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Cold-formed glass article with thermally matched system and process for forming the same

A technology for glass products and glass sheets, which is applied in the field of cold-formed glass products with a thermal matching system and the process of forming the same, and can solve problems such as deformation of curved surfaces.

Pending Publication Date: 2021-08-06
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a combination of properties of the curved surface, adhesive, and frame may cause deformation of the curved surface

Method used

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  • Cold-formed glass article with thermally matched system and process for forming the same
  • Cold-formed glass article with thermally matched system and process for forming the same
  • Cold-formed glass article with thermally matched system and process for forming the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] Comparative Examples 1 to 3, and Examples 4 to 8 were performed as discussed below and are summarized in Table 1.

[0073]

[0074] Table 1. Deformation of reference S-shaped parts for different frame materials and adhesive materials

Embodiment 4

[0082]As an example of an embodiment of the present disclosure, a glass article was fabricated using a reference product design framework of ferritic stainless steel 410 . This frame substrate was chosen because it has a close coefficient of thermal expansion (CTE) to the chemically strengthened aluminosilicate cover glass sheet. For reference, the CTE of the cover glass sheet is 7.88 μm / m / °C. Regarding the frame material, the CTE of aluminum (Al) 5052H32 alloy is 23.8μm / m / ℃, the CTE of MgAZ91D alloy is 25.2μm / m / ℃, the CTE of low carbon steel 1080 is 14.7μm / m / ℃, ferritic stainless steel SS410 has a CTE of 9.9 μm / m / °C, and PC / ABS has a CTE of 67 μm / m / °C. The cover glass sheet used in this example had a thickness of 0.55 mm and was cold formed and processed in a vacuum table using 3M TM Scotch-Weld TM DP460 toughened epoxy is attached to the frame material. The adhesive was cured at a temperature of 65°C for 20 minutes. After curing, the samples were cooled to room temper...

Embodiment 5

[0084] As an example of an embodiment of the present disclosure, Example 5 is similar to Example 4 except that curing is performed at 95° C. for 2 minutes. After curing, the sample was cooled to room temperature, no deformation was observed in the display area and slight deformation was observed in the non-display area. Performing ATOS measurements, the CAD nominal maximum deformation is 0.39mm and -1.16mm in the display and non-display areas, respectively. This example is comparable to Example 4 and shows the effect of higher curing temperatures on product deformation. Higher temperatures during curing lead to larger deformations due to small CTE mismatches between materials (eg, glass and frame).

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Abstract

A glass article is provided with a cover glass sheet having first and second major surfaces. The second major surface has a first region with a first curve of a first radius of curvature, and a second region that is different than the first region. A frame's supporting surface has a third region of a first frame material and a fourth region of a different, second frame material. The second major surface faces the supporting surface, and the third region includes a second curve that complements the first curve while the fourth region complements the second region. A first adhesive is between the third region and the first region. A second adhesive is disposed between the fourth region and the second region. The first adhesive has a first Young's modulus, and the second adhesive comprising a second Young's modulus that is different than the first Young's modulus.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority under 35 U.S.C. §119 to U.S. Provisional Application No. 62 / 773,505, filed November 30, 2018, and U.S. Provisional Application No. 62 / 773,497, filed November 30, 2018, in reliance on the contents thereof and is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to vehicle interior systems including glass and methods of forming the same, and more particularly, to vehicle interior systems including curved glazing having a cold-formed or cold-bent cover glass and methods of forming the same method. Background technique [0004] Vehicle interiors include curved surfaces and displays can be incorporated into these curved surfaces. The materials used to form these curved surfaces are typically limited to polymers that do not exhibit the durability and optical properties of glass. Therefore, curved glass substrates are de...

Claims

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Application Information

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IPC IPC(8): B60R13/02B60K35/00B32B17/06B32B15/18B32B27/36
CPCB60R13/0262B60K35/00B32B17/061B32B15/18B32B27/365B32B2355/02B60R13/0256B32B17/10B60K35/223B60K35/60B60K35/22B60K35/53C03C27/048C09J7/20C09J163/00C09J133/00C09J175/04C09J183/04B32B7/027B32B7/12B32B37/12B32B2457/20B32B37/02
Inventor 卡洛斯·弗朗西斯·阿隆佐阿图尔·库马尔牟进发克里斯托弗·马克·施魏格
Owner CORNING INC