流量统计:
 
 
Anti-Acid﹠Anti-Alkali bearings

  *PVDF Engineering plastics elucidation
     PVDF(Polyvinylidene fluoride) shows a higher tensile strength, pressure resistance and dimensional stability than the related PTFE, but friction and insulation properties are lower. PVDF has a high mechanical strength and toughness at lower temperature and it’s self-extinguishing. The temperature ranges from -60℃~+150℃.。
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Advantages :
· high tensile strength
· high mechanical  strength
· high chemical resistance
· low water absorption
· good friction and wear  and tear values
· self-extinguishing
· high UV-resistance


Disadvantages :
· toxic fumes when  burned
·can not be solvent  cemented

Applications:
泵阀部件,饮用水污水管道,密封件,喷涂载体,电镀工艺,玩具部件,牙医用导管。

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Plastics Deep groove ball bearings table size Plastics Insert bearings table size
Plastics Thrust ball bearings table size Plastics Angular contact ball bearings table size
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  *HDPE Engineering plastics elucidation
   HDPE (High Density Polyethylene)There two Polyolefins offer resistance to almost all acids and bases, detergents and hot water. PE has good insulation properties and is easy to weld. The operating temperature of HDPE is from -50℃ to +90℃.
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Advantages :
· light weight
·high toughness (also at  low remperature)
· high elongation
·very good electrical and dielectric properties
· very low water  absorption
· low steam permeability
· high chemical resistance
· good protection against  stress cracking
· food safe


Disadvantages :
· soft surface (low  tensile strength)
· HF welding not  recommended
· difficult to varnish  and glue
· not weather  resistant

Applications:
Drinking water soil pipe way, hot water piping, conveyance container, pump with valve a department, cure to use the tool parts

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在线交谈