博文

目前显示的是 五月, 2021的博文

Usage and Dosage of Deslagging Agent for Aluminium Casting

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  The quality of deslagging agent for aluminium casting produced by our company has been proved by actual use, and the effect has reached the level of similar products abroad. Because all domestic raw materials are used for local production, the price is far lower than that of imported products. Since it was put into the market, it has been affirmed and trusted by domestic and foreign customers. The products are now exported to Korea, India, Japan, Thailand, Taiwan, and other countries and regions. Deslagging agent for aluminium casting  is simple and convenient to use. It is usually sprayed on the surface of molten metal after the casting process is filled with foam. It can also be used in an electric heating furnace. It should be sprinkled on the surface of the molten metal before the melting is finished and the slagging on the surface can be picked out by steel brazing. If the slag content is too much, it can be repeated once. The amount of slag used depends on the slag con...

How to use drossing fluxes for refining correctly

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  1. Performance characteristics: Drossing fluxes for refining has the functions of covering, slag removal, degassing, deterioration and refining, and can purify liquid aluminium. Aluminum impurities only need to be added once. The operation is simple. There is no severe reaction, no black aversion and no irritating odor in the process of aluminium reaction. Compared with other liquid aluminium solvents, the slag and degassing effect is better, which reduces the labor intensity of workers, improves the working environment and improves the working efficiency. Because  drossing fluxes for refining  have the function of modification and refinement, it can improve the structure, physical and mechanical properties, enhance the tensile strength, stabilize the elongation, improve the surface brightness and product qualification rate of aluminium products after application. 2. Scope of application It is suitable for the smelting of deep-processing raw materials such as aluminium ...

Characteristics, Usage and Process Parameters of No Sodium Refining Flux

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  No sodium refining flux is mainly used as a spraying device, with inert (nitrogen or argon) as the carrier, the powder flux is evenly fed into the melt to achieve the purification of the melt. It has the advantages of both gas refining and flux refining. 1. Product characteristics: The operation is simple and convenient, the labor intensity of workers is reduced, the utilization rate of flux is high, and the slag removal, gas removal and purification of the solution are effectively realized. 2.Usage and process parameters: Quantitative  no sodium refining flux  is loaded into the storage tank of the ejector in the refining temperature range (700-740 C). First, nitrogen (nitrogen pressure is 1.2-1.8 kg/mm), then the switch under the refining tank is opened. When no sodium refining flux is ejected from the refining iron pipe, the iron pipe is inserted into the liquid aluminium for horizontal movement, and the insertion depth should be 2.0% of the liquid aluminium depth at...

Furnace Cleaning Flux

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  Furnace Cleaning Flux is a kind of casting fluxes, the traditional furnace cleaning flux does not have a strong fluxing effect, which is insufficient and caused high-melting-point, high-viscosity sedimentation slag to be removed from the furnace bottom and the wall, therefore, the slag cleaning operation has high strength and poor cleaning effect, the use efficiency is low. The exothermic component is added to the flux, in the trial, the furnace temperature should be above 800 ° C, the furnace cleaning flux is sprayed on the furnace wall and the bottom of the furnace, the heat released during the reaction is dozens of times higher than the heat released by the existing furnace cleaning agent, which makes the temperature of the deposited slag quickly reach above 1000℃. The sodium fluoroaluminate in the flux and the strong oxidant fluorine are released in the reaction, it absorbs and dissolves aluminium and heavy metals in the deposited slag to form a gel-like substance with reduce...

Flux Knowledge

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  Why flux is in demand: The inclusions and gas are produced during the aluminium melting process. This will have a bad impact on the quality of ingots and other relative aluminum products. Oxides, carbides, borides are the commonly seen inclusions. Al₂O₃ and MgO greatly contaminates the molten aluminum seriously. The inclusions existed as gas carrier, increasing much more gas in aluminum alloy, cause the casting defects of porosity and slag inclusions.In additional, the impurities in the charge for aluminum smelting also can bring in certain harmful substances, for example, the alkali metal (Na, Ca, Li ) and so on. These harmful substances reduce the physical and chemical properties. Sodium can easily cause the “sodium brittle” if in the high magnesium aluminum alloy and reduce the fluidity of the molten aluminum. Thus,  the amounts of slag inclusions, gas, impurities existed in the molten aluminum are strictly be stipulated. To slove the above problems, Granular fused r...

The Introduction Of The Granulated Fused Refining Flux

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  Granulated Fused Refining Flux is a new type, high-efficiency and eco-friendly flux, it is used in aluminium smelting and casting, the main functions is removing the alkali metals, non-metallic inclusions and reduce the metal lost. The difference between traditional powder form flux and granulated fused refining flux are that the granulated fused refining fluxes has obvious technical advantage and economic benefits, at the same time, during the reaction with the aluminium melt, the granulated fused refining flux release no-toxic gas and less fume, which greatly improves the production environment. Based on the above advantages, granulated fused refining flux has attracted more and more attention in the aluminium smelting industry, and there is a tendency to gradually replace traditional powdery fluxes. The working of granulated fused refining flux: 1.The internal components of Granulated fused fluxes are evenly distributed; depend on the special characteristic of the granules and...