Elbow filling alloy device and filling method thereof

Abstract

The invention discloses an alloy filling device for pipe bending. The alloy filling device comprises a control system, a low temperature alloy fusion bath, an alloy filling device body, a water bath device comprising a water bath with the water temperature controlled from 30 DEG C to 35 DEG C, a rotating work table and a press machine. A control switch electrically connected with the control system and used for controlling the flow of low temperature alloy is arranged at the discharge port of the alloy filling device body. The rotating work table is arranged in an inclined mode, the included angle between the plane where the rotating work table is located and the horizontal direction ranges from 15 degrees to 30 degrees, and a motor drives the rotating work table to rotate. A plurality of stations where pipe blanks are placed are arranged on the rotating work table in the circumferential direction, the station for filling in the rotating work table is located right below the discharge port, and the station for machining in the rotating work table is located close to the press machine. The rotating work table and the to-be-filled pipe blanks at the station for filling are soaked in the water bath. The alloy filling device has the advantages that the structure is compact, the temperature control effect is better, the low temperature alloy filling effect is better, the cooling mode is more reasonable, and the rejection rate of pipe bending can be controlled better.

Description

technical field [0001] The invention relates to the field of equipment for forming elbows, in particular to an alloy filling device for elbows and a filling method thereof. Background technique [0002] Tube bending technology is widely used in boiler and pressure vessel industries, automobile, aerospace, shipbuilding and other industries, in which the quality of tube bending directly affects the structural rationality, safety and reliability of products in these industries. Generally speaking, the bending radius of the ordinary pipe bending device pipe should be at least 1.1 times the outer diameter of the pipe, otherwise the pipe is prone to wrinkles, cracks, or even damage and fracture on the curved surface during the bending process. However, when forming metal pipes with a large degree of bending or forming pipes with special-shaped cross-sections, ordinary pipe bending technology is obviously difficult to meet the requirements, which requires the use of low-temperature...

AI Technical Summary

Problems solved by technology

But the problem is that temperature control is very important in the process of filling low-temperature alloys. If the temperature control is not good, the filled low-temperature alloys will be too soft, which will lead to poor support effect and easy wrinkling of the elbow; if the low-temperature alloys are too hard, it will As a result, the thin-walled pipe fittings are too brittle, and they are easy to be fractured when the bent pipe is formed, which will generate a lot of waste products

And the cooling method after the low-temperature alloy is filled is also very important. If the cooling is not good, the low-temperature alloy will solidify and shrink greatly, the pipe and the low-temperature alloy will be easily separated, the filling will not be tight, the bending deformation will be large, and the scrap rate will also be high

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