WO2017193230A1 - 一种真空玻璃及其加工方法 - Google Patents

一种真空玻璃及其加工方法 Download PDF

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WO2017193230A1
WO2017193230A1 PCT/CN2016/000555 CN2016000555W WO2017193230A1 WO 2017193230 A1 WO2017193230 A1 WO 2017193230A1 CN 2016000555 W CN2016000555 W CN 2016000555W WO 2017193230 A1 WO2017193230 A1 WO 2017193230A1
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glass
flat glass
vacuum
gap
sheets
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PCT/CN2016/000555
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French (fr)
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朱盛菁
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朱盛菁
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/24—Making hollow glass sheets or bricks
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/24—Making hollow glass sheets or bricks
    • C03B23/245—Hollow glass sheets

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  • the invention relates to the field of heat insulating glass and its manufacturing technology, in particular to a vacuum glass and a processing method thereof.
  • the vacuum glass is to enclose two sheets of flat glass, draw the gap into a vacuum and seal the vent hole.
  • the gap between the two sheets of glass is 0.1-10mm, and at least one of the two sheets of vacuum glass is generally Low-emissivity glass, so that the heat lost by conduction, convection and radiation of vacuum glass is minimized, and its working principle is the same as that of glass thermos.
  • Vacuum glass is the result of combination of various disciplines, multiple technologies and various processes in glass technology and materials science, vacuum technology, physical measurement technology, industrial automation and building science. Its main technical effects are: energy saving, heat insulation and sound insulation.
  • the object of the present invention is to provide a vacuum glass and a processing method thereof, which mainly solve the technical problems existing in the prior art described above, and the product of the invention not only has energy saving, heat insulation, sound insulation, but also has It has the advantages of good vacuum and long service life.
  • the present invention is implemented as follows:
  • a vacuum glass comprising two sheets of flat glass arranged in parallel, wherein two sheets of flat glass have a gap for vacuuming; and the two sheets of flat glass are sealed by high temperature melting.
  • the vacuum glass is characterized in that the flat glass is borosilicate glass.
  • the vacuum glass is characterized in that: a plurality of support portions are arranged between the two sheets of flat glass.
  • the vacuum glass is characterized in that the support portion is pre-disposed on one of the flat glass sheets by a dot machine or a screen printing or calendering method.
  • the vacuum glass is characterized in that the support portion is made of an inorganic material.
  • the vacuum glass is characterized in that the support portion is made of glass powder or quartz powder or ceramic material.
  • the two flat glass plates are arranged in parallel to ensure that the support portion is located between the two flat glass plates, and the position outside the support portion is kept at a gap;
  • a closed cavity is arranged between the two flat glass sheets, and the getter material is sealed in the cavity; when the two flat glass are welded on the four sides, the gap between the closed cavity and the two flat glass is opened.
  • the method for manufacturing a vacuum glass according to the invention is characterized in that the opening method is laser light-on.
  • the present invention has the following technical effects:
  • the two flat glass sheets are edge-sealed by high-temperature melting, and therefore, the edge sealing material and the flat glass material are the same material, and they have the same and similar expansion ratio and shrinkage ratio, regardless of Whether it is in the process of processing or in the process of use, it is not easy to leak.
  • the ambient temperature of the gap between the two sheets of flat glass during the melting process is ensured to be above 380 ° C, and between the flat glass
  • the gap reaches or approaches the vacuum state, and the operation is simpler than the existing operation step of drawing the vacuum environment through the reserved suction port, and the defect that the suction port becomes the air leakage point is avoided.
  • the product of the invention not only has the advantages of energy saving, heat insulation and sound insulation, but also has the advantages of good vacuum and long service life.
  • the present invention discloses a preferred processing method, which has no solder, integration, simple production process, large-scale production, high yield, low production cost, strong product vacuum maintenance, long-term weather resistance, and no temperature limitation. Long life and other advantages.
  • Fig. 1 is a schematic view showing the structure of a first embodiment of the present invention.
  • Embodiment 1 (Better Embodiment of the Invention)
  • FIG. 1 is a schematic structural view of a vacuum glass according to an embodiment. As shown in the figure: it comprises two sheets of flat glass 11 and 13 arranged in parallel, and a gap 13 for vacuuming between the two sheets of flat glass 11 and 12; the two sheets of flat glass 11 and 12 are sealed by high-temperature melting.
  • the flat glass is preferably a borosilicate glass, and a nano-calcium glass may also be used. Among them, borosilicate glass has better compactness and is more suitable for maintaining vacuum for a long time.
  • the preferred processing method of the vacuum glass of Embodiment 1 includes the following steps:
  • the two sheets of flat glass 11, 12 are arranged in parallel, to ensure that the support portion 2 is located between the two sheets of flat glass 11, 12, the position outside the support portion 2 to maintain the gap 13;
  • the two flat glass sheets 11 and 12 are directly melted and connected to the edge by high temperature (usually 380 ° C or higher), and the ambient temperature of the gap between the two flat glass sheets during the melting process is ensured when the last edge is closed. Above 380 ° C, and the gap between the flat glass is at or near vacuum.
  • the present invention also includes the following steps:
  • a closed cavity 31 is disposed between the two flat glass plates 11, 12, and the getter material 32 is enclosed in the cavity 31; when the two flat plates are welded on the four sides, the closed cavity 31 and the two pieces are closed.
  • the gap 13 between the flat glass is opened.
  • the opening manner can be laser light-on.
  • the support portion 2 can be pre-disposed on one of the flat glass sheets by a dot machine or a screen printing or calendering method.
  • the support portion 2 is made of an inorganic material (such as glass powder or quartz powder or ceramic material), and these preferred inorganic material support points have the advantages of small thermal conductivity.
  • the preferred processing method disclosed in the first embodiment has the advantages of no solder, integration, simple production process, large-scale production, high yield, low production cost, strong product vacuum maintenance, long-term weather resistance, and no temperature limitation. Long life and other advantages.
  • Embodiment 2 (a simple embodiment of the present invention for processing a vacuum glass having a small specification)
  • the method for producing vacuum glass of embodiment 2 comprising the steps of:
  • the flat glass is preferably borosilicate glass, and nano-calcium glass may also be used.
  • Embodiment 2 can be used for processing vacuum glass of a smaller specification, and such a vacuum glass having a smaller specification can be disposed without a support portion.
  • the method for producing vacuum glass of embodiment 3, comprising the steps of:
  • the flat glass is preferably borosilicate glass, and nano-calcium glass may also be used.
  • the two sides of the flat glass are directly melted by high temperature and connected to the edge seal, and a hole for vacuuming is reserved, and the gap is evacuated through the hole and the gap between the flat glass is brought to or near a vacuum state.
  • Example 3 is suitable for processing vacuum glass on a small scale.
  • At least one of the flat glass species in the present invention may be a flat glass having a low radiation film.
  • the thickness of the two sheets of flat glass constituting the vacuum glass of the present invention may be uniform or inconsistent.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

一种真空玻璃及其加工方法。该真空玻璃包括两片平行设置的平板玻璃（11、12），两片平板玻璃之间具有供抽真空的间隙（13）；其特征在于：两片平板玻璃四周通过高温熔烧进行封边。在加工过程中，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。

Description

一种真空玻璃及其加工方法 技术领域
本发明涉及保温玻璃及其制造技术领域，特别是一种真空玻璃及其加工方法。
背景技术
真空玻璃是将两片平板玻璃四周封闭起来，将其间隙抽成真空并密封排气孔，两片平板玻璃之间的间隙为0.1-10mm，真空玻璃的两片平板玻璃中一般至少有一片是低辐射玻璃，这样就将通过真空玻璃的传导、对流和辐射方式散失的热降到最低，其工作原理与玻璃保温瓶的保温隔热原理相同。真空玻璃是玻璃工艺与材料科学、真空技术、物理测量技术、工业自动化及建筑科学等，多种学科、多种技术、多种工艺结合的硕果。其主要技术效果是：节能、隔热、隔音。
现有的真空玻璃在加工过程中，两片平板玻璃四周通常使用焊料(如：低熔点玻璃)进行封边。在制造和使用过程中，由于平板玻璃材质与焊料的膨胀率和收缩率不能完全一致，因此常常因环境温度变化容易产生漏气的情况，影响了真空玻璃的使用效果和使用寿命。
现有的真空玻璃在加工过程中，需要预留抽气口以将两片平板玻璃之间的间隙抽吸真空，不但加工麻烦，而且预留的抽气口容易影响真空玻璃的外观，甚至容易成为漏气点，影响产品质量。
发明内容
本发明的目的在于提供一种真空玻璃及其加工方法，主要解决上述现有技术所存在的技术问题，本发明产品不但具有节能、隔热、隔音，而且还具 有真空度好、使用寿命长等优点。
为解决上述技术问题，本发明是这样实现的：
一种真空玻璃，它包括两片平行设置的平板玻璃，两片平板玻璃之间具有供抽真空的间隙；其特征在于：两片平板玻璃四周通过高温熔烧进行封边。
所述的真空玻璃，其特征在于：所述的平板玻璃为高硼硅玻璃。
所述的真空玻璃，其特征在于：所述的两片平板玻璃之间布置有若干支撑部。
所述的真空玻璃，其特征在于：所述的支撑部通过布点机或丝网印刷或压延方式在其中一片平板玻璃上预先布设。
所述的真空玻璃，其特征在于：所述的支撑部采用无机材料制成。
所述的真空玻璃，其特征在于：所述的支撑部采用玻璃粉或石英粉或陶瓷材料制成。
一种真空玻璃的制造方法，用于制造如上所述的真空玻璃，其特征在于：它包括如下步骤：
A、选用两片平板玻璃；
B、在其中一片平板玻璃上布设支撑部；
C、将两片平板玻璃平行设置，确保支撑部位于两片平板玻璃之间，支撑部外的位置保持间隙；
D、将两片平板玻璃四边通过高温直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。
所述的真空玻璃的制造方法，其特征在于：它包如下步骤：
在两片平板玻璃之间设置一封闭的腔体，该腔体内封设吸气物质；当两片平板玻璃四边熔接封边后，将封闭的腔体与两片平板玻璃之间的间隙打通。
所述的真空玻璃的制造方法，其特征在于：所述的打通方式为激光打通。
一种真空玻璃的制造方法，用于制造如上所述的真空玻璃，其特征在于：它包括如下步骤：
A、选用两片平板玻璃；
B、将两片平板玻璃平行设置，确保两片平板玻璃之间保持间隙；
C、将两片平板玻璃四边通过高温直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。
藉由上述技术方案，本发明具有如下技术效果：
1、本发明的真空玻璃中，两片平板玻璃四周通过高温熔烧进行封边，因此，其封边材料与平板玻璃材料为相同的材料，它们具有相同和相似的膨胀率和收缩率，无论是在加工过程，还是使用过程中，都不容易出现漏气的情况。
2、本发明真空玻璃的加工过程中，在封闭两片平板玻璃之间最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态，与现有通过预留抽气口进行抽吸真空环境的操作步骤相比，不但操作更加简单，而且避免了抽气口成为漏气点的缺陷。
3、本发明产品不但具有节能、隔热、隔音，而且还具有真空度好、使用寿命长等优点。
4、本发明公开了优选加工方法，具有无焊料、一体化、生产工艺简单、可大规模生产、成品率高、生产成本低、产品真空度维持力强、耐候性能良久、无温度使用范围限制、使用寿命长等优点。
附图说明
图1是本发明实施例1的结构示意图。
具体实施方式
以下结合实施例来进一步介绍本发明。
实施例1(本发明的较佳实施例)
请参阅图1，它是实施例一种真空玻璃的结构示意图。如图所示：它包括两片平行设置的平板玻璃11、13，两片平板玻璃11、12之间具有供抽真空的间隙13；两片平板玻璃11、12四周通过高温熔烧进行封边。本实施例1中，所述的平板玻璃优选为高硼硅玻璃，也可以选用纳钙玻璃。其中，高硼硅玻璃的致密性更好，更适合长期维持真空度。
实施例1的真空玻璃的优选加工方法，包括如下步骤：
A、选用两片平板玻璃11、12；
B、在其中一片平板玻璃上布设支撑部2；
C、将两片平板玻璃11、12平行设置，确保支撑部2位于两片平板玻璃11、12之间，支撑部2外的位置保持间隙13；
D、将两片平板玻璃11、12四边通过高温(通常是380℃以上)直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。
另外，本发明还包如下步骤：
在两片平板玻璃11、12之间设置一封闭的腔体31，该腔体31内封设吸气物质32；当两片平板玻璃四边熔接封边后，将封闭的腔体31与两片平板玻璃之间的间隙13打通。所述的打通方式可以为激光打通。
实施例1中，该支撑部2可以通过布点机或丝网印刷或压延方式在其中一片平板玻璃上预先布设。所述的支撑部2采用无机材料(如：玻璃粉或石英粉或陶瓷材料)制成，这些作为优选的无机材料支撑点均具有导热系数小的优点。
该实施例1公开的优选加工方法，具有无焊料、一体化、生产工艺简单、可大规模生产、成品率高、生产成本低、产品真空度维持力强、耐候性能良久、无温度使用范围限制、使用寿命长等优点。
实施例2(本发明的简单实施方式，用于加工规格较小的真空玻璃)
实施例2的真空玻璃的制造方法，包括如下步骤：
A、选用两片平板玻璃；本实施例2中，所述的平板玻璃优选为高硼硅玻璃，也可以选用纳钙玻璃。
B、将两片平板玻璃平行设置，确保两片平板玻璃之间保持间隙；
C、将两片平板玻璃四边通过高温直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。
与本发明实施例1相比，实施例2可用于加工规格较小的真空玻璃，这种规格较小的真空玻璃可以不用设置支撑部。
实施例3
实施例3的真空玻璃的制造方法，包括如下步骤：
A、选用两片平板玻璃；本实施例3中，所述的平板玻璃优选为高硼硅玻璃，也可以选用纳钙玻璃。
B、将两片平板玻璃平行设置，确保两片平板玻璃之间保持间隙；
C、将两片平板玻璃四边通过高温直接熔烧并连接封边，同时可预留用于抽真空的孔，通过该孔对间隙抽真空并使平板玻璃之间的间隙达到或接近真空状态。
实施例3适用于小规模加工真空玻璃。
另外，作为可选方式，本发明中的平板玻璃种的至少一片可以选用具有低辐射膜的平板玻璃。
再者，本发明构成真空玻璃的两片平板玻璃的厚度可以是一致的，也可以是不一致的。
综上所述仅为本发明的较佳实施例而已，并非用来限定本发明的实施范围。即凡依本发明申请专利范围的内容所作的等效变化与修饰，都应为本发明的技术范畴。

Claims (10)

  1. 一种真空玻璃，它包括两片平行设置的平板玻璃，两片平板玻璃之间具有供抽真空的间隙；其特征在于：两片平板玻璃四周通过高温熔烧进行封边。
  2. 根据权利要求1所述的真空玻璃，其特征在于：所述的平板玻璃为高硼硅玻璃。
  3. 根据权利要求1所述的真空玻璃，其特征在于：所述的两片平板玻璃之间布置有若干支撑部。
  4. 根据权利要求3所述的真空玻璃，其特征在于：所述的支撑部通过布点机或丝网印刷或压延方式在其中一片平板玻璃上预先布设。
  5. 根据权利要求1所述的真空玻璃，其特征在于：所述的支撑部采用无机材料制成。
  6. 根据权利要求1所述的真空玻璃，其特征在于：所述的支撑部采用玻璃粉或石英粉或陶瓷材料制成。
  7. 一种真空玻璃的制造方法，用于制造如权利要求1或2或3或4或5或6所述的真空玻璃，其特征在于：它包括如下步骤：
    A、选用两片平板玻璃；
    B、在其中一片平板玻璃上布设支撑部；
    C、将两片平板玻璃平行设置，确保支撑部位于两片平板玻璃之间，支撑部外的位置保持间隙；
    D、将两片平板玻璃四边通过高温直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并 使平板玻璃之间的间隙达到或接近真空状态。
  8. 根据权利要求7所述的真空玻璃的制造方法，其特征在于：它包如下步骤：
    在两片平板玻璃之间设置一封闭的腔体，该腔体内封设吸气物质；当两片平板玻璃四边熔接封边后，将封闭的腔体与两片平板玻璃之间的间隙打通。
  9. 根据权利要求8所述的真空玻璃的制造方法，其特征在于：所述的打通方式为激光打通。
  10. 一种真空玻璃的制造方法，用于制造如权利要求1所述的真空玻璃，其特征在于：它包括如下步骤：
    A、选用两片平板玻璃；
    B、将两片平板玻璃平行设置，确保两片平板玻璃之间保持间隙；
    C、将两片平板玻璃四边通过高温直接熔烧并连接封边，在封闭最后一条边时确保熔烧过程中两片平板玻璃之间间隙的环境温度在380℃以上，并使平板玻璃之间的间隙达到或接近真空状态。
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