MX2019002988A - Cubierta moldeada de peso ligero. - Google Patents

Cubierta moldeada de peso ligero.

Info

Publication number
MX2019002988A
MX2019002988A MX2019002988A MX2019002988A MX2019002988A MX 2019002988 A MX2019002988 A MX 2019002988A MX 2019002988 A MX2019002988 A MX 2019002988A MX 2019002988 A MX2019002988 A MX 2019002988A MX 2019002988 A MX2019002988 A MX 2019002988A
Authority
MX
Mexico
Prior art keywords
layers
reinforcement
reinforcement layer
fiberglass
core
Prior art date
Application number
MX2019002988A
Other languages
English (en)
Inventor
David FAGAN Lemuel
Alden Chudley Keith
Stephen Forsten Ernest
David Estes Jason
Original Assignee
Hubbell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hubbell Inc filed Critical Hubbell Inc
Publication of MX2019002988A publication Critical patent/MX2019002988A/es

Links

Classifications

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    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
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    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
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    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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    • B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Wood Science & Technology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Sewage (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Buffer Packaging (AREA)
  • Wrappers (AREA)

Abstract

Se describe una cubierta para una bóveda de utilidad y un método para hacer dichas cubiertas. La cubierta está formada por capas de refuerzo de fibra de vidrio, un núcleo de baja densidad y una matriz de mezcla de polímeros. Las capas de refuerzo incluyen una capa de refuerzo inferior, una o más capas de refuerzo de borde y una capa de refuerzo superior. Una primera porción de la capa de refuerzo de borde se superpone a una porción de la capa de refuerzo inferior y una segunda porción de la capa de refuerzo de borde se superpone a una porción de la capa de refuerzo superior. El núcleo se coloca entre las capas de refuerzo superior e inferior. Las capas de refuerzo están formadas a partir de tejido de fibra de vidrio y pueden incluir capas de fibra de vidrio cuyas fibras están orientadas de forma curaxial. La mezcla de polímeros impregna las capas de tela, encierra el núcleo y une los componentes. La matriz polimérica incluye una resina polimérica termoestable.
MX2019002988A 2018-03-15 2019-03-14 Cubierta moldeada de peso ligero. MX2019002988A (es)

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US20240125079A1 (en) 2024-04-18
US20190284778A1 (en) 2019-09-19
US11873613B2 (en) 2024-01-16

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