阅读说明：本技术 一种玻璃钢化熔盐活化用片剂及其制备方法 (Tablet for activating glass tempering molten salt and preparation method thereof ) 是由 刘建 李刚 于 2019-12-30 设计创作，主要内容包括：本发明公开了一种玻璃钢化熔盐活化用片剂,它包括磷酸钠、焦锑酸钾、二氧化硅、三氧化二铝及三氧化二锑；各组分的质量比为Na3PO4：KSbO6H6：SiO2：Al2O3：Sb2O3=100:1-5:0.01-0.1:0.01-0.05:0.1-0.5。所述组分均为分析纯或分析纯以上纯度级别的产品。片剂的制备方法是：1)按Na3PO4：KSbO6H6：SiO2：Al2O3：Sb2O3=100:1-5:0.01-0.1:0.01-0.05:0.1-0.5比称取原料并混合均匀；2)将步骤1)中混合均匀的物料放置于150℃的恒温干燥器中干燥3-5小时,然后筛分出25目-150目的物料备用。3)将步骤2)中25目-150目的物料通过压片机进行压片。4)检验包装。本发明的优点在于延长了玻璃钢化熔盐的使用寿命,降低了玻璃钢化的成本。(The invention discloses a tablet for activating glass tempering molten salt, which comprises sodium phosphate, potassium pyroantimonate, silicon dioxide, aluminum oxide and antimony trioxide; the mass ratio of each component is Na3PO 4: KSbO6H 6: SiO 2: al2O 3: sb2O3=100:1-5:0.01-0.1:0.01-0.05: 0.1-0.5. The components are analytically pure or products with purity levels higher than the analytically pure. The preparation method of the tablet comprises the following steps: 1) according to Na3PO 4: KSbO6H 6: SiO 2: al2O 3: weighing raw materials according to the ratio of Sb2O3=100:1-5:0.01-0.1:0.01-0.05:0.1-0.5, and uniformly mixing; 2) placing the uniformly mixed materials in the step 1) in a constant-temperature dryer at 150 ℃ for drying for 3-5 hours, and then screening out materials of 25-150 meshes for later use. 3) Tabletting the 25-150-mesh material obtained in the step 2) by a tabletting machine. 4) And (6) inspecting and packaging. The invention has the advantages of prolonging the service life of the glass toughening fused salt and reducing the glass toughening cost.)

1. A tablet for activating glass tempering molten salt is characterized by comprising sodium phosphate, potassium pyroantimonate, silicon dioxide, aluminum oxide and antimony trioxide; the mass ratio of each component is Na₃PO₄：KSbO₆H₆：SiO₂：Al₂O₃：Sb₂O₃=100 : 1-5 :0.01-0.1 : 0.01-0.05 : 0.1-0.5。

2. The tablet for activating glass tempering molten salt according to claim 1, wherein the sodium phosphate, potassium pyroantimonate, silicon dioxide, aluminum oxide and antimony trioxide are all products with purity grade of analytical purity or higher.

3. A preparation method of a tablet for activating glass tempering molten salt is characterized by comprising the following steps:

1) preparing materials: according to Na₃PO₄：KSbO₆H₆：SiO₂：Al₂O₃：Sb₂O₃Weighing raw materials in a ratio of 100:1-5:0.01-0.1:0.01-0.05:0.1-0.5, and uniformly mixing;

2) drying and screening: placing the uniformly mixed materials in the step 1) in a constant-temperature dryer at 150 ℃ for drying for 3-5 hours, then screening out materials with 25 meshes-150 meshes for later use, crushing the materials with the size smaller than 25 meshes and larger than 150 meshes, and drying and screening the crushed materials together with the next batch of materials again;

3) tabletting: tabletting the 25-150-mesh material obtained in the step 2) by a tabletting machine;

4) inspecting and packaging; and (4) performing sampling inspection on the finished product subjected to tabletting in the step 3), and packaging the finished product after the inspection is qualified.

Technical Field

The invention relates to the technical field of glass chemical toughening, in particular to a tablet for activating glass toughening molten salt and a preparation method thereof.

Background

The chemical tempering of glass can effectively improve the surface stress and the bending strength of the glass, and is one of effective strengthening methods for thin glass and products thereof. The chemical toughened glass has high strength, high heat stability, no deformation of surface, high chemical stability, proper cutting and no self explosion. Most importantly, the strength and toughness of thin and irregularly shaped glass articles, which often deform during physical tempering, can be enhanced.

The chemically toughened glass is prepared through the ion exchange between the ions in surface layer of glass and the ions in molten salt, and the volume change of the exchanged ions results in the formation of compressive stress and tensile stress in the glass surface and thus in raised glass strength. However, until now, no mature process and operation system has been established for chemical tempering of glass, especially the problem of initial passivation and inactivation of molten salt, which affects the quality and yield of chemical tempering of glass. In order to prevent deactivation of the molten salt, al powder and Si fine powder are added to the molten salt and SO2 is blown, and an activator such as SnO2 is added, but the effect is not preferable.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a tablet for activating glass tempering molten salt with excellent performance and a preparation method thereof.

The invention adopts the following technical scheme.

A tablet for activating glass tempering molten salt comprises sodium phosphate, potassium pyroantimonate, silicon dioxide, aluminum oxide and antimony trioxide; the mass ratio of each component is Na3PO 4: KSbO6H 6: SiO 2: al2O 3: sb2O3=100:1-5:0.01-0.1:0.01-0.05: 0.1-0.5.

The sodium phosphate, the potassium pyroantimonate, the silicon dioxide, the aluminum oxide and the antimony trioxide are all products with purity levels higher than or equal to analytical purity.

A preparation method of a tablet for activating glass tempering molten salt comprises the following steps:

1) preparing materials: according to Na3PO 4: KSbO6H 6: SiO 2: al2O 3: weighing raw materials according to the ratio of Sb2O3=100:1-5:0.01-0.1:0.01-0.05:0.1-0.5, and uniformly mixing;

2) drying and screening: placing the uniformly mixed materials in the step 1) in a constant-temperature dryer at 150 ℃ for drying for 3-5 hours, then screening out materials with 25 meshes-150 meshes for later use, crushing the materials with the size smaller than 25 meshes and larger than 150 meshes, and drying and screening the crushed materials together with the next batch of materials again;

3) tabletting: tabletting the 25-150-mesh material obtained in the step 2) by a tabletting machine;

4) inspecting and packaging; and (4) performing sampling inspection on the finished product subjected to tabletting in the step 3), and packaging the finished product after the inspection is qualified.

Compared with the prior art, the invention has the advantages of prolonging the service life of the glass toughening fused salt and reducing the glass toughening cost.

Detailed Description

The present invention will be described in further detail with reference to examples.