Technology for machining two surfaces of infrared window piece

An infrared window, double-sided processing technology, applied in the field of infrared windows, can solve the problems of unguaranteed parallelism of flat sheets, urgent, low efficiency, etc., and achieves the effect of overcoming operational factors, facilitating adjustment, and improving parallelism

Inactive Publication Date: 2010-09-15
江苏南晶红外光学仪器有限公司
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Problems solved by technology

According to this method of production, not only is the efficiency low, but also it is easy to damage the already thrown side when throwing the other side, and the parallelism of the flat sheet canno

Method used

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[0014] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0015] A double-sided processing technology for infrared windows uses a double-sided grinder for grinding, and a polishing machine for polishing. The grinding is performed first and then the polishing is performed. The process steps are as follows:

[0016] For fine grinding, put the infrared window in the cruise ship, and then perform primary grinding on the cast iron hand mold. After the quality requirements are met, the fine grinding is carried out. The hand disc is used for fine grinding and the fine abrasive is used for grinding. During the grinding process, Change the position so that the infrared window can adjust its own accu...

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Abstract

The invention relates to a technology for machining two surfaces of an infrared window piece, which performs the grinding with a two-surfaces grinding machine and performs the polishing with the two-surfaces grinding machine, wherein the grinding is firstly performed and the polishing is sequentially preformed. The technology comprises the following steps of: putting an infrared window piece in a loose pulley; primarily grinding on an iron-cast flat mould; fine grinding after the infrared window piece is detected to achieve the quality requirement, wherein the fine grinding is performed by a special flat disc; grinding with refined grinding materials, wherein the position is continually changed during grinding; putting the fine grinded infrared window piece on a polyurethane polishing disc to coarsely polish, so that the surface of the infrared window piece achieves the required precision; and fine polishing the eligible infrared window piece after coarse polishing with a polishing disc which is made from synthetic material of asphalt and rosin to guarantee the quality of the machined product through fine correction. The technology can improve the quality of the smooth finish of the infrared window piece, can improve the quality of the parallelism degree thereof, and can improve the machining efficiency thereof.

Description

technical field [0001] The invention relates to an infrared window used in the semiconductor industry and infrared optical instruments, in particular to a double-sided processing technology of the infrared window. Background technique [0002] Germanium, silicon, and zinc selenide are several special materials that transmit infrared light, which are mainly used in the semiconductor industry and various infrared optical instruments, such as: various infrared thermometers, various infrared thermal imagers, night vision devices and high-power carbon dioxide lasers. Widely used in high-end technology, national defense, aviation and other fields, it plays an extremely important role. [0003] If the customer needs a double-flat lens, according to the previous polishing process, we need to polish it twice, that is, the front side is polished and then the back side is polished. Production according to such a method is not only inefficient, but also easily damages the side that ha...

Claims

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Application Information

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IPC IPC(8): B24B29/02
Inventor 陈国清李爽
Owner 江苏南晶红外光学仪器有限公司
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