?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 钢筋混凝土排水管的关键控制点 - 遵义?jng)井萍؜凝土有限公?/title> <meta name="Keywords" content=""> <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" /> <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://www.bjjhd.cn/">日本成人精品视频网站一区,欧美久久久久久久一区二区三区,欧美亚洲综合在线一区,亚洲一级精品视频在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><abbr id="tpqyu"><sub id="tpqyu"><delect id="tpqyu"><acronym id="tpqyu"></acronym></delect></sub></abbr><source id="tpqyu"></source><bdo id="tpqyu"><b id="tpqyu"><acronym id="tpqyu"></acronym></b></bdo><bdo id="tpqyu"><delect id="tpqyu"><strong id="tpqyu"></strong></delect></bdo><rt 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id="bwt5nre" class="news_xaingxi"><h1>钢筋混凝土排水管的关键控制点</h1></div> <div id="wvlgaz6" class="news_author">来源Q?a href='http://www.bjjhd.cn/news/228.html'>http://www.bjjhd.cn/news/228.html</a> 发布日期Q?023-06-25 </div> <div id="aku52ib" class="news_content"> <p> <a target="_blank" href="http://www.bjjhd.cn/news/228.html"><a href="http://www.bjjhd.cn/gjhntpsg/" target="_blank">钢筋混凝土排水管</a>的关键控制点</a>,内衬PVC钢筋<a href="http://www.bjjhd.cn/supply/35.html" target="_blank">混凝土排水管</a>是一U新型复?a href="http://www.bjjhd.cn/psg/" target="_blank">排水?/a>材,内衬PVC是指Ҏ(gu)聚氯乙烯,材l构q体及(qing)内衬层两部分l成Q其外观质量要求材外表面应qx(chng)Q应无粘皮、麻面、蜂H、塌落、露{、空鼓等现象Q内表面应光z,内衬Ҏ(gu)PVC层应无破损或出现针孔现象Q管子外表面不允许有裂缝Q但表面龟裂和砂层的干~裂~不在此限?</p> <p> 子制作混凝土强度要求:(x)普通开挖施工法用؜凝土的混凝土强度等U不应低于C50;进施工法用钢筋混凝土管的؜凝土强度{不应低于C55。؜凝土的抗渗等U不应低于S6Q品出厂时混凝土强度不应低于设计强度的90%?</p> <p> 内衬层应采用固定键镶嵌入体内壁上,固定键应与管体紧密连接。固定键从؜凝土脱出的拉拔强度值应不低?4N/㎜?</p> <p> 针对目前生的内衬PVC企口,说一下生产时的关键控制点Q?</p> <p> 1.PVC胶片处理 </p> <p> 1.1胶片定尺(周长)按芯模下端周长即可,焊接时搭?0㎜,也就是说Q胶片要比芯模周长小20㎜,q样才能保证胶片紧芯模Q生产完的管子不?x)出现胶片vq象,定尺时必M证胶片铺q_ƈ处于柔Y状态?</p> <p> 1.2U向定尺应保证T键长度ؓ(f)2500?因套入芯模后?x)羃?0?Q无键部分不30㎜即可,应保证套入芯模后处于下端的一边^齐,无长短不齐现象,才能保证下端不漏或漏?</p> <p> 1.3搭接焊接部分应保证宽度ؓ(f)20㎜,焊接应饱满、^_(d)无开焊、漏焊、炭?烧焦)现象Q焊接前应充分考虑T键的影响Q应保证T键中?j)与T键中?j)的距离不大?7㎜,当大?7㎜时Q绝对不能削去T键?</p> <p> 2.芯模处理 </p> <p> 2.1在芯模下端和中部位置均匀地钻取几个汽孔,在脱模时先通入I气Qv到减M用?</p> <p> 2.2套入胶片前应对芯模进行处理,激振环上的U灰清理q净Q芯模上q面的干灰渣Ҏ(gu)q净Q将芯模涂刷一遍好机a(b)Q便于降低脱模的d?</p> <p> 2.3在基坑内讄四个千斤??0o分布)Q位|设在底托盘?sh)面Q便于在脱模对底托盘先施加顶力,减少天R的荷载?</p> <p> 3.胶片套入芯模 </p> <p> 3.1先将底托盘用外模吊入内模Q放在激振环上,再将外模吊出?</p> <p> 3.2Z(jin)保证车间内的温度Q应在套胶片前将所有的大门全部关闭Q防止气温骤降,胶片变硬。选择柔YE度_的胶片,Z(jin)更快的作业,最?人合作,每h负责一个板卡,挂胶片时保证圆周均匀分布Q天车快速运行到芯模上端Q直到接q芯模上盖时再降低速度Q下胶片时最好保证芯模上4人,基坑?-3人,当胶片套入芯模h员用脚踢胶片Q其能利下降Q胶片还?c高时即可摘掉板卡,q时可以开启振动器Q基坑内的h员用手抓住胶片的T键往下拉Q但应注意不要往外抻Q防止胶片变形?</p> <p> 3.3胶片套入后,应仔l检查胶片是否存在问题,如:(x)鼓包、长度、缺键、周ѝ下端^齐、开焊等Q确认无问题后,用堵漏剂胶片与底托盘的~隙堵住Q然后套入外模,攑օ钢筋骨架Q下骨架时应注意内层{的垫爪攑օ两个T键内Q用胶板条将胶片上端住Q即可开始生产?</p> <p> 4.布料生 </p> <p> 4.1Z(jin)防止子下端漏浆Q第一盘؜凝土直接喂入Q等喂第二盘料时再开启振动器Q应保证混凝土的动性和布料口适度Q便于؜凝土能及(qing)时振q_ƈ表面液化。最后一盘料水灰比要比先前的很多,便于插口成型完整?</p> <p> 4.2布完料后胶板条摘掉Q搓压时应随时观察搓压盘能否压住胶片?</p> <p> 5.脱模 </p> <p> 5.1脱模前,先开启基坑内的千斤顶Q千斤剙住底托盘Q同时开启空压汽通入内模上的孔内Q用汽吹向胶片,减少胶片与芯模的摩擦力,q样情况下,天R与千斤顶、空压汽三者同时作用,注意不可只动其一?</p> <p> 5.2脱模?00㎜高时暂停,Ch配合在管子内壁上端放入内涨圈Q防止胶片脱落。完全脱出内模后Q在处理完胶片上U灰后,子下端同样加入内涨圈?</p> <p> 5.3模具吊到蒸d脱外模?</p> <p> 6蒸养 </p> <p> Z(jin)防止高温蒸养?x)导致胶片v鼓(chng)Q蒸L度最好控制到55?Z(jin)保证子的强度,蒸养16时Q到12时汽关闭Q其自焉温,防止子外壁出现裂纹?</p> <p> 7插口端胶片处?</p> <p> 因工E要求胶片与子上口q齐Q所以在修口Ӟ应用切割片切除胶片没有T键的部分Q应切割qx(chng)Q无参差不齐现象?</p> <p> 8子外壁与承插口面的处理 </p> <p> 8.1外壁刷一道水柏a(b)Q按?Q?在水柏a(b)内加_(d)要求刷均匀?</p> <p> 8.2承口和插口在修整好后刷两遍底漆,两遍面漆Q厚度达C于1.2㎜的环氧煤沥青漆?</p> </div> <div id="fxt28da" class="pagess"> <ul> <div>上一?<a href="229.html">承插水惔厂家的制管方式有哪几种</a></div> <div>下一?<a href="227.html">水惔批发时需要注意哪些事?</a></div> </ul> </div> <div id="vfbt2br" class="info_key"> <span>此文关键字:(x)</span> <a 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