JPS57174423A - Pre-treatment method of sintering material - Google Patents

Pre-treatment method of sintering material

Info

Publication number
JPS57174423A
JPS57174423A JP5942981A JP5942981A JPS57174423A JP S57174423 A JPS57174423 A JP S57174423A JP 5942981 A JP5942981 A JP 5942981A JP 5942981 A JP5942981 A JP 5942981A JP S57174423 A JPS57174423 A JP S57174423A
Authority
JP
Japan
Prior art keywords
grain
sintering material
weight
boundary
gas permeability
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.)
Granted
Application number
JP5942981A
Other languages
Japanese (ja)
Other versions
JPS5932534B2 (en
Inventor
Taizo Nakada
Hitoshi Yoshida
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 JP5942981A priority Critical patent/JPS5932534B2/en
Publication of JPS57174423A publication Critical patent/JPS57174423A/en
Publication of JPS5932534B2 publication Critical patent/JPS5932534B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To obtain a granulated substance which is large in its strength and gas permeability, by specifying the weight ratio of grain of both a boundary grain diameter or below and its half of below, when granulating a sintering material by a pan pelletizer.
CONSTITUTION: When granulating a sintering material such as a mixed material, a new material, etc. by a pan pelletizer, grain size of the sintering material is adjusted as mentioned below. That is to say, weight of grain of a boundary grain diameter 0.5mm or below of the sintering material is set to 30W60% of the total wight. Also, weight of grain of 1/2 or below of a boundary grain diameter 0.5mm is adjusted so as to be 75% or above against weight of the boundary grain dameter 0.5mm or below. According to such a constitution, gas permeability of a granulated substance obtained in the outlet of a granulating machine is elevated rapidly, also strength of pseudo grain is increased, it is not disintegrated in the process of transportaion and charging, and gas permeability on the pallet is elevated.
COPYRIGHT: (C)1982,JPO&Japio
JP5942981A 1981-04-20 1981-04-20 Pre-treatment method for sintering raw materials Expired JPS5932534B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5942981A JPS5932534B2 (en) 1981-04-20 1981-04-20 Pre-treatment method for sintering raw materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5942981A JPS5932534B2 (en) 1981-04-20 1981-04-20 Pre-treatment method for sintering raw materials

Publications (2)

Publication Number Publication Date
JPS57174423A true JPS57174423A (en) 1982-10-27
JPS5932534B2 JPS5932534B2 (en) 1984-08-09

Family

ID=13113008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5942981A Expired JPS5932534B2 (en) 1981-04-20 1981-04-20 Pre-treatment method for sintering raw materials

Country Status (1)

Country Link
JP (1) JPS5932534B2 (en)

Also Published As

Publication number Publication date
JPS5932534B2 (en) 1984-08-09

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