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Thermally insulated melt processor and process for melt processing with same

A processing device and melt technology, applied in electric heating devices, furnace heating elements, and other household appliances, can solve problems such as uneven thermal contact, hot spots, and thermal damage to components

Inactive Publication Date: 2016-04-20
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Also, because the heater has uneven thermal contact with the extruder, hot spots can occur and some parts of the extruder can be thermally damaged

Method used

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  • Thermally insulated melt processor and process for melt processing with same
  • Thermally insulated melt processor and process for melt processing with same
  • Thermally insulated melt processor and process for melt processing with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0057] Embodiment 1: An adiabatic melt processor comprising: a barrel; and a heater disposed on the barrel, wherein the heater includes: an insulating material in contact with a surface of the barrel; and A heating member is disposed within the insulating material and configured to provide heat in response to conduction of electrical current through the heating member.

Embodiment approach 2

[0058] Embodiment 2: The thermally insulated melt processor of Embodiment 1, wherein the heater further comprises: a support disposed on a surface of the insulating material opposite to the barrel, the support The body prevents a gap between the heater and the barrel.

Embodiment approach 3

[0059] Embodiment 3: The thermally insulated melt processor of Embodiment 2, wherein the support is detachable from the heater. Embodiment 4: The thermally insulated melt processor of any of Embodiments 2-3, wherein the support body comprises a metal, ceramic, polymer, or a combination comprising at least one of the foregoing.

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Abstract

A thermally insulated melt processor comprises a barrel (10) and a heater (40) disposed on the barrel. The heater comprises an insulating material (42) in contact with a surface of the barrel and a heat member (44) disposed in the insulating material and configured to provide heat in response conduction of electric current through the heat member.

Description

Background technique [0001] Extruding polymeric material while heated requires considerable power due to the inefficiency of heat transfer to the extruder. This inefficiency is due in part to the inefficient thermal contact between the external metal heater and the extruder. Furthermore, heat radiates to the area surrounding the extruder rather than being transferred to the body of the extruder, causing heat loss to the surrounding area, which causes the temperature of the area to rise. This area therefore requires increased power dissipation due to active cooling of this area, eg by forced air or cooling air convection around the extruder. Furthermore, exposed heaters operating at temperatures sufficient to drive the thermal load of the extruder and its polymeric contents are often at temperatures above the skin tissue damage threshold, which is approximately 52°C. To avoid direct skin contact with such a heater, a metal cover is placed over the extruder and heater. The me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/42B29B7/48B29B7/82B29C47/08B29C47/82B29C48/03B29C48/68
CPCB29B7/428B29B7/488B29B7/823B29B7/826B29C2948/92704B29C48/03B29C48/2565B29C48/68B29C2948/92895B29C48/802B29C48/832Y02P70/10B29C48/275B29C48/78B29B13/022H05B1/023H05B3/62B29K2023/00B29K2069/00B29L2031/00
Inventor 凯文·斯科特·沃斯默富兰克林·埃伦斯贝克萨德·威廉·艾伦史蒂芬·迈克尔·华莱士托马斯·厄舍·埃布尔杰拉尔德·哈格多恩
Owner SABIC GLOBAL TECH BV