Bo Guan Yue specializes in the 6th "Bonding Day" Bonding & Composite Technology Exchange Conference (Part 2)

The excitement continues on the second day of the conference! A total of 10 speeches were delivered by experienced experts from the fields of home appliances, rail transit, rubber factories, and Yifa.

The title of the report given by Zhao Gong, a professor-level senior engineer of Datong Electric Locomotive Co., Ltd. is: Research on the bonding surface treatment method of the rubber floor of the locomotive cab. Zhao Gong has been engaged in the design of locomotive cab interior decoration and other components for many years, and is responsible for the research and development of cab insulation, sound insulation, fire prevention, environmental control and other research and development work. He took the bonding of floor cloth as an example and improved its bonding performance through surface treatment. However, different surface treatments have their own advantages and disadvantages. He emphasized that in today's resource-saving and environment-friendly society, how to improve the bonding performance of rubber while not polluting the environment and reducing costs is particularly important.

The topic of the report given by Manager Hu of Zhengzhou Zhongyuan Silande High-tech Co., Ltd. was: Discussion on the application of adhesives in the field of rail transit. With a background in military, aerospace and aerospace sealing material technology, Silande is a domestic high-tech enterprise specializing in sealing materials. Its adhesives have a wide range of applications in rail transit, including honeycomb panel bonding, insulating glass bonding, and floor cloth bonding. , threading hole sealing, damping and shock absorption, etc. Many types of adhesives are no less inferior to foreign imported adhesives, and they are also an important supplier of C919.

The title of the report shared by Senior Materials Engineer Yu Gong from the Materials Science Group of BSH Electric Refrigerator R&D Center is: Bonding of Refrigerator Frameless Glass Shelves. This glass shelf innovatively adopts a frameless structure. The core of this innovative structure lies in the bonding technology. Through a meticulous and rigorous design process, with each process supported by test data, Yu Gong evaluated the adhesive and corresponding bonding structure that met the product development needs. In particular, the process he shared about plan selection, bonding material selection, adhesive selection, testing, and process determination is very valuable for learning, and he is worthy of being a bonding expert in the home appliance industry!

Chao Gong, director of the testing center and senior lecturer of Yifa Bonding & Composite Materials Research Institute, gave a speech on the verification requirements in the DIN6701 system. He first introduced the process of bonding product realization and emphasized that bonding needs to be verified, and the verification methods include design verification, process verification, etc. In addition, he also introduced the standard test methods and precautions involved in DIN6701. The testing center of Yifa Bonding and Composite Materials Research Institute has complete testing capabilities and has CNAS accreditation qualifications. It can conduct type testing including bonding design, new product process evaluation, incoming material inspection, failure mode analysis, etc.

Manager Li, new business development manager of Bostik's Transportation Business Department, gave a speech titled: Bostik's new generation sealants and innovative structural bonding adhesives. Due to the addition of the 74th regulation to REACH in August 2020, diisocyanates are placed on the restricted list, which gives isocyanate-free and low-VOC SMP silane-modified polymer adhesives an opportunity and spring. Bostik's GCR series products are safe, durable, environmentally friendly and efficient, and have huge advantages in SMP. In addition, BOSS's MMA series glue has both strength and toughness, and is suitable for a wide range of applications. The rubber-based structural adhesive solves the problem of wide gap bonding.

Li Gong, Bonding Director and Supplier Management Supervisor of CRRC Zhuzhou Electric Locomotive Co., Ltd. gave a speech entitled: Discussion on the fire protection test method of polyurethane adhesive bonding for rail vehicles. He first introduced domestic and foreign fire protection standards, then introduced typical PU bonding joints and sample preparation methods, and finally gave solutions. There are many cases at hand, and he is worthy of being a representative student of the first phase of EAE Huangpu.

Manager Xu, Henkel’s senior soft packaging technology manager, brings: Flexible packaging composite film technology. Equipment, technology, and personnel have always been the core elements of high-quality bonding, and this is also true in the flexible packaging industry. The lamination technology in the flexible packaging industry is gradually developing from traditional dry lamination technology to solvent-free lamination technology, which is safer, environmentally friendly and sustainable. The audience was very interested in this technology, and the discussions on degradability, application process, and opening time were very lively.

The title of Dr. Xu, a senior training lecturer at Yifa and auditor of DIN6701 and DIN2304, is: Analysis of bonding failure in electronic products. Dr. Xu has more than 20 years of experience in adhesive development in the electronics industry. He has extensive experience in the application of bonding in various industries from consulting, Conduct research from different perspectives such as certification audits. Dr. Xu's lecture covered bonding principles, properties of glues commonly used in the assembly of electronic components and construction precautions. Common failure modes and causes are analyzed using actual cases to analyze bonding failures. The guests present were very interested in many of his cases and had lively exchanges at the meeting.

Shen Gong, technical manager of CRRC Qingdao Sifang Rolling Stock Co., Ltd., brought "Constructibility Verification and Serviceability Verification of Adhesive Joints under Extreme Conditions". This topic is of great concern to fellow users and rubber manufacturers. He said that with the expansion of the operating area of rail vehicles, the improvement of speed levels and the application of various lightweight materials, the vehicle service environment has become more severe, the load conditions have become increasingly complex, and the bonding quality and service performance requirements have continued to increase. Therefore, it is necessary to conduct a comprehensive analysis of the extreme conditions of various working conditions, and comprehensively evaluate the construction performance and service performance of the bonded joints to ensure good adhesion and precise and effective maintenance to ensure that they can effectively serve the entire vehicle life. life cycle.

During the entire conference, experts from different industries and fields shared their technical experience in bonding and composite materials. The exchanges were lively and there were frequent interactions on and off the stage. It was truly a great collision of thinking and a great update of knowledge, which truly reflected the The platform communication function of "Bonding Day".

Around the venue, 3M brought their new generation VHB tape and new generation structural adhesive products. The scene was crowded. Technical experts exchanged opinions on some problems encountered in actual production, and some new products were quickly recognized.

Slande brought their floor cloth adhesive, damping adhesive, sealant, and insulating glass adhesive. These are all flagship products. Relying on the professional capabilities accumulated in the aviation and military industry, the market in the rail transit industry has gradually and rapidly improved.

In addition to their world-beating series of "3, 5, 8" SMP adhesives and more cost-effective GCR series products, BOSS also brings MMA's SAF series products and wide-gap bonding products.

Huashang Glass is the only glass manufacturing company participating in the exhibition. Once the various exhibits were displayed, they immediately attracted a large number of visitors. This is also the charm of the "Adhesion Day" conference. Once new technologies appear, they can be directly captured by designers and quickly applied to new designs, greatly reducing market search time. For raw material providers, it also saves a lot of marketing costs and time costs. Information sharing on "bonding day" is direct, fast, and can be verified at any time.

Time flies, and the two-day compact "Bonding Day" conference slowly came to an end with the closing report of General Manager Zhang Yuxian. Everyone took a group photo in front of the podium on Bonding Day, and we hope to see you in Nanjing next year!