Coating for die forging, film and manufacturing process

Abstract

The invention discloses a coating for die forging, a film and a manufacturing process. The coating for die forging comprises a base material and glass powder dispersed in the base material. Accordingto the film for die forging, the coating for die forging is applied on a base material through coating. According to the film for die forging, vaporization is started at the using temperature, the vaporization point is high, and no peculiar smell exists in the vaporization process; and in the die forging process, deformation metal flows at high temperature, meanwhile, the film is gradually vaporized, the heat preservation effect can be achieved, it can be guaranteed that no residue exists on the surface of the vaporized forging, and the beneficial effects of being safe and environmentally friendly are achieved.

Description

technical field [0001] The invention relates to a paint, a film and a manufacturing process for die forging, and belongs to the technical field of die forging. Background technique [0002] Superalloys and titanium alloys are usually heated to about 1000°C for die forging, and the mold temperature used in the die forging process is usually 300-400°C. Due to the large temperature difference between the two, titanium alloys and superalloy materials In the process of deformation, the temperature will be lowered due to heat conduction, which will increase the deformation resistance of the material, make it difficult to flow, and finally make it difficult to ensure the shape. In addition, the metal has a strong mold sticking effect during the die forging process at high temperature. After the die forging is completed Not easy to demould. In order to reduce the risk of temperature drop during the die forging process, the traditional method is to spread aluminum silicate insulatio...

AI Technical Summary

Problems solved by technology

[0002] Superalloys and titanium alloys are usually heated to about 1000°C for die forging, and the mold temperature used in the die forging process is usually 300-400°C. Due to the large temperature difference between the two, titanium alloys and superalloy materials In the process of deformation, the temperature will be lowered due to heat conduction, which will increase the deformation resistance of the material, make it difficult to flow, and finally make it difficult to ensure the shape. In addition, the metal has a strong mold sticking effect during the die forging process at high temperature. After the die forging is completed Not easy to demould

In order to reduce the risk of temperature drop during the die forging process, the traditional method is to spread aluminum silicate insulation cotton in the mold for heat insulation during the die forging process, but this aluminum silicate insulation cotton material will become in the process of metal deformation In powder form, after the die forging is completed, the cavity is full of aluminum silicate powder, which needs to be cleaned by high-pressure air. During cleaning, the dust is flying around. Although the operator wears a protective mask, there is still a risk of inhalation of the respiratory tract and lungs. In addition, the effect of spraying cannot be confirmed for this kind of aluminum silicate insulation cotton, which often causes some parts of the cavity to become powder during the metal deformation process, which is easy to accumulate in the deep cavity of the mold, which is not easy to clean, and Hinder the filling of metal and affect the appearance and size of the product

In order to reduce the risk of mold sticking, after the mold assembly is completed, spray water-based graphite lubricant or oil-based graphite lubricant on the mold cavity, but this method will first generate a large amount of graphite dust in the air, which is harmful to the operator's respiratory tract and the lungs still cause potential harm; secondly, after the graphite powder floating in the air falls to the ground, it increases the smoothness of the ground and cannot be cleaned. Walking on this kind of ground is easy to slip and wrestle, causing safety hazards; third. When spraying water-based graphite lubricant or oil-based graphite lubricant, due to the influence of visibility, the effect of spraying cannot be confirmed, which often causes some parts of the cavity to be sprayed too little to affect lubrication, and some parts are sprayed too much to cause graphite powder accumulation. Cavity Dimension Accuracy