Abstract: Disclosed is an austenitic welding material which contains C: 0.01 wt % or less, Si: 0.5 wt % or less, Mn: 0.5 wt % or less, P: 0.005 wt % or less, S: 0.005 wt % or less, Ni: 15 to 40 wt %, Cr: 20 to 30 wt %, N: 0.01 wt % or less, O: 0.01 wt % or less, and the balance of Fe and inevitable impurities, wherein the content of B contained as one of the inevitable impurities in the welding material is 3 wt ppm or less, and the total content of C, P, S, N and O in the welding material is 0.02 wt % or less.

Abstract: Disclosed is an austenitic welding material which contains C: 0.01 wt % or less, Si: 0.5 wt % or less, Mn: 0.5 wt % or less, P: 0.005 wt % or less, S: 0.005 wt % or less, Ni: 15 to 40 wt %, Cr: 20 to 30 wt %, N: 0.01 wt % or less, 0: 0.01 wt % or less, and the balance of Fe and inevitable impurities, wherein the content of B contained as one of the inevitable impurities in the welding material is 3 wt ppm or less, and the total content of C, P, S, N and O in the welding material is 0.02 wt % or less.

Abstract: An austenitic stainless steel excellent in intergranular corrosion resistance and stress corrosion cracking resistance, comprising: C: 0.005 wt % or less; Si: 0.5 wt % or less; Mn: 0.5 wt % or less; P: 0.005 wt % or less; S: 0.005 wt % or less; Ni: 15.0 to 40.0 wt %, Cr: 20.0 to 30.0 wt %, N: 0.01 wt % or less; O: 0.01 wt % or less; and the balance of Fe and inevitable impurities, wherein the content of B included in the inevitable impurities is 3 wt ppm or less.

Abstract: A fuel injection control system for an engine having a plurality of cylinders includes a plurality of driver units for actuating fuel injection valves on the respective cylinders, a processing unit for starting processing operation in synchronism with a cycle of operation of the cylinders when the engine is in a normal operation mode, to compute times for which the fuel injection valves are to be opened based on an engine operating condition in the normal operation mode and to issue processed data, and for starting processing operation out of synchronism with the cycle of operation when the engine is in a particular operation mode, to compute times for which the fuel injection valves are to be opened based on an engine operating condition in the particular operation mode and to issue processed data, and a plurality of counters for successively opening the fuel injection valves through the driver units based on the processed data set in the counters and corresponding to the computed times from the processing m

Abstract: A fuel supply control method for electronically controlling the quantity of fuel being supplied to an internal combustion engine in synchronism with generation of pulses of a predetermined control signal, in response to a fuel increment gradually decreasing in value after termination of cranking of the engine. Immediately when the engine leaves a cranking state, an initial value of the fuel increment is set, which corresponds to a product obtained by multiplying the value of a fuel increasing coefficient decreasing in value as the engine temperature increases by the value of a coefficient being a function of the engine temperature. Subsequently, the thus set initial value of the fuel increment is decreased upon generation of each pulse of the above predetermined control signal until the thus decreased incremental value becomes equal to a value at which no substantial increase takes place in the fuel quantity being supplied to the engine.