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SEALING OPERATION [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2026-01-08

English

Subject field(s)
  • Guns (Land Forces)
  • Guns (Naval)
CONT

The major problem to be solved with breechloading artillery was obturation : the sealing of the breech after firing to ensure that none of the gases generated by the burning of the propellant(initially gunpowder) escaped rearwards through the breech.... The second problem was speed of operation : how to close the breech before firing and open it after firing as quickly as possible consistent with safety. Two solutions were developed more or less in parallel : The "screw breech" block and "sliding wedge" or "sliding block. "

French

Domaine(s)
  • Canons (Forces terrestres)
  • Canons (Navires)

Spanish

Save record 1

Record 2 2003-11-13

English

Subject field(s)
  • Packaging
  • Food Industries
  • Plant and Crop Production
OBS

The operation of sealing food bags, containers.

French

Domaine(s)
  • Emballages
  • Industrie de l'alimentation
  • Cultures (Agriculture)
OBS

de sacs, de contenants pour aliments, engrais, produits chimiques, etc.

OBS

Le scellage est différent du soudage en ce qu'il réunit des matériaux grâce à une couche de scellage; le soudage ou thermosoudage se réalisant sans apport d'enduit.

Spanish

Campo(s) temático(s)
  • Embalajes
  • Industria alimentaria
  • Producción vegetal
Save record 2

Record 3 2000-11-02

English

Subject field(s)
  • Semiconductors (Electronics)
  • Printed Circuits and Microelectronics
DEF

The cuplike cover that encloses the package in the final sealing operation.

French

Domaine(s)
  • Semi-conducteurs (Électronique)
  • Circuits imprimés et micro-électronique

Spanish

Save record 3

Record 4 1993-05-13

English

Subject field(s)
  • Packaging Machinery and Equipment
DEF

A vacuum packaging machine which vacuum form-fills and seals containers with food products in plastic bags under a special pressure chamber.

CONT

A wide range of equipment is now available for vacuum packaging of non-rigid containers. The most highly developed are those which permit of a fully automatic operation, involving pocket forming from reel-fed material, filling and vacuum sealing. For dealing with pockets filled separately, a number of vacuum-sealing machines are available. These may be of the chamber or probe type. With the former, the pocket is placed into the chamber, air withdrawn from both the chamber and pocket, and the pocket sealed in situ by remotely controlled heat-sealing jaws before the chamber pressure is returned to atmospheric.

OBS

Chamber vacuum-packaging machinery includes single- and double-chamber as well as a conveyor-fed system.

French

Domaine(s)
  • Machines et équipement d'emballage
DEF

Machine utilisée pour le conditionnement sous vide des charcuteries, viandes, légumes traités, etc., par l'introduction de ces derniers dans des sacs de plastique sous une cloche à vide montée sur carrousel.

OBS

Pour le conditionnement sous vide en sachet (...) une intéressante machine était présentée à Tokyo-Pack. (...) cette machine est destinée à compléter l'opération de fabrication-remplissage des sachets sur machine partant d'une ou de deux bobines de matériau (...) Les sachets remplis sur lesquels les soudures transversales n'ont pas été effectuées sont amenés par tapis transporteur sur la machine FURUKAWA qui les saisit, les introduit un à un dans les cloches à vide montées sur carrousel (...) qui contiennent les éléments de soudure (...) Cette machine est très utilisée pour le conditionnement sous vide des charcuteries, viandes, légumes traités, etc.

Spanish

Save record 4

Record 5 1990-09-07

English

Subject field(s)
  • Packaging Techniques
  • Packaging in Plastic
  • Plastics Manufacturing
CONT

Hot-wire or knife sealing is adaptable to a very high speed operation and is used for both sealing and cutting apart polyethylene bags on bag-making equipment.... Unsupported films, when trim sealed by this method, tend to form a strong bead in their seal areas due to surface tension and orientation. This method is also used to a limited degree with laminated constructions. Hot-wire cutoff is also used in film-dispensing equipment and with L sealers.

French

Domaine(s)
  • Techniques d'emballage
  • Emballages en matières plastiques
  • Plasturgie
CONT

Soudure-coupure par fil ou barre chauffante (...) Principe (...) Un fil chaud ou des lames découpent et soudent le film en une même opération. (...) Principales applications (...) Films rétractables (emballage de revues, livres, etc.).

OBS

Bien que contesté entre autres par le Grand Dictionnaire Encyclopédique Larousse, le terme "soudure" est employé au sens de "soudage" (l'opération) par les auteurs de "l'emballage sous toutes ses facettes" (code : BEMBA, 1988), ouvrage piloté par le Laboratoire National d'Essais de France et la revue Emballages Magazine.

Spanish

Save record 5

Record 6 1990-09-07

English

Subject field(s)
  • Packaging Techniques
  • Packaging in Plastic
  • Plastics Manufacturing
CONT

Hot-wire or knife sealing is adaptable to a very high speed operation and is used for both sealing and cutting apart polyethylene bags on bag-making equipment.... Unsupported films, when trim sealed by this method, tend to form a strong bead in their seal areas due to surface tension and orientation. This method is also used to a limited degree with laminated constructions. Hot-wire cutoff is also used in film-dispensing equipment and with L sealers.

French

Domaine(s)
  • Techniques d'emballage
  • Emballages en matières plastiques
  • Plasturgie
OBS

Soudure-coupe par fil ou barre chauffante (...) Principe (...) Un fil chaud ou des lames découpent et soudent le film en une même opération. (...) Principales Applications (...) Films rétractables (emballage de revues, livres, etc.).

OBS

Bien que contesté entre autres par le Grand Dictionnaire Encyclopédique Larousse, le terme "soudure" est employé au sens de "soudage" (l'opération) par les auteurs de "L'emballage sous toutes ses facettes" (code : BEMBA, 1988), ouvrage piloté par le Laboratoire National d'Essais de France et la revue Emballages Magazine.

Key term(s)
  • soudure-coupe par lames chauffantes

Spanish

Save record 6

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