GH404橡塑型环氧煤沥青冷缠带(PRC/RPC带)
它是用橡胶(rubber)、塑料(plastic)、环氧煤沥青(coaltar epoxy)制成的带状卷材,用无溶剂环氧煤沥青胶在钢管表面形成防腐层,施工方法简易、快捷,省工、省时、省能源。本产品属环保型,无污染,涂层坚韧、厚度均匀、强度高、粘接力大, 1万伏电压检查无针孔、耐水、耐酸碱盐、耐日光老化,寿命长久
配方研究要求
1、缠带研制
通常环氧煤沥青冷缠带固化后是硬而脆的,不可能制成有塑性而坚韧的带状卷材,东化公司通过高科技手段,将环氧煤沥青、橡胶、塑料经混炼,压延、硫化制成带状卷材。此缠带柔软、坚韧、便于施工。因与无溶剂底胶有相同组份(环氧煤沥青),所以两者能很好的粘结,形成牢不可分的防腐层。
2、底胶研制
底胶是采用无溶剂环氧煤沥青涂料,无溶剂涂料有以下优点:
(1)提高涂层质量。施工过程没有溶剂挥发,涂层密实无针孔,提高了防腐性能。
(2)简化施工程序。溶剂型涂料在施工中因溶剂挥发涂层产生针孔,形成隐患,为了减少针孔,必须采用多层涂敷施工,至少涂3~4遍才能消除针孔。
(3)提高工效加快工期,减少了施工人数,节省了人工费用。
(4)无溶剂涂料在生产和使用中,没有可挥发性的物质(如甲苯、二甲苯)为此减轻了生产车间和施工现场的环境问题,改善了工作环境。
(5)节约了能源。溶剂中的甲苯、二甲苯等物质都是能源产品,无溶剂产品节约了大量能源。
1、表面处理。钢材表面清除油污,喷砂除锈至达到GB/T? 8923的Sa 2级,最好达到Sa 2 1/2级。施工条件受限制时,也可采用工具除锈至St? 3级。钢表面处理合格后,必须在返锈前尽快进行防腐施工。混凝土应干透,清除表面疏松物质,呈现平整坚实的表面。
2、配底胶。甲组份 : 乙组份=1: 1,充分混合均匀,静置熟化5~10min后使用。底胶使用快干固化剂,固化速度快,配好后应在2h内用完,施工时应现配现用,以免造成凝胶损失。配底胶时不能添加稀释剂,以免过稀,使防腐层厚度达不到要求。
3、焊缝打腻子。对高于钢管表面1mm的焊缝两侧及两块钢板的搭接处,应打腻子形成光滑过渡面,对混凝土表面的凹坑,也应打腻子抹平。腻子由配好的底胶加滑石粉调匀制成,调好后宜在4h内用完。
4、涂底胶和缠基带。涂底胶前钢材或混凝土表面必须干燥,底胶要涂匀,不得漏涂。涂底胶后立即缠绕(或粘贴)基带,搭接20~25mm,必须拉紧或压平,使表面平整,接触紧密无气泡。在缠绕前最好将基带一端浸入底胶中约20mm,沾上底胶后再缠,或边缠边在搭缝处涂刷底胶,可有效增加搭接缝的严密性。对缠的好防腐层两端加缠聚乙烯胶粘带固定。
5、质量检验。防腐层缠后静置自干,实干后按建设部GB 50268—97标准(或其它行业标准)规定的条件和方法,进行外观、厚度、电火花检验和粘附性检查。
6、如遇急需下沟回填的特殊情况,在缠完橡塑带后即可在注意保护、避免碰撞的情况下进行运输、下沟和回填土施工,防腐层可在沟下最终达到完全固化。
PRC冷缠带是一种新型的管道外防腐层,它综合了多种防腐层的优点:
(1)具有环氧煤沥青防腐层的机械强度高,粘结力大、耐水、耐微生物、耐植物根的优点。
(2)因PRC冷缠带中以合成橡胶和合成塑料为主,使其具有挤出聚乙烯防腐层的韧性和耐老化性能。
(3)缠带施工工艺简便、灵活,具有聚乙烯冷缠带的优点,既可在预制厂加工防腐层,又可以现场防腐施工,但它又优于聚乙烯缠带,因底胶是无溶剂环氧煤沥青,粘度高,厚度大,可以在风沙天气施工,对粘结力无影响。
综上所述,RPC冷缠带施工方法简便易行,厚度均匀,质量稳定,耐水、耐微生物,耐植物根、耐多种化学介质的浸蚀,机械强度高,耐碰撞、修补方便,是一种低成本、高效能的新型防腐层。
橡塑型防腐冷缠带|增强型聚丙烯防腐胶带|丁基型聚乙烯防腐胶带|热收缩带|热收缩套|无溶剂环氧涂料|热缩管|热缩型电力电缆附件|冷缩型电力电缆附件|氧熔棒
主要产品:PRC橡塑型环氧煤沥青冷缠带,聚乙烯防腐胶带,聚丙烯纤维防腐胶带,聚乙烯一体防腐带,辐射交联聚乙烯热收缩套,热收缩带,防水帽,补伤片,无溶剂防腐涂料,保温材料,环氧煤沥青涂料,热缩管,带胶热缩管,氧熔棒,粘弹体防腐材料,热缩型、冷缩型电力电缆附件、太阳能电池组件专用密封胶等产品。
公司是一家以防腐热缩技术研发销售为一体综合性高新技术企业。自创立以来,一直秉承“精益求精、诚实守信”的理念和以“整合渠道资源,促进本行业发展”的思想不懈地努力着,我们的宗旨是:“开拓进取,诚信为本,以客户的需求为中心”。
在经营过程中以优良的职业道德、一流的商业信誉、高质量的产品、完善的售后服务赢得了广大用户的信赖和支持。本公司渠道广泛、实力雄厚、技术精通,支持专业。
公司现有生产设备:聚乙烯防腐胶粘带生产线一条,聚丙烯防腐胶带生产线一条,铝箔防腐胶粘带生产线一条,辐射交联热缩制品生产线两条,防腐防水热缩帽生产线一条,电子加速器辐照线一条;基材压延机组、上胶机组、密闭式炼胶机组、塑料挤出机组、制冷机组、分切机组、供热机组、开炼式炼胶机组。年产丁基橡胶防腐冷缠带1500吨,聚丙烯防腐胶带90万平方、丁基橡胶改性沥青胶带90万平方,热缩制品2000吨,冷缩制品800吨,防腐涂料1000吨。
所经营的产品产品经中国石油天然气集团公司防腐保温产品质量监督检验中心和中国石油管道公司管道科技研究中心综合实验室测试,各项指标均达到或优于有 关标准要求。
展望未来:山高方知路远,水激才感源深。在我们发展壮大的路上及当前电子商务网络信息化日益普及的时代,我们将为广大客户提供完善的售后服务,做到即需即到、尽心尽力、服务专业,努力以更完善的售后服务和过硬的技术支持,回报社会,回报客户,并将与广大客户及业界同仁携手共进,共享成功。
欢迎广大新老顾客光临惠顾,我们将竭诚为您服务!Heat shrinkable materials;Cold shrink materials;Anti-corrosion coatings
Product range: Polyethylene anticorrosive adhesive tape, polypropylene fiber anticorrosive adhesive tape, polyethylene type 660 integrated anticorrosive adhesive tape, radiant cross-linked polyethylene heat-shrinkable sleeve, heat-shrinkable strip, water-proof cap, mending plate, polyethylene double-sided anticorrosive adhesive tape, solvent-less anticorrosive coatings, nanometer ceramic anticorrosive materials, coal-tar epoxy paint, heat-shrinkable tube, heat shrinkable tube with adhesive tape and anticorrosive products for heat-shrinkable power cable accessories.
Since its establishment, the company has all the time upheld the concept of "striving constantly for perfection and adhering to honesty and trustworthiness" and worked unremittingly based on the thought of "Integrating with channel resources and promoting the development of the industry". Our tenet is "Developing and enterprising, oriented to integrity and focusing upon the demand of customer."
We have won the faith and support of our customers with excellent professional ethics, first-class commercial reputation, high quality products and perfect after-sales services in the course of operation. The company has had extensive channels, substantial strength, consummate technology and specialized support.
The products operated and sold by us have been tested by the Quality Supervision and Inspection Center of Anticorrosive Thermal-Insulting Products of China National Petroleum Corporation and the Comprehensive Laboratory of the Pipeline Technology Research Center of China Petroleum Pipeline Engineering Corporation. The whole indexes have reached or exceeded relevant standards and requirements.
Looking forward to the future: a high mountain makes us realize that the road is far; only rapid-flowing water can we realized that it has a deep source. On the road of increasing development and the times at which the current electronic commerce network information is increasingly popular, we will supply the customers with perfect after-sales service, try to supply immediate services on demand, give specialized services whole-heartedly, make great efforts to support more perfect after-sale services and first-rate technical support, repay the society and the customers. Go forward hand in hand with the customers and the industry colleagues and share with success.
Welcome new and old customers to visit us, and we will serve you with utmost sincerity.