Manufacturing method of low-emissivity coated laminated glass capable of removing film in peripheral area and being bent by drying

A low-radiation coating and surrounding area technology, applied in the field of coated laminated glass manufacturing, can solve the problems of difficult film removal and low removal efficiency of automotive coated glass, so as to avoid film corrosion, ensure film quality, and prevent secondary pollution effect

Inactive Publication Date: 2015-12-23
FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process cannot achieve partial area film removal
[0012] Chinese patent 200820000985.8 discloses a film removal machine around the glass, which uses a grinding head to remove the film. This film removal device is semi-automatically operated and suitable for large-scale production, but this device is only suitable for linear and equidistant film removal, that is, film removal The vertical distance from the edge of the film layer to the periphery of the glass is equal; and the original glass for coating is rectangular, this d

Method used

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  • Manufacturing method of low-emissivity coated laminated glass capable of removing film in peripheral area and being bent by drying
  • Manufacturing method of low-emissivity coated laminated glass capable of removing film in peripheral area and being bent by drying

Examples

Experimental program
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Example Embodiment

[0047] Example one

[0048] Such as figure 1 As shown, a manufacturing method of bakeable low-emissivity coated laminated glass with film removal in the peripheral area includes the following steps:

[0049] 1) Original glass pretreatment: the original green float glass with a thickness of 1.8mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is called "large glass";

[0050] 2) Coating: using magnetron sputtering coating equipment to coat the surface of the automotive-grade original glass obtained in step 1) with a low-emissivity film layer, which adopts the film configuration disclosed in Chinese Patent 200810071891.4;

[0051] 3) Film removal: Input the CAD graphics of the surrounding area to be removed 2 into the system control software of the CNC (Computer Numerical Control) host. According to the thickness of the film, set the laser power to 500W and the spot diameter to 5mm. The automatic cycle is started in the software, the rob...

Example Embodiment

[0057] Example 2

[0058] A manufacturing method for bakeable low-emissivity coated laminated glass with film removal in the peripheral area, the method comprising the following steps:

[0059] 1) Original glass pretreatment: the original white float glass with a thickness of 1.8mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is called "large glass";

[0060] 2) Coating: Use magnetron sputtering coating equipment to coat a low-emissivity film on the surface of automotive-grade original glass. The low-emissivity film adopts the film configuration disclosed in Chinese Patent 200810071891.4;

[0061] 3) Film removal: Input the CAD graphics of the surrounding area to be removed 2 and the area to be removed 5 of the base into the system control software of the CNC (Computer Numerical Control) host, and set the laser power to 800W according to the thickness of the film, and set the spot The diameter is 8mm, the automatic cycle is started i...

Example Embodiment

[0063] Example 3

[0064] A manufacturing method for bakeable low-emissivity coated laminated glass with film removal in the peripheral area, the method comprising the following steps:

[0065] 1) Original glass pretreatment: the original transparent float glass with a thickness of 2.1mm is sliced, loaded, cut, edged, washed and dried to obtain automotive-grade original glass, which is called "large glass";

[0066] 2) Coating: Use magnetron sputtering coating equipment to coat a low-emissivity film on the surface of automotive-grade original glass. The low-emissivity film adopts the dual silver Low-E film configuration disclosed in Chinese Patent 20092007779.4;

[0067] 3) Film removal: Input the CAD graphics of the surrounding area to be removed 2 into the system control software of the CNC (Computer Numerical Control) host. According to the thickness of the film, set the working power of the laser to 1000W, and set the spot diameter to 10mm. In the system control software Start the...

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Abstract

The invention relates to a manufacturing method of low-emissivity coated laminated glass capable of removing a film in the peripheral area and being bent by fire drying. The manufacturing method comprises the following steps of firstly, pretreating a raw glass sheet: performing slicing, sheet loading, cutting, edging, washing and drying treatment on the raw glass sheet to obtain an automotive-grade raw glass sheet; secondly, coating a film: coating a low-emissivity film layer on the surface of the automotive-grade raw glass sheet by using magnetron sputtering coating equipment; thirdly, removing the film: using robot arms to control a laser for instantly evaporating a low-emissivity film layer material in an area which does not need coating, of the automotive-grade raw glass sheet; fourthly performing posttreatment: performing drying, powder spraying, pairing, fire drying-bending, laminating, and high-pressure and packaging treatment on the automotive-grade raw glass sheet to obtain the low-emissivity coated laminated glass capable of removing the film in the peripheral area and being bent by fire drying. Compared with the prior art, the manufacturing method disclosed by the invention has the advantages that the uniformity in coating is realized, an electromagnetic wave signal is enabled to pass through, a low-emissivity function is guaranteed, and a glass double-image is small in area; the manufacturing method is suitable for preparing coated glass in automobile windscreen and skylight laminated glass.

Description

technical field [0001] The invention relates to a method for manufacturing a coated laminated glass, in particular to a method for manufacturing a bakeable and bendable low-emissivity coated laminated glass in which the film is removed in the peripheral area. Background technique [0002] According to the manufacturing process of low-E coated glass, it can be divided into two types: online low-E coated glass and offline low-E coated glass. The invention belongs to the field of offline low-E coated glass. [0003] Off-line low-E coated glass is composed of multi-layer films, which are produced by magnetron sputtering coating technology. The functional layer is mainly silver layer. Since the silver layer is particularly easy to oxidize, ordinary off-line low-E coated glass For heating operation, it can only be used to synthesize insulating glass immediately after coating. [0004] With the continuous advancement of technology, toughened low-E coated glass has appeared in rece...

Claims

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Application Information

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IPC IPC(8): C03C17/00C03C27/12
Inventor 陈云飞陈绍木林永安李巍
Owner FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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