JPS60193686U

JPS60193686U - far infrared heating device

Info

Publication number: JPS60193686U
Application number: JP8234784U
Authority: JP
Inventors: 石　利治
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-06-01
Filing date: 1984-06-01
Publication date: 1985-12-23

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の実施例を略示する一部欠截右側面図、
第２図は第１図のＩ−Ｉ線よりみた拡大断面図、第３図
は同じく他の実施例の要部のみを示す拡大断面図である
。１・・・加熱筒、１２・・・セラミックス層、３・・・
移送用スクリュー、４・・・発熱筒、４１・・・金属製
基板、４２・・・セラミックス層、４３・・・抵抗発熱
体、４４・・・電気絶縁材、４５・・・断熱材層、４６
・・・金属製カバー、４７・・・分割面、４８・・・通
気孔、５・・・加熱筒と発熱筒との間の間隙。FIG. 1 is a partially cutaway right side view schematically showing an embodiment of the present invention;
FIG. 2 is an enlarged sectional view taken along line II in FIG. 1, and FIG. 3 is an enlarged sectional view showing only the main parts of another embodiment. 1... Heating tube, 12... Ceramic layer, 3...
Transfer screw, 4... Heat generating cylinder, 41... Metal substrate, 42... Ceramic layer, 43... Resistance heating element, 44... Electrical insulating material, 45... Heat insulating material layer, 46
...Metal cover, 47... Dividing surface, 48... Vent hole, 5... Gap between heating tube and heat generating tube.

Claims

[Scope of utility model registration request]

(1) A cylindrical metal heating cylinder through which the synthetic resin material to be melted and plasticized passes, and the outer periphery of this heating cylinder,
It consists of a cylindrical heating cylinder surrounding the core with an even gap between the core and the heating cylinder, which consists of a cylindrical metal substrate, a thin ceramic layer covering the inner peripheral surface of the substrate, and a thin ceramic layer that covers the inner peripheral surface of the substrate. Far-infrared heating is characterized by being formed of resistance heating elements arranged closely and evenly spaced around the outer circumferential surface of the substrate, an electrical insulating material protecting them, and a thick heat insulating layer covering the outer periphery of the resistive heating elements. Device.

(2) The far infrared rays described in claim 1 of the utility model registration claim, characterized in that the outer peripheral surface of the metal heating cylinder is covered with a thin ceramic layer or an oxide film layer formed by chemical conversion treatment or heat treatment. heating device.

(3) The entire cylindrical heating cylinder is divided into a plurality of parts along a plane parallel to the center of the cylinder, and the dividing planes are abutted against each other and surround the outer periphery of the metal heating cylinder. A far-infrared heating device as set forth in claim 1 of the utility model registration claim, which is characterized by:

(4) A utility model registration claim characterized in that a cylindrical heating cylinder is provided with one or more ventilation holes that penetrate in the radial direction and reach the gap between the heating cylinder and the heating cylinder. The far infrared heating device described in Items 1 and 3.