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產品特點圖

球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)出現為(wei)我國供(gong)(gong)水(shui)事(shi)(shi)業提(ti)供(gong)(gong)了(le)一(yi)種(zhong)性能(neng)的(de)(de)(de)(de)(de)新型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)。球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)定(ding)做(zuo)過(guo)程(cheng)是(shi)以鎂或稀土(tu)鎂分離(li)金球化(hua)(hua)劑在(zai)(zai)澆注(zhu)前(qian)參加鐵(tie)(tie)(tie)(tie)(tie)(tie)水(shui)中(zhong)(zhong)，使(shi)石墨(mo)球化(hua)(hua)，應(ying)力(li)(li)集(ji)中(zhong)(zhong)降低，使(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)具有強(qiang)(qiang)(qiang)度(du)大、延(yan)(yan)伸(shen)率(lv)高(gao)(gao)、耐(nai)沖擊、耐(nai)腐蝕(shi)、密封性好等(deng)(deng)(deng)優(you)點的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件(jian)；內壁(bi)采用(yong)水(shui)泥砂漿襯(chen)里，改善了(le)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)輸水(shui)環(huan)境、進步了(le)供(gong)(gong)水(shui)才能(neng)、降低了(le)能(neng)耗；球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)定(ding)做(zuo)時，管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)口采用(yong)柔性接(jie)(jie)口，且管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)自身(shen)具有較(jiao)大的(de)(de)(de)(de)(de)延(yan)(yan)伸(shen)率(lv)，使(shi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)柔性較(jiao)好，在(zai)(zai)埋(mai)地(di)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)中(zhong)(zhong)能(neng)與管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)四周(zhou)的(de)(de)(de)(de)(de)土(tu)體共同工作(zuo)，改善管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)(de)受力(li)(li)狀態(tai)，從而(er)進步了(le)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)網運轉的(de)(de)(de)(de)(de)牢靠性。因而(er)，目前(qian)我國供(gong)(gong)水(shui)行(xing)業通(tong)常(chang)采用(yong)球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。 離(li)心澆注(zhu)球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)應(ying)具備的(de)(de)(de)(de)(de)特性：高(gao)(gao)強(qiang)(qiang)(qiang)度(du)、抗腐蝕(shi)、耐(nai)高(gao)(gao)壓、事(shi)(shi)故(gu)率(lv)低、使(shi)用(yong)壽命長(chang)、高(gao)(gao)延(yan)(yan)伸(shen)率(lv)。 在(zai)(zai)供(gong)(gong)水(shui)輸氣管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)工程(cheng)中(zhong)(zhong)主(zhu)要(yao)使(shi)用(yong)的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)有水(shui)泥管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、離(li)心澆注(zhu)球墨(mo)鑄鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)和(he)(he)(he)鋼管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)(deng)(deng)。 鑄管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)體系中(zhong)(zhong)，球鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)強(qiang)(qiang)(qiang)度(du)是(shi)灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de) 3 倍，延(yan)(yan)伸(shen)率(lv)灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)為(wei) 0 而(er)球鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)達到(dao) 10%，抗腐蝕(shi)性鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan) 30倍，使(shi)用(yong)壽命長(chang)于(yu)灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，種(zhong)種(zhong)性能(neng)對比決定(ding)了(le)其對灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)替代(dai)性能(neng)。傳統的(de)(de)(de)(de)(de)灰(hui)鐵(tie)(tie)(tie)(tie)(tie)(tie)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)因其材(cai)質(zhi)較(jiao)脆，強(qiang)(qiang)(qiang)度(du)和(he)(he)(he)韌性較(jiao)低，采用(yong)機械(xie)性接(jie)(jie)口，使(shi)用(yong)時無(wu)法承(cheng)受較(jiao)高(gao)(gao)的(de)(de)(de)(de)(de)內、外(wai)載(zai)荷(he)，經常(chang)不可避(bi)免地(di)發(fa)生爆(bao)、豁、斷、裂等(deng)(deng)(deng)現象，遇到(dao)地(di)質(zhi)條件(jian)、外(wai)載(zai)條件(jian)變(bian)化(hua)(hua)時，容(rong)易發(fa)生管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)體脆斷、錯(cuo)位事(shi)(shi)故(gu)，并產生泄漏，現在(zai)(zai)已基本退出市場。傳統的(de)(de)(de)(de)(de)經濟(ji)學理論指出：消費者(zhe)(zhe)在(zai)(zai)進行(xing)消費時，一(yi)般會受樸素(su)的(de)(de)(de)(de)(de)等(deng)(deng)(deng)值觀念(nian)(即(ji)價格與產品的(de)(de)(de)(de)(de)價值相等(deng)(deng)(deng))的(de)(de)(de)(de)(de)影響(xiang)，產品的(de)(de)(de)(de)(de)品質(zhi)和(he)(he)(he)價值決定(ding)了(le)消費者(zhe)(zhe)對消費品的(de)(de)(de)(de)(de)取(qu)舍。

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