Method for producing a molded part, and a molded part thus produced
A molding and blow molding technology, which is used in the field of manufacturing moldings and such manufactured moldings, can solve the problems of damage to moldings, reduce the strength and shape stability of moldings, and achieve the effect of high stability.
Inactive Publication Date: 2012-05-16
REHAU AG & CO
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0006] A disadvantage of this known prior art is that when the molded parts are operated in an environment with elevated temperatures, for example in the engine compartment of a motor vehicle, the heat prevailing there can significantly reduce the strength and shape stability of the molded parts. sex
This can lead to damage to molded parts
Method used
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Embodiment
[0107] A blow-moldable polyethylene having an MFI of 0.3 g / 10 min at 190° C. under a load of 2.16 kg was blow-molded into a molded part in the form of a container.
[0108] Blow moldable polyethylene has a density of 0.95g / cm 3 .
[0109] Blow-moldable polyethylene contains organic peroxides, which have a crosslinking temperature of 175°C.
[0110] After shaping, the blown hollow body is subjected to a temperature of 240° C. over a period of 5 min for crosslinking. For this purpose, the hollow body is held in shape by the supporting air against unintentional deformations.
[0111] After the hollow body has cooled, the hollow body is wound with carbon fibers, which are impregnated with epoxy resin, until a layer thickness of 15 to 45 mm is achieved.
[0112] The container is durable and stable at a sustained temperature of 150°C.
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Abstract
The invention relates to a molded part for accommodating, conducting, or storing a fluid, having a hollow body delimited by a wall lining, and at least one device for feeding fluids to the hollow body, and / or discharging fluids therefrom. The molded part is characterized in that the wall lining contains cross-linked polyethylene.
Description
technical field [0001] The invention relates to a method for producing a molded part and a molded part produced in this way for receiving, conveying or storing a fluid, which has a hollow body and at least one device for supplying a fluid to or removing a fluid from the hollow body means, the hollow body is bounded by a wall. [0002] Finally the invention relates to a fluid supply system comprising at least one such profiled part. Background technique [0003] Shaped parts for receiving, conveying or storing gaseous or liquid media are known from the prior art, each of which has a hollow body with a wall. [0004] Such molded parts are used, for example, in the form of containers for supplying fluids in motor vehicles, the containers containing and supplying gaseous or liquid, sometimes combustible materials. [0005] It is also known from the prior art that the walls of the molded part consist of a polymer material. [0006] A disadvantage of this known prior art is tha...
Claims
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IPC IPC(8): B29D22/00B29C49/00B29C35/02
CPCB29K2305/00F16L9/121B32B27/26B32B1/08B29C49/00B29C53/58B29C71/04B32B27/12B29C2035/0827B29K2277/10B29K2023/06B29L2023/00B29K2995/0063B32B27/16B29C53/00B29C2035/0877B29D23/00B29C49/04B29C63/24B32B27/32B29C2035/085Y10T137/8593
Inventor D·格里贝尔V·伯姆A·厄尔施勒格尔N·洪海泽K·温特A·赛弗特
Owner REHAU AG & CO