Pre-treatment technique for punch-formed metal product

Abstract

The invention provides a pre-treatment technique for a punch-formed metal product. The pre-treatment technique for the punch-formed metal product comprises the following steps that firstly, the surface of the metal product is completely cleaned, then the metal product is baked at the temperature being controlled to 100-120 DEG C for 10-20 min, and afterwards, and the metal product is cooled to the normal temperature; secondly, an oxidation film is smeared on the surface of the metal product treated in the first step, a stabilizing agent is added into the oxidation film at the same time, and then conductive oxidation treatment is conducted; thirdly, an anti-wear agent is evenly smeared on the surface of the metal product treated in the second step, and then the metal product is placed in an oven so as to be baked at the temperature of 80-100 DEG C for 60-80 min; and fourthly, the metal product treated in the third step is immersed in an anti-wear agent while the metal product is hot, an insulating layer is smeared on the surface of the metal product after the metal product is taken out and naturally air-dried, and finally, laser gasification treatment is conducted. Compared with the prior art, the service life of the metal product is prolonged, the machining precision is improved, noise is lowered, material wastage is reduced, and energy is saved; and the technique is simple, the effect is remarkable, and pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of pretreatment of metal products, and in particular relates to a pretreatment process of stamped and formed metal products. Background technique [0002] Stamping and forging of metal products at high temperature will make the product forming easier. During this operation, the surface of the metal product needs to be protected to avoid high temperature oxidation during the metal manufacturing process. Therefore, high temperature oxidation protection is a key issue that needs to be solved in the hot stamping forming process. In the hot stamping forming process, when the plate at high temperature is in contact with air, the surface will be severely oxidized and scale will be formed. Even if it is heated in a heating furnace with a protective atmosphere, it is difficult to avoid being oxidized. The oxide skin not only affects the surface quality of the parts, but also tends to fall off during stamping. It is ...

AI Technical Summary

Problems solved by technology

The oxide skin not only affects the surface quality of the parts, but also tends to fall off during stamping. It is attached to the surface of the mold and must be removed in time, otherwise it will affect the continuity of production; Poor resistance, the scale must be removed before spraying and other treatments to improve the rust resistance of the parts, which increases the production cost and prolongs the production cycle; and the hardness of the scale is high, which may scratch the surface of the mold

[0003] Metal products can be made of pure metals or alloys. In some cases where metal products are used, in addition to the properties of the metal products themselves, it is also expected that the metal products have good specific properties such as heat dissipation, electromagnetic compatibility, and vibration and shock resistance. etc. In order to make metal products have these properties, metal products are usually properly treated to meet different needs, but the existing methods for oxidizing the surface of metal products are complex, greatly reducing work efficiency and increasing costs