Dongfeng Motor Co., Ltd. estimates that a wide range of radiators can be replaced with one ton of low-titanium solder, which can save cost. The plant consumes hundreds of tons of solder every year. If the use of low-titanium solder, the economic benefits are very significant. The annual consumption of solder in the radiator industry exceeds tons. With the rapid development of the automotive industry, the usage will increase. Therefore, in the later generations, the domestic research and development of low-tin solders began. Analysis of Current Low-Tin Solders in China Sn/Pb Solders With the decrease of tin content, there are three adverse effects on solderability. The melting point of the solder increases. The solder has poor toughness and physical and chemical properties. The date of the first edition of the Journal of Hubei Automotive Industry Institute is therefore, must add other alloying elements to make up for and improve. The United States is adding a single metal silver and it works well. In China, however, it is not possible to develop low-titanium solders for domestic use. In general, rare-earth fillers have been added. Some developers have also added various alloying elements such as secrets and antimony. The developed low-tin solder is economically viable and mechanically satisfactory. However, the solderability is poor, which brings certain difficulties to production applications. In order to use low-titanium solders for production, the production process is greatly changed. Firstly, it is not allowed to stop the work to renovate the production. Second, to change the process and increase the production cost is not worth the gains. The feasible approach is to basically maintain the current production process within a small range. Some adjustments have been made to improve brazeability through a combination of various functions, so that low-solder solder can be used in the production of radiators. Laboratory Experiment Analysis To guide the experiment on the production line, laboratory experiments follow the following principles: The experimental conditions are as close as possible to the actual production. The amount of tin contained in the tin used in the current production and the tin content in the low tin solder were compared and experiments were conducted under the same conditions. Through experiments to find out the difference between the two kinds of solder, while finding out the corresponding improvement measures. The bonding strength between the brazing material and the base metal can not change the structure of the original product after using the low tin solder material, that is, the bonding strength between the low-tin solder material and the base material cannot be lower than the bonding strength between the high-tin solder material and the base metal. Machinery And Equipment Parts,Metal Pipe Clips,Metal Tube Clamp,Clamp Metal Ningbo Metal Sharing Supply Chain Management Co., Ltd , https://www.metalsharing.com