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摘要:介紹了由材料性能試驗獲取的連續玻璃纖維增強復合材料的力學性能,包括沿各個不同方向的拉伸、壓縮、剪切、彎曲等性能參數,并依據這些性能參數,研究連續纖維增強玻璃鋼球閥的設計要點,導出其詳細設計公式。通過付材料組成及制備工藝進行改進,使得設計出的玻璃鋼球閥較國內普通的玻璃鋼球閥力學性能更為優秀。

關鍵詞玻璃鋼球閥連續玻璃纖維力學性能

1 概述

長期以來,在化工、石油、醫藥和食品等工業部門中,控制、輸送介質管路上的耐腐蝕閥門一般都采用不銹鋼、搪瓷、硅鐵、陶瓷和聚四氟乙烯等耐腐蝕材料,玻璃鋼是近 50 多年來發展迅速的一種復合材料。玻璃鋼是以玻璃纖維作增強材料、合成樹脂作粘結劑的增強塑料。隨著我國玻璃鋼事業的發展,作為塑料基的增強材料,已由玻璃纖維擴大到碳纖維、硼纖維、芳綸纖維、氧化鋁纖維和碳化硅纖維等。由于玻璃鋼相對其他材料具有更加優良的耐化學介質腐蝕性,玻璃鋼制管道和閥門已得到廣泛應用。一般的不銹鋼閥門在高溫鹽酸和酸堿交替條件下是不能使用的,在價格上玻璃鋼閥門只有相同尺寸不銹鋼閥門的 1/3 左右。

2 分析

muqianguoneiboligangqiufasuoyongcailiaodejitishuzhidaduocaiyonggaixingfenquanshuzhi,zengqiangxianweiyibandoucaiyongduanqiexianwei。zheyangdeboligangqiufazhinengzai pn6 degongkuangxiashiyong,dadaxianzhileyingyongfanwei,shiboligangyouliangdenaifushixingnengdebudaoyunfenfahui。weilemanzugexingyeriyizengchangdefamenshiyongxuqiuhegezhongyankukekeshiyonghuanjingdexuyao,bixuduixianyouboligangfamendecailiaojizhizuogongyijinxinggaijin,shiqishiyongyugenggaoyalifanwei。benwenshouxianduilianxubolixianweizengqiangboligangdecailiaolixuexingnengjinxingshiyanyanjiu,zaiyizhiboligangcailiaoxingnengcanshudejichushangdaochuboligangqiufadeshejiyaodian。

3 球閥材料選用

muqianguoneiyongyuzhizaofamendeboligangjiticailiaozhuyaoyihuanyanghefenquanliangleishuzhi(baokuoqigaixingpinzhong,ru:juyixichunsuodingquangaixingfenquan、erjiabenjiaquanshuzhigaixingfenquan、huanyangfenquandeng)weizhu,jucuboligangfahegaixingxiananshuzhiboligangfayeyoushaoliangshengchan。zuoweizengqiangcailiaodebolixianweiyexingshigeyi,danxianyumoyachengxinggongyi,zhuyaocaiyongduanqiexianweizengqiangxingshi。duanboxianzengqiangdefuhecailiaoxingnengbugao,gezhongboligangfadegongzuowendushangxianyibanwei 120~140℃,gongzuoyaliwei 0.8~1.0mpa。zhegegongzuoyalifanweijinxiangdangyudiyaqudegongzuoyalifanwei。

本文介紹的球閥用玻璃鋼是采用連續玻璃纖維布作增強體,用乙烯基醋樹脂(vinyl Ester Resins)作為基體材料的復合材料。連續玻璃纖維布增強的玻璃鋼具有抗沖擊強度好,蠕變小,耐熱性好,成型收縮小等優點。與玻璃鋼管道應用條件相類似,乙烯基樹脂的耐溫、耐腐蝕和加工性能好,常應用于化工設備的防腐保護。而采用連續玻璃纖維布取代傳統的短切纖維作為增強材料可以大大提高玻璃鋼中玻璃纖維的百分含量和增強效果。玻璃纖維是玻璃鋼的主要承力部分,玻璃纖維含量的提高將意味著玻璃鋼整體力學性能的提升。

4 材料力學性能試驗

4.1 shiyancailiao

shiyanyongcailiaojifuhecailiaohoubancaiyoulianxubolixianweizengqiangyixijishuzhizhicheng,xianweijiegouxingshiyuchengxinggongyiguochengyuxinxingboligangqiufazhizuosuocaiyongdelianxuzengqiangxianweijiegouhechengxinggongyitiaojianyizhi,xianweihanliangyexiangtong。weilebianyushiyanquedingmianwai(cengjian)jiazaitiaojianxiafuhecailiaodexingneng,zhizuodeyuancailiaobancaihouduwei 60mm。

4.2 shiyanguocheng

genjubiaozhunyaoqiudeshiyanyongshiyangdechicun,zhizuole 8 zu(meizu 5 ge)shiyang。

jiangshiyanggudingzai css dianziwannengshiyanjishang,yufuhechuanganqi、kongzhiqi、gonglvfangdaqihejisuanjidenglianjiegongtonggongzuo。yanzhumianneihemianwailianggefangxiang,fenbieqiege 5 genshiyang,gongqiege 10 genshiyang。shiyanzai 25℃ huanjingxiajinxing,meizushiyanzhongfuwuci。

(l)lashenshiyan

shiyanjiazaisuduwei 1mm/min,jiluxiangyingdeweiyiyizaihequxian,lianjieganyingqi,tongshimianneilashenshiyong yjy-13b yinshenjijiluduiyingdezaiheyibianxingquxian。tongguojisuanjiangjiludezaiheyibianxingquxianzhuanhuaweixiangyingdeyingliyiyingbianquxian,dedaofuhecailiaozongtidelashendanxingmolianghelashenqiangdu。

(2)yasuoshiyan

shiyanjiazaisuduwei 0.5mm/min,tongshijiluxiangyingdeweiyiyizaihequxian。yasuoshiyanjialiduanshiyizhijingwei 80mm deyuanzhuti,shiyangzhiyuyuanzhutidezhongxin,tongguoshiyanjihengliangdeshangxiayidongshixianduishiyangjiali。jiangjiludezaiheyibianxingquxianzhuanhuaweixiangyingdeyingliyiyingbianquxianhou,dedaofuhecailiaodeyasuodanxingmoliangheyasuoqiangdu。

(3)wanqushiyan

shiyanjiazaisuduwei 1mm/min,shiyangzuoweicengheliang,jinxinghengxiangsandianwanqushiyan,tongshijiluxiangyingdezhongxinweiyiyizaihequxian。tongguojisuanjiangjiludezaiheyibianxingquxianzhuanhuaweixiangyingdeyingliyiyingbianquxian,dedaofuhecailiaodewanqudanxingmolianghewanquqiangdu。

(4)jianqieshiyan

jiazaisuduwei 0.5mm/min,tongshijiluxiangyingdeweiyiyizaihequxian。tongguojisuanjiangjiludezaiheyibianxingquxianzhuanhuaweixiangyingdeyingliyiyingbianquxian,dedaofuhecailiaodejianqieqiangdu。

4.3 shiyanjieguo

congshiyancededelianxuxianweizengqiangfuhecailiaodemianneicailiaoxingnengjieguopingjunzhikeyikanchu,caiyonglianxuxianweizengqiangdeboligangdelixuexingnengjiaoyongduanqiexianweizengqiangdeboligangyouxianzhudetisheng,mianneilashenqiangduyuduanqiexianweizengqiangboliganglashenqiangduxiangbi,tigaoliangbeizhiduo。zheshiyouyuzuoweiboligangzengqiangcailiaodexianweishiboligangdezhuyaochenglibufen,caiyonglianxuxianweizengqiangyihou,xianweidebaifenhanliangkegaoda 70 %,erduanqiexianweizengqiangboligangdexianweihanliangjinyou 40% zuoyou。dangran,boligangdelixuexingnenghuanheqitayinsuyouguan,birushuzhidezhongleideng。

5 結語

tongguogaijinboligangdecailiaozuchenghezhizuogongyi,tishengleboligangdezhengtilixuexingneng,kefuleduanqiebolixianweizengqiangboligangcuixingdadequedian。jingketishiyan,an pn6 shejideboligangqiufazhishaokeyizai pn25 degongkuangxiaanquanshiyong。tuokuanleboligangqiufadeshiyongfanwei,shiboligangqiufadenaifushixingnengdeyichongfenfahui。


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