JPS57211541A - Measurement of moisture content in molding sand and its device - Google Patents

Measurement of moisture content in molding sand and its device

Info

Publication number
JPS57211541A
JPS57211541A JP9811181A JP9811181A JPS57211541A JP S57211541 A JPS57211541 A JP S57211541A JP 9811181 A JP9811181 A JP 9811181A JP 9811181 A JP9811181 A JP 9811181A JP S57211541 A JPS57211541 A JP S57211541A
Authority
JP
Japan
Prior art keywords
sand
molding sand
moisture content
measured
molding
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
JP9811181A
Other languages
Japanese (ja)
Inventor
Tsutomu Shibata
Katsuji Uchimura
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.)
Sintokogio Ltd
Shinto Industrial Co Ltd
Original Assignee
Sintokogio Ltd
Shinto Kogyo KK
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 Sintokogio Ltd, Shinto Kogyo KK filed Critical Sintokogio Ltd
Priority to JP9811181A priority Critical patent/JPS57211541A/en
Publication of JPS57211541A publication Critical patent/JPS57211541A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material

Abstract

PURPOSE:To measure moisture content in molding sand without influence of variation in the bulk density of the sand by filling an electrically insulated cylinder with molding sand and compressing the molding sand with two electrode sections and applying voltage between the electrodes and measuring the electric current through the sand. CONSTITUTION:An electrically insulating cylindrical body 4 is supported by a supporting section 3, and it is put on an electricity conductive plate 6 on a receiving base 7, and molding sand is supplied into the cylindrical body 4 from the hollow section 11 of an inverted cone-shaped trapezoid. A piston rod 16 that has a pressing member 18 made of an electricity conductivity material is lowered to compress the molding sand with suitable pressure between the plate 6 and the member 18, and a voltage is applied to the sand, using both the plate 6 and the member 18 as electrodes. The current through the sand is measured and from the resistance of the sand its moisture content is measured. When the compressive pressure is over 0.33kg/cm<2>, the moisture content in a large range can be measured with stable and high accuracy without the influence from the bulk density of the molding sand.
JP9811181A 1981-06-23 1981-06-23 Measurement of moisture content in molding sand and its device Pending JPS57211541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9811181A JPS57211541A (en) 1981-06-23 1981-06-23 Measurement of moisture content in molding sand and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9811181A JPS57211541A (en) 1981-06-23 1981-06-23 Measurement of moisture content in molding sand and its device

Publications (1)

Publication Number Publication Date
JPS57211541A true JPS57211541A (en) 1982-12-25

Family

ID=14211207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9811181A Pending JPS57211541A (en) 1981-06-23 1981-06-23 Measurement of moisture content in molding sand and its device

Country Status (1)

Country Link
JP (1) JPS57211541A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015519200A (en) * 2012-06-13 2015-07-09 新東工業株式会社 Casting sand kneading adjustment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124178B1 (en) * 1970-03-03 1976-07-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5124178B1 (en) * 1970-03-03 1976-07-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015519200A (en) * 2012-06-13 2015-07-09 新東工業株式会社 Casting sand kneading adjustment method
US10144054B2 (en) 2012-06-13 2018-12-04 Sintokogio, Ltd. Mixing and water adjusting method for foundry sand

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