TWI251582B - Method for strengthening a thin planar glass having chiseled trenches - Google Patents
Method for strengthening a thin planar glass having chiseled trenches Download PDFInfo
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- TWI251582B TWI251582B TW92134337A TW92134337A TWI251582B TW I251582 B TWI251582 B TW I251582B TW 92134337 A TW92134337 A TW 92134337A TW 92134337 A TW92134337 A TW 92134337A TW I251582 B TWI251582 B TW I251582B
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- glass
- flat glass
- grooving
- temperature
- sheet
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000011521 glass Substances 0.000 title claims abstract description 34
- 238000005728 strengthening Methods 0.000 title claims abstract description 18
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 235000010333 potassium nitrate Nutrition 0.000 claims abstract description 22
- 239000005357 flat glass Substances 0.000 claims description 69
- 239000004323 potassium nitrate Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 241000446313 Lamella Species 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 238000005496 tempering Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 238000005530 etching Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000004111 Potassium silicate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- ISQINHMJILFLAQ-UHFFFAOYSA-N argon hydrofluoride Chemical compound F.[Ar] ISQINHMJILFLAQ-UHFFFAOYSA-N 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052913 potassium silicate Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- ZDHURYWHEBEGHO-UHFFFAOYSA-N potassiopotassium Chemical compound [K].[K] ZDHURYWHEBEGHO-UHFFFAOYSA-N 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Surface Treatment Of Glass (AREA)
Abstract
Description
1251582 五、發明說明（1) 【本發明所屬之技術領域】 本發明是有關一種面積大於1 6 0 0平方公分以上厚产不 均勻的平板玻璃的強化方法，尤其是有關一種厚度為ς超 過2mm的厚度不均勻的平板玻璃的強化方法。 【先前技藝】 眾所周知，玻璃的標準成分為NaW、CaO、6Si02，乃 為黏度权大的〉合貝，為非結晶質而呈均質性者，其係以將 砂或矽土與石灰、鹼水（potash )、蘇打（碳酸鈉）或氧 化鉛融熔而成，其中由矽土（ Si〇2)與鹼質（κ2〇、Na20 ) 4 製成之水玻璃為主要材料；其與鹼土（ CaO、MgO )相作用1 則為板玻璃；板玻璃與礬土（ ai2o3)作用，則成瓶玻璃； 水玻璃與侧酸（B2〇3 )及隸土相作用，則成耐熱及耐久玻 璃；水玻璃與氧化鉛或氧化鋇相作用，則成晶質玻璃，可 供作為光示玻璃、琺瑯及釉，若加著色劑，則為色玻璃， 加乳濁劑則為乳白玻璃。 玻璃可由熔融狀態不經過結晶而固化，其質硬、脆、 透明，因此，適用作為容器（尤其是飲料容器）、鏡子、 視窗的原料。而在電子工業發展的現代，舉凡電腦、手機 等等均需要以玻璃作為其視窗面板，故其重要性可謂與曰丨 俱長。 但是，在電子設施大為發展的結果，除了功能的增 加，輕、薄、短、小已成為電子業者努力追求的改良目 標，其對於玻璃面板的要求，亦復如是。故發展更輕、更1251582 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) [Technical Field] The present invention relates to a method for strengthening a flat glass having an area of more than 1 600 square centimeters or more, in particular, a thickness of ς more than 2 mm A method of strengthening the flat glass with uneven thickness. [Previous Skills] It is well known that the standard composition of glass is NaW, CaO, and 6Si02, which is a kind of viscous weight. It is homogenous and is homogenous. It is made of sand or bauxite with lime and alkaline water. (potash), soda (sodium carbonate) or lead oxide, in which water glass made of bauxite (Si〇2) and alkali (κ2〇, Na20) 4 is the main material; it is mixed with alkaline earth (CaO) , MgO) phase action 1 is plate glass; plate glass and alumina (ai2o3) action, then bottle glass; water glass and side acid (B2〇3) and the soil phase, it is heat resistant and durable glass; water When the glass interacts with lead oxide or yttria, it is crystallized glass, which can be used as a glass, enamel and glaze. If a coloring agent is added, it is a color glass, and an opacifier is a milky glass. The glass can be solidified without being crystallized in a molten state, and is hard, brittle, and transparent. Therefore, it is suitable as a raw material for containers (especially beverage containers), mirrors, and windows. In the modern development of the electronics industry, computers, mobile phones, etc. all need to use glass as their window panel, so its importance is very long. However, as a result of the development of electronic facilities, in addition to the increase in functions, light, thin, short, and small have become the improvement goals that electronics companies are striving for, and the requirements for glass panels are also the same. Therefore, the development is lighter and more
第5頁 1251582 五、發明說明（2) 薄、而厚度不 向，惟在發展 的乃是必需要 夠成為具有保 目前，厚 的平板玻璃的 溝後薄片型強 並需要仰賴進 於此種玻璃均 片型厚度不均 需仰賴進口， 中種種不可控 者產品的製程 在國外已 璃進行強化， 潰平板坡埤， 再於高溫的確 時），以“ >責純水’去除 均勻的玻璃 出更輕、更 同時維持玻 護功能的視 度為不超過 強化，均被 化平板玻璃 口’尤其是 有大量的需 的平板玻璃 導致不但損 制的因素， ，連帶導致 揭示的有關 而其大都以 而將平板玻 酸鉀溶液中 離子交換， 玻璃表面的 蚀刻溶液浸 故危險性高 貴，此皆為 容】 外已知的平 面板，也成為相關業者的努力方 薄的此類玻璃面板時，不可匆略 =面板的強度，以使玻璃面^能 窗。 2mm的鑿溝後薄片型厚度不均勻 相關業者視為其業務機密，故鑿 之售價均極為高昂，有很多國家 台灣’在液晶面板等的產品，對 求，惟因為本國内尚無馨溝後薄 之強化技術，此強化平板玻璃均 失了命多外匯，又因為進口過程 有造成供貨不正常，影響電子業 其產品的競爭力大受影響。 玻璃的強化方法均係針對平板玻 含有氩氟酸（HF )的蝕刻溶液浸 璃表面上予以侵蚀相當的深度， 〉貝相當長的時間（例如5小 然後對薄板狀玻璃予以加溫，浸 硝酸鉀，最後水洗乾燥。 潰平板玻璃的方法，其因為係採( ，亦會產生環保上的問題，而其 在國内無法採用的原因。 板玻璃的強化方法係先以含有腐 上述的以 用蝕刻溶液， ，備也非常昂 【本發明之内 有鑑於國Page 5 1251582 V. Description of invention (2) Thin, but not thick, but the development is necessary to become a strong, flat sheet glass, and the back sheet is strong and needs to rely on this glass. The uneven thickness of the uniform film depends on the import, and the process of the various uncontrollable products is strengthened in foreign countries, and the glass is reinforced, and the flat plate is sloping, and then at high temperature, the uniform glass is removed by "> The lightness of the glass-protecting function is not more than the reinforcement, and the flat glass mouth is especially used. In particular, there is a large amount of flat glass required, which not only causes damage, but also causes the disclosure to be related. Therefore, the ion exchange of the flat potassium silicate solution and the etching of the etching solution on the surface of the glass are dangerous. This is a known flat panel, and it has become a thin glass panel of this kind. Do not rush = the strength of the panel, so that the glass surface can be used. 2mm after the trenching, the thickness of the sheet is not uniform, the relevant business is considered as a business secret, so the price of the chisel is extremely high. Aung, there are many countries in Taiwan's products in LCD panels, etc., but because there is no reinforced plastic in the country, this strengthened flat glass has lost more foreign exchange, and because of the import process, it has caused supply. Abnormality, affecting the competitiveness of the electronics industry's products is greatly affected. The glass strengthening method is to etch a considerable depth on the glass surface of the etching solution containing argon fluoride (HF) on the flat glass, 〉 Bell for a long time (For example, 5 small and then warm the thin plate glass, immersed in potassium nitrate, and finally washed and dried. The method of smashing the flat glass, because of the system (also causes environmental problems, but it is not available in China) The strengthening method of the plate glass is first to use the etching solution containing the above-mentioned rot, and is also very expensive [in the present invention
第6頁Page 6
故有危險性高以及環保上 1251582 敍性的蝕刻溶液進行浸潰蝕刻 的問題。 又鑑於鑿溝後薄片型厚度 易，造成此強化玻璃售價高昂 順利與出貨的正常，發明人乃 試驗，終於而有本發明的產生 因此，本發明乃在提供_ 強彳b方法，以提供相關業者以 化肀板玻璃，藉由供應電子等 強化平板玻璃，可使電子等業 提高其產品的競爭力。 不均勻的平板玻璃強化的不 並影響電子製造業者製程的- 經很長時間的研究與多次的 〇 種鑿溝後薄片型平板玻璃之 較為低廉的鑿溝後薄片型強 業者較廉價的鑿溝後薄片型-者所製造出來的成本降低，_ 依照本發明的鑿溝後薄片型平板玻璃之強化方法，其 製择包括y列步驟：（1)製備鑿溝後薄片型平板玻璃；（2) 將鑿溝後薄片型平板玻璃逐漸加熱至使鑿溝後薄片型平板 玻璃變成柔軟的溫度；（3)於將鑿溝後薄片型平板玻璃徐 徐遂漸加熱’使之變成柔軟以前，製備高濃度的高溫硝酸 鉀（ΚΝ〇3)溶液；（4)將柔軟之鑿溝後薄片型平板玻璃浸潰 於上一步驟所得的高溫硝酸鉀溶液中；（5)從高溫硝酸卸 漆：浪中取出經柔軟並經浸潰的薄片型平板玻璃，而予以退 火，使鑿溝後薄片型平板玻璃的溫度又降低至常溫。 « 本發明的鑿溝後薄片型平板玻璃之強化方法中，合適 的鑿溝後薄片型平板玻璃的厚度係不超過2mm，較佳的是 在〇.3mm至2· Omm之間。 高濃度的硝酸鉀溶液係將塊狀或粉狀的高濃度硝酸鉀Therefore, there is a problem that the etching solution having high risk and environmental protection on the 1251582 is immersed and etched. In view of the fact that the thickness of the sheet after the grooving is easy, the price of the tempered glass is high and the shipment is normal, the inventor has experimented, and finally the invention has been produced. Therefore, the present invention provides a method for Providing related companies with enamel glass, and strengthening the flat glass by supplying electronics, etc., can enable electronics and other industries to enhance the competitiveness of their products. Uneven flat glass reinforcement does not affect the electronics manufacturer's process - after a long period of research and many times after the grooving of the thin-plate glass, the thin-chip type is stronger than the cheaper chisel The cost of the post-groove sheet type is reduced, _ the method for strengthening the slab-shaped sheet glass according to the present invention, the method comprising the steps of y-column: (1) preparing a slat-type sheet glass; 2) gradually heating the slab-shaped flat glass after the grooving to a temperature at which the sheet-shaped flat glass after the grooving is turned into a soft temperature; (3) preparing the slab-shaped flat glass after the grooving is gradually heated to make it soft. a high concentration of high temperature potassium nitrate (ΚΝ〇3) solution; (4) immersing the soft trenched sheet glass in the high temperature potassium nitrate solution obtained in the previous step; (5) removing the paint from high temperature nitric acid: wave The soft and impregnated sheet-type flat glass is taken out and annealed to lower the temperature of the sheet-shaped flat glass after the grooving to normal temperature. In the tempering method of the diced sheet-type flat glass of the present invention, the thickness of the slab-type flat glass after suitable grooving is not more than 2 mm, preferably between 〇3 mm and 2.0 mm. High concentration of potassium nitrate solution is a high concentration of potassium nitrate in bulk or powder form.
第7頁 I25l582 、發明說明⑷ 力σ熱$ 是“，、芝其熔點，並使溶液維持在熔點的溫度，而較佳的 崎賤钾溶液中可加入石夕土（ s丨1 i c a )作為添加劑。添 r . 薏，則為不超過整個溶液的百分之一。 本發明之實施方式】 - 製造本發明之鑿溝後薄片型平板玻璃之強化方法，其詳細 明g方法、其他目的與功效’則參照丁列依附圖所作之說 P :得到完全的了解： 後薄$參看第1圖與第2圖’其中’第1圖為本發明之馨溝 發明 裂平板破璃之強化方法的製程方塊圖；第2圖為本 $製程中溫度與時間的變化關係圖。 化方^第1圖所示’本發明的鑾溝後薄片型平板玻璃之強看 (2)將m包括有（1)製備鑿溝後薄片型平板玻璃之步驟1 ; 古二 溝後薄片型平板玻璃逐漸預熱的步驟2 ;(3 )製備 :=度硝酸鉀溶液步驟3 ;(4)浸潰鑿溝後薄片型平板玻璃 於琐酸斜溶液令之步驟4;以及，⑴將浸潰的t溝後 型平板玻璃退火之步驟5。其中，合適的鑿溝後薄片型平 板玻璃的厚度為不超過3mm，較佳的為〇 . 3mm〜2 . 之 間。馨=片型平板玻璃的製作乃為目前的習知技術， 在此不予兔述。而|彡查德壤y *，1 ,^ ^ . #後/專片型平板玻璃是利用蝕刻法或 喷砂法’於其表面形成凹槽、 ^ ^ α/ί m ^ ^ 凹溝或小凹孔，以適合多種蠢 不同的用途。鑿溝的深度為 夕種餐 而以π招πτ、 个雙過千板玻璃厚度的二分之 一，而以不超過平板玻璃厚度 刀之 槽、凹溝或小凹孔的大小、密刀之為合適，帷凹 π诂磕搞的不n 在度以及其排列的方式，均可Page 7 I25l582, invention description (4) Force σ heat $ is ",, the melting point of 芝, and the solution is maintained at the melting point of the temperature, and the best rugged potassium solution can be added to Shi Xi soil ( s丨1 ica ) as The additive is not more than one percent of the entire solution. The embodiment of the present invention - the method for strengthening the slab-shaped flat glass of the present invention, which is detailed, g, and other purposes "Efficacy" refers to Ding Lie's statement. P: Get a complete understanding: After thin $ see Figure 1 and Figure 2, where 'the first picture is the strengthening method of the invention Process block diagram; Fig. 2 is a diagram showing the relationship between temperature and time in the $process. The first side of the process of the invention is shown in Fig. 1 'The strong view of the flat sheet glass of the trench after the invention (2) includes m ( 1) Step 1 of preparing sheet-type flat glass after grooving; Step 2 of gradually preheating the sheet glass after Gu Ergou; (3) Preparation: Step 3 of potassium nitrate solution; (4) After dipping and grooving The sheet-type flat glass is subjected to the step 4 in the oblique acid solution; and, (1) after the d groove is dipped Step 5 of annealing the flat glass, wherein the thickness of the sheet glass after suitable grooving is not more than 3 mm, preferably 〇. 3 mm 〜2. Between 馨 = sheet type flat glass is currently produced The conventional technique is not described here. And | 彡查德土 y *,1 ,^ ^ . #后/Special type flat glass is formed by etching or sand blasting on its surface, ^ ^ α / ί m ^ ^ Grooves or small recesses to suit a variety of stupid uses. The depth of the grooving is 1/2 πτ, one-half the thickness of a double-thick glass, The size of the groove, the groove or the small concave hole of the knife which is not more than the thickness of the flat glass, and the size of the knives are suitable, and the 诂磕 诂磕 诂磕 诂磕 以及 以及 以及 以及 以及
依玻璃板的不同用途作不同的士 1 J U妁凋整與設計。於鑿溝後薄片According to the different uses of the glass plate, different taxis 1 J U妁 are neat and designed. After grooving
$ 8頁 I2515S2_ 五、發明說明（5) 型平板玻璃表面利用#刻法或喷砂法形成凹槽、凹溝或小 凹孔的方法亦為習知技術，在此不予贅述。 再請參照苐1圖與第2圖，薄片型鑿溝後平板玻璃取得 後，乃將鑿溝後薄片塑平板玻璃置於加熱室中，從室溫~ (2 0 °C左右）對鑿溝後薄片型平板玻璃徐徐加熱至使鑿溝 後薄片型平板玻璃變柔軟的溫度；鑿溝後薄片型平板玻璃 的變軟溫度為3 5 0 t ，而從室溫加熱至3 5 〇 X：,在發明的步 驟中，需要以3〜3 · 5小時來完成。在將薄片型鑿溝後平板' 玻璃徐徐加熱使之變成柔軟以前，即製備高濃度的高溫硝-酸鉀（KN〇3)溶液；硝酸鉀（KN03，Potassium Nitrate )鲁 為無色或白色透明晶體或粉末，比重2 · 1 〇 6 2，熔點 337 °C，分解於400 °C左右，溶於水，稍溶於乙醇。本發明 的實施方式中，係取濃度高達98%以上的塊狀或粉末狀硝 酸鉀，將之加熱至熔點以上，使之成為溶液，並維持其於 溶液的狀態。而較佳的是，硝酸鉀溶液中，可加入矽土 (s i 1 i c a )等作為柔和劑。柔和劑的量，則為不超過整個 溶液的百分之一。 鑿溝後薄片塑平板玻璃被徐徐加熱至變成柔軟後，即 將鑿溝後薄片型平板玻璃浸潰高濃度的高溫硝酸鉀 (kno3)溶液中。 罐 如第3圖所示，鑿溝後薄片型平板玻璃1 0若經過蝕刻 或喷砂等步驟後，乃可於其表面形成凹槽、凹溝或凹孔 101、102、1〇3......，再經過預熱而使之變成柔軟後，其 表面的分子結構更進一步被弱化，加以其變成柔軟後，包$8 I2515S2_ V. INSTRUCTIONS (5) The method of forming a groove, a groove or a small hole by using the #刻法 or sandblasting method is also a conventional technique, and will not be described herein. Please refer to Fig. 1 and Fig. 2, after the sheet glass is obtained after the sheet-type trenching, the glass sheet glass after the trenching is placed in the heating chamber, and the trench is cut from room temperature to (about 20 °C). The sheet-shaped flat glass is slowly heated to a temperature at which the sheet-shaped flat glass is softened after the grooving; the softening temperature of the sheet-type flat glass after the grooving is 350 ton, and is heated from room temperature to 3 5 〇X:, In the step of the invention, it takes 3 to 3 · 5 hours to complete. High-concentration high-temperature potassium nitrate (KN〇3) solution is prepared before the sheet-type screed is heated by the flat glass, and potassium nitrate (KN03, Potassium Nitrate) is colorless or white transparent crystal. Or powder, specific gravity 2 · 1 〇6 2, melting point 337 °C, decomposition at about 400 °C, soluble in water, slightly soluble in ethanol. In the embodiment of the present invention, a bulk or powdered potassium nitrate having a concentration of up to 98% or more is taken, heated to a temperature higher than the melting point to make it a solution, and maintained in a state of a solution. Preferably, in the potassium nitrate solution, alumina (s i 1 i c a ) or the like may be added as a softening agent. The amount of softener is not more than one percent of the entire solution. After the grooving, the sheet-shaped flat glass is slowly heated to become soft, and the slab-shaped flat glass is immersed in a high-concentration high-temperature potassium nitrate (kno3) solution. As shown in Fig. 3, after the grooving, the sheet-type flat glass 10 can be formed with grooves, grooves or recesses 101, 102, 1 〇3 on the surface thereof after etching or sand blasting. ...., after preheating to make it soft, the molecular structure of its surface is further weakened, and after it becomes soft, it is packaged.
第9頁 1251582 五、發明說明（6) --- 括凹槽、凹溝或凹孔的表面乃不平滑。其浸潰於度的 高溫石肖酸If溶液後’溶液中的分子75侵入鑿溝後薄 板玻璃表面1玻璃分子緊密結合’在此浸漬 的高 溫石肖酸鉀製程，其所需時間可為5〜10小時，而其溫度維. 持在使硝酸鉀熔解的狀態，亦即，3 5 〇 左# 鑿溝後薄片型平板玻璃1 0經過浸清认& ° 酸卸（ΚΝ03)溶液後，其表面乃形成緊=濃度的高溫石肖 11、1 2，此表面形成緊密結合硝酸鉀層m合的硝酸鉀層 即得經過強化的 片型平板玻璃1 0予以退X ’使其溫度從：:2:鑿溝ϋ (3 5 0 °C左右）降至室溫（2 〇它左右）为I鉀溶液的溫度 間 可為1〜2小Page 9 1251582 V. INSTRUCTIONS (6) --- The surface of the groove, groove or recess is not smooth. After the impregnation of the high-temperature sulphuric acid If solution, the molecules in the solution 75 invade the grooving, and the glass surface of the thin plate glass is tightly bonded to the immersed high-temperature potassium potassium silicate process, which can take 5 times. ~10 hours, and its temperature dimension. Holds the state in which potassium nitrate is melted, that is, after 3 5 〇 left # 凿 后 薄片 薄片 薄片 薄片 薄片 薄片 薄片 认 认 amp amp amp amp amp amp amp amp amp amp amp amp The surface is formed into a compact = concentration of high temperature stone shovel 11, 12, which forms a layer of potassium nitrate that is tightly bonded to the potassium nitrate layer, ie, the strengthened sheet-type flat glass 10 is repelled by X' to make its temperature from: :2: The grooving ϋ (about 3 50 °C) is reduced to room temperature (2 〇 around it). The temperature of the I potassium solution can be 1~2 small.
薄片型平板玻璃。而其退火降溫的製程1 時〇 T 本發明的製造方法所得的数、类銘域 強度較之-般未予強化的；型平板玻璃，其 為從來所無，*新穎性與|紫=為上好，其強化方法 件，懇請賜准專利，實為U利用性，&於專利法的要Sheet type flat glass. However, the process of annealing and cooling is 1 〇T The number of the invention and the strength of the category-like field are not strengthened as compared with the conventional method; the flat glass has never been, * novelty and | purple = Good, its method of strengthening, please grant patents, it is U Utilities, &
第10頁 12515JS2 圖式簡單說明 第1圖為本發明之鑿溝後薄片型平板玻璃之強化方法 的製程方塊圖； 第2圖為本發明之製程中溫度與時間的變化關係圖。 第3圖為本發明之鑿溝後薄片型平板玻璃之強化方法 中，浸潰步驟後的鑿溝後薄片型平板玻璃構造放大示意 圖0 圖式中元件名稱與符號對照】 1 0 :鑿溝後薄片型平板玻璃 1 1、1 2 :硝酸鉀層 101 ： 凹 槽 102 ： 凹 溝 103 ： 凹 孔Page 10 12515JS2 Brief Description of the Drawings Fig. 1 is a block diagram showing the process of strengthening the slab-type flat glass of the present invention; Fig. 2 is a diagram showing the relationship between temperature and time in the process of the present invention. Fig. 3 is a schematic view showing the structure of the slab-type flat glass after the immersing step in the tempering method of the slab-shaped flat glass according to the present invention. Sheet-type flat glass 1 1 , 1 2 : potassium nitrate layer 101 : groove 102 : groove 103 : recessed hole
第11頁Page 11
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