A gas buoyancy assisted welding device with gas wall sealing and its application method
An auxiliary welding and gas wall technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., can solve the problem of unmaintainable air pressure, and achieve the effect of reducing the difficulty of assembly, facilitating welding with welding, and stabilizing the air pressure in the air chamber.
Active Publication Date: 2020-08-11
HUNAN UNIV
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Problems solved by technology
[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to solve the problem that the air pressure cannot be maintained due to insufficient sealing when assembly errors such as wrong sides occur on the test piece through indirect contact.
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Embodiment Construction
[0035] The following will be attached Figure 1-8 The technical scheme of the present invention will be described in detail.
[0036] Such as Figure 1 to 4 As shown, this embodiment provides an air-wall sealed gas buoyancy assisted welding device, which includes an air cushion 1 and an air chamber 2; wherein the air cushion 1 includes a sliding layer 101, an insulation layer 102, an inflatable layer 103, a vent 104, The air pressure sensor 105, the air chamber 2 includes an air inlet 201, a constant flow regulating valve 202, a constant flow regulating valve 203, an air outlet 204, and an air pressure sensor 205.
[0037] In the air cushion 1, the sliding layer 101 is formed by mixing a large amount of graphite powder and an adhesive, and is uniformly coated on the heat insulating layer 102. The main component of the thermal insulation layer 102 is ceramic fiber, which is bonded on the upper plane of the inflatable layer. The inflatable layer 103 is provided with an inflatable p...
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The invention provides a gas buoyancy auxiliary welding device for air wall sealing. The gas buoyancy auxiliary welding device comprises an air cushion (1) and an air chamber (2), wherein the air cushion (1) comprises a sliding layer (101), a heat insulation layer (102), an inflating layer (103), an air vent (104) and an air pressure sensor (105), and the air chamber (2) comprises an air inlet (201), a constant flow valve (202), a solenoid valve (203), an air outlet (204) and an air pressure sensor (205). According to the gas buoyancy auxiliary welding device for air wall sealing, a moving device following a welding joint is additionally arranged outside the air chamber, in this way, a relatively stable air pressure can be maintained at the bottom of a weld pool during the welding processof large members to hold up the weld pool. The air chamber is not in direct contact with a welding seam of a specimen, and air flow in the air chamber is prevented from flowing out by the way of spraying the air flow in to stabilize the air pressure of the air chamber.
Description
Technical field [0001] The invention relates to a laser welding technology, in particular to a gas wall sealed gas buoyancy auxiliary welding device and a use method. Background technique [0002] Laser welding is an important field of laser technology application. It has the advantages of small heat input, high welding accuracy, low residual stress, large aspect ratio, easy automatic control, etc., and has been widely developed and applied, especially in the welding field of difficult-to-weld materials and special structures. It has been successfully applied in Aviation, aerospace, automotive, shipbuilding, electronics, nuclear power and other manufacturing fields have received great attention from countries all over the world. With the development of laser technology, the power that lasers can reach is getting higher and higher, and the thickness that a single laser can weld is also getting larger. However, as the welding thickness increases, the gravity on the lower surface ...
Claims
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IPC IPC(8): B23K26/21B23K26/70
Inventor 陈根余钟沛新陈飞
Owner HUNAN UNIV