PTFE 945

 

Rulon 945
聚四氟乙烯
Saint Gobain Performance Plastics

产品说明

Rulon® 945 is a black PTFE-based material that has very low wear and deformation under load, making it ideally suited for demanding thermal applications. In fact, its deformation is the lowest of all Rulon® grades. It also possesses excellent chemical resistance and good dimensional stability.

Rulon® 945 is best suited for use against hard mating surfaces, like hardened steel substrates since it does have moderate abrasive qualities. It is not suitable in applications where electrically insulating properties are required.

总体

材料状态 • 已商用：当前有效   
供货地区 • 北美洲   
性能特点 • 尺寸稳定性良好 • 耐化学性良好 • 耐磨损性良好 
 • 泵件 • 密封 • 轴承 
用途 • 电气部件 • 汽车领域的应用：  
 • 电器用具 • 水箱  
外观 • 黑色   
形式 • 可定制外形   
加工方法 • 机器加工 • 挤出  

物理性能  额定值单位制 测试方法 
比重  1.90g/cm³ ASTM D792 
机械性能  额定值单位制 测试方法 
抗张强度 (屈服)  13.8MPa ASTM D638 
伸长率 (断裂)  20% ASTM D638 
摩擦系数  0.27 ASTM D1894 
负载变形 (10 MPa) • 1.40 ASTM D621 
 • 0.700%  
热性能  额定值单位制 测试方法 
线形膨胀系数   ASTM D696 
流动: 26 到 93°C  0.000050cm/cm/°C  
横向: 26 到 93°C  0.00013cm/cm/°C  
导热系数  0.69W/m/K ASTM C177 
补充信息    
Temperature, Typical Range: -400° to 550°F    
Flammability, ASTM D635: non-flammable    
Maximum Pressure(P): 1000 psi    
Maximum Velocity with no load (V-SFM): 400 ft/min    
Maximum PV (PxV): 10000 psi x ft/min    
Shaft Hardness - Minimum: Rc35    
Shaft Finish recommended: 8 ot 24 Ra    
Shaft Material: steel    
Chemical Resistance: Excellent    
Coef. of Friction, ASTM D1894, static & dynamic: 0.20 to 0.35    
备注    
1 一般属性：这些不能被视为规格。