Method for metal parts surface defects restoring and antiseptic treatment

Abstract

The invention relates to a surface defects repairing and anti-corrosion treatment method for metal parts, which is characterized in that: the method is carried out according to the steps of: the sorting of coming material sorting and the finding of the defect places; cleaning and pretreatment, i.e. the surfaces of the workpieces are cleaned and shielded and defect places are only exposed; repair and anti-corrosion treatment of the surface defects by combining method of a first peening, coating and a second peening.. The surface defects repairing and anti-corrosion treatment method for metal parts of the invention solves the surface defects for casting and forging processing parts, such as the surface defects of car wheel hub and large motorcycle wheel hub, for example, the repairing of slag hole, pin hole, scratching, eroded point, shrinkage porosity and external damage, and the repairing for the abrasion of copper shaft and copper roofing; the invention can also be widely applied to the anti-corrosion treatment for the surfaces of iron and steel processing parts, gas storage tanks, boiler parts. The invention has the advantages of simple processing technology, low expenses, short time consumption and excellent performance and quality.

Description

technical field [0001] The present invention relates to a method for metal surface treatment, especially for the surface defects of casting and forging workpieces, such as the surface defects of automobile wheel hubs and large motorcycle wheel hubs, such as slag holes, pinholes, scratches, corrosion spots , shrinkage and trauma repair; wear and repair of copper shafts and copper tiles; anti-corrosion treatment of the surface of steel processing parts such as gas storage tanks and boiler parts, especially a method for repairing and anti-corrosion treatment of metal parts surface defects. Background technique [0002] At present, the repair of surface defects of metal parts at home and abroad, especially for the surface defects of casting and forging workpieces such as casting sand holes, slag holes, pinholes, scratches, corrosion spots, shrinkage porosity and trauma, is In the traditional production process, a small number of sand holes, slag holes, pinholes, etc. with a smal...

AI Technical Summary

Problems solved by technology

When the number of sand holes on the workpiece is too large, it will be scrapped and returned to the furnace, so the scrap rate of production is high, a lot of money is wasted, and a lot of economic losses are caused.

At present, there is no better solution to the surface defects of casting and forging workpieces at home and abroad, and only the treatment method of scrapping and returning to the furnace can be used.