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Adhesives are widely used in Metro, light rail, EMU and other rail transit vehicles, such as the sealing of automobile windshield and side window glass, the bonding of ground cloth, the bonding of top plate and side wall panel, the bonding of interior trim, etc. Different bonding positions and bonding substrates, such as cold resistant materials, require different adhesive types and processes. Only by selecting the appropriate adhesive and following the correct construction process can the bonding effect be maximized. Take floor cloth bonding as an example, as follows: PVC or synthetic rubber is the common base material of rail transit floor cloth, aluminum honeycomb is the main base material of vehicle floor, and there are also a few wood floors or carbon fiber composites. The bonding area of the floor cloth is large. If the bonding fails, the appearance…
Industries around the world are catching up with the improvement of modern structural tape. Because of its various uses, structural bonding technology has replaced the traditional assembly methods, such as riveting and welding. Nowadays, almost every consumer product has oneortwo kinds of structural adhesives. Throughout, structural adhesives have been helping some of the most innovative and mature OEMs simplify their product lines and maximize process efficiency and finished product quality. Structural adhesive is not only applicable to almost all parts, but also stronger and more reliable than mechanical fasteners such as bolts, rivets and welding. Adhesive has many advantages and few disadvantages. It is an excellent choice for many manufacturers. Three types of adhesives are commonly used in structural bonding applications: epoxy, acrylic, and polyurethane. The choice of adhesive depends on the material to be bonded, the operating environment and…
Adhesives are widely used in the electronics industry, from microcircuit positioning to giant generator coil bonding. Once the adhesive fails, the consequences will be very serious, the computer will stop running, the city will be dark, or the missile launch will be difficult. In addition to mechanical fixation, the application of adhesives in the electronic industry also requires heat conduction, conductivity and insulation to meet the requirements of impact resistance assembly, sealing and protection of substrates. The characteristics required for different applications include: the service life ranges from a few seconds to several years, and the dosage ranges from less than micrograms to more than 1 ton. 1、 Application of various adhesives in electronic industry 1. Epoxy adhesive: it is the most widely used in the electronic industry. It has the advantages of strong versatility, excellent adhesion, wide adaptability, convenient…
Adhesives are usually liquid or paste. These adhesives need to be cured before they can work. Therefore, the curing process of adhesive is also very important. If the curing is not good or you do not know what to pay attention to when curing, it will have a great impact on the bonding of the articles. Even if you use a good adhesive, it may affect the bonding effect. Adhesive curing reaction is a process to obtain and improve adhesive strength and other properties through chemical reactions (polymerization and crosslinking). Curing is the key process to obtain good adhesion. The strength can be maximized only when fully cured. Curing is divided into initial curing, foundation curing and post curing. 1. preliminary curing At a certain temperature, after a period of time to reach a certain strength, the surface has hardened…
Adhesives are widely used in electronic industry, from micro circuit positioning to giant generator coil bonding. Once the adhesive fails, the consequences will be very serious, the computer will stop running, the city will be dark, or it will be difficult for the missile to launch. In addition to mechanical fixation, the application of adhesive in electronic industry also requires heat conduction, conductivity and insulation, and meets the requirements of impact resistant assembly, sealing and protecting substrate. The characteristics required for different applications include: service life ranging from a few seconds to a few years, dosage ranging from less than micrograms to more than 1 ton, etc. 1、 Application of different kinds of adhesives in electronic industry 1. Epoxy adhesive: it is most widely used in the electronic industry because of its strong universality, excellent adhesion, wide adaptability, convenient…