Application Scope

Used for high-temperature carbonization of lithium battery anode materials and high-temperature sintering of lithium iron phosphate.

Product features

The saggar products of Haixi Institute have a complete production and processing chain. The company has developed the first domestic automated saggar production line, with each production line capable of achieving a monthly stable output of 30,000 graphite saggars. Compared with manual operation, this reduces collision and damage to the saggar body during processing, effectively ensuring the consistency of product quality and the stability of shipment.

Complete quality assurance service

We provide customers in the industry with a full-year quality assurance service to ensure that each saggar meets the physical and chemical indicators required by customers. The pursuit of quality is our constant goal for continuous progress.

The difference between machined saggars and pressed saggars：

（1）Processing technology of machined saggars:

Petroleum coke powder → kneading → rolling into sheets → re-pulverizing into powder → pressing into shape → roasting at 900°C → impregnation → re-roasting at 900°C (repeated roasting to increase bulk density) → graphitization at 2900°C → machining to hollow out the core to form a graphite saggar.

（2）One-time forming production process for graphite saggars:

powder from the market → Add binder → One-time extrusion molding in a mold → Sintering at approximately 800°C → Ready for sale

（3）Advantages of machined saggars:

1.High strength, good toughness, low electrical resistance, excellent flexural and compressive properties.

2.High purity, low sulfur and ash content (volatilized after 2900°C graphitization), minimal impurities, pollution-free, and good corrosion resistance.

3.Dimensionally stable at high temperatures,resistant to damage, anti-oxidation, excellent reductive atmosphere compatibility, and high sintering yield rate.

（4）Disadvantages of one-time forming graphite saggars:

High impurity content, serious pollution, low strength, poor oxidation resistance, poor corrosion resistance, prone to damage, and the volatilization of impurities in the graphite saggar during the sintering process easily contaminates the product.