Perlite the deslagging agent (covering agent) is certain size granularity perlite ore, after special processing, sprinkle freshly baked steel (iron) water surface, the rapid expansion of the volume of 4-30 times, with slagging, heat and other characteristics, it is commonly known as slag agent instead of the foundry industry has been using the straw ashes or asbestos dust covering hot metal slag insulation material. casting production, opening up new areas of perlite applications.
Effect as using a method.
Slag and slag: Efficient Cleaner agent ladle, crucible furnace, electric furnace, reverberatory furnace. Artificial or gun evenly spreading on the surface of the melt, a little agitation to quickly gathered into the separation of slag and metal solution is easy to shell, stripped off the crust that you can get the pure solution, deducting castings gravel, and improve quality. Low cost, not burst splash, safe, reliable, easy to use. Sporadic slag for slag in the slag after casting ladle or furnace mouth, adding polyethylene slag agent, to form a strip floating dam, sticky block, eliminating the need for artificial slag, reduce labor intensity, improve labor efficiency.
Thermal insulation properties: low coefficient of the thermal conductivity of the efficient polyethylene slag-forming agent, a floating layer formed in the surface of the molten metal can prevent the solution of the heat conduction and thermal radiation, and a good insulation layer. This subcontract or the need for intermediate parking longer metal solution is an excellent insulation covering agent.
Environmental protection: efficient polyethylene slag agent molten metal pollution, no penetration, does not affect the mechanical properties of its chemical composition and casting. No smoke, dust and harmful gas pollution, cleaning up the environment, civilized production.
Dosage: efficient polyethylene slag agent is generally the amount of 1.5-2.0kg / T metal solution, specifically where appropriate, increase or decrease based on the size of the melt temperature, melting metal trash content.
Technical indicators
Appearance: light blue solid particles
Particle size: (1) 20-60 mesh> 95%, ② 18-40 mesh,> 95% ,50-70 mesh, 95% ,40-60 mesh> 95%
Bulk density: ~ 1.2g/cm ³
Ingredients: active ingredients> 99%
SiO2 :69-76%
AI2O3 :8-14%
3 Advantages
1, good insulation properties, hot metal cooling rate can be reduced by 20% -30% in the general case; 2 set of Java performance, easy slag favorable molten iron purification; help spheroidization stability, weakened Micron to improve spheroidization effect; 4, reduce environmental pollution, improve working conditions; economic effect can reduce the cost of 30%; 6, easy to use, which will help a lot to promote.