Isostatic Pressing Molds
Characteristics of Isostatic Pressing
The characteristics of isostatic pressing are similar to the principle of isostatic pressing. Axial pressing molding is unidirectional or bidirectional pressure pressing, powder and mold friction is larger, pressure along the pressing direction will produce pressure loss, so that the density of each part of the blank body is not uniform. The pressure transmitted by the liquid medium in isostatic pressing is equal in all directions. When the elastic mold is subjected to the pressure of the liquid medium, the deformation is transferred to the powder in the mold. The friction between the powder and the mold wall is small, the force of the blank body is uniform, the density distribution is uniform, and the product performance is greatly improved.
Isostatic pressing process
1. Powder pretreatment, isostatic pressing molding process of poor powder also needs to pretreat the powder, through the granulation process to improve the fluidity of the powder, adding binder and lubricant to reduce the friction in the powder, improve the bonding strength, so as to adapt to the needs of the molding process.
2. Molding process, including loading, pressure, pressure preservation, pressure relief and other processes. The charging should try to make the powder be evenly filled in the mold to avoid the existence of air holes; Pressure should be stable, pressure speed is appropriate; According to the different powder and billet shape, select the appropriate pressure and pressure holding time; At the same time, select the appropriate pressure relief speed.
3. Forming mold, isostatic pressure has special requirements for forming mold, including enough elasticity and conformal ability; It has high tensile, cracking and wear resistance. Good corrosion resistance, no chemical reaction with the medium; Good demoulding performance; Low price, long service life. Generally, wet isostatic pressing mostly uses rubber molds, dry isostatic pressing mostly uses polyurethane, polyvinyl chloride and other materials.
Jiangsu High Tech Co., Ltd. is located in Zhenjiang, Jiangsu. It is a high-tech enterprise that develops and produces high-performance polyurethane products, cold isostatic pressing molds and cold isostatic pressing machines. The company's main products are polyurethane isostatic pressing molds and cold isostatic pressing machines. The company's products are widely used in all walks of life in China and exported to more than 30 regions around the world. They are widely praised by customers for their excellent quality and good service. The company always adheres to the product concept of "quality first" and has a deep understanding of customer needs. The company has been committed to the research and development and production of high-performance polyurethane elastomer molds for many years, and solves various design and production problems of polyurethane elastic molds for isostatic pressing users. The company has mature production and processing technology and a complete set of experimental equipment for mold elastomer analysis. In order to ensure the excellent impact resistance, abrasion resistance, cutting, tear resistance and clarity of the product and excellent dimensional stability. Its products are widely used in magnetic materials, ceramics, cemented carbide, high temperature refractory materials, rare earth permanent magnets, carbon materials, rare metal powders and other industries.
Compare to traditional rubber cold isostatic pressing bags, the polyurethane CIP bags have significant advantages. As a new polymer material, polyurethane products feature smooth surface, wearing-resistant, anti-fatigue, low deformation rate. The surface of pressed products with polyurethane bags is much smoother than that pressed with rubber bags, thus it possesses better looks and less postprocessing is required. It’s an ideal tool for powder material forming by press process, which can help a company reduce cost and increase efficiency.
We support all kinds of customization, if you need it, please contact us.
Phone/whatsapp:+86 18234744811
Email:sales@highindustryco.com
