Equipment manufacturing
TH-99

SHY-99 heat-exchanger for anticorrosion coating(ZHONGHAI system)

    Using scope of coating    

1.Condensor, heat exchanger and air cooler 

2.The designed working temperater is within 150℃ ~240℃
    Implementation standards     

SH/T3540 《producing and inspection rules for complicated coating of tube of steel heat-exchanger》

    Suitable coating material     

1.Fresh water, ocean water, bitter alkaline water, salt industrial recycling water, distilled water and steam. 

2.Weak-acid medium and alkaline medium, sulphur medium ,can resist steam purging. 
3.Gaslion, fuel oil, solvent oil. Crud oil, engine oil, vacuum pump oil and other oil-water high temperature exchanger. 
    Technical property of coating    

1.Ingredients of coating: SHY-99 corrosion-resistant coating is a special coating for one-component new style cool exchanger made up with high-molecular polymer, the filler with heat and rust resistance and special additive transformed from nanometer materials. The performance of the High –molecular polymer transformed from nanometer is much more outstanding than normal polymer, such as good penetration resistance, good corrosion resistance, good rust resistance ,good temperature-resistance and can prevent vapor purging. 
2.The performance of coating:SHY-99 corrosion-resistant coating is a product with low viscosity and high solid content. The film depth of the single-channel coating is thicker than coating of other heat exchanger, which can reach the requirements of coating depth through reducing coating number and then improve coating efficiency. Meanwhile the coating is smooth and even, flexible and hard, good thermal conductivity, stable physical mechanical performance and chemical properties.(see table)

 Physical mechanic performance


项目

检测方法

SHY-99

颜色

GB/T1722

漆膜外观正常

漆膜外观正常

附着力:(级)

GB/T1720

1

≤1

粘度涂—4杯S/25℃

GB/T1723

≥50

≥50

柔韧性:(mm)

GB/T1731

≤1

≤1

冲击强度Kg/cm2

GB/T1732

≥50

≥50

固含量%

 

≥60

≥65

细度μm

 

≤60

≤40

干燥时间
表干
烘干

 

≤20
≤155±5℃*2

≤2
≤155±5℃*2(前几道)
≤160℃*2(最后一道)

适应性

 

自来水、工业循环水、海水、苦咸水、饱和盐水、酸、碱、盐溶液、工业油品的换热器、容器等的防腐

Chemical anti-corrosion performance

介质分类

介质名称

SHY-99

介质温度℃

浸泡时间

涂层结果

海水、半咸水

85℃±1℃

24个月

无变化

 

工业循环水

85℃±1℃

36个月

无变化

碱溶液

25%NaOH、25%KOH、25%NaCO

常温

24个月

无变化

≤95 336个小时

酸溶液

25%H匠伀萀、25%HCI、25%H倠伀萀、25%HAC

常温

24个月

无变化

Note:Detection index of coating quality 

Detection of apperance: the surface is clean, no foreign matters, no bubbles,no flows, the color and the sense are unanimous. 
Depth of coating: according to the standard SH/T3540, the depth of dry film is 150±30μm. 
Sideleakage of coating: tested with electrical spark aparatus, re-painting if there is any leakage of coating film. 
Detection of coating film: before installation and use, trying to avoid any mechanical collison or flexible friction in the process 
of transportation and removal repair. 
Please entrust our company to repair in the field if any coating mechanical damage. 



 

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