Saggar

About: Saggar is a research topic. Over the lifetime, 97 publications have been published within this topic receiving 217 citations.

Formula and production technology of saggar for firing cathode material for lithium battery

Abstract: The invention discloses a formula and a production technology of a saggar for firing a cathode material for a lithium battery. The formula comprises a surface composite layer formula and a sagger mainbody formula, wherein the surface composite layer formula comprises the following components in percentage by mass: 18 to 22 percent of zircon sand with 200 meshes, 8 to 10 percent of superfine zircon sand with 8000 meshes, 16 to 20 percent of alumina powder with 800 meshes, 16 to 23 percent of cordierite with 100 meshes or below and 30 percent of Suzhou kaolin with 325 meshes; the sagger main body formula comprises 8 to 12 percent of cordierite with 8 to 16 meshes, 20 to 24 percent of cordierite with 16 to 60 meshes, 3 to 7 percent of cordierite with 60 to 100 meshes, 1 to 5 percent of cordierite with 100 meshes or above, 9 to 12 percent of mullite with 16 to 60 meshes, 18 to 22 percent of alumina powder with 800 meshes, 25 percent of No.2 hand-selected Suzhou kaolin with 325 meshes and3 to 5 percent of yellow dextrin. The formula and the production technology disclosed by the invention have the beneficial effects that firstly, in the formula of the saggar, the zircon sand is used to replace ZrO2, and the price of the zircon sand is relatively low, so that the production cost of the saggar is greatly reduced; secondly, the saggar prepared by adopting the formula and the technology disclosed by the invention has a zircon sand composite layer and higher corrosion resistance; thirdly, the economy and the high performance are perfectly unified.

Method of firing ceramic core bodies

Abstract: Firing of ceramic cores ( 1 ) is important in order to achieve manufacturing processes. These ceramic cores ( 1 ) are generally formed in a “green” state which has limited mechanical strength and may be distorted during the firing process by non-uniform thermal effects, etc. By providing a tube or containment 2 which is located on a saggar base 3 and surrounded by firing media 4 , it is possible to achieve an initial pre-firing step whereby the “green” state core 1 is located through a stem 1 a in an initial partial depth 5 of firing media 4 in the tube or containment 2 until it achieves a sufficient mechanical strength to enable positional adjustment. Thus, the green core will be pre-fired in a kiln solely supported through the stem 1 a and then the core adjusted using a tool such as an engineering rule. There is a positional accuracy between the walls of the tube or containment 2 and the saggar base 3 between all cores and then the tubes 2 filled and leveled with further firing media 4 for the main firing of the core 1 in use.

Composite saggar and preparation method thereof

Abstract: The invention discloses a composite saggar and a preparation method thereof. The composite saggar is prepared from raw materials in parts by weight as follows: 10-13 parts of magnesium mud, 10-12 parts of black talc, 33-35 parts of refractory mortar, 10-12 parts of sand, 4-6 parts of ballstone, 4-6 parts of aluminum powder, 5-7 parts of bauxite, 17-19 parts of refined mud, 90-160 parts of mullite, 22-35 parts of cordierite powder, 8-12 parts of attapulgite, 8-12 parts of calcined kaolin, 8-12 parts of diopside, 1-8 parts of fused magnesite, 1-3 parts of red mud, 1-3 parts of nano aluminum hydroxide sol, 1-3 parts of silica powder and 1-3 parts of reinforced fiber. The thermal stability, compressive capacity, corrosion resistance, low cracking probability and other properties of the saggar are improved by optimizing the raw material composition of the saggar, so that the saggar has the advantages of long service life and light mass. The adopted raw materials are cheap, and the preparation technology is simple, green and environment-friendly and can be industrially implemented.

A low-cost long-service-lifetime ceramic saggar and a preparing method thereof

Abstract: The invention relates to a low-cost long-service-lifetime ceramic saggar and a preparing method thereof The ceramic saggar is used for sintering powder of a lithium compound Raw materials of a matrix of the ceramic saggar include, by weight, 20-25% of talcum, 15-20% of bauxitic rock, 5-35% of magnesium aluminate spinel having a size of 60-65 meshes, 15-45% of magnesium aluminate spinel having a size of 100-120 meshes, and 5-15% of cordierite Some natural ore materials which are the talcum and the bauxitic rock are adopted as raw materials to prepare the ceramic saggar, and the cost is saved by 1/3 or above The ceramic saggar prepared by the method can bear 50 times of thermal shock cycles without cracks, and has good thermal shock resistance The ceramic saggar does not react with synthetic raw materials of lithium ion battery cathode materials at 1000 DEG C, and has good corrosion resistance The service lifetime of the ceramic saggar can be 50 times or above

Thermal endurance studies on some fired saggar bodies

Abstract: Clay-based saggars, commonly used in the pottery industries in India, can not stand more than 5 to 6 thermal cycles. With a view to understanding the different parameters controlling the thermal shock resistance property of fired ceramics, bodies containing 50% cordierite grog—50% clay, 50% clay grog—50% clay and 50% clay grog—50% cordierite were prepared with variations in grog sizes. The strength was measured after each thermal cycle.From the studies, it could be inferred that by using preformed cordierite, much longer life would be assured and a method for evaluating thermal endurance of fired ceramics could be standardised.