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Orientation of asbestos in asbestos cement
AbstractThe orientation of asbestos fibers in abestos cement can be described by a directional distribution function characterized by two parameters: σ12 — the distribution dispersion in a plane normal to the direction of the external pressure applied in forming the product (XOY plane), andσ22 — the distribution dispersion in a plane containing the direction of the applied pressure. The two parameters are determined by X-ray diffractometry. The value of σ2<15° for materials formed on Hatschek machines and accordingly 90–95% of fibers make an angle of less than 20° with the XOY plane. The number of fibres orientated approximately parallel to the direction of the felt movement is 1.5 to 2 times greater than the number orientated in the transverse direction.
РефератOpиeнтaция acσecтa oпиcнbaeтcя фyнкцтиeя pacпpeдeлeния пo нaпpabлeнияm и чapaктepиэyeтcя дbymя пapametpamи: σ12 — диcпepcиeя pacпpeдeлeния б плocкocти, нopmaлянoи нaпpabлeниy bнeщнeгo дabлeния, пpилaг фopmobaнии иэдeлия/плocкocть ЧOY/, иσ22 — диcпepcиeй pacпpeдeлeния b плocкocти, coдepжaщeи нaпpabлeниe пpилaгo дabлeния. Oσa пapameтpa oпpeдeляютcя peнtгeнoгpqфиm meтoдom. Beличинa σ2⩽15° для maтepиaлob, cфopmobaнныч нa кpyглoceтoныч maщинaч, и, cooтbeтcтbeннo, 90–95% boдoкoн cocтabлют c плocкocтью ЧOY yгoл meньщиь 20°. Для тeч зe maтepиpиaлob bσлиэи фaσpикaциoннoгo нaпpabлeния opиeнтиpyeтcя b I, 5-2 paэa σльщaя дoля boлoкoн, чem bσлиэи нaпpabлeния, нopmaльнoгo к фaσpикaциoннomy.
Orientation of asbestos in asbestos cement
AbstractThe orientation of asbestos fibers in abestos cement can be described by a directional distribution function characterized by two parameters: σ12 — the distribution dispersion in a plane normal to the direction of the external pressure applied in forming the product (XOY plane), andσ22 — the distribution dispersion in a plane containing the direction of the applied pressure. The two parameters are determined by X-ray diffractometry. The value of σ2<15° for materials formed on Hatschek machines and accordingly 90–95% of fibers make an angle of less than 20° with the XOY plane. The number of fibres orientated approximately parallel to the direction of the felt movement is 1.5 to 2 times greater than the number orientated in the transverse direction.
РефератOpиeнтaция acσecтa oпиcнbaeтcя фyнкцтиeя pacпpeдeлeния пo нaпpabлeнияm и чapaктepиэyeтcя дbymя пapametpamи: σ12 — диcпepcиeя pacпpeдeлeния б плocкocти, нopmaлянoи нaпpabлeниy bнeщнeгo дabлeния, пpилaг фopmobaнии иэдeлия/плocкocть ЧOY/, иσ22 — диcпepcиeй pacпpeдeлeния b плocкocти, coдepжaщeи нaпpabлeниe пpилaгo дabлeния. Oσa пapameтpa oпpeдeляютcя peнtгeнoгpqфиm meтoдom. Beличинa σ2⩽15° для maтepиaлob, cфopmobaнныч нa кpyглoceтoныч maщинaч, и, cooтbeтcтbeннo, 90–95% boдoкoн cocтabлют c плocкocтью ЧOY yгoл meньщиь 20°. Для тeч зe maтepиpиaлob bσлиэи фaσpикaциoннoгo нaпpabлeния opиeнтиpyeтcя b I, 5-2 paэa σльщaя дoля boлoкoн, чem bσлиэи нaпpabлeния, нopmaльнoгo к фaσpикaциoннomy.
Orientation of asbestos in asbestos cement
Zevin, L.S. (author) / Zevin, I.M. (author)
Cement and Concrete Research ; 9 ; 599-606
1979-05-21
8 pages
Article (Journal)
Electronic Resource
English
| Engineering Index Backfile | 1939
| Engineering Index Backfile | 1943
| Engineering Index Backfile | 1928
| Tema Archive | 1990
| Engineering Index Backfile | 1937