pre-impregnationn.

Brit.

/ˌpriːɪmprɛɡˈneɪʃn/, U.S.

/ˈˌpriˌɪmprɛɡˈneɪʃ(ə)n/

Origin: Formed within English, by derivation. Etymons: pre- prefix, impregnation n.

Etymology: < pre- prefix + impregnation n. Compare slightly earlier pre-impregnated adj. and later pre-impregnate v.

Manufacturing Technology.

The process of impregnating a material with a substance prior to further processing. Cf. pre-impregnated adj.

ΘΚΠ

society > occupation and work > industry > manufacturing processes > [noun] > processing > types of preliminary processing

grounding1466

roughing1743

preheating1898

pre-cooling1907

presoak1919

presoaking1919

premixing1927

prestress1934

pre-tension1936

pre-impregnation1937

pre-cutting1939

preloading1941

the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > cable > insulated cable > action of insulating

pre-impregnation1937

1937 Jrnl. Inst. Electr. Engineers 81 634/1 With proper attention to the physical properties of the impregnating medium, this pre-impregnation ensures the absolute definition of the gas spaces up to the maximum working temperature of the cable.

1965 Mod. Plastics Encycl. 1966 628/1 A preimpregnation step is frequently used, in which the reinforcing web is passed through a resin bath before lay-up.

1976 Hitachi Rev. 25 369 This article describes recent trends toward pre-impregnation and H-class stator coil insulations in large rotating machines.

1995 Cryogenics 35 719 Matrix materials consisted of..a tetrafunctional epoxy suitable for pre-impregnation, [etc.].

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	pre-impregnation
释义	pre-impregnationn. Brit. /ˌpriːɪmprɛɡˈneɪʃn/, U.S. /ˈˌpriˌɪmprɛɡˈneɪʃ(ə)n/ Origin: Formed within English, by derivation. Etymons: pre- prefix, impregnation n. Etymology: < pre- prefix + impregnation n. Compare slightly earlier pre-impregnated adj. and later pre-impregnate v. Manufacturing Technology. The process of impregnating a material with a substance prior to further processing. Cf. pre-impregnated adj. ΘΚΠ society > occupation and work > industry > manufacturing processes > [noun] > processing > types of preliminary processing grounding1466 roughing1743 preheating1898 pre-cooling1907 presoak1919 presoaking1919 premixing1927 prestress1934 pre-tension1936 pre-impregnation1937 pre-cutting1939 preloading1941 the world > matter > physics > electromagnetic radiation > electricity > electrical power, electricity > distribution system > [noun] > cable > insulated cable > action of insulating pre-impregnation1937 1937 Jrnl. Inst. Electr. Engineers 81 634/1 With proper attention to the physical properties of the impregnating medium, this pre-impregnation ensures the absolute definition of the gas spaces up to the maximum working temperature of the cable. 1965 Mod. Plastics Encycl. 1966 628/1 A preimpregnation step is frequently used, in which the reinforcing web is passed through a resin bath before lay-up. 1976 Hitachi Rev. 25 369 This article describes recent trends toward pre-impregnation and H-class stator coil insulations in large rotating machines. 1995 Cryogenics 35 719 Matrix materials consisted of..a tetrafunctional epoxy suitable for pre-impregnation, [etc.]. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < n.1937
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