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Rulon 945
聚四氟乙烯
Saint Gobain Performance Plastics

產品說明

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.

總體

材料狀態 • 已商用：當前有效   
供貨地區 • 北美洲   
性能特點 • 尺寸穩定性良好 • 耐化學性良好 • 耐磨損性良好 
 • 泵件 • 密封 • 軸承 
用途 • 電氣部件 • 汽車領域的應用：  
 • 電器用具 • 水箱  
外觀 • 黑色   
形式 • 可定制外形   
加工方法 • 機器加工 • 擠出  

物理性能  額定值單位制 測試方法 
比重  1.90g/cm³ ASTM D792 
機械性能  額定值單位制 測試方法 
抗張強度 (屈服)  13.8MPa ASTM D638 
伸長率 (斷裂)  20% ASTM D638 
摩擦系數  0.27 ASTM D1894 
負載變形 (10 MPa) • 1.40 ASTM D621 
 • 0.700%  
熱性能  額定值單位制 測試方法 
線形膨脹系數   ASTM D696 
流動: 26 到 93°C  0.000050cm/cm/°C  
橫向: 26 到 93°C  0.00013cm/cm/°C  
導熱系數  0.69W/m/K ASTM C177 
補充信息    
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    
備注    
1 一般屬性：這些不能被視為規格。