JPS6436715A - Tuyere having wear resistance and spalling resistance - Google Patents

Tuyere having wear resistance and spalling resistance

Info

Publication number
JPS6436715A
JPS6436715A JP19308187A JP19308187A JPS6436715A JP S6436715 A JPS6436715 A JP S6436715A JP 19308187 A JP19308187 A JP 19308187A JP 19308187 A JP19308187 A JP 19308187A JP S6436715 A JPS6436715 A JP S6436715A
Authority
JP
Japan
Prior art keywords
tuyere
mixing
resistance
spalling
welding layer
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
JP19308187A
Other languages
Japanese (ja)
Inventor
Tetsuya Nishiura
Junji Ohori
Hideaki Mori
Motofumi Kurahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP19308187A priority Critical patent/JPS6436715A/en
Publication of JPS6436715A publication Critical patent/JPS6436715A/en
Pending legal-status Critical Current

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  • Blast Furnaces (AREA)

Abstract

PURPOSE:To improve wear resistance and spalling resistance of a tuyere by forming welding layer mixing boride series ceramic powder and metal powder on the surface of tip part of the tuyere. CONSTITUTION:On the surface of the tip part of copper or copper alloy-made tuyere body 1, the welding layer 3 mixing the boride series ceramic powder of ZrB2, etc., and the metal powder of Ni base metal, etc., is formed. The above ceramic mixing with the metal is desirable to be about 20-80vol.%, and further, in the case of mixing >=30vol.% the ceramic, it is desirable to arrange an underlaying welding layer composing of Ni base metal layer, etc. In such a way, the tuyere executing the cladding by welding is difficult to develop the damage of the spalling and erosion of the welding layer and the service life of the tuyere can be drastically extended.
JP19308187A 1987-08-01 1987-08-01 Tuyere having wear resistance and spalling resistance Pending JPS6436715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19308187A JPS6436715A (en) 1987-08-01 1987-08-01 Tuyere having wear resistance and spalling resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19308187A JPS6436715A (en) 1987-08-01 1987-08-01 Tuyere having wear resistance and spalling resistance

Publications (1)

Publication Number Publication Date
JPS6436715A true JPS6436715A (en) 1989-02-07

Family

ID=16301904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19308187A Pending JPS6436715A (en) 1987-08-01 1987-08-01 Tuyere having wear resistance and spalling resistance

Country Status (1)

Country Link
JP (1) JPS6436715A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226330A (en) * 1991-10-31 1993-07-13 Lew Hyok S High sensitivity mass flowmeter
JP2018090860A (en) * 2016-12-05 2018-06-14 株式会社戸畑製作所 Blast furnace tuyere

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226330A (en) * 1991-10-31 1993-07-13 Lew Hyok S High sensitivity mass flowmeter
JP2018090860A (en) * 2016-12-05 2018-06-14 株式会社戸畑製作所 Blast furnace tuyere

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