鉛膏的相組成與鉛粉、硫酸以及溫度之間的關(guān)系。和制鉛青時(shí)按程序加人:鉛粉、水、硫酸溶液。原則上加水快,加酸慢,酸15min 左右加完,和膏溫度控制在30~80 ℃ ,攪拌時(shí)間為40-SOmin 。和膏完畢后,要進(jìn)行工藝上要求的相關(guān)檢測。在30 ℃ 下進(jìn)行和裔,硫酸含量<8 %時(shí),主要形成3BS 相,3BS 隨酸含量增加而增加。IBS 相是酸含量約8 %時(shí)形成,酸含量超過8 %時(shí)形成IBS 。鉛青中少量存在斜方晶PbO 。
The lead cream mutually constitutes a relationship with of ceruse, sulfuric acid and temperature.And make a lead green add a person according to the procedure:Ceruse, water and sulfuric acid aqua.Filling with water in principle is quick, add sour slow, the sour 15 min is or so to finish adding, control in 30~80 ℃ with cream temperature, mix blend time is 40-SOmin.Carry on the related examination of the craft top request after completing with cream.Carry on under 30 ℃ and descendant, sulfuric acid content<8%, mainly form a 3 BSs mutually, the 3 BSs increases but increases with the sour content.IBS is mutually a sour content about 8% formation, sour content more than 8% form IBS.The lead is green medium the jot exist inclined square crystal PbO.
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