Abstract:
An electroslag welding nozzle having a guide opening toward the middle and wing bars extending out at different sides, the nozzle being enrobed with an adhering coating of electroslag welding flux. In the electroslag welding process the nozzle is stationary and greatly increases the thickness of permissible vertical welds which can be made with a single electrode without horizontal oscillation.
Abstract:
A pressure vessel with corrosion resistant lining and inexpensive overall is constructed in two steps. First, a thinwalled vessel is prepared from integrally clad plate by conventional means, the cladding thus being of controlled quality, thickness and well bonded to the backing metal. Then the thickness of the backing metal is built up to the desired dimension preferably by electroslag deposition in the continuous casting process. The electroslag layer bonds to the backing layer without penetrating to the inner layer, and thus preserves the corrosion resistance of the lining. Heavy tube sheets are prepared in similar manner by depositing additional backing metal behind a clad metal plate. We also have the possibility of using the side of the original clad sheet which is mild or low alloy wrought steel to make a mold or part of a mold against which the electroslag weld deposit is formed, such as by standing up the wrought clad sheets with the corrosion resisting layer outward and the wrought mild or low alloy steel layer facing inward to bond with the electroslag weld layer.
Abstract:
A pressure vessel with corrosion resistant lining and inexpensive overall is constructed in two steps. First a thinwalled vessel is prepared from integrally clad plate by conventional means, the cladding thus being of controlled quality, thickness and well bonded to the backing metal. Then the thickness of the backing metal is built up to the desired dimension preferably by electroslag deposition in the continuous casting process. The electroslag layer bonds to the backing layer without penetrating to the inner layer, and thus preserves the corrosion resistance of the lining. Heavy tube sheets are prepared in similar manner by depositing additional backing metal behind a clad metal plate.