申請號: 201711023562.8

申請日: 2017.10.27

國(guo)家/省市:中國(guo)寧夏(64)

公開號: 107759238A

公開日: 2018.03.06

主分類號(hao):C04B 35/66(2006.01)

分類號: C04B 35/66(2006.01); C04B 35/573(2006.01); C04B 35/565(2006.01)

申請人: 中鋼寧夏耐研濱河新材料有限公司

發明人: 呂春(chun)江; 張海濤; 王波; 楊奎; 龔劍鋒

代理人: 周曉梅 孫彥虎

代(dai)理機(ji)構:寧(ning)夏(xia)合天律(lv)師事務所(64103)

申請人地址:寧夏回族自治(zhi)區石嘴山市平羅(luo)縣太沙工業園(yuan)區濱河(he)南路14號

摘要：一種氮化硅結合碳化硅耐火制品的(de)(de)(de)氮(dan)化(hua)燒(shao)成(cheng)(cheng)方(fang)法，包括低溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)壓(ya)(ya)制(zhi)、正常溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)壓(ya)(ya)制(zhi)、進(jin)(jin)爐(lu)、升溫(wen)(wen)(wen)(wen)燒(shao)成(cheng)(cheng)、冷卻出爐(lu)的(de)(de)(de)步(bu)驟，低溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)壓(ya)(ya)制(zhi)步(bu)驟為(wei)(wei)(wei)按(an)比例稱取(qu)碳化(hua)硅(gui)(gui)及(ji)粒度(du)(du)(du)不(bu)(bu)高于20um的(de)(de)(de)細硅(gui)(gui)粉(fen)為(wei)(wei)(wei)原料制(zhi)成(cheng)(cheng)低溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)，正常溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)壓(ya)(ya)制(zhi)為(wei)(wei)(wei)按(an)比例稱取(qu)碳化(hua)硅(gui)(gui)及(ji)粒度(du)(du)(du)為(wei)(wei)(wei)大于20um、且小于40um的(de)(de)(de)粗(cu)硅(gui)(gui)粉(fen)制(zhi)成(cheng)(cheng)正常溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)，進(jin)(jin)爐(lu)操(cao)作為(wei)(wei)(wei)將(jiang)低溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)送(song)入(ru)梭(suo)式(shi)氮(dan)化(hua)爐(lu)的(de)(de)(de)低溫(wen)(wen)(wen)(wen)區(qu)(qu)，將(jiang)正常溫(wen)(wen)(wen)(wen)區(qu)(qu)素(su)(su)坯(pi)(pi)(pi)送(song)入(ru)梭(suo)式(shi)氮(dan)化(hua)爐(lu)的(de)(de)(de)正常溫(wen)(wen)(wen)(wen)區(qu)(qu)，本發明方(fang)法采用傳統成(cheng)(cheng)熟的(de)(de)(de)氮(dan)化(hua)硅(gui)(gui)結合(he)碳化(hua)硅(gui)(gui)生產設備，通過合(he)理(li)分析爐(lu)內溫(wen)(wen)(wen)(wen)場分布情況，對應設置不(bu)(bu)同粒度(du)(du)(du)的(de)(de)(de)硅(gui)(gui)粉(fen)作為(wei)(wei)(wei)原材(cai)料，分別形成(cheng)(cheng)對應不(bu)(bu)同區(qu)(qu)域的(de)(de)(de)素(su)(su)坯(pi)(pi)(pi)，進(jin)(jin)而(er)使溫(wen)(wen)(wen)(wen)度(du)(du)(du)與素(su)(su)坯(pi)(pi)(pi)對應，從而(er)解決了熔硅(gui)(gui)和氮(dan)化(hua)反應不(bu)(bu)徹底的(de)(de)(de)問題，一舉兩(liang)得(de)。

主權利要求

一種氮(dan)(dan)(dan)化(hua)硅結(jie)合碳化(hua)硅耐(nai)火制品的(de)氮(dan)(dan)(dan)化(hua)燒成方法，其特征在于(yu)包括以下步(bu)驟(zou)：低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯壓制：按比例(li)(li)稱取(qu)(qu)碳化(hua)硅及粒(li)度不高于(yu)20um的(de)細硅粉(fen)為(wei)(wei)原料，混煉、振動(dong)成型，干(gan)燥后得到低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯；正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯壓制：按比例(li)(li)稱取(qu)(qu)碳化(hua)硅及粒(li)度為(wei)(wei)48-76um的(de)粗硅粉(fen)為(wei)(wei)原料，混煉、振動(dong)成型，干(gan)燥后得到正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯；進爐(lu)：將(jiang)低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯送(song)(song)入(ru)(ru)梭(suo)式(shi)(shi)氮(dan)(dan)(dan)化(hua)爐(lu)的(de)低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)，碼放整齊，將(jiang)正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)素(su)坯送(song)(song)入(ru)(ru)梭(suo)式(shi)(shi)氮(dan)(dan)(dan)化(hua)爐(lu)的(de)正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)，碼放整齊，低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)的(de)體積與正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)的(de)體積比為(wei)(wei)1/7-1/4，其中，低(di)(di)(di)(di)溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)為(wei)(wei)梭(suo)式(shi)(shi)氮(dan)(dan)(dan)化(hua)爐(lu)靠近兩(liang)個爐(lu)門和(he)爐(lu)底(di)的(de)兩(liang)個三角區(qu)(qu)(qu)域，正(zheng)常溫(wen)(wen)(wen)(wen)區(qu)(qu)(qu)為(wei)(wei)兩(liang)個三角區(qu)(qu)(qu)域之間的(de)區(qu)(qu)(qu)域；升(sheng)(sheng)溫(wen)(wen)(wen)(wen)燒成：將(jiang)梭(suo)式(shi)(shi)氮(dan)(dan)(dan)化(hua)爐(lu)送(song)(song)電臺(tai)階式(shi)(shi)升(sheng)(sheng)溫(wen)(wen)(wen)(wen)，同時向爐(lu)內(nei)流(liu)動(dong)通入(ru)(ru)氮(dan)(dan)(dan)氣，使(shi)爐(lu)內(nei)發生(sheng)氮(dan)(dan)(dan)化(hua)燒成反(fan)應；冷卻出(chu)爐(lu)。