Electroslag welding equipment

Abstract

To improve the flux supply method in electroslag welding. [Solution] The electroslag welding apparatus 1 comprises a flux supply device 30 that supplies flux into the groove 6, and a control unit 100 that controls the flux supply device 30. The control unit 100 calculates the initial amount of flux to be supplied to the groove 6 based on information about the groove cross-sectional area when forming a slag bath 50 in the groove 6, and controls the supply of that initial amount of flux into the groove 6.

Claims

1. Electroslag welding apparatus, A flux supply device that supplies flux into the groove, The system includes a control unit for controlling the flux supply device, The control unit, When forming a slag bath in the groove, the initial amount of flux to be injected is calculated based on the groove cross-sectional area information obtained from the plate thickness of the base material, the face gap of the groove, and the root gap of the groove. An electroslag welding apparatus characterized by controlling the supply of the initial amount of flux into the groove.

2. The control unit, The electroslag welding apparatus according to claim 1, characterized in that the supply of the initial amount of flux to the groove is controlled by supplying the flux to the groove multiple times.

3. An electroslag welding apparatus, A flux supply device that supplies flux into the groove, The system includes a control unit for controlling the flux supply device, The control unit, When forming a slag bath in the groove, the initial amount of flux to be added is calculated using the following formula based on the information of the groove cross-sectional area. An electroslag welding apparatus characterized by controlling the supply of the initial amount of flux into the groove. Initial input amount = Input amount calculation coefficient × Groove cross-sectional area × Equipment configuration difference correction coefficient

4. A sliding plate which is one of the multiple plate materials that constitute the groove, It comprises a welding torch and a liftable trolley to which the sliding plate is fixed, The sliding plate has grooves formed on the surface on the groove side, The control unit, Based on the information regarding the width of the sliding plate groove, the amount of additional flux to be added is calculated. The electroslag welding apparatus according to any one of claims 1 to 3, characterized in that control is performed to supply the additional amount of flux into the groove each time the lifting distance of the trolley reaches a preset distance.

5. The electroslag welding apparatus according to claim 4, characterized in that the amount of additional input is calculated by the following formula. Additional input amount = Standard slag discharge amount × (Sliding plate groove width / Standard groove width) × Set distance

6. Electroslag welding apparatus, A flux supply device that supplies flux into the groove, A control unit that controls the flux supply device, A sliding plate which is one of the multiple plate materials that constitute the groove, The system comprises a welding torch and a liftable trolley to which the sliding plate is fixed. The sliding plate has grooves formed on the surface on the groove side, The control unit, Based on the information regarding the width of the sliding plate groove, the amount of additional flux to be added is calculated. An electroslag welding apparatus characterized by performing control to supply the additional amount of flux into the groove each time the lifting distance of the trolley reaches a preset distance.

7. The electroslag welding apparatus according to claim 6, characterized in that the amount of additional input is calculated by the following formula. Additional input amount = Standard slag discharge amount × (Sliding plate groove width / Standard groove width) × Set distance

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