JPH0181492U - - Google Patents

Info

Publication number
JPH0181492U
JPH0181492U JP1987170751U JP17075187U JPH0181492U JP H0181492 U JPH0181492 U JP H0181492U JP 1987170751 U JP1987170751 U JP 1987170751U JP 17075187 U JP17075187 U JP 17075187U JP H0181492 U JPH0181492 U JP H0181492U
Authority
JP
Japan
Prior art keywords
plating layer
lead
heat exchanger
exchanger tube
utility
Prior art date
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
Application number
JP1987170751U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987170751U priority Critical patent/JPH0181492U/ja
Publication of JPH0181492U publication Critical patent/JPH0181492U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の説明図、第2図は
第1図の―矢視図、第3図および第4図は本
考案の他の実施例の説明図、第5図は従来伝熱管
と本考案の実施例との性能比較図、第6図は従来
の伝熱管の説明図である。 1……ボイラ用鋼管、2……めつき層、3……
鉛被覆、4……フイン。

Claims (1)

    【実用新案登録請求の範囲】
  1. ボイラ用鋼管の表面に形成されたPとS
    合金めつき層、および同めつき層の上に形成され
    たフインを有する鉛被覆を備えたことを特徴とす
    る鉛被覆伝熱管。
JP1987170751U 1987-11-10 1987-11-10 Pending JPH0181492U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987170751U JPH0181492U (ja) 1987-11-10 1987-11-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987170751U JPH0181492U (ja) 1987-11-10 1987-11-10

Publications (1)

Publication Number Publication Date
JPH0181492U true JPH0181492U (ja) 1989-05-31

Family

ID=31461972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987170751U Pending JPH0181492U (ja) 1987-11-10 1987-11-10

Country Status (1)

Country Link
JP (1) JPH0181492U (ja)

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