Immersible oxygen sensor for molten metals

摘要

An improved immersible oxygen probe for molten metals has a gas permeable body including an immersion end and a support end adapted for being supported by a lance. An oxygen cell and a thermocouple are supported in the immersion end of the body. An unobstructed gas flow passageway is provided through the gas permeable bodies and through the probe body from the immersion end to the support/connector end whereby gases released from the molten metal and sensor body during immersion readily pass through the probe and can escape from within the probe. Thus rapid analysis of the molten metal with improved accuracy within a few seconds after immersion is achieved.

主权项

1. An immersible probe for molten metals comprising:
a first gas permeable body having an immersion end and a support end adapted for being supported by a lance; at least one molten metal testing device supported by said body, the device including a test device adjacent to said immersion end for monitoring a characteristic of said metal; an unobstructed gas flow passageway from said immersion end through said permeable body to said support end whereby gases released from a molten metal or contained in said permeable body during immersion of said immersion end can flow from within said probe into the atmosphere, the support end having connecting means for transmitting data from said testing device to remote electronic monitoring equipment; and wherein the test device is exposed on the immersion end and is covered by an ungalvanized and uncoated steel cap having an irregular scalloped end surface that avoids formation of metal rings when melted during immersion of the probe.