are efficiently attractive in appearance.
Embodiment result shows that present invention process ensure that postwelding processing is basically unchanged shape, can solve group to fixed
The problems such as position precision, welding deformation, welding efficiency and welding bead quality, by selecting the change with lead frame material
Study the welding material of near, strength matching the manual electric arc welding of split-phase, it is ensured that weld strength；So as to lead to
Welding sequencing is crossed, can effectively control welding deformation amount.
Claims (8)
- A kind of 1. high-precision optical instrument base frame welding technique, it is characterised in that using manual electric arc welding, Weld 304 stainless steel base frameworks；The used 304 stainless steel electrode trade mark：E308-15, core diameter：Electric power polarity：DC reverse connection；The welding procedure includes pre-welding treatment, welding process and postwelding heat Processing, wherein welding process technological parameter are：250~280A of welding current, 28~32V of weldingvoltage, weldering Meet 280~320mm/min of speed.
- 2. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that By weight percentage, the chemical composition of E308-15 welding rods is as follows：C：0.08；Si：0.90；Mn：0.5~ 2.5；Ni：9.0~11.0；Cr：18.0~21.0；Mo：0.75；S≤0.030；P≤0.040；Fe：It is remaining Amount.
- 3. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that Manual electric arc welding is applied to the overall process of welding base framework.
- 4. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that Comprise the following steps that：(1) it is handled as follows before the weldering of manual electric arc welding：Weldment groove is cleared up with stainless steel brush and away from groove two Dirt in the range of the 30~50mm both sides of side；100~200 DEG C of drying of welding rod, and be incubated in heat-preserving container；(2) in the welding process of manual electric arc welding：Interlayer temperature is controlled at 100~150 DEG C；(3) postwelding of manual electric arc welding is handled as follows：During welding ending, arc crater is filled up, postwelding is disappeared Hydrogen processing and elimination welding stress processing.
- 5. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that Post weld heat treatment technique：400~420 DEG C are warming up to stove, soaking time 2h；Continue to heat, heated up with stove, 880 ± 10 DEG C are heated to, soaking time 2h；Furnace cooling, temperature are down to 300~350 DEG C, air cooling of coming out of the stove To room temperature.
- 6. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that According to different plates thickness, different welding point types select different grooves and size, and groove is U-shaped slope Mouth, V-butt or single V-butt, groove ensure that weld seam reaches the depth of weld of 1/2~2/3 thickness of slab.
- 7. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that Welding is using group to positioning principle：Get on, get off, it is short after first growing, it is rear outer in elder generation.
- 8. according to the high-precision optical instrument base frame welding technique described in claim 1, it is characterised in that Welding sequence principle：First short and then long, in elder generation after outer, symmetrical welding, angle welding transverse presentation bottoming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610430238.7A CN107511563B (en) | 2016-06-16 | 2016-06-16 | welding process for high-precision optical instrument base frame |
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|---|---|---|---|
| CN201610430238.7A CN107511563B (en) | 2016-06-16 | 2016-06-16 | welding process for high-precision optical instrument base frame |
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| CN107511563A true CN107511563A (en) | 2017-12-26 |
| CN107511563B CN107511563B (en) | 2019-12-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280869A (en) * | 2019-06-28 | 2019-09-27 | 沈阳富创精密设备有限公司 | A kind of solar energy steel plate plated film cavity welding technique |
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| JPS5545555A (en) * | 1978-09-25 | 1980-03-31 | Hitachi Zosen Corp | Welding method of austenitic stainless steel |
| US5440090A (en) * | 1993-06-07 | 1995-08-08 | Atlantic Richfield Company | Duplex stainless steel welding method |
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| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN102019485A (en) * | 2009-09-23 | 2011-04-20 | 宋卫国 | Welding method of duplex stainless steels |
| CN102922083A (en) * | 2012-11-19 | 2013-02-13 | 江苏科技大学 | Welding method of nuclear grade stainless steel |
| CN105127562A (en) * | 2015-09-30 | 2015-12-09 | 青岛兰石重型机械设备有限公司 | Method for welding dissimilar material welded joint of composite plate |
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2016
- 2016-06-16 CN CN201610430238.7A patent/CN107511563B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545555A (en) * | 1978-09-25 | 1980-03-31 | Hitachi Zosen Corp | Welding method of austenitic stainless steel |
| US5440090A (en) * | 1993-06-07 | 1995-08-08 | Atlantic Richfield Company | Duplex stainless steel welding method |
| CN101628357A (en) * | 2009-08-05 | 2010-01-20 | 南通明德重工有限公司 | Butt-welding process of two kinds of tubes |
| CN102019485A (en) * | 2009-09-23 | 2011-04-20 | 宋卫国 | Welding method of duplex stainless steels |
| CN101913012A (en) * | 2010-08-11 | 2010-12-15 | 南京宝色股份公司 | Two phase stainless steel submerged-arc welding SAW welding procedure |
| CN102922083A (en) * | 2012-11-19 | 2013-02-13 | 江苏科技大学 | Welding method of nuclear grade stainless steel |
| CN105127562A (en) * | 2015-09-30 | 2015-12-09 | 青岛兰石重型机械设备有限公司 | Method for welding dissimilar material welded joint of composite plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280869A (en) * | 2019-06-28 | 2019-09-27 | 沈阳富创精密设备有限公司 | A kind of solar energy steel plate plated film cavity welding technique |
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Effective date of registration: 20201119 Address after: 226500 South Wenhui Road, West Shuangfu road and East Jinchen Road, high tech Zone, Nantong City, Jiangsu Province Patentee after: Nantong Fuchuan Precision Manufacturing Co., Ltd Address before: Feiyun Road Shenyang City, Liaoning province 110168 Hunnan New District No. -1 18 Patentee before: Shenyang Fortune Precision Equipment Co.,Ltd. |
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