JPS62112888U - - Google Patents

Info

Publication number

JPS62112888U

JPS62112888U JP88286U JP88286U JPS62112888U JP S62112888 U JPS62112888 U JP S62112888U JP 88286 U JP88286 U JP 88286U JP 88286 U JP88286 U JP 88286U JP S62112888 U JPS62112888 U JP S62112888U

Authority

JP

Japan

Prior art keywords

hole punching

cooling air

hole

punching

frequency

Prior art date

1986-01-07

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

• 238000004080 punching Methods 0.000 claims description 6
• 238000010438 heat treatment Methods 0.000 claims description 5
• 238000001816 cooling Methods 0.000 claims 2
• 238000010411 cooking Methods 0.000 claims 1
• 238000007599 discharging Methods 0.000 claims 1
• 229920000728 polyester Polymers 0.000 claims 1
• 229910000831 Steel Inorganic materials 0.000 description 1
• 239000003973 paint Substances 0.000 description 1
• 239000010959 steel Substances 0.000 description 1