双金属耐磨管道

双金属耐磨管道在生产工艺上直管采用离心铸造技术,该技术是将两种金属都在液态下熔合成型,实现了真正冶金结合的目的,其结合层剪切强度高于本体金属,完全实现了基层和耐磨层力学互补。

双金属耐磨管道包括:双金属耐磨直管、双金属耐磨弯头、双金属耐磨三通、双金属耐磨异径管等管件采用消失模真空吸铸复合工艺,其工艺先进,有效地解决了弯管无法复合的难题,弯管和其它各种异形管道能做到整体复合,不改变物料在弯管中的流动轨迹,大大降低物料输送阻力。

大直径的双金属耐磨弯管加工现场
大直径的双金属耐磨弯管加工现场

在材质的选用上离心管的外壁采用碳素钢,保证了双金属耐磨管具有很高的机械强度和抗冲击性能;内衬耐磨层选用我公司自主研发的抗磨合金钢系列,该钢主要添加Cr-Ni-Mo-Cu-RE等合金,经过调质热处理工艺,使该合金钢既有较强的耐磨、耐腐蚀特性,又有较高的机械强度和抗冲击性能。

我公司的整套工艺属国内首创,填补了我国防腐耐磨工业输送管道的空白,并已达到国际先进水平,已广泛应用于矿山、冶金、煤炭、电力等行业,是一种理想的耐磨管道。

异形三通双金属耐磨管
异形三通双金属耐磨管

双金属耐磨管的优势特点:

1、良好的耐磨性 超硬度耐磨合金的硬度HRC≥56,具备很好的耐磨性能和热稳定性。 

2、优秀的抗冲击性能、金属结合性能、抗热震性能 KMTBCr28双金属复合耐磨弯头,两种金属的结合面完全是冶金结合,使用安全可靠。两者热膨胀系数相当,不会出现胀缩崩裂现象。弯头的外壁采用钢管,内衬采用超硬度耐磨合金,该产品既具有高合金产品的耐磨、耐腐蚀特性,又有较高的机械性能和较高的抗冲击性能。 

3、良好的耐热、耐腐蚀性能 超硬合金材料的基体有较强的耐热、耐蚀性能,在高温或腐蚀环境下能显示出良好的耐蚀、耐磨性能。在湿态、有腐蚀介质和颗粒冲刷交相作用下,采用铸态使用的超硬度耐磨合金是比较适宜的;而在以磨料磨损为主要失效方式的干态工况条件下,则选用一种可通过热处理获得马氏体基体的超硬度耐磨合金材料。 

4、复合成本低、质量好 双金属耐磨管采用国际先进的消失模铸造工艺制造,成品率高,产品致密性好,厚度均匀,质量稳定。 

5、运输、安装、使用方便 双金属耐磨管可采用法兰、快速接头、直接焊接等方式连接。而且由于复合管抗击打性能高,在管道系统检修中发生局部堵塞时,可随意敲击、锤打,也可以随意切割、卸换、焊接,安装,检修非常方便。

离心浇铸双金属耐磨管设备
离心浇铸双金属耐磨管设备

双金属耐磨管生产工艺离心浇铸的特点:

(1)离心铸造工艺是使钢液在远高于常规浇铸几十倍的重力条件下凝固成型,很好解决了铸态管坯内部疏松的问题,金属致密度高,其排渣、排气效果好。

(2)离心铸管的尺寸精度高,壁厚均匀,为后续加工产品的尺寸精度提供了有利的保证。   

(3)离心铸造工艺对于小批量、多品种多规格、高品质、高附加值钢的钢管生产,具有较高的灵活性。

双金属耐磨管耐磨层化学成分:
元素 C Si Mn Cr P S 其他
含量 2.0~3.5 <1.2 <2.0 15~30 <0.1 <0.1 适量
双金属耐磨管机械性能:
抗弯强度
δS’(MN/m2)
抗拉强度
δb’(MN/m2)
冲击韧性
δk’(J/cm2)
耐磨层硬度
HRC
静水压试验压力
MPA
>610 >415 >15 >55 5.6~12.9
Properties of the Ceramic-lined Steel Composite Pipes >>
Ceramic (Corundum: a-Al2O3) lined abrasion resistant straight pipe and fittings are lined with highly abrasion resistant ceramic by SHS ----Characteristics of SHS self-burning ceramic composite pipe

Standard and identification of Abrasion resistant pipe

Abrasive Applications

One-hundred-twenty-nine-million tons of coal ash—a byproduct of the coal burning process—is produced every year.

Classification and designation of wear-resistant pipes for power industry

Most power plants transport the coal ash in liquid form to large surface impoundments or in solid form at landfills near the facility through long lengths of steel piping, which can range in length from several thousand feet to miles.

Application of Abrasion resistant pipe

Abrasion resistant pipe applied in coal-fired power plant ash and slag discharge tube, powder, powder tube, desulfurization pipeline,in addition also widely used in the following industries:

Q&A

Because the outer surface behaves like mild steel, the product can be cut and welded with proper procedure in the field, configured into a variety of fittings, and can accept the standard end options of flanges, weld rings and couplings.

Warranty

We are Quality Department tests and ensures all of our products are 100% inspected unreported. To an offer we customers additional corps of mind, all our products carry a 24-month warranty against defects or faulty workmanship.We fluid-flow products such as pipe and fittings, chokes, orifice plates, etc, carry a warranty against, erosion, defects, and/or faulty workmanship.

The warranty is determined to each creator and the maximum duration maximally in service. Should any of the RS fail within the warranty period, We'll replace or repair the defective product (s) at No. end user. Please contact the Sunny steel for details on the How to obtain a warranty for our products.

Inspections

As part of our quality regimen, 100% of incoming raw materials, semi-finished products, as well as finished products are thoroughly inspected prior to being entered into our inventory. We have established multiple hold points throughout fabrication as well as a comprehensive final inspection for all products.



SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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