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单词 over-vulcanize
释义

over-vulcanizev.

Brit. /ˌəʊvəˈvʌlkənʌɪz/, U.S. /ˌoʊvərˈvəlkəˌnaɪz/
Forms: 1900s– overvulcanise, 1900s– overvulcanize.
Origin: Formed within English, by derivation. Etymons: over- prefix, vulcanize v.
Etymology: < over- prefix + vulcanize v. Compare earlier over-vulcanization n.
transitive. To subject to over-vulcanization; to make (rubber) hard or brittle by excessive vulcanizing; to overcure (rubber).
ΘΚΠ
society > occupation and work > industry > working with specific materials > working with rubber or plastic > work with rubber or plastic [verb (transitive)] > cure > for longer than necessary
over-vulcanize1911
overcure1916
1911 P. Schidrowitz Rubber xi. 172 Bysow..found that with a total sulphur of from 3·44 per cent. to 8·91 per cent. equilibrium was not produced until the samples were over-vulcanized.
1922 Encycl. Brit. XXX. 35/1 In 1916 some resistance to petrol was introduced by using pure para heavily loaded with mineral matter and rather over-vulcanized.
1967 W. Hofmann Vulcanization & Vulcanizing Agents i. 24 When an article is wholly or partly overvulcanized (thick-sectioned articles, for example, are sometimes overvulcanized at the surface), efficient protection against ageing is always necessary.

Derivatives

over-ˈvulcanizing n.
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
1916 Jrnl. Soc. Chem. Industry 31 Aug. 872/1 It is..common in the case of many goods for manufacturers when vulcanising to undercure rather than overcure the rubber so as to avoid the danger of over-vulcanising and consequent deterioration.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).
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