CN101875886A - Sapphire infrared window cleaning agent and preparation method - Google Patents

Abstract

The invention relates to a sapphire infrared window cleaning agent and a preparation method. The sapphire infrared window cleaning agent is characterized by comprising 1472-1840 parts by weight of concentrated sulfuric acid, 300-500 parts by weight of potassium dichromate and 4000-5500 parts by weight of water. When used to clean a sapphire window, the cleaning agent is non-corrosive on human body at normal temperature because the cleaning agent is not volatile easily, thus the cleaning agent has safe and convenient use without corroding and damaging polishing surfaces in the cleaning process and can ensure that the surface quality and the surface finish quality of the sapphire infrared window are not damaged.

Description

Sapphire infrared window cleaning agent and preparation method

Technical field

The present invention relates to a kind of clean-out system, particularly a kind of sapphire infrared window is after chemically machinery polished, for clean-out system of removing surface adhesion agent and dirt settling and preparation method thereof.

Background technology

Synthetic sapphire has good performance at visible light in 5.6 μ spectral ranges, transmitance at 3-5 μ wave band is higher than 85%, therefore be a kind of good ir transmitting material, be widely used in making the infra-red transmitting window mouth of infrared eye, maximum with the infrared light that guarantees infrared eye sees through and collects, thereby realizes the effect of photoelectric best transition.Usually sapphire infrared window need adopt the polishing of chemical machinery technology, and after its polishing, the smooth finish of window reaches below 0.3 nanometer, dust and static are very easily adsorbed in the surface, and also used bonding glue in the course of processing, influence the clean-up performance of window surface, directly influenced the saturating rate of mistake of window.Simultaneously, window surface is unholiness, easily produces scratch in packing and use, and any defective of window surface all can influence the photoelectric conversion effect.The batch of realizing terminal cleans, and reaches out the i.e. effect of usefulness of box, and the proportioning of acidic cleaner becomes the difficult point that sapphire window is cleaned processing.

Traditional purging method has: organic solvent cleans, the hydrofluoric acid clean method.Wherein, organic solvent cleans, and the organic solvent of employing generally has toluene, alcohol, ether, and its purging method is to place workpiece airtight solvent to soak certain hour, take out the back with deionized water repeatedly towards Xian clean after, dry or dry up.Clean with this clean-out system, the debris of water pelmatogram or polishing is left on the sapphire window surface easily, needs the single-piece wiping, and cleaning performance is bad, efficient is low, can not be used for producing in batches; The hydrofluoric acid clean method is that workpiece is placed airtight solvent soaking certain hour or heating, stops heating when adularescent smog is overflowed, and alcohol wash is used with flushing with clean water for several times again in the cooling back, dries up or dries.This method, because hydrofluoric acid is strong acid, volatilization easily, human body contact at normal temperatures has hormesis, in addition, in heat-processed, when temperature surpasses 300 ℃, also can corrode the sapphire window polished surface, causes the damage of polished surface.

Traditional purging method is: sapphire window must be washed before use again, guarantees degree of cleaning with it, just can install and use, and can only be that single-piece is cleaned when cleaning, and the shortcoming of the trouble used is arranged.

Summary of the invention

The purpose of this invention is to provide a kind of is to find a kind of sapphire infrared window cleaning agent and preparation method thereof.Adopt clean-out system of the present invention to clean sapphire window, under the normal temperature human body is not had corrosive nature, clean-out system is not volatile, and is safe and convenient to use, can the corrosion damage polished surface in the cleaning process, can guarantee the surface quality and the surface smoothness not damaged of sapphire infrared window.

Technical scheme of the present invention is as follows:

Sapphire infrared window cleaning agent is made up of the vitriol oil, potassium bichromate and water, and each component is:

Vitriol oil 1472-1840 weight part;

Potassium bichromate: 300-500 weight part;

Water: 4000-5500 weight part.

1 weight part of the present invention is gram or kilogram.

The present invention all adopts the commercial reagent, wherein

It is 98% that the vitriol oil adopts analytical pure concentration; Potassium bichromate adopts chemical pure, and purity is not less than 99%; The hydromining deionized water.

Prepare the method for sapphire infrared window cleaning agent, following steps arranged:

(1) accurately takes by weighing potassium bichromate 300-500 weight part;

(2) accurately measure deionized water 4000-5500 weight part, step (1) gained potassium bichromate is poured into wherein, the limit bevelling stirs, and all is dissolved in the water until potassium bichromate, has been mixed with potassium bichromate solution;

(3) the weighting profit requires 50% of 1 described concentrated acid sulphur gross weight, slowly pour in the described potassium bichromate solution of step (2), the limit bevelling evenly stirs with glass stick, by the time do not emit Bai Yanshi, after leaving standstill 30 minutes, again second half vitriol oil is added, repeat aforesaid operations, left standstill 120 minutes, and promptly got sapphire infrared window cleaning agent.

The present invention has realized a multi-disc cleaning of infrared window, reaches cleaning surfaces, opens box is promptly used (that is: the user need not clean again, can directly use) before installation effect.

Table 1 is that the performance of three kinds of sapphire infrared window cleaning agents is as follows:

Table 1

Embodiment

Each component of sapphire infrared window cleaning agent is according to the described configuration of table 2:

Table 2

Sequence number	The vitriol oil (gram)	Potassium bichromate (gram)	Water (gram)
				??1	??1472	??320	??4000
??2	??1656	??360	??450
				??3	??1840	??400	??5000

The concrete making step of sapphire infrared window cleaning agent is as follows:

(1) weigh: the clean newspaper of pad last layer on the electronics Libra, take out potassium bichromate with spoon and be contained on the newspaper, according to the described weight that accurately takes by weighing potassium bichromate of table 2.To wear protective gloves in the whole process, can not catch and touch potassium bichromate.

(2) preparation potassium bichromate solution: in the beaker of 5000ml according to the described deionized water of accurately measuring of table 2, the potassium bichromate that has weighed up is poured into wherein, use clean glass stick to stir while adding, all be dissolved in the water, promptly be mixed with potassium bichromate solution until potassium bichromate.To wear protective gloves in the whole process, note stirring, prevent liquid splash.

(3) preparation acidic solution: get according to 50% of the described concentrated acid sulphur of table 2, slowly pour in the potassium bichromate solution that has prepared along walls of beaker, the limit bevelling stirs with glass stick, make its heat radiation and mix, by the time do not emit Bai Yanshi, leave standstill 30 minutes after, again second half vitriol oil is added, its working method left standstill 120 minutes as hereinbefore.To wear protective gloves in the whole process, wear masks; It is slow that action is wanted, just in case the vitriol oil spatters in the eyes or splashes on the skin, immediately with clear water towards Xian.Attention: potassium bichromate solution can't be poured in the vitriol oil.

(4) preserve: after treating whole solution cooling, put into shady and cool place and properly preserve, and stick sign.

Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so the present invention's protection domain is as the criterion when looking the claim person of defining.

Claims (2)

1. a sapphire infrared window cleaning agent is characterized in that being made up of the vitriol oil, potassium bichromate and water, and each component is:

Vitriol oil 1472-1840 weight part;

Potassium bichromate: 300-500 weight part;

Water: 4000-5500 weight part.

2. the method for preparing right 1 described sapphire infrared window cleaning agent is characterized in that following steps are arranged:

(1) accurately takes by weighing potassium bichromate according to the described weight part of claim 1;

(2) accurately measure deionized water 4000-5500 weight part, step (1) gained potassium bichromate is poured into wherein, the limit bevelling stirs, and all is dissolved in the water until potassium bichromate, has been mixed with potassium bichromate solution;

(3) the weighting profit requires 50% of 1 described concentrated acid sulphur gross weight, slowly pour in the described potassium bichromate solution of step (2), the limit bevelling evenly stirs with glass stick, by the time do not emit Bai Yanshi, after leaving standstill 30 minutes, again second half vitriol oil is added, repeat aforesaid operations, left standstill 120 minutes, and promptly got sapphire infrared window cleaning agent.