JPH0228901U - - Google Patents

Info

Publication number

JPH0228901U

JPH0228901U JP10775588U JP10775588U JPH0228901U JP H0228901 U JPH0228901 U JP H0228901U JP 10775588 U JP10775588 U JP 10775588U JP 10775588 U JP10775588 U JP 10775588U JP H0228901 U JPH0228901 U JP H0228901U

Authority

JP

Japan

Prior art keywords

tube

outer tube

pair

inner tube

sheets

Prior art date

1988-08-16

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

• 239000012530 fluid Substances 0.000 claims description 10
• 230000000149 penetrating effect Effects 0.000 claims 1
• 238000003466 welding Methods 0.000 claims 1
• 238000001514 detection method Methods 0.000 description 3
• 239000007789 gas Substances 0.000 description 2
• 238000010438 heat treatment Methods 0.000 description 2
• DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
• 239000001307 helium Substances 0.000 description 1
• 229910052734 helium Inorganic materials 0.000 description 1
• SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
• 229910052708 sodium Inorganic materials 0.000 description 1
• 239000011734 sodium Substances 0.000 description 1
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1