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单词 over-vulcanization
释义

over-vulcanizationn.

Brit. /ˌəʊvəˌvʌlkənʌɪˈzeɪʃn/, U.S. /ˈˌoʊvərˌvəlkənəˈzeɪʃ(ə)n/, /ˈoʊvərˌvəlkəˌnaɪˈzeɪʃ(ə)n/
Origin: Formed within English, by derivation. Etymons: over- prefix, vulcanization n.
Etymology: < over- prefix + vulcanization n. Compare later over-vulcanize v.
Vulcanization for longer than is necessary to achieve the maximum modulus of elasticity; the overcuring of rubber.
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with rubber or plastic > [noun] > curing > for longer than necessary
over-vulcanization1900
overcuring1912
overcure1915
over-vulcanizing1916
1900 W. T. Brannt India Rubber, Gutta-percha & Balata iii. 111 If the articles are allowed to remain too long in the solution, over-vulcanization may take place, that is, the surface of the article becomes hard and brittle.
1955 Proc. Royal Soc. A. 230 135 The transition from a viscous fluid to a rubber-like amorphous solid..may well be related to the phenomenon of over-vulcanization of rubber.
1967 W. Hofmann Vulcanization & Vulcanizing Agents i. 24 Its symptoms [sc. those of postvulcanization] are thus very similar to the rising characteristic of tensile stress at a given elongation which is associated with overvulcanization.
2000 Rubber World (Nexis) 1 May 43 The danger of over-vulcanization at the product edge or surface and under-vulcanization at its core, which is present with..processes depending on heat transfer by conduction.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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n.1900
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