摘要:
In order to produce a built-under sink for mounting on a lower surface of a work top and which comprises a mounting flange that rests against the work top in the installed state of the built-under sink such that it is mountable on the work top in a secure and space-saving manner, it is proposed that the mounting flange be provided with at least one fastener recess for the passage of at least one mechanical fastener through the mounting flange.
摘要:
A tray column is proposed which comprises column trays, two or more supports which are arranged on the underside of the column trays and support them and a bearing ring for the column trays on the inner wall of the tray column, wherein three-way joints of inner column wall, bearing ring and support are prevented by cutouts in the bearing ring.
摘要:
The aim of the invention is to provide a method for producing a metal sheet, especially a steel sheet, at least one surface of which is provided with a surface structure that provides as structural elements depressions and/or elevations, and which metal sheet is substantially resistant to scratches and finger prints. According to the inventive method, the surface structure is configured as a random microstructure.
摘要:
The invention proposes a jet device for a machine for producing a material web, in particular a paper or board web, having a nozzle device for dispensing a jet of liquid which is under pressure and is directed onto the material web and/or a transport belt guiding the material web. A changeover device by which the pressure with which the medium impinges on the transport belt or the material web, respectively, can be set.
摘要:
The invention relates to an improved process for the production of liquid amine adducts of fluorine-containing amides, in which the compounds are synthesized in the absence of solvents in two process steps without the synthesis of intermediate products.
摘要:
In a vacuum distributor box with a suction connection and several vacuum connections, all the vacuum connections are equipped with non-return valves open only when vacuum lines are inserted, both the seals of the box housing itself and the those of the vacuum lines relative to the box housing and the valve sealing seats of the non-return valves being incorporated in a diaphragm seal clamped on all sides between two housing parts.
摘要:
Method for the preparation of aqueous, finely dispersed, shelf-stable silicone oil emulsions with the use of emulsifiers. Dimethyl polysiloxanes and 0.1-0.3 part by weight of emulsifiers, based on the dimethyl polysiloxanes, of a monoester or diester of orthophosphoric acid or mixtures thereof, are mixed, with agitation at temperatures of between 20.degree. and 150.degree. C. until a clear solution is obtained; thereupon an organic base or alkali is added up to neutralization; and subsequently the neutralized mixture is diluted with water.The monoesters and diesters of orthophosphoric acid and mixtures thereof comprising the emulsifiers are prepared by the reaction of:(a) 1-n-octanol or 1-n-octenol with P.sub.2 O.sub.5, or(b) straight-chain primary alcohols of 6-10 carbon atoms with phosphoric acids or phosphorus halogenides, or(c) mixtures of primary alcohols of an average molecular weight of 110 to 160, which are straight-chain to an extent of at least 50 molar percent and contain 1-22 carbon atoms, with phosphoric acids, phosphorus oxides, or phosphorus halogenides.
摘要:
The coating compound according to the invention contains an epoxide resin, a diprimary amine curing agent and as modifier a hydrazone of the formula ##STR1## wherein the radical R.sup.1 -R.sup.4 represent hydrogen or alkyl, provides after curing coatings having a smooth, lustrous and glass-like surface which has a good resistence to chemicals.
摘要:
The housing of the primary recirculating pump in a nuclear reactor plant has a reinforced annular portion at the inlet and/or outlet and anchoring means provided on the annular portion and on the foundation to allow for limited movement of the housing relative to the foundation in response to development of major stresses which are likely to arise in the event of breakage of one or more pipes or as a result of earth tremors. The inertia of the annular portion or portions in response to temperature changes can be reduced by forming their end faces with one or more circumferentially complete grooves which surround the adjacent ends of the respective pipes. The anchoring means may comprise cylindrical pins which extend radially from the respective annular portion and into complementary sockets provided on clamps, claws or analogous anchoring parts in or on the foundation. The anchoring means may also comprise L-shaped clamps which are secured to the foundation and extend into a circumferential groove of the respective annular portion or overlie a ring-shaped projection of such annular portion.