?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 遵义钢筋混凝土排水管生技术现状及(qing)发展势 - 遵义?jng)井萍؜凝土有限公?/title> <meta name="Keywords" content="遵义钢筋混凝土排水管,排水?钢筋混凝土排水管"> <link href="/template/60032/css/style.css" rel="stylesheet" type="text/css" /> <link href="/template/60032/css/css_con.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="/template/60032/js/jquery-1.8.2.min.js"></script> <script src="/template/60032/js/jquery.min.js"></script> <script src="/template/60032/js/jquery.flexslider-min.js"></script> <script type="text/javascript" src="/template/60032/js/script.js"></script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://musichits.org/">国产高潮白浆一区二区在线_国产精品天天看片天天_黄色视频免费国产_国产一区二区国产精品</a></h1><div id="k2xkw" 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class="news_xaingxi"><h1>遵义钢筋混凝土排水管生技术现状及(qing)发展势</h1></div> <div id="q00awexu" class="news_author">来源Q?a href='http://musichits.org/news/62.html'>http://musichits.org/news/62.html</a> 发布日期Q?019-04-04 </div> <div id="q00awexu" class="news_content"> <span style="font-family:SimSun;font-size:16px;">    <a target="_blank" href="http://musichits.org/news/62.html"><b><a href="http://musichits.org/" target="_blank" style="font-weight:bold">遵义钢筋混凝土排水管</a></b>生技术现状及(qing)发展势</a>Q这几年,随着城镇规模的不断扩?污水ȝ工程的大力兴?国家投入?jin)大量资金用于?jng)政徏讑֒?jng)政攚w?<a href="http://musichits.org/psg/" target="_blank">排水?/a>行业的Ş势应该说非常?钢筋砼排水管的生产技术也随着材的量、质量、规格品U的发展而有?jin)限大的q步.在上世纪?0~60q代,我们的制工Z要以手工振捣工艺Z;60~70q代,d(j)工艺逐渐占主异地?当时制定的行业标准JC130-67是以离?j)工Zؓ(f)d订的;C(jin)70~80q代,(zhn)辊工艺开始ؓ(f)国h所接受,当时d(j)、?zhn)辊成Z个主要的制管工艺;?0q代后期开?随着攚w开?我国与国外先q国家制技术的交流日益频繁,q步从国外引q了(jin)十几条先q的径向挤压制管、芯模振动制工艺生产线,使排水管的生产技术有?jin)很大的飞?目前,可以说国外所有的制管工艺,我国都有?q在其他水惔制品行业是不多见?下面单介l一下各U制工艺的现状.</span><br /> <br /> <span style="font-family:SimSun;font-size:16px;">    (一)d(j)制管工艺</span><br /> <span style="font-family:SimSun;font-size:16px;">    d(j)制管的原理是在成型过E中,模q同砼在d(j)Z以一定的旋{速度转动,砼在d(j)力作用下分布于管模内表面,在高速离?j)?排出多余的水?从而Ş成密实的砼结?d(j)制管技术是澛_利亚Z漠在20世纪初发明的,所以国外将d(j)称作ؓ(f)休谟?׃q种技术发明早、设备简单、操作容?所以很早就得到?jin)普及(qing)应?国外象澳大利亚、日本、印度等,都将它作ZU主要的制管工艺,特别是日?d(j)工艺使用的相当普?对各U离?j)工艺制品都制定有相应的标?我国也是较早采用d(j)工艺的国?在我国的制杆、制桩、制行业都普遍采用q种工艺.排水管行业来说,几乎60%以上的企业有d(j)制管工艺生U?q几q?随着柔性接口管的大量?在国产装备中,d(j)工艺更加受到表睐.因ؓ(f)q种工艺制作的管子具有如下的优点:①外观质量好;②管体及(qing)接口寸正确;③管w强度高;④抗渗性能?但用q种工艺也存在一些问?如在d(j)成型完毕?体内部?x)存在较多的?既污染环?又造成原材料的费._附在内壁上的Q如不及(qing)时清?q(sh)(x)影响子的强度和内壁光滑?常规体清理出的浆有二U处理方?一是在浆中掺入粗l集?制成低水惔制品,但因次较低,销路不?二是Q液输入沉淀(wn)?l沉淀(wn)?上层清水排放?下面的沉淀(wn)物定期掏?但因水惔是水性胶凝材?掏挖很费时、费?国外有在d(j)g掺入各种i凝?使得浆中的水惔与之l合,_附在管壁内?而清水在d(j)l束后从体内排放掉,效果不错,但国外品h(hun)D?目前,国内也开始重视这一问题,q且有单位开始在研制适合中国国情的Q凝剂.另外,d(j)制度的自动控制也是必解决的,q关pd产品的质?q个问题在管桩离?j)机上已l解?在排水管d(j)Z也应该可以解?</span><br /> <div style="text-align:center;"> <span style="font-family:SimSun;font-size:16px;"></span><img src="/uploads/image/20190404/20190404170222_8684.jpg" alt="遵义钢筋混凝土排水管,排水?钢筋混凝土排水管" width="500" height="374" title="遵义钢筋混凝土排水管,排水?钢筋混凝土排水管" align="" /> </div> <span style="font-family:SimSun;font-size:16px;">    (?(zhn)辊制管工艺</span><br /> <span style="font-family:SimSun;font-size:16px;">    (zhn)辊法制是(zhn)置式辊轴辊压制的U?其原理ؓ(f):(zhn)置式的制管Z轴在甉|驱动?以一定的速度旋{,同时套入主u的管模靠挡圈与主轴间的摩擦力被带动旋?投入模中的砼料在离?j)力作用下均匀地分布于模内壁.当投入砼料的厚度过模的挡圈时,卛_到辊压力的作?砼在辊压力作用下逐渐密实.同时,׃D面ƈ不^?模旋{时会(x)产生振动,q种振动也有助于砼的密实.因此(zhn)辊成型是在d(j)力、辊压力、振动力的共同作用下使砼密实?q种制管技术是澛_利亚|克拉公怺上世U?0q代首先采用?该工Z因ؓ(f)其设备构造简?操作Ҏ(gu),且生产用的是干性砼,元Q?不污染环?生的管子外压强度高,所以从80q代引进开?很快得C(jin)普及(qing),目前我国大约有一半的制管企业有?zhn)辊工艺生产?但经q二十多q的生实践,</span><br /> <br /> <span style="font-family:SimSun;font-size:16px;">    (?立工径向挤压制管工艺</span><br /> <span style="font-family:SimSun;font-size:16px;">    立式径向挤压制管技术是以美国麦克拉肯公ؓ(f)代表的一U制技?它是靠旋转ƈ提升q动的辊压头,砼挤压密实.我国在上世纪80q代后期,上v水惔制管厂首先从国引进?jin)该制管装备和技?该制工艺的特点?①生产效率高.与离?j)、?zhn)辊制工艺相?单机生效率是较高的,如直径?00mm,?.5m的钢{砼?每根成型旉仅需2~3分钟;②占用管模少.׃生中用干性砼,故管子成型后可立卌?生占用模数量以能满周{为准,一般只?~5?③因为采用的是干性砼,故无浆产生,不污染环?④生产过E中,噪音很低,噪音值在标准允许范围?⑤管体与接口寸正确,适合做?200mm以下的柔性接口管.</span><br /> <br /> <span style="font-family:SimSun;font-size:16px;">    但立式径向挤压制对钢筋骨架要求较高,骨架必须采用滚焊成型.否则在成型时骨架?x)因受局部过大的扭力而破?且成套装备引qh(hun)格太?只有数企业能承?已有厂家研制国讑֤.</span><br /> <span style="font-family:SimSun;font-size:16px;">    从品用性能考虑,q年?׃生活污水中蛋白质的增加、合成洗涤剂的普遍用、工业废水的复杂?以及(qing)有些地区土壤介质本n的R蚀,普通砼排水道的腐蚀情况已是一个严重的问题.开发生产耐腐蚀钢筋砼排水管已被提上议事日程.苏州砼水泥制品研I为此做了(jin)大量研究工作,目前已成功地开发了(jin)FKJ耐腐蚀钢筋砼排水管.它是利用_煤灰、矿渣、外加剂作胶凝材料取代普通砼中的水惔,其水化物主要是沸石cL化硅铝酸?使FKJ砼在pHgؓ(f)2~13的环境中h比普通水泥砼好得多的耐腐蚀能力.很好地解决了(jin)生活污水、工业废水及(qing)土壤介质对砼的R蚀作用,大大提高?sh)(jin)管道的使用寿?值得推广.</span><br /> </div> <div id="q00awexu" class="pagess"> <ul> <div>上一?<a href="63.html"> 贵州水惔排污的安装要求和方?/a></div> <div>下一?<a href="61.html">卫生间排水管如何装修,q些l节一定要注意! </a></div> </ul> </div> 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