水泥砂浆衬里防腐钢管

由于钢管内填有混凝土，能吸收大量的热能，因此遭受火灾时管柱截面温度场的分布很不均匀，增加了柱子的耐火时间，减慢钢柱的升温速度，并且一旦钢柱屈服，混凝土可以承受大部分的轴向荷载，防止结构倒塌。组合梁的耐火能力也会提高，因为钢梁的温度会从**部翼缘把热量传递给混凝土而降低。经实验统计数据表明:达到一级耐火3小时要求和钢柱相比可节约*涂料1/3一2/3甚至更多，随着钢管直径增大，节约涂料也越多。
输水钢管通过离心机或管道喷涂机在钢管内壁形成水泥涂层，主要是延长给水管道的使用寿命，保护水质，提高管道输水能力。

沧州市螺旋钢管有限责任公司位于沧州市新华区解放东路92号，是2000年由沧州市螺旋钢管厂（成立于1994年）改制而成立的股份制公司，大型二档企业、河北省**冶金企业。公司占地30万平方米，总资产5.3亿元，现有职工840人，其中有各类职称的占10%，年产螺旋钢管30万吨，产值15亿元。
沧螺集团包括沧州市螺旋钢管有限责任公司、沧州市双龙钢管有限责任公司、沧州市泰瑞丰达**贸易有限公司、沧州市欧凯管道防腐保温工程有限责任公司及内蒙古正源钢管制造有限责任公司。
公司现有十三条螺旋钢管生产线，能生产Φ219-Φ3500mm双面埋弧焊钢管，壁厚为6-28mm，注册商标“五洲”牌，产品符号SY/T5037-2000标准、GB/T9711.1-1997标准和API Spec 5L标准，材质为Q23**B、16Mn和X42-X80级钢板，被广泛应用于天然气、石油、化工、电力、热力、水源等长距离输送管道。
   多年来，公司把客户放在**位，建立起了产品售前、售中、售后服务规范，*、全过程满足顾客要求，使我们的产品和服务深得顾客的信赖，与顾客建立起了长期合作和互利关系。公司连续多年被省市**评为“**良好企业”、被地区经贸委、地区工商总局等十部委授予“全国百家重合同守信用企业”、“全国质量服务**单位”、被中国农业银行河北省分行授予“AAA级信用企业”等荣誉称号，“五洲”牌产品也被评为“河北省**产品”、“中国钢管**名优**”。


Cangzhou City Spiral Pipe Co., Ltd. is located in Cangzhou City, Xinhua District, Liberation Road No. 92, is in 2000 by the Cangzhou City Spiral Pipe Plant (established in 1994) restructuring and the establishment of joint-stock companies, large second gear enterprises, . The company occupies 300,000 square meters, the total assets of 530 million yuan, 840 employees, including all types of titles 10 percent, with an annual output of 300,000 tons of spiral steel pipe, the output value of 1.5 billion.
    Cangluo Group includes Cangzhou Spiral Steel Pipe Co., Ltd., Cangzhou Shuanglong Steel Pipe Co., Ltd., Cangzhou Tairui Fengda International Trade Co., Ltd., Cangzhou Oukai Pipeline Anticorrosion Insulation Engineering Co., Ltd. and Inner Mongolia Zhengyuan Steel Pipe Manufacturing Co., Ltd. the company.
Company's existing 13 spiral steel pipe production line, can produce Φ219-Φ3500mm double-sided submerged arc welded steel pipe, wall thickness of 6-28mm, the registered trademark of "Wuzhou" brand SY / T5037-2000 product standard, GB / T9711.1 -1997 standard and API Spec 5L standard, made of Q23**B, 16Mn and X42-X80 grade steel plate, are widely used in natural gas, petroleum, chemical, power, heat, water and other long-distance pipeline.
      The company insists on the quality of the factory, the full implementation of quality management, 2000 has achieved ISO9001 quality management system certification, product from the signing of the contract, raw materials procurement, production, testing and after-sales service the entire process of strict control, and Cangzhou City Technical Supervision and Inspection Departments, Hebei Province, the quality supervision and inspection departments, and other professional testing departments of the regular testing, product performance in full compliance with standards, to ensure that customers provide satisfactory products and services.
Over the years, the company put the customer first, and establish a pre-sale products, sales, after-sales service standards, all-round, the entire process to meet customer requirements so that our products and services won the trust of customers, and customers to establish Played a long-term cooperation and mutually benef