Abstract: A compressing device, a drive shaft and a bearing device are assembled into a tubular member. All-around welding of a cover member to the tubular member is performed to form a casing in such a manner that welding is overlapped over a welding start point, at which the all-around welding is started, to form an overlapped portion in a welding bead generated by the all-around welding. In the all-around welding, heat input is externally applied to a diametrically opposite portion of the casing, which is diametrically opposite to the overlapped portion, so that the diametrically opposite portion is deformed symmetrically with respect to a welding distortion at the overlapped portion.

Abstract: A compressing device, a drive shaft and a bearing device are assembled into a tubular member. All-around welding of a cover member to the tubular member is performed to form a casing in such a manner that welding is overlapped over a welding start point, at which the all-around welding is started, to form an overlapped portion in a welding bead generated by the all-around welding. In the all-around welding, heat input is externally applied to a diametrically opposite portion of the casing, which is diametrically opposite to the overlapped portion, so that the diametrically opposite portion is deformed symmetrically with respect to a welding distortion at the overlapped portion.

Abstract: A drainpipe cleaning apparatus prevents leakage of cleaning fluid from the drainpipe while cleaning the drainpipe. The drainpipe cleaning apparatus 1 has a cleaning fluid tank 10 for storing the cleaning fluid, a fluid delivery line 15, fluid drain line 23, gas-liquid separation tank 24, gas exhaust line 26, circulation line 28, gas recovery line 31, cleaning fluid return line 33, and control device 45. The control device 45 runs a cleaning process by driving a gas discharge pump 36 to create negative pressure inside the wastewater drainpipe 2 in a transit vessel and driving a cleaning fluid pump 16 to cause the cleaning fluid to flow backwards through the wastewater pipe 2. The control device 45 also monitors the pressure detected by a inlet-side pressure detector 20 during the cleaning process.

Abstract: The invention relates to injection needle melt-off apparatuses that allow the life of the electrode rollers to be extended and processing costs to be reduced.

Abstract: Functional water (drinking water) having a dissolved oxygen content of 25 to 70 mg/l immediately after processing to dissolve oxygen in source water, and remaining 15 mg/l or more after the functional water is exposed to air for 24 hours. A purification processor (11) processes the source drinking water, and an additive processor (15) then adds components such as vitamins, minerals, and amino acids. An oxygenation processor (20) then produces the functional water (drinking water) by dissolving oxygen in the source water after having been processed by the additive processor (15). A bottling processor (16) then fills transportable containers with the drinking water and seals the containers.

Abstract: The disclosure describes a rust-preventive composition comprising a layered phosphate whose active hydrogen is reacted with ammonia in an amount of 20 to 80 mol % based on the total amount of hydrogen of the layered phosphate, and an amphoteric or basic oxide, a ratio by weight of the layered phosphate to the amphoteric or basic oxide being 10:1 to 1:10.

Abstract: An anticorrosive pigment composition comprising (A) a slightly water-soluble condensed phosphoric acid salt and (B) at least one compound selected from the group consisting of zinc compounds, boric acid compounds and lead compounds, at least one of (A) and (B) having been chemically modified.

Abstract: An adhesive resin composition comprising (a) an expoxy resin, (b) a curing agent therefor, and (c) an aluminum orthophosphate-zinc compound rust inhibiting pigment. When applied to the assembly of car body components, the composition assures improved bond strength and corrosion resistance.

Abstract: A process of regenerating and recovering lead from lead sulphate-containing wastes which comprises(i) contacting the lead battery scrap with an aqueous solution of ammonium carbonate to form lead carbonate and ammonium sulphate,(ii) subjecting the solid phase containing the lead carbonate obtained by solid-liquid separation of the reaction product so formed to roast-reduction at a temperature ranging from about 350.degree. C. to about 700.degree. C. in the presence of a carbon material reducing agent to generate and recover the lead,(iii) double decomposing the liquid phase containing the ammonium sulphate obtained by said solid-liquid separation by the addition of calcium hydroxide in an amount such that the molar ratio of the calcium hydroxide added, expressed as Ca(OH).sub.2 /(NH.sub.4).sub.2 SO.sub.4, is about 1.05 to about 1.