Qualitative drainage of steel bag chromium is arenaceous

Drainage is arenaceous be fill of mouth of water of steel bag bottom medicinal powder shape makings, every use one stuff, although not be to repair,expect, also have kind of place that be the same as. The technical requirement with arenaceous drainage is, when filling molten steel for long high blandly, its agglomeration layer is not thick, also do not follow molten steel rise, medium, upside is taken to transfer, bottom still holds raw material position in, facilitate leave automatically irrigate stream drip molten steel. Its are main breed has silicon qualitative, MgO-C qualitative, Cr2O3-C qualitative, MgO-CaO is qualitative, magnesian olivine is qualitative, magnesian wait character with Al2O3-ZrO2-C character. Be contain magnesium or contain the function with chromic qualitative arenaceous drainage.

Drainage arenaceous material chooses character, it is a basis steel of steel bag size, smelt is planted and temperature, fine circumstance and Lian Zhu are decided than waiting for a condition, should ensure commonly irrigate steel irrigate rate achieve 90% above. After when drainage arenaceous material decides character, its grain composition is very important. For example. The grain grading of armour factory is 3 ～ 2mm for 20 ～ 25% , of 2 ～ 1mm for 70 ～ 75% , 55% what the is factory of second of 4 ～ 6%; grading of 1 ～ 0.5mm is 3 ～ 1mm, 45% of 1 ～ 0.5mm. In the meantime, making up when drainage is arenaceous, all add commonly add slippery agent and agglomeration conditioning agent, with period achieve fill close-grained with the purpose with agglomeration appropriate layer. This job mixes next those who carry out experience is directive undertaking in theory of fireproof data base, just can achieve favorable use result. Flourish Cheng Naicai regards manufacturer of professional tall aluminous brick as the home, pay attention to the job after the carry out before the client's carry out, let an user feel choice Rong Cheng chooses to be at ease, think user place thinks, urgent user place is urgent, solution user place is bad, to convoy escorts the Emperor on the way that the user develops in advancement.