CN217044974U - External flux type water-cooling welding device - Google Patents

Abstract

The utility model relates to an external welding flux formula water-cooling welding set, threaded connection is adopted with submerged arc welding rifle head (2) in conductive nozzle (1), welding rifle head (2) weld with welder mounting (5) integratively, cooling water pipe (3) welding is on submerged arc welding rifle head (2) external diameter lateral wall, cooling water pipe (3) both ends one side is the water inlet, the opposite side is the delivery port, fixation clamp (4) of cooling water pipe (3) outside installation, the long limit of fixation clamp (4) presss from both sides (7) with the adjustment and adopts the bolt fastening, the minor face of fixation clamp (4) is fixed fixation clamp (4) on welding rifle head (2), install welding rifle head (2) in the outside in welding flux pipe (8), adopt the bolt to press from both sides (7) with the adjustment and fixation clamp (4) are articulated together. The utility model discloses simple structure and easy dismounting, suitability are strong, have improved welded quality and welder's life-span, have improved productivity simultaneously.

Description

External flux type water-cooling welding device

The technical field is as follows:

the utility model relates to an external solder flux formula water-cooling welding set.

The background art comprises the following steps:

when the external flux type water-cooling welding device is used for overlaying the shell flange by submerged-arc welding, a contact tip of a submerged-arc welding gun is easy to damage, and the principle analysis of the submerged-arc welding is firstly carried out: submerged arc welding is also arc welding, and the arc welding is characterized in that metal is melted, and if the metal is not isolated from air in the melting process, redundant oxides exist in a welding seam, alloy elements are reduced, and excessive nitrides exist. In order to reduce the detrimental effects of oxygen and nitrogen, the metal of the molten assembly must be isolated from the atmosphere during welding. Submerged arc welding uses a flux to separate liquid metal from air by generated gas and slag. In addition, submerged arc welding requires that a welding piece has no oil, rust and moisture, oxide scales and sundries are removed at spot welding spots, and otherwise, air holes are generated inside the welding line and on the surface of the welding line. The flux has the function of isolating the generation of oxides, the covering height of the flux is different according to the welding of different parts, and the welding device stacks the flux through an external flux tube.

In actual production in a factory, the appearance of submerged arc welding is as follows: the welding gun has the advantages that the outlet of the contact tube is abraded, the wire feeding deflection is caused, the actual welding track deviates, the welding defects such as welding deflection or welding leakage are caused, the welding part does not meet the welding requirement, the cleanliness is not enough, the welding wire is adhered to the contact tube, the gun head is frequently replaced, the price is high, and the production cost is increased.

The invention content is as follows:

the utility model aims at providing an external solder flux formula water-cooling welding set improves welded quality and welder's life-span, and simple structure is reliable, and quick detachable is maintained, replaces parts atress such as bolt in the main pump, has avoided the damage of main pump part.

The technical scheme of the utility model is that: the utility model provides an external flux formula water-cooling welding set, conductive nozzle (1) adopts threaded connection with submerged arc welding rifle head (2), welding rifle head (2) and welder mounting (5) weld an organic whole, cooling water pipe (3) welding is on submerged arc welding rifle head (2) external diameter lateral wall, cooling water pipe (3) both ends one side is the water inlet, the opposite side is the delivery port, a fixation clamp (4) is installed in cooling water pipe (3) outside, the long limit of fixation clamp (4) adopts the bolt fastening with adjustment clamp (7), the minor face of fixation clamp (4) is fixed fixation clamp (4) on welding rifle head (2), flux pipe (8) are installed in welding rifle head (2) outside, adopt the bolt to articulate adjustment clamp (7) and fixation clamp (4) together.

The utility model discloses the theory of operation:

as shown in fig. 1: the external flux type water-cooling welding device is characterized in that the direction of a flux tube (8) is adjusted firstly according to different welding parts, the positions of an adjusting clamp (7) and a fixing clamp (4) are fixed by a connecting bolt (6), the height of a welding gun from a workpiece is adjusted by feeding cooling water, the extending length of a welding wire is about 10 times of the diameter of the welding wire, the optimal length is about 10 times, the heat dissipation performance of a contact tube is reduced due to the fact that the welding wire is too short in extending, and the welding wire is adhered to the contact tube. The welding is started. The utility model discloses the heat of contact tube department is cooled off with the water-cooling, prevents the contact tube adhesion, and the production of oxide when welding is controlled with the thickness of solder flux simultaneously reduces the production of bubble, improves welding quality.

The beneficial effects of the utility model are that:

(1) the utility model discloses constitute by welding rifle head, water cooling pipe, solder flux pipe, the heat of cooling contact tube when the welded prevents that the contact tube from gluing even, has improved welded quality and welder's life-span, has improved productivity simultaneously!

(2) The welding flux can be more evenly stacked by the external welding flux pipe, the thickness of the welding flux is mastered, the generation of oxides is isolated, bubbles are not easily generated, the structure is simple and reliable, the device is easy to disassemble and maintain, the stress of parts such as bolts in a main pump is replaced, and the damage of the parts of the main pump is avoided.

The utility model discloses, easy dismounting, application scope is wide, can be used to the different nuclear main pump shaft installations of piling type dismantlements, and is convenient for maintain, and the operation is reliable, and the safety in utilization degree is high.

Drawings

FIG. 1 is a schematic view of the overall structure of an external flux type water-cooling welding device

The specific implementation mode is as follows:

as shown in figure 1, the external flux type water-cooling welding device is characterized in that a contact nozzle 1 is in threaded connection with a submerged-arc welding gun head 2, the welding gun head 2 is welded with a welding gun fixing piece 5 into a whole, a cooling water pipe 3 is welded on the outer diameter side wall of the submerged-arc welding gun head 2, one side of each of two ends of the cooling water pipe 3 is provided with a water inlet, the other side of each of the two ends of the cooling water pipe 3 is provided with a water outlet, a fixing clamp 4 is installed on the outer side of the cooling water pipe 3, the long edge of the fixing clamp 4 is fixed with an adjusting clamp 7 through a bolt, the fixing clamp 4 is fixed on the welding gun head 2 through the short edge of the fixing clamp 4, a flux pipe 8 is installed on the outer side of the welding gun head 2, and the adjusting clamp 7 is hinged with the fixing clamp 4 through a bolt. The adjustment clamp can adjust the orientation of the flux tube 8.

Claims (1)

1. The utility model provides an external welding flux formula water-cooling welding set which characterized by: conductive nozzle (1) adopts threaded connection with submerged arc welding rifle head (2), welding rifle head (2) and welder mounting (5) weld integratively, cooling water pipe (3) welding is on submerged arc welding rifle head (2) external diameter lateral wall, cooling water pipe (3) both ends one side is the water inlet, the opposite side is the delivery port, fixation clamp (4) of cooling water pipe (3) outside installation, the long limit of fixation clamp (4) adopts the bolt fastening with adjustment clamp (7), the minor face of fixation clamp (4) is fixed fixation clamp (4) on welding rifle head (2), install welding gun head (2) in the outside welding flux pipe (8), adopt the bolt to press from both sides (7) and fixation clamp (4) articulated together with the adjustment.

Images