Solving methods: ① not use bad beat slag refining agent containing sodium or magnesium salt, preferably using NaF component refining modificators, or N2 gas refining; ② not use release agents containing plant fiber and plant fiber-containing machine cutting fluid, is best replaced by oil-based rust-proof cutting fluid; ③ the product can not be long-term exposure to the sun, or likely to cause the accumulation of fly ash surface textile products; ④ lights placed in carton packaging board must use Stretch 6 bread wrapped, if the product is wet Shandong casting aluminum prices must be timely ventilated place to dry. b) seams Mifengbuyan, uneven, with bubbles and leakages 1. Reasons (1) when caulking at the end of the block with a polyethylene foam back panel tight aluminum casting factory in Jinan, when perfusion with caulking gun sealant at last a certain pressure, and seams that bond is not strong, Mifengbuyan; (2) the operation of the workers operating unskilled, when the caulking gun at a distance from the caulking inconsistent, uneven pressure, resulting in uneven thickness Shandong casting aluminum Which is good, fitting more into the air, causing the surface of the sealant is not straight, there is a bubble and leakages; and (3) material issues: silicone sealant quality problem. Shandong aluminum casting factory, aluminum casting, aluminum is provided by Jinan Heshun Heshun Aluminium Limited. Jinan Heshun Aluminum Co., Ltd. (www.jnhsly.com) (www.jnhsly.cn) is specialized in "aluminum, aluminum, aluminum, aluminum rod, aluminum row, aluminum, aluminum rod, aluminum elbow" of the enterprise the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Zhang.