JPS6330335U - - Google Patents

Info

Publication number

JPS6330335U

JPS6330335U JP12330286U JP12330286U JPS6330335U JP S6330335 U JPS6330335 U JP S6330335U JP 12330286 U JP12330286 U JP 12330286U JP 12330286 U JP12330286 U JP 12330286U JP S6330335 U JPS6330335 U JP S6330335U

Authority

JP

Japan

Prior art keywords

exhaust port

vacuum

degassing device

vacuum chamber

opening

Prior art date

1986-08-13

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

• 238000009849 vacuum degassing Methods 0.000 claims description 3
• 229910000831 Steel Inorganic materials 0.000 description 1
• 230000001174 ascending effect Effects 0.000 description 1
• 238000007872 degassing Methods 0.000 description 1
• 239000010959 steel Substances 0.000 description 1