CN1305964A - Process for preparing toughened color glass - Google Patents

Abstract

A process for preparing the toughened colour glass features that in the conventional production line of toughened glass, the colouring paint is sprayed on the surface of glass which is just left from heat treating furnace and is going to come in toughening chamber. Said colouring paint is prepared from SnCl4, SbCl3, copper oxide, cobalt oxide, reducer and adhesive. Its advantages are more gay colours, and not decolouring.

Description

A kind of manufacture method of toughened color glass

The present invention relates to a kind of manufacture method of toughened color glass.

What as everyone knows, wind shelves door and window adopted before and after the automobile is a kind of toughened glass.Its intensity height outside under the lamination stress, only produces the small shreds that does not have sharp comer, so claim " shatter proof glass " again when breaking.And colored windshield adopts colored glass to do former often, by obtaining after " physical toughened ".Colored in the market glass cost height, and have only orchid, tea, several colors such as green.This has just limited the range of choice of windshield, especially needs the glass of transition color, such as before the automobile of needs band transition color photo-shield strip during the wind shelves, then can't satisfy especially.Certainly, also has and adopt the pad pasting way, but pad pasting is to be bonded with the toughened glass surface after all, be afraid of moistly that will fade through Exposure to Sunlight time one length, foaming comes off.Pad pasting also has the character of non-setting adhesive, wherein contains the organism of benzene, through sight irradiation meeting radiation objectionable impurities, diminishes passenger's health in the car.Moreover pad pasting does not have the effect of colour transition yet.Chinese patent 89105932.6 provides a kind of " glass colour-changed due to gradual light-changing and manufacture method thereof ", can reach colored gradual change, and it relates to adopts thermal treatment and reduction method to process, and can produce color gradient and change.But it must have a temperature to be the special-purpose heat treatment furnace of certain graded, also will adopt H ₂Or CO does reducing medium and controls its flow.The technology more complicated.Therefore, it is specially adapted to do the glassy product of ophthalmic lens and so on, for large-area tempered glass of automobile, obviously is inapplicable.

The object of the present invention is to provide a kind of original toughened glass production line that mainly utilizes, produce the method for toughened color glass.This toughened color glass can not fade, come off, and color and luster is bright-coloured all the time, and can on glassly produce effects two or more and band transition color at same.

The objective of the invention is to reach like this, promptly on the toughened glass technology basis of routine, be about to enter on the air-cooled rapidly glass surface in tempering chamber just leaving heat treatment furnace with the dyeing paint spay-coating for preparing by a certain percentage.And, constituted dyeing coating based on metal salt compound by the tin tetrachloride that accounts for coating total amount 30-50% causes, dissolving accounts for coating total amount 50-25% butter of antimony, cupric oxide or cobalt oxide.The promotor that accounts for 2.5-5% in this dyeing coating is selected rouge and powder or ferrous sulfate for use; The reductive agent that accounts for 5-10% is selected dehydrated alcohol, zinc powder or tin protochloride for use; The weighting agent that accounts for 2.5-10% is selected talcum powder, chamotte or zirconium dioxide for use; The tackiness agent that accounts for 2.5-5% is selected dextrin, turps or gum arabic for use.

Accompanying drawing is seen in technical process of the present invention.

The invention has the advantages that the white glass of selecting normal transparent for use does former, tempering dyes on original production line.The raw material sources of dyeing coating are convenient, cheap, and are nontoxic and pollute for a short time, thereby cost reduces greatly.Metal ion in the coating salt penetrates into surface layer of glass by diffusion, makes glass dye required color.Owing to be to infiltrate glass surface, use durable in usely, needn't worry to fade, come off, it is bright-coloured lucid and lively that color and luster can keep all the time.Tempered glass of automobile constructed in accordance can be multiple color, the depth is different.Especially can come a effect that produces on glass very easily with transition color.When making multiple dyeing coating in different ratios, then can on same transparent glass, dye two or more colors.

The embodiment of the invention 1 is applicable to the preceding windshield of automobile, requires to have the shaded effect of transition color, and fluorescence transparency is preferably arranged.At this moment, the configuration dye is selected following prescription for use:

Tin tetrachloride 40%

Butter of antimony 40%

Rouge and powder or ferrous sulfate 5%

Dehydrated alcohol 9%

Oxide powder and zinc 1%

Talcum powder 2.5%

Dextrin or turps 2.5%

Its manufacturing process is as follows: first toughened glass manufacturing process routinely, after chip select, the glass cutting of thickness 5-8 millimeter is become desired size, and through edging, clean after drying, wait for the furnace treatment reason.Then, metal-salt in the above-mentioned prescription and Inorganic Chemicals are prepared in proportion, be positioned in the container, pour in the spray gun box stand-by after treating to dissolve fully through water-bath heat 80-100 ℃, 10-15 minute.The original sheet glass that above-mentioned clean dry is good enters heat treatment furnace by the lifting of stainless steel clip, and thermal treatment temp 680-720 ℃, time 2.5-3 minute.When after original sheet glass is come out of the stove, not sending into the tempering chamber as yet, the inorganic chemical industry dyeing raw material for preparing is sprayed on the glass surface within second at 5-15 with spray gun.Then, glass is sent into the tempering chamber.In the tempering chamber, air is blown on the glass surface about about 2 minutes of time with gas blower by nozzle as medium.At last, the toughened glass after being stained with fire, by taking out the tempering chamber, through cleaning, packing is dispatched from the factory after the assay was approved, Here it is the needed indigo preceding windshield of present embodiment with transition color photo-shield strip.Current windshield size, thickness hour, the desirable lower limit of thermal treatment temp; When current windshield size, thickness are big, but the thermal treatment temp capping.When the windshield profile requires certain radian is arranged, then can be after entering the tempering chamber, elder generation is by the die set matched moulds die mould of both sides, and then a plurality of apertures blowing quick cooling by opening on the die set.Distance etc. between the cooling wind pressure in the tempering chamber, wind-warm syndrome and nozzle and glass surface, toughened glass technology that all can be routinely is stained with fiery degree and is then gone to work out by the requirement of windshield.The desirable blast 150Mpa of present embodiment, and the width and the size of the colour transition band of windshield then can be worked out as required.

The embodiment of the invention 2 is applicable to the tempering door and window of automobile.Do not need to have the effect of transition color, but require the uniformity coefficient of solid color to get well.At this moment, the preparation dye is selected following prescription for use:

Tin tetrachloride 50%

Butter of antimony 25%

Rouge and powder or ferrous sulfate 5%

Dehydrated alcohol 5%

Zirconium dioxide 10%

Gum arabic 5%

The present embodiment manufacturing process is with embodiment 1.Because main salt is identical, be the ratio difference, thereby final tempering glass colour is with embodiment 1.But because it is big to play the zirconium dioxide composition of dissemination, the homodisperse effect is remarkable, and what finally obtain is the toughened glass door and window with single even purple blue.It should be noted that in the present embodiment the metal salt compound total amount accounts for 75% of prescription total amount, also little if its total amount accounts for the ratio of prescription total amount, the purple blue toughened glass that then obtains, its color relation can be shallow partially.Otherwise, then can be dark partially.

The embodiment of the invention 3 is the example of different colours.The dye prescription of preparation this moment is as follows:

Tin tetrachloride 40%

Cupric oxide 30%

Ferrous sulfate 5%

Dehydrated alcohol 10%

Chamotte 10%

Turps 5%

The present embodiment manufacturing process is with embodiment 1.Because main salt changes, the dye of the rubescent look of virgin state, at high temperature the ion in its coloring ion and the glass exchanges, and is diffused into and goes to make glass staining in the surface layer of glass, finally produces greeny toughened glass.

The embodiment of the invention 4 is applicable to outer decoration, the decoration of buildings for being red olivaceous toughened glass.Its dye prescription is as follows:

Tin tetrachloride 30%

Cobalt oxide 50%

Rouge and powder 2.5%

Dehydrated alcohol 9%

Tin protochloride 1%

Talcum powder 5%

Dextrin 2.5%

The present embodiment manufacturing process is also with embodiment 1, because the purposes difference, the cooling wind pressure in the tempering chamber is got 100Mpa and got final product herein.Present embodiment is because the variation of main salt, the blue darkly look of the dye that makes, spray on the glass surface that from thermal treatment, comes out to be lower than softening temperature after, after the metal ion exchanged of complexity, reduction, original sheet glass is air-cooled rapidly, has formed at last to be red olivaceous tempering ambetti.

Claims (1)

1, a kind of manufacture method of toughened color glass, comprise: chip select, cutting, edging, washing, drying, thermal treatment, air-cooled rapidly is characterized in that: be about to enter on the air-cooled rapidly glass surface in tempering chamber just leaving heat treatment furnace with the dyeing paint spay-coating for preparing by a certain percentage.The dyeing formulation for coating material of being prepared is as follows:

Tin tetrachloride 30-50%

Butter of antimony, cupric oxide or cobalt oxide 50-25%

Rouge and powder or ferrous sulfate 2.5-5%

Ethanol, zinc powder or tin protochloride 5-10%

Talcum, chamotte or zirconium dioxide 2.5-10%

Dextrin, turps or gum arabic 2.5-5%

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