Matters aluminum welding needs to be questioned, the welding time success better, because aluminum melting point is too low peeling tool, when the second reheating tubes easily deformed. 2, welding flux must be applied evenly to ensure the quality of solder joints. 3, the torch flame can not be too long and must be heated with a slow fire, or dispersants tubes easily melted. 4, welding finished seamless tubes suppliers, nylon special paste to wait two, three minutes after the cement pipe cooling repository can contact, otherwise leaky pads. 5, welding time not too long seamless tubes manufacturer, because the melting point of aluminum is too low for too long prone to melting or thinning of the pipe wall seamless tubes, pressure can easily leak. 6, the liner must be placed wet towels, protected place, because the welding space is small, so be sure to pay attention to the protection of the refrigerator. 7, after the electrode can be heated with a torch dipped in solder powder, low melting point because this electrode. Aluminum windows and doors leak prevention and control 1, the design and preparation stage a) early intervention, participate drawings joint hearing on the design defects, proposed deepening of the design requirements; rigorous calculation and design according to specifications according to project characteristics b) structural design, Do not simply apply; c) the characteristics of a model based on the engineering construction window seamless tubes Which is good, do the preliminary prevention, process control, test phase watertight; before d) production, truly physical performance testing to determine the doors and windows to meet the design requirements and performance indicators; e) Try to use the same manufacturer, same series window profiles, do not simply put together, try to use a high frame retaining section, increase the seal passes and adding windows and doors windows and doors lock point; seamless aluminum pipe Which is good, rolls Alcoa (online consultation), seamless tubes provided by the Aluminum Co., Ltd. Jinan Heshun. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) in the field of aluminum products devoted boundless enthusiasm and passion, rolls Alcoa has been customer-centric, for customers to create the concept of value, quality, service to win market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcomed the inquiry, Contact: Zhang.