JPS5728240A - Indication of expansion coefficient for coal - Google Patents

Indication of expansion coefficient for coal

Info

Publication number
JPS5728240A
JPS5728240A JP10269780A JP10269780A JPS5728240A JP S5728240 A JPS5728240 A JP S5728240A JP 10269780 A JP10269780 A JP 10269780A JP 10269780 A JP10269780 A JP 10269780A JP S5728240 A JPS5728240 A JP S5728240A
Authority
JP
Japan
Prior art keywords
test piece
weight
coal
measuring
measured
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
JP10269780A
Other languages
Japanese (ja)
Other versions
JPS6259771B2 (en
Inventor
Kunihiko Nishioka
Shuhei Yoshida
Yoshihiko Sunami
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
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP10269780A priority Critical patent/JPS5728240A/en
Publication of JPS5728240A publication Critical patent/JPS5728240A/en
Publication of JPS6259771B2 publication Critical patent/JPS6259771B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

PURPOSE:To accomplish an accurate measurement regardless of slight alteration of measuring conditions by measuring variations in the length of a test piece evenly heated at a constant heating rate after the volume thereof is calculated from the weight and the true specific weight of coal finely crushed. CONSTITUTION:First, blended coal to be measured is finely crushed and compressed into a bar. The volume Vc of a test piece 3 is determined from the weight w thereof and the true specific weight rho. Then, the test piece 3 is placed into a measuring tubular vessel 1 whose inner diameter d is slightly larger than the outer diameter of the test piece and heated evenly at a constant heating rate. Consequently, it is expanded to the state 5. At this point, the length lD of the test piece 5 is measured to find an expansion coefficient by the equation. Unlike the conventional dilatometer only depending on the displacement of the piston, this ensures a stable measured value free from alteration of the charging bulk density.
JP10269780A 1980-07-25 1980-07-25 Indication of expansion coefficient for coal Granted JPS5728240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10269780A JPS5728240A (en) 1980-07-25 1980-07-25 Indication of expansion coefficient for coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10269780A JPS5728240A (en) 1980-07-25 1980-07-25 Indication of expansion coefficient for coal

Publications (2)

Publication Number Publication Date
JPS5728240A true JPS5728240A (en) 1982-02-15
JPS6259771B2 JPS6259771B2 (en) 1987-12-12

Family

ID=14334443

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10269780A Granted JPS5728240A (en) 1980-07-25 1980-07-25 Indication of expansion coefficient for coal

Country Status (1)

Country Link
JP (1) JPS5728240A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161454A (en) * 1985-01-09 1986-07-22 Sumitomo Metal Ind Ltd Method for quick measurement of caking property of coal
EP0485144A2 (en) * 1990-11-09 1992-05-13 The Standard Oil Company Method for measuring the coefficient of thermal expansion of coke
WO2010103828A1 (en) * 2009-03-10 2010-09-16 新日本製鐵株式会社 Method of determining dilatation of coal, method of estimating specific volume of coal, method of determining degree of space filling, and method of coal blending

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61161454A (en) * 1985-01-09 1986-07-22 Sumitomo Metal Ind Ltd Method for quick measurement of caking property of coal
JPH0469749B2 (en) * 1985-01-09 1992-11-09 Sumitomo Metal Ind
EP0485144A2 (en) * 1990-11-09 1992-05-13 The Standard Oil Company Method for measuring the coefficient of thermal expansion of coke
WO2010103828A1 (en) * 2009-03-10 2010-09-16 新日本製鐵株式会社 Method of determining dilatation of coal, method of estimating specific volume of coal, method of determining degree of space filling, and method of coal blending
CN102348977A (en) * 2009-03-10 2012-02-08 新日本制铁株式会社 Method of determining dilatation of coal, method of estimating specific volume of coal, method of determining degree of space filling, and method of coal blending

Also Published As

Publication number Publication date
JPS6259771B2 (en) 1987-12-12

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