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电子氮化铝陶瓷生产流程基础知识

新闻来源: 发布日期:2018-01-10 11:07:29发布人:佳日丰小张

一、流延工艺法

流延方法就是,在粉料中加入粘合剂、溶剂等,经球磨、过滤后进行真空脱泡并把粘度控制在一定范围。这种有粘性的浆料在恒定的压力下,通过浆料刮刀与涂有有机硅的以一定速度运行的膜带之间的缝隙而流粘在膜带上,经连续烘干、切边,在流延机机尾把坯带与膜带进行分离(或不分离),分别卷绕得到生坯带的方法。然后再进入下一道工序,如切割、叠层、印刷、烧结等做成所需产品,而形成的流延制备的工艺。

流延工艺中,最关键的是浆料的制备和流延成型工艺。

二、流延的应用

kpl竞猜平台 LIUYANFAZHIBEITAOCIBOPIANDEGONGCHENGLIUCHENGTU。

通过球磨等一系列工序除去浆料中的有机或无机残渣即可得到稳定均匀的流延浆料,将制备好的流延浆料在流延机上流延成型,经干燥、裁剪、脱脂和烧结即可完成。

三、浆料中常用的添加剂介绍

kpl竞猜平台 1.RONGJIXUANZERONGJIZHUYAOKAOLVDEYINSUYOU:

(1)BIXUNENGRONGJIEQITATIANJIACHENGFEN,RUFENSANJI、ZHANJIEJIHESUXINGJIDENG;

(2)ZAILIAOJIANGZHONGJUYOUYIDINGDEHUAXUEWENDINGXING,BUYUFENLIAOFASHENGHUAXUEFANYING;

(3)YIYUHUIFAYUSHAOCHU;

kpl竞猜平台 (4)SHIYONGANQUAN、WEISHENGHEDUIHUANJINGWURANSHAO。

ZUICHANGYONGDERONGJIFENWEIYOUJIRONGJIYUSHUILIANGLEI。YOUJIRONGJISUODEDELIAOJIANGZHANDUDI,RONGJIHUIFAKUAI,GANZAOSHIJIANDUAN,SUOYILIUYANFAZHIMOZHONGSHIYONGYOUJIRONGJIJIAODUO。CHANGYONGDEYOUYICHUN、JIAYITONG、SANLVYIXI、JIABEN、ERJIABENDENG。DANYOUJIRONGJIYOUYIRANHEYOUDUDEQUEDIAN。

SHUIZUORONGJIZEYOUCHENGBENDI、SHIYONGANQUAN、WEISHENGHEBIANYUDAGUIMOSHENGCHANDENGYOUDIAN,QIQUEDIANSHI:

kpl竞猜平台 (1)DUIFENLIAOKELIDESHIRUNXINGNENGJIAOCHA、HUIFAMANHEGANZAOSHIJIANZHANG;

kpl竞猜平台 (2)LIAOJIANGCHUQIKUNNAN,QIPAODECUNZAIHUIYINGXIANGSUPEIMODEZHILIANG;

kpl竞猜平台 (3)SHUIJILIAOJIANGSUOYONGZHANJIEJIDUOWEIRUZHUANGYE,SHICHANGSHANGCHANPINJIAOSHAO,SHIZHANJIEJIDEXUANZESHOUDAOXIANZHI。RONGJIDUIFENLIAODESHIRUNXINGNENGZHUYAOYUQIBIAOMIANZHANGLIYOUGUAN,BIAOMIANZHANGLIYUEXIAO,DUIFENLIAOKELIDESHIRUNXINGNENGYUEHAO。YOUJIRONGJIDEBIAOMIANZHANGLIBISHUIYAODIDEDUO,SUOYIQISHIRUNXINGNENGBISHUIHAO。HUNHERONGJIDEBIAOMIANZHANGLIHEJIEDIANCHANGSHUDENGZONGHEXINGNENGJIAODANYIZUFENYAOHAO,QIEFEIDIANDI,DUIFENSANJI、ZHANJIEJIHESUXINGJIDERONGJIEXINGNENGYEJIAOJIA。WEIQUEBAOGANZAOGUOCHENGZHONGTONGSHIHUIFA,LIUYANJIANGZHONGCHANGYONGERYUANGONGFEIHUNHEWU。ZUICHANGYONGDEYOUYICHUN/JIAYICHUN、YICHUN/SANLVYIXI、YICHUN/SHUIHESANLVYIXI/JIAYITONGDENG。

2.分散剂  

kpl竞猜平台 FENLIAOZAILIUYANJIANGLIAOZHONGDEFENSANJUNYUNXINGZHIJIEYINGXIANGZHESUPEIMODEZHILIANG,CONGERYINGXIANGCAILIAODEZHIMIXING、QIKONGLVHELIXUEXINGNENGDENGYIXILIETEXING。LIUYANFAZHIMOZHONGCHANGYONGDEFENSANJIYOUFEILIZI、YINLIZI、YANGLIZIHELIANGXINGLIZI4 ZHONGLEIXING。YIBANSHUOLAI,YINLIZIBIAOMIANHUOXINGJIZHUYAOYONGYUKELIBIAOMIANDAIZHENGDIANDEZHONGXINGHUORUOJIANXINGLIAOJIANG,ERYANGLIZIXINGBIAOMIANHUOXINGJIZHUYAOYONGYUKELIBIAOMIANDAIFUDIANDEZHONGXINGHUORUOSUANXINGLIAOJIANG。Mikeska DENG,TONGGUODUI70 ZHONGSHANGYONGFENSANJIFENSANXIAOGUODESHIYANYANJIUBIAOMING,LINSUANZHI、YIYANGJIHUAHEWUHEXIANYUYOUZAITAOCIFENLIAOJIANGYEZHONGDEFENSANXIAOGUOZUIJIA。QIZHONGQIANMIAN2 ZHONGSHIYINLIZIXINGBIAOMIANHUOJI,ERXIANYUYOUBUSHUYUBIAOMIANHUOXINGJI。

3.粘结剂与增塑剂   

WEILEYUJIBANCAILIAOFENLIHENAFANGFANGBIAN,LIUYANMOBIXUJUYOUYIDINGDEQIANGDU、RENXINGHEYANZHANXING。WEICI,ZAILIAOJIANGZHONGXUJIARUZHANJIEJIHESUXINGJI。

选择粘结剂应考虑的因素有:

(1)SUPEIMODEHOUDU;

(2)SUOXUANRONGJILEIXINGJIPIPEIXING,YOULIYURONGJIHUIFAHEBUCHANSHENGQIPAO;

kpl竞猜平台 (3)YINGYISHAOCHU,BULIUYOUCANYUWU;

(4)NENGQIDAOWENDINGLIAOJIANGHEYIZHIKELICHENJIANGDEZUOYONG;

(5)YAOYOUJIAODIDESUXINGZHUANBIANWENDU,YIQUEBAOZAISHIWENXIABUFASHENGNINGJIE;

kpl竞猜平台 (6)KAOLVSUOYONGJIBANCAILIAODEXINGZHI,YAOBUXIANGZHANJIEHEYIYUFENLI。ZHANJIEJIANQIZUOYONGDEGUANNENGTUANLEIXINGFENWEIFEILIZI、YINLIZIHEYANGLIZI3 LEI。ZAILIUYANGONGYIZHONGSHIYONGZUIDUODESHIYINLIZIYUFEILIZIXINGDEZHANJIEJI,ZHUYAOYOUYIXIJIYUBINGXIJI2 LEI。ZAIFEISHUIJILIAOJIANGZHONGCHANGYONGDEZHANJIEJIYOUPVB ,JUBINGXISUANJIAZHIHEYIJIXIANWEISUDENG。ZAISHUIJIJIEZHIZHONGCHANGYONGDEZHANJIEJIYOUJUYIXICHUN、BINGXISUANRUJIHEJUBINGXISUANANYANDENG。SUXINGJIZAILIAOJIANGZHONGDEZHUYAOZUOYONGSHIJIANGDIZHANJIEJIDESUXIANWENDUTg,SHITg DADAOSHIWENHUOSHIWENYIXIA,CONGERQUEBAOZHANJIEJIZAISHIWENSHIJUYOUHAODELIUDONGXINGHEBUFASHENGNINGJIE。LINGWAI,SUXINGJIDUIFENTIKELIHAIQIRUNHUAHEQIAOLIANZUOYONG,YOULIYULIAOJIANGDEFENSANWENDING,DANJIARUSUXINGJIHUISHISUPEIMODEQIANGDUJIANGDI。ZUICHANGYONGDESUXINGJIYOUJUYIERCHUN、LINBENERJIASUANZHI、YIERCHUNDENG,TAMENDUILIAOJIANGLIUBIANXINGDEYINGXIANGZUOYONGBUSHENXIANGTONG。LINBENERJIASUANZHINENGRUNHUAFENTIKELI,JIANGDILIAOJIANGZHANDU,ERJUYIERCHUNZEZAIFENTIKELIJIANXINGCHENGYOUJIQIAO,NENGZENGJIALIAOJIANGDEZHANDU。

4.QITATIANJIAJI  

kpl竞猜平台 CIWAI,ZAILIUYANJIANGLIAODEZHIBEIGUOCHENGZHONG,HAIJINGCHANGJIARENYIXIEGONGNENGXINGDEYOUJIWUTIANJIAJI,CHANSHENGYIXIETESHUDEJIANGLIAOXINGZHIHUOLIXIANGDEGANDAIXINGZHI。

除泡剂:主要在高分子溶液(PVA )或高分子分散体系易产生有害的稳定泡沫的水介质中有用,特别是搅拌过程中(如用特殊的蜡,或用真空搅拌)。防止泡沫产生要比消除泡沫有效得多。常用的除泡方法是机械法加上化学法。即在浆料中加人除泡剂,然后进行真空搅拌除气。常用的除泡剂是正丁醇、乙二醇各半的混合液。

润湿剂:主要是溶于液相的表面活化剂,用来减小液体表面张力(特别是水),提高它们对粉料和被作用物的润湿性。因此,表面活性剂也被用作分散剂。

均化剂:kpl竞猜平台用于增加组分的相互溶解性(如环己酮), 由此防止干燥时起皮。它们也增加基片的密度和拉伸强度。

控流剂:kpl竞猜平台有时加人少量来防止基片的表面干燥太快,防止开裂。絮凝剂:防止分散体系形成过高密度沉淀的试剂。 

四、有关流延成型

kpl竞猜平台 LIUYANSHIYIXIANGXIANGDANGJINGMIDEGONGYI,DUIYULIUYANHOUDECHANPINZHILIANGYAOQIUSHIFENYANGE,YIXIAJIDIANKEGONGCANKAO:

kpl竞猜平台 1.GUADAODEBIAOMIANGUANGJIEDULIUYANGUADAOYIBANYONGGONGJUGANGZHICHENG,TADENAIMOXINGHAO,SHIYONGSHOUMINGZHANG,DANXUZHUYIBAOYANG,MEICISHIYONGHOUBIXUQINGXIGANJING,BINGFANGZHIYINGWUGUASHANGBIAOMIAN,SHIGUADAOBAOCHIGUANGHUAPINGZHENG。GUANGHUAPINGZHENGDEGUADAOSHIHUODEHOUDUJUNYUN,BIAOMIANGUANGHUAMODAIDEGUANJIAN。

2.JIANGLIAOCAOYEMIANGAODUJIANGLIAOCAOYEMIANGAODUTIGAO,JIANGLIAOCAONEIDEYALIZENGDA,SHIJIANGLIAOTONGGUOGUADAOJIANXIDELIURUSUDUZENGJIA,LIUYANMOHOUDUZENGJIA,YINCIWEICHIYEMIANGAODUJUNHENGYIZHIDUIKONGZHILIUYANMOHOUDUJUNYUNXINGSHIFENZHONGYAO。DAXINGDELIUYANSHEBEIZHONGTONGCHANGXUYAODAIYOUYEMIANCHUANGANQI,KONGZHIGONGJIANGFAMEN,KONGZHIYEMIANGAODUBIANHUAZAIZUIXIAODEFUDU。

3.JIANGLIAODEJUNYUNXINGLIUYANYONGJIANGLIAOBIXUCHONGFENFENSANJUNYUN,DANGYOUWEIFENSANHAODEYINGKUAI、TUANJUTIYOUWEINENGGUOLVDIAOSHIMODAISHANGJIUHUICHANSHENGBADOUZHUANGQUEXIAN,HUOYINGANZAOSHAOCHENGSHOUSUOBUTONGCHANSHENGAOXIAN。YINCIBIXUZHONGSHIJIANGLIAODEZHIBEI,ZAISHIYONGQIANBIXUGUOSHAIQUCHUZHEIXIEYINGKUAIHETUANJUTI。RUGUOJIANGLIAOZHONGYOUQIPAO,LIUYANQIANBIXUJINXINGCHUPAOCHULI。

kpl竞猜平台 4.LIUYANHOUDUGUADAOJIANXIDEHOUDUYUSHIJIHONGGANCHENGXINGHOUDU,BUHUIYIZHI,YINGWEIZAIHONGGANGUOCHENGZHONGYOURONGJIDENGDEHUIFA,ZAIJIANGLIAOWENDING,LIUYANQITATIAOJIANRULIUSU,GANZAOWENDUYIDINGDEQINGKUANGXIA,TONGCHANGHUIYOUYIGEWENDINGDEBILI。YIBANKEYITONGGUOLIUYANSHIYANDEDAOYOUXIAODECANSHU。

5.ZHIDINGBINGZHIXINGZUIJIADEGANZAOGONGYILIUYANCHUDEJIANGLIAOMOJINGGUOGANZAOCAINENGCONGJIBANSHANGBOLUOXIALAI。YINCI,ZHIDINGHESHIDEGANZAOGONGYISHIHUODEGAOZHILIANGMODAIDEZHONGYAOYINSU。RUGUOGANZAOGONGYIZHIDINGBUDANG,LIUYANMOCHANGHUICHUXIANQIPAO、ZHENKONG、ZHOUWEN、GANLIE,SHENZHIBUYICONGJIBANSHANGTUOLUODENGQUEXIAN。ZHIDINGGANZAOGONGYIDEYUANZESHI:QUEBAORONGJIHUANMANFAHUI,SHIMOCENGNEIRONGJIDEKUOSANSUDUYUBIAOMIANHUIFASUDUQUYUYIZHI,FANGZHIBIAOMIANGUOZAOYINGHUAERYINQIDEHOUQIKAILIE、QIPAO、ZHOUWENDENGQUEXIAN。

kpl竞猜平台 WU、 LIUYANGONGYIDEYOUSHI

kpl竞猜平台 ZIDONGHUACHENGDUGAO,SHENGCHANXIAOLVGAO。CHANPINZHILIANGHAO,HEGELVGAO。SHIYINGSHENGCHANDAMIANJIJIPIANHEDUOYUANHUAJIPIAN。


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