TENSIONING DEVICE EXTENDING BEYOND COMPONENT
First Claim
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1. A component for use in a molten metal pump, the component comprising:
- an outer core constructed of graphite or ceramic;
a tension rod positioned at least partially inside the outer core, wherein the tension rod applies an axial compressive force to the outer core in order to make the outer core less susceptible to breakage;
wherein the tension rod has at least one end, the outer core has a first end and a second end and at least one end of the tension rod extends beyond either the first end or second end of the outer core; and
the component is used in a molten metal pump having a superstructure and the at least one end of the tension rod that extends beyond the first end or second end of the outer core is tightened against the superstructure.
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Abstract
A system for applying tension to a component for use in molten metal processing. Preferably, the component includes an outer core and at least one tension rod positioned partially within the outer core. The component is preferably elongated, such as a support post or an impeller shaft. The tension rod applies compression to the outer cover, which makes the outer cover more resistant to breakage if it strikes, or is stricken by, an object.
69 Citations
15 Claims
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1. A component for use in a molten metal pump, the component comprising:
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an outer core constructed of graphite or ceramic; a tension rod positioned at least partially inside the outer core, wherein the tension rod applies an axial compressive force to the outer core in order to make the outer core less susceptible to breakage; wherein the tension rod has at least one end, the outer core has a first end and a second end and at least one end of the tension rod extends beyond either the first end or second end of the outer core; and the component is used in a molten metal pump having a superstructure and the at least one end of the tension rod that extends beyond the first end or second end of the outer core is tightened against the superstructure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15)
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10. The component of claim 10 wherein the outer core has an interior wall and the tension rod is further secured in the component by a threaded connection between the tension rod and the interior wall.
Specification