摘要:
A method for manufacturing a ceramic substrate is characterized in using a preformed trench, a patterned protective layer and a sand blasting process to manufacture a cavity in a ceramic substrate and control the cavity size and shape of the ceramic substrate. The ceramic substrate is collocated with a base substrate to form a package substrate for packaging a semiconductor chip. The manufacturing method set forth above can lower the manufacturing cost and raise the accuracy of the size and shape of the cavity of the ceramic substrate. The abovementioned method can reduce the fabrication cost and increase the precision of the shape and size of a ceramic substrate.
摘要:
The invention relates to a method for producing a concrete body having a planar upper side, wherein a high surface quality is obtained. In the method, a concrete body is extruded from unset concrete and is provided with a groove profile at the upper side thereof by means of a profiling unit. By means of the profiling unit and depending on the comb-shaped profile thereof, the sand particles are separated according to size, wherein large sand particles are displaced from the surface area of the concrete body toward the inside, this being toward the interior of the concrete body. Only fine sand particles can pass the profile, whereby raised areas of the groove profile are formed, which are made of extremely fine-grained unset concrete. Subsequently, the upper side of the concrete body is leveled by means of a leveling unit, wherein the raised areas of the groove profile are crushed and the fine-grained unset concrete of the raised areas of the groove profile is distributed to form a cover layer.
摘要:
The invention relates to a method of manufacturing sheets based on hydraulic binder, particularly sheets of plasterboard with feathered edges. The method comprises the steps of (I) making a mark (301) on a facing (2 or 3) of the preform (5), (II) detecting the mark (301), and (III) sending an actuating signal to a device (9) for cutting the preform (5). The invention also relates to a production line for producing such sheets, and to an apparatus, particularly for making an impression (12, 12bis) in a preform (5). The apparatus comprises a frame (101), first (102, 103) and second (105, 106) pulleys, two belts (108, 109) wrapped around the pulleys (102, 103, 105, 106), and at least one wire (111) extending between these belts (108, 109) so that its axis is parallel to the axis of the pulleys (102, 103, 105, 106).
摘要:
A method for shaping concrete blocks and/or concrete slabs of various formats and sizes. The shaping taking place in concrete-filled molds with or without additional facing concrete. Dies or matrices corresponding to the block surface or slab surface have recesses or projections for impressing the surfaces. The concrete blocks or concrete slabs are then removed from the molds before setting and are cured externally and the surfaces are further worked in a subsequent operation. The recesses formed are grooves having parallel, oblique, planar or curved walls and/or roots and the projections being tooth strips having parallel, oblique, planar or curved walls and/or tips. The grooves and/or tooth strips extend over the entire surface of the dies and consequently over the entire surface of the concrete blocks or concrete slabs. In a subsequent operation the surfaces are blasted with liquids or solids. A final step may include application of a coating containing acrylate resin.
摘要:
A plurality of insulator samples of different dimensions are subjected to multiple regression analysis to thereby induce an expression for estimating the amount of unevenness in wall thickness of an insulator; specifically, 0.01 (17.527+0.141A−0.285B−6.124C−0.14D+1.105E), where A is an overall length of the insulator, B is the outside diameter of a rear trunk portion of the insulator, C is the diameter of a large diameter portion of the axial bore of the insulator, D is the length of the large diameter portion of the bore, and E is the diameter of a small diameter portion of the axial bore. The insulator is designed such that the amount of unevenness in wall thickness thereof estimated through calculation by this expression is less than 0.07 mm.
摘要:
Allows tesseras to be obtained with optimal results in the creation of a mosaic. A terracota support is realised of an optimal size of 100null100 mm and a thickness of between 1.5 and 3 mm, subject to allowances for working, also by a craftsman, The support 1 made to allowances for working, also by a craftsman The support 1 made out of clay, before firing is scored or moulded on the rear part with grooves which are regular, parallel and perpendicular or oblique, at a distance of betwen 5 and 10 mm (or other, according to requirements) with a depth of between about 0.75 and 1.5 mm. After the first kil firing, one then proceeds to the kiln glazing of the front part 2. The grooves 3 allow an easy and regular breaking of the glazed tile. With its breaking the tesseras are obtained, with perfect edges and the rear part no visible, thanks particular to the reduced thichness. This then allows an easy resizing with side-cutting nippers of the tessera and the adaptation thereof to the design.
摘要:
A stamp for forming an impression into hardenable material and an elongate body carried by the stamp for movement between retracted and extended conditions for measuring the distance between impressions.
摘要:
The present invention generally relates to a system for manufacturing horizontally precast panels of moldable material which panels require shaped surface patterns. More particularly, the invention relates to a system for manufacturing horizontally precast concrete panels formed of concrete, for use in vertical wall systems, with one or more shaped surfaces.
摘要:
In a process for cutting a deformable body, e.g., a clay column, into individual shaped bodies by using at least one cutting wire, the body is first provided with notches about its periphery by a known notching device. During the subsequent cutting, the body is supported by support strips that engage in the notches on both sides of the cut edges. The body is thus not deformed during cutting, no undesirable cutting edges are left and the notch definition remains.
摘要:
The present invention relates generally to a new apparatus and method for in-situ green sheet slitting. More particularly, the invention encompasses an apparatus and method that uses a modified green sheet slitting machine so that it can provide an in-situ slitting of green sheets that result in a plurality of separate green sheets rolls or strips.