How to repair iron casting defects?
How to repair iron casting defects?
shares that defects such as porosity, pinholes, slag inclusion, cracks and pits often occur in iron castings due to various factors. Common repair equipment for argon arc welding machine, resistance welding machine, cold welding machine. Casting defects with low quality and appearance requirements can be remedied by high heating and fast welding machines such as argon arc welding machines. However, in the field of defect repair of precision iron castings, due to the large influence of argon welding heat, the repair may cause secondary defects such as casting deformation, hardness reduction, sand hole, local annealing, cracking, pinhole, wear, scratch, undercut, or insufficient binding force and internal stress damage. Cold welding machine just to overcome the above shortcomings, its advantages are mainly reflected in the small heat affected area, casting without preheating, cold welding repair at room temperature, so no deformation, undercut and residual stress, no local annealing, does not change the metal structure of the casting state. Therefore, cold welding machine is suitable for precision casting surface defect repair. Cold welding welding repair in the range of 1.5 1.2 mm Φ Φ weld points repeatedly melting process of accumulation, in the process of large area of defect repair, repair efficiency is the only factor to restrict its wide application. For large defects, the composite application of traditional welding repair technology and casting defect repair machine is recommended. But sometimes we don't have a lot of defects, there would be no need to invest more costs, we can use some repairing adhesive repair good, convenient and simple, iron material, for example, we can use (strength element into) JS902 mending, can in the later use to burn, so can save cost for our factory, casting factory, let us get more money to improve the quality of the product itself, for the users to create more wealth.
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Located in Liaoning province in northeastern China, LianJiang Metals Company have specialized in aluminum and iron casting production since 1997. We are an OEM partnership that manufactures and iron parts for clients all over the world and in different industries such as , patio furniture & company.
With over 20 years of casting work experience and expertise, we offer a full range of casting processes including:sand casting,gravity casting,die-casting,vacuum casting
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