JPH0776430B2 - Equipment with radiant heat control surface treatment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device subjected to radiant heat control surface treatment, and particularly to an outer surface treatment of a device subjected to radiant heat control surface treatment which receives radiation from outside during use. Regarding the improvement of.

[Conventional technology]

A conventional device that has been subjected to this type of radiant heat control surface treatment is a transparent plate made of glass or plastic in which a metal mirror surface is formed on the outer surface of the device for radiant heat control, and metal is vapor-deposited on one surface (see the reference document below. Then, OSR or aluminum or silver vapor-deposited Teflon) is attached so that the metal vapor-deposited surface serves as a secondary surface mirror for radiation heat from the outside of the device, and the metal vapor-deposited surface is in contact with the metal mirror surface of the device. (Corporate body: published by Japan Aerospace Industry Association, 1987 Space Development Agency commissioned work result report, NASDA design standard draft preparation support (1/2), artificial hygiene heat control system design standard, pp57, pp58 and pp83 , 1988). When this kind of radiant heat control surface treatment by the transparent plate is ideally performed, the radiant heat control device does not allow light rays or radiant heat incident on the outer surface of the device from the outside to enter the device. On the other hand, the heat generated inside the device is reflected to the outside by the secondary surface mirror, and is radiated to the outside by the secondary surface mirror of the metal surface and the transparent plate without being reflected to the inside of the device. Radiant heat control of is achieved.

[Problems to be Solved by the Invention] Since the above-mentioned conventional equipment that has been subjected to radiant heat control surface treatment uses a sticking method, the transparent plate is adhered to the outer surface of the equipment having a complicated outer shape. Since it cannot be attached and a gap is formed between the metal mirror surface and the secondary surface mirror, the heat generated by the device is reflected from the secondary surface mirror to the inside of the device, so that sufficient radiation heat control can be performed. I can not expect,
Further, if a plastic material is used, it can be attached to the outer surface having a gentle uneven shape, but there is a problem that the resistance to use in a high temperature environment is inferior to that of a glass material.

It is an object of the present invention to solve the above-mentioned problems and to form a treated surface which can be applied to an outer surface having a complicated shape and has excellent heat resistance during use, and thereby sufficient radiant heat control can be achieved. It is to provide a device which has been subjected to surface treatment.

[Means for Solving the Problems]

A device subjected to radiant heat control surface treatment of the present invention comprises a heat control device having a metal mirror surface formed on the outer surface, and a glassy dielectric layer which is vapor-grown in close contact with the metal mirror surface. .

〔Example〕

 Next, the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the present invention. The outer surface 1 of the device for controlling radiant heat has a mirror surface of a predetermined shape formed by metal mirror surface processing or vapor deposition or plating of a metal material. On the mirror surface of the outer surface 1 of the device, a glassy dielectric material such as silicon oxide (fused silica: SiO2), silicate, borate (eg, Ohm Co. Published, Electronic Information and Communication Handbook, pp452 to pp455, especially pp454, March 1988, and published by Asakura Shoten, Applied Spectroscopy Handbook, pp245 to pp253, especially pp25
2, November 1973) is directly deposited to form the dielectric layer 2. The vapor-grown dielectric layer 2 closely covers the mirror surface of the device outer surface 1, and the surface in contact with this mirror surface acts as a secondary surface mirror of the device surface 1. After the deposition, if it is necessary to improve the adhesiveness and the transparency of the dielectric layer 2, the material of the dielectric layer 2 is made uniform by heat treatment.

FIG. 2 is a partially enlarged cross-sectional view for explaining the thermal control situation in this embodiment. As shown by an arrow A, a light ray incident from the outside is transmitted through the dielectric layer 2 and then reflected outward by the mirror surface of the device outer surface 1 and is not absorbed by the device outer surface 1. On the other hand, heat generated from the inside of the device is conducted from the device outer surface 1 to the dielectric layer 2 which is in close contact with the device as indicated by an arrow B, and is further radiated to the outside as infrared radiation as indicated by an arrow C. As a result, on the equipment surface 1 of the radiant heat control equipment of this embodiment, the incident heat from the outside is well reflected and the heat is radiated to the outside.

As described above, the device subjected to the radiant heat control surface treatment according to the present invention adheres to the mirror surface of the device outer surface 1 such that the portion corresponding to the secondary surface mirror of the transparent glassy dielectric layer 2 is in contact with the mirror surface of the device. Since the surface treatment of forming is performed, it is possible to sufficiently control radiant heat even on an outer surface having a complicated shape and to obtain an effect of excellent heat resistance.

〔The invention's effect〕

As described above, the present invention includes a thermal control device having a metal mirror surface formed on the outer surface, and a glassy dielectric layer that is vapor-grown in close contact with the metal mirror surface. Even if the outer surface has a complicated shape or is made of a material other than metal, radiant heat can be sufficiently controlled, and a treated surface having excellent heat resistance during use can be obtained.

[Brief description of drawings]

1 and 2 are a sectional view and a partially enlarged sectional view of an embodiment of the present invention. 1 ... outer surface of device, 2 ... dielectric layer.

Claims (1)

[Claims] 1. A radiant heat control surface comprising: a thermal control device having a metal mirror surface formed on an outer surface thereof; and a glassy dielectric layer which is vapor-phase grown in close contact with the metal mirror surface. Equipment that has been treated.