Filming agent used for treatment of wires processed by cold plastic deformation and preparing method thereof

Abstract

The invention relates to a metal surface treatment technology, in particular to a filming agent used for the treatment of wires processed by cold plastic deformation and a preparing method thereof. The preparing method comprises the following steps: weighing or measuring the following raw materials in parts by weight: 10-20% of zinc oxide, 5-10% of ferric nitrate, 5-10% of zinc nitrate, 1-5% of nickel nitrate, 25-30% of phosphoric acid, 20-25% of nitric acid and 10-15% of water; adding the zinc oxide into a reactor, then filling the water, and stirring; respectively filling the phosphoric acid and the nitric acid into the reactor, and stirring; after reaction is over, filling the ferric nitrate, the nickel nitrate and the zinc nitrate into the reactor, and stirring; and after a temperature is cooled to a normal temperature, preparing the filming agent used for the treatment of the wires processed by cold plastic deformation.

Description

technical field [0001] The invention relates to metal surface treatment technology, in particular to a coating agent used in cold plastic deformation processing wire rod treatment and a preparation method thereof. Background technique [0002] Plastic processing is a basic metal processing technology that causes metal to undergo plastic deformation under external force, usually pressure, to obtain products of desired shape, size, structure, and performance. It was often called pressure processing in the past. There are many types of metal plastic processing. According to the force and deformation of the workpiece during processing, the basic plastic processing methods include forging, rolling, extrusion, drawing, stretching, bending, and shearing. [0003] The plastic deformation of metal without heating is called cold plastic deformation. For example, processing methods such as stamping, cold bending, cold drawing, and cold heading all belong to cold plastic deformation. ...

AI Technical Summary

Problems solved by technology

Due to the unsatisfactory physical and chemical properties of traditional lubricants, it is necessary to do necessary pretreatment on the metal surface during the cold drawing process of the billet to ensure the amount and firmness of the lubricant.

Therefore, according to the traditional processing method, the blank must be pickled, washed, phosphated, washed, neutralized and saponified before cold drawing. There are many procedures and low production efficiency. After that, either return to phosphorus washing, water washing, neutralization, saponification, and cold drawing again; or return to pickling after annealing and repeat the above pretreatment process before cold drawing

From the blank to the finished product, it generally takes several to a dozen passes of cold drawing, resulting in repeated cycles of the above process

Due to poor lubrication effect, large drawing force, high consumption of power molds, difficulty in continuous extraction, high processing cost; low surface finish of finished products, and poor working conditions for workers, serious pollution

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