JPH0453044U - - Google Patents

Info

Publication number

JPH0453044U

JPH0453044U JP9311590U JP9311590U JPH0453044U JP H0453044 U JPH0453044 U JP H0453044U JP 9311590 U JP9311590 U JP 9311590U JP 9311590 U JP9311590 U JP 9311590U JP H0453044 U JPH0453044 U JP H0453044U

Authority

JP

Japan

Prior art keywords

vacuum degassing

peripheral wall

prevention structure

immersion

immersion tube

Prior art date

1990-09-06

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 230000002093 peripheral effect Effects 0.000 claims description 4
• 229910000831 Steel Inorganic materials 0.000 claims description 3
• 239000010959 steel Substances 0.000 claims description 3
• 239000011449 brick Substances 0.000 claims description 2
• 238000007654 immersion Methods 0.000 claims 3
• 238000009849 vacuum degassing Methods 0.000 claims 3
• IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
• 230000002265 prevention Effects 0.000 claims 2
• 238000010521 absorption reaction Methods 0.000 claims 1
• 229910052757 nitrogen Inorganic materials 0.000 claims 1
• 238000007664 blowing Methods 0.000 description 1