Abstract: A non-splash molten metal sampler has a refractory fiber body which defines a cylindrical mold cavity with sand-resin plugs providing end walls for the cavity. The plugs can be formed in place. The fiber body is easily machined to provide a side entry port and grooves for pin sample tubes and thermocouple wires.

Abstract: Disclosed herein is a repeating use thermocouple assembly and method of making the same in which a cavity adjacent the tip of the thermocouple is filled with a thermosetting foundry sand and baked in place to provide support for the thermocouple tube without causing stresses during use which could cause breakage of the thermocouple tube.

Abstract: A repeating use thermocouple assembly includes a refractory fiber protective sleeve with a dome-shaped end wall which encapsulates the assembly. A blanket of refractory fiber is wrapped around the thermocouple element to protect the components of the assembly.

Abstract: Disclosed herein is a field replaceable protective cap for a thermocouple assembly for measuring the temperature of a molten metal bath. The cap has projecting pins which pierce and frictionally engage the refractory fiber sleeve which protects the thermocouple assembly.

Abstract: A molten metal sampler which employs a jacket of sand-sodium silicate mix around the metal mold halves to prevent molten metal splash on the exterior of the mold halves, prevent leakage of molten metal from the mold halves and provide good venting. The sand is molded around the mold halves and, in one embodiment, the protective cardboard sleeve used for connecting the sampler to a manipulating rod serves as the mold for the sand-cement mix.

Abstract: A molten metal sampler includes opposed mold halves having recesses which form a fill passage and vent passage. The vent passage is positioned adjacent a supporting handle so that an elongated vent tube can be secured to the handle for support.

Abstract: A stream sampler includes a cylindrical refractory wall with an elongated fill tube held in place against the inner surface of the wall by one or more refractory struts and a sight gauge which indicates the quantity of metal in the mold cavity.

Abstract: Disclosed herein is a molten metal sampler having disc-shaped metal mold halves which join together to form a neck for a fill tube, and in which a cardboard shield is arranged around the neck. The sampler holder has a notch to wedge at right angles with the fill tube axis and between the mold halves and the shield.

Abstract: A molten metal sampler employs two refractory mold halves having circular openings covered with plates to mold a disc sample and recesses communicating with the circular openings for fill passages and the formation of pin samples. The recesses in the mold halves when assembled provide integral fill and pin sample passages, a mixing chamber, deoxidant chamber, flow deflection and tortuous flow passage. The orientation of the fill passages and the recesses for the pin sample tube enable the mold to be positioned in a protective paperboard sleeve or box with one passage oriented to provide an end fill sample lance and the other passage serving as a pin sample mold. Alternatively, and in one embodiment, the pin sample mold can be employed as the fill passage by communicating through the side wall of a protective paperboard sleeve to provide a side fill immersion sampler.

Abstract: A molten metal sampler includes a three-part refractory sample cartridge carried in a paperboard sleeve. The cartridge includes an open ended refractory mixing chamber which in one embodiment has a side entry port which receives molten metal from a side port in the paperboard sleeve. The cartridge also includes two refractory mold halves having opposed recesses which define a fill passage and a sample forming cavity. The fill passage is positioned to receive molten metal from the open end of the entry chamber. In another embodiment, the mixing chamber has an inlet in the end of the chamber and an outlet to adapt the cartridge for use in an end filling sampler.

Abstract: A molten metal dip sampler or ladle comprises a cylindrical refractory sample cup which is manipulated by a handle which is held in embracing relationship with the sample cup by a paperboard sleeve. A bent portion on the handle extends beneath the bottom of the sample cup to support the mold on the handle.

Abstract: Molten metal sampling apparatus includes two or more paperboard sleeves held together in side by side relationship by glue, fasteners and a refractory cement joint with one of the sleeves being connectible by a friction-fit to a handle inserted in one of the sleeves and the other of the sleeves containing a sample mold. The handle is a paperboard tube which carries a thermocouple for measuring bath temperature. Additional sleeves can be added to carry sample molds of a different configuration. The sampling apparatus is adaptable for handling a wide range of sample molds and is inexpensive and relatively compact and enables taking of a sample and a bath temperature simultaneously.

Abstract: A sampler for taking a sample of molten metal from a stream of molten metal includes a mold body which is formed from two refractory mold halves with each half having an open faced cavity. In use the mold halves are secured together by spring clips which also press metal plates against the open mold faces to seal the open faces of the mold cavity. Grooves in the mold halves receive pin sample tubes and fill tubes. The split line between the mold halves affords venting of the mold cavity as the molten metal enters the mold cavity. The sample mold is manipulated by a handle which includes spring jaws with projections which are received in recesses in the mold halves. The spring jaws are expanded to receive and release the mold body by a lever arm secured to one of the jaws and extending along the handle.

Abstract: A stream sampler includes split metal mold halves for forming a disc sample and a pin sample tube which extends through the walls of the disc mold into the interior of the disc to provide a pin sample which has little or no decarburization and thus, more representative of the metal being sampled and closer in correlation in carbon percent to the disc sample. The pin sample tube is enclosed by a heat resistant insulative glass sleeve which extends beyond the end of the pin sample tube. The extension enhances filling of the pin sample tube by capillary action and provides a reservoir of metal to isolate the remote end of the pin sample from air and minimize decarburization.

Abstract: A sampler for taking a sample of molten metal from any source of molten metal includes a mold having a mold cavity with a fill passage and a flow diverter located within the mold cavity which causes turbulent flow of the molten metal as it enters the mold cavity to provide good mixing of the deoxidant and eliminate structural voids in the sample. In one embodiment, a pin sample tube has its inner end located in the path of flow from the fill passage to cause disruption of the normal flow patterns and provide the desired uniform sample.

Abstract: Molten metal sampling apparatus includes a permanent chill mold having opposed mold halves with recesses which define a sample cavity. The permanent mold is protected in use by a disposable housing and fill tube assembly made of paperboard which snugly receives the permanent mold which is fastened to a handle in the form of a pipe. A fibrous refractory gasket is carried by the housing and located against a refractory end wall in the housing to provide a seal when the permanent mold is inserted and pressed against the gasket. Three different fill tube housing assemblies are usable with the permanent mold. One housing assembly is adapted for use as a stream sampler; another for immersion sampling; and a third for pneumatic sampling.