北海電熔鎂砂主(zhu)要(yao)有三(san)大種(zhong)類；一、普通電熔鎂砂，二、低硅高(gao)鈣(gai)電熔鎂砂，三(san)、大結(jie)晶電熔鎂砂；  

1、普通電熔鎂砂產品主要是選用47%以上含量菱鎂石或輕燒鎂砂為主要原料在電弧中高溫熔融而成。方鎂石晶粒大，結構致密，抗渣性強，高溫體積穩定性優越。電熔鎂砂的主要(yao)(yao)用(yong)途：電熔鎂砂主要(yao)(yao)是用(yong)于堿性(xing)磚、含碳制品和不定型(xing)耐火材料的良好原料。

 2、低(di)(di)硅(gui)高鈣電(dian)熔(rong)(rong)(rong)(rong)鎂(mei)(mei)(mei)砂產(chan)品主要(yao)是選用低(di)(di)硅(gui)菱鎂(mei)(mei)(mei)石為(wei)原(yuan)(yuan)料，經高溫電(dian)熔(rong)(rong)(rong)(rong)爐熔(rong)(rong)(rong)(rong)煉而(er)成的(de)。其特點是鈣硅(gui)比大于 2 ，晶粒發育充分，顆料體積密度大于 3.50g/cm3以上。低(di)(di)硅(gui)高鈣點熔(rong)(rong)(rong)(rong)鎂(mei)(mei)(mei)砂主要(yao)用于中頻感應電(dian)爐熔(rong)(rong)(rong)(rong)煉、高錳鋼(gang)、不銹鋼(gang)、高鑼鋼(gang)、堿性磚(zhuan)、含碳制品和不定型耐火材(cai)料的(de)良好原(yuan)(yuan)料。

3、大結(jie)(jie)晶(jing)(jing)電(dian)(dian)熔(rong)(rong)鎂(mei)(mei)砂(sha)(sha)生產(chan)工(gong)(gong)藝：大結(jie)(jie)晶(jing)(jing)電(dian)(dian)熔(rong)(rong)鎂(mei)(mei)砂(sha)(sha)主要(yao)是選用精選的(de)(de)特級天(tian)然菱鎂(mei)(mei)石或優質高(gao)(gao)純(chun)輕燒(shao)鎂(mei)(mei)顆粒，在電(dian)(dian)弧爐中熔(rong)(rong)融制(zhi)得。該(gai)產(chan)品具有(you)純(chun)度高(gao)(gao)，結(jie)(jie)晶(jing)(jing)粒大，結(jie)(jie)構致密(mi)，抗渣性(xing)強，熱震穩定性(xing)好，是一種(zhong)優良(liang)的(de)(de)高(gao)(gao)溫電(dian)(dian)氣絕(jue)緣材(cai)料，也(ye)是制(zhi)作鎂(mei)(mei)磚，鎂(mei)(mei)碳(tan)磚及不(bu)定型耐火材(cai)料的(de)(de)重(zhong)要(yao)原(yuan)料。廣泛(fan)應用于冶金、化工(gong)(gong)、國防、科(ke)研、航(hang)天(tian)航(hang)空、家用電(dian)(dian)器元件等。 大結(jie)(jie)晶(jing)(jing)電(dian)(dian)熔(rong)(rong)鎂(mei)(mei)砂(sha)(sha)產(chan)品特性(xing)：純(chun)度高(gao)(gao)、結(jie)(jie)晶(jing)(jing)粒大熔(rong)(rong)、點高(gao)(gao)結(jie)(jie)、構致密(mi)；熱震穩定性(xing)好；具有(you)良(liang)好的(de)(de)高(gao)(gao)溫抗折強度；具有(you)良(liang)好的(de)(de)抗渣性(xing)能和抗腐(fu)蝕性(xing)能；導(dao)熱性(xing)能強、高(gao)(gao)度絕(jue)緣。