CN109865966A - A kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method - Google Patents
A kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method Download PDFInfo
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- CN109865966A CN109865966A CN201910126897.5A CN201910126897A CN109865966A CN 109865966 A CN109865966 A CN 109865966A CN 201910126897 A CN201910126897 A CN 201910126897A CN 109865966 A CN109865966 A CN 109865966A
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- water
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- copper lining
- cooling
- welding
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Abstract
The invention belongs to welding technology fields, and in particular to a kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method.The device inside copper lining by leading to recirculated cooling water and protection gas; it ensure that the good welding fabrication effect of workpiece to be welded; it realizes welding deformation to reduce, the raising of liner service life, prevent many beneficial effects such as back of weld oxide inclusion, weld grain refinement, the raising of weld seam tensile strength, is suitable for various arc welding methods.
Description
Technical field
The invention belongs to welding technology fields, and in particular to a kind of to fill with the single welding copper lining of water cooling and back-protective
It sets and corresponding welding method.
Background technique
It is limited by the factors such as welding structure and welding position, part weld seam can only use single face welding and double face shaping technology.
Related data and practice have shown that, production efficiency can be improved three times or so by single face welding and double face shaping technology, save 10% material
Material and 50% electric energy.Common welding backing can be divided into ceramic substrate and copper lining, wherein making pottery according to the difference of material
Although ceramic liner pad is most widely used, but be used only once, and causes production cost higher；Copper lining used at present does not weld
Oxidant layer, when processing aluminium alloy weldment, sealing run cannot be protected, it is easy to cause to be mingled with.
Chinese patent CN207205671U discloses a kind of single-side welding double-side forming back-protective molding machine, although
The processes such as molding, protection, cooling are realized simultaneously, but do not have cover board above protective gas channel, and protection gas gas outlet is direct
Below welding bead, the protective gas in channel necessarily blows molten bath and causes weld seam discontinuous.Chinese patent CN103586622A
A kind of welding recirculated water cooling cushion device is disclosed, which only has the function of recirculated water cooling, sealing run cannot be protected to lead
It causes welding effect bad, still needs to improve.In addition to this, forming tank is easy to burn existing copper lining after this multiple use
Damage, service life decline to a great extent.Therefore, develop a kind of structure be simple and convenient to operate, long service life, back of work appearance of weld matter
It measures, the single welding brass cushion device of back of weld oxidation can be prevented necessary.
Summary of the invention
Have the function of to force molding it is an object of the invention to solving existing copper lining only, be easily mingled with, the deficiencies of service life is short,
A kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method are provided.By uniqueness, cleverly
Design prevents sealing run oxidation from making so that the device can effectively reduce seam deformation during single face welding and double face shaping
At being mingled with, while improving the service life of weldquality and copper lining.To achieve the above object, the technology used in the present invention
Scheme is as follows:
A kind of single welding brass cushion device with water cooling and back-protective, including cushion device, water-circulating cooling device, guarantor
Protect gas feeder；The cushion device includes copper lining and upper cover plate, and cooling water hole, protection gas are provided on the copper lining
Venthole and shaping groove；The water-circulating cooling device and protection gas feeder respectively on copper lining cooling water hole and
Gas venthole is protected to be connected, for carrying out cooling and protection against oxidation to copper lining and workpiece to be welded；The upper cover plate is fixed on
Above copper lining shaping groove, for buffer protection gas and positioning workpiece to be welded.
Further, the quantity of the protection gas venthole is at least 1.The one end and protection gas for protecting gas venthole supply
Device of air is connected for air inlet, and the other end is located in the shaping groove below upper cover plate.
Further, the quantity of the cooling water hole is at least 2.Positioned at copper lining both ends cooling water hole respectively with follow
The inlet and outlet of ring water cooling plant are connected, and realize recycling for cooling water.
Further, the water-circulating cooling device includes water pump, water tank, water pipe and regulating valve, and water pump passes through water pipe for water
Water in case is delivered to the cooling water hole of copper lining one end, and cooling water flow back into water by pipeline after the outflow of the copper lining other end
In case, the regulating valve on pipeline is set for changing the uninterrupted of cooling water, to control the cooling velocity of copper lining.
Further, the protection gas feeder includes gas cylinder, air valve and air supply pipe, and the protection gas in gas cylinder passes through gas
The protection gas venthole of copper lining one end is delivered to after valve, the protection gas ventilation being then located at below upper cover plate in shaping groove
It is escaped at hole, is capped after plate blocks buffering and fills entire shaping groove.
Further, shaping groove is arc-shaped, and depth H is between 0.3mm-3mm, width D1It is thick with workpiece to be welded
Spending δ, there are following relationships: D1=(1.5 δ+3) ± (0-10 δ %).
Further, the radius R of cooling water hole and protection gas venthole1And R2It is cold in copper lining between 4mm-6mm
But water flow and protection air-flow amount are respectively 3-5L/min and 1.5-3L/min.
Further, the upper cover plate is copper material, with a thickness of 0.3mm-1mm, width 15mm-30mm, length
Spend it is equal with copper lining width so that upper cover plate covering copper lining one end shaping groove, realize protection gas buffering with
The double action of workpiece positioning.
The method welded using the above-mentioned single welding brass cushion device with water cooling and back-protective, including following step
It is rapid: two pieces of welded workpieces are placed on above copper lining, are positioned by upper cover plate, make weld seam be located at shaping groove just on
Side, then fixes；When cooling water and one section of gas of protection are passed through into the cooling water hole of copper lining, protection gas venthole respectively
Between, then start to weld.
Further, wire feed rate control is controlled in 7.0m/min-9.0m/min, speed of welding in 60cm/ when welding
Min-80cm/min, angle of welding gun lean forward 5 ° -15 °, and workpiece to be welded can be the materials such as non-ferrous metal, stainless steel, carbon steel.
Single welding brass cushion device provided by the invention has the advantages that compact-sized, light-weight, processing cost is low etc., copper removal
Liner needs to customize outside processing, and remaining part can select the standard component directly returned from market purchasing, therefore the device is easy to
Realize engineering application.Compared with currently used copper lining, on the one hand the present invention opens two symmetrically in existing copper mats inside
For longitudinally rounded through-hole for the cooling water that circulates, can take away welding heat rapidly makes copper lining be quickly cooled down cooling, is improving copper
Welding deformation can be reduced again while padding service life；On the other hand the present invention only has circulation for CN103586622A
Water cooling plant does not have the deficiency of back-protective function, and right angle pylone is opened inside copper lining for conveying pure argon and forms back side guarantor
Shield, makes to remain metastable inert gas environment in forming tank, and back of work weld seam is not oxidized causes to be mingled with for protection,
Finally improve weld properties.In addition to this, the present invention is located at welding bead also for CN207205671U protective gas channel
Lower section easily causes the discontinuous disadvantage of weld seam, and the property improved is provided with upper cover plate, which is located at the protection of copper lining one end
Right above gas gas outlet, it can play and treat the multi-efficiency that welder's part carries out positioning and buffer protection gas.The device is practical to answer
Used time is practical and convenient, and comparative test shows that it can greatly improve the welding quality of single face welding and double face shaping.
Detailed description of the invention
Fig. 1 is the overall structure diagram of apparatus of the present invention；
Fig. 2 is the metallographic microscope of 1 gained weld seam of comparative example of the present invention；
Fig. 3 is the metallographic microscope of 1 gained weld seam of the embodiment of the present invention.
Wherein, 1- air valve, 2- gas cylinder, 3- shaping groove, 4- air supply pipe, 5- upper cover plate, 6- protect gas venthole, and 7- is to be welded
Workpiece, 8- cooling water hole, 9- regulating valve, 10- copper lining, 11- fastening screw, 12- water pump, 13- water pipe, 14- water tank.
Specific embodiment
To make those of ordinary skill in the art fully understand technical solution of the present invention and beneficial effect, below in conjunction with specific
Embodiment is further described.
Device of the present invention is as shown in Figure 1.Workpiece to be welded used in each embodiment be size 3mm × 100mm ×
6061 aluminium alloys of 130mm, welding equipment are TPS400i LSC ADV, selectionER5183 welding wire.Welding examination
It is as shown in table 1 to test parameter:
1 soldering test parameter list of table
| Wire feed rate | Speed of welding | Arc length amendment | Frequency | Angle of welding gun |
| 8.5mm/min | 65cm/min | 3% | 3.0Hz | It leans forward 5 ° |
Comparative example 1
Copper lining forms groove width and selects D1=5mm, depth H=0.5mm, cooling water hole radius R1=6mm, venthole half
Diameter R2=4mm, cooling water flow V1=0 (obstructed cooling water), protection air-flow amount V2=2.5L/min, in advance to brass before welding
Pad forming tank ventilation 0.5-1min.
Comparative example 2
Copper lining forms groove width and selects D1=5mm, depth H=0.5mm, cooling water hole radius R1=6mm, venthole half
Diameter R2=4mm, cooling water flow V1=3-5L/min, protection air-flow amount V2=0 (obstructed protection gas).
Embodiment 1
Copper lining forms groove width and selects D1=5mm, depth H=0.5mm, cooling water hole radius R1=6mm, venthole half
Diameter R2=4mm, cooling water flow V1=3-5L/min, protection air-flow amount V2=2.5L/min is formed to copper lining in advance before welding
Slot ventilation 1-2min.
The performance of 1 gained welding point of comparative example 1-2 and embodiment is as shown in table 2.
2 comparative example of table and embodiment property of welded joint parameter list
| Seam deformation angle | Sealing run color | Tensile strength | |
| Comparative example 1 | About 1.66 ° | Silvery white | About 227.7MPa |
| Comparative example 2 | About 1.09 ° | Silver gray | About 238.3MPa |
| Embodiment 1 | About 1.06 ° | Silvery white | About 239.9MPa |
As shown in Table 2, mats inside, which leads to cooling water, can effectively reduce seam deformation angle, and lead to below upper cover plate
Protection gas can effectively prevent sealing run oxidation (discoloration).This illustrates apparatus of the present invention and corresponding welding method in practical application
In be effective.
The metallographic microscope difference of 1 weld seam of comparative example 1 and embodiment is as Figure 2-3.By comparison it is found that metallographic group in Fig. 3
It knits more tiny, illustrates that mats inside leads to cooling water and can refine weld grain, improve mechanical property, tensile strength improves about
12MPa。
Claims (10)
1. a kind of single welding brass cushion device with water cooling and back-protective, it is characterised in that the covering device includes liner dress
It sets, water-circulating cooling device, protection gas feeder；The cushion device includes copper lining and upper cover plate, is set on the copper lining
It is equipped with cooling water hole, protection gas venthole and shaping groove；The water-circulating cooling device and protection gas feeder respectively with
Cooling water hole on copper lining is connected with protection gas venthole, for carrying out cooling and anti-oxidation guarantor for copper lining and workpiece to be welded
Shield；The upper cover plate is fixed on above copper lining shaping groove, for buffer protection gas and positioning workpiece to be welded.
2. single welding brass cushion device as described in claim 1, it is characterised in that: the quantity of the protection gas venthole is at least
It is 1, wherein protection gas venthole one end is connected with protection gas feeder for air inlet, the other end is located at below upper cover plate
In shaping groove.
3. single welding brass cushion device as described in claim 1, it is characterised in that: the quantity of the cooling water hole is at least 2
It is a, wherein the cooling water hole for being located at copper lining both ends is connected with the inlet and outlet of water-circulating cooling device respectively, realize cold
But water recycles.
4. single welding brass cushion device as described in claim 1, it is characterised in that: the water-circulating cooling device include water pump,
Water tank, water pipe and regulating valve, wherein the water in water tank is delivered to the cooling water hole of copper lining one end by water pipe by water pump, cooling
Water is flow back into water tank after the outflow of the copper lining other end by pipeline, and the regulating valve on pipeline is arranged in for changing cooling water
Uninterrupted, to control the cooling velocity of copper lining.
5. single welding brass cushion device as described in claim 1, it is characterised in that: the protection gas feeder includes gas
Bottle, air valve and air supply pipe, wherein the protection gas in gas cylinder is delivered to the protection gas venthole of copper lining one end after air valve, so
Be located at below the upper cover plate at the protection gas venthole in shaping groove afterwards and escape, be capped plate block fill after buffering entirely at
Type groove.
6. single welding brass cushion device as described in claim 1, it is characterised in that: shaping groove be it is arc-shaped, depth H exists
Between 0.3mm-3mm, width D1There are following relationships: D with thickness of workpiece δ to be welded1=(1.5 δ+3) ± (0-10 δ %).
7. single welding brass cushion device as described in claim 1, it is characterised in that: the half of cooling water hole and protection gas venthole
Diameter R1And R2Between 4mm-6mm, cooling water flow and protection air-flow amount are respectively 3-5L/min and 1.5- inside copper lining
3L/min。
8. single welding brass cushion device as described in claim 1, it is characterised in that: the upper cover plate is copper material, thickness
For 0.3mm-1mm, width 15mm-30mm, length is equal with copper lining width.
9. the method welded using the single welding brass cushion device with water cooling and back-protective described in claim 1,
It is characterized in that being positioned by upper cover plate, making to weld the following steps are included: two pieces of welded workpieces are placed on above copper lining
Seam is located at right above shaping groove, then fixes；Cooling is passed through into the cooling water hole of copper lining, protection gas venthole respectively
Water and protection gas for a period of time, then start to weld.
10. method as claimed in claim 9, it is characterised in that: wire feed rate control is in 7.0m/min-9.0m/ when welding
Min, speed of welding are controlled in 60cm/min-80cm/min, and angle of welding gun leans forward 5 ° -15 °, and workpiece material to be welded, which is selected from, coloured gold
The metal or alloy such as category, stainless steel, carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126897.5A CN109865966B (en) | 2019-02-20 | 2019-02-20 | Single-side copper pad welding device with water cooling and back protection functions and corresponding welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126897.5A CN109865966B (en) | 2019-02-20 | 2019-02-20 | Single-side copper pad welding device with water cooling and back protection functions and corresponding welding method |
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| Publication Number | Publication Date |
|---|---|
| CN109865966A true CN109865966A (en) | 2019-06-11 |
| CN109865966B CN109865966B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910126897.5A Active CN109865966B (en) | 2019-02-20 | 2019-02-20 | Single-side copper pad welding device with water cooling and back protection functions and corresponding welding method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449706A (en) * | 2019-08-21 | 2019-11-15 | 无锡市创新低温环模设备科技有限公司 | A kind of aluminum alloy piping welding bead formed on back protective device |
| CN110524146A (en) * | 2019-09-05 | 2019-12-03 | 广西工业技师学院(广西石化高级技工学校) | A kind of titanium alloy test plate (panel) welding atmosphere protection setting device |
| CN111515567A (en) * | 2020-04-15 | 2020-08-11 | 常州博瑞电力自动化设备有限公司 | Longitudinal seam welding protection structure, barrel longitudinal seam welding device and corresponding welding method |
| CN111889939A (en) * | 2020-07-30 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Device for controlling longitudinal welding deformation of cylinder |
| CN112247320A (en) * | 2020-10-20 | 2021-01-22 | 上海东鼎钢结构有限公司 | Large-caliber duplex stainless steel butt-joint protection welding device |
| CN112846575A (en) * | 2020-12-24 | 2021-05-28 | 上海交通大学 | Nickel-based 690 alloy U-shaped channel surfacing layer circulating water cooling device and application thereof |
| CN113102874A (en) * | 2021-05-07 | 2021-07-13 | 哈尔滨工业大学 | Double-circulation temperature-control friction stir welding device and welding method |
| CN113894392A (en) * | 2021-09-30 | 2022-01-07 | 北京博清科技有限公司 | Welding process method for overhead welding and bottoming |
| CN114799589A (en) * | 2022-05-10 | 2022-07-29 | 武汉一冶钢结构有限责任公司 | Plate welding deformation prevention device and plate welding deformation prevention method |
| CN114799517A (en) * | 2022-04-25 | 2022-07-29 | 中国科学院上海光学精密机械研究所 | Sheet lamination combined laser welding method and device |
| CN115091044A (en) * | 2022-08-26 | 2022-09-23 | 成都航天万欣科技有限公司 | Welding tool and welding method for aluminum alloy thin-wall box |
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| CN110449706A (en) * | 2019-08-21 | 2019-11-15 | 无锡市创新低温环模设备科技有限公司 | A kind of aluminum alloy piping welding bead formed on back protective device |
| CN110524146A (en) * | 2019-09-05 | 2019-12-03 | 广西工业技师学院(广西石化高级技工学校) | A kind of titanium alloy test plate (panel) welding atmosphere protection setting device |
| CN111515567B (en) * | 2020-04-15 | 2022-03-08 | 常州博瑞电力自动化设备有限公司 | Longitudinal seam welding protection structure, barrel longitudinal seam welding device and corresponding welding method |
| CN111515567A (en) * | 2020-04-15 | 2020-08-11 | 常州博瑞电力自动化设备有限公司 | Longitudinal seam welding protection structure, barrel longitudinal seam welding device and corresponding welding method |
| CN111889939A (en) * | 2020-07-30 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Device for controlling longitudinal welding deformation of cylinder |
| CN112247320A (en) * | 2020-10-20 | 2021-01-22 | 上海东鼎钢结构有限公司 | Large-caliber duplex stainless steel butt-joint protection welding device |
| CN112846575A (en) * | 2020-12-24 | 2021-05-28 | 上海交通大学 | Nickel-based 690 alloy U-shaped channel surfacing layer circulating water cooling device and application thereof |
| CN113102874A (en) * | 2021-05-07 | 2021-07-13 | 哈尔滨工业大学 | Double-circulation temperature-control friction stir welding device and welding method |
| CN113102874B (en) * | 2021-05-07 | 2022-05-10 | 哈尔滨工业大学 | Double-circulation temperature-control friction stir welding device and welding method |
| CN113894392A (en) * | 2021-09-30 | 2022-01-07 | 北京博清科技有限公司 | Welding process method for overhead welding and bottoming |
| CN114799517A (en) * | 2022-04-25 | 2022-07-29 | 中国科学院上海光学精密机械研究所 | Sheet lamination combined laser welding method and device |
| CN114799589A (en) * | 2022-05-10 | 2022-07-29 | 武汉一冶钢结构有限责任公司 | Plate welding deformation prevention device and plate welding deformation prevention method |
| CN114799589B (en) * | 2022-05-10 | 2023-11-07 | 武汉一冶钢结构有限责任公司 | Plate welding anti-deformation device and plate welding anti-deformation method |
| CN115091044A (en) * | 2022-08-26 | 2022-09-23 | 成都航天万欣科技有限公司 | Welding tool and welding method for aluminum alloy thin-wall box |
| CN115091044B (en) * | 2022-08-26 | 2022-12-20 | 成都航天万欣科技有限公司 | Welding tool and welding method for aluminum alloy thin-wall box |
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