Widely used cold mash
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- Posttime：2018-09-07
As for the roasting process of steel in smelter, we need to use some additives. Cold mashing has been widely used on the lining of aluminium electrolyte cell for more than 30 years. It has the characteristics of environmental protection, small shrinkage rate of roasting, good compacting performance, etc. It can improve the performance of products by improving the technology and adding some substance to do research. Cold mashing is widely used.
A cathode paste that can be mashed at room temperature.The aggregate of this cathode paste is the same as that of ordinary cathode paste (also called hot mashing paste), such as general or electro-calcined anthracite, metallurgical coke, graphite crushing, etc.Low softening point of binder is 20 C±5 C.
Cold mashing paste has low softening point and high volatile content. It is packed in double layers of woven and plastic bags with a shelf life of 6-9 months.The construction temperature of cold mashing is 25-50 C. In summer, it can be constructed at ambient temperature. In spring and autumn, mashing can compensate for the effect of low ambient temperature.The stew paste is 40-50 C.Building stoves in winter in the north will affect the quality of masonry and the life of the grooves.
Before the 1970s, the hot mashing paste or aluminium electrolysis slot used in China's aluminium industry borrowed coarse seam paste, fine seam paste used in iron-making blast furnaces or paste made from petroleum coke as aggregate.Medium temperature coal asphalt is used as binder for construction with high temperature, poor environmental conditions, high labor intensity and difficult to guarantee construction quality.In the 1970s, a carbon material called cold paste, which softens at temperatures below 80 degrees C, was developed for use in iron-making blast furnaces and aluminium electrolytic tanks.With the enlargement of aluminium electrolytic cell and the update of cathode carbon block, people begin to attach importance to the matching use of cathode paste and cathode carbon block.Petroleum coke is eliminated as the main raw material for cold mashing. Anthracite is generally calcined by ordinary calcination and high temperature electro-calcination, with a small amount of graphite added.Cold mashing has become a special material for aluminium electrolytic cells, which is widely used throughout the country and is being popularized to large-scale slots.The following table shows the quality of cold mash.Titanium boride composite cold mashing paste was developed in combination with titanium boride composite cathode block.The commonly used recipes for cold mashing are as follows: (1) binder.It accounts for 15%~16% of the total paste.Softening point 20 C±5 C.Its composition is as follows:1.70% mesothermal coal bitumen±2% anthracene oil 30%±2%;(2) Medium temperature coal tar bitumen 40%±2%+coal tar 50%±2%.
Note Above is provided by Luoyang Longxin Furnace Co., Ltd. Detailed landing addresshttp://www.lylongxin.com
A cathode paste that can be mashed at room temperature.The aggregate of this cathode paste is the same as that of ordinary cathode paste (also called hot mashing paste), such as general or electro-calcined anthracite, metallurgical coke, graphite crushing, etc.Low softening point of binder is 20 C±5 C.
Cold mashing paste has low softening point and high volatile content. It is packed in double layers of woven and plastic bags with a shelf life of 6-9 months.The construction temperature of cold mashing is 25-50 C. In summer, it can be constructed at ambient temperature. In spring and autumn, mashing can compensate for the effect of low ambient temperature.The stew paste is 40-50 C.Building stoves in winter in the north will affect the quality of masonry and the life of the grooves.
Before the 1970s, the hot mashing paste or aluminium electrolysis slot used in China's aluminium industry borrowed coarse seam paste, fine seam paste used in iron-making blast furnaces or paste made from petroleum coke as aggregate.Medium temperature coal asphalt is used as binder for construction with high temperature, poor environmental conditions, high labor intensity and difficult to guarantee construction quality.In the 1970s, a carbon material called cold paste, which softens at temperatures below 80 degrees C, was developed for use in iron-making blast furnaces and aluminium electrolytic tanks.With the enlargement of aluminium electrolytic cell and the update of cathode carbon block, people begin to attach importance to the matching use of cathode paste and cathode carbon block.Petroleum coke is eliminated as the main raw material for cold mashing. Anthracite is generally calcined by ordinary calcination and high temperature electro-calcination, with a small amount of graphite added.Cold mashing has become a special material for aluminium electrolytic cells, which is widely used throughout the country and is being popularized to large-scale slots.The following table shows the quality of cold mash.Titanium boride composite cold mashing paste was developed in combination with titanium boride composite cathode block.The commonly used recipes for cold mashing are as follows: (1) binder.It accounts for 15%~16% of the total paste.Softening point 20 C±5 C.Its composition is as follows:1.70% mesothermal coal bitumen±2% anthracene oil 30%±2%;(2) Medium temperature coal tar bitumen 40%±2%+coal tar 50%±2%.
Note Above is provided by Luoyang Longxin Furnace Co., Ltd. Detailed landing addresshttp://www.lylongxin.com
