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A technology for baking the ink layer of automobile glass in a horizontal tempering furnace

A technology of automotive glass and tempering furnace, applied in the direction of coating, etc., can solve problems such as easy peeling off, ink layer not bright, glass luminous distortion, etc., and achieve the effects of making full use of resources, saving costs, and high yield

Active Publication Date: 2020-08-04
XINYI AUTOMOBILE GLASS (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of the existing automotive glass ink layer after baking, the ink layer is not bright, light-transmitting, easy to fall off after collision and friction, and glass luminous distortion, etc., and a process for baking the ink layer of automotive glass in a horizontal tempering furnace is provided.

Method used

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  • A technology for baking the ink layer of automobile glass in a horizontal tempering furnace
  • A technology for baking the ink layer of automobile glass in a horizontal tempering furnace

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The baking equipment used in this example is a horizontal tempering furnace with forced convection heating. The heating section is heated in sections, and each section is divided into upper and lower layers of heating. Zones 1 to 5 are the first zone, and zones 6 to 10 are the second. Interval: The cooling grille in the cooling section is divided into upper and lower parts, and the cooling section also includes four sets of upper and lower axial flow fans for further blowing cooling.

[0021] A kind of technology that horizontal toughening furnace bakes ink layer of automobile glass, described technology comprises the steps:

[0022] S1. Cut the float glass with a thickness of 2.0mm, smooth the edge of the cut glass, clean it, and clean the dust, oil, impurities, etc. on the glass surface to prevent the black edge from showing through after the printing ink is baked. Unfavorable appearance defects such as light, impurities and pinholes are removed, and then the ink laye...

Embodiment 2

[0033] The difference from Example 1 is that the thickness of the glass in step S1 is 1.8mm; in step S2, the heating temperature of the upper and lower layers in the first 1-5 areas is 535°C, and the upper and lower layer heating temperatures in the 6-10 areas are both 595°C. °C; the total heating time is 150s; the air pressure of the upper and lower air grilles in the flat air grill in step S3 is 2.1KPa.

Embodiment 3

[0035] The difference from Example 1 is that the thickness of the glass in step S1 is 1.9mm; in step S2, the heating temperature of the upper and lower layers in the first 1-5 areas is 526°C, and the upper and lower layer heating temperatures in the 6-10 areas are both 600°C. °C, the total heating time is 155s; the wind pressure of the upper and lower air grilles in the flat air grill in step S3 is 1.7KPa.

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Abstract

The invention discloses a process for baking an ink layer of automotive glass by utilizing a horizontal tempering furnace. The process mainly comprises the following steps: printing the ink layer on the glass and drying; conveying glass into the tempering furnace, and synchronously heating the upper surface and the lower surface of the glass, wherein the heating temperature of a first interval is 525-555 DEG C, the heating temperature of a second interval is 595-635 DEG C, the time of upper-layer compressed air entering the furnace is 2-4 seconds, the air pressure is 0.09-0.11MPa, and the total baking time is 155-165 seconds; and taking out the glass from the furnace, conveying the glass into a flat wind grid, rapidly quenching under the wind pressure of 1.4-2.1KPa, and then cooling to normal temperature. According to the process disclosed by the invention, special equipment is not needed, and resources are utilized; the structure of the baked glass cannot be changed, especially float glass which also has the properties of the original float glass; after the glass is baked, the adverse conditions such as deformation and luminescent distortion and the like can be avoided; and after baking, the ink layer cannot fall.

Description

technical field [0001] The invention relates to a baking process of the ink layer of the automobile glass, in particular to a technology for baking the ink layer of the automobile glass by using a horizontal tempering furnace. Background technique [0002] Currently, automotive glass is often printed with a "black border", which is actually a layer of ink. The ink layer can play the role of decoration, reducing the transmittance of ultraviolet rays, and covering the conductive silver paste. After the ink layer is printed on the corresponding position of the car glass, it needs to be baked at high temperature. The usual method of baking is to print the ink layer on the glass, put the printed glass on the flat film, and send it into the high-temperature electric furnace. After high-temperature baking, the ink slowly penetrates into the glass in a liquid state. The cooled ink bonds to the glass. But using this method to bake the ink layer of automobile glass, there are param...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00
CPCC03C17/002C03C2217/74C03C2218/32
Inventor 李圣根
Owner XINYI AUTOMOBILE GLASS (SHENZHEN) CO LTD