In a sense, renewable resources are non-renewable resources, non-renewable resources are renewable resources, Hunan generator recycling, but they are different from each other conversion time fills renewable resource regeneration cycle is short, you do not need hundreds of years of crustal movement, rather than a renewable resource, Jiangsu and Hubei generator recycling, need to go through the hundreds or even millions of years to form and deposited, Hubei and Hubei generators recovered, so in the sense that both can be conducted into each other, But with the modernization process of human pollution intensifies, many could have been a renewable resource resources already facing danger of becoming non-renewable resources such as water pollution is threatening the water quality of rivers and lakes, is air pollution and other industrial emissions. Renewable energy refers to the period of time is inexhaustible resources, strictly speaking, not a permanent resource. But also limited use, do not think it is a renewable energy use without limits. Most of the renewable energy sources are actually other form of storage of solar energy. People began to see the importance of renewable energy and to take certain measures to protect non-renewable resources. 1) Weld tendency of large deformation and crack formation. Coefficient of linear expansion and shrinkage of a crystalline aluminum than steel is about twice as large, easy to produce high welding stress deformation of the rigid structure will cause heat cracks. Thermal conductivity 2) large aluminum (aluminum 0.538 card /Cm.s.℃). About four times stronger than steel, and therefore, when welding aluminum and aluminum alloys, welding steel than to consume more calories. 3) evaporation of the burning of alloying elements. Aluminum containing low boiling point elements (such as magnesium, zinc, manganese, etc.), at a high temperature arcing, burning easily evaporate, thereby changing the chemical composition of the weld metal, weld performance. 4) low temperature strength and ductility. High temperature strength and ductility of aluminum is very low, generating recovery, undermine the weld metal forming, sometimes also likely to cause collapse of the weld metal and weld wear phenomenon. 5) no color change. Aluminum and aluminum alloy from the solid state into liquid, no obvious color change, so that the operator is difficult to grasp the heating temperature. Hubei and Hubei generator recycling scrap metal recycling Shengxin (online consultation), the generator Recycling scrap metal from the Linyi City Shengxin Limited. Linyi City Shengxin scrap metal recycling Ltd. (shengxin.tz1288.com) Shandong Linyi, leading scrap metal, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Shengxin scrap metal recycling leadership with the staff warmly welcome all inquiries negotiations to create Shengxin scrap metal recycling better future.