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class="proBig"><div id="ub3swse" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112548828/9992145.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v8ahdzb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112548828/9992145.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8wab7qm" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售</p><p><span>***更新：</span>2020-06-06 14:02:20</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="c4km8hd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">鄒平縣奧翔硅碳制品有限公司</a></p><p><span>聯(lián)系人：</span>張洪恩</p><p><span>郵箱: </span>13884861614@163.com</p><p><span>電話: </span>13884861614</p><p><span>傳真: </span>0543_4534117</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0543-4533667</p><p><span>地址: </span>山東省鄒平市臨池鎮(zhèn)望京村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="bsgnl7n" class="page-proshow02"><p class="title">詳細說明</p><div id="2njl8xz" class="box"><p><p style="text-indent:25px">生產(chǎn)氮化硅結(jié)合碳化硅制品時候溫速度太快，山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售，造成坯體表面沉積的碳素不能被排除，嚴重者還會引起坯體表面隆起小泡。解決措施是： 1)制定合理的燒成溫度曲線，保證窯爐內(nèi)升溫速度符合坯體各階段所需要的熱量。 2)控制加煤量，保溫階段縮短還原氣氛的時間，山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售，加強坯體的前期氧化。 3)合理調(diào)試窯爐小閘板的開度，達到窯爐處于一個三種制度相互協(xié)調(diào)的平衡點。 4)燒窯工操作的控制，山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售，雖然窯爐設備的調(diào)試達到了比較好點，但三種制度都是通過操作來實現(xiàn)的。暗點就是分布于產(chǎn)品表面的黑、灰色小顆粒狀暗點。從表面看暗點與煙熏相伴而生，但又不同于煙熏，而且較煙熏難于控制。暗點缺點無論在煤燒隧道窯還是在燃氣隧道窯都有不同程度的發(fā)生。分析這種缺點的原因（排除泥、釉料配方的因素）：一是因為前期氧化氣氛不足；二是燒成溫度沒能達到瓷化所需要的溫度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112548828/9992145.jpg"></div><p> 其中碳化硅微粉的表面處理占有很重要的地位。氮化硅結(jié)合碳化硅制品生產(chǎn)工藝中，需要加入臨時的結(jié)合劑，結(jié)合劑的加入主要有兩大功效，一是可以幫助原料之間融合實現(xiàn)均質(zhì)體，改善原料顆粒表面的分散性，為胚體成型創(chuàng)建良好的條件；二是氮化硅結(jié)合碳化硅制品在干燥和燒成的工序中要面臨升溫的過程，而在高溫條件下，氮化硅結(jié)合碳化硅制品中的臨時結(jié)合劑會分解，氣態(tài)物質(zhì)揮發(fā)過程中給氮化硅結(jié)合碳化硅制品留下大量的網(wǎng)絡狀氣孔通道，不僅更有利于氮氣的充入，提高了硅粉和氮氣之間的反應效率，而且也能夠更有利于**終產(chǎn)品的穩(wěn)定性。臨時結(jié)合劑主要有：有機糊精、木質(zhì)素磺酸鈣以及德國司馬化工分散劑等等，目前行業(yè)內(nèi)對于臨時結(jié)合劑的添加量質(zhì)量百分比通常在5%以內(nèi)。氮化硅結(jié)合碳化硅制品涉及到的主要生產(chǎn)原料有：碳化硅、硅粉、氮氣等添加劑。不同于普通的氮化硅材料制品，氮化硅結(jié)合碳化硅制品所需要的原料必須具有更高的純度。碳化硅的純度應達到，硅粉的純度應達到99%以上，氮氣的純度應達到。除了原料的純度需要進行嚴格的控制之外，生產(chǎn)加工過程中還需要對原料的粒度和顆粒級配進行嚴格的控制。原料的粒度過高將會直接影響胚體成型的體積密度，造成胚體的致密性降低。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112773437/4048655.jpg"></div><p> “氮化硅結(jié)合碳化硅陶瓷加熱器保護套管”詳細介紹產(chǎn)品主要有陶瓷坩堝、陶瓷噴嘴、陶瓷升液管、加熱器保護套管等氮化硅超高溫材料制品，氮化硅超高溫材料制品具有耐高溫和低密度等特性。根據(jù)不同使用環(huán)境，可滿足1650℃以下長壽命、高溫防熱、高速剎車、核能和燃氣舵機等方面有十分廣闊的應用前景。長期以來，鋁合金等有色金屬的熔煉坩堝都是采用鑄鋼、鑄鐵和石墨等材料。但這兩種材料都存在明顯的不足之處：金屬坩堝在和鋁合金熔體接觸過程中會發(fā)生“滲鐵”現(xiàn)象，從而降低合金的冶金質(zhì)量；而石墨坩堝在使用過程中存在嚴重的氧化現(xiàn)象。氮化硅結(jié)合碳化硅是近年來發(fā)展起來的新型非氧化物高溫結(jié)構(gòu)陶瓷材料，具有耐高溫、抗氧化、抗腐蝕、與鋁合金不潤濕和惰性強等特點，在性能上明顯優(yōu)于氧化物陶瓷材料，因此在鋁合金、銅合金和鋅合金等有色金屬領(lǐng)域倍受關(guān)注。Si3N4陶瓷雖然具有“輕如鋁、強如鋼、硬若金剛石”等優(yōu)點，但若采用單一組元的氮化硅來制造所需的陶瓷部件，會存在制造成本高的問題。采用氮化硅結(jié)合碳化硅材料，即可發(fā)揮氮化硅易于燒結(jié)和抗熱震性好的特點，同時又能大幅度降低材料的制造成本。因此采用反映燒結(jié)氮化硅結(jié)合碳化硅的材料體系。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西鑄造碳化硅結(jié)合氮化硅批發(fā)零售" src="https://tyunfile.71360.com/UploadFile/zbwuzi/637238605112548828/7298124.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/169283.html</p></div></div></div></div></div><div id="7kbxbef" class="page-right twoColRt"><div id="k9h7rnz" class="box01 margin10 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