The invention provides a flux-cored wire for the all-position welding of an austenitic stainless steel, comprising flux powder and a stainless steel band for external use, wherein the weight of a flux powder accounts for 28.0-30.0 percent of the total weight of the flux-cored wire, the flux powder contains the following components accounting for the flux powder in percentage by weight: 25.0%-28.0% of metallic chromium powder, 29.0%-32.0% of metallic nickel powder, 4.0%-5.0% of electrolytic metallic manganese, 2.0%-4.0% of high carbon ferro-chrome, 18.0%-20.0% of rutiles, 1.0%-2.0% of quartz, 1.0%-2.0% of zircon sands, 1.0%-3.0% of feldspars, 0.5%-1.0% of fluorspars, 0.5%-1.5% of calcium carbonate, 0.5%-1.5% of barium carbonate, and the balance of ferrous powder. The flux-cored wire has good welding process property and is suitable for the all-position gas-shielded welding of a high-chromium-nickel all-austenitic stainless steel.

Flux-cored wire for gas-shielded welding of high-chromium-nickel all-austenitic stainless steel

PURPOSE:To attain to prevent starting impossibility or an accident, by detecting the power quantity of a generator other than the number of rotations of drive machinery and calculating the number of rotations at the time of non-load from these data while comparing this value with the preceding one to detect the abnormality of the rotation detection means of the drive machinery. CONSTITUTION:The operation of an engine 1 is started and automatic inspecting operation is started by the output of an operational state detection apparatus 23. An operation control apparatus 26 reads the number N of rotations of the engine 1 and the power quantity W of a generator 3 from a number-of-rotation detection apparatus 21 and a power quantity detection apparatus 22 through an input apparatus 24. Next, by applying correction processing to the number N of rotations of the engine 1 on the basis of power quantity W by the operation control apparatus 26, the number NR of rotations at the time of non-load is operated and compared with the number NRA of average rotations at the time of non-load up to the preceding time stored in a memory apparatus 25 and the deterioration in the capacity of the number-of- rotation detection apparatus 21 is judged on the basis of whether the change rate of both numbers of rotations is a definie value or more and, if said apparatus 21 is judged to be abnormal, abnormality is displayed on a display apparatus 28.

Automatic inspection apparatus of number-of-rotation detection apparatus

Rail guide apparatus for car seat

Control apparatus of clothing dryer

PURPOSE:To cope with the change of characteristics of an R/W head by putting a correction circuit consisting of passive individual parts between the R/W head and a hybrid IC constituting a reproduction circuit without changing the number of lead terminals of the hybrid IC. CONSTITUTION:The reproduction analog given from an R/W head 1 passes through a correction circuit 2 and is supplied to an amplifier circuit via an input circuit 3. The amplified reproduction signal passes through a filter circuit 6 for reduction of noises and is differentiated by a differentiation circuit 7. This differentiated signal is converted into a digital signal by a comparator 8. An error pulse of the digital signal is eliminated by a time domain filter 9. Thus a digital reproduction signal is obtained. A reproduction circuit 11 reaching the filter 9 from the circuit 3 is converted into a hybrid IC. The frequency characteristics of the head 1 and circuits 2 and 3 can be changed within a certain range by varying correction resistances r1 and r2 of the circuit 2. Thus the circuit 11 can be shared by various types of R/W heads.

Floppy disk driver

PURPOSE:Fe-Si alloy containin 0-400 ppm is added in the molten heat resisting cast steel composed each specified amount of C Si Mn Cr Ni Nb and remainder Fe substantially Thereby, weldability is improved without the deterioration of steel cleanliness

Heat resistant cast steel of improved weldability

PURPOSE:To obtain effective weld joint, by butting joint groove part of two difficult weldability tube and using the cover, covering the tube hole, inactive gas, vacuum apparatus, tightly sealed case and heating apparatus etc.

Dehydrogenation apparatus for welding of slightly weldable materials

Heattresistant and corrosion resistant cast steel centrifuge casted tubes of improved quality by molten metal forced deoxydation

PURPOSE:To prevent the formation of lamellar structure of cast steel independently of weldability by the addition of low-oxygen Fe-Si alloy, the addition causing a sharp decrease in the amount of oxygen in the steel.

Process for improving structure of heat resistant cast steel

PURPOSE:To effectively weld the joint groove part of two difficult weldability tube, by carrying out welding subsequent to the second layer, after forming the first welding layer at the bottom of butt groove and next, reducing pressure the tube hole and also, dehydrogenating neighborhood of joint, heating the outer circumference of joint.

Ashimoto Teruo

Papers

Heat resistant cast steel of improved weldability

Dehydrogenation apparatus for welding of slightly weldable materials

Heattresistant and corrosion resistant cast steel centrifuge casted tubes of improved quality by molten metal forced deoxydation

Process for improving structure of heat resistant cast steel

Welding method for slightly weldable materials and dehydrogenation apparatus welding