Guangzhou HF Topping Metal Works Co., Ltd.  

Product Name: High Quality Stainless Steel Casting Hinge Flush Type Window Hinge / Door Hinge Model NO.: TP-HG Finish: Mirror Type: Flush Type Mat'l: SUS316 Description: Flush Hinge Process: Casting, Machining, Polishing Standard: GB ASTM AISI DIN BS Certificate: ISO9001, SGS Trademark: TOPPING Transport Package: Carton Origin: Guangdong HS Code: 8302100000 Product Description Other Statements@ Heat Treatment N/A@ Shape RectificationApplicable, by "Oil Pressure Machine".Notice Over Pressure issue when rectifying.*** NOTES (why shape/dimension Rectification is necessary for some castings)Not like machined parts, investment castings will deform in varying degree during production. Usually, it is the biggest problem for this kinds of parts. Reasons as below:-1/ Wax mold deformation (one main reason; wax is SOFT)2/ When casting process, during cooling down, SHRINKAGE will lead to deformation in different position/direction especially for those Asymmetrical part. (another main reason)3/ Shot Blasting also will lead deformation a little bit.4/ If Heat Treatment is needed, Deformation also might happen after this processIn order to obtain correct dimensions, especially for those with critical tolerance requiriement, Rectification is necessary. Usually, for small parts, the deformation is not obvious, rectification will be not needed.Optional Final Finish/Surface Treatment for Castings Including:-Shot Blast, Satin Polished, Mirror Polished,ElectropolishedSurface Passivated, Chromate Plated, Zinc Plated, Ni Plated,ED- CoatedPrimer Painted , Finish Painting, Powder Coated, Dacromat Coated