High-frequency power supply requirements for the technical difficulty of aluminum welding process, ① use higher frequencies, so that the weld heat affected zone and the inner wall of the narrow current decreases. ② requirement weld power density, the faster welding speed, weld quality is better. ③ tube anode DC voltage requirements of stable and smooth, its ripple factor requirement of around 1%. e) face the wind or rain erosion surface to prevent rainwater percolating through the filling material and the wall between the windows, give due consideration to the sealing barrier or other waterproof coating, increasing impermeability; f) to leave the sash junction dispensing slot width 5-8mm, insert injection sealing material, it should pay attention to remove floating dust, mortar, so that the sealing material and window frames, wall firmly bonded. Also check whether the sealing material continuously Shandong antenna tube, is missing, etc., especially if there is a transfer position angular pores exist; external wall tiles should be used for two or more sealed to avoid patchwork capillary water penetration; g) adjustment mats Block ban remains in Jinan door frame antenna pipe prices, should be promptly removed after the second filling dense and reliable bonding with the substrate filling note Shandong antenna tube manufacturers, in addition to outside should remove residue moist substrate; h) outdoor sill should indoor sill plates 20mm lower than is appropriate, and set the sails slope antenna pipe, drainage flow, to avoid water penetration. Aluminum windows and facades have a certain distance, avoid direct rain erosion. i) door and window fittings materials, specifications, connection method that complies with local "aluminum alloy doors and technical regulations" requirement, timely and concrete or mortar anchor seal, to avoid leaving the sealing material moving cracks under wind loads. Shandong antenna pipe manufacturers _ cis Alcoa (Online) _ antenna tube 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.