New national standard released, Dongxu Group promotes the improvement of the stability of ultra-thin glass

News from the National Standards Information Public Service Platform shows that the new national standard "Test Methods for Upper and Lower Temperatures of Ultra-thin Glass Annealing" GB/T 43873-2024, drafted and formulated by Dongxu Group, will be officially implemented from November 1, 2024. This standard stipulates the principles of the upper and lower temperatures of ultra-thin glass annealing, test equipment, etc., which will greatly improve the stability and yield of ultra-thin glass products after implementation.

GB/T 43873-2024 is the fourth national standard that Dongxu Group has participated in drafting and officially implemented this year. This national standard is under the jurisdiction of the National Technical Committee for Standardization of Industrial Glass and Special Glass. The preparation period lasts for two years starting from 2022. Upstream and downstream industry, academia, research, application, supervision and other institutions and units in the industry, including Dongxu, were invited to participate, and was officially released on April 25 this year.

Solve the key difficulties in preparing ultra-thin glass

With the rapid development of new technologies such as 5G, AI, Internet of Things, new energy vehicles and the Internet of Vehicles, the demand for human-computer interaction continues to increase. Mobile device shows a development trend of flexibility and high-definition, and ultra-thin glass products have begun to be widely used. In particular, ultra-thin flexible electronic glass with flexibility and bendable characteristics is sought after by the industry and users.

However, there are still many difficulties and shortcomings in the production, processing, quality and evaluation of ultra-thin glass and flexible glass: for example, in terms of annealing technology, glass forming is mostly formed by rapid cooling and shaping, forming large thermal stress, which must be passed through Slow cooling to eliminate internal stress, thereby obtaining glass products with low stress and high flatness, and reducing the warpage and internal stress value of ultra-thin glass. This is an important indicator that is of great concern to downstream applications. Only by accurately measuring the upper and lower limits of glass annealing can we guide the heat treatment of ultra-thin glass and flexible glass and avoid cracks caused by thermal shock to the greatest extent possible.

The formulation of this standard has filled the gap in the field of ultra-thin glass preparation, helped standardize the preparation and production of new display upstream fields, effectively guaranteed product quality, and injected vitality into healthy competition in the market.

As one of the standard reference units, Dongxu Group has deep attainments in the preparation of ultra-thin glass. Through years of independent research and development, it has broken through the foreign technology blockade and has independent intellectual property rights. Technology has built China's first single-molded ultra-thin flexible electronic glass production line. This participation is also a favorable verification of its own technical reserves and industry voice.

Promote corporate practice and upgrade industry guidelines

In addition to the upcoming implementation of GB/T 43873-2024, two of the series of standards "Test Methods for Glass of Flat Panel Display Substrate" currently led by Dongxu Group are also under intensive preparation. The standard aims to fill a gap in China's field of testing methods for thermal and mechanical properties of flat panel display substrate glass. It is expected to be completed between the end of this year and the middle of next year.

The upstream field of the new display industry chain is a gathering place for material science, precision equipment and core components. Promoting the construction of a standardization system in this field provides an authoritative reference for the evaluation of all links of the industrial chain, and also helps to improve product quality levels and greatly promotes Technological innovation and upgrading enhance the ability of the industrial chain and supply chain to independently control and withstand risks.

As a leading enterprise in the localization of core materials in China's display industry, Dongxu adheres to the principle of technology, products and standards. It has successively presided over the formulation of more than 10 national standards and more than 40 enterprise standards in China. It has won honors such as the first prize in the National Science and Technology Progress Award, the China Patent Gold Medal, and the National Manufacturing Individual Champion. It is a standard setter for display materials and some chip materials, and has promoted a large number of enterprises to practice it into industry norms. Promote the accelerated integration of "knowledge innovation","technological innovation" and "product innovation".

At a time when the global governance system is facing many changes, standardization has become an indispensable key support in international trade and market competition. Dongxu takes revitalizing national industries as its own responsibility. It will persist in scientific and technological innovation, enhance its technical reserves, seize the "commanding heights" of industry standard setting and market competition, strive to build a solid barrier for the sustainable development of enterprises, and contribute to high-level security and high-quality development of China's new display industry. More strength.