Staining solution temperature. Stained with cold dye (room temperature) and thermal dye two kinds. Long cold dyeing time, but is easy to control the uniformity of tone. Thermal dye time is short aluminum elbow, but the tone was difficult to control. Thermal dye temperature control in 40 ~ 60 ℃, such as high temperature (80-90 ℃), tend to make the dye molecule is not fully penetrate deep into the membrane pores already closed, thereby greatly reducing fastness and easy to make surface Flooding. Is a high-strength aluminum hard aluminum supply elbow manufacturers, can be heat strengthened, in the annealed, hardened and thermal state just plasticity medium, good spot welding, gas welding and aluminum welding when there are cracks formed between crystal The tendency; aluminum tubes after quenching and work hardening can be cutting is still good, bad in the annealed state. Corrosion resistance is not high, often with anodized and painted or surface plus clad layer method to improve corrosion resistance. It can also be used as a mold material. Aluminum advantages: First, welding technology advantages: suitable for industrial production of thin-walled copper and aluminum pipe welding technique, known as the world-class problems, is the key technology to connect the air conditioner aluminum and copper pipe. Second, the life of advantages: from the inner wall of tubes, due to moisture-free refrigerant aluminum elbow Which is good, copper-aluminum connecting tube wall corrosion does not occur. Third, energy-saving advantages: good quality aluminum elbow Which air conditioner indoor unit and outdoor unit connecting pipe, the lower the heat transfer efficiency energy saving, or rather, the more power the better the insulation. Fourth, good bending performance, easy installation, transfer machines supply aluminum elbow manufacturers, rolls Alcoa (certified), aluminum elbow by Aluminum Co., Ltd. Jinan Heshun. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) Shandong Jinan, aluminum products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Aluminum in Heshun leadership with the staff warmly welcome all inquiries negotiations to create a better future for aluminum rolls.