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| Device for induction welding |
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| Process for separating mineral wool fibers from nonfibrous materials |
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| Contact sequencing arrangement for rotary double break switch |
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| Induction cartridge |
| In the present invention, an induction cartridge is formed as a module containing induction heater(... |
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| Electric range surface element |
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| Exciting arrangement for induction heating process |
| Accordingly, an essential object of the present invention is to provide an improved exciting ... |
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| Automatic roux maker |
| OF THE PREFERRED EMBODIMENT Cooker As shown primarily in FIGS. 1 and 3, the preferred embodiment ... |
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| Stovetop corn popper |
| OF THE PREFERRED EMBODIMENT Turning now to the drawings, there is shown in FIG. 1 a corn popper 16 ... |
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Flux-cored wire
| Details |
Inventors: Omori, Jimpei; Kono, Mitsuo; Takeuchi, Torataro; Oikawa, Noboru;
Assignee: Tsukishima Kikai Co., Ltd. (Tokyo, JA)
Primary Examiner: Truhe; J. V.
Assistant Examiner: Herkamp; N. D.
Attorney, Agent or Firm: Greigg; Edwin E.
A flux-cored wire for electrogas arc welding includes a sheath of steel hoop made of material selected from a group of materials consisting of mild steel and stainless steel. A flux is provided internally within the coating. The flux contains CaF.sub.2, Fe--Si, SiO.sub.2, CaCO.sub.3, Cr and Mn. The flux may also contain Fe, Fe--Nb, Me--Mo and/or Me--Cu. |
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DETAILED DESCRIPTION It is an object of the present invention to provide a flux-cored wire useful for electrogas arc welding which eliminates the aforementioned disadvantages and drawbacks.
The flux-cored wire of the present invention is provided with an alloying agent, deoxidizing agent, slag forming agent, etc.
, for the automatic gas shielded vertical arc welding of austenitic stainless steel having a metallurgically preferable jointing performance.
The process can be denominated an electrogas arc welding process.
The foregoing object, as well as others which are to become apparent from the text which follows, is accomplished in accordance with the present invention by providing a flux-cored wire for electrogas arc welding of austenitic stainless steel which wire includes a sheath of steel hoop made from material selected from a group of materials consisting of mild steel and stainless steel.
A flux is provided internally within the sheath.
The flux contains from substantially 5% to substantially 20% CaF.
sub.
2, from substantially 1% to substantially 20% Fe-Si, from substantially 1% to substantially 5% SiO.
sub.
2, from substantially 1% to substantially 6% CaCO.
sub.
3, from substantially 10% to substantially 70% Cr, from substantially 5% to substantially 40% Ni, from substantially 0% to substantially 70% Fe and from substantially 1% to substantially 20% Mn, by weight.
More specific embodiments of the flux-cored wire may also include from substantially 1% to substantially 25% Fe-Nb, or from substantially 3% to substantially 30% Me--Mo, or from substantially 5% to substantially 30% Me--Cu, by weight.
The flux-cored wire of the present invention is for the welding of austenitic stainless steel which is easily weldable as aforementioned using the flux-cored wire according to the present invention.
When used for electrogas welding sufficient consideration should be given to the characteristics of a power supply, the composition of shielded gas, the welding jig and tools, the transferring shape of the arc, etc
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