• 
• 
• 
• 
• 

格瑞球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵的(de)(de)特(te)點(dian)(dian)和(he)(he)應用(yong)(yong)(yong)市場 球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵(cast iron)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)的(de)(de)破壞(vandalism)主要(yao)(yao)是(shi)鑷子的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)體和(he)(he)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)套(tao)接字(zi)部分斷(duan)裂（fracture)。球(qiu)(qiu)(qiu)墨(mo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)球(qiu)(qiu)(qiu)墨(mo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)有鐵的(de)(de)本(ben)質(zhi)(zhi)(zhi)、鋼(gang)的(de)(de)性(xing)(xing)(xing)能球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)中石墨(mo)是(shi)以(yi)球(qiu)(qiu)(qiu)狀形態(tai)存在的(de)(de)，一般石墨(mo)的(de)(de)大小為(wei)6-7級。質(zhi)(zhi)(zhi)量上(shang)要(yao)(yao)求(qiu)鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)球(qiu)(qiu)(qiu)化(hua)等級控制為(wei)1-3級，球(qiu)(qiu)(qiu)化(hua)率(lv)(lv)≥80%，因而材料(liao)本(ben)身的(de)(de)機械性(xing)(xing)(xing)能得到了較好(hao)改善，具有鐵的(de)(de)本(ben)質(zhi)(zhi)(zhi)、鋼(gang)的(de)(de)性(xing)(xing)(xing)能。球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵排(pai)水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)輕度高(gao)、壁薄(bo)、耐壓、耐沖(chong)擊、耐腐蝕、耐抗震等性(xing)(xing)(xing)能。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)接口采(cai)用(yong)(yong)(yong)柔(rou)性(xing)(xing)(xing)接口，而且還有一定的(de)(de)延伸率(lv)(lv)及偏轉角。他具備生鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)(he)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材質(zhi)(zhi)(zhi)的(de)(de)優(you)點(dian)(dian)，避免了鐵和(he)(he)鋼(gang)的(de)(de)缺點(dian)(dian)。球(qiu)(qiu)(qiu)磨鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)鑄(zhu)(zhu)(zhu)鐵的(de)(de)一種，是(shi)一種鐵、碳和(he)(he)硅的(de)(de)合金具有鐵的(de)(de)本(ben)質(zhi)(zhi)(zhi)、鋼(gang)的(de)(de)性(xing)(xing)(xing)能、防腐性(xing)(xing)(xing)能優(you)異、延展(zhan)性(xing)(xing)(xing)能好(hao)、安裝簡易，主要(yao)(yao)用(yong)(yong)(yong)于(yu)市政(zheng)工礦企業給(gei)水(shui)(shui)(shui)、輸(shu)氣等。球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)使(shi)用(yong)(yong)(yong)18號(hao)以(yi)上(shang)的(de)(de)鑄(zhu)(zhu)(zhu)造鐵水(shui)(shui)(shui)經(jing)添加(jia)球(qiu)(qiu)(qiu)化(hua)劑后，經(jing)過(guo)離心(xin)球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)鐵機高(gao)速(su)離心(xin)鑄(zhu)(zhu)(zhu)造成(cheng)的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材，簡稱為(wei)球(qiu)(qiu)(qiu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、球(qiu)(qiu)(qiu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)(he)球(qiu)(qiu)(qiu)墨(mo)鑄(zhu)(zhu)(zhu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等。主要(yao)(yao)用(yong)(yong)(yong)于(yu)自來水(shui)(shui)(shui)的(de)(de)輸(shu)送(song)，是(shi)自來水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)理想的(de)(de)選擇用(yong)(yong)(yong)料(liao)。鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)(yong)鑄(zhu)(zhu)(zhu)鐵澆鑄(zhu)(zhu)(zhu)成(cheng)型的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)子。鑄(zhu)(zhu)(zhu)鐵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)(yong)(yong)于(yu)給(gei)水(shui)(shui)(shui)、排(pai)水(shui)(shui)(shui)和(he)(he)煤氣輸(shu)送(song)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線，它包括鑄(zhu)(zhu)(zhu)鐵直管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)(he)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)件。