摘要:
A building panel includes a central core and a pair of opposed coating surfaces formed integrally with the core. The method of forming the building panel includes the application of a flowable, settable coating material to respective surfaces of at least two baffles (100), placing the baffles in a substantially parallel, spaced interrelationship, at least substantially filling the space between the two baffles (100) with a settable core material prior to setting of the core material, and allowing the core material and coating material to set.
摘要:
A self-cleaning dosing pump system for delivering a slurry of solid particles and water. The dosing pump system comprises a membrane metering pump (10) and at least one sieve (11-13), arranged at the delivery end of the pump (10). The invention is particularly applicable to delivering a slurry of microsilica to a spray nozzle (5) for shotcreting.
摘要:
A production method for fabricating a concrete pillar or beam, in which method the concrete mix is sprayed against the wall of a mold (1, 2, 3, 4, 5) having a predetermined shape, after which the concrete surface is smoothed by levelling. The concrete surface is levelled with the help of a surfacing disc (6), whereby the pillar or beam is rotated so as to place one side of the pillar or beam at a time facing the surfacing disc so that the pillar or beam achieves a section of a square, rectangle, pentagon, hexagon, or a similar forn.
摘要:
A method of shotcreting in which cement and sand are mixed in a bin (1) and piped to a nozzle (5) by means of compressed air (4). A slurry of water and silica fume is added to the cement and sand in the nozzle (5) from a tank (9) via a water line (8).
摘要:
The present invention is a production method of a ceramic compact (82), comprising: a coating process in which a slurry comprising ceramic particles and a polymer binder is coated to a surface of a substrate (75) to obtain a film-coated substrate having a coat (80) formed on an upper side of the substrate (75), and a degreasing process in which the film-coated substrate obtained in the coating process is heated to degrease the coat (80). The degreasing process includes non-uniformly heating a lower surface of the film-coated substrate so as to have a partial temperature difference on the lower surface of the film-coated substrate.
摘要:
The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
摘要:
A large diameter reinforced concrete section, such as a culvert or pipe is formed by mounting a mould core (20) on a spindle (23) for rotation. The exterior surface of the mould has a shape which is the required interior shape of the section to be formed. A mesh of reinforcing rods (26) is then wrapped around the core (20) and concrete is sprayed from a gun (24) onto the core while it is rotating. The concrete includes a setting accelerator which ensures rapid setting of the concrete on the core. When set, the core is removed. In this way sections can be formed quickly and with a minimum of labour.