Ageing process for sealed product

Abstract

Disclosed is an ageing process ( 100 ) for a group of sealed products to cause defective products among the group of sealed products, if any, to appear in advance so that the defective products can be subsequently detected easily and further removed from the group of sealed products. The ageing process includes the following steps: placing the sealed products into an ageing oven ( 10 ); releasing the gas originally existing in the ageing oven, and filling nitrogen gas and hydrogen gas into the ageing oven until the gas pressure inside the ageing oven reaches a first value; heating the sealed products until the temperature inside the ageing oven reaches a second value; conducting ageing on the sealed products under a specified time period and taking the sealed products out of the ageing oven after the time period is over.

1 . An ageing process for a group of sealed products comprising the following steps: 
 placing the sealed products into an ageing oven;    exhausting the gas originally existing in the ageing oven, and filling nitrogen gas and hydrogen gas into the ageing oven until the gas pressure inside the ageing oven reaches a first value;    heating the sealed products until the temperature inside the ageing oven reaches a second value;    conducting ageing on the sealed products under a specified time period; and    taking the sealed products out of the ageing oven after the specified time period is over.    
   
   
       2 . The ageing process of  claim 1 , wherein the sealed products are heat pipes.  
   
   
       3 . The ageing process of  claim 1 , wherein the sealed products are vapor chamber-based heat spreaders.  
   
   
       4 . The ageing process of  claim 1 , wherein the nitrogen gas and hydrogen gas are filled into the ageing oven in a mixed form.  
   
   
       5 . The ageing process of  claim 4 , wherein a ratio of the nitrogen gas and the hydrogen gas in volume is about 97:3.  
   
   
       6 . The ageing process of  claim 1 , wherein the first value is above atmospheric pressure.  
   
   
       7 . The ageing process of  claim 1 , wherein the second value is above 100 degrees centigrade.  
   
   
       8 . The ageing process of  claim 1 , wherein the first value and the second value are kept constant during the specified time period.  
   
   
       9 . An ageing process for a sealed product comprising the following steps: 
 providing an ageing oven, the ageing oven defining therein a chamber;    placing the sealed product into the chamber of the ageing oven;    filling two kinds of gases with different molecule sizes into the ageing oven; and    taking the sealed product out of the ageing oven after a specified time period.    
   
   
       10 . The ageing process of  claim 9 , further comprising steps of exhausting the oxygen that originally exists in the chamber before the gases are filled into the ageing oven and heating the sealed product.  
   
   
       11 . The ageing process of  claim 9 , further comprising steps of exhausting the oxygen that originally exists in the chamber when the gases are filled into the ageing oven and heating the sealed product.  
   
   
       12 . The ageing process of  claim 9 , wherein the two kinds of gases are nitrogen gas and hydrogen gas, respectively.  
   
   
       13 . The ageing process of  claim 9 , wherein the sealed product is one of a heat pipe and a vapor chamber-based heat spreader.  
   
   
       14 . An ageing method comprising following steps: 
 putting a sealed hollow product in an oven, wherein the sealed hollow product is vacuumed and has liquid and a wick structure therein;    heating the sealed hollow product under a temperature while injecting a mixture of nitrogen gas and hydrogen gas into the oven under a pressure;    maintaining the temperature and pressure for a period of time; and    removing the sealed hollow product from the oven.    
   
   
       15 . The ageing method in accordance with  claim 14 , wherein the mixture of nitrogen gas and hydrogen gas has a ratio in volume of about 97:3.  
   
   
       16 . The ageing method in accordance with  claim 14 , wherein the temperature is higher than 100 degrees centigrade.  
   
   
       17 . The ageing method in accordance with  claim 16 , wherein the temperature is about 125 degrees centigrade.  
   
   
       18 . The ageing method in accordance with  claim 16 , wherein the period of time is about 24 hours.  
   
   
       19 . The ageing method in accordance with  claim 14 , wherein the pressure is about 2-3 times of atmosphere pressure.  
   
   
       20 . The ageing method in accordance with  claim 19 , wherein the period of time is about 24 hours.