Isostatic Graphite

Fine-grained cold isostatically pressed graphite material is a new material that has appeared in the past half century. It has the characteristics unmatched by general materials: good electrical and thermal conductivity, high temperature resistance, corrosion resistance, high mechanical strength at high temperature, high bulk density, high purity, easy to process and so on. Due to the above product characteristics, the application of isostatic graphite is more and more extensive, such as the drawing of single crystal silicon, the production and ingot casting of polycrystalline silicon, electric discharge machining, metal continuous casting, vacuum furnace, high temperature corrosion resistant container and Special uses related to the characteristics of this product.

As a molding process, isostatic pressing technology has the following characteristics compared with conventional molding technology:
1. The isostatically pressed product has a high density and is generally 5 to 15 higher than the one-way and two-way molding. The relative density of hot isostatic products can reach 99.8%~99.09%.
2. The density of the compact is uniform. In the press molding, uneven density distribution of the compact occurs regardless of whether it is one-way or two-way pressing. This change in density can often reach more than 10% when pressing complex shaped articles. This is due to the frictional resistance between the powder and the steel mold. The isostatical fluid medium transmits pressure equally in all directions. The wrap and the powder are generally compressed, the powder and the wrap have no relative motion, the frictional resistance between them is small, the pressure is only slightly decreased, and the density falling gradient is generally only 1% or less, so the billet can be considered uniform for the bulk density.
3, because the density is uniform, so the length to diameter ratio can be unrestricted, which facilitate the production of rod-shaped, or thin and long tubular.
4, In isostatic pressing process, it generally do not need to add lubricant into the powder, which not only reduces the pollution of the product, but also simplifies the manufacturing process.

等靜壓石墨

Tianjin Kimwan Carbon Technology & Development Co., Ltd., the predecessor was established in 1998. The company is mainly engaged in research, development, production and sales of special new carbon and graphite materials, and has 12 patents.
After years of integration and development, the company has established three production bases: Tangshan Kimwan Special Carbon & Graphite Co., Ltd., Qingshan Special Graphite and Carbon Co., Ltd., and Anhui Kimwan Carbon Technology Development Co., Ltd., which have complete production of raw materials preparation systems, molding systems, roasting systems, impregnation systems, graphitization process systems, and fully automated processing systems for graphite products. The products produced mainly include 4 categories: molding, extrusion, isostatic pressing and vibration molding. The company holds ISO9001, TS16949, ISO14001 environmental management system and OHSAS18001 certification for occupational health and safety management system.
The series of special carbon graphite products produced by the company are widely used in traditional industrial fields such as metal smelting and processing, electronic semiconductor industry, high temperature industrial furnace treatment, etc., and more and more have been applied to rail transit, photovoltaic industry, lithium battery and other High-tech fields. The products have been sold to more than 50 regions including the United States, Japan, Germany and India, and have established long-term supply and demand relationships with many large domestic enterprises.

Technical index

We can also purify the product according to customer needs. The purified product has an ash content of 30-50ppm or less and 5ppm or less.。