A molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, can be produced by a centrifugal casting method comprising a first step of heating at higher than 1140 C. and lower than 1200 C., and a second step of heating at 1080-1140 C. after melting the raw material powder.

A casting device and a diecasting method, preferably a vacuum die-casting method, includes a casting chamber having a filling opening, and a casting piston that can be moved in the casting chamber and is connected with a casting drive by way of a casting piston rod. The device also includes a feed line, by way of which casting material can be filled into the casting chamber through the filling opening. The casting chamber is disposed, at least in part, in a sleeve that is mounted so as to rotate.

Apparatus and methods for injecting molten filler material into a hole. The method in accordance with one embodiment comprises: drilling a hole in a composite layer; heating filler material comprising an electrically conductive low-melting alloy to a molten state; inserting a nozzle having an internal channel system into the hole with a gap separating the nozzle and the hole; forcing molten filler material into, through and out of the internal channel system of the nozzle and into the gap; and retracting the nozzle from the hole. The nozzle may be rotary or not rotary.

Shot sleeves for high temperature die casting include a nickel-based alloy having a low modulus single crystal with axi-symmetric orientation.

Method and apparatus for creating at least one metal component by injecting flowable metal casting material into at least one cavity of a multi-part casting mold. Arranged successively downstream, apparatus includes a conveyor device for the flowable metal material, a distributor unit and the mold. The distributor unit includes an inlet channel connected to the conveyor device, and multiple outlet channels each having an outlet nozzle, such that casting material fed under pressure via the distributor inlet channel is injectable via the outlet nozzles into the at least one cavity of the mold to simultaneously fill the at least one cavity with casting material via the outlet nozzles. To produce the component with high process reliability in high quality, at least one of the outlet channels is connected to the mold in a sliding manner to enable relative movement between the outlet nozzle of the outlet channel and the mold.

A process for permanent mold casting of metals and their alloys includes the steps of providing at least a mold equipped with a plurality of cooling nozzles, making a layer of coolant permeable materials covering the nozzles and maintaining the materials at desired temperatures, delivering a molten metal into the mold, supplying predetermined amount of coolant to each nozzles to contact the external surface of the casting at desired rate, time, and duration to achieve an acceptable level of progressive solidification from the distal end of the casting towards the riser until the casting has reached desired temperatures.

A high-pressure die casting apparatus including a shot sleeve extending through a first die half to a molding surface, and a plunger received in the shot sleeve is provided. The shot sleeve includes a side wall presenting a fluid passageway and a partial end wall disposed in a fixed position relative to the side wall. The partial end wall defines a wall opening adjacent the molding surface. Fluid is poured into the shot sleeve while the die apparatus is open, and the partial end wall prevents the fluid from flowing out of the shot sleeve. The plunger then presses the material into the mold cavity until only a portion of the material remains in the shot sleeve and blocks the wall opening. After the solidified material is ejected from the apparatus, the portion of material blocking the wall opening prevents lubricant from entering the shot sleeve.

A die-casting sleeve comprising an outer cylinder made of a low-thermal-expansion metal material, and an inner cylinder shrink-fit into the outer cylinder; an outer peripheral surface of the outer cylinder being provided with a flange for fixing the die-casting sleeve to a stationary die block of a die-casting machine; the inner cylinder being constituted by a front member of a low-thermal-expansion metal material arranged on the injection opening side, and a rear member of silicon-nitride-based ceramics arranged in close contact with a rear end surface of the front member; the outer cylinder having an average thermal expansion coefficient .sub.A of 110.sup.6/ C. to 510.sup.6/ C. between 20 C. and 200 C.; the front member having an average thermal expansion coefficient .sub.B of 110.sup.6/ C. to 510.sup.6/ C. between 20 C. and 200 C.; the difference between .sub.A and .sub.B being 110.sup.6/ C. to 110.sup.6/ C.; and the axial length L.sub.1 (mm) and inner diameter D.sub.in (mm) of the front member, and the distance L.sub.2 (mm) from a tip end of the outer cylinder to a rear end of the flange meeting D.sub.inL.sub.1L.sub.2+20.

The present disclosure is directed to feedstock barrels comprising thermally and electrically insulating films configured to be adjacent to a feedstock sample when it is loaded in the barrel for the process of shaping metallic glasses by rapid capacitor discharge forming (RCDF) techniques.

The invention relates to a diecasting method and a diecasting nozzle system (10) for use in a hot-chamber system (1) for the diecasting of metal melt (4), comprising a hot-chamber diecasting machine (2) with a casting vessel (3) and a melt distributor (20), which distributes the melt (4) from a machine nozzle (7) among uniformly heated diecasting nozzles (40). Arranged between a sprue region (42) of the diecasting nozzles (40) and the casting vessel (3) is at least one nonreturn valve (48), which prevents the melt (4) from flowing back from the sprue region (42) in the direction of the casting vessel (3). According to the invention, the nonreturn valve (48) is respectively arranged between the sprue region (42) of at least the upper diecasting nozzles (40) and a final branch of melt runners (22) in the melt distributor (20) to each of the diecasting nozzles (40).