TH15535B - Method of sintered electrodes for forming micro-alloyed products. - Google Patents

Abstract

Methods for forming pure products from adherent metals such as tantalum, niobium and alloys are also included. Sintered electrodes are coated with at least The first layer of the alloy by means of a method arranged for uniformity. Sufficient power to bring It is applied to the body of the electrode to induce arc to make the metal start to stick and the alloy layer to melt and combine in the crucible. A uniform layer on the body of the electrodes provides a trajectory. A way for delivering a small amount of alloy down to a larger amount of the initial metal to adhere. And facilitates the arc regularly And unchanged, which promotes the mixing of alloys And the metal begins to stick in the crucible The electrode body was sintered at an improved rate without a corresponding drop in the bar softening weight. At the end, the mixed metal was left to solidify to form a rod. This stick was later formed into a pure product.

Claims (7)

1. A method for forming a pure metal product from a sintered electrode consists of forming the electrode body from the initial metal to adhere. Making at least the first layer of alloy with a uniform thickness for the said body. Position the body of the metal closer to the crucible. The crucible contains a source of sludge. Induction of the air supply between the said body. And the source of the mineral sector by temperature Sufficient to induce the initial melting of the metal to adhere to it. And layers of alloys and forming Is the fused material in the crucible. At the same time, mix the fused materials while melting. The fuselage continued. Hardening of the tube material melts into bars and forming pure products from the bars 2. Methods related to claim 1 Here, the metal begins to stick to it. Figure by electron beam melting 3. Method related to claim 1 Here, the initial metal for such adhesion is made. 4. Methods related to claim 1 Here, the starting metal for such adhesion is selected. From a group consisting of tentalum, niobium and their alloys or a mixture of those metals. 5. Methods related to claim 4 Here, the first layer is coated on The metal began to stick with an average thickness of between 0.003 and 0.006 inches. 6. Method related to claim 5 Here, the source of the sludge is a certain amount of sludge. Tantalum metal 7. Method related to claim 6. Herein, one such class of alloy element. It consists of less than 1% by weight of the starting material to adhere to it. The elements also consist of preparations, nitrile, silicon and tantalum. 8. Methods related to claim 7 Here, the metal begins to adhere to it in the body. The weight of the electrode is between approximately 50 and 5000 pounds. 9. Method in connection with claim 8 Here, the first layer is coated on. The metal was initiated to adhere to it by the plasma spray 1 0. Method in connection with claim 9 Herein the crucible was assembled. Metal with a high coefficient of thermal conductivity 1 1. Methods in connection with claim 10 Herein the ark is maintained by pressure. Electricity that is between approximately 35 volts and about 45 volts with a current ranging between 16,000 and approximately 17,000 amperes 1. 2. Method related to claim 11, herein the applied current varies by less than 1% of the average current applied to the electrode during the fusion cycle 1. 3. The method for forming pure metal products from the sintered electrode consists of forming the electrode body from the initial metal to adhere. The first layer of the alloy with a uniform thickness between 0.003 and 0.006 inches is applied to the body. The first layer contains less than 1% weight of the starting material to form such adhesion. Silicon and tantalum Applying the second layer to the said first layer Position the body of the metal closely with the crucible. The crucible contains The source of the sludge is also. Induction of the air supply between the said body. And the source of the sludge. This is done with sufficient temperature to induce the melting of the starting material to adhere to it. And the second floor thereof Formation of the melt conduction material in the crucible At the same time, the fused materials are mixed while melting. Constantly melting to the body Hardening the molten material into a bar and forming a pure product from the bar 1 4. Methods in connection with claim 13 Here, the metal is initiated to adhere to it. Choose from a group that consists of tentalum, niobium and alloys or a mixture of those metals. 5. Means in connection with claim 14 Here, the second layer consists of one quantity. Of the initial metal to stick 1 6. Means in connection with claim 15 Herein the arcing is maintained by voltage. That is between about 35 volts and about 45 volts with a current between 16,000 and approximately 17,000 amperes 1 7. Methods related to claim 16 Herein the applied current is varied by less than 1% of the average current applied to the electrode during the fusing cycle.